./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/goblint-regression/09-regions_01-list_rc.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/goblint-regression/09-regions_01-list_rc.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3468cfea1e2552ee69c1236196f7193e72e290c81920516b4f57e05ea8ee84cc --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-29 02:09:23,915 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 02:09:23,917 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 02:09:23,948 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 02:09:23,949 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 02:09:23,951 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 02:09:23,952 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 02:09:23,954 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 02:09:23,955 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 02:09:23,959 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 02:09:23,959 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 02:09:23,961 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 02:09:23,961 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 02:09:23,963 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 02:09:23,963 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 02:09:23,967 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 02:09:23,968 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 02:09:23,969 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 02:09:23,970 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 02:09:23,973 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 02:09:23,974 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 02:09:23,975 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 02:09:23,975 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 02:09:23,976 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 02:09:23,981 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 02:09:23,981 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 02:09:23,981 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 02:09:23,982 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 02:09:23,982 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 02:09:23,983 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 02:09:23,983 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 02:09:23,984 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 02:09:23,985 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 02:09:23,986 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 02:09:23,986 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 02:09:23,987 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 02:09:23,987 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 02:09:23,987 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 02:09:23,987 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 02:09:23,988 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 02:09:23,988 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 02:09:23,989 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-29 02:09:24,013 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 02:09:24,013 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 02:09:24,014 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 02:09:24,014 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 02:09:24,015 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 02:09:24,015 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 02:09:24,015 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 02:09:24,015 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 02:09:24,015 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 02:09:24,015 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 02:09:24,016 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 02:09:24,016 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 02:09:24,017 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 02:09:24,017 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 02:09:24,017 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 02:09:24,017 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-29 02:09:24,017 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 02:09:24,017 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-29 02:09:24,017 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-29 02:09:24,017 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 02:09:24,018 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-29 02:09:24,018 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 02:09:24,018 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-29 02:09:24,018 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 02:09:24,018 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 02:09:24,018 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 02:09:24,018 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 02:09:24,019 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 02:09:24,019 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 02:09:24,019 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-29 02:09:24,019 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 02:09:24,019 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 02:09:24,019 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 02:09:24,019 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-29 02:09:24,020 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 02:09:24,020 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 02:09:24,020 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 02:09:24,020 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3468cfea1e2552ee69c1236196f7193e72e290c81920516b4f57e05ea8ee84cc Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-29 02:09:24,246 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 02:09:24,267 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 02:09:24,269 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 02:09:24,270 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 02:09:24,270 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 02:09:24,271 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/09-regions_01-list_rc.i [2023-08-29 02:09:25,216 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 02:09:25,434 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 02:09:25,434 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/09-regions_01-list_rc.i [2023-08-29 02:09:25,459 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f6838596/fee21caa4dbc46b091e0a74cd0637a97/FLAG4c0d05818 [2023-08-29 02:09:25,467 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f6838596/fee21caa4dbc46b091e0a74cd0637a97 [2023-08-29 02:09:25,474 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 02:09:25,475 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 02:09:25,477 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 02:09:25,477 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 02:09:25,481 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 02:09:25,481 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 02:09:25" (1/1) ... [2023-08-29 02:09:25,482 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6204803e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:09:25, skipping insertion in model container [2023-08-29 02:09:25,482 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 02:09:25" (1/1) ... [2023-08-29 02:09:25,486 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 02:09:25,529 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 02:09:25,860 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 02:09:25,871 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 02:09:25,902 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 02:09:25,957 INFO L208 MainTranslator]: Completed translation [2023-08-29 02:09:25,958 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:09:25 WrapperNode [2023-08-29 02:09:25,958 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 02:09:25,959 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 02:09:25,959 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 02:09:25,959 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 02:09:25,963 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:09:25" (1/1) ... [2023-08-29 02:09:25,974 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:09:25" (1/1) ... [2023-08-29 02:09:26,007 INFO L138 Inliner]: procedures = 368, calls = 35, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 171 [2023-08-29 02:09:26,007 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 02:09:26,007 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 02:09:26,008 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 02:09:26,008 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 02:09:26,013 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:09:25" (1/1) ... [2023-08-29 02:09:26,014 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:09:25" (1/1) ... [2023-08-29 02:09:26,018 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:09:25" (1/1) ... [2023-08-29 02:09:26,019 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:09:25" (1/1) ... [2023-08-29 02:09:26,027 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:09:25" (1/1) ... [2023-08-29 02:09:26,029 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:09:25" (1/1) ... [2023-08-29 02:09:26,032 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:09:25" (1/1) ... [2023-08-29 02:09:26,039 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:09:25" (1/1) ... [2023-08-29 02:09:26,042 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 02:09:26,042 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 02:09:26,042 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 02:09:26,042 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 02:09:26,043 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:09:25" (1/1) ... [2023-08-29 02:09:26,047 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 02:09:26,060 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 02:09:26,069 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-29 02:09:26,087 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-29 02:09:26,096 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 02:09:26,096 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-08-29 02:09:26,096 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 02:09:26,096 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-29 02:09:26,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-29 02:09:26,097 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-29 02:09:26,098 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-29 02:09:26,098 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-29 02:09:26,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-08-29 02:09:26,098 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-29 02:09:26,098 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-29 02:09:26,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-29 02:09:26,098 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 02:09:26,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 02:09:26,099 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-29 02:09:26,232 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 02:09:26,234 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 02:09:26,494 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 02:09:26,500 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 02:09:26,503 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-29 02:09:26,504 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 02:09:26 BoogieIcfgContainer [2023-08-29 02:09:26,505 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 02:09:26,506 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 02:09:26,507 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 02:09:26,509 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 02:09:26,509 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 02:09:25" (1/3) ... [2023-08-29 02:09:26,509 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59bf2fe5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 02:09:26, skipping insertion in model container [2023-08-29 02:09:26,509 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:09:25" (2/3) ... [2023-08-29 02:09:26,510 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59bf2fe5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 02:09:26, skipping insertion in model container [2023-08-29 02:09:26,510 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 02:09:26" (3/3) ... [2023-08-29 02:09:26,511 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_01-list_rc.i [2023-08-29 02:09:26,515 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-29 02:09:26,521 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 02:09:26,521 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2023-08-29 02:09:26,521 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 02:09:26,630 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-29 02:09:26,666 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 198 places, 194 transitions, 393 flow [2023-08-29 02:09:26,742 INFO L130 PetriNetUnfolder]: 0/193 cut-off events. [2023-08-29 02:09:26,742 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 02:09:26,745 INFO L83 FinitePrefix]: Finished finitePrefix Result has 197 conditions, 193 events. 0/193 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. 0/175 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-08-29 02:09:26,745 INFO L82 GeneralOperation]: Start removeDead. Operand has 198 places, 194 transitions, 393 flow [2023-08-29 02:09:26,753 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 197 places, 193 transitions, 389 flow [2023-08-29 02:09:26,755 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 02:09:26,762 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 197 places, 193 transitions, 389 flow [2023-08-29 02:09:26,764 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 197 places, 193 transitions, 389 flow [2023-08-29 02:09:26,764 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 197 places, 193 transitions, 389 flow [2023-08-29 02:09:26,787 INFO L130 PetriNetUnfolder]: 0/193 cut-off events. [2023-08-29 02:09:26,787 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 02:09:26,788 INFO L83 FinitePrefix]: Finished finitePrefix Result has 197 conditions, 193 events. 0/193 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. 0/175 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-08-29 02:09:26,798 INFO L119 LiptonReduction]: Number of co-enabled transitions 4092 [2023-08-29 02:10:10,599 WARN L222 SmtUtils]: Spent 17.50s on a formula simplification that was a NOOP. DAG size: 287 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 02:10:19,770 WARN L222 SmtUtils]: Spent 9.16s on a formula simplification that was a NOOP. DAG size: 261 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 02:10:29,890 WARN L222 SmtUtils]: Spent 10.12s on a formula simplification that was a NOOP. DAG size: 287 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 02:10:34,115 INFO L134 LiptonReduction]: Checked pairs total: 34878 [2023-08-29 02:10:34,117 INFO L136 LiptonReduction]: Total number of compositions: 155 [2023-08-29 02:10:34,132 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 02:10:34,140 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;@3d04fd77, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 02:10:34,140 INFO L358 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2023-08-29 02:10:34,141 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-29 02:10:34,142 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 02:10:34,142 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:10:34,142 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-29 02:10:34,143 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-08-29 02:10:34,146 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:10:34,147 INFO L85 PathProgramCache]: Analyzing trace with hash 632, now seen corresponding path program 1 times [2023-08-29 02:10:34,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:10:34,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163387649] [2023-08-29 02:10:34,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:10:34,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:10:34,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:10:34,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:10:34,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:10:34,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163387649] [2023-08-29 02:10:34,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1163387649] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:10:34,245 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:10:34,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-29 02:10:34,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572755428] [2023-08-29 02:10:34,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:10:34,252 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-29 02:10:34,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:10:34,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-29 02:10:34,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-29 02:10:34,272 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 193 out of 349 [2023-08-29 02:10:34,275 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 73 transitions, 149 flow. Second operand has 2 states, 2 states have (on average 193.5) internal successors, (387), 2 states have internal predecessors, (387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:10:34,276 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:10:34,276 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 193 of 349 [2023-08-29 02:10:34,276 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:10:34,526 INFO L130 PetriNetUnfolder]: 78/405 cut-off events. [2023-08-29 02:10:34,526 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 02:10:34,529 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 1920 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. [2023-08-29 02:10:34,532 INFO L137 encePairwiseOnDemand]: 341/349 looper letters, 21 selfloop transitions, 0 changer transitions 0/65 dead transitions. [2023-08-29 02:10:34,532 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 65 transitions, 175 flow [2023-08-29 02:10:34,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-29 02:10:34,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-29 02:10:34,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 415 transitions. [2023-08-29 02:10:34,543 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5945558739255015 [2023-08-29 02:10:34,543 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 415 transitions. [2023-08-29 02:10:34,543 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 415 transitions. [2023-08-29 02:10:34,545 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:10:34,546 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 415 transitions. [2023-08-29 02:10:34,549 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 207.5) internal successors, (415), 2 states have internal predecessors, (415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:10:34,553 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 349.0) internal successors, (1047), 3 states have internal predecessors, (1047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:10:34,553 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 349.0) internal successors, (1047), 3 states have internal predecessors, (1047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:10:34,554 INFO L175 Difference]: Start difference. First operand has 77 places, 73 transitions, 149 flow. Second operand 2 states and 415 transitions. [2023-08-29 02:10:34,555 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 65 transitions, 175 flow [2023-08-29 02:10:34,556 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 65 transitions, 174 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 02:10:34,557 INFO L231 Difference]: Finished difference. Result has 69 places, 65 transitions, 132 flow [2023-08-29 02:10:34,558 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=349, 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} [2023-08-29 02:10:34,560 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, -8 predicate places. [2023-08-29 02:10:34,560 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 65 transitions, 132 flow [2023-08-29 02:10:34,561 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 193.5) internal successors, (387), 2 states have internal predecessors, (387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:10:34,561 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:10:34,561 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-29 02:10:34,561 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-29 02:10:34,561 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)] === [2023-08-29 02:10:34,562 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:10:34,562 INFO L85 PathProgramCache]: Analyzing trace with hash 607996781, now seen corresponding path program 1 times [2023-08-29 02:10:34,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:10:34,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473268935] [2023-08-29 02:10:34,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:10:34,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:10:34,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:10:34,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:10:34,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:10:34,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473268935] [2023-08-29 02:10:34,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1473268935] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:10:34,735 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:10:34,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 02:10:34,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710986249] [2023-08-29 02:10:34,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:10:34,736 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 02:10:34,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:10:34,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 02:10:34,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 02:10:34,762 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 177 out of 349 [2023-08-29 02:10:34,763 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 65 transitions, 132 flow. Second operand has 3 states, 3 states have (on average 178.66666666666666) internal successors, (536), 3 states have internal predecessors, (536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:10:34,763 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:10:34,764 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 177 of 349 [2023-08-29 02:10:34,764 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:10:35,084 INFO L130 PetriNetUnfolder]: 119/489 cut-off events. [2023-08-29 02:10:35,084 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 02:10:35,085 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 2352 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. [2023-08-29 02:10:35,086 INFO L137 encePairwiseOnDemand]: 345/349 looper letters, 25 selfloop transitions, 1 changer transitions 0/62 dead transitions. [2023-08-29 02:10:35,086 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 62 transitions, 178 flow [2023-08-29 02:10:35,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 02:10:35,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 02:10:35,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 560 transitions. [2023-08-29 02:10:35,088 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5348615090735435 [2023-08-29 02:10:35,088 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 560 transitions. [2023-08-29 