./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 TOGETHER --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 TOGETHER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-29 17:44:42,521 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 17:44:42,523 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 17:44:42,564 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 17:44:42,566 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 17:44:42,570 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 17:44:42,571 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 17:44:42,574 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 17:44:42,576 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 17:44:42,582 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 17:44:42,583 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 17:44:42,585 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 17:44:42,586 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 17:44:42,587 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 17:44:42,589 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 17:44:42,593 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 17:44:42,594 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 17:44:42,595 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 17:44:42,597 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 17:44:42,602 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 17:44:42,604 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 17:44:42,605 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 17:44:42,606 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 17:44:42,606 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 17:44:42,609 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 17:44:42,609 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 17:44:42,609 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 17:44:42,611 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 17:44:42,612 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 17:44:42,613 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 17:44:42,613 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 17:44:42,614 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 17:44:42,616 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 17:44:42,617 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 17:44:42,618 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 17:44:42,618 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 17:44:42,619 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 17:44:42,619 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 17:44:42,625 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 17:44:42,626 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 17:44:42,626 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 17:44:42,628 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-29 17:44:42,663 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 17:44:42,663 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 17:44:42,664 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 17:44:42,665 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 17:44:42,665 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 17:44:42,666 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 17:44:42,666 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 17:44:42,666 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 17:44:42,667 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 17:44:42,667 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 17:44:42,667 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 17:44:42,668 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 17:44:42,668 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 17:44:42,668 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 17:44:42,668 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 17:44:42,668 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-29 17:44:42,669 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 17:44:42,669 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-29 17:44:42,669 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-29 17:44:42,669 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 17:44:42,669 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-29 17:44:42,669 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 17:44:42,670 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-29 17:44:42,670 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 17:44:42,670 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 17:44:42,670 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 17:44:42,670 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 17:44:42,671 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 17:44:42,671 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 17:44:42,671 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-29 17:44:42,671 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 17:44:42,671 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 17:44:42,672 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 17:44:42,672 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-29 17:44:42,672 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 17:44:42,672 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 17:44:42,672 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 17:44:42,672 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 68b918b5051efa1a4363a7cd528e42e31cd4f687fef5116849d37b2131e9c46c Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-29 17:44:43,007 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 17:44:43,033 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 17:44:43,035 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 17:44:43,036 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 17:44:43,037 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 17:44:43,038 INFO L432 ainManager$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 17:44:44,251 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 17:44:44,525 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 17:44:44,525 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/09-regions_02-list_nr.i [2023-08-29 17:44:44,538 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2535d6b32/0c8dd68dc4d34c4fa5f2d8c3a2b7f981/FLAG7bc0a434d [2023-08-29 17:44:44,552 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2535d6b32/0c8dd68dc4d34c4fa5f2d8c3a2b7f981 [2023-08-29 17:44:44,556 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 17:44:44,557 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 17:44:44,558 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 17:44:44,559 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 17:44:44,562 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 17:44:44,562 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 05:44:44" (1/1) ... [2023-08-29 