./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/goblint-regression/09-regions_02-list_nr.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations 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_02-list_nr.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 68b918b5051efa1a4363a7cd528e42e31cd4f687fef5116849d37b2131e9c46c --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-29 02:13:57,358 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 02:13:57,359 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 02:13:57,393 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 02:13:57,394 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 02:13:57,397 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 02:13:57,399 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 02:13:57,401 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 02:13:57,403 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 02:13:57,407 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 02:13:57,408 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 02:13:57,411 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 02:13:57,411 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 02:13:57,413 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 02:13:57,415 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 02:13:57,420 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 02:13:57,421 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 02:13:57,424 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 02:13:57,425 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 02:13:57,430 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 02:13:57,431 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 02:13:57,437 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 02:13:57,438 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 02:13:57,439 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 02:13:57,446 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 02:13:57,446 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 02:13:57,446 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 02:13:57,449 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 02:13:57,449 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 02:13:57,450 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 02:13:57,450 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 02:13:57,452 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 02:13:57,453 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 02:13:57,454 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 02:13:57,455 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 02:13:57,455 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 02:13:57,456 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 02:13:57,456 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 02:13:57,456 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 02:13:57,457 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 02:13:57,457 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 02:13:57,459 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-29 02:13:57,497 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 02:13:57,497 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 02:13:57,498 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 02:13:57,498 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 02:13:57,499 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 02:13:57,499 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 02:13:57,500 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 02:13:57,500 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 02:13:57,501 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 02:13:57,501 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 02:13:57,502 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 02:13:57,502 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 02:13:57,502 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 02:13:57,502 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 02:13:57,502 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 02:13:57,503 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-29 02:13:57,503 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 02:13:57,503 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-29 02:13:57,503 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-29 02:13:57,503 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 02:13:57,504 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-29 02:13:57,504 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 02:13:57,504 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-29 02:13:57,504 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 02:13:57,505 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 02:13:57,505 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 02:13:57,505 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 02:13:57,505 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 02:13:57,505 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 02:13:57,506 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-29 02:13:57,506 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 02:13:57,506 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 02:13:57,507 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 02:13:57,507 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-29 02:13:57,507 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 02:13:57,507 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 02:13:57,507 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 02:13:57,508 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 68b918b5051efa1a4363a7cd528e42e31cd4f687fef5116849d37b2131e9c46c Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-29 02:13:57,805 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 02:13:57,831 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 02:13:57,834 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 02:13:57,835 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 02:13:57,836 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 02:13:57,837 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/09-regions_02-list_nr.i [2023-08-29 02:13:59,067 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 02:13:59,344 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 02:13:59,345 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/09-regions_02-list_nr.i [2023-08-29 02:13:59,361 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/421fd51d8/11cce6d37667493ba561661e5667729a/FLAG4e2bb3eb5 [2023-08-29 02:13:59,386 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/421fd51d8/11cce6d37667493ba561661e5667729a [2023-08-29 02:13:59,390 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 02:13:59,391 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 02:13:59,392 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 02:13:59,392 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 02:13:59,398 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 02:13:59,399 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 02:13:59" (1/1) ... [2023-08-29 02:13:59,400 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@242e7527 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:13:59, skipping insertion in model container [2023-08-29 02:13:59,400 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 02:13:59" (1/1) ... [2023-08-29 02:13:59,407 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 02:13:59,470 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 02:13:59,973 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 02:13:59,986 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 02:14:00,048 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 02:14:00,114 INFO L208 MainTranslator]: Completed translation [2023-08-29 02:14:00,114 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:14:00 WrapperNode [2023-08-29 02:14:00,115 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 02:14:00,116 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 02:14:00,116 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 02:14:00,116 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 02:14:00,121 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:14:00" (1/1) ... [2023-08-29 02:14:00,140 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:14:00" (1/1) ... [2023-08-29 02:14:00,167 INFO L138 Inliner]: procedures = 368, calls = 29, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 172 [2023-08-29 02:14:00,168 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 02:14:00,169 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 02:14:00,169 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 02:14:00,169 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 02:14:00,176 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:14:00" (1/1) ... [2023-08-29 02:14:00,180 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:14:00" (1/1) ... [2023-08-29 02:14:00,185 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:14:00" (1/1) ... [2023-08-29 02:14:00,186 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:14:00" (1/1) ... [2023-08-29 02:14:00,213 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:14:00" (1/1) ... [2023-08-29 02:14:00,215 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:14:00" (1/1) ... [2023-08-29 02:14:00,217 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:14:00" (1/1) ... [2023-08-29 02:14:00,218 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:14:00" (1/1) ... [2023-08-29 02:14:00,221 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 02:14:00,222 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 02:14:00,222 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 02:14:00,223 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 02:14:00,223 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:14:00" (1/1) ... [2023-08-29 02:14:00,229 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 02:14:00,243 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 02:14:00,254 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-29 02:14:00,262 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-29 02:14:00,284 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 02:14:00,285 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-08-29 02:14:00,285 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 02:14:00,285 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-29 02:14:00,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-29 02:14:00,285 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-29 02:14:00,293 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-29 02:14:00,293 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-29 02:14:00,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-08-29 02:14:00,294 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-29 02:14:00,294 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-29 02:14:00,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-29 02:14:00,294 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 02:14:00,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 02:14:00,296 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-29 02:14:00,420 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 02:14:00,421 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 02:14:00,811 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 02:14:00,818 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 02:14:00,819 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-29 02:14:00,820 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 02:14:00 BoogieIcfgContainer [2023-08-29 02:14:00,821 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 02:14:00,822 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 02:14:00,822 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 02:14:00,825 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 02:14:00,826 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 02:13:59" (1/3) ... [2023-08-29 02:14:00,826 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31ae4c0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 02:14:00, skipping insertion in model container [2023-08-29 02:14:00,826 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:14:00" (2/3) ... [2023-08-29 02:14:00,827 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31ae4c0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 02:14:00, skipping insertion in model container [2023-08-29 02:14:00,827 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 02:14:00" (3/3) ... [2023-08-29 02:14:00,828 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_02-list_nr.i [2023-08-29 02:14:00,835 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-29 02:14:00,843 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 02:14:00,844 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2023-08-29 02:14:00,844 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 02:14:00,942 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-29 02:14:00,995 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 200 places, 196 transitions, 397 flow [2023-08-29 02:14:01,086 INFO L130 PetriNetUnfolder]: 0/195 cut-off events. [2023-08-29 02:14:01,086 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 02:14:01,089 INFO L83 FinitePrefix]: Finished finitePrefix Result has 199 conditions, 195 events. 0/195 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 83 event pairs, 0 based on Foata normal form. 0/177 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-08-29 02:14:01,090 INFO L82 GeneralOperation]: Start removeDead. Operand has 200 places, 196 transitions, 397 flow [2023-08-29 02:14:01,101 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 199 places, 195 transitions, 393 flow [2023-08-29 02:14:01,104 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 02:14:01,123 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 199 places, 195 transitions, 393 flow [2023-08-29 02:14:01,126 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 199 places, 195 transitions, 393 flow [2023-08-29 02:14:01,126 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 199 places, 195 transitions, 393 flow [2023-08-29 02:14:01,184 INFO L130 PetriNetUnfolder]: 0/195 cut-off events. [2023-08-29 02:14:01,184 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 02:14:01,184 INFO L83 FinitePrefix]: Finished finitePrefix Result has 199 conditions, 195 events. 0/195 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 83 event pairs, 0 based on Foata normal form. 0/177 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-08-29 02:14:01,187 INFO L119 LiptonReduction]: Number of co-enabled transitions 4092 [2023-08-29 02:14:41,607 WARN L222 SmtUtils]: Spent 15.22s on a formula simplification that was a NOOP. DAG size: 250 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 02:15:00,349 WARN L222 SmtUtils]: Spent 15.48s on a formula simplification that was a NOOP. DAG size: 250 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 02:15:13,098 WARN L222 SmtUtils]: Spent 12.74s on a formula simplification that was a NOOP. DAG size: 224 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 02:15:33,100 WARN L222 SmtUtils]: Spent 19.22s on a formula simplification. DAG size of input: 262 DAG size of output: 259 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 02:15:42,666 WARN L222 SmtUtils]: Spent 9.56s on a formula simplification that was a NOOP. DAG size: 251 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 02:16:39,056 WARN L222 SmtUtils]: Spent 56.39s on a formula simplification. DAG size of input: 262 DAG size of output: 259 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 02:16:52,194 WARN L222 SmtUtils]: Spent 13.13s on a formula simplification that was a NOOP. DAG size: 251 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 02:16:52,198 INFO L134 LiptonReduction]: Checked pairs total: 38163 [2023-08-29 02:16:52,198 INFO L136 LiptonReduction]: Total number of compositions: 159 [2023-08-29 02:16:52,211 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 02:16:52,216 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;@67f2793, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 02:16:52,216 INFO L358 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2023-08-29 02:16:52,218 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-29 02:16:52,218 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 02:16:52,218 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:16:52,218 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-29 02:16:52,219 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-08-29 02:16:52,223 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:16:52,223 INFO L85 PathProgramCache]: Analyzing trace with hash 643, now seen corresponding path program 1 times [2023-08-29 02:16:52,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:16:52,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123174707] [2023-08-29 02:16:52,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:16:52,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:16:52,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:16:52,318 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 02:16:52,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:16:52,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123174707] [2023-08-29 02:16:52,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2123174707] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:16:52,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:16:52,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-29 02:16:52,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869710257] [2023-08-29 02:16:52,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:16:52,330 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-29 02:16:52,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:16:52,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-29 02:16:52,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-29 02:16:52,368 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 195 out of 355 [2023-08-29 02:16:52,373 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 73 transitions, 149 flow. Second operand has 2 states, 2 states have (on average 195.5) internal successors, (391), 2 states have internal predecessors, (391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:16:52,374 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:16:52,374 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 195 of 355 [2023-08-29 02:16:52,375 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:16:52,519 INFO L130 PetriNetUnfolder]: 78/405 cut-off events. [2023-08-29 02:16:52,519 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 02:16:52,525 INFO L83 FinitePrefix]: Finished finitePrefix Result has 587 conditions, 405 events. 78/405 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1925 event pairs, 78 based on Foata normal form. 0/364 useless extension candidates. Maximal degree in co-relation 578. Up to 178 conditions per place. [2023-08-29 02:16:52,529 INFO L137 encePairwiseOnDemand]: 347/355 looper letters, 21 selfloop transitions, 0 changer transitions 0/65 dead transitions. [2023-08-29 02:16:52,529 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 65 transitions, 175 flow [2023-08-29 02:16:52,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-29 02:16:52,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-29 02:16:52,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 419 transitions. [2023-08-29 02:16:52,549 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5901408450704225 [2023-08-29 02:16:52,550 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 419 transitions. [2023-08-29 02:16:52,551 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 419 transitions. [2023-08-29 02:16:52,554 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:16:52,556 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 419 transitions. [2023-08-29 02:16:52,561 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 209.5) internal successors, (419), 2 states have internal predecessors, (419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:16:52,565 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 355.0) internal successors, (1065), 3 states have internal predecessors, (1065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:16:52,566 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 355.0) internal successors, (1065), 3 states have internal predecessors, (1065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:16:52,568 INFO L175 Difference]: Start difference. First operand has 77 places, 73 transitions, 149 flow. Second operand 2 states and 419 transitions. [2023-08-29 02:16:52,568 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 65 transitions, 175 flow [2023-08-29 02:16:52,571 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 02:16:52,573 INFO L231 Difference]: Finished difference. Result has 69 places, 65 transitions, 132 flow [2023-08-29 02:16:52,575 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=355, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=132, PETRI_PLACES=69, PETRI_TRANSITIONS=65} [2023-08-29 02:16:52,579 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, -8 predicate places. [2023-08-29 02:16:52,582 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 65 transitions, 132 flow [2023-08-29 02:16:52,582 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 195.5) internal successors, (391), 2 states have internal predecessors, (391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:16:52,583 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:16:52,583 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-29 02:16:52,583 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-29 02:16:52,584 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 02:16:52,585 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:16:52,585 INFO L85 PathProgramCache]: Analyzing trace with hash 616433557, now seen corresponding path program 1 times [2023-08-29 02:16:52,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:16:52,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78200842] [2023-08-29 02:16:52,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:16:52,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:16:52,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:16:52,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:16:52,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:16:52,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78200842] [2023-08-29 02:16:52,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78200842] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:16:52,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:16:52,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 02:16:52,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113314793] [2023-08-29 02:16:52,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:16:52,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 02:16:52,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:16:52,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 02:16:52,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 02:16:52,891 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 179 out of 355 [2023-08-29 02:16:52,892 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 65 transitions, 132 flow. Second operand has 3 states, 3 states have (on average 180.66666666666666) internal successors, (542), 3 states have internal predecessors, (542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:16:52,892 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:16:52,892 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 179 of 355 [2023-08-29 02:16:52,892 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:16:52,978 INFO L130 PetriNetUnfolder]: 119/489 cut-off events. [2023-08-29 02:16:52,978 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 02:16:52,979 INFO L83 FinitePrefix]: Finished finitePrefix Result has 758 conditions, 489 events. 