02:10:35,088 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 560 transitions. [2023-08-29 02:10:35,089 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:10:35,089 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 560 transitions. [2023-08-29 02:10:35,090 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 186.66666666666666) internal successors, (560), 3 states have internal predecessors, (560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:10:35,101 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 349.0) internal successors, (1396), 4 states have internal predecessors, (1396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:10:35,101 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 349.0) internal successors, (1396), 4 states have internal predecessors, (1396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:10:35,101 INFO L175 Difference]: Start difference. First operand has 69 places, 65 transitions, 132 flow. Second operand 3 states and 560 transitions. [2023-08-29 02:10:35,102 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 62 transitions, 178 flow [2023-08-29 02:10:35,102 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 62 transitions, 178 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 02:10:35,103 INFO L231 Difference]: Finished difference. Result has 68 places, 62 transitions, 128 flow [2023-08-29 02:10:35,103 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=349, 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} [2023-08-29 02:10:35,104 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, -9 predicate places. [2023-08-29 02:10:35,104 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 62 transitions, 128 flow [2023-08-29 02:10:35,104 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 178.66666666666666) internal successors, (536), 3 states have internal predecessors, (536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:10:35,104 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:10:35,104 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:10:35,105 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-29 02:10:35,105 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)] === [2023-08-29 02:10:35,105 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:10:35,105 INFO L85 PathProgramCache]: Analyzing trace with hash 2109094868, now seen corresponding path program 1 times [2023-08-29 02:10:35,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:10:35,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813037790] [2023-08-29 02:10:35,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:10:35,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:10:35,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:10:35,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:10:35,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:10:35,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813037790] [2023-08-29 02:10:35,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1813037790] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:10:35,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:10:35,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 02:10:35,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739704529] [2023-08-29 02:10:35,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:10:35,559 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 02:10:35,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:10:35,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 02:10:35,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 02:10:35,768 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 349 [2023-08-29 02:10:35,769 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 62 transitions, 128 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) [2023-08-29 02:10:35,770 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:10:35,770 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 349 [2023-08-29 02:10:35,770 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:10:36,457 INFO L130 PetriNetUnfolder]: 419/1084 cut-off events. [2023-08-29 02:10:36,457 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 02:10:36,458 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 5335 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. [2023-08-29 02:10:36,472 INFO L137 encePairwiseOnDemand]: 335/349 looper letters, 66 selfloop transitions, 37 changer transitions 0/122 dead transitions. [2023-08-29 02:10:36,473 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 122 transitions, 454 flow [2023-08-29 02:10:36,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 02:10:36,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 02:10:36,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 962 transitions. [2023-08-29 02:10:36,475 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4594078319006686 [2023-08-29 02:10:36,475 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 962 transitions. [2023-08-29 02:10:36,475 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 962 transitions. [2023-08-29 02:10:36,476 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:10:36,476 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 962 transitions. [2023-08-29 02:10:36,477 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 160.33333333333334) internal successors, (962), 6 states have internal predecessors, (962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:10:36,480 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 349.0) internal successors, (2443), 7 states have internal predecessors, (2443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:10:36,481 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 349.0) internal successors, (2443), 7 states have internal predecessors, (2443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:10:36,481 INFO L175 Difference]: Start difference. First operand has 68 places, 62 transitions, 128 flow. Second operand 6 states and 962 transitions. [2023-08-29 02:10:36,481 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 122 transitions, 454 flow [2023-08-29 02:10:36,482 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 122 transitions, 453 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 02:10:36,484 INFO L231 Difference]: Finished difference. Result has 76 places, 98 transitions, 339 flow [2023-08-29 02:10:36,484 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=349, 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} [2023-08-29 02:10:36,485 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, -1 predicate places. [2023-08-29 02:10:36,485 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 98 transitions, 339 flow [2023-08-29 02:10:36,486 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) [2023-08-29 02:10:36,486 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:10:36,486 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:10:36,486 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-29 02:10:36,486 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)] === [2023-08-29 02:10:36,487 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:10:36,487 INFO L85 PathProgramCache]: Analyzing trace with hash -6498235, now seen corresponding path program 1 times [2023-08-29 02:10:36,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:10:36,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419228209] [2023-08-29 02:10:36,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:10:36,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:10:36,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:10:36,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:10:36,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:10:36,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419228209] [2023-08-29 02:10:36,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [419228209] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:10:36,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:10:36,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 02:10:36,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448595929] [2023-08-29 02:10:36,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:10:36,774 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 02:10:36,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:10:36,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 02:10:36,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 02:10:36,973 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 349 [2023-08-29 02:10:36,975 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 98 transitions, 339 flow. Second operand has 6 states, 6 states have (on average 142.5) internal successors, (855), 6 states have internal predecessors, (855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:10:36,975 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:10:36,975 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 349 [2023-08-29 02:10:36,975 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:10:37,756 INFO L130 PetriNetUnfolder]: 622/1669 cut-off events. [2023-08-29 02:10:37,757 INFO L131 PetriNetUnfolder]: For 233/246 co-relation queries the response was YES. [2023-08-29 02:10:37,759 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 9990 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. [2023-08-29 02:10:37,763 INFO L137 encePairwiseOnDemand]: 321/349 looper letters, 135 selfloop transitions, 77 changer transitions 0/246 dead transitions. [2023-08-29 02:10:37,763 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 246 transitions, 1150 flow [2023-08-29 02:10:37,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 02:10:37,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 02:10:37,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1036 transitions. [2023-08-29 02:10:37,766 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49474689589302767 [2023-08-29 02:10:37,766 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1036 transitions. [2023-08-29 02:10:37,766 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1036 transitions. [2023-08-29 02:10:37,767 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:10:37,767 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1036 transitions. [2023-08-29 02:10:37,768 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 172.66666666666666) internal successors, (1036), 6 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:10:37,771 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 349.0) internal successors, (2443), 7 states have internal predecessors, (2443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:10:37,772 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 349.0) internal successors, (2443), 7 states have internal predecessors, (2443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:10:37,772 INFO L175 Difference]: Start difference. First operand has 76 places, 98 transitions, 339 flow. Second operand 6 states and 1036 transitions. [2023-08-29 02:10:37,772 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 246 transitions, 1150 flow [2023-08-29 02:10:37,775 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 246 transitions, 1150 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 02:10:37,786 INFO L231 Difference]: Finished difference. Result has 85 places, 171 transitions, 913 flow [2023-08-29 02:10:37,786 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=349, 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} [2023-08-29 02:10:37,787 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 8 predicate places. [2023-08-29 02:10:37,787 INFO L495 AbstractCegarLoop]: Abstraction has has 85 places, 171 transitions, 913 flow [2023-08-29 02:10:37,788 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 142.5) internal successors, (855), 6 states have internal predecessors, (855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:10:37,788 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:10:37,788 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:10:37,788 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-29 02:10:37,788 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)] === [2023-08-29 02:10:37,788 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:10:37,789 INFO L85 PathProgramCache]: Analyzing trace with hash 878072052, now seen corresponding path program 1 times [2023-08-29 02:10:37,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:10:37,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084712248] [2023-08-29 02:10:37,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:10:37,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:10:37,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:10:38,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:10:38,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:10:38,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084712248] [2023-08-29 02:10:38,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1084712248] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:10:38,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:10:38,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 02:10:38,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653424520] [2023-08-29 02:10:38,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:10:38,193 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 02:10:38,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:10:38,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 02:10:38,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-08-29 02:10:38,698 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 139 out of 349 [2023-08-29 02:10:38,699 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 171 transitions, 913 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) [2023-08-29 02:10:38,699 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:10:38,699 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 139 of 349 [2023-08-29 02:10:38,699 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:10:39,882 INFO L130 PetriNetUnfolder]: 743/1912 cut-off events. [2023-08-29 02:10:39,882 INFO L131 PetriNetUnfolder]: For 1437/1445 co-relation queries the response was YES. [2023-08-29 02:10:39,884 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5654 conditions, 1912 events. 743/1912 cut-off events. For 1437/1445 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 11371 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. [2023-08-29 02:10:39,890 INFO L137 encePairwiseOnDemand]: 335/349 looper letters, 235 selfloop transitions, 64 changer transitions 2/335 dead transitions. [2023-08-29 02:10:39,890 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 335 transitions, 2307 flow [2023-08-29 02:10:39,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-08-29 02:10:39,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-08-29 02:10:39,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2273 transitions. [2023-08-29 02:10:39,895 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4341929321872015 [2023-08-29 02:10:39,895 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2273 transitions. [2023-08-29 02:10:39,895 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2273 transitions. [2023-08-29 02:10:39,896 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:10:39,896 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2273 transitions. [2023-08-29 02:10:39,900 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 151.53333333333333) internal successors, (2273), 15 states have internal predecessors, (2273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:10:39,904 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 349.0) internal successors, (5584), 16 states have internal predecessors, (5584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:10:39,906 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 349.0) internal successors, (5584), 16 states have internal predecessors, (5584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:10:39,907 INFO L175 Difference]: Start difference. First operand has 85 places, 171 transitions, 913 flow. Second operand 15 states and 2273 transitions. [2023-08-29 02:10:39,907 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 335 transitions, 2307 flow [2023-08-29 02:10:39,913 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 335 transitions, 2289 flow, removed 9 selfloop flow, removed 0 redundant places. [2023-08-29 02:10:39,918 INFO L231 Difference]: Finished difference. Result has 104 places, 203 transitions, 1299 flow [2023-08-29 02:10:39,919 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=349, 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} [2023-08-29 02:10:39,920 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 27 predicate places. [2023-08-29 02:10:39,920 INFO L495 AbstractCegarLoop]: Abstraction has has 104 places, 203 transitions, 1299 flow [2023-08-29 02:10:39,921 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) [2023-08-29 02:10:39,921 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:10:39,921 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:10:39,921 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-29 02:10:39,921 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)] === [2023-08-29 02:10:39,921 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:10:39,922 INFO L85 PathProgramCache]: Analyzing trace with hash -305976718, now seen corresponding path program 1 times [2023-08-29 02:10:39,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:10:39,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140799679] [2023-08-29 02:10:39,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:10:39,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:10:39,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:10:40,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:10:40,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:10:40,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140799679] [2023-08-29 02:10:40,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140799679] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:10:40,324 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:10:40,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 02:10:40,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803137781] [2023-08-29 02:10:40,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:10:40,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 02:10:40,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:10:40,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 02:10:40,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-08-29 02:10:40,766 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 137 out of 349 [2023-08-29 02:10:40,768 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 203 transitions, 1299 flow. Second operand has 10 states, 10 states have (on average 138.2) internal successors, (1382), 10 states have internal predecessors, (1382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:10:40,768 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:10:40,768 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 137 of 349 [2023-08-29 02:10:40,768 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:10:42,022 INFO L130 PetriNetUnfolder]: 774/2149 cut-off events. [2023-08-29 02:10:42,023 INFO L131 PetriNetUnfolder]: For 2159/2202 co-relation queries the response was YES. [2023-08-29 02:10:42,026 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6872 conditions, 2149 events. 774/2149 cut-off events. For 2159/2202 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 14300 event pairs, 111 based on Foata normal form. 19/2091 useless extension candidates. Maximal degree in co-relation 6853. Up to 622 conditions per place. [2023-08-29 02:10:42,033 INFO L137 encePairwiseOnDemand]: 317/349 looper letters, 261 selfloop transitions, 121 changer transitions 2/424 dead transitions. [2023-08-29 02:10:42,033 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 424 transitions, 3169 flow [2023-08-29 02:10:42,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-29 02:10:42,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-29 02:10:42,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1936 transitions. [2023-08-29 02:10:42,037 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46227316141356256 [2023-08-29 02:10:42,037 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1936 transitions. [2023-08-29 02:10:42,037 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1936 transitions. [2023-08-29 02:10:42,038 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:10:42,038 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1936 transitions. [2023-08-29 02:10:42,041 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 161.33333333333334) internal successors, (1936), 12 states have internal predecessors, (1936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:10:42,045 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 349.0) internal successors, (4537), 13 states have internal predecessors, (4537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:10:42,059 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 349.0) internal successors, (4537), 13 states have internal predecessors, (4537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:10:42,059 INFO L175 Difference]: Start difference. First operand has 104 places, 203 transitions, 1299 flow. Second operand 12 states and 1936 transitions. [2023-08-29 02:10:42,059 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 424 transitions, 3169 flow [2023-08-29 02:10:42,067 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 424 transitions, 3157 flow, removed 6 selfloop flow, removed 0 redundant places. [2023-08-29 02:10:42,072 INFO L231 Difference]: Finished difference. Result has 125 places, 258 transitions, 2206 flow [2023-08-29 02:10:42,072 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=349, 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} [2023-08-29 02:10:42,074 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 48 predicate places. [2023-08-29 02:10:42,074 INFO L495 AbstractCegarLoop]: Abstraction has has 125 places, 258 transitions, 2206 flow [2023-08-29 02:10:42,075 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 138.2) internal successors, (1382), 10 states have internal predecessors, (1382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:10:42,075 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:10:42,075 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:10:42,076 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-29 02:10:42,076 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)] === [2023-08-29 02:10:42,076 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:10:42,076 INFO L85 PathProgramCache]: Analyzing trace with hash -126679612, now seen corresponding path program 2 times [2023-08-29 02:10:42,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:10:42,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446323262] [2023-08-29 02:10:42,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:10:42,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:10:42,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:10:42,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:10:42,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:10:42,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446323262] [2023-08-29 02:10:42,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1446323262] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:10:42,401 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:10:42,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 02:10:42,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197646025] [2023-08-29 02:10:42,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:10:42,401 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 02:10:42,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:10:42,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 02:10:42,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-08-29 02:10:43,149 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 137 out of 349 [2023-08-29 02:10:43,150 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 258 transitions, 2206 flow. Second operand has 10 states, 10 states have (on average 138.2) internal successors, (1382), 10 states have internal predecessors, (1382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:10:43,150 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:10:43,150 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 137 of 349 [2023-08-29 02:10:43,150 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:10:45,090 INFO L130 PetriNetUnfolder]: 866/2397 cut-off events. [2023-08-29 02:10:45,090 INFO L131 PetriNetUnfolder]: For 4860/4900 co-relation queries the response was YES. [2023-08-29 02:10:45,095 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8953 conditions, 2397 events. 