17:44:44,564 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b5adf24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:44:44, skipping insertion in model container [2023-08-29 17:44:44,564 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 05:44:44" (1/1) ... [2023-08-29 17:44:44,569 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 17:44:44,622 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 17:44:45,129 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 17:44:45,140 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 17:44:45,173 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 17:44:45,255 INFO L208 MainTranslator]: Completed translation [2023-08-29 17:44:45,255 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:44:45 WrapperNode [2023-08-29 17:44:45,255 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 17:44:45,256 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 17:44:45,256 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 17:44:45,257 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 17:44:45,261 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:44:45" (1/1) ... [2023-08-29 17:44:45,280 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:44:45" (1/1) ... [2023-08-29 17:44:45,324 INFO L138 Inliner]: procedures = 368, calls = 29, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 172 [2023-08-29 17:44:45,331 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 17:44:45,332 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 17:44:45,332 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 17:44:45,333 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 17:44:45,340 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:44:45" (1/1) ... [2023-08-29 17:44:45,341 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:44:45" (1/1) ... [2023-08-29 17:44:45,359 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:44:45" (1/1) ... [2023-08-29 17:44:45,361 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:44:45" (1/1) ... [2023-08-29 17:44:45,389 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:44:45" (1/1) ... [2023-08-29 17:44:45,391 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:44:45" (1/1) ... [2023-08-29 17:44:45,395 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:44:45" (1/1) ... [2023-08-29 17:44:45,403 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:44:45" (1/1) ... [2023-08-29 17:44:45,406 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 17:44:45,406 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 17:44:45,406 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 17:44:45,407 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 17:44:45,407 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:44:45" (1/1) ... [2023-08-29 17:44:45,412 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 17:44:45,422 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 17:44:45,434 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 17:44:45,441 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 17:44:45,469 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 17:44:45,470 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-08-29 17:44:45,470 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 17:44:45,470 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-29 17:44:45,470 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-29 17:44:45,470 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-29 17:44:45,470 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-29 17:44:45,470 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-29 17:44:45,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-08-29 17:44:45,471 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-29 17:44:45,471 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-29 17:44:45,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-29 17:44:45,471 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 17:44:45,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 17:44:45,472 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 17:44:45,632 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 17:44:45,634 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 17:44:46,086 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 17:44:46,094 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 17:44:46,097 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-29 17:44:46,099 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 05:44:46 BoogieIcfgContainer [2023-08-29 17:44:46,099 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 17:44:46,102 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 17:44:46,102 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 17:44:46,104 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 17:44:46,105 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 05:44:44" (1/3) ... [2023-08-29 17:44:46,105 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6eb3c5bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 05:44:46, skipping insertion in model container [2023-08-29 17:44:46,106 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:44:45" (2/3) ... [2023-08-29 17:44:46,106 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6eb3c5bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 05:44:46, skipping insertion in model container [2023-08-29 17:44:46,107 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 05:44:46" (3/3) ... [2023-08-29 17:44:46,108 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_02-list_nr.i [2023-08-29 17:44:46,115 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-29 17:44:46,123 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 17:44:46,123 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2023-08-29 17:44:46,123 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 17:44:46,220 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-29 17:44:46,255 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 200 places, 196 transitions, 397 flow [2023-08-29 17:44:46,353 INFO L130 PetriNetUnfolder]: 0/195 cut-off events. [2023-08-29 17:44:46,361 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 17:44:46,364 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 17:44:46,365 INFO L82 GeneralOperation]: Start removeDead. Operand has 200 places, 196 transitions, 397 flow [2023-08-29 17:44:46,374 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 199 places, 195 transitions, 393 flow [2023-08-29 17:44:46,378 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 17:44:46,391 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 199 places, 195 transitions, 393 flow [2023-08-29 17:44:46,397 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 199 places, 195 transitions, 393 flow [2023-08-29 17:44:46,398 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 199 places, 195 transitions, 393 flow [2023-08-29 17:44:46,462 INFO L130 PetriNetUnfolder]: 0/195 cut-off events. [2023-08-29 17:44:46,463 