119/489 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 2334 event pairs, 119 based on Foata normal form. 0/466 useless extension candidates. Maximal degree in co-relation 755. Up to 264 conditions per place. [2023-08-29 02:16:52,980 INFO L137 encePairwiseOnDemand]: 351/355 looper letters, 25 selfloop transitions, 1 changer transitions 0/62 dead transitions. [2023-08-29 02:16:52,980 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 62 transitions, 178 flow [2023-08-29 02:16:52,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 02:16:52,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 02:16:52,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 566 transitions. [2023-08-29 02:16:52,983 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5314553990610329 [2023-08-29 02:16:52,983 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 566 transitions. [2023-08-29 02:16:52,983 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 566 transitions. [2023-08-29 02:16:52,983 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:16:52,984 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 566 transitions. [2023-08-29 02:16:52,985 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 188.66666666666666) internal successors, (566), 3 states have internal predecessors, (566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:16:52,988 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 355.0) internal successors, (1420), 4 states have internal predecessors, (1420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:16:52,988 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 355.0) internal successors, (1420), 4 states have internal predecessors, (1420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:16:52,988 INFO L175 Difference]: Start difference. First operand has 69 places, 65 transitions, 132 flow. Second operand 3 states and 566 transitions. [2023-08-29 02:16:52,989 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 62 transitions, 178 flow [2023-08-29 02:16:52,989 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 02:16:52,990 INFO L231 Difference]: Finished difference. Result has 68 places, 62 transitions, 128 flow [2023-08-29 02:16:52,991 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=355, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=128, PETRI_PLACES=68, PETRI_TRANSITIONS=62} [2023-08-29 02:16:52,991 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, -9 predicate places. [2023-08-29 02:16:52,992 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 62 transitions, 128 flow [2023-08-29 02:16:52,992 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 180.66666666666666) internal successors, (542), 3 states have internal predecessors, (542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:16:52,992 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:16:52,992 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:16:52,993 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-29 02:16:52,993 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 02:16:52,993 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:16:52,994 INFO L85 PathProgramCache]: Analyzing trace with hash -1088761223, now seen corresponding path program 1 times [2023-08-29 02:16:52,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:16:52,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953474923] [2023-08-29 02:16:52,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:16:52,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:16:53,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:16:53,537 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 02:16:53,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:16:53,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953474923] [2023-08-29 02:16:53,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953474923] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:16:53,538 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:16:53,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 02:16:53,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853372801] [2023-08-29 02:16:53,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:16:53,539 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 02:16:53,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:16:53,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 02:16:53,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 02:16:53,790 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 355 [2023-08-29 02:16:53,791 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 62 transitions, 128 flow. Second operand has 6 states, 6 states have (on average 146.5) internal successors, (879), 6 states have internal predecessors, (879), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:16:53,791 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:16:53,792 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 355 [2023-08-29 02:16:53,792 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:16:54,165 INFO L130 PetriNetUnfolder]: 419/1084 cut-off events. [2023-08-29 02:16:54,166 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 02:16:54,167 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1976 conditions, 1084 events. 419/1084 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 5342 event pairs, 312 based on Foata normal form. 0/1039 useless extension candidates. Maximal degree in co-relation 1972. Up to 802 conditions per place. [2023-08-29 02:16:54,172 INFO L137 encePairwiseOnDemand]: 341/355 looper letters, 66 selfloop transitions, 37 changer transitions 0/122 dead transitions. [2023-08-29 02:16:54,172 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 122 transitions, 454 flow [2023-08-29 02:16:54,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 02:16:54,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 02:16:54,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 974 transitions. [2023-08-29 02:16:54,175 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4572769953051643 [2023-08-29 02:16:54,175 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 974 transitions. [2023-08-29 02:16:54,175 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 974 transitions. [2023-08-29 02:16:54,176 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:16:54,176 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 974 transitions. [2023-08-29 02:16:54,178 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 162.33333333333334) internal successors, (974), 6 states have internal predecessors, (974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:16:54,181 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 355.0) internal successors, (2485), 7 states have internal predecessors, (2485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:16:54,182 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 355.0) internal successors, (2485), 7 states have internal predecessors, (2485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:16:54,182 INFO L175 Difference]: Start difference. First operand has 68 places, 62 transitions, 128 flow. Second operand 6 states and 974 transitions. [2023-08-29 02:16:54,183 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 122 transitions, 454 flow [2023-08-29 02:16:54,184 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 02:16:54,186 INFO L231 Difference]: Finished difference. Result has 76 places, 98 transitions, 339 flow [2023-08-29 02:16:54,187 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=355, PETRI_DIFFERENCE_MINUEND_FLOW=127, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=339, PETRI_PLACES=76, PETRI_TRANSITIONS=98} [2023-08-29 02:16:54,188 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, -1 predicate places. [2023-08-29 02:16:54,188 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 98 transitions, 339 flow [2023-08-29 02:16:54,189 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 146.5) internal successors, (879), 6 states have internal predecessors, (879), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:16:54,189 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:16:54,189 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:16:54,189 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-29 02:16:54,189 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 02:16:54,190 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:16:54,190 INFO L85 PathProgramCache]: Analyzing trace with hash -80791827, now seen corresponding path program 1 times [2023-08-29 02:16:54,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:16:54,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686231642] [2023-08-29 02:16:54,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:16:54,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:16:54,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:16:54,583 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 02:16:54,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:16:54,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686231642] [2023-08-29 02:16:54,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686231642] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:16:54,584 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:16:54,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 02:16:54,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847763818] [2023-08-29 02:16:54,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:16:54,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 02:16:54,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:16:54,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 02:16:54,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 02:16:54,818 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 355 [2023-08-29 02:16:54,819 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 98 transitions, 339 flow. Second operand has 6 states, 6 states have (on average 144.5) internal successors, (867), 6 states have internal predecessors, (867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:16:54,819 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:16:54,819 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 355 [2023-08-29 02:16:54,819 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:16:55,383 INFO L130 PetriNetUnfolder]: 622/1669 cut-off events. [2023-08-29 02:16:55,383 INFO L131 PetriNetUnfolder]: For 233/246 co-relation queries the response was YES. [2023-08-29 02:16:55,387 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3630 conditions, 1669 events. 622/1669 cut-off events. For 233/246 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 9976 event pairs, 78 based on Foata normal form. 0/1574 useless extension candidates. Maximal degree in co-relation 3622. Up to 707 conditions per place. [2023-08-29 02:16:55,393 INFO L137 encePairwiseOnDemand]: 327/355 looper letters, 135 selfloop transitions, 77 changer transitions 0/246 dead transitions. [2023-08-29 02:16:55,393 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 246 transitions, 1150 flow [2023-08-29 02:16:55,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 02:16:55,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 02:16:55,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1048 transitions. [2023-08-29 02:16:55,397 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.492018779342723 [2023-08-29 02:16:55,397 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1048 transitions. [2023-08-29 02:16:55,397 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1048 transitions. [2023-08-29 02:16:55,398 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:16:55,398 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1048 transitions. [2023-08-29 02:16:55,400 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 174.66666666666666) internal successors, (1048), 6 states have internal predecessors, (1048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:16:55,403 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 355.0) internal successors, (2485), 7 states have internal predecessors, (2485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:16:55,405 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 355.0) internal successors, (2485), 7 states have internal predecessors, (2485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:16:55,405 INFO L175 Difference]: Start difference. First operand has 76 places, 98 transitions, 339 flow. Second operand 6 states and 1048 transitions. [2023-08-29 02:16:55,405 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 246 transitions, 1150 flow [2023-08-29 02:16:55,410 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 02:16:55,413 INFO L231 Difference]: Finished difference. Result has 85 places, 171 transitions, 913 flow [2023-08-29 02:16:55,413 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=355, PETRI_DIFFERENCE_MINUEND_FLOW=337, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=913, PETRI_PLACES=85, PETRI_TRANSITIONS=171} [2023-08-29 02:16:55,414 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 8 predicate places. [2023-08-29 02:16:55,414 INFO L495 AbstractCegarLoop]: Abstraction has has 85 places, 171 transitions, 913 flow [2023-08-29 02:16:55,415 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 02:16:55,415 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:16:55,415 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:16:55,416 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-29 02:16:55,416 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 02:16:55,416 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:16:55,416 INFO L85 PathProgramCache]: Analyzing trace with hash -1863694665, now seen corresponding path program 1 times [2023-08-29 02:16:55,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:16:55,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811852872] [2023-08-29 02:16:55,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:16:55,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:16:55,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:16:55,930 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 02:16:55,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:16:55,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811852872] [2023-08-29 02:16:55,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811852872] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:16:55,931 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:16:55,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 02:16:55,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108479450] [2023-08-29 02:16:55,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:16:55,932 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 02:16:55,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:16:55,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 02:16:55,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-08-29 02:16:56,691 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 355 [2023-08-29 02:16:56,693 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 171 transitions, 913 flow. Second operand has 10 states, 10 states have (on average 142.2) internal successors, (1422), 10 states have internal predecessors, (1422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:16:56,693 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:16:56,693 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 355 [2023-08-29 02:16:56,693 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:16:57,515 INFO L130 PetriNetUnfolder]: 743/1912 cut-off events. [2023-08-29 02:16:57,515 INFO L131 PetriNetUnfolder]: For 1441/1449 co-relation queries the response was YES. [2023-08-29 02:16:57,520 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5654 conditions, 1912 events. 743/1912 cut-off events. For 1441/1449 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 11380 event pairs, 245 based on Foata normal form. 0/1845 useless extension candidates. Maximal degree in co-relation 5641. Up to 1219 conditions per place. [2023-08-29 02:16:57,528 INFO L137 encePairwiseOnDemand]: 341/355 looper letters, 235 selfloop transitions, 64 changer transitions 2/335 dead transitions. [2023-08-29 02:16:57,528 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 335 transitions, 2307 flow [2023-08-29 02:16:57,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-08-29 02:16:57,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-08-29 02:16:57,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2303 transitions. [2023-08-29 02:16:57,536 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4324882629107981 [2023-08-29 02:16:57,536 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2303 transitions. [2023-08-29 02:16:57,536 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2303 transitions. [2023-08-29 02:16:57,537 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:16:57,537 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2303 transitions. [2023-08-29 02:16:57,541 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 153.53333333333333) internal successors, (2303), 15 states have internal predecessors, (2303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:16:57,548 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 355.0) internal successors, (5680), 16 states have internal predecessors, (5680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:16:57,549 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 355.0) internal successors, (5680), 16 states have internal predecessors, (5680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:16:57,550 INFO L175 Difference]: Start difference. First operand has 85 places, 171 transitions, 913 flow. Second operand 15 states and 2303 transitions. [2023-08-29 02:16:57,550 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 335 transitions, 2307 flow [2023-08-29 02:16:57,559 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 02:16:57,566 INFO L231 Difference]: Finished difference. Result has 104 places, 203 transitions, 1299 flow [2023-08-29 02:16:57,567 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=355, PETRI_DIFFERENCE_MINUEND_FLOW=895, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=171, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=1299, PETRI_PLACES=104, PETRI_TRANSITIONS=203} [2023-08-29 02:16:57,569 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 27 predicate places. [2023-08-29 02:16:57,570 INFO L495 AbstractCegarLoop]: Abstraction has has 104 places, 203 transitions, 1299 flow [2023-08-29 02:16:57,573 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 142.2) internal successors, (1422), 10 states have internal predecessors, (1422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:16:57,573 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:16:57,573 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:16:57,573 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-29 02:16:57,573 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 02:16:57,574 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:16:57,574 INFO L85 PathProgramCache]: Analyzing trace with hash -1676920082, now seen corresponding path program 1 times [2023-08-29 02:16:57,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:16:57,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962259790] [2023-08-29 02:16:57,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:16:57,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:16:57,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:16:58,175 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 02:16:58,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:16:58,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962259790] [2023-08-29 02:16:58,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1962259790] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:16:58,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:16:58,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 02:16:58,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208292379] [2023-08-29 02:16:58,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:16:58,176 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 02:16:58,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:16:58,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 02:16:58,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-08-29 02:16:58,824 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 139 out of 355 [2023-08-29 02:16:58,826 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 203 transitions, 1299 flow. Second operand has 10 states, 10 states have (on average 140.2) internal successors, (1402), 10 states have internal predecessors, (1402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:16:58,826 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:16:58,826 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 139 of 355 [2023-08-29 02:16:58,826 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:16:59,950 INFO L130 PetriNetUnfolder]: 774/2149 cut-off events. [2023-08-29 02:16:59,950 INFO L131 PetriNetUnfolder]: For 2144/2181 co-relation queries the response was YES. [2023-08-29 02:16:59,957 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6872 conditions, 2149 events. 