866/2397 cut-off events. For 4860/4900 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 16281 event pairs, 113 based on Foata normal form. 36/2325 useless extension candidates. Maximal degree in co-relation 8924. Up to 809 conditions per place. [2023-08-29 02:10:45,102 INFO L137 encePairwiseOnDemand]: 328/349 looper letters, 372 selfloop transitions, 95 changer transitions 3/510 dead transitions. [2023-08-29 02:10:45,102 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 510 transitions, 4681 flow [2023-08-29 02:10:45,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-08-29 02:10:45,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-08-29 02:10:45,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2743 transitions. [2023-08-29 02:10:45,108 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43664438077045525 [2023-08-29 02:10:45,108 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2743 transitions. [2023-08-29 02:10:45,108 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2743 transitions. [2023-08-29 02:10:45,109 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:10:45,109 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2743 transitions. [2023-08-29 02:10:45,114 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 152.38888888888889) internal successors, (2743), 18 states have internal predecessors, (2743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:10:45,119 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 349.0) internal successors, (6631), 19 states have internal predecessors, (6631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:10:45,120 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 349.0) internal successors, (6631), 19 states have internal predecessors, (6631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:10:45,121 INFO L175 Difference]: Start difference. First operand has 125 places, 258 transitions, 2206 flow. Second operand 18 states and 2743 transitions. [2023-08-29 02:10:45,121 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 510 transitions, 4681 flow [2023-08-29 02:10:45,142 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 510 transitions, 4669 flow, removed 6 selfloop flow, removed 0 redundant places. [2023-08-29 02:10:45,147 INFO L231 Difference]: Finished difference. Result has 148 places, 301 transitions, 2901 flow [2023-08-29 02:10:45,147 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=349, PETRI_DIFFERENCE_MINUEND_FLOW=2194, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=258, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=53, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=173, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=2901, PETRI_PLACES=148, PETRI_TRANSITIONS=301} [2023-08-29 02:10:45,148 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 71 predicate places. [2023-08-29 02:10:45,148 INFO L495 AbstractCegarLoop]: Abstraction has has 148 places, 301 transitions, 2901 flow [2023-08-29 02:10:45,148 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 138.2) internal successors, (1382), 10 states have internal predecessors, (1382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:10:45,148 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:10:45,148 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:10:45,149 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-29 02:10:45,149 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)] === [2023-08-29 02:10:45,149 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:10:45,149 INFO L85 PathProgramCache]: Analyzing trace with hash -87906598, now seen corresponding path program 3 times [2023-08-29 02:10:45,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:10:45,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330500950] [2023-08-29 02:10:45,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:10:45,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:10:45,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:10:45,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:10:45,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:10:45,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330500950] [2023-08-29 02:10:45,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1330500950] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:10:45,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:10:45,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 02:10:45,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606798055] [2023-08-29 02:10:45,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:10:45,486 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 02:10:45,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:10:45,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 02:10:45,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-08-29 02:10:45,981 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 137 out of 349 [2023-08-29 02:10:45,982 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 301 transitions, 2901 flow. Second operand has 10 states, 10 states have (on average 138.2) internal successors, (1382), 10 states have internal predecessors, (1382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:10:45,982 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:10:45,983 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 137 of 349 [2023-08-29 02:10:45,983 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:10:47,663 INFO L130 PetriNetUnfolder]: 1063/2950 cut-off events. [2023-08-29 02:10:47,664 INFO L131 PetriNetUnfolder]: For 9542/9603 co-relation queries the response was YES. [2023-08-29 02:10:47,670 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12303 conditions, 2950 events. 1063/2950 cut-off events. For 9542/9603 co-relation queries the response was YES. Maximal size of possible extension queue 98. Compared 21372 event pairs, 121 based on Foata normal form. 25/2864 useless extension candidates. Maximal degree in co-relation 12268. Up to 824 conditions per place. [2023-08-29 02:10:47,681 INFO L137 encePairwiseOnDemand]: 317/349 looper letters, 321 selfloop transitions, 162 changer transitions 2/525 dead transitions. [2023-08-29 02:10:47,681 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 525 transitions, 5432 flow [2023-08-29 02:10:47,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-08-29 02:10:47,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-08-29 02:10:47,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2078 transitions. [2023-08-29 02:10:47,686 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45801190213797666 [2023-08-29 02:10:47,686 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2078 transitions. [2023-08-29 02:10:47,686 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2078 transitions. [2023-08-29 02:10:47,687 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:10:47,687 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2078 transitions. [2023-08-29 02:10:47,690 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 159.84615384615384) internal successors, (2078), 13 states have internal predecessors, (2078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:10:47,694 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 349.0) internal successors, (4886), 14 states have internal predecessors, (4886), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:10:47,694 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 349.0) internal successors, (4886), 14 states have internal predecessors, (4886), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:10:47,695 INFO L175 Difference]: Start difference. First operand has 148 places, 301 transitions, 2901 flow. Second operand 13 states and 2078 transitions. [2023-08-29 02:10:47,695 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 160 places, 525 transitions, 5432 flow [2023-08-29 02:10:47,730 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 159 places, 525 transitions, 5420 flow, removed 3 selfloop flow, removed 1 redundant places. [2023-08-29 02:10:47,737 INFO L231 Difference]: Finished difference. Result has 169 places, 354 transitions, 4241 flow [2023-08-29 02:10:47,737 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=349, PETRI_DIFFERENCE_MINUEND_FLOW=2891, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=301, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=111, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=156, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=4241, PETRI_PLACES=169, PETRI_TRANSITIONS=354} [2023-08-29 02:10:47,739 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 92 predicate places. [2023-08-29 02:10:47,739 INFO L495 AbstractCegarLoop]: Abstraction has has 169 places, 354 transitions, 4241 flow [2023-08-29 02:10:47,739 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 138.2) internal successors, (1382), 10 states have internal predecessors, (1382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:10:47,739 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:10:47,740 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:10:47,740 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-29 02:10:47,740 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)] === [2023-08-29 02:10:47,743 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:10:47,743 INFO L85 PathProgramCache]: Analyzing trace with hash -220077052, now seen corresponding path program 4 times [2023-08-29 02:10:47,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:10:47,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609462385] [2023-08-29 02:10:47,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:10:47,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:10:47,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:10:48,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:10:48,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:10:48,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609462385] [2023-08-29 02:10:48,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1609462385] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:10:48,038 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:10:48,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 02:10:48,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883416183] [2023-08-29 02:10:48,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:10:48,039 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 02:10:48,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:10:48,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 02:10:48,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-08-29 02:10:48,532 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 137 out of 349 [2023-08-29 02:10:48,533 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 169 places, 354 transitions, 4241 flow. Second operand has 10 states, 10 states have (on average 138.2) internal successors, (1382), 10 states have internal predecessors, (1382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:10:48,533 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:10:48,533 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 137 of 349 [2023-08-29 02:10:48,533 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:10:50,504 INFO L130 PetriNetUnfolder]: 1585/4362 cut-off events. [2023-08-29 02:10:50,504 INFO L131 PetriNetUnfolder]: For 21141/21268 co-relation queries the response was YES. [2023-08-29 02:10:50,516 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20077 conditions, 4362 events. 1585/4362 cut-off events. For 21141/21268 co-relation queries the response was YES. Maximal size of possible extension queue 158. Compared 35312 event pairs, 136 based on Foata normal form. 64/4241 useless extension candidates. Maximal degree in co-relation 20032. Up to 1009 conditions per place. [2023-08-29 02:10:50,530 INFO L137 encePairwiseOnDemand]: 321/349 looper letters, 449 selfloop transitions, 262 changer transitions 3/754 dead transitions. [2023-08-29 02:10:50,530 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 184 places, 754 transitions, 9509 flow [2023-08-29 02:10:50,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-08-29 02:10:50,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-08-29 02:10:50,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2510 transitions. [2023-08-29 02:10:50,535 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44949856733524357 [2023-08-29 02:10:50,535 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 2510 transitions. [2023-08-29 02:10:50,535 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 2510 transitions. [2023-08-29 02:10:50,537 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:10:50,537 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 2510 transitions. [2023-08-29 02:10:50,540 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 156.875) internal successors, (2510), 16 states have internal predecessors, (2510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:10:50,554 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 349.0) internal successors, (5933), 17 states have internal predecessors, (5933), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:10:50,555 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 349.0) internal successors, (5933), 17 states have internal predecessors, (5933), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:10:50,555 INFO L175 Difference]: Start difference. First operand has 169 places, 354 transitions, 4241 flow. Second operand 16 states and 2510 transitions. [2023-08-29 02:10:50,555 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 184 places, 754 transitions, 9509 flow [2023-08-29 02:10:50,671 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 183 places, 754 transitions, 9465 flow, removed 14 selfloop flow, removed 1 redundant places. [2023-08-29 02:10:50,678 INFO L231 Difference]: Finished difference. Result has 193 places, 486 transitions, 7269 flow [2023-08-29 02:10:50,679 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=349, PETRI_DIFFERENCE_MINUEND_FLOW=4217, PETRI_DIFFERENCE_MINUEND_PLACES=168, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=354, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=143, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=150, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=7269, PETRI_PLACES=193, PETRI_TRANSITIONS=486} [2023-08-29 02:10:50,680 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 116 predicate places. [2023-08-29 02:10:50,681 INFO L495 AbstractCegarLoop]: Abstraction has has 193 places, 486 transitions, 7269 flow [2023-08-29 02:10:50,681 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 138.2) internal successors, (1382), 10 states have internal predecessors, (1382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:10:50,681 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:10:50,681 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:10:50,681 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-29 02:10:50,683 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)] === [2023-08-29 02:10:50,683 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:10:50,683 INFO L85 PathProgramCache]: Analyzing trace with hash -994184910, now seen corresponding path program 5 times [2023-08-29 02:10:50,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:10:50,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513987618] [2023-08-29 02:10:50,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:10:50,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:10:50,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:10:50,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:10:50,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:10:50,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513987618] [2023-08-29 02:10:50,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513987618] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:10:50,991 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:10:50,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 02:10:50,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111791875] [2023-08-29 02:10:50,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:10:50,993 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 02:10:50,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:10:50,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 02:10:50,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-08-29 02:10:51,525 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 137 out of 349 [2023-08-29 02:10:51,526 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 193 places, 486 transitions, 7269 flow. Second operand has 10 states, 10 states have (on average 138.2) internal successors, (1382), 10 states have internal predecessors, (1382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:10:51,527 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:10:51,527 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 137 of 349 [2023-08-29 02:10:51,527 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:10:54,058 INFO L130 PetriNetUnfolder]: 1966/5382 cut-off events. [2023-08-29 02:10:54,058 INFO L131 PetriNetUnfolder]: For 40543/40783 co-relation queries the response was YES. [2023-08-29 02:10:54,075 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27447 conditions, 5382 events. 1966/5382 cut-off events. For 40543/40783 co-relation queries the response was YES. Maximal size of possible extension queue 202. Compared 45887 event pairs, 337 based on Foata normal form. 126/5286 useless extension candidates. Maximal degree in co-relation 27392. Up to 1276 conditions per place. [2023-08-29 02:10:54,089 INFO L137 encePairwiseOnDemand]: 317/349 looper letters, 439 selfloop transitions, 315 changer transitions 2/796 dead transitions. [2023-08-29 02:10:54,089 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 206 places, 796 transitions, 12046 flow [2023-08-29 02:10:54,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-29 02:10:54,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-29 02:10:54,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2218 transitions. [2023-08-29 02:10:54,093 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4539500613999181 [2023-08-29 02:10:54,093 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2218 transitions. [2023-08-29 02:10:54,093 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2218 transitions. [2023-08-29 02:10:54,094 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:10:54,094 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2218 transitions. [2023-08-29 02:10:54,096 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 158.42857142857142) internal successors, (2218), 14 states have internal predecessors, (2218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:10:54,100 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 349.0) internal successors, (5235), 15 states have internal predecessors, (5235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:10:54,100 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 349.0) internal successors, (5235), 15 states have internal predecessors, (5235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:10:54,100 INFO L175 Difference]: Start difference. First operand has 193 places, 486 transitions, 7269 flow. Second operand 14 states and 2218 transitions. [2023-08-29 02:10:54,101 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 206 places, 796 transitions, 12046 flow [2023-08-29 02:10:54,358 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 203 places, 796 transitions, 11962 flow, removed 35 selfloop flow, removed 3 redundant places. [2023-08-29 02:10:54,366 INFO L231 Difference]: Finished difference. Result has 215 places, 586 transitions, 10282 flow [2023-08-29 02:10:54,367 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=349, PETRI_DIFFERENCE_MINUEND_FLOW=7197, PETRI_DIFFERENCE_MINUEND_PLACES=190, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=486, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=220, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=208, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=10282, PETRI_PLACES=215, PETRI_TRANSITIONS=586} [2023-08-29 02:10:54,367 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 138 predicate places. [2023-08-29 02:10:54,367 INFO L495 AbstractCegarLoop]: Abstraction has has 215 places, 586 transitions, 10282 flow [2023-08-29 02:10:54,368 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 138.2) internal successors, (1382), 10 states have internal predecessors, (1382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:10:54,368 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:10:54,368 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:10:54,368 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-29 02:10:54,368 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)] === [2023-08-29 02:10:54,369 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:10:54,369 INFO L85 PathProgramCache]: Analyzing trace with hash -537716208, now seen corresponding path program 6 times [2023-08-29 02:10:54,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:10:54,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890087580] [2023-08-29 02:10:54,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:10:54,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:10:54,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:10:54,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:10:54,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:10:54,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890087580] [2023-08-29 02:10:54,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1890087580] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:10:54,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:10:54,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 02:10:54,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087032454] [2023-08-29 02:10:54,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:10:54,691 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 02:10:54,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:10:54,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 02:10:54,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-08-29 02:10:55,205 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 137 out of 349 [2023-08-29 02:10:55,206 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 215 places, 586 transitions, 10282 flow. Second operand has 10 states, 10 states have (on average 138.2) internal successors, (1382), 10 states have internal predecessors, (1382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:10:55,206 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:10:55,206 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 137 of 349 [2023-08-29 02:10:55,206 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:10:57,795 INFO L130 PetriNetUnfolder]: 2174/5927 cut-off events. [2023-08-29 02:10:57,795 INFO L131 PetriNetUnfolder]: For 60598/60869 co-relation queries the response was YES. [2023-08-29 02:10:57,815 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32936 conditions, 5927 events. 