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 17:44:46,464 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 17:44:46,467 INFO L119 LiptonReduction]: Number of co-enabled transitions 4092 [2023-08-29 17:45:26,242 WARN L222 SmtUtils]: Spent 14.68s 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 17:45:44,210 WARN L222 SmtUtils]: Spent 14.84s 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 17:45:56,323 WARN L222 SmtUtils]: Spent 12.11s 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 17:46:14,992 WARN L222 SmtUtils]: Spent 17.99s 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 17:46:23,961 WARN L222 SmtUtils]: Spent 8.96s 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 17:47:16,340 WARN L222 SmtUtils]: Spent 52.38s 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 17:47:28,761 WARN L222 SmtUtils]: Spent 12.42s 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 17:47:28,765 INFO L134 LiptonReduction]: Checked pairs total: 38163 [2023-08-29 17:47:28,765 INFO L136 LiptonReduction]: Total number of compositions: 159 [2023-08-29 17:47:28,776 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 17:47:28,780 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;@75e9abea, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 17:47:28,780 INFO L358 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2023-08-29 17:47:28,782 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-29 17:47:28,782 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 17:47:28,782 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:47:28,783 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-29 17:47:28,783 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 17:47:28,787 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:47:28,787 INFO L85 PathProgramCache]: Analyzing trace with hash 643, now seen corresponding path program 1 times [2023-08-29 17:47:28,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:47:28,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075136952] [2023-08-29 17:47:28,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:47:28,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:47:28,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:47:28,898 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 17:47:28,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:47:28,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1075136952] [2023-08-29 17:47:28,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1075136952] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:47:28,899 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:47:28,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-29 17:47:28,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243600479] [2023-08-29 17:47:28,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:47:28,908 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-29 17:47:28,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:47:28,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-29 17:47:28,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-29 17:47:28,941 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 195 out of 355 [2023-08-29 17:47:28,946 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 17:47:28,946 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:47:28,946 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 195 of 355 [2023-08-29 17:47:28,947 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:47:29,094 INFO L130 PetriNetUnfolder]: 78/405 cut-off events. [2023-08-29 17:47:29,095 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 17:47:29,100 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 17:47:29,104 INFO L137 encePairwiseOnDemand]: 347/355 looper letters, 21 selfloop transitions, 0 changer transitions 0/65 dead transitions. [2023-08-29 17:47:29,104 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 65 transitions, 175 flow [2023-08-29 17:47:29,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-29 17:47:29,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-29 17:47:29,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 419 transitions. [2023-08-29 17:47:29,124 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5901408450704225 [2023-08-29 17:47:29,124 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 419 transitions. [2023-08-29 17:47:29,125 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 419 transitions. [2023-08-29 17:47:29,128 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:47:29,130 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 419 transitions. [2023-08-29 17:47:29,134 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 17:47:29,138 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 17:47:29,139 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 17:47:29,140 INFO L175 Difference]: Start difference. First operand has 77 places, 73 transitions, 149 flow. Second operand 2 states and 419 transitions. [2023-08-29 17:47:29,141 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 65 transitions, 175 flow [2023-08-29 17:47:29,143 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 17:47:29,145 INFO L231 Difference]: Finished difference. Result has 69 places, 65 transitions, 132 flow [2023-08-29 17:47:29,147 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 17:47:29,150 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, -8 predicate places. [2023-08-29 17:47:29,153 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 65 transitions, 132 flow [2023-08-29 17:47:29,154 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 17:47:29,154 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:47:29,154 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-29 17:47:29,154 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-29 17:47:29,154 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 17:47:29,162 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:47:29,163 INFO L85 PathProgramCache]: Analyzing trace with hash 616433557, now seen corresponding path program 1 times [2023-08-29 17:47:29,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:47:29,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959038105] [2023-08-29 17:47:29,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:47:29,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:47:29,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:47:29,370 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 17:47:29,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:47:29,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959038105] [2023-08-29 17:47:29,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1959038105] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:47:29,371 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:47:29,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 17:47:29,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025585439] [2023-08-29 