774/2149 cut-off events. For 2144/2181 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 14321 event pairs, 93 based on Foata normal form. 19/2091 useless extension candidates. Maximal degree in co-relation 6853. Up to 622 conditions per place. [2023-08-29 02:16:59,966 INFO L137 encePairwiseOnDemand]: 323/355 looper letters, 261 selfloop transitions, 121 changer transitions 2/424 dead transitions. [2023-08-29 02:16:59,966 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 424 transitions, 3169 flow [2023-08-29 02:16:59,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-29 02:16:59,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-29 02:16:59,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1960 transitions. [2023-08-29 02:16:59,971 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.460093896713615 [2023-08-29 02:16:59,971 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1960 transitions. [2023-08-29 02:16:59,971 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1960 transitions. [2023-08-29 02:16:59,972 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:16:59,972 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1960 transitions. [2023-08-29 02:16:59,976 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 163.33333333333334) internal successors, (1960), 12 states have internal predecessors, (1960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:16:59,981 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 355.0) internal successors, (4615), 13 states have internal predecessors, (4615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:16:59,982 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 355.0) internal successors, (4615), 13 states have internal predecessors, (4615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:16:59,982 INFO L175 Difference]: Start difference. First operand has 104 places, 203 transitions, 1299 flow. Second operand 12 states and 1960 transitions. [2023-08-29 02:16:59,982 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 424 transitions, 3169 flow [2023-08-29 02:17:00,024 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 02:17:00,031 INFO L231 Difference]: Finished difference. Result has 125 places, 258 transitions, 2206 flow [2023-08-29 02:17:00,032 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=355, PETRI_DIFFERENCE_MINUEND_FLOW=1293, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=203, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=67, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2206, PETRI_PLACES=125, PETRI_TRANSITIONS=258} [2023-08-29 02:17:00,034 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 48 predicate places. [2023-08-29 02:17:00,034 INFO L495 AbstractCegarLoop]: Abstraction has has 125 places, 258 transitions, 2206 flow [2023-08-29 02:17:00,035 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 02:17:00,035 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:17:00,036 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:17:00,036 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-29 02:17:00,036 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 02:17:00,036 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:17:00,037 INFO L85 PathProgramCache]: Analyzing trace with hash -1311471964, now seen corresponding path program 2 times [2023-08-29 02:17:00,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:17:00,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747201472] [2023-08-29 02:17:00,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:17:00,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:17:00,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:17:00,509 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 02:17:00,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:17:00,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747201472] [2023-08-29 02:17:00,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1747201472] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:17:00,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:17:00,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 02:17:00,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942657152] [2023-08-29 02:17:00,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:17:00,511 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 02:17:00,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:17:00,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 02:17:00,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-08-29 02:17:01,318 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 139 out of 355 [2023-08-29 02:17:01,320 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 258 transitions, 2206 flow. Second operand has 10 states, 10 states have (on average 140.2) internal successors, (1402), 10 states have internal predecessors, (1402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:17:01,320 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:17:01,320 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 139 of 355 [2023-08-29 02:17:01,320 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:17:02,372 INFO L130 PetriNetUnfolder]: 828/2278 cut-off events. [2023-08-29 02:17:02,372 INFO L131 PetriNetUnfolder]: For 4686/4719 co-relation queries the response was YES. [2023-08-29 02:17:02,381 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8608 conditions, 2278 events. 828/2278 cut-off events. For 4686/4719 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 15226 event pairs, 95 based on Foata normal form. 24/2210 useless extension candidates. Maximal degree in co-relation 8579. Up to 722 conditions per place. [2023-08-29 02:17:02,392 INFO L137 encePairwiseOnDemand]: 330/355 looper letters, 336 selfloop transitions, 116 changer transitions 3/495 dead transitions. [2023-08-29 02:17:02,393 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 495 transitions, 4591 flow [2023-08-29 02:17:02,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-08-29 02:17:02,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-08-29 02:17:02,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2779 transitions. [2023-08-29 02:17:02,402 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4348982785602504 [2023-08-29 02:17:02,403 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2779 transitions. [2023-08-29 02:17:02,403 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2779 transitions. [2023-08-29 02:17:02,404 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:17:02,404 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2779 transitions. [2023-08-29 02:17:02,411 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 154.38888888888889) internal successors, (2779), 18 states have internal predecessors, (2779), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:17:02,421 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 355.0) internal successors, (6745), 19 states have internal predecessors, (6745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:17:02,422 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 355.0) internal successors, (6745), 19 states have internal predecessors, (6745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:17:02,422 INFO L175 Difference]: Start difference. First operand has 125 places, 258 transitions, 2206 flow. Second operand 18 states and 2779 transitions. [2023-08-29 02:17:02,423 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 495 transitions, 4591 flow [2023-08-29 02:17:02,461 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 495 transitions, 4579 flow, removed 6 selfloop flow, removed 0 redundant places. [2023-08-29 02:17:02,467 INFO L231 Difference]: Finished difference. Result has 148 places, 301 transitions, 2975 flow [2023-08-29 02:17:02,468 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=355, PETRI_DIFFERENCE_MINUEND_FLOW=2194, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=258, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=74, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=152, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=2975, PETRI_PLACES=148, PETRI_TRANSITIONS=301} [2023-08-29 02:17:02,468 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 71 predicate places. [2023-08-29 02:17:02,468 INFO L495 AbstractCegarLoop]: Abstraction has has 148 places, 301 transitions, 2975 flow [2023-08-29 02:17:02,469 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 02:17:02,469 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:17:02,469 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:17:02,470 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-29 02:17:02,470 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 02:17:02,470 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:17:02,470 INFO L85 PathProgramCache]: Analyzing trace with hash -1375559064, now seen corresponding path program 3 times [2023-08-29 02:17:02,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:17:02,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489443572] [2023-08-29 02:17:02,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:17:02,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:17:02,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:17:02,931 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 02:17:02,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:17:02,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489443572] [2023-08-29 02:17:02,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1489443572] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:17:02,932 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:17:02,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 02:17:02,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020484912] [2023-08-29 02:17:02,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:17:02,932 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 02:17:02,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:17:02,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 02:17:02,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-08-29 02:17:03,451 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 139 out of 355 [2023-08-29 02:17:03,452 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 301 transitions, 2975 flow. Second operand has 10 states, 10 states have (on average 140.2) internal successors, (1402), 10 states have internal predecessors, (1402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:17:03,452 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:17:03,452 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 139 of 355 [2023-08-29 02:17:03,452 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:17:04,883 INFO L130 PetriNetUnfolder]: 1106/3046 cut-off events. [2023-08-29 02:17:04,883 INFO L131 PetriNetUnfolder]: For 9601/9670 co-relation queries the response was YES. [2023-08-29 02:17:04,897 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12829 conditions, 3046 events. 1106/3046 cut-off events. For 9601/9670 co-relation queries the response was YES. Maximal size of possible extension queue 110. Compared 22626 event pairs, 106 based on Foata normal form. 34/2962 useless extension candidates. Maximal degree in co-relation 12794. Up to 884 conditions per place. [2023-08-29 02:17:04,914 INFO L137 encePairwiseOnDemand]: 323/355 looper letters, 317 selfloop transitions, 207 changer transitions 3/567 dead transitions. [2023-08-29 02:17:04,915 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 567 transitions, 5926 flow [2023-08-29 02:17:04,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-08-29 02:17:04,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-08-29 02:17:04,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2690 transitions. [2023-08-29 02:17:04,922 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44573322286661143 [2023-08-29 02:17:04,922 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2690 transitions. [2023-08-29 02:17:04,922 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2690 transitions. [2023-08-29 02:17:04,923 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:17:04,924 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2690 transitions. [2023-08-29 02:17:04,928 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 158.23529411764707) internal successors, (2690), 17 states have internal predecessors, (2690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:17:04,936 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 355.0) internal successors, (6390), 18 states have internal predecessors, (6390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:17:04,938 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 355.0) internal successors, (6390), 18 states have internal predecessors, (6390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:17:04,938 INFO L175 Difference]: Start difference. First operand has 148 places, 301 transitions, 2975 flow. Second operand 17 states and 2690 transitions. [2023-08-29 02:17:04,938 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 164 places, 567 transitions, 5926 flow [2023-08-29 02:17:04,992 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 163 places, 567 transitions, 5916 flow, removed 3 selfloop flow, removed 1 redundant places. [2023-08-29 02:17:05,002 INFO L231 Difference]: Finished difference. Result has 174 places, 381 transitions, 4825 flow [2023-08-29 02:17:05,003 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=355, PETRI_DIFFERENCE_MINUEND_FLOW=2965, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=301, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=127, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=4825, PETRI_PLACES=174, PETRI_TRANSITIONS=381} [2023-08-29 02:17:05,005 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 97 predicate places. [2023-08-29 02:17:05,005 INFO L495 AbstractCegarLoop]: Abstraction has has 174 places, 381 transitions, 4825 flow [2023-08-29 02:17:05,006 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 02:17:05,006 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:17:05,006 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:17:05,006 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-29 02:17:05,007 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 02:17:05,011 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:17:05,011 INFO L85 PathProgramCache]: Analyzing trace with hash -1412577812, now seen corresponding path program 4 times [2023-08-29 02:17:05,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:17:05,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686585037] [2023-08-29 02:17:05,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:17:05,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:17:05,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:17:05,478 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 02:17:05,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:17:05,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686585037] [2023-08-29 02:17:05,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686585037] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:17:05,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:17:05,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 02:17:05,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531788455] [2023-08-29 02:17:05,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:17:05,485 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 02:17:05,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:17:05,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 02:17:05,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-08-29 02:17:06,462 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 139 out of 355 [2023-08-29 02:17:06,463 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 174 places, 381 transitions, 4825 flow. Second operand has 10 states, 10 states have (on average 140.2) internal successors, (1402), 10 states have internal predecessors, (1402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:17:06,463 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:17:06,463 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 139 of 355 [2023-08-29 02:17:06,463 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:17:08,189 INFO L130 PetriNetUnfolder]: 1403/3870 cut-off events. [2023-08-29 02:17:08,190 INFO L131 PetriNetUnfolder]: For 19855/19987 co-relation queries the response was YES. [2023-08-29 02:17:08,210 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18124 conditions, 3870 events. 1403/3870 cut-off events. For 19855/19987 co-relation queries the response was YES. Maximal size of possible extension queue 150. Compared 30877 event pairs, 247 based on Foata normal form. 72/3789 useless extension candidates. Maximal degree in co-relation 18077. Up to 882 conditions per place. [2023-08-29 02:17:08,228 INFO L137 encePairwiseOnDemand]: 323/355 looper letters, 365 selfloop transitions, 238 changer transitions 2/645 dead transitions. [2023-08-29 02:17:08,228 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 187 places, 645 transitions, 8337 flow [2023-08-29 02:17:08,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-29 02:17:08,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-29 02:17:08,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2258 transitions. [2023-08-29 02:17:08,234 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45432595573440643 [2023-08-29 02:17:08,234 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2258 transitions. [2023-08-29 02:17:08,235 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2258 transitions. [2023-08-29 02:17:08,236 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:17:08,236 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2258 transitions. [2023-08-29 02:17:08,240 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 161.28571428571428) internal successors, (2258), 14 states have internal predecessors, (2258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:17:08,247 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 355.0) internal successors, (5325), 15 states have internal predecessors, (5325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:17:08,248 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 355.0) internal successors, (5325), 15 states have internal predecessors, (5325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:17:08,248 INFO L175 Difference]: Start difference. First operand has 174 places, 381 transitions, 4825 flow. Second operand 14 states and 2258 transitions. [2023-08-29 02:17:08,248 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 187 places, 645 transitions, 8337 flow [2023-08-29 02:17:08,391 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 183 places, 645 transitions, 8247 flow, removed 36 selfloop flow, removed 4 redundant places. [2023-08-29 02:17:08,400 INFO L231 Difference]: Finished difference. Result has 195 places, 460 transitions, 6983 flow [2023-08-29 02:17:08,401 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=355, PETRI_DIFFERENCE_MINUEND_FLOW=4754, PETRI_DIFFERENCE_MINUEND_PLACES=170, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=381, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=160, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=171, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=6983, PETRI_PLACES=195, PETRI_TRANSITIONS=460} [2023-08-29 02:17:08,403 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 118 predicate places. [2023-08-29 02:17:08,403 INFO L495 AbstractCegarLoop]: Abstraction has has 195 places, 460 transitions, 6983 flow [2023-08-29 02:17:08,404 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 02:17:08,404 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:17:08,404 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:17:08,404 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-29 02:17:08,404 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 02:17:08,405 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:17:08,405 INFO L85 PathProgramCache]: Analyzing trace with hash 1902450344, now seen corresponding path program 5 times [2023-08-29 02:17:08,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:17:08,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840773420] [2023-08-29 02:17:08,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:17:08,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:17:08,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:17:08,837 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 02:17:08,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:17:08,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840773420] [2023-08-29 02:17:08,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1840773420] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:17:08,838 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:17:08,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 02:17:08,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823619106] [2023-08-29 02:17:08,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:17:08,839 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 02:17:08,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:17:08,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 02:17:08,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-08-29 02:17:09,427 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 139 out of 355 [2023-08-29 02:17:09,428 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 195 places, 460 transitions, 6983 flow. Second operand has 10 states, 10 states have (on average 140.2) internal successors, (1402), 10 states have internal predecessors, (1402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:17:09,428 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:17:09,428 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 139 of 355 [2023-08-29 02:17:09,428 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:17:10,950 INFO L130 PetriNetUnfolder]: 1727/4752 cut-off events. [2023-08-29 02:17:10,950 INFO L131 PetriNetUnfolder]: For 35507/35745 co-relation queries the response was YES. [2023-08-29 02:17:10,983 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24390 conditions, 4752 events. 