2174/5927 cut-off events. For 60598/60869 co-relation queries the response was YES. Maximal size of possible extension queue 230. Compared 51892 event pairs, 242 based on Foata normal form. 159/5846 useless extension candidates. Maximal degree in co-relation 32870. Up to 1661 conditions per place. [2023-08-29 02:10:57,829 INFO L137 encePairwiseOnDemand]: 321/349 looper letters, 453 selfloop transitions, 400 changer transitions 3/896 dead transitions. [2023-08-29 02:10:57,829 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 232 places, 896 transitions, 15080 flow [2023-08-29 02:10:57,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-08-29 02:10:57,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-08-29 02:10:57,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2811 transitions. [2023-08-29 02:10:57,832 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.447468958930277 [2023-08-29 02:10:57,832 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2811 transitions. [2023-08-29 02:10:57,832 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2811 transitions. [2023-08-29 02:10:57,832 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:10:57,833 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2811 transitions. [2023-08-29 02:10:57,835 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 156.16666666666666) internal successors, (2811), 18 states have internal predecessors, (2811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:10:57,839 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 349.0) internal successors, (6631), 19 states have internal predecessors, (6631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:10:57,840 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 349.0) internal successors, (6631), 19 states have internal predecessors, (6631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:10:57,840 INFO L175 Difference]: Start difference. First operand has 215 places, 586 transitions, 10282 flow. Second operand 18 states and 2811 transitions. [2023-08-29 02:10:57,840 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 232 places, 896 transitions, 15080 flow [2023-08-29 02:10:58,211 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 232 places, 896 transitions, 15026 flow, removed 27 selfloop flow, removed 0 redundant places. [2023-08-29 02:10:58,221 INFO L231 Difference]: Finished difference. Result has 244 places, 666 transitions, 13503 flow [2023-08-29 02:10:58,222 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=349, PETRI_DIFFERENCE_MINUEND_FLOW=10240, PETRI_DIFFERENCE_MINUEND_PLACES=215, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=586, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=321, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=208, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=13503, PETRI_PLACES=244, PETRI_TRANSITIONS=666} [2023-08-29 02:10:58,222 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 167 predicate places. [2023-08-29 02:10:58,222 INFO L495 AbstractCegarLoop]: Abstraction has has 244 places, 666 transitions, 13503 flow [2023-08-29 02:10:58,223 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 138.2) internal successors, (1382), 10 states have internal predecessors, (1382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:10:58,223 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:10:58,223 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:10:58,223 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-29 02:10:58,223 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)] === [2023-08-29 02:10:58,223 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:10:58,223 INFO L85 PathProgramCache]: Analyzing trace with hash 67900634, now seen corresponding path program 7 times [2023-08-29 02:10:58,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:10:58,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928560033] [2023-08-29 02:10:58,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:10:58,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:10:58,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:10:58,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:10:58,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:10:58,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928560033] [2023-08-29 02:10:58,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [928560033] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:10:58,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:10:58,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 02:10:58,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949074190] [2023-08-29 02:10:58,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:10:58,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 02:10:58,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:10:58,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 02:10:58,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-08-29 02:10:59,164 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 137 out of 349 [2023-08-29 02:10:59,165 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 244 places, 666 transitions, 13503 flow. Second operand has 10 states, 10 states have (on average 138.2) internal successors, (1382), 10 states have internal predecessors, (1382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:10:59,165 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:10:59,165 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 137 of 349 [2023-08-29 02:10:59,165 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:11:01,982 INFO L130 PetriNetUnfolder]: 2505/6881 cut-off events. [2023-08-29 02:11:01,982 INFO L131 PetriNetUnfolder]: For 94234/94677 co-relation queries the response was YES. [2023-08-29 02:11:02,008 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41336 conditions, 6881 events. 2505/6881 cut-off events. For 94234/94677 co-relation queries the response was YES. Maximal size of possible extension queue 268. Compared 62640 event pairs, 366 based on Foata normal form. 272/6862 useless extension candidates. Maximal degree in co-relation 41257. Up to 1737 conditions per place. [2023-08-29 02:11:02,025 INFO L137 encePairwiseOnDemand]: 317/349 looper letters, 545 selfloop transitions, 403 changer transitions 2/990 dead transitions. [2023-08-29 02:11:02,025 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 257 places, 990 transitions, 19781 flow [2023-08-29 02:11:02,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-29 02:11:02,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-29 02:11:02,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2205 transitions. [2023-08-29 02:11:02,028 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4512893982808023 [2023-08-29 02:11:02,028 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2205 transitions. [2023-08-29 02:11:02,028 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2205 transitions. [2023-08-29 02:11:02,028 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:11:02,028 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2205 transitions. [2023-08-29 02:11:02,030 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 157.5) internal successors, (2205), 14 states have internal predecessors, (2205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:11:02,033 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 349.0) internal successors, (5235), 15 states have internal predecessors, (5235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:11:02,034 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 349.0) internal successors, (5235), 15 states have internal predecessors, (5235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:11:02,034 INFO L175 Difference]: Start difference. First operand has 244 places, 666 transitions, 13503 flow. Second operand 14 states and 2205 transitions. [2023-08-29 02:11:02,034 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 257 places, 990 transitions, 19781 flow [2023-08-29 02:11:02,673 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 252 places, 990 transitions, 19709 flow, removed 25 selfloop flow, removed 5 redundant places. [2023-08-29 02:11:02,686 INFO L231 Difference]: Finished difference. Result has 264 places, 760 transitions, 17397 flow [2023-08-29 02:11:02,686 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=349, PETRI_DIFFERENCE_MINUEND_FLOW=13450, PETRI_DIFFERENCE_MINUEND_PLACES=239, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=666, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=313, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=292, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=17397, PETRI_PLACES=264, PETRI_TRANSITIONS=760} [2023-08-29 02:11:02,686 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 187 predicate places. [2023-08-29 02:11:02,686 INFO L495 AbstractCegarLoop]: Abstraction has has 264 places, 760 transitions, 17397 flow [2023-08-29 02:11:02,687 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 138.2) internal successors, (1382), 10 states have internal predecessors, (1382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:11:02,687 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:11:02,687 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:11:02,687 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-29 02:11:02,687 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)] === [2023-08-29 02:11:02,687 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:11:02,687 INFO L85 PathProgramCache]: Analyzing trace with hash -1300001976, now seen corresponding path program 8 times [2023-08-29 02:11:02,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:11:02,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715909173] [2023-08-29 02:11:02,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:11:02,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:11:02,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:11:03,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:11:03,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:11:03,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715909173] [2023-08-29 02:11:03,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [715909173] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:11:03,003 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:11:03,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 02:11:03,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814890378] [2023-08-29 02:11:03,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:11:03,004 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 02:11:03,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:11:03,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 02:11:03,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-08-29 02:11:03,722 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 137 out of 349 [2023-08-29 02:11:03,723 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 264 places, 760 transitions, 17397 flow. Second operand has 10 states, 10 states have (on average 138.2) internal successors, (1382), 10 states have internal predecessors, (1382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:11:03,723 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:11:03,723 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 137 of 349 [2023-08-29 02:11:03,723 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:11:06,832 INFO L130 PetriNetUnfolder]: 2663/7313 cut-off events. [2023-08-29 02:11:06,832 INFO L131 PetriNetUnfolder]: For 125016/125463 co-relation queries the response was YES. [2023-08-29 02:11:06,966 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46742 conditions, 7313 events. 2663/7313 cut-off events. For 125016/125463 co-relation queries the response was YES. Maximal size of possible extension queue 296. Compared 67785 event pairs, 295 based on Foata normal form. 269/7268 useless extension candidates. Maximal degree in co-relation 46652. Up to 1787 conditions per place. [2023-08-29 02:11:06,987 INFO L137 encePairwiseOnDemand]: 321/349 looper letters, 543 selfloop transitions, 477 changer transitions 3/1063 dead transitions. [2023-08-29 02:11:06,987 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 280 places, 1063 transitions, 22911 flow [2023-08-29 02:11:06,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-08-29 02:11:06,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-08-29 02:11:06,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2660 transitions. [2023-08-29 02:11:06,990 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4483397943704702 [2023-08-29 02:11:06,991 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2660 transitions. [2023-08-29 02:11:06,991 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2660 transitions. [2023-08-29 02:11:06,991 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:11:06,991 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2660 transitions. [2023-08-29 02:11:06,993 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 156.47058823529412) internal successors, (2660), 17 states have internal predecessors, (2660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:11:06,997 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 349.0) internal successors, (6282), 18 states have internal predecessors, (6282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:11:06,997 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 349.0) internal successors, (6282), 18 states have internal predecessors, (6282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:11:06,997 INFO L175 Difference]: Start difference. First operand has 264 places, 760 transitions, 17397 flow. Second operand 17 states and 2660 transitions. [2023-08-29 02:11:06,998 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 280 places, 1063 transitions, 22911 flow [2023-08-29 02:11:07,966 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 280 places, 1063 transitions, 22829 flow, removed 41 selfloop flow, removed 0 redundant places. [2023-08-29 02:11:07,981 INFO L231 Difference]: Finished difference. Result has 291 places, 825 transitions, 20954 flow [2023-08-29 02:11:07,981 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=349, PETRI_DIFFERENCE_MINUEND_FLOW=17325, PETRI_DIFFERENCE_MINUEND_PLACES=264, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=760, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=412, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=295, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=20954, PETRI_PLACES=291, PETRI_TRANSITIONS=825} [2023-08-29 02:11:07,982 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 214 predicate places. [2023-08-29 02:11:07,982 INFO L495 AbstractCegarLoop]: Abstraction has has 291 places, 825 transitions, 20954 flow [2023-08-29 02:11:07,982 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 138.2) internal successors, (1382), 10 states have internal predecessors, (1382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:11:07,982 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:11:07,982 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:11:07,982 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-29 02:11:07,982 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)] === [2023-08-29 02:11:07,982 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:11:07,983 INFO L85 PathProgramCache]: Analyzing trace with hash -1012024290, now seen corresponding path program 9 times [2023-08-29 02:11:07,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:11:07,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32472188] [2023-08-29 02:11:07,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:11:07,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:11:08,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:11:08,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:11:08,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:11:08,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32472188] [2023-08-29 02:11:08,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32472188] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:11:08,255 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:11:08,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 02:11:08,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932426304] [2023-08-29 02:11:08,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:11:08,255 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 02:11:08,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:11:08,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 02:11:08,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-08-29 02:11:08,840 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 137 out of 349 [2023-08-29 02:11:08,849 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 291 places, 825 transitions, 20954 flow. Second operand has 10 states, 10 states have (on average 138.2) internal successors, (1382), 10 states have internal predecessors, (1382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:11:08,849 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:11:08,849 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 137 of 349 [2023-08-29 02:11:08,849 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:11:12,637 INFO L130 PetriNetUnfolder]: 2876/7946 cut-off events. [2023-08-29 02:11:12,637 INFO L131 PetriNetUnfolder]: For 169333/169866 co-relation queries the response was YES. [2023-08-29 02:11:12,687 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53884 conditions, 7946 events. 2876/7946 cut-off events. For 169333/169866 co-relation queries the response was YES. Maximal size of possible extension queue 322. Compared 75190 event pairs, 323 based on Foata normal form. 331/7933 useless extension candidates. Maximal degree in co-relation 53782. Up to 2176 conditions per place. [2023-08-29 02:11:12,712 INFO L137 encePairwiseOnDemand]: 318/349 looper letters, 494 selfloop transitions, 560 changer transitions 2/1096 dead transitions. [2023-08-29 02:11:12,712 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 304 places, 1096 transitions, 27092 flow [2023-08-29 02:11:12,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-29 02:11:12,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-29 02:11:12,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2191 transitions. [2023-08-29 02:11:12,714 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4484240687679083 [2023-08-29 02:11:12,714 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2191 transitions. [2023-08-29 02:11:12,715 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2191 transitions. [2023-08-29 02:11:12,715 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:11:12,715 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2191 transitions. [2023-08-29 02:11:12,717 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 156.5) internal successors, (2191), 14 states have internal predecessors, (2191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:11:12,720 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 349.0) internal successors, (5235), 15 states have internal predecessors, (5235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:11:12,720 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 349.0) internal successors, (5235), 15 states have internal predecessors, (5235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:11:12,720 INFO L175 Difference]: Start difference. First operand has 291 places, 825 transitions, 20954 flow. Second operand 14 states and 2191 transitions. [2023-08-29 02:11:12,720 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 304 places, 1096 transitions, 27092 flow [2023-08-29 02:11:13,969 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 300 places, 1096 transitions, 27018 flow, removed 28 selfloop flow, removed 4 redundant places. [2023-08-29 02:11:14,092 INFO L231 Difference]: Finished difference. Result has 312 places, 894 transitions, 25296 flow [2023-08-29 02:11:14,093 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=349, PETRI_DIFFERENCE_MINUEND_FLOW=20888, PETRI_DIFFERENCE_MINUEND_PLACES=287, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=825, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=491, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=281, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=25296, PETRI_PLACES=312, PETRI_TRANSITIONS=894} [2023-08-29 02:11:14,093 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 235 predicate places. [2023-08-29 02:11:14,093 INFO L495 AbstractCegarLoop]: Abstraction has has 312 places, 894 transitions, 25296 flow [2023-08-29 02:11:14,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 138.2) internal successors, (1382), 10 states have internal predecessors, (1382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:11:14,094 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:11:14,094 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:11:14,094 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-29 02:11:14,094 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)] === [2023-08-29 02:11:14,094 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:11:14,094 INFO L85 PathProgramCache]: Analyzing trace with hash -1298277360, now seen corresponding path program 10 times [2023-08-29 02:11:14,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:11:14,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379804703] [2023-08-29 02:11:14,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:11:14,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:11:14,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:11:14,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:11:14,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:11:14,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379804703] [2023-08-29 02:11:14,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [379804703] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:11:14,376 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:11:14,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 02:11:14,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144967104] [2023-08-29 02:11:14,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:11:14,376 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 02:11:14,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:11:14,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 02:11:14,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-08-29 02:11:14,876 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 137 out of 349 [2023-08-29 02:11:14,877 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 312 places, 894 transitions, 25296 flow. Second operand has 10 states, 10 states have (on average 138.2) internal successors, (1382), 10 states have internal predecessors, (1382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:11:14,877 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:11:14,877 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 137 of 349 [2023-08-29 02:11:14,877 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:11:18,533 INFO L130 PetriNetUnfolder]: 3040/8411 cut-off events. [2023-08-29 02:11:18,533 INFO L131 PetriNetUnfolder]: For 221956/222507 co-relation queries the response was YES. [2023-08-29 02:11:18,583 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60589 conditions, 8411 events. 