17:47:29,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:47:29,373 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 17:47:29,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:47:29,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 17:47:29,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 17:47:29,395 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 179 out of 355 [2023-08-29 17:47:29,396 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 17:47:29,396 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:47:29,396 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 179 of 355 [2023-08-29 17:47:29,396 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:47:29,507 INFO L130 PetriNetUnfolder]: 119/489 cut-off events. [2023-08-29 17:47:29,507 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 17:47:29,508 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 17:47:29,509 INFO L137 encePairwiseOnDemand]: 351/355 looper letters, 25 selfloop transitions, 1 changer transitions 0/62 dead transitions. [2023-08-29 17:47:29,509 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 62 transitions, 178 flow [2023-08-29 17:47:29,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 17:47:29,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 17:47:29,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 566 transitions. [2023-08-29 17:47:29,512 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5314553990610329 [2023-08-29 17:47:29,512 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 566 transitions. [2023-08-29 17:47:29,512 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 566 transitions. [2023-08-29 17:47:29,512 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:47:29,512 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 566 transitions. [2023-08-29 17:47:29,514 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 17:47:29,517 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 17:47:29,518 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 17:47:29,518 INFO L175 Difference]: Start difference. First operand has 69 places, 65 transitions, 132 flow. Second operand 3 states and 566 transitions. [2023-08-29 17:47:29,518 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 62 transitions, 178 flow [2023-08-29 17:47:29,519 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 17:47:29,520 INFO L231 Difference]: Finished difference. Result has 68 places, 62 transitions, 128 flow [2023-08-29 17:47:29,520 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 17:47:29,521 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, -9 predicate places. [2023-08-29 17:47:29,521 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 62 transitions, 128 flow [2023-08-29 17:47:29,522 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 17:47:29,522 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:47:29,522 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:47:29,522 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-29 17:47:29,526 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 17:47:29,528 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:47:29,528 INFO L85 PathProgramCache]: Analyzing trace with hash -1088761223, now seen corresponding path program 1 times [2023-08-29 17:47:29,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:47:29,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248127647] [2023-08-29 17:47:29,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:47:29,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:47:29,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:47:30,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:47:30,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:47:30,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248127647] [2023-08-29 17:47:30,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [248127647] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:47:30,125 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:47:30,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 17:47:30,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98661943] [2023-08-29 17:47:30,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:47:30,126 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 17:47:30,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:47:30,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 17:47:30,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 17:47:30,417 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 355 [2023-08-29 17:47:30,418 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 17:47:30,418 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:47:30,419 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 355 [2023-08-29 17:47:30,419 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:47:30,762 INFO L130 PetriNetUnfolder]: 419/1084 cut-off events. [2023-08-29 17:47:30,763 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 17:47:30,764 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 17:47:30,767 INFO L137 encePairwiseOnDemand]: 341/355 looper letters, 66 selfloop transitions, 37 changer transitions 0/122 dead transitions. [2023-08-29 17:47:30,767 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 122 transitions, 454 flow [2023-08-29 17:47:30,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 17:47:30,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 17:47:30,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 974 transitions. [2023-08-29 17:47:30,770 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4572769953051643 [2023-08-29 17:47:30,770 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 974 transitions. [2023-08-29 17:47:30,770 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 974 transitions. [2023-08-29 17:47:30,771 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:47:30,771 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 974 transitions. [2023-08-29 17:47:30,773 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 17:47:30,777 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 17:47:30,778 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 17:47:30,778 INFO L175 Difference]: Start difference. First operand has 68 places, 62 transitions, 128 flow. Second operand 6 states and 974 transitions. [2023-08-29 17:47:30,778 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 122 transitions, 454 flow [2023-08-29 17:47:30,779 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 17:47:30,781 INFO L231 Difference]: Finished difference. Result has 76 places, 98 transitions, 339 flow [2023-08-29 17:47:30,781 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 17:47:30,782 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, -1 predicate places. [2023-08-29 17:47:30,782 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 98 transitions, 339 flow [2023-08-29 17:47:30,782 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 17:47:30,783 