1727/4752 cut-off events. For 35507/35745 co-relation queries the response was YES. Maximal size of possible extension queue 182. Compared 39898 event pairs, 170 based on Foata normal form. 137/4694 useless extension candidates. Maximal degree in co-relation 24332. Up to 1081 conditions per place. [2023-08-29 02:17:11,069 INFO L137 encePairwiseOnDemand]: 323/355 looper letters, 451 selfloop transitions, 307 changer transitions 3/801 dead transitions. [2023-08-29 02:17:11,069 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 210 places, 801 transitions, 12065 flow [2023-08-29 02:17:11,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-08-29 02:17:11,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-08-29 02:17:11,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2542 transitions. [2023-08-29 02:17:11,092 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44753521126760565 [2023-08-29 02:17:11,092 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 2542 transitions. [2023-08-29 02:17:11,092 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 2542 transitions. [2023-08-29 02:17:11,094 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:17:11,094 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 2542 transitions. [2023-08-29 02:17:11,100 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 158.875) internal successors, (2542), 16 states have internal predecessors, (2542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:17:11,107 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 355.0) internal successors, (6035), 17 states have internal predecessors, (6035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:17:11,108 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 355.0) internal successors, (6035), 17 states have internal predecessors, (6035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:17:11,108 INFO L175 Difference]: Start difference. First operand has 195 places, 460 transitions, 6983 flow. Second operand 16 states and 2542 transitions. [2023-08-29 02:17:11,108 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 210 places, 801 transitions, 12065 flow [2023-08-29 02:17:11,311 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 209 places, 801 transitions, 12018 flow, removed 14 selfloop flow, removed 1 redundant places. [2023-08-29 02:17:11,322 INFO L231 Difference]: Finished difference. Result has 219 places, 557 transitions, 9996 flow [2023-08-29 02:17:11,322 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=355, PETRI_DIFFERENCE_MINUEND_FLOW=6947, PETRI_DIFFERENCE_MINUEND_PLACES=194, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=460, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=221, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=184, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=9996, PETRI_PLACES=219, PETRI_TRANSITIONS=557} [2023-08-29 02:17:11,323 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 142 predicate places. [2023-08-29 02:17:11,323 INFO L495 AbstractCegarLoop]: Abstraction has has 219 places, 557 transitions, 9996 flow [2023-08-29 02:17:11,324 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 02:17:11,324 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:17:11,324 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:17:11,324 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-29 02:17:11,324 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 02:17:11,325 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:17:11,325 INFO L85 PathProgramCache]: Analyzing trace with hash -1150116754, now seen corresponding path program 6 times [2023-08-29 02:17:11,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:17:11,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978059677] [2023-08-29 02:17:11,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:17:11,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:17:11,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:17:11,746 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 02:17:11,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:17:11,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978059677] [2023-08-29 02:17:11,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [978059677] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:17:11,747 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:17:11,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 02:17:11,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748088533] [2023-08-29 02:17:11,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:17:11,747 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 02:17:11,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:17:11,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 02:17:11,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-08-29 02:17:12,696 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 139 out of 355 [2023-08-29 02:17:12,697 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 219 places, 557 transitions, 9996 flow. Second operand has 10 states, 10 states have (on average 140.2) internal successors, (1402), 10 states have internal predecessors, (1402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:17:12,697 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:17:12,697 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 139 of 355 [2023-08-29 02:17:12,697 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:17:14,663 INFO L130 PetriNetUnfolder]: 2122/5818 cut-off events. [2023-08-29 02:17:14,663 INFO L131 PetriNetUnfolder]: For 60696/60990 co-relation queries the response was YES. [2023-08-29 02:17:14,695 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32576 conditions, 5818 events. 2122/5818 cut-off events. For 60696/60990 co-relation queries the response was YES. Maximal size of possible extension queue 226. Compared 51211 event pairs, 298 based on Foata normal form. 154/5736 useless extension candidates. Maximal degree in co-relation 32508. Up to 1300 conditions per place. [2023-08-29 02:17:14,723 INFO L137 encePairwiseOnDemand]: 323/355 looper letters, 467 selfloop transitions, 361 changer transitions 2/870 dead transitions. [2023-08-29 02:17:14,723 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 232 places, 870 transitions, 15370 flow [2023-08-29 02:17:14,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-29 02:17:14,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-29 02:17:14,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2246 transitions. [2023-08-29 02:17:14,728 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45191146881287725 [2023-08-29 02:17:14,728 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2246 transitions. [2023-08-29 02:17:14,728 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2246 transitions. [2023-08-29 02:17:14,729 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:17:14,729 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2246 transitions. [2023-08-29 02:17:14,732 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 160.42857142857142) internal successors, (2246), 14 states have internal predecessors, (2246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:17:14,739 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 355.0) internal successors, (5325), 15 states have internal predecessors, (5325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:17:14,739 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 355.0) internal successors, (5325), 15 states have internal predecessors, (5325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:17:14,740 INFO L175 Difference]: Start difference. First operand has 219 places, 557 transitions, 9996 flow. Second operand 14 states and 2246 transitions. [2023-08-29 02:17:14,740 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 232 places, 870 transitions, 15370 flow [2023-08-29 02:17:15,199 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 228 places, 870 transitions, 15308 flow, removed 22 selfloop flow, removed 4 redundant places. [2023-08-29 02:17:15,214 INFO L231 Difference]: Finished difference. Result has 240 places, 656 transitions, 13507 flow [2023-08-29 02:17:15,215 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=355, PETRI_DIFFERENCE_MINUEND_FLOW=9950, PETRI_DIFFERENCE_MINUEND_PLACES=215, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=557, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=267, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=231, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=13507, PETRI_PLACES=240, PETRI_TRANSITIONS=656} [2023-08-29 02:17:15,216 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 163 predicate places. [2023-08-29 02:17:15,216 INFO L495 AbstractCegarLoop]: Abstraction has has 240 places, 656 transitions, 13507 flow [2023-08-29 02:17:15,216 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 02:17:15,217 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:17:15,217 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:17:15,217 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-29 02:17:15,217 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 02:17:15,217 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:17:15,218 INFO L85 PathProgramCache]: Analyzing trace with hash -1788471914, now seen corresponding path program 7 times [2023-08-29 02:17:15,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:17:15,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589116279] [2023-08-29 02:17:15,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:17:15,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:17:15,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:17:15,696 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 02:17:15,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:17:15,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589116279] [2023-08-29 02:17:15,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1589116279] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:17:15,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:17:15,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 02:17:15,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585082681] [2023-08-29 02:17:15,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:17:15,698 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 02:17:15,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:17:15,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 02:17:15,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-08-29 02:17:16,305 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 139 out of 355 [2023-08-29 02:17:16,306 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 240 places, 656 transitions, 13507 flow. Second operand has 10 states, 10 states have (on average 140.2) internal successors, (1402), 10 states have internal predecessors, (1402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:17:16,306 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:17:16,306 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 139 of 355 [2023-08-29 02:17:16,306 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:17:18,609 INFO L130 PetriNetUnfolder]: 2330/6342 cut-off events. [2023-08-29 02:17:18,609 INFO L131 PetriNetUnfolder]: For 87958/88271 co-relation queries the response was YES. [2023-08-29 02:17:18,642 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38548 conditions, 6342 events. 2330/6342 cut-off events. For 87958/88271 co-relation queries the response was YES. Maximal size of possible extension queue 256. Compared 56939 event pairs, 315 based on Foata normal form. 186/6283 useless extension candidates. Maximal degree in co-relation 38469. Up to 1734 conditions per place. [2023-08-29 02:17:18,670 INFO L137 encePairwiseOnDemand]: 323/355 looper letters, 455 selfloop transitions, 435 changer transitions 3/933 dead transitions. [2023-08-29 02:17:18,671 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 257 places, 933 transitions, 18275 flow [2023-08-29 02:17:18,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-08-29 02:17:18,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-08-29 02:17:18,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2847 transitions. [2023-08-29 02:17:18,675 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44553990610328637 [2023-08-29 02:17:18,675 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2847 transitions. [2023-08-29 02:17:18,675 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2847 transitions. [2023-08-29 02:17:18,676 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:17:18,677 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2847 transitions. [2023-08-29 02:17:18,681 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 158.16666666666666) internal successors, (2847), 18 states have internal predecessors, (2847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:17:18,687 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 355.0) internal successors, (6745), 19 states have internal predecessors, (6745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:17:18,688 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 355.0) internal successors, (6745), 19 states have internal predecessors, (6745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:17:18,688 INFO L175 Difference]: Start difference. First operand has 240 places, 656 transitions, 13507 flow. Second operand 18 states and 2847 transitions. [2023-08-29 02:17:18,688 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 257 places, 933 transitions, 18275 flow [2023-08-29 02:17:19,265 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 257 places, 933 transitions, 18209 flow, removed 33 selfloop flow, removed 0 redundant places. [2023-08-29 02:17:19,280 INFO L231 Difference]: Finished difference. Result has 269 places, 717 transitions, 16715 flow [2023-08-29 02:17:19,281 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=355, PETRI_DIFFERENCE_MINUEND_FLOW=13453, PETRI_DIFFERENCE_MINUEND_PLACES=240, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=656, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=375, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=236, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=16715, PETRI_PLACES=269, PETRI_TRANSITIONS=717} [2023-08-29 02:17:19,281 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 192 predicate places. [2023-08-29 02:17:19,282 INFO L495 AbstractCegarLoop]: Abstraction has has 269 places, 717 transitions, 16715 flow [2023-08-29 02:17:19,283 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 02:17:19,283 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:17:19,283 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:17:19,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-29 02:17:19,283 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 02:17:19,284 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:17:19,284 INFO L85 PathProgramCache]: Analyzing trace with hash 2040545132, now seen corresponding path program 8 times [2023-08-29 02:17:19,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:17:19,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37632503] [2023-08-29 02:17:19,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:17:19,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:17:19,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:17:19,753 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 02:17:19,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:17:19,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37632503] [2023-08-29 02:17:19,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [37632503] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:17:19,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:17:19,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 02:17:19,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012000397] [2023-08-29 02:17:19,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:17:19,754 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 02:17:19,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:17:19,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 02:17:19,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-08-29 02:17:20,465 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 139 out of 355 [2023-08-29 02:17:20,467 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 269 places, 717 transitions, 16715 flow. Second operand has 10 states, 10 states have (on average 140.2) internal successors, (1402), 10 states have internal predecessors, (1402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:17:20,467 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:17:20,467 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 139 of 355 [2023-08-29 02:17:20,467 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:17:22,980 INFO L130 PetriNetUnfolder]: 2654/7280 cut-off events. [2023-08-29 02:17:22,980 INFO L131 PetriNetUnfolder]: For 128521/129053 co-relation queries the response was YES. [2023-08-29 02:17:23,037 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47158 conditions, 7280 events. 2654/7280 cut-off events. For 128521/129053 co-relation queries the response was YES. Maximal size of possible extension queue 296. Compared 67762 event pairs, 381 based on Foata normal form. 303/7282 useless extension candidates. Maximal degree in co-relation 47066. Up to 1759 conditions per place. [2023-08-29 02:17:23,071 INFO L137 encePairwiseOnDemand]: 323/355 looper letters, 558 selfloop transitions, 440 changer transitions 2/1040 dead transitions. [2023-08-29 02:17:23,071 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 282 places, 1040 transitions, 23358 flow [2023-08-29 02:17:23,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-29 02:17:23,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-29 02:17:23,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2233 transitions. [2023-08-29 02:17:23,077 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44929577464788734 [2023-08-29 02:17:23,077 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2233 transitions. [2023-08-29 02:17:23,077 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2233 transitions. [2023-08-29 02:17:23,078 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:17:23,078 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2233 transitions. [2023-08-29 02:17:23,081 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 159.5) internal successors, (2233), 14 states have internal predecessors, (2233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:17:23,086 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 355.0) internal successors, (5325), 15 states have internal predecessors, (5325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:17:23,086 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 355.0) internal successors, (5325), 15 states have internal predecessors, (5325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:17:23,087 INFO L175 Difference]: Start difference. First operand has 269 places, 717 transitions, 16715 flow. Second operand 14 states and 2233 transitions. [2023-08-29 02:17:23,087 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 282 places, 1040 transitions, 23358 flow [2023-08-29 02:17:24,125 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 279 places, 1040 transitions, 23222 flow, removed 37 selfloop flow, removed 3 redundant places. [2023-08-29 02:17:24,142 INFO L231 Difference]: Finished difference. Result has 291 places, 810 transitions, 20902 flow [2023-08-29 02:17:24,142 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=355, PETRI_DIFFERENCE_MINUEND_FLOW=16603, PETRI_DIFFERENCE_MINUEND_PLACES=266, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=717, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=351, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=306, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=20902, PETRI_PLACES=291, PETRI_TRANSITIONS=810} [2023-08-29 02:17:24,143 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 214 predicate places. [2023-08-29 02:17:24,143 INFO L495 AbstractCegarLoop]: Abstraction has has 291 places, 810 transitions, 20902 flow [2023-08-29 02:17:24,143 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 02:17:24,144 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:17:24,144 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:17:24,144 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-29 02:17:24,144 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 02:17:24,144 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:17:24,144 INFO L85 PathProgramCache]: Analyzing trace with hash 2124690030, now seen corresponding path program 9 times [2023-08-29 02:17:24,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:17:24,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122458703] [2023-08-29 02:17:24,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:17:24,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:17:24,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:17:24,532 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 02:17:24,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:17:24,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122458703] [2023-08-29 02:17:24,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122458703] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:17:24,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:17:24,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 02:17:24,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018182706] [2023-08-29 02:17:24,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:17:24,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 02:17:24,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:17:24,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 02:17:24,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-08-29 02:17:25,036 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 139 out of 355 [2023-08-29 02:17:25,037 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 291 places, 810 transitions, 20902 flow. Second operand has 10 states, 10 states have (on average 140.2) internal successors, (1402), 10 states have internal predecessors, (1402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:17:25,037 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:17:25,037 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 139 of 355 [2023-08-29 02:17:25,037 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:17:27,975 INFO L130 PetriNetUnfolder]: 2808/7720 cut-off events. [2023-08-29 02:17:27,975 INFO L131 PetriNetUnfolder]: For 164868/165458 co-relation queries the response was YES. [2023-08-29 02:17:28,031 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52746 conditions, 7720 events. 