3040/8411 cut-off events. For 221956/222507 co-relation queries the response was YES. Maximal size of possible extension queue 348. Compared 80808 event pairs, 359 based on Foata normal form. 337/8382 useless extension candidates. Maximal degree in co-relation 60476. Up to 2462 conditions per place. [2023-08-29 02:11:18,607 INFO L137 encePairwiseOnDemand]: 320/349 looper letters, 454 selfloop transitions, 595 changer transitions 2/1091 dead transitions. [2023-08-29 02:11:18,607 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 324 places, 1091 transitions, 30311 flow [2023-08-29 02:11:18,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-08-29 02:11:18,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-08-29 02:11:18,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2015 transitions. [2023-08-29 02:11:18,609 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44412607449856734 [2023-08-29 02:11:18,609 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2015 transitions. [2023-08-29 02:11:18,609 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2015 transitions. [2023-08-29 02:11:18,609 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:11:18,609 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2015 transitions. [2023-08-29 02:11:18,611 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 155.0) internal successors, (2015), 13 states have internal predecessors, (2015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:11:18,613 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 349.0) internal successors, (4886), 14 states have internal predecessors, (4886), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:11:18,613 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 349.0) internal successors, (4886), 14 states have internal predecessors, (4886), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:11:18,613 INFO L175 Difference]: Start difference. First operand has 312 places, 894 transitions, 25296 flow. Second operand 13 states and 2015 transitions. [2023-08-29 02:11:18,613 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 324 places, 1091 transitions, 30311 flow [2023-08-29 02:11:20,296 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 324 places, 1091 transitions, 30137 flow, removed 87 selfloop flow, removed 0 redundant places. [2023-08-29 02:11:20,314 INFO L231 Difference]: Finished difference. Result has 334 places, 940 transitions, 29146 flow [2023-08-29 02:11:20,315 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=349, PETRI_DIFFERENCE_MINUEND_FLOW=25148, PETRI_DIFFERENCE_MINUEND_PLACES=312, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=894, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=549, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=312, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=29146, PETRI_PLACES=334, PETRI_TRANSITIONS=940} [2023-08-29 02:11:20,315 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 257 predicate places. [2023-08-29 02:11:20,315 INFO L495 AbstractCegarLoop]: Abstraction has has 334 places, 940 transitions, 29146 flow [2023-08-29 02:11:20,315 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 138.2) internal successors, (1382), 10 states have internal predecessors, (1382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:11:20,316 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:11:20,316 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:11:20,316 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-08-29 02:11:20,316 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)] === [2023-08-29 02:11:20,316 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:11:20,316 INFO L85 PathProgramCache]: Analyzing trace with hash -79603558, now seen corresponding path program 11 times [2023-08-29 02:11:20,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:11:20,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179239456] [2023-08-29 02:11:20,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:11:20,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:11:20,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:11:20,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:11:20,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:11:20,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179239456] [2023-08-29 02:11:20,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [179239456] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:11:20,600 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:11:20,600 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 02:11:20,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363665448] [2023-08-29 02:11:20,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:11:20,602 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 02:11:20,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:11:20,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 02:11:20,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-08-29 02:11:21,289 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 137 out of 349 [2023-08-29 02:11:21,290 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 334 places, 940 transitions, 29146 flow. Second operand has 10 states, 10 states have (on average 138.2) internal successors, (1382), 10 states have internal predecessors, (1382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:11:21,290 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:11:21,290 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 137 of 349 [2023-08-29 02:11:21,290 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:11:25,814 INFO L130 PetriNetUnfolder]: 3233/8896 cut-off events. [2023-08-29 02:11:25,814 INFO L131 PetriNetUnfolder]: For 286842/287531 co-relation queries the response was YES. [2023-08-29 02:11:26,012 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67714 conditions, 8896 events. 3233/8896 cut-off events. For 286842/287531 co-relation queries the response was YES. Maximal size of possible extension queue 369. Compared 86577 event pairs, 506 based on Foata normal form. 434/8949 useless extension candidates. Maximal degree in co-relation 67591. Up to 2544 conditions per place. [2023-08-29 02:11:26,046 INFO L137 encePairwiseOnDemand]: 317/349 looper letters, 525 selfloop transitions, 629 changer transitions 2/1196 dead transitions. [2023-08-29 02:11:26,046 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 347 places, 1196 transitions, 34993 flow [2023-08-29 02:11:26,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-29 02:11:26,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-29 02:11:26,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2230 transitions. [2023-08-29 02:11:26,049 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4564060581252558 [2023-08-29 02:11:26,049 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2230 transitions. [2023-08-29 02:11:26,050 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2230 transitions. [2023-08-29 02:11:26,050 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:11:26,050 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2230 transitions. [2023-08-29 02:11:26,052 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) [2023-08-29 02:11:26,054 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 349.0) internal successors, (5235), 15 states have internal predecessors, (5235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:11:26,055 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 349.0) internal successors, (5235), 15 states have internal predecessors, (5235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:11:26,055 INFO L175 Difference]: Start difference. First operand has 334 places, 940 transitions, 29146 flow. Second operand 14 states and 2230 transitions. [2023-08-29 02:11:26,055 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 347 places, 1196 transitions, 34993 flow [2023-08-29 02:11:28,345 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 346 places, 1196 transitions, 34852 flow, removed 61 selfloop flow, removed 1 redundant places. [2023-08-29 02:11:28,366 INFO L231 Difference]: Finished difference. Result has 356 places, 994 transitions, 33448 flow [2023-08-29 02:11:28,366 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=349, PETRI_DIFFERENCE_MINUEND_FLOW=29007, PETRI_DIFFERENCE_MINUEND_PLACES=333, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=940, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=576, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=326, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=33448, PETRI_PLACES=356, PETRI_TRANSITIONS=994} [2023-08-29 02:11:28,367 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 279 predicate places. [2023-08-29 02:11:28,367 INFO L495 AbstractCegarLoop]: Abstraction has has 356 places, 994 transitions, 33448 flow [2023-08-29 02:11:28,367 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 138.2) internal successors, (1382), 10 states have internal predecessors, (1382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:11:28,367 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:11:28,367 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:11:28,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-08-29 02:11:28,367 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)] === [2023-08-29 02:11:28,367 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:11:28,367 INFO L85 PathProgramCache]: Analyzing trace with hash -1272134940, now seen corresponding path program 12 times [2023-08-29 02:11:28,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:11:28,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726882085] [2023-08-29 02:11:28,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:11:28,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:11:28,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:11:28,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:11:28,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:11:28,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726882085] [2023-08-29 02:11:28,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1726882085] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:11:28,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:11:28,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 02:11:28,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685551406] [2023-08-29 02:11:28,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:11:28,639 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 02:11:28,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:11:28,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 02:11:28,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-08-29 02:11:29,278 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 137 out of 349 [2023-08-29 02:11:29,279 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 356 places, 994 transitions, 33448 flow. Second operand has 10 states, 10 states have (on average 138.2) internal successors, (1382), 10 states have internal predecessors, (1382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:11:29,279 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:11:29,279 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 137 of 349 [2023-08-29 02:11:29,279 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:11:33,745 INFO L130 PetriNetUnfolder]: 3381/9378 cut-off events. [2023-08-29 02:11:33,745 INFO L131 PetriNetUnfolder]: For 351188/351980 co-relation queries the response was YES. [2023-08-29 02:11:33,808 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74740 conditions, 9378 events. 3381/9378 cut-off events. For 351188/351980 co-relation queries the response was YES. Maximal size of possible extension queue 403. Compared 92587 event pairs, 373 based on Foata normal form. 498/9457 useless extension candidates. Maximal degree in co-relation 74607. Up to 2817 conditions per place. [2023-08-29 02:11:33,837 INFO L137 encePairwiseOnDemand]: 318/349 looper letters, 488 selfloop transitions, 711 changer transitions 2/1241 dead transitions. [2023-08-29 02:11:33,837 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 369 places, 1241 transitions, 39685 flow [2023-08-29 02:11:33,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-29 02:11:33,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-29 02:11:33,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2202 transitions. [2023-08-29 02:11:33,839 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45067539909946785 [2023-08-29 02:11:33,839 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2202 transitions. [2023-08-29 02:11:33,839 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2202 transitions. [2023-08-29 02:11:33,839 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:11:33,839 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2202 transitions. [2023-08-29 02:11:33,841 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 157.28571428571428) internal successors, (2202), 14 states have internal predecessors, (2202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:11:33,843 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 349.0) internal successors, (5235), 15 states have internal predecessors, (5235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:11:33,843 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 349.0) internal successors, (5235), 15 states have internal predecessors, (5235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:11:33,843 INFO L175 Difference]: Start difference. First operand has 356 places, 994 transitions, 33448 flow. Second operand 14 states and 2202 transitions. [2023-08-29 02:11:33,843 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 369 places, 1241 transitions, 39685 flow [2023-08-29 02:11:37,005 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 368 places, 1241 transitions, 39529 flow, removed 56 selfloop flow, removed 1 redundant places. [2023-08-29 02:11:37,032 INFO L231 Difference]: Finished difference. Result has 380 places, 1053 transitions, 38441 flow [2023-08-29 02:11:37,033 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=349, PETRI_DIFFERENCE_MINUEND_FLOW=33312, PETRI_DIFFERENCE_MINUEND_PLACES=355, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=994, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=654, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=298, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=38441, PETRI_PLACES=380, PETRI_TRANSITIONS=1053} [2023-08-29 02:11:37,033 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 303 predicate places. [2023-08-29 02:11:37,033 INFO L495 AbstractCegarLoop]: Abstraction has has 380 places, 1053 transitions, 38441 flow [2023-08-29 02:11:37,033 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 138.2) internal successors, (1382), 10 states have internal predecessors, (1382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:11:37,034 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:11:37,034 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:11:37,034 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-08-29 02:11:37,034 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)] === [2023-08-29 02:11:37,034 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:11:37,034 INFO L85 PathProgramCache]: Analyzing trace with hash -1289974320, now seen corresponding path program 13 times [2023-08-29 02:11:37,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:11:37,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212288728] [2023-08-29 02:11:37,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:11:37,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:11:37,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:11:37,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:11:37,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:11:37,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212288728] [2023-08-29 02:11:37,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [212288728] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:11:37,374 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:11:37,374 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 02:11:37,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170622314] [2023-08-29 02:11:37,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:11:37,374 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 02:11:37,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:11:37,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 02:11:37,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-08-29 02:11:37,876 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 137 out of 349 [2023-08-29 02:11:37,877 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 380 places, 1053 transitions, 38441 flow. Second operand has 10 states, 10 states have (on average 138.2) internal successors, (1382), 10 states have internal predecessors, (1382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:11:37,877 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:11:37,877 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 137 of 349 [2023-08-29 02:11:37,877 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:11:42,963 INFO L130 PetriNetUnfolder]: 3529/9803 cut-off events. [2023-08-29 02:11:42,963 INFO L131 PetriNetUnfolder]: For 432222/432897 co-relation queries the response was YES. [2023-08-29 02:11:43,030 INFO L83 FinitePrefix]: Finished finitePrefix Result has 81971 conditions, 9803 events. 3529/9803 cut-off events. For 432222/432897 co-relation queries the response was YES. Maximal size of possible extension queue 421. Compared 97924 event pairs, 425 based on Foata normal form. 419/9787 useless extension candidates. Maximal degree in co-relation 81827. Up to 2682 conditions per place. [2023-08-29 02:11:43,060 INFO L137 encePairwiseOnDemand]: 319/349 looper letters, 530 selfloop transitions, 697 changer transitions 2/1269 dead transitions. [2023-08-29 02:11:43,060 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 393 places, 1269 transitions, 44574 flow [2023-08-29 02:11:43,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-29 02:11:43,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-29 02:11:43,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2170 transitions. [2023-08-29 02:11:43,062 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44412607449856734 [2023-08-29 02:11:43,062 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2170 transitions. [2023-08-29 02:11:43,062 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2170 transitions. [2023-08-29 02:11:43,063 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:11:43,063 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2170 transitions. [2023-08-29 02:11:43,064 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 155.0) internal successors, (2170), 14 states have internal predecessors, (2170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:11:43,067 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 349.0) internal successors, (5235), 15 states have internal predecessors, (5235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:11:43,067 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 349.0) internal successors, (5235), 15 states have internal predecessors, (5235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:11:43,067 INFO L175 Difference]: Start difference. First operand has 380 places, 1053 transitions, 38441 flow. Second operand 14 states and 2170 transitions. [2023-08-29 02:11:43,067 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 393 places, 1269 transitions, 44574 flow [2023-08-29 02:11:47,483 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 393 places, 1269 transitions, 44458 flow, removed 58 selfloop flow, removed 0 redundant places. [2023-08-29 02:11:47,509 INFO L231 Difference]: Finished difference. Result has 403 places, 1101 transitions, 43258 flow [2023-08-29 02:11:47,509 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=349, PETRI_DIFFERENCE_MINUEND_FLOW=38335, PETRI_DIFFERENCE_MINUEND_PLACES=380, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1053, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=649, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=370, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=43258, PETRI_PLACES=403, PETRI_TRANSITIONS=1101} [2023-08-29 02:11:47,510 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 326 predicate places. [2023-08-29 02:11:47,510 INFO L495 AbstractCegarLoop]: Abstraction has has 403 places, 1101 transitions, 43258 flow [2023-08-29 02:11:47,510 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 138.2) internal successors, (1382), 10 states have internal predecessors, (1382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:11:47,510 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:11:47,510 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:11:47,510 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-08-29 02:11:47,510 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)] === [2023-08-29 02:11:47,510 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:11:47,510 INFO L85 PathProgramCache]: Analyzing trace with hash -1141787270, now seen corresponding path program 1 times [2023-08-29 02:11:47,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:11:47,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579787648] [2023-08-29 02:11:47,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:11:47,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:11:47,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:11:47,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:11:47,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:11:47,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579787648] [2023-08-29 02:11:47,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [579787648] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:11:47,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:11:47,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 02:11:47,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687211457] [2023-08-29 02:11:47,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:11:47,698 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 02:11:47,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:11:47,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 02:11:47,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 02:11:47,856 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 349 [2023-08-29 02:11:47,856 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 403 places, 1101 transitions, 43258 flow. Second operand has 6 states, 6 states have (on average 145.0) internal successors, (870), 6 states have internal predecessors, (870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:11:47,856 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:11:47,856 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 349 [2023-08-29 02:11:47,856 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:11:54,392 INFO L130 PetriNetUnfolder]: 5690/14373 cut-off events. [2023-08-29 02:11:54,393 INFO L131 PetriNetUnfolder]: For 636400/636787 co-relation queries the response was YES. [2023-08-29 02:11:54,496 INFO L83 FinitePrefix]: Finished finitePrefix Result has 112543 conditions, 14373 events. 