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:47:30,783 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:47:30,783 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-29 17:47:30,783 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 17:47:30,784 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:47:30,784 INFO L85 PathProgramCache]: Analyzing trace with hash -80791827, now seen corresponding path program 1 times [2023-08-29 17:47:30,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:47:30,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75356151] [2023-08-29 17:47:30,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:47:30,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:47:30,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:47:31,119 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 17:47:31,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:47:31,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75356151] [2023-08-29 17:47:31,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [75356151] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:47:31,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:47:31,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 17:47:31,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216084376] [2023-08-29 17:47:31,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:47:31,121 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 17:47:31,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:47:31,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 17:47:31,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 17:47:31,364 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 355 [2023-08-29 17:47:31,365 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 17:47:31,366 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:47:31,366 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 355 [2023-08-29 17:47:31,366 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:47:31,865 INFO L130 PetriNetUnfolder]: 622/1669 cut-off events. [2023-08-29 17:47:31,866 INFO L131 PetriNetUnfolder]: For 233/246 co-relation queries the response was YES. [2023-08-29 17:47:31,868 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 17:47:31,873 INFO L137 encePairwiseOnDemand]: 327/355 looper letters, 135 selfloop transitions, 77 changer transitions 0/246 dead transitions. [2023-08-29 17:47:31,873 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 246 transitions, 1150 flow [2023-08-29 17:47:31,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 17:47:31,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 17:47:31,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1048 transitions. [2023-08-29 17:47:31,877 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.492018779342723 [2023-08-29 17:47:31,877 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1048 transitions. [2023-08-29 17:47:31,877 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1048 transitions. [2023-08-29 17:47:31,877 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:47:31,878 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1048 transitions. [2023-08-29 17:47:31,880 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 17:47:31,883 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 17:47:31,884 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 17:47:31,884 INFO L175 Difference]: Start difference. First operand has 76 places, 98 transitions, 339 flow. Second operand 6 states and 1048 transitions. [2023-08-29 17:47:31,884 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 246 transitions, 1150 flow [2023-08-29 17:47:31,889 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 17:47:31,892 INFO L231 Difference]: Finished difference. Result has 85 places, 171 transitions, 913 flow [2023-08-29 17:47:31,892 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 17:47:31,893 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 8 predicate places. [2023-08-29 17:47:31,893 INFO L495 AbstractCegarLoop]: Abstraction has has 85 places, 171 transitions, 913 flow [2023-08-29 17:47:31,893 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 17:47:31,894 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:47:31,894 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:47:31,894 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-29 17:47:31,894 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 17:47:31,895 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:47:31,895 INFO L85 PathProgramCache]: Analyzing trace with hash -1863694665, now seen corresponding path program 1 times [2023-08-29 17:47:31,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:47:31,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548724302] [2023-08-29 17:47:31,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:47:31,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:47:31,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:47:32,344 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 17:47:32,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:47:32,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548724302] [2023-08-29 17:47:32,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [548724302] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:47:32,345 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:47:32,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 17:47:32,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109240434] [2023-08-29 17:47:32,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:47:32,345 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 17:47:32,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:47:32,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 17:47:32,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-08-29 17:47:33,074 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 355 [2023-08-29 17:47:33,076 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 17:47:33,076 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:47:33,076 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 355 [2023-08-29 17:47:33,076 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:47:33,830 INFO L130 PetriNetUnfolder]: 743/1912 cut-off events. [2023-08-29 17:47:33,830 INFO L131 PetriNetUnfolder]: For 1441/1449 co-relation queries the response was YES. [2023-08-29 17:47:33,834 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 17:47:33,841 INFO L137 encePairwiseOnDemand]: 341/355 looper letters, 235 selfloop transitions, 64 changer transitions 2/335 dead transitions. [2023-08-29 17:47:33,841 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 335 transitions, 2307 flow [2023-08-29 17:47:33,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-08-29 17:47:33,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-08-29 17:47:33,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2303 transitions. [2023-08-29 17:47:33,848 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4324882629107981 [2023-08-29 17:47:33,848 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2303 transitions. [2023-08-29 17:47:33,848 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2303 transitions. [2023-08-29 17:47:33,849 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:47:33,849 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2303 transitions. [2023-08-29 17:47:33,854 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 17:47:33,860 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 17:47:33,861 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 17:47:33,862 INFO L175 Difference]: Start difference. First operand has 85 places, 171 transitions, 913 flow. Second operand 15 states and 2303 transitions. [2023-08-29 17:47:33,862 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 335 transitions, 2307 flow [2023-08-29 17:47:33,870 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 17:47:33,878 INFO L231 Difference]: Finished difference. Result has 104 places, 203 transitions, 1299 flow [2023-08-29 17:47:33,878 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 17:47:33,881 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 27 predicate places. [2023-08-29 17:47:33,884 INFO L495 AbstractCegarLoop]: Abstraction has has 104 places, 203 transitions, 1299 flow [2023-08-29 17:47:33,885 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 17:47:33,885 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:47:33,885 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:47:33,886 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-29 17:47:33,886 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 17:47:33,886 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:47:33,886 INFO L85 PathProgramCache]: Analyzing trace with hash -1676920082, now seen corresponding path program 1 times [2023-08-29 17:47:33,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:47:33,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582821236] [2023-08-29 17:47:33,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:47:33,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:47:33,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:47:34,414 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 17:47:34,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:47:34,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582821236] [2023-08-29 17:47:34,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1582821236] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:47:34,415 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:47:34,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 17:47:34,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927631098] [2023-08-29 17:47:34,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:47:34,415 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 17:47:34,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:47:34,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 17:47:34,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-08-29 17:47:35,036 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 139 out of 355 [2023-08-29 17:47:35,037 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 17:47:35,037 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:47:35,037 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 139 of 355 [2023-08-29 17:47:35,037 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:47:36,138 INFO L130 PetriNetUnfolder]: 774/2149 cut-off events. [2023-08-29 17:47:36,138 INFO L131 PetriNetUnfolder]: For 2144/2181 co-relation queries the response was YES. [2023-08-29 17:47:36,144 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 17:47:36,152 INFO L137 encePairwiseOnDemand]: 323/355 looper letters, 261 selfloop transitions, 121 changer transitions 2/424 dead transitions. [2023-08-29 17:47:36,153 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 424 transitions, 3169 flow [2023-08-29 17:47:36,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-29 17:47:36,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-29 17:47:36,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1960 transitions. [2023-08-29 17:47:36,158 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.460093896713615 [2023-08-29 17:47:36,158 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1960 transitions. [2023-08-29 17:47:36,158 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1960 transitions. [2023-08-29 17:47:36,159 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:47:36,159 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1960 transitions. [2023-08-29 17:47:36,162 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 17:47:36,167 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 17:47:36,168 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 17:47:36,168 INFO L175 Difference]: Start difference. First operand has 104 places, 203 transitions, 1299 flow. Second operand 12 states and 1960 transitions. [2023-08-29 17:47:36,168 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 424 transitions, 3169 flow [2023-08-29 17:47:36,181 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 17:47:36,186 INFO L231 Difference]: Finished difference. Result has 125 places, 258 transitions, 2206 flow [2023-08-29 17:47:36,187 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 17:47:36,187 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 48 predicate places. [2023-08-29 17:47:36,187 INFO L495 AbstractCegarLoop]: Abstraction has has 125 places, 258 transitions, 2206 flow [2023-08-29 17:47:36,188 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 17:47:36,188 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:47:36,188 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:47:36,188 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-29 17:47:36,189 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 17:47:36,189 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:47:36,189 INFO L85 PathProgramCache]: Analyzing trace with hash -1311471964, now seen corresponding path program 2 times [2023-08-29 17:47:36,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:47:36,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471573890] [2023-08-29 17:47:36,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:47:36,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:47:36,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:47:36,614 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 17:47:36,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:47:36,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471573890] [2023-08-29 17:47:36,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [471573890] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:47:36,615 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:47:36,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 17:47:36,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475731059] [2023-08-29 