2808/7720 cut-off events. For 164868/165458 co-relation queries the response was YES. Maximal size of possible extension queue 320. Compared 73040 event pairs, 333 based on Foata normal form. 358/7753 useless extension candidates. Maximal degree in co-relation 52644. Up to 1859 conditions per place. [2023-08-29 02:17:28,059 INFO L137 encePairwiseOnDemand]: 323/355 looper letters, 543 selfloop transitions, 517 changer transitions 3/1103 dead transitions. [2023-08-29 02:17:28,059 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 307 places, 1103 transitions, 26720 flow [2023-08-29 02:17:28,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-08-29 02:17:28,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-08-29 02:17:28,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2694 transitions. [2023-08-29 02:17:28,064 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4463960231980116 [2023-08-29 02:17:28,064 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2694 transitions. [2023-08-29 02:17:28,064 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2694 transitions. [2023-08-29 02:17:28,065 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:17:28,065 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2694 transitions. [2023-08-29 02:17:28,069 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 158.47058823529412) internal successors, (2694), 17 states have internal predecessors, (2694), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:17:28,075 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 355.0) internal successors, (6390), 18 states have internal predecessors, (6390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:17:28,076 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 355.0) internal successors, (6390), 18 states have internal predecessors, (6390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:17:28,076 INFO L175 Difference]: Start difference. First operand has 291 places, 810 transitions, 20902 flow. Second operand 17 states and 2694 transitions. [2023-08-29 02:17:28,076 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 307 places, 1103 transitions, 26720 flow [2023-08-29 02:17:29,227 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 307 places, 1103 transitions, 26638 flow, removed 41 selfloop flow, removed 0 redundant places. [2023-08-29 02:17:29,248 INFO L231 Difference]: Finished difference. Result has 318 places, 875 transitions, 24812 flow [2023-08-29 02:17:29,249 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=355, PETRI_DIFFERENCE_MINUEND_FLOW=20832, PETRI_DIFFERENCE_MINUEND_PLACES=291, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=810, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=452, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=305, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=24812, PETRI_PLACES=318, PETRI_TRANSITIONS=875} [2023-08-29 02:17:29,249 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 241 predicate places. [2023-08-29 02:17:29,249 INFO L495 AbstractCegarLoop]: Abstraction has has 318 places, 875 transitions, 24812 flow [2023-08-29 02:17:29,250 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 02:17:29,250 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:17:29,250 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:17:29,250 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-29 02:17:29,250 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 02:17:29,253 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:17:29,253 INFO L85 PathProgramCache]: Analyzing trace with hash -2032182478, now seen corresponding path program 10 times [2023-08-29 02:17:29,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:17:29,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727809761] [2023-08-29 02:17:29,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:17:29,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:17:29,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:17:29,701 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 02:17:29,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:17:29,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727809761] [2023-08-29 02:17:29,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727809761] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:17:29,702 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:17:29,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 02:17:29,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847024439] [2023-08-29 02:17:29,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:17:29,703 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 02:17:29,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:17:29,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 02:17:29,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-08-29 02:17:30,286 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 139 out of 355 [2023-08-29 02:17:30,287 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 318 places, 875 transitions, 24812 flow. Second operand has 10 states, 10 states have (on average 140.2) internal successors, (1402), 10 states have internal predecessors, (1402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:17:30,287 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:17:30,288 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 139 of 355 [2023-08-29 02:17:30,288 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:17:33,943 INFO L130 PetriNetUnfolder]: 3029/8343 cut-off events. [2023-08-29 02:17:33,944 INFO L131 PetriNetUnfolder]: For 217740/218440 co-relation queries the response was YES. [2023-08-29 02:17:34,013 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60373 conditions, 8343 events. 3029/8343 cut-off events. For 217740/218440 co-relation queries the response was YES. Maximal size of possible extension queue 346. Compared 80240 event pairs, 421 based on Foata normal form. 442/8436 useless extension candidates. Maximal degree in co-relation 60259. Up to 2263 conditions per place. [2023-08-29 02:17:34,042 INFO L137 encePairwiseOnDemand]: 324/355 looper letters, 511 selfloop transitions, 594 changer transitions 2/1147 dead transitions. [2023-08-29 02:17:34,042 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 331 places, 1147 transitions, 31304 flow [2023-08-29 02:17:34,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-29 02:17:34,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-29 02:17:34,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2219 transitions. [2023-08-29 02:17:34,046 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44647887323943664 [2023-08-29 02:17:34,046 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2219 transitions. [2023-08-29 02:17:34,046 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2219 transitions. [2023-08-29 02:17:34,046 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:17:34,046 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2219 transitions. [2023-08-29 02:17:34,049 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 158.5) internal successors, (2219), 14 states have internal predecessors, (2219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:17:34,053 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 355.0) internal successors, (5325), 15 states have internal predecessors, (5325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:17:34,054 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 355.0) internal successors, (5325), 15 states have internal predecessors, (5325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:17:34,054 INFO L175 Difference]: Start difference. First operand has 318 places, 875 transitions, 24812 flow. Second operand 14 states and 2219 transitions. [2023-08-29 02:17:34,054 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 331 places, 1147 transitions, 31304 flow [2023-08-29 02:17:35,484 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 326 places, 1147 transitions, 31199 flow, removed 42 selfloop flow, removed 5 redundant places. [2023-08-29 02:17:35,504 INFO L231 Difference]: Finished difference. Result has 338 places, 944 transitions, 29447 flow [2023-08-29 02:17:35,504 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=355, PETRI_DIFFERENCE_MINUEND_FLOW=24717, PETRI_DIFFERENCE_MINUEND_PLACES=313, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=875, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=525, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=297, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=29447, PETRI_PLACES=338, PETRI_TRANSITIONS=944} [2023-08-29 02:17:35,505 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 261 predicate places. [2023-08-29 02:17:35,505 INFO L495 AbstractCegarLoop]: Abstraction has has 338 places, 944 transitions, 29447 flow [2023-08-29 02:17:35,505 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 02:17:35,505 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:17:35,505 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:17:35,506 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-08-29 02:17:35,506 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 02:17:35,506 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:17:35,506 INFO L85 PathProgramCache]: Analyzing trace with hash 2019892068, now seen corresponding path program 11 times [2023-08-29 02:17:35,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:17:35,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987213167] [2023-08-29 02:17:35,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:17:35,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:17:35,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:17:35,929 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 02:17:35,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:17:35,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987213167] [2023-08-29 02:17:35,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [987213167] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:17:35,932 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:17:35,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 02:17:35,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590436869] [2023-08-29 02:17:35,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:17:35,932 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 02:17:35,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:17:35,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 02:17:35,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-08-29 02:17:36,528 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 139 out of 355 [2023-08-29 02:17:36,528 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 338 places, 944 transitions, 29447 flow. Second operand has 10 states, 10 states have (on average 140.2) internal successors, (1402), 10 states have internal predecessors, (1402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:17:36,529 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:17:36,529 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 139 of 355 [2023-08-29 02:17:36,529 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:17:40,006 INFO L130 PetriNetUnfolder]: 3197/8802 cut-off events. [2023-08-29 02:17:40,006 INFO L131 PetriNetUnfolder]: For 280484/281213 co-relation queries the response was YES. [2023-08-29 02:17:40,089 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67481 conditions, 8802 events. 3197/8802 cut-off events. For 280484/281213 co-relation queries the response was YES. Maximal size of possible extension queue 372. Compared 85764 event pairs, 444 based on Foata normal form. 466/8897 useless extension candidates. Maximal degree in co-relation 67356. Up to 2549 conditions per place. [2023-08-29 02:17:40,118 INFO L137 encePairwiseOnDemand]: 326/355 looper letters, 471 selfloop transitions, 629 changer transitions 2/1142 dead transitions. [2023-08-29 02:17:40,119 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 350 places, 1142 transitions, 34762 flow [2023-08-29 02:17:40,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-08-29 02:17:40,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-08-29 02:17:40,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2041 transitions. [2023-08-29 02:17:40,121 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4422535211267606 [2023-08-29 02:17:40,121 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2041 transitions. [2023-08-29 02:17:40,121 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2041 transitions. [2023-08-29 02:17:40,121 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:17:40,122 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2041 transitions. [2023-08-29 02:17:40,123 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 157.0) internal successors, (2041), 13 states have internal predecessors, (2041), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:17:40,126 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 355.0) internal successors, (4970), 14 states have internal predecessors, (4970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:17:40,126 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 355.0) internal successors, (4970), 14 states have internal predecessors, (4970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:17:40,126 INFO L175 Difference]: Start difference. First operand has 338 places, 944 transitions, 29447 flow. Second operand 13 states and 2041 transitions. [2023-08-29 02:17:40,126 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 350 places, 1142 transitions, 34762 flow [2023-08-29 02:17:42,033 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 350 places, 1142 transitions, 34604 flow, removed 79 selfloop flow, removed 0 redundant places. [2023-08-29 02:17:42,062 INFO L231 Difference]: Finished difference. Result has 360 places, 990 transitions, 33594 flow [2023-08-29 02:17:42,064 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=355, PETRI_DIFFERENCE_MINUEND_FLOW=29317, PETRI_DIFFERENCE_MINUEND_PLACES=338, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=944, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=583, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=328, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=33594, PETRI_PLACES=360, PETRI_TRANSITIONS=990} [2023-08-29 02:17:42,064 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 283 predicate places. [2023-08-29 02:17:42,064 INFO L495 AbstractCegarLoop]: Abstraction has has 360 places, 990 transitions, 33594 flow [2023-08-29 02:17:42,065 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 02:17:42,065 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:17:42,065 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:17:42,065 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-08-29 02:17:42,065 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 02:17:42,066 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:17:42,066 INFO L85 PathProgramCache]: Analyzing trace with hash -1386061474, now seen corresponding path program 12 times [2023-08-29 02:17:42,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:17:42,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470624721] [2023-08-29 02:17:42,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:17:42,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:17:42,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:17:42,542 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 02:17:42,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:17:42,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470624721] [2023-08-29 02:17:42,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1470624721] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:17:42,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:17:42,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 02:17:42,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928970403] [2023-08-29 02:17:42,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:17:42,544 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 02:17:42,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:17:42,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 02:17:42,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-08-29 02:17:43,122 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 139 out of 355 [2023-08-29 02:17:43,123 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 360 places, 990 transitions, 33594 flow. Second operand has 10 states, 10 states have (on average 140.2) internal successors, (1402), 10 states have internal predecessors, (1402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:17:43,123 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:17:43,123 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 139 of 355 [2023-08-29 02:17:43,123 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:17:47,379 INFO L130 PetriNetUnfolder]: 3345/9255 cut-off events. [2023-08-29 02:17:47,380 INFO L131 PetriNetUnfolder]: For 349872/350572 co-relation queries the response was YES. [2023-08-29 02:17:47,474 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74098 conditions, 9255 events. 3345/9255 cut-off events. For 349872/350572 co-relation queries the response was YES. Maximal size of possible extension queue 400. Compared 91581 event pairs, 435 based on Foata normal form. 429/9285 useless extension candidates. Maximal degree in co-relation 73963. Up to 2729 conditions per place. [2023-08-29 02:17:47,505 INFO L137 encePairwiseOnDemand]: 324/355 looper letters, 489 selfloop transitions, 706 changer transitions 2/1237 dead transitions. [2023-08-29 02:17:47,505 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 373 places, 1237 transitions, 39785 flow [2023-08-29 02:17:47,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-29 02:17:47,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-29 02:17:47,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2230 transitions. [2023-08-29 02:17:47,507 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.448692152917505 [2023-08-29 02:17:47,507 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2230 transitions. [2023-08-29 02:17:47,507 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2230 transitions. [2023-08-29 02:17:47,508 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:17:47,508 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2230 transitions. [2023-08-29 02:17:47,510 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 02:17:47,512 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 355.0) internal successors, (5325), 15 states have internal predecessors, (5325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:17:47,512 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 355.0) internal successors, (5325), 15 states have internal predecessors, (5325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:17:47,512 INFO L175 Difference]: Start difference. First operand has 360 places, 990 transitions, 33594 flow. Second operand 14 states and 2230 transitions. [2023-08-29 02:17:47,512 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 373 places, 1237 transitions, 39785 flow [2023-08-29 02:17:50,112 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 372 places, 1237 transitions, 39657 flow, removed 54 selfloop flow, removed 1 redundant places. [2023-08-29 02:17:50,142 INFO L231 Difference]: Finished difference. Result has 384 places, 1049 transitions, 38555 flow [2023-08-29 02:17:50,143 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=355, PETRI_DIFFERENCE_MINUEND_FLOW=33470, PETRI_DIFFERENCE_MINUEND_PLACES=359, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=990, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=649, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=299, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=38555, PETRI_PLACES=384, PETRI_TRANSITIONS=1049} [2023-08-29 02:17:50,144 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 307 predicate places. [2023-08-29 02:17:50,144 INFO L495 AbstractCegarLoop]: Abstraction has has 384 places, 1049 transitions, 38555 flow [2023-08-29 02:17:50,145 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 02:17:50,145 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:17:50,145 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:17:50,145 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-08-29 02:17:50,145 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 02:17:50,145 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:17:50,146 INFO L85 PathProgramCache]: Analyzing trace with hash 2026840098, now seen corresponding path program 13 times [2023-08-29 02:17:50,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:17:50,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548401531] [2023-08-29 02:17:50,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:17:50,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:17:50,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:17:50,604 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 02:17:50,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:17:50,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548401531] [2023-08-29 02:17:50,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [548401531] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:17:50,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:17:50,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 02:17:50,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668768853] [2023-08-29 02:17:50,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:17:50,606 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 02:17:50,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:17:50,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 02:17:50,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-08-29 02:17:51,331 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 139 out of 355 [2023-08-29 02:17:51,332 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 384 places, 1049 transitions, 38555 flow. Second operand has 10 states, 10 states have (on average 140.2) internal successors, (1402), 10 states have internal predecessors, (1402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:17:51,332 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:17:51,332 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 139 of 355 [2023-08-29 02:17:51,332 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:17:55,902 INFO L130 PetriNetUnfolder]: 3493/9686 cut-off events. [2023-08-29 02:17:55,902 INFO L131 PetriNetUnfolder]: For 432155/433011 co-relation queries the response was YES. [2023-08-29 02:17:56,107 INFO L83 FinitePrefix]: Finished finitePrefix Result has 81500 conditions, 9686 events. 3493/9686 cut-off events. For 432155/433011 co-relation queries the response was YES. Maximal size of possible extension queue 419. Compared 96884 event pairs, 417 based on Foata normal form. 560/9823 useless extension candidates. Maximal degree in co-relation 81353. Up to 2594 conditions per place. [2023-08-29 02:17:56,140 INFO L137 encePairwiseOnDemand]: 325/355 looper letters, 531 selfloop transitions, 692 changer transitions 2/1265 dead transitions. [2023-08-29 02:17:56,140 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 397 places, 1265 transitions, 44662 flow [2023-08-29 02:17:56,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-29 02:17:56,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-29 02:17:56,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2198 transitions. [2023-08-29 02:17:56,143 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4422535211267606 [2023-08-29 02:17:56,143 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2198 transitions. [2023-08-29 02:17:56,143 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2198 transitions. [2023-08-29 02:17:56,143 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:17:56,143 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2198 transitions. [2023-08-29 02:17:56,146 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 157.0) internal successors, (2198), 14 states have internal predecessors, (2198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:17:56,149 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 355.0) internal successors, (5325), 15 states have internal predecessors, (5325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:17:56,149 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 355.0) internal successors, (5325), 15 states have internal predecessors, (5325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:17:56,149 INFO L175 Difference]: Start difference. First operand has 384 places, 1049 transitions, 38555 flow. Second operand 14 states and 2198 transitions. [2023-08-29 02:17:56,149 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 397 places, 1265 transitions, 44662 flow [2023-08-29 02:17:59,794 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 396 places, 1265 transitions, 44541 flow, removed 57 selfloop flow, removed 1 redundant places. [2023-08-29 02:17:59,827 INFO L231 Difference]: Finished difference. Result has 406 places, 1097 transitions, 43330 flow [2023-08-29 02:17:59,829 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=355, PETRI_DIFFERENCE_MINUEND_FLOW=38444, PETRI_DIFFERENCE_MINUEND_PLACES=383, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1049, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=644, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=371, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=43330, PETRI_PLACES=406, PETRI_TRANSITIONS=1097} [2023-08-29 02:17:59,829 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 329 predicate places. [2023-08-29 02:17:59,830 INFO L495 AbstractCegarLoop]: Abstraction has has 406 places, 1097 transitions, 43330 flow [2023-08-29 02:17:59,830 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 02:17:59,830 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:17:59,830 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:17:59,830 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-08-29 02:17:59,830 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 02:17:59,830 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:17:59,830 INFO L85 PathProgramCache]: Analyzing trace with hash -1625640513, now seen corresponding path program 1 times [2023-08-29 02:17:59,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:17:59,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395265866] [2023-08-29 02:17:59,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:17:59,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:17:59,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:18:00,133 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 02:18:00,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:18:00,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395265866] [2023-08-29 02:18:00,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1395265866] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:18:00,134 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:18:00,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 02:18:00,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778001314] [2023-08-29 02:18:00,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:18:00,135 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 02:18:00,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:18:00,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 02:18:00,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 02:18:00,352 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 355 [2023-08-29 02:18:00,352 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 406 places, 1097 transitions, 43330 flow. Second operand has 6 states, 6 states have (on average 147.0) internal successors, (882), 6 states have internal predecessors, (882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:18:00,352 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:18:00,352 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 355 [2023-08-29 02:18:00,352 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:18:07,165 INFO L130 PetriNetUnfolder]: 5647/14257 cut-off events. [2023-08-29 02:18:07,166 INFO L131 PetriNetUnfolder]: For 639988/640558 co-relation queries the response was YES. [2023-08-29 02:18:07,321 INFO L83 FinitePrefix]: Finished finitePrefix Result has 112179 conditions, 14257 events. 