5690/14373 cut-off events. For 636400/636787 co-relation queries the response was YES. Maximal size of possible extension queue 521. Compared 141701 event pairs, 2238 based on Foata normal form. 27/13691 useless extension candidates. Maximal degree in co-relation 112389. Up to 10607 conditions per place. [2023-08-29 02:11:54,540 INFO L137 encePairwiseOnDemand]: 335/349 looper letters, 1018 selfloop transitions, 170 changer transitions 0/1376 dead transitions. [2023-08-29 02:11:54,540 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 408 places, 1376 transitions, 55140 flow [2023-08-29 02:11:54,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 02:11:54,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 02:11:54,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 963 transitions. [2023-08-29 02:11:54,542 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45988538681948427 [2023-08-29 02:11:54,542 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 963 transitions. [2023-08-29 02:11:54,542 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 963 transitions. [2023-08-29 02:11:54,542 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:11:54,542 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 963 transitions. [2023-08-29 02:11:54,543 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 160.5) internal successors, (963), 6 states have internal predecessors, (963), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:11:54,544 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 349.0) internal successors, (2443), 7 states have internal predecessors, (2443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:11:54,544 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 349.0) internal successors, (2443), 7 states have internal predecessors, (2443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:11:54,544 INFO L175 Difference]: Start difference. First operand has 403 places, 1101 transitions, 43258 flow. Second operand 6 states and 963 transitions. [2023-08-29 02:11:54,544 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 408 places, 1376 transitions, 55140 flow [2023-08-29 02:12:01,005 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 405 places, 1376 transitions, 54865 flow, removed 87 selfloop flow, removed 3 redundant places. [2023-08-29 02:12:01,033 INFO L231 Difference]: Finished difference. Result has 409 places, 1240 transitions, 46913 flow [2023-08-29 02:12:01,033 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=349, PETRI_DIFFERENCE_MINUEND_FLOW=43057, PETRI_DIFFERENCE_MINUEND_PLACES=400, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=55, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1003, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=46913, PETRI_PLACES=409, PETRI_TRANSITIONS=1240} [2023-08-29 02:12:01,034 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 332 predicate places. [2023-08-29 02:12:01,034 INFO L495 AbstractCegarLoop]: Abstraction has has 409 places, 1240 transitions, 46913 flow [2023-08-29 02:12:01,034 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 145.0) internal successors, (870), 6 states have internal predecessors, (870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:12:01,034 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:12:01,034 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:12:01,034 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-08-29 02:12:01,034 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)] === [2023-08-29 02:12:01,034 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:12:01,034 INFO L85 PathProgramCache]: Analyzing trace with hash 94692759, now seen corresponding path program 1 times [2023-08-29 02:12:01,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:12:01,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411039859] [2023-08-29 02:12:01,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:12:01,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:12:01,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:12:01,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:12:01,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:12:01,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411039859] [2023-08-29 02:12:01,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [411039859] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:12:01,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:12:01,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 02:12:01,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490093433] [2023-08-29 02:12:01,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:12:01,203 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 02:12:01,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:12:01,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 02:12:01,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 02:12:01,401 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 148 out of 349 [2023-08-29 02:12:01,402 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 409 places, 1240 transitions, 46913 flow. Second operand has 6 states, 6 states have (on average 149.83333333333334) internal successors, (899), 6 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:12:01,402 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:12:01,402 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 148 of 349 [2023-08-29 02:12:01,402 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:12:10,894 INFO L130 PetriNetUnfolder]: 8054/19175 cut-off events. [2023-08-29 02:12:10,894 INFO L131 PetriNetUnfolder]: For 942840/943794 co-relation queries the response was YES. [2023-08-29 02:12:11,047 INFO L83 FinitePrefix]: Finished finitePrefix Result has 160386 conditions, 19175 events. 8054/19175 cut-off events. For 942840/943794 co-relation queries the response was YES. Maximal size of possible extension queue 708. Compared 192233 event pairs, 848 based on Foata normal form. 127/18774 useless extension candidates. Maximal degree in co-relation 160228. Up to 10950 conditions per place. [2023-08-29 02:12:11,109 INFO L137 encePairwiseOnDemand]: 327/349 looper letters, 1129 selfloop transitions, 746 changer transitions 4/2194 dead transitions. [2023-08-29 02:12:11,109 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 414 places, 2194 transitions, 91535 flow [2023-08-29 02:12:11,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 02:12:11,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 02:12:11,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1044 transitions. [2023-08-29 02:12:11,111 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.498567335243553 [2023-08-29 02:12:11,111 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1044 transitions. [2023-08-29 02:12:11,111 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1044 transitions. [2023-08-29 02:12:11,111 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:12:11,111 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1044 transitions. [2023-08-29 02:12:11,112 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 174.0) internal successors, (1044), 6 states have internal predecessors, (1044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:12:11,113 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 349.0) internal successors, (2443), 7 states have internal predecessors, (2443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:12:11,113 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 349.0) internal successors, (2443), 7 states have internal predecessors, (2443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:12:11,113 INFO L175 Difference]: Start difference. First operand has 409 places, 1240 transitions, 46913 flow. Second operand 6 states and 1044 transitions. [2023-08-29 02:12:11,113 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 414 places, 2194 transitions, 91535 flow [2023-08-29 02:12:21,602 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 414 places, 2194 transitions, 91167 flow, removed 184 selfloop flow, removed 0 redundant places. [2023-08-29 02:12:21,645 INFO L231 Difference]: Finished difference. Result has 419 places, 1808 transitions, 75299 flow [2023-08-29 02:12:21,646 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=349, PETRI_DIFFERENCE_MINUEND_FLOW=46545, PETRI_DIFFERENCE_MINUEND_PLACES=409, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1240, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=276, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=932, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=75299, PETRI_PLACES=419, PETRI_TRANSITIONS=1808} [2023-08-29 02:12:21,646 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 342 predicate places. [2023-08-29 02:12:21,646 INFO L495 AbstractCegarLoop]: Abstraction has has 419 places, 1808 transitions, 75299 flow [2023-08-29 02:12:21,646 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 149.83333333333334) internal successors, (899), 6 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:12:21,646 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:12:21,646 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] [2023-08-29 02:12:21,646 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-08-29 02:12:21,646 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)] === [2023-08-29 02:12:21,647 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:12:21,647 INFO L85 PathProgramCache]: Analyzing trace with hash 29421568, now seen corresponding path program 1 times [2023-08-29 02:12:21,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:12:21,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861929609] [2023-08-29 02:12:21,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:12:21,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:12:21,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:12:21,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:12:21,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:12:21,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861929609] [2023-08-29 02:12:21,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1861929609] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:12:21,957 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:12:21,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 02:12:21,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824373700] [2023-08-29 02:12:21,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:12:21,958 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 02:12:21,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:12:21,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 02:12:21,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-08-29 02:12:22,612 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 139 out of 349 [2023-08-29 02:12:22,613 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 419 places, 1808 transitions, 75299 flow. Second operand has 10 states, 10 states have (on average 140.5) internal successors, (1405), 10 states have internal predecessors, (1405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:12:22,613 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:12:22,613 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 139 of 349 [2023-08-29 02:12:22,614 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:12:34,802 INFO L130 PetriNetUnfolder]: 8303/20030 cut-off events. [2023-08-29 02:12:34,802 INFO L131 PetriNetUnfolder]: For 964572/965329 co-relation queries the response was YES. [2023-08-29 02:12:34,972 INFO L83 FinitePrefix]: Finished finitePrefix Result has 176653 conditions, 20030 events. 8303/20030 cut-off events. For 964572/965329 co-relation queries the response was YES. Maximal size of possible extension queue 699. Compared 201985 event pairs, 1898 based on Foata normal form. 262/19816 useless extension candidates. Maximal degree in co-relation 176490. Up to 12026 conditions per place. [2023-08-29 02:12:35,041 INFO L137 encePairwiseOnDemand]: 335/349 looper letters, 1272 selfloop transitions, 490 changer transitions 2/2088 dead transitions. [2023-08-29 02:12:35,041 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 433 places, 2088 transitions, 86940 flow [2023-08-29 02:12:35,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-08-29 02:12:35,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-08-29 02:12:35,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2276 transitions. [2023-08-29 02:12:35,043 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43476599808978034 [2023-08-29 02:12:35,043 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2276 transitions. [2023-08-29 02:12:35,043 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2276 transitions. [2023-08-29 02:12:35,043 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:12:35,043 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2276 transitions. [2023-08-29 02:12:35,045 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 151.73333333333332) internal successors, (2276), 15 states have internal predecessors, (2276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:12:35,047 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 349.0) internal successors, (5584), 16 states have internal predecessors, (5584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:12:35,047 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 349.0) internal successors, (5584), 16 states have internal predecessors, (5584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:12:35,048 INFO L175 Difference]: Start difference. First operand has 419 places, 1808 transitions, 75299 flow. Second operand 15 states and 2276 transitions. [2023-08-29 02:12:35,048 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 433 places, 2088 transitions, 86940 flow [2023-08-29 02:12:46,927 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 433 places, 2088 transitions, 86124 flow, removed 408 selfloop flow, removed 0 redundant places. [2023-08-29 02:12:46,972 INFO L231 Difference]: Finished difference. Result has 437 places, 1898 transitions, 79472 flow [2023-08-29 02:12:46,973 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=349, PETRI_DIFFERENCE_MINUEND_FLOW=74507, PETRI_DIFFERENCE_MINUEND_PLACES=419, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1808, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=406, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1398, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=79472, PETRI_PLACES=437, PETRI_TRANSITIONS=1898} [2023-08-29 02:12:46,973 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 360 predicate places. [2023-08-29 02:12:46,973 INFO L495 AbstractCegarLoop]: Abstraction has has 437 places, 1898 transitions, 79472 flow [2023-08-29 02:12:46,973 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 140.5) internal successors, (1405), 10 states have internal predecessors, (1405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:12:46,973 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:12:46,973 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] [2023-08-29 02:12:46,973 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-08-29 02:12:46,973 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)] === [2023-08-29 02:12:46,974 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:12:46,974 INFO L85 PathProgramCache]: Analyzing trace with hash 662130624, now seen corresponding path program 1 times [2023-08-29 02:12:46,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:12:46,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675768325] [2023-08-29 02:12:46,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:12:46,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:12:47,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:12:47,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:12:47,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:12:47,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675768325] [2023-08-29 02:12:47,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [675768325] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:12:47,719 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:12:47,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-29 02:12:47,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498507461] [2023-08-29 02:12:47,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:12:47,720 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-29 02:12:47,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:12:47,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-29 02:12:47,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2023-08-29 02:12:48,417 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 349 [2023-08-29 02:12:48,418 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 437 places, 1898 transitions, 79472 flow. Second operand has 12 states, 12 states have (on average 125.58333333333333) internal successors, (1507), 12 states have internal predecessors, (1507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:12:48,418 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:12:48,418 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 349 [2023-08-29 02:12:48,418 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:13:01,912 INFO L130 PetriNetUnfolder]: 8371/20056 cut-off events. [2023-08-29 02:13:01,912 INFO L131 PetriNetUnfolder]: For 1005259/1006072 co-relation queries the response was YES. [2023-08-29 02:13:02,085 INFO L83 FinitePrefix]: Finished finitePrefix Result has 178731 conditions, 20056 events. 8371/20056 cut-off events. For 1005259/1006072 co-relation queries the response was YES. Maximal size of possible extension queue 738. Compared 201496 event pairs, 1800 based on Foata normal form. 155/19728 useless extension candidates. Maximal degree in co-relation 178563. Up to 10188 conditions per place. [2023-08-29 02:13:02,157 INFO L137 encePairwiseOnDemand]: 331/349 looper letters, 1170 selfloop transitions, 543 changer transitions 0/2125 dead transitions. [2023-08-29 02:13:02,157 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 455 places, 2125 transitions, 88808 flow [2023-08-29 02:13:02,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-08-29 02:13:02,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2023-08-29 02:13:02,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2564 transitions. [2023-08-29 02:13:02,159 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.38666867742421956 [2023-08-29 02:13:02,159 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2564 transitions. [2023-08-29 02:13:02,159 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2564 transitions. [2023-08-29 02:13:02,160 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:13:02,160 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2564 transitions. [2023-08-29 02:13:02,162 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 134.94736842105263) internal successors, (2564), 19 states have internal predecessors, (2564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:13:02,165 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 349.0) internal successors, (6980), 20 states have internal predecessors, (6980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:13:02,165 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 349.0) internal successors, (6980), 20 states have internal predecessors, (6980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:13:02,165 INFO L175 Difference]: Start difference. First operand has 437 places, 1898 transitions, 79472 flow. Second operand 19 states and 2564 transitions. [2023-08-29 02:13:02,165 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 455 places, 2125 transitions, 88808 flow [2023-08-29 02:13:14,356 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 452 places, 2125 transitions, 88731 flow, removed 14 selfloop flow, removed 3 redundant places. [2023-08-29 02:13:14,403 INFO L231 Difference]: Finished difference. Result has 458 places, 1928 transitions, 81979 flow [2023-08-29 02:13:14,405 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=349, PETRI_DIFFERENCE_MINUEND_FLOW=79395, PETRI_DIFFERENCE_MINUEND_PLACES=434, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1898, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=515, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1362, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=81979, PETRI_PLACES=458, PETRI_TRANSITIONS=1928} [2023-08-29 02:13:14,405 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 381 predicate places. [2023-08-29 02:13:14,405 INFO L495 AbstractCegarLoop]: Abstraction has has 458 places, 1928 transitions, 81979 flow [2023-08-29 02:13:14,405 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 125.58333333333333) internal successors, (1507), 12 states have internal predecessors, (1507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:13:14,405 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:13:14,405 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] [2023-08-29 02:13:14,405 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-08-29 02:13:14,405 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)] === [2023-08-29 02:13:14,406 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:13:14,406 INFO L85 PathProgramCache]: Analyzing trace with hash 1726368848, now seen corresponding path program 2 times [2023-08-29 02:13:14,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:13:14,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421255377] [2023-08-29 02:13:14,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:13:14,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:13:14,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:13:14,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:13:14,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:13:14,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421255377] [2023-08-29 02:13:14,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1421255377] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:13:14,986 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:13:14,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-29 02:13:14,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084038050] [2023-08-29 02:13:14,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:13:14,987 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-29 02:13:14,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:13:14,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-29 02:13:14,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2023-08-29 02:13:15,762 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 349 [2023-08-29 02:13:15,763 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 458 places, 1928 transitions, 81979 flow. Second operand has 12 states, 12 states have (on average 125.58333333333333) internal successors, (1507), 12 states have internal predecessors, (1507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:13:15,763 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:13:15,763 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 349 [2023-08-29 02:13:15,763 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:13:32,956 INFO L130 PetriNetUnfolder]: 10477/24999 cut-off events. [2023-08-29 02:13:32,956 INFO L131 PetriNetUnfolder]: For 1336183/1337358 co-relation queries the response was YES. [2023-08-29 02:13:33,217 INFO L83 FinitePrefix]: Finished finitePrefix Result has 235914 conditions, 24999 events. 10477/24999 cut-off events. For 1336183/1337358 co-relation queries the response was YES. Maximal size of possible extension queue 842. Compared 258881 event pairs, 1984 based on Foata normal form. 293/24776 useless extension candidates. Maximal degree in co-relation 235739. Up to 10079 conditions per place. [2023-08-29 02:13:33,308 INFO L137 encePairwiseOnDemand]: 333/349 looper letters, 2019 selfloop transitions, 260 changer transitions 0/2691 dead transitions. [2023-08-29 02:13:33,308 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 474 places, 2691 transitions, 111016 flow [2023-08-29 02:13:33,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-08-29 02:13:33,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-08-29 02:13:33,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2328 transitions. [2023-08-29 02:13:33,310 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.39238159447159954 [2023-08-29 02:13:33,310 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2328 transitions. [2023-08-29 02:13:33,310 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2328 transitions. [2023-08-29 02:13:33,311 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:13:33,311 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2328 transitions. [2023-08-29 02:13:33,312 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 136.94117647058823) internal successors, (2328), 17 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:13:33,315 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 349.0) internal successors, (6282), 18 states have internal predecessors, (6282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:13:33,315 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 349.0) internal successors, (6282), 18 states have internal predecessors, (6282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:13:33,316 INFO L175 Difference]: Start difference. First operand has 458 places, 1928 transitions, 81979 flow. Second operand 17 states and 2328 transitions. [2023-08-29 02:13:33,316 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 474 places, 2691 transitions, 111016 flow [2023-08-29 02:13:52,174 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 465 places, 2691 transitions, 110441 flow, removed 5 selfloop flow, removed 9 redundant places. [2023-08-29 02:13:52,227 INFO L231 Difference]: Finished difference. Result has 476 places, 2101 transitions, 90625 flow [2023-08-29 02:13:52,229 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=349, PETRI_DIFFERENCE_MINUEND_FLOW=81523, PETRI_DIFFERENCE_MINUEND_PLACES=449, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1928, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=100, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1690, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=90625, PETRI_PLACES=476, PETRI_TRANSITIONS=2101} [2023-08-29 02:13:52,229 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 399 predicate places. [2023-08-29 02:13:52,229 INFO L495 AbstractCegarLoop]: Abstraction has has 476 places, 2101 transitions, 90625 flow [2023-08-29 02:13:52,229 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 125.58333333333333) internal successors, (1507), 12 states have internal predecessors, (1507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:13:52,229 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:13:52,229 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] [2023-08-29 02:13:52,229 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-08-29 02:13:52,229 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)] === [2023-08-29 02:13:52,230 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:13:52,230 INFO L85 PathProgramCache]: Analyzing trace with hash -1178538352, now seen corresponding path program 3 times [2023-08-29 02:13:52,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:13:52,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019024846] [2023-08-29 02:13:52,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:13:52,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:13:52,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:13:52,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:13:52,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:13:52,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019024846] [2023-08-29 02:13:52,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1019024846] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:13:52,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:13:52,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-29 02:13:52,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967915958] [2023-08-29 02:13:52,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:13:52,753 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-29 02:13:52,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:13:52,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-29 02:13:52,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2023-08-29 02:13:53,445 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 349 [2023-08-29 02:13:53,446 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 476 places, 2101 transitions, 90625 flow. Second operand has 12 states, 12 states have (on average 125.58333333333333) internal successors, (1507), 12 states have internal predecessors, (1507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:13:53,446 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:13:53,446 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 349 [2023-08-29 02:13:53,446 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:14:12,665 INFO L130 PetriNetUnfolder]: 10467/25063 cut-off events. [2023-08-29 02:14:12,665 INFO L131 PetriNetUnfolder]: For 1381468/1382552 co-relation queries the response was YES. [2023-08-29 02:14:13,148 INFO L83 FinitePrefix]: Finished finitePrefix Result has 241940 conditions, 25063 events. 10467/25063 cut-off events. For 1381468/1382552 co-relation queries the response was YES. Maximal size of possible extension queue 843. Compared 259709 event pairs, 2150 based on Foata normal form. 290/24815 useless extension candidates. Maximal degree in co-relation 241753. Up to 12437 conditions per place. [2023-08-29 02:14:13,244 INFO L137 encePairwiseOnDemand]: 331/349 looper letters, 1204 selfloop transitions, 712 changer transitions 0/2328 dead transitions. [2023-08-29 02:14:13,244 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 495 places, 2328 transitions, 100368 flow [2023-08-29 02:14:13,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-08-29 02:14:13,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2023-08-29 02:14:13,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2696 transitions. [2023-08-29 02:14:13,247 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3862464183381089 [2023-08-29 02:14:13,247 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2696 transitions. [2023-08-29 02:14:13,247 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2696 transitions. [2023-08-29 02:14:13,247 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:14:13,247 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2696 transitions. [2023-08-29 02:14:13,249 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 134.8) internal successors, (2696), 20 states have internal predecessors, (2696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:14:13,252 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 349.0) internal successors, (7329), 21 states have internal predecessors, (7329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:14:13,253 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 349.0) internal successors, (7329), 21 states have internal predecessors, (7329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:14:13,253 INFO L175 Difference]: Start difference. First operand has 476 places, 2101 transitions, 90625 flow. Second operand 20 states and 2696 transitions. [2023-08-29 02:14:13,253 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 495 places, 2328 transitions, 100368 flow [2023-08-29 02:14:35,876 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 495 places, 2328 transitions, 100304 flow, removed 32 selfloop flow, removed 0 redundant places. [2023-08-29 02:14:35,930 INFO L231 Difference]: Finished difference. Result has 502 places, 2121 transitions, 92886 flow [2023-08-29 02:14:35,931 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=349, PETRI_DIFFERENCE_MINUEND_FLOW=90575, PETRI_DIFFERENCE_MINUEND_PLACES=476, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=692, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1403, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=92886, PETRI_PLACES=502, PETRI_TRANSITIONS=2121} [2023-08-29 02:14:35,931 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 425 predicate places. [2023-08-29 02:14:35,931 INFO L495 AbstractCegarLoop]: Abstraction has has 502 places, 2121 transitions, 92886 flow [2023-08-29 02:14:35,932 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 125.58333333333333) internal successors, (1507), 12 states have internal predecessors, (1507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:14:35,932 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:14:35,932 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] [2023-08-29 02:14:35,932 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-08-29 02:14:35,932 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)] === [2023-08-29 02:14:35,932 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:14:35,932 INFO L85 PathProgramCache]: Analyzing trace with hash -5922688, now seen corresponding path program 4 times [2023-08-29 02:14:35,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:14:35,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276801714] [2023-08-29 02:14:35,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:14:35,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:14:35,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:14:36,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:14:36,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:14:36,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276801714] [2023-08-29 02:14:36,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1276801714] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:14:36,505 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:14:36,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-29 02:14:36,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297605271] [2023-08-29 02:14:36,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:14:36,505 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-29 02:14:36,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:14:36,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-29 02:14:36,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2023-08-29 02:14:37,308 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 349 [2023-08-29 02:14:37,309 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 502 places, 2121 transitions, 92886 flow. Second operand has 12 states, 12 states have (on average 125.58333333333333) internal successors, (1507), 12 states have internal predecessors, (1507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:14:37,309 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:14:37,309 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 349 [2023-08-29 02:14:37,309 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:15:04,005 INFO L130 PetriNetUnfolder]: 14433/34370 cut-off events. [2023-08-29 02:15:04,005 INFO L131 PetriNetUnfolder]: For 1895146/1896229 co-relation queries the response was YES. [2023-08-29 02:15:04,684 INFO L83 FinitePrefix]: Finished finitePrefix Result has 330691 conditions, 34370 events. 14433/34370 cut-off events. For 1895146/1896229 co-relation queries the response was YES. Maximal size of possible extension queue 1141. Compared 374899 event pairs, 2132 based on Foata normal form. 162/33866 useless extension candidates. Maximal degree in co-relation 330496. Up to 13537 conditions per place. [2023-08-29 02:15:04,859 INFO L137 encePairwiseOnDemand]: 333/349 looper letters, 2351 selfloop transitions, 516 changer transitions 0/3279 dead transitions. [2023-08-29 02:15:04,859 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 517 places, 3279 transitions, 144347 flow [2023-08-29 02:15:04,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-08-29 02:15:04,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-08-29 02:15:04,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2176 transitions. [2023-08-29 02:15:04,862 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.38968481375358166 [2023-08-29 02:15:04,862 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 2176 transitions. [2023-08-29 02:15:04,863 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 2176 transitions. [2023-08-29 02:15:04,863 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:15:04,863 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 2176 transitions. [2023-08-29 02:15:04,865 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 136.0) internal successors, (2176), 16 states have internal predecessors, (2176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:15:04,868 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 349.0) internal successors, (5933), 17 states have internal predecessors, (5933), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:15:04,868 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 349.0) internal successors, (5933), 17 states have internal predecessors, (5933), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:15:04,868 INFO L175 Difference]: Start difference. First operand has 502 places, 2121 transitions, 92886 flow. Second operand 16 states and 2176 transitions. [2023-08-29 02:15:04,868 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 517 places, 3279 transitions, 144347 flow [2023-08-29 02:15:37,902 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 505 places, 3279 transitions, 142879 flow, removed 36 selfloop flow, removed 12 redundant places. [2023-08-29 02:15:37,975 INFO L231 Difference]: Finished difference. Result has 515 places, 2503 transitions, 114602 flow [2023-08-29 02:15:37,976 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=349, PETRI_DIFFERENCE_MINUEND_FLOW=91967, PETRI_DIFFERENCE_MINUEND_PLACES=490, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=144, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1639, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=114602, PETRI_PLACES=515, PETRI_TRANSITIONS=2503} [2023-08-29 02:15:37,977 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 438 predicate places. [2023-08-29 02:15:37,977 INFO L495 AbstractCegarLoop]: Abstraction has has 515 places, 2503 transitions, 114602 flow [2023-08-29 02:15:37,977 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 125.58333333333333) internal successors, (1507), 12 states have internal predecessors, (1507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:15:37,978 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:15:37,978 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] [2023-08-29 02:15:37,978 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-08-29 02:15:37,978 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)] === [2023-08-29 02:15:37,978 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:15:37,979 INFO L85 PathProgramCache]: Analyzing trace with hash 2054901502, now seen corresponding path program 5 times [2023-08-29 02:15:37,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:15:37,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918667520] [2023-08-29 02:15:37,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:15:37,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:15:38,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:15:38,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:15:38,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:15:38,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918667520] [2023-08-29 02:15:38,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [918667520] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:15:38,717 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:15:38,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-29 02:15:38,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471533375] [2023-08-29 02:15:38,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:15:38,717 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-29 02:15:38,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:15:38,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-29 02:15:38,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2023-08-29 02:15:39,911 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 349 [2023-08-29 02:15:39,912 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 515 places, 2503 transitions, 114602 flow. Second operand has 12 states, 12 states have (on average 125.58333333333333) internal successors, (1507), 12 states have internal predecessors, (1507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:15:39,912 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:15:39,912 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 349 [2023-08-29 02:15:39,912 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:16:14,049 INFO L130 PetriNetUnfolder]: 14578/34461 cut-off events. [2023-08-29 02:16:14,050 INFO L131 PetriNetUnfolder]: For 1959257/1960749 co-relation queries the response was YES. [2023-08-29 02:16:14,727 INFO L83 FinitePrefix]: Finished finitePrefix Result has 337914 conditions, 34461 events. 14578/34461 cut-off events. For 1959257/1960749 co-relation queries the response was YES. Maximal size of possible extension queue 1124. Compared 372722 event pairs, 3087 based on Foata normal form. 357/34100 useless extension candidates. Maximal degree in co-relation 337709. Up to 17687 conditions per place. [2023-08-29 02:16:14,869 INFO L137 encePairwiseOnDemand]: 331/349 looper letters, 1337 selfloop transitions, 934 changer transitions 0/2683 dead transitions. [2023-08-29 02:16:14,869 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 532 places, 2683 transitions, 124029 flow [2023-08-29 02:16:14,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-08-29 02:16:14,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-08-29 02:16:14,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2429 transitions. [2023-08-29 02:16:14,872 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.38666029926774914 [2023-08-29 02:16:14,872 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2429 transitions. [2023-08-29 02:16:14,872 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2429 transitions. [2023-08-29 02:16:14,872 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:16:14,872 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2429 transitions. [2023-08-29 02:16:14,875 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 134.94444444444446) internal successors, (2429), 18 states have internal predecessors, (2429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:16:14,878 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 349.0) internal successors, (6631), 19 states have internal predecessors, (6631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:16:14,879 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 349.0) internal successors, (6631), 19 states have internal predecessors, (6631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:16:14,879 INFO L175 Difference]: Start difference. First operand has 515 places, 2503 transitions, 114602 flow. Second operand 18 states and 2429 transitions. [2023-08-29 02:16:14,879 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 532 places, 2683 transitions, 124029 flow [2023-08-29 02:16:49,408 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 531 places, 2683 transitions, 123748 flow, removed 134 selfloop flow, removed 1 redundant places. [2023-08-29 02:16:49,476 INFO L231 Difference]: Finished difference. Result has 537 places, 2535 transitions, 117673 flow [2023-08-29 02:16:49,477 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=349, PETRI_DIFFERENCE_MINUEND_FLOW=114349, PETRI_DIFFERENCE_MINUEND_PLACES=514, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2503, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=906, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1580, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=117673, PETRI_PLACES=537, PETRI_TRANSITIONS=2535} [2023-08-29 02:16:49,477 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 460 predicate places. [2023-08-29 02:16:49,478 INFO L495 AbstractCegarLoop]: Abstraction has has 537 places, 2535 transitions, 117673 flow [2023-08-29 02:16:49,478 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 125.58333333333333) internal successors, (1507), 12 states have internal predecessors, (1507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:16:49,478 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:16:49,478 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] [2023-08-29 02:16:49,478 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-08-29 02:16:49,478 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)] === [2023-08-29 02:16:49,478 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:16:49,478 INFO L85 PathProgramCache]: Analyzing trace with hash -718664832, now seen corresponding path program 6 times [2023-08-29 02:16:49,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:16:49,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950840221] [2023-08-29 02:16:49,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:16:49,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:16:49,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:16:49,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:16:49,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:16:49,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950840221] [2023-08-29 02:16:49,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [950840221] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:16:49,942 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:16:49,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-29 02:16:49,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448695450] [2023-08-29 02:16:49,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:16:49,942 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-29 02:16:49,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:16:49,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-29 02:16:49,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2023-08-29 02:16:50,742 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 349 [2023-08-29 02:16:50,743 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 537 places, 2535 transitions, 117673 flow. Second operand has 12 states, 12 states have (on average 125.58333333333333) internal successors, (1507), 12 states have internal predecessors, (1507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:16:50,743 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:16:50,743 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 349 [2023-08-29 02:16:50,743 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:17:25,722 INFO L130 PetriNetUnfolder]: 14810/35040 cut-off events. [2023-08-29 02:17:25,722 INFO L131 PetriNetUnfolder]: For 2073892/2075260 co-relation queries the response was YES. [2023-08-29 02:17:26,499 INFO L83 FinitePrefix]: Finished finitePrefix Result has 349731 conditions, 35040 events. 