5647/14257 cut-off events. For 639988/640558 co-relation queries the response was YES. Maximal size of possible extension queue 509. Compared 140774 event pairs, 2121 based on Foata normal form. 106/13683 useless extension candidates. Maximal degree in co-relation 112022. Up to 10464 conditions per place. [2023-08-29 02:18:07,370 INFO L137 encePairwiseOnDemand]: 341/355 looper letters, 1014 selfloop transitions, 170 changer transitions 0/1372 dead transitions. [2023-08-29 02:18:07,370 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 411 places, 1372 transitions, 55200 flow [2023-08-29 02:18:07,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 02:18:07,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 02:18:07,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 975 transitions. [2023-08-29 02:18:07,371 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45774647887323944 [2023-08-29 02:18:07,371 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 975 transitions. [2023-08-29 02:18:07,372 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 975 transitions. [2023-08-29 02:18:07,372 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:18:07,372 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 975 transitions. [2023-08-29 02:18:07,373 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 162.5) internal successors, (975), 6 states have internal predecessors, (975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:18:07,375 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 355.0) internal successors, (2485), 7 states have internal predecessors, (2485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:18:07,375 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 355.0) internal successors, (2485), 7 states have internal predecessors, (2485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:18:07,375 INFO L175 Difference]: Start difference. First operand has 406 places, 1097 transitions, 43330 flow. Second operand 6 states and 975 transitions. [2023-08-29 02:18:07,375 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 411 places, 1372 transitions, 55200 flow [2023-08-29 02:18:12,863 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 408 places, 1372 transitions, 54926 flow, removed 87 selfloop flow, removed 3 redundant places. [2023-08-29 02:18:12,892 INFO L231 Difference]: Finished difference. Result has 412 places, 1236 transitions, 46974 flow [2023-08-29 02:18:12,893 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=355, PETRI_DIFFERENCE_MINUEND_FLOW=43130, PETRI_DIFFERENCE_MINUEND_PLACES=403, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1097, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=55, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=999, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=46974, PETRI_PLACES=412, PETRI_TRANSITIONS=1236} [2023-08-29 02:18:12,893 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 335 predicate places. [2023-08-29 02:18:12,894 INFO L495 AbstractCegarLoop]: Abstraction has has 412 places, 1236 transitions, 46974 flow [2023-08-29 02:18:12,894 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 147.0) internal successors, (882), 6 states have internal predecessors, (882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:18:12,894 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:18:12,894 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 02:18:12,894 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-08-29 02:18:12,894 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 02:18:12,895 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:18:12,895 INFO L85 PathProgramCache]: Analyzing trace with hash 1086643166, now seen corresponding path program 1 times [2023-08-29 02:18:12,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:18:12,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988056168] [2023-08-29 02:18:12,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:18:12,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:18:12,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:18:13,217 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 02:18:13,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:18:13,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988056168] [2023-08-29 02:18:13,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [988056168] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:18:13,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:18:13,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 02:18:13,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405943341] [2023-08-29 02:18:13,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:18:13,218 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 02:18:13,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:18:13,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 02:18:13,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 02:18:13,423 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 150 out of 355 [2023-08-29 02:18:13,424 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 412 places, 1236 transitions, 46974 flow. Second operand has 6 states, 6 states have (on average 151.83333333333334) internal successors, (911), 6 states have internal predecessors, (911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:18:13,424 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:18:13,424 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 150 of 355 [2023-08-29 02:18:13,424 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:18:22,975 INFO L130 PetriNetUnfolder]: 7995/18963 cut-off events. [2023-08-29 02:18:22,976 INFO L131 PetriNetUnfolder]: For 945441/946370 co-relation queries the response was YES. [2023-08-29 02:18:23,212 INFO L83 FinitePrefix]: Finished finitePrefix Result has 159957 conditions, 18963 events. 7995/18963 cut-off events. For 945441/946370 co-relation queries the response was YES. Maximal size of possible extension queue 704. Compared 190112 event pairs, 812 based on Foata normal form. 103/18562 useless extension candidates. Maximal degree in co-relation 159796. Up to 10805 conditions per place. [2023-08-29 02:18:23,276 INFO L137 encePairwiseOnDemand]: 333/355 looper letters, 1124 selfloop transitions, 746 changer transitions 4/2189 dead transitions. [2023-08-29 02:18:23,277 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 417 places, 2189 transitions, 91780 flow [2023-08-29 02:18:23,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 02:18:23,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 02:18:23,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1056 transitions. [2023-08-29 02:18:23,278 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49577464788732395 [2023-08-29 02:18:23,278 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1056 transitions. [2023-08-29 02:18:23,278 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1056 transitions. [2023-08-29 02:18:23,278 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:18:23,279 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1056 transitions. [2023-08-29 02:18:23,279 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 176.0) internal successors, (1056), 6 states have internal predecessors, (1056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:18:23,281 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 355.0) internal successors, (2485), 7 states have internal predecessors, (2485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:18:23,281 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 355.0) internal successors, (2485), 7 states have internal predecessors, (2485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:18:23,281 INFO L175 Difference]: Start difference. First operand has 412 places, 1236 transitions, 46974 flow. Second operand 6 states and 1056 transitions. [2023-08-29 02:18:23,281 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 417 places, 2189 transitions, 91780 flow [2023-08-29 02:18:32,596 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 417 places, 2189 transitions, 91436 flow, removed 172 selfloop flow, removed 0 redundant places. [2023-08-29 02:18:32,651 INFO L231 Difference]: Finished difference. Result has 422 places, 1804 transitions, 75697 flow [2023-08-29 02:18:32,652 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=355, PETRI_DIFFERENCE_MINUEND_FLOW=46630, PETRI_DIFFERENCE_MINUEND_PLACES=412, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1236, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=276, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=928, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=75697, PETRI_PLACES=422, PETRI_TRANSITIONS=1804} [2023-08-29 02:18:32,653 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 345 predicate places. [2023-08-29 02:18:32,653 INFO L495 AbstractCegarLoop]: Abstraction has has 422 places, 1804 transitions, 75697 flow [2023-08-29 02:18:32,653 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 151.83333333333334) internal successors, (911), 6 states have internal predecessors, (911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:18:32,653 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:18:32,653 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 02:18:32,653 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-08-29 02:18:32,653 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 02:18:32,654 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:18:32,654 INFO L85 PathProgramCache]: Analyzing trace with hash 616594389, now seen corresponding path program 1 times [2023-08-29 02:18:32,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:18:32,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781819115] [2023-08-29 02:18:32,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:18:32,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:18:32,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:18:33,058 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 02:18:33,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:18:33,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781819115] [2023-08-29 02:18:33,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [781819115] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:18:33,059 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:18:33,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 02:18:33,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197361358] [2023-08-29 02:18:33,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:18:33,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 02:18:33,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:18:33,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 02:18:33,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-08-29 02:18:33,721 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 355 [2023-08-29 02:18:33,723 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 422 places, 1804 transitions, 75697 flow. Second operand has 10 states, 10 states have (on average 142.5) internal successors, (1425), 10 states have internal predecessors, (1425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:18:33,723 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:18:33,723 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 355 [2023-08-29 02:18:33,723 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:18:47,106 INFO L130 PetriNetUnfolder]: 8186/19746 cut-off events. [2023-08-29 02:18:47,106 INFO L131 PetriNetUnfolder]: For 965988/966775 co-relation queries the response was YES. [2023-08-29 02:18:47,426 INFO L83 FinitePrefix]: Finished finitePrefix Result has 175479 conditions, 19746 events. 8186/19746 cut-off events. For 965988/966775 co-relation queries the response was YES. Maximal size of possible extension queue 691. Compared 199508 event pairs, 1887 based on Foata normal form. 286/19576 useless extension candidates. Maximal degree in co-relation 175313. Up to 11809 conditions per place. [2023-08-29 02:18:47,500 INFO L137 encePairwiseOnDemand]: 341/355 looper letters, 1270 selfloop transitions, 488 changer transitions 2/2084 dead transitions. [2023-08-29 02:18:47,500 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 436 places, 2084 transitions, 87332 flow [2023-08-29 02:18:47,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-08-29 02:18:47,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-08-29 02:18:47,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2306 transitions. [2023-08-29 02:18:47,504 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4330516431924883 [2023-08-29 02:18:47,504 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2306 transitions. [2023-08-29 02:18:47,504 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2306 transitions. [2023-08-29 02:18:47,504 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:18:47,504 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2306 transitions. [2023-08-29 02:18:47,507 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 153.73333333333332) internal successors, (2306), 15 states have internal predecessors, (2306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:18:47,510 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 355.0) internal successors, (5680), 16 states have internal predecessors, (5680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:18:47,511 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 355.0) internal successors, (5680), 16 states have internal predecessors, (5680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:18:47,511 INFO L175 Difference]: Start difference. First operand has 422 places, 1804 transitions, 75697 flow. Second operand 15 states and 2306 transitions. [2023-08-29 02:18:47,511 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 436 places, 2084 transitions, 87332 flow [2023-08-29 02:18:59,213 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 436 places, 2084 transitions, 86516 flow, removed 408 selfloop flow, removed 0 redundant places. [2023-08-29 02:18:59,261 INFO L231 Difference]: Finished difference. Result has 440 places, 1894 transitions, 79858 flow [2023-08-29 02:18:59,262 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=355, PETRI_DIFFERENCE_MINUEND_FLOW=74905, PETRI_DIFFERENCE_MINUEND_PLACES=422, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1804, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=404, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1396, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=79858, PETRI_PLACES=440, PETRI_TRANSITIONS=1894} [2023-08-29 02:18:59,263 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 363 predicate places. [2023-08-29 02:18:59,263 INFO L495 AbstractCegarLoop]: Abstraction has has 440 places, 1894 transitions, 79858 flow [2023-08-29 02:18:59,263 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 142.5) internal successors, (1425), 10 states have internal predecessors, (1425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:18:59,263 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:18:59,263 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 02:18:59,264 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-08-29 02:18:59,264 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 02:18:59,264 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:18:59,264 INFO L85 PathProgramCache]: Analyzing trace with hash 739678113, now seen corresponding path program 1 times [2023-08-29 02:18:59,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:18:59,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505121668] [2023-08-29 02:18:59,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:18:59,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:18:59,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:19:00,118 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 02:19:00,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:19:00,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505121668] [2023-08-29 02:19:00,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [505121668] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:19:00,119 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:19:00,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-29 02:19:00,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874315448] [2023-08-29 02:19:00,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:19:00,119 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-29 02:19:00,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:19:00,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-29 02:19:00,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2023-08-29 02:19:00,961 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 355 [2023-08-29 02:19:00,962 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 440 places, 1894 transitions, 79858 flow. Second operand has 12 states, 12 states have (on average 127.58333333333333) internal successors, (1531), 12 states have internal predecessors, (1531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:19:00,962 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:19:00,962 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 355 [2023-08-29 02:19:00,962 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:19:17,511 INFO L130 PetriNetUnfolder]: 8287/19806 cut-off events. [2023-08-29 02:19:17,511 INFO L131 PetriNetUnfolder]: For 1020879/1021669 co-relation queries the response was YES. [2023-08-29 02:19:17,813 INFO L83 FinitePrefix]: Finished finitePrefix Result has 178279 conditions, 19806 events. 8287/19806 cut-off events. For 1020879/1021669 co-relation queries the response was YES. Maximal size of possible extension queue 734. Compared 199040 event pairs, 1764 based on Foata normal form. 162/19504 useless extension candidates. Maximal degree in co-relation 178108. Up to 10178 conditions per place. [2023-08-29 02:19:17,891 INFO L137 encePairwiseOnDemand]: 337/355 looper letters, 1167 selfloop transitions, 542 changer transitions 0/2121 dead transitions. [2023-08-29 02:19:17,892 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 458 places, 2121 transitions, 89194 flow [2023-08-29 02:19:17,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-08-29 02:19:17,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2023-08-29 02:19:17,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2602 transitions. [2023-08-29 02:19:17,895 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.38576723498888066 [2023-08-29 02:19:17,895 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2602 transitions. [2023-08-29 02:19:17,895 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2602 transitions. [2023-08-29 02:19:17,896 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:19:17,896 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2602 transitions. [2023-08-29 02:19:17,899 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 136.94736842105263) internal successors, (2602), 19 states have internal predecessors, (2602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:19:17,903 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 355.0) internal successors, (7100), 20 states have internal predecessors, (7100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:19:17,904 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 355.0) internal successors, (7100), 20 states have internal predecessors, (7100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:19:17,904 INFO L175 Difference]: Start difference. First operand has 440 places, 1894 transitions, 79858 flow. Second operand 19 states and 2602 transitions. [2023-08-29 02:19:17,904 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 458 places, 2121 transitions, 89194 flow [2023-08-29 02:19:30,161 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 455 places, 2121 transitions, 89117 flow, removed 14 selfloop flow, removed 3 redundant places. [2023-08-29 02:19:30,220 INFO L231 Difference]: Finished difference. Result has 461 places, 1924 transitions, 82360 flow [2023-08-29 02:19:30,222 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=355, PETRI_DIFFERENCE_MINUEND_FLOW=79781, PETRI_DIFFERENCE_MINUEND_PLACES=437, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1894, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=514, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1359, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=82360, PETRI_PLACES=461, PETRI_TRANSITIONS=1924} [2023-08-29 02:19:30,222 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 384 predicate places. [2023-08-29 02:19:30,222 INFO L495 AbstractCegarLoop]: Abstraction has has 461 places, 1924 transitions, 82360 flow [2023-08-29 02:19:30,223 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 127.58333333333333) internal successors, (1531), 12 states have internal predecessors, (1531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:19:30,223 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:19:30,223 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 02:19:30,223 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-08-29 02:19:30,223 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 02:19:30,224 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:19:30,224 INFO L85 PathProgramCache]: Analyzing trace with hash -240303775, now seen corresponding path program 2 times [2023-08-29 02:19:30,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:19:30,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845604045] [2023-08-29 02:19:30,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:19:30,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:19:30,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:19:30,882 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 02:19:30,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:19:30,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845604045] [2023-08-29 02:19:30,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [845604045] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:19:30,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:19:30,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-29 02:19:30,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701086313] [2023-08-29 02:19:30,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:19:30,883 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-29 02:19:30,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:19:30,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-29 02:19:30,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2023-08-29 02:19:31,863 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 355 [2023-08-29 02:19:31,864 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 461 places, 1924 transitions, 82360 flow. Second operand has 12 states, 12 states have (on average 127.58333333333333) internal successors, (1531), 12 states have internal predecessors, (1531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:19:31,864 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:19:31,864 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 355 [2023-08-29 02:19:31,864 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:19:56,542 INFO L130 PetriNetUnfolder]: 13512/31841 cut-off events. [2023-08-29 02:19:56,542 INFO L131 PetriNetUnfolder]: For 1633632/1634399 co-relation queries the response was YES. [2023-08-29 02:19:57,370 INFO L83 FinitePrefix]: Finished finitePrefix Result has 294647 conditions, 31841 events. 