14810/35040 cut-off events. For 2073892/2075260 co-relation queries the response was YES. Maximal size of possible extension queue 1134. Compared 379573 event pairs, 3246 based on Foata normal form. 310/34576 useless extension candidates. Maximal degree in co-relation 349519. Up to 19647 conditions per place. [2023-08-29 02:17:26,654 INFO L137 encePairwiseOnDemand]: 334/349 looper letters, 1742 selfloop transitions, 664 changer transitions 0/2818 dead transitions. [2023-08-29 02:17:26,655 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 553 places, 2818 transitions, 130554 flow [2023-08-29 02:17:26,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-08-29 02:17:26,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-08-29 02:17:26,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2309 transitions. [2023-08-29 02:17:26,657 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3891791673689533 [2023-08-29 02:17:26,657 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2309 transitions. [2023-08-29 02:17:26,657 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2309 transitions. [2023-08-29 02:17:26,657 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:17:26,657 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2309 transitions. [2023-08-29 02:17:26,659 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 135.8235294117647) internal successors, (2309), 17 states have internal predecessors, (2309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:17:26,662 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 349.0) internal successors, (6282), 18 states have internal predecessors, (6282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:17:26,662 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 349.0) internal successors, (6282), 18 states have internal predecessors, (6282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:17:26,662 INFO L175 Difference]: Start difference. First operand has 537 places, 2535 transitions, 117673 flow. Second operand 17 states and 2309 transitions. [2023-08-29 02:17:26,662 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 553 places, 2818 transitions, 130554 flow [2023-08-29 02:18:02,937 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 544 places, 2818 transitions, 129580 flow, removed 102 selfloop flow, removed 9 redundant places. [2023-08-29 02:18:03,009 INFO L231 Difference]: Finished difference. Result has 553 places, 2585 transitions, 120791 flow [2023-08-29 02:18:03,011 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=349, PETRI_DIFFERENCE_MINUEND_FLOW=116757, PETRI_DIFFERENCE_MINUEND_PLACES=528, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2535, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=619, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1885, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=120791, PETRI_PLACES=553, PETRI_TRANSITIONS=2585} [2023-08-29 02:18:03,012 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 476 predicate places. [2023-08-29 02:18:03,012 INFO L495 AbstractCegarLoop]: Abstraction has has 553 places, 2585 transitions, 120791 flow [2023-08-29 02:18:03,012 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 125.58333333333333) internal successors, (1507), 12 states have internal predecessors, (1507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:18:03,012 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:18:03,012 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] [2023-08-29 02:18:03,012 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-08-29 02:18:03,012 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)] === [2023-08-29 02:18:03,013 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:18:03,013 INFO L85 PathProgramCache]: Analyzing trace with hash -729482594, now seen corresponding path program 7 times [2023-08-29 02:18:03,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:18:03,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946734158] [2023-08-29 02:18:03,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:18:03,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:18:03,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:18:03,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:18:03,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:18:03,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946734158] [2023-08-29 02:18:03,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1946734158] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:18:03,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:18:03,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-29 02:18:03,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165556189] [2023-08-29 02:18:03,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:18:03,653 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-29 02:18:03,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:18:03,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-29 02:18:03,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2023-08-29 02:18:04,474 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 349 [2023-08-29 02:18:04,474 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 553 places, 2585 transitions, 120791 flow. Second operand has 12 states, 12 states have (on average 125.58333333333333) internal successors, (1507), 12 states have internal predecessors, (1507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:18:04,474 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:18:04,474 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 349 [2023-08-29 02:18:04,474 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:18:39,540 INFO L130 PetriNetUnfolder]: 14834/35047 cut-off events. [2023-08-29 02:18:39,540 INFO L131 PetriNetUnfolder]: For 2142422/2143888 co-relation queries the response was YES. [2023-08-29 02:18:40,415 INFO L83 FinitePrefix]: Finished finitePrefix Result has 356474 conditions, 35047 events. 14834/35047 cut-off events. For 2142422/2143888 co-relation queries the response was YES. Maximal size of possible extension queue 1127. Compared 379252 event pairs, 3180 based on Foata normal form. 343/34653 useless extension candidates. Maximal degree in co-relation 356254. Up to 17720 conditions per place. [2023-08-29 02:18:40,580 INFO L137 encePairwiseOnDemand]: 331/349 looper letters, 1238 selfloop transitions, 1137 changer transitions 0/2787 dead transitions. [2023-08-29 02:18:40,580 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 575 places, 2787 transitions, 130946 flow [2023-08-29 02:18:40,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-08-29 02:18:40,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2023-08-29 02:18:40,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 3076 transitions. [2023-08-29 02:18:40,583 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.38320667746356046 [2023-08-29 02:18:40,583 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 3076 transitions. [2023-08-29 02:18:40,583 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 3076 transitions. [2023-08-29 02:18:40,583 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:18:40,583 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 3076 transitions. [2023-08-29 02:18:40,586 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 133.7391304347826) internal successors, (3076), 23 states have internal predecessors, (3076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:18:40,589 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 349.0) internal successors, (8376), 24 states have internal predecessors, (8376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:18:40,589 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 349.0) internal successors, (8376), 24 states have internal predecessors, (8376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:18:40,589 INFO L175 Difference]: Start difference. First operand has 553 places, 2585 transitions, 120791 flow. Second operand 23 states and 3076 transitions. [2023-08-29 02:18:40,589 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 575 places, 2787 transitions, 130946 flow [2023-08-29 02:19:19,485 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 572 places, 2787 transitions, 130619 flow, removed 131 selfloop flow, removed 3 redundant places. [2023-08-29 02:19:19,594 INFO L231 Difference]: Finished difference. Result has 579 places, 2600 transitions, 123864 flow [2023-08-29 02:19:19,596 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=349, PETRI_DIFFERENCE_MINUEND_FLOW=120464, PETRI_DIFFERENCE_MINUEND_PLACES=550, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2585, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1122, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1454, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=123864, PETRI_PLACES=579, PETRI_TRANSITIONS=2600} [2023-08-29 02:19:19,597 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 502 predicate places. [2023-08-29 02:19:19,597 INFO L495 AbstractCegarLoop]: Abstraction has has 579 places, 2600 transitions, 123864 flow [2023-08-29 02:19:19,597 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 125.58333333333333) internal successors, (1507), 12 states have internal predecessors, (1507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:19:19,597 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:19:19,598 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] [2023-08-29 02:19:19,598 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-08-29 02:19:19,601 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)] === [2023-08-29 02:19:19,601 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:19:19,601 INFO L85 PathProgramCache]: Analyzing trace with hash 1571631184, now seen corresponding path program 8 times [2023-08-29 02:19:19,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:19:19,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966981792] [2023-08-29 02:19:19,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:19:19,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:19:19,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:19:20,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:19:20,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:19:20,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966981792] [2023-08-29 02:19:20,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1966981792] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:19:20,122 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:19:20,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-29 02:19:20,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358823413] [2023-08-29 02:19:20,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:19:20,123 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-29 02:19:20,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:19:20,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-29 02:19:20,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2023-08-29 02:19:20,917 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 349 [2023-08-29 02:19:20,918 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 579 places, 2600 transitions, 123864 flow. Second operand has 12 states, 12 states have (on average 125.58333333333333) internal successors, (1507), 12 states have internal predecessors, (1507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:19:20,918 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:19:20,918 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 349 [2023-08-29 02:19:20,918 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:19:56,986 INFO L130 PetriNetUnfolder]: 14823/35056 cut-off events. [2023-08-29 02:19:56,986 INFO L131 PetriNetUnfolder]: For 2231152/2232727 co-relation queries the response was YES. [2023-08-29 02:19:57,629 INFO L83 FinitePrefix]: Finished finitePrefix Result has 363856 conditions, 35056 events. 14823/35056 cut-off events. For 2231152/2232727 co-relation queries the response was YES. Maximal size of possible extension queue 1118. Compared 379694 event pairs, 3139 based on Foata normal form. 402/34733 useless extension candidates. Maximal degree in co-relation 363628. Up to 17738 conditions per place. [2023-08-29 02:19:57,927 INFO L137 encePairwiseOnDemand]: 331/349 looper letters, 1438 selfloop transitions, 898 changer transitions 0/2748 dead transitions. [2023-08-29 02:19:57,927 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 595 places, 2748 transitions, 132476 flow [2023-08-29 02:19:57,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-08-29 02:19:57,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-08-29 02:19:57,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2298 transitions. [2023-08-29 02:19:57,933 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.38732513062531604 [2023-08-29 02:19:57,933 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2298 transitions. [2023-08-29 02:19:57,933 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2298 transitions. [2023-08-29 02:19:57,934 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:19:57,934 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2298 transitions. [2023-08-29 02:19:57,937 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 135.1764705882353) internal successors, (2298), 17 states have internal predecessors, (2298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:19:57,939 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 349.0) internal successors, (6282), 18 states have internal predecessors, (6282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:19:57,940 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 349.0) internal successors, (6282), 18 states have internal predecessors, (6282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:19:57,940 INFO L175 Difference]: Start difference. First operand has 579 places, 2600 transitions, 123864 flow. Second operand 17 states and 2298 transitions. [2023-08-29 02:19:57,940 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 595 places, 2748 transitions, 132476 flow [2023-08-29 02:20:35,466 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 583 places, 2748 transitions, 131240 flow, removed 43 selfloop flow, removed 12 redundant places. [2023-08-29 02:20:35,535 INFO L231 Difference]: Finished difference. Result has 590 places, 2622 transitions, 125665 flow [2023-08-29 02:20:35,536 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=349, PETRI_DIFFERENCE_MINUEND_FLOW=122636, PETRI_DIFFERENCE_MINUEND_PLACES=567, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2600, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=877, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1711, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=125665, PETRI_PLACES=590, PETRI_TRANSITIONS=2622} [2023-08-29 02:20:35,537 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 513 predicate places. [2023-08-29 02:20:35,537 INFO L495 AbstractCegarLoop]: Abstraction has has 590 places, 2622 transitions, 125665 flow [2023-08-29 02:20:35,537 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 125.58333333333333) internal successors, (1507), 12 states have internal predecessors, (1507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:20:35,537 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:20:35,537 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] [2023-08-29 02:20:35,537 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-08-29 02:20:35,537 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)] === [2023-08-29 02:20:35,537 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:20:35,537 INFO L85 PathProgramCache]: Analyzing trace with hash -791660194, now seen corresponding path program 9 times [2023-08-29 02:20:35,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:20:35,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574464025] [2023-08-29 02:20:35,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:20:35,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:20:35,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:20:36,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:20:36,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:20:36,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574464025] [2023-08-29 02:20:36,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1574464025] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:20:36,091 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:20:36,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-29 02:20:36,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651719942] [2023-08-29 02:20:36,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:20:36,092 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-29 02:20:36,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:20:36,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-29 02:20:36,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2023-08-29 02:20:36,938 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 349 [2023-08-29 02:20:36,939 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 590 places, 2622 transitions, 125665 flow. Second operand has 12 states, 12 states have (on average 125.58333333333333) internal successors, (1507), 12 states have internal predecessors, (1507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:20:36,939 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:20:36,939 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 349 [2023-08-29 02:20:36,939 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:21:13,007 INFO L130 PetriNetUnfolder]: 14886/35180 cut-off events. [2023-08-29 02:21:13,008 INFO L131 PetriNetUnfolder]: For 2332137/2333625 co-relation queries the response was YES. [2023-08-29 02:21:13,719 INFO L83 FinitePrefix]: Finished finitePrefix Result has 369894 conditions, 35180 events. 14886/35180 cut-off events. For 2332137/2333625 co-relation queries the response was YES. Maximal size of possible extension queue 1125. Compared 381031 event pairs, 3178 based on Foata normal form. 357/34795 useless extension candidates. Maximal degree in co-relation 369659. Up to 17732 conditions per place. [2023-08-29 02:21:13,874 INFO L137 encePairwiseOnDemand]: 331/349 looper letters, 1406 selfloop transitions, 994 changer transitions 0/2812 dead transitions. [2023-08-29 02:21:13,874 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 610 places, 2812 transitions, 135548 flow [2023-08-29 02:21:13,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-08-29 02:21:13,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2023-08-29 02:21:13,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2812 transitions. [2023-08-29 02:21:13,876 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.38368126620275617 [2023-08-29 02:21:13,876 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 2812 transitions. [2023-08-29 02:21:13,876 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 2812 transitions. [2023-08-29 02:21:13,877 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:21:13,877 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 2812 transitions. [2023-08-29 02:21:13,879 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 133.9047619047619) internal successors, (2812), 21 states have internal predecessors, (2812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:21:13,882 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 349.0) internal successors, (7678), 22 states have internal predecessors, (7678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:21:13,882 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 349.0) internal successors, (7678), 22 states have internal predecessors, (7678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:21:13,882 INFO L175 Difference]: Start difference. First operand has 590 places, 2622 transitions, 125665 flow. Second operand 21 states and 2812 transitions. [2023-08-29 02:21:13,882 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 610 places, 2812 transitions, 135548 flow [2023-08-29 02:21:52,661 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 605 places, 2812 transitions, 135027 flow, removed 164 selfloop flow, removed 5 redundant places. [2023-08-29 02:21:52,736 INFO L231 Difference]: Finished difference. Result has 614 places, 2658 transitions, 128816 flow [2023-08-29 02:21:52,738 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=349, PETRI_DIFFERENCE_MINUEND_FLOW=125176, PETRI_DIFFERENCE_MINUEND_PLACES=585, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2622, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=960, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1644, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=128816, PETRI_PLACES=614, PETRI_TRANSITIONS=2658} [2023-08-29 02:21:52,738 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 537 predicate places. [2023-08-29 02:21:52,738 INFO L495 AbstractCegarLoop]: Abstraction has has 614 places, 2658 transitions, 128816 flow [2023-08-29 02:21:52,738 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 125.58333333333333) internal successors, (1507), 12 states have internal predecessors, (1507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:21:52,738 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:21:52,739 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] [2023-08-29 02:21:52,739 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-08-29 02:21:52,739 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-08-29 02:21:52,739 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:21:52,739 INFO L85 PathProgramCache]: Analyzing trace with hash -1107013662, now seen corresponding path program 10 times [2023-08-29 02:21:52,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:21:52,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144740307] [2023-08-29 02:21:52,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:21:52,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:21:52,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:21:53,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:21:53,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:21:53,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144740307] [2023-08-29 02:21:53,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2144740307] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:21:53,293 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:21:53,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-29 02:21:53,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096082172] [2023-08-29 02:21:53,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:21:53,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-29 02:21:53,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:21:53,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-29 02:21:53,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2023-08-29 02:21:54,213 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 349 [2023-08-29 02:21:54,214 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 614 places, 2658 transitions, 128816 flow. Second operand has 12 states, 12 states have (on average 125.58333333333333) internal successors, (1507), 12 states have internal predecessors, (1507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:21:54,214 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:21:54,214 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 349 [2023-08-29 02:21:54,214 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:22:30,546 INFO L130 PetriNetUnfolder]: 14876/35157 cut-off events. [2023-08-29 02:22:30,546 INFO L131 PetriNetUnfolder]: For 2452556/2454071 co-relation queries the response was YES. [2023-08-29 02:22:31,380 INFO L83 FinitePrefix]: Finished finitePrefix Result has 374715 conditions, 35157 events. 14876/35157 cut-off events. For 2452556/2454071 co-relation queries the response was YES. Maximal size of possible extension queue 1123. Compared 380862 event pairs, 3160 based on Foata normal form. 384/35121 useless extension candidates. Maximal degree in co-relation 374471. Up to 17774 conditions per place. [2023-08-29 02:22:31,535 INFO L137 encePairwiseOnDemand]: 331/349 looper letters, 1258 selfloop transitions, 1187 changer transitions 0/2857 dead transitions. [2023-08-29 02:22:31,535 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 637 places, 2857 transitions, 139102 flow [2023-08-29 02:22:31,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-08-29 02:22:31,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2023-08-29 02:22:31,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 3209 transitions. [2023-08-29 02:22:31,537 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3831184336198663 [2023-08-29 02:22:31,537 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 3209 transitions. [2023-08-29 02:22:31,537 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 3209 transitions. [2023-08-29 02:22:31,538 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:22:31,538 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 3209 transitions. [2023-08-29 02:22:31,540 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 133.70833333333334) internal successors, (3209), 24 states have internal predecessors, (3209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:22:31,543 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 349.0) internal successors, (8725), 25 states have internal predecessors, (8725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:22:31,543 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 349.0) internal successors, (8725), 25 states have internal predecessors, (8725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:22:31,543 INFO L175 Difference]: Start difference. First operand has 614 places, 2658 transitions, 128816 flow. Second operand 24 states and 3209 transitions. [2023-08-29 02:22:31,544 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 637 places, 2857 transitions, 139102 flow Killed by 15