13512/31841 cut-off events. For 1633632/1634399 co-relation queries the response was YES. Maximal size of possible extension queue 1050. Compared 342337 event pairs, 1994 based on Foata normal form. 144/31367 useless extension candidates. Maximal degree in co-relation 294469. Up to 11852 conditions per place. [2023-08-29 02:19:57,501 INFO L137 encePairwiseOnDemand]: 339/355 looper letters, 2284 selfloop transitions, 473 changer transitions 0/3169 dead transitions. [2023-08-29 02:19:57,501 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 476 places, 3169 transitions, 136933 flow [2023-08-29 02:19:57,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-08-29 02:19:57,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-08-29 02:19:57,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2208 transitions. [2023-08-29 02:19:57,504 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.38873239436619716 [2023-08-29 02:19:57,504 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 2208 transitions. [2023-08-29 02:19:57,504 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 2208 transitions. [2023-08-29 02:19:57,504 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:19:57,504 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 2208 transitions. [2023-08-29 02:19:57,506 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 138.0) internal successors, (2208), 16 states have internal predecessors, (2208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:19:57,510 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 355.0) internal successors, (6035), 17 states have internal predecessors, (6035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:19:57,510 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 355.0) internal successors, (6035), 17 states have internal predecessors, (6035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:19:57,511 INFO L175 Difference]: Start difference. First operand has 461 places, 1924 transitions, 82360 flow. Second operand 16 states and 2208 transitions. [2023-08-29 02:19:57,511 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 476 places, 3169 transitions, 136933 flow [2023-08-29 02:20:20,194 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 466 places, 3169 transitions, 135800 flow, removed 5 selfloop flow, removed 10 redundant places. [2023-08-29 02:20:20,258 INFO L231 Difference]: Finished difference. Result has 476 places, 2313 transitions, 103360 flow [2023-08-29 02:20:20,259 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=355, PETRI_DIFFERENCE_MINUEND_FLOW=81736, PETRI_DIFFERENCE_MINUEND_PLACES=451, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1924, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=104, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1493, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=103360, PETRI_PLACES=476, PETRI_TRANSITIONS=2313} [2023-08-29 02:20:20,260 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 399 predicate places. [2023-08-29 02:20:20,260 INFO L495 AbstractCegarLoop]: Abstraction has has 476 places, 2313 transitions, 103360 flow [2023-08-29 02:20:20,260 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 127.58333333333333) internal successors, (1531), 12 states have internal predecessors, (1531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:20:20,260 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:20:20,260 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 02:20:20,260 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-08-29 02:20:20,260 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 02:20:20,261 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:20:20,261 INFO L85 PathProgramCache]: Analyzing trace with hash -729693943, now seen corresponding path program 3 times [2023-08-29 02:20:20,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:20:20,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53268205] [2023-08-29 02:20:20,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:20:20,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:20:20,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:20:20,941 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 02:20:20,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:20:20,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53268205] [2023-08-29 02:20:20,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [53268205] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:20:20,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:20:20,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-29 02:20:20,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5522800] [2023-08-29 02:20:20,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:20:20,941 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-29 02:20:20,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:20:20,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-29 02:20:20,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2023-08-29 02:20:22,004 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 355 [2023-08-29 02:20:22,005 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 476 places, 2313 transitions, 103360 flow. Second operand has 12 states, 12 states have (on average 127.58333333333333) internal successors, (1531), 12 states have internal predecessors, (1531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:20:22,005 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:20:22,005 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 355 [2023-08-29 02:20:22,005 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:20:49,830 INFO L130 PetriNetUnfolder]: 13654/32045 cut-off events. [2023-08-29 02:20:49,831 INFO L131 PetriNetUnfolder]: For 1699258/1700512 co-relation queries the response was YES. [2023-08-29 02:20:50,740 INFO L83 FinitePrefix]: Finished finitePrefix Result has 304130 conditions, 32045 events. 13654/32045 cut-off events. For 1699258/1700512 co-relation queries the response was YES. Maximal size of possible extension queue 1050. Compared 342353 event pairs, 2815 based on Foata normal form. 330/31704 useless extension candidates. Maximal degree in co-relation 303941. Up to 16868 conditions per place. [2023-08-29 02:20:50,901 INFO L137 encePairwiseOnDemand]: 337/355 looper letters, 1286 selfloop transitions, 810 changer transitions 0/2508 dead transitions. [2023-08-29 02:20:50,901 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 493 places, 2508 transitions, 112658 flow [2023-08-29 02:20:50,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-08-29 02:20:50,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-08-29 02:20:50,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2465 transitions. [2023-08-29 02:20:50,904 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3857589984350548 [2023-08-29 02:20:50,904 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2465 transitions. [2023-08-29 02:20:50,904 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2465 transitions. [2023-08-29 02:20:50,904 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:20:50,904 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2465 transitions. [2023-08-29 02:20:50,907 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 136.94444444444446) internal successors, (2465), 18 states have internal predecessors, (2465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:20:50,910 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 355.0) internal successors, (6745), 19 states have internal predecessors, (6745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:20:50,910 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 355.0) internal successors, (6745), 19 states have internal predecessors, (6745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:20:50,910 INFO L175 Difference]: Start difference. First operand has 476 places, 2313 transitions, 103360 flow. Second operand 18 states and 2465 transitions. [2023-08-29 02:20:50,910 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 493 places, 2508 transitions, 112658 flow [2023-08-29 02:21:14,970 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 493 places, 2508 transitions, 112600 flow, removed 29 selfloop flow, removed 0 redundant places. [2023-08-29 02:21:15,035 INFO L231 Difference]: Finished difference. Result has 500 places, 2345 transitions, 106227 flow [2023-08-29 02:21:15,037 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=355, PETRI_DIFFERENCE_MINUEND_FLOW=103310, PETRI_DIFFERENCE_MINUEND_PLACES=476, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2313, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=779, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1516, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=106227, PETRI_PLACES=500, PETRI_TRANSITIONS=2345} [2023-08-29 02:21:15,037 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 423 predicate places. [2023-08-29 02:21:15,038 INFO L495 AbstractCegarLoop]: Abstraction has has 500 places, 2345 transitions, 106227 flow [2023-08-29 02:21:15,038 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 127.58333333333333) internal successors, (1531), 12 states have internal predecessors, (1531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:21:15,038 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:21:15,038 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 02:21:15,038 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-08-29 02:21:15,038 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 02:21:15,038 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:21:15,038 INFO L85 PathProgramCache]: Analyzing trace with hash 1878478625, now seen corresponding path program 4 times [2023-08-29 02:21:15,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:21:15,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856771767] [2023-08-29 02:21:15,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:21:15,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:21:15,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:21:15,686 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 02:21:15,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:21:15,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856771767] [2023-08-29 02:21:15,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856771767] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:21:15,686 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:21:15,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-29 02:21:15,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535189490] [2023-08-29 02:21:15,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:21:15,687 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-29 02:21:15,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:21:15,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-29 02:21:15,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2023-08-29 02:21:16,577 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 355 [2023-08-29 02:21:16,578 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 500 places, 2345 transitions, 106227 flow. Second operand has 12 states, 12 states have (on average 127.58333333333333) internal successors, (1531), 12 states have internal predecessors, (1531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:21:16,578 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:21:16,578 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 355 [2023-08-29 02:21:16,578 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:21:46,754 INFO L130 PetriNetUnfolder]: 13844/32577 cut-off events. [2023-08-29 02:21:46,754 INFO L131 PetriNetUnfolder]: For 1808906/1809921 co-relation queries the response was YES. [2023-08-29 02:21:47,971 INFO L83 FinitePrefix]: Finished finitePrefix Result has 317182 conditions, 32577 events. 13844/32577 cut-off events. For 1808906/1809921 co-relation queries the response was YES. Maximal size of possible extension queue 1049. Compared 348834 event pairs, 2946 based on Foata normal form. 256/32120 useless extension candidates. Maximal degree in co-relation 316985. Up to 19072 conditions per place. [2023-08-29 02:21:48,140 INFO L137 encePairwiseOnDemand]: 340/355 looper letters, 1666 selfloop transitions, 569 changer transitions 0/2647 dead transitions. [2023-08-29 02:21:48,140 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 516 places, 2647 transitions, 119795 flow [2023-08-29 02:21:48,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-08-29 02:21:48,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-08-29 02:21:48,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2343 transitions. [2023-08-29 02:21:48,143 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.38823529411764707 [2023-08-29 02:21:48,143 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2343 transitions. [2023-08-29 02:21:48,143 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2343 transitions. [2023-08-29 02:21:48,144 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:21:48,144 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2343 transitions. [2023-08-29 02:21:48,146 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 137.8235294117647) internal successors, (2343), 17 states have internal predecessors, (2343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:21:48,151 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 355.0) internal successors, (6390), 18 states have internal predecessors, (6390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:21:48,152 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 355.0) internal successors, (6390), 18 states have internal predecessors, (6390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:21:48,152 INFO L175 Difference]: Start difference. First operand has 500 places, 2345 transitions, 106227 flow. Second operand 17 states and 2343 transitions. [2023-08-29 02:21:48,152 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 516 places, 2647 transitions, 119795 flow [2023-08-29 02:22:13,234 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 510 places, 2647 transitions, 119497 flow, removed 50 selfloop flow, removed 6 redundant places. [2023-08-29 02:22:13,301 INFO L231 Difference]: Finished difference. Result has 519 places, 2401 transitions, 109893 flow [2023-08-29 02:22:13,302 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=355, PETRI_DIFFERENCE_MINUEND_FLOW=105930, PETRI_DIFFERENCE_MINUEND_PLACES=494, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2345, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=518, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1791, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=109893, PETRI_PLACES=519, PETRI_TRANSITIONS=2401} [2023-08-29 02:22:13,303 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 442 predicate places. [2023-08-29 02:22:13,303 INFO L495 AbstractCegarLoop]: Abstraction has has 519 places, 2401 transitions, 109893 flow [2023-08-29 02:22:13,303 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 127.58333333333333) internal successors, (1531), 12 states have internal predecessors, (1531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:22:13,303 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:22:13,303 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 02:22:13,303 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-08-29 02:22:13,303 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 02:22:13,304 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:22:13,304 INFO L85 PathProgramCache]: Analyzing trace with hash 1135436671, now seen corresponding path program 5 times [2023-08-29 02:22:13,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:22:13,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524354903] [2023-08-29 02:22:13,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:22:13,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:22:13,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:22:13,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:22:13,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:22:13,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524354903] [2023-08-29 02:22:13,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524354903] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:22:13,960 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:22:13,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-29 02:22:13,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032615113] [2023-08-29 02:22:13,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:22:13,961 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-29 02:22:13,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:22:13,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-29 02:22:13,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2023-08-29 02:22:14,851 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 355 [2023-08-29 02:22:14,852 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 519 places, 2401 transitions, 109893 flow. Second operand has 12 states, 12 states have (on average 127.58333333333333) internal successors, (1531), 12 states have internal predecessors, (1531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:22:14,852 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:22:14,852 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 355 [2023-08-29 02:22:14,852 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:22:45,142 INFO L130 PetriNetUnfolder]: 13867/32533 cut-off events. [2023-08-29 02:22:45,143 INFO L131 PetriNetUnfolder]: For 1887185/1888583 co-relation queries the response was YES. [2023-08-29 02:22:46,342 INFO L83 FinitePrefix]: Finished finitePrefix Result has 324499 conditions, 32533 events. 13867/32533 cut-off events. For 1887185/1888583 co-relation queries the response was YES. Maximal size of possible extension queue 1052. Compared 347697 event pairs, 2883 based on Foata normal form. 365/32222 useless extension candidates. Maximal degree in co-relation 324293. Up to 16904 conditions per place. [2023-08-29 02:22:46,480 INFO L137 encePairwiseOnDemand]: 337/355 looper letters, 1223 selfloop transitions, 995 changer transitions 0/2630 dead transitions. [2023-08-29 02:22:46,480 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 541 places, 2630 transitions, 120525 flow [2023-08-29 02:22:46,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-08-29 02:22:46,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2023-08-29 02:22:46,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 3122 transitions. [2023-08-29 02:22:46,484 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.382363747703613 [2023-08-29 02:22:46,484 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 3122 transitions. [2023-08-29 02:22:46,484 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 3122 transitions. [2023-08-29 02:22:46,484 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:22:46,484 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 3122 transitions. [2023-08-29 02:22:46,487 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 135.7391304347826) internal successors, (3122), 23 states have internal predecessors, (3122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:22:46,490 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 355.0) internal successors, (8520), 24 states have internal predecessors, (8520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:22:46,490 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 355.0) internal successors, (8520), 24 states have internal predecessors, (8520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:22:46,490 INFO L175 Difference]: Start difference. First operand has 519 places, 2401 transitions, 109893 flow. Second operand 23 states and 3122 transitions. [2023-08-29 02:22:46,490 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 541 places, 2630 transitions, 120525 flow [2023-08-29 02:23:11,980 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 538 places, 2630 transitions, 120210 flow, removed 125 selfloop flow, removed 3 redundant places. [2023-08-29 02:23:12,075 INFO L231 Difference]: Finished difference. Result has 546 places, 2428 transitions, 113213 flow [2023-08-29 02:23:12,077 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=355, PETRI_DIFFERENCE_MINUEND_FLOW=109594, PETRI_DIFFERENCE_MINUEND_PLACES=516, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2401, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=969, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1421, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=113213, PETRI_PLACES=546, PETRI_TRANSITIONS=2428} [2023-08-29 02:23:12,078 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 469 predicate places. [2023-08-29 02:23:12,078 INFO L495 AbstractCegarLoop]: Abstraction has has 546 places, 2428 transitions, 113213 flow [2023-08-29 02:23:12,078 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 127.58333333333333) internal successors, (1531), 12 states have internal predecessors, (1531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:23:12,078 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:23:12,079 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 02:23:12,079 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-08-29 02:23:12,079 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 02:23:12,079 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:23:12,079 INFO L85 PathProgramCache]: Analyzing trace with hash -2030116687, now seen corresponding path program 6 times [2023-08-29 02:23:12,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:23:12,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274757083] [2023-08-29 02:23:12,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:23:12,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:23:12,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:23:12,659 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 02:23:12,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:23:12,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274757083] [2023-08-29 02:23:12,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [274757083] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:23:12,660 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:23:12,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-29 02:23:12,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119198044] [2023-08-29 02:23:12,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:23:12,661 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-29 02:23:12,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:23:12,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-29 02:23:12,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2023-08-29 02:23:13,664 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 355 [2023-08-29 02:23:13,666 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 546 places, 2428 transitions, 113213 flow. Second operand has 12 states, 12 states have (on average 127.58333333333333) internal successors, (1531), 12 states have internal predecessors, (1531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:23:13,666 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:23:13,666 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 355 [2023-08-29 02:23:13,666 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:23:46,072 INFO L130 PetriNetUnfolder]: 13877/32565 cut-off events. [2023-08-29 02:23:46,073 INFO L131 PetriNetUnfolder]: For 1964707/1966110 co-relation queries the response was YES. [2023-08-29 02:23:47,159 INFO L83 FinitePrefix]: Finished finitePrefix Result has 332523 conditions, 32565 events. 13877/32565 cut-off events. For 1964707/1966110 co-relation queries the response was YES. Maximal size of possible extension queue 1053. Compared 348149 event pairs, 2868 based on Foata normal form. 376/32263 useless extension candidates. Maximal degree in co-relation 332308. Up to 16949 conditions per place. [2023-08-29 02:23:47,302 INFO L137 encePairwiseOnDemand]: 337/355 looper letters, 1386 selfloop transitions, 798 changer transitions 0/2596 dead transitions. [2023-08-29 02:23:47,302 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 562 places, 2596 transitions, 122292 flow [2023-08-29 02:23:47,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-08-29 02:23:47,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-08-29 02:23:47,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2332 transitions. [2023-08-29 02:23:47,306 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3864125932062966 [2023-08-29 02:23:47,306 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2332 transitions. [2023-08-29 02:23:47,306 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2332 transitions. [2023-08-29 02:23:47,306 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:23:47,306 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2332 transitions. [2023-08-29 02:23:47,309 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 137.1764705882353) internal successors, (2332), 17 states have internal predecessors, (2332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:23:47,312 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 355.0) internal successors, (6390), 18 states have internal predecessors, (6390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:23:47,312 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 355.0) internal successors, (6390), 18 states have internal predecessors, (6390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:23:47,312 INFO L175 Difference]: Start difference. First operand has 546 places, 2428 transitions, 113213 flow. Second operand 17 states and 2332 transitions. [2023-08-29 02:23:47,312 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 562 places, 2596 transitions, 122292 flow [2023-08-29 02:24:14,260 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 552 places, 2596 transitions, 121397 flow, removed 64 selfloop flow, removed 10 redundant places. [2023-08-29 02:24:14,326 INFO L231 Difference]: Finished difference. Result has 559 places, 2464 transitions, 115953 flow [2023-08-29 02:24:14,328 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=355, PETRI_DIFFERENCE_MINUEND_FLOW=112332, PETRI_DIFFERENCE_MINUEND_PLACES=536, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2428, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=764, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1640, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=115953, PETRI_PLACES=559, PETRI_TRANSITIONS=2464} [2023-08-29 02:24:14,328 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 482 predicate places. [2023-08-29 02:24:14,328 INFO L495 AbstractCegarLoop]: Abstraction has has 559 places, 2464 transitions, 115953 flow [2023-08-29 02:24:14,329 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 127.58333333333333) internal successors, (1531), 12 states have internal predecessors, (1531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:24:14,329 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:24:14,329 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 02:24:14,329 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-08-29 02:24:14,329 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 02:24:14,329 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:24:14,329 INFO L85 PathProgramCache]: Analyzing trace with hash -416322961, now seen corresponding path program 7 times [2023-08-29 02:24:14,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:24:14,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316166697] [2023-08-29 02:24:14,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:24:14,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:24:14,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:24:14,925 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 02:24:14,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:24:14,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316166697] [2023-08-29 02:24:14,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316166697] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:24:14,925 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:24:14,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-29 02:24:14,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268754431] [2023-08-29 02:24:14,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:24:14,926 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-29 02:24:14,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:24:14,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-29 02:24:14,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2023-08-29 02:24:15,833 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 355 [2023-08-29 02:24:15,834 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 559 places, 2464 transitions, 115953 flow. Second operand has 12 states, 12 states have (on average 127.58333333333333) internal successors, (1531), 12 states have internal predecessors, (1531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:24:15,834 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:24:15,834 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 355 [2023-08-29 02:24:15,835 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:24:47,407 INFO L130 PetriNetUnfolder]: 13901/32599 cut-off events. [2023-08-29 02:24:47,407 INFO L131 PetriNetUnfolder]: For 2052998/2054241 co-relation queries the response was YES. [2023-08-29 02:24:48,565 INFO L83 FinitePrefix]: Finished finitePrefix Result has 337835 conditions, 32599 events. 13901/32599 cut-off events. For 2052998/2054241 co-relation queries the response was YES. Maximal size of possible extension queue 1060. Compared 348302 event pairs, 2890 based on Foata normal form. 329/32248 useless extension candidates. Maximal degree in co-relation 337613. Up to 16963 conditions per place. [2023-08-29 02:24:48,718 INFO L137 encePairwiseOnDemand]: 337/355 looper letters, 1351 selfloop transitions, 877 changer transitions 0/2640 dead transitions. [2023-08-29 02:24:48,718 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 579 places, 2640 transitions, 124949 flow [2023-08-29 02:24:48,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-08-29 02:24:48,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2023-08-29 02:24:48,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2853 transitions. [2023-08-29 02:24:48,721 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.38269617706237424 [2023-08-29 02:24:48,721 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 2853 transitions. [2023-08-29 02:24:48,722 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 2853 transitions. [2023-08-29 02:24:48,722 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:24:48,722 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 2853 transitions. [2023-08-29 02:24:48,725 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 135.85714285714286) internal successors, (2853), 21 states have internal predecessors, (2853), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:24:48,730 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 355.0) internal successors, (7810), 22 states have internal predecessors, (7810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:24:48,731 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 355.0) internal successors, (7810), 22 states have internal predecessors, (7810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:24:48,731 INFO L175 Difference]: Start difference. First operand has 559 places, 2464 transitions, 115953 flow. Second operand 21 states and 2853 transitions. [2023-08-29 02:24:48,731 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 579 places, 2640 transitions, 124949 flow [2023-08-29 02:25:16,694 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 574 places, 2640 transitions, 124473 flow, removed 141 selfloop flow, removed 5 redundant places. [2023-08-29 02:25:16,765 INFO L231 Difference]: Finished difference. Result has 581 places, 2484 transitions, 118390 flow [2023-08-29 02:25:16,767 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=355, PETRI_DIFFERENCE_MINUEND_FLOW=115503, PETRI_DIFFERENCE_MINUEND_PLACES=554, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2464, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=857, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1595, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=118390, PETRI_PLACES=581, PETRI_TRANSITIONS=2484} [2023-08-29 02:25:16,767 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 504 predicate places. [2023-08-29 02:25:16,767 INFO L495 AbstractCegarLoop]: Abstraction has has 581 places, 2484 transitions, 118390 flow [2023-08-29 02:25:16,768 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 127.58333333333333) internal successors, (1531), 12 states have internal predecessors, (1531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:25:16,768 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:25:16,768 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 02:25:16,768 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-08-29 02:25:16,768 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 02:25:16,769 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:25:16,769 INFO L85 PathProgramCache]: Analyzing trace with hash 647209279, now seen corresponding path program 8 times [2023-08-29 02:25:16,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:25:16,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266551700] [2023-08-29 02:25:16,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:25:16,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:25:16,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:25:17,297 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 02:25:17,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:25:17,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266551700] [2023-08-29 02:25:17,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [266551700] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:25:17,297 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:25:17,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-29 02:25:17,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947640819] [2023-08-29 02:25:17,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:25:17,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-29 02:25:17,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:25:17,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-29 02:25:17,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2023-08-29 02:25:18,420 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 355 [2023-08-29 02:25:18,421 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 581 places, 2484 transitions, 118390 flow. Second operand has 12 states, 12 states have (on average 127.58333333333333) internal successors, (1531), 12 states have internal predecessors, (1531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:25:18,421 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:25:18,421 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 355 [2023-08-29 02:25:18,421 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:25:50,313 INFO L130 PetriNetUnfolder]: 13939/32684 cut-off events. [2023-08-29 02:25:50,313 INFO L131 PetriNetUnfolder]: For 2137871/2139294 co-relation queries the response was YES. [2023-08-29 02:25:51,503 INFO L83 FinitePrefix]: Finished finitePrefix Result has 343209 conditions, 32684 events. 13939/32684 cut-off events. For 2137871/2139294 co-relation queries the response was YES. Maximal size of possible extension queue 1063. Compared 349446 event pairs, 2929 based on Foata normal form. 396/32403 useless extension candidates. Maximal degree in co-relation 342980. Up to 16951 conditions per place. [2023-08-29 02:25:51,653 INFO L137 encePairwiseOnDemand]: 337/355 looper letters, 1363 selfloop transitions, 886 changer transitions 0/2661 dead transitions. [2023-08-29 02:25:51,653 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 601 places, 2661 transitions, 127111 flow [2023-08-29 02:25:51,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-08-29 02:25:51,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2023-08-29 02:25:51,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2852 transitions. [2023-08-29 02:25:51,657 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.38256203890006707 [2023-08-29 02:25:51,657 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 2852 transitions. [2023-08-29 02:25:51,657 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 2852 transitions. [2023-08-29 02:25:51,657 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:25:51,658 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 2852 transitions. [2023-08-29 02:25:51,660 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 135.8095238095238) internal successors, (2852), 21 states have internal predecessors, (2852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:25:51,664 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 355.0) internal successors, (7810), 22 states have internal predecessors, (7810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:25:51,665 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 355.0) internal successors, (7810), 22 states have internal predecessors, (7810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:25:51,665 INFO L175 Difference]: Start difference. First operand has 581 places, 2484 transitions, 118390 flow. Second operand 21 states and 2852 transitions. [2023-08-29 02:25:51,665 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 601 places, 2661 transitions, 127111 flow [2023-08-29 02:26:22,357 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 591 places, 2661 transitions, 126130 flow, removed 53 selfloop flow, removed 10 redundant places. [2023-08-29 02:26:22,431 INFO L231 Difference]: Finished difference. Result has 600 places, 2510 transitions, 120460 flow [2023-08-29 02:26:22,433 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=355, PETRI_DIFFERENCE_MINUEND_FLOW=117413, PETRI_DIFFERENCE_MINUEND_PLACES=571, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2484, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=860, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1606, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=120460, PETRI_PLACES=600, PETRI_TRANSITIONS=2510} [2023-08-29 02:26:22,433 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 523 predicate places. [2023-08-29 02:26:22,434 INFO L495 AbstractCegarLoop]: Abstraction has has 600 places, 2510 transitions, 120460 flow [2023-08-29 02:26:22,434 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 127.58333333333333) internal successors, (1531), 12 states have internal predecessors, (1531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:26:22,434 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:26:22,434 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:26:22,434 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-08-29 02:26:22,434 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 02:26:22,435 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:26:22,435 INFO L85 PathProgramCache]: Analyzing trace with hash 231007295, now seen corresponding path program 9 times [2023-08-29 02:26:22,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:26:22,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372155363] [2023-08-29 02:26:22,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:26:22,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:26:22,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:26:23,037 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 02:26:23,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:26:23,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372155363] [2023-08-29 02:26:23,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1372155363] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:26:23,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:26:23,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-29 02:26:23,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627849377] [2023-08-29 02:26:23,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:26:23,038 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-29 02:26:23,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:26:23,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-29 02:26:23,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2023-08-29 02:26:23,978 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 355 [2023-08-29 02:26:23,978 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 600 places, 2510 transitions, 120460 flow. Second operand has 12 states, 12 states have (on average 127.58333333333333) internal successors, (1531), 12 states have internal predecessors, (1531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:26:23,978 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:26:23,978 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 355 [2023-08-29 02:26:23,979 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:26:56,912 INFO L130 PetriNetUnfolder]: 13961/32736 cut-off events. [2023-08-29 02:26:56,913 INFO L131 PetriNetUnfolder]: For 2229861/2231275 co-relation queries the response was YES. [2023-08-29 02:26:58,593 INFO L83 FinitePrefix]: Finished finitePrefix Result has 349141 conditions, 32736 events. 13961/32736 cut-off events. For 2229861/2231275 co-relation queries the response was YES. Maximal size of possible extension queue 1068. Compared 350070 event pairs, 2891 based on Foata normal form. 379/32436 useless extension candidates. Maximal degree in co-relation 348903. Up to 17058 conditions per place. [2023-08-29 02:26:58,750 INFO L137 encePairwiseOnDemand]: 337/355 looper letters, 1421 selfloop transitions, 833 changer transitions 0/2666 dead transitions. [2023-08-29 02:26:58,751 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 619 places, 2666 transitions, 128930 flow [2023-08-29 02:26:58,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-08-29 02:26:58,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2023-08-29 02:26:58,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2720 transitions. [2023-08-29 02:26:58,753 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.38309859154929576 [2023-08-29 02:26:58,753 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2720 transitions. [2023-08-29 02:26:58,753 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2720 transitions. [2023-08-29 02:26:58,754 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:26:58,754 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2720 transitions. [2023-08-29 02:26:58,756 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 136.0) internal successors, (2720), 20 states have internal predecessors, (2720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:26:58,760 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 355.0) internal successors, (7455), 21 states have internal predecessors, (7455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:26:58,761 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 355.0) internal successors, (7455), 21 states have internal predecessors, (7455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:26:58,761 INFO L175 Difference]: Start difference. First operand has 600 places, 2510 transitions, 120460 flow. Second operand 20 states and 2720 transitions. [2023-08-29 02:26:58,761 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 619 places, 2666 transitions, 128930 flow Killed by 15