17:47:36,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:47:36,616 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 17:47:36,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:47:36,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 17:47:36,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-08-29 17:47:37,495 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 139 out of 355 [2023-08-29 17:47:37,496 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 17:47:37,496 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:47:37,496 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 139 of 355 [2023-08-29 17:47:37,496 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:47:38,518 INFO L130 PetriNetUnfolder]: 828/2278 cut-off events. [2023-08-29 17:47:38,519 INFO L131 PetriNetUnfolder]: For 4686/4719 co-relation queries the response was YES. [2023-08-29 17:47:38,528 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 17:47:38,539 INFO L137 encePairwiseOnDemand]: 330/355 looper letters, 336 selfloop transitions, 116 changer transitions 3/495 dead transitions. [2023-08-29 17:47:38,539 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 495 transitions, 4591 flow [2023-08-29 17:47:38,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-08-29 17:47:38,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-08-29 17:47:38,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2779 transitions. [2023-08-29 17:47:38,546 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4348982785602504 [2023-08-29 17:47:38,546 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2779 transitions. [2023-08-29 17:47:38,546 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2779 transitions. [2023-08-29 17:47:38,547 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:47:38,547 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2779 transitions. [2023-08-29 17:47:38,552 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 17:47:38,559 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 17:47:38,561 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 17:47:38,561 INFO L175 Difference]: Start difference. First operand has 125 places, 258 transitions, 2206 flow. Second operand 18 states and 2779 transitions. [2023-08-29 17:47:38,561 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 495 transitions, 4591 flow [2023-08-29 17:47:38,588 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 17:47:38,593 INFO L231 Difference]: Finished difference. Result has 148 places, 301 transitions, 2975 flow [2023-08-29 17:47:38,594 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 17:47:38,594 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 71 predicate places. [2023-08-29 17:47:38,595 INFO L495 AbstractCegarLoop]: Abstraction has has 148 places, 301 transitions, 2975 flow [2023-08-29 17:47:38,595 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 17:47:38,595 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:47:38,595 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:47:38,596 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-29 17:47:38,596 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 17:47:38,596 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:47:38,596 INFO L85 PathProgramCache]: Analyzing trace with hash -1375559064, now seen corresponding path program 3 times [2023-08-29 17:47:38,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:47:38,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769161766] [2023-08-29 17:47:38,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:47:38,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:47:38,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:47:39,070 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 17:47:39,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:47:39,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769161766] [2023-08-29 17:47:39,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1769161766] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:47:39,070 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:47:39,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 17:47:39,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840915070] [2023-08-29 17:47:39,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:47:39,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 17:47:39,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:47:39,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 17:47:39,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-08-29 17:47:39,515 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 139 out of 355 [2023-08-29 17:47:39,516 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 17:47:39,516 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:47:39,517 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 139 of 355 [2023-08-29 17:47:39,517 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:47:40,855 INFO L130 PetriNetUnfolder]: 1106/3046 cut-off events. [2023-08-29 17:47:40,855 INFO L131 PetriNetUnfolder]: For 9601/9670 co-relation queries the response was YES. [2023-08-29 17:47:40,866 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 17:47:40,880 INFO L137 encePairwiseOnDemand]: 323/355 looper letters, 317 selfloop transitions, 207 changer transitions 3/567 dead transitions. [2023-08-29 17:47:40,880 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 567 transitions, 5926 flow [2023-08-29 17:47:40,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-08-29 17:47:40,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-08-29 17:47:40,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2690 transitions. [2023-08-29 17:47:40,887 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44573322286661143 [2023-08-29 17:47:40,887 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2690 transitions. [2023-08-29 17:47:40,887 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2690 transitions. [2023-08-29 17:47:40,889 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:47:40,889 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2690 transitions. [2023-08-29 17:47:40,894 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 17:47:40,902 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 17:47:40,903 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 17:47:40,903 INFO L175 Difference]: Start difference. First operand has 148 places, 301 transitions, 2975 flow. Second operand 17 states and 2690 transitions. [2023-08-29 17:47:40,903 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 164 places, 567 transitions, 5926 flow [2023-08-29 17:47:40,955 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 17:47:40,962 INFO L231 Difference]: Finished difference. Result has 174 places, 381 transitions, 4825 flow [2023-08-29 17:47:40,962 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 17:47:40,963 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 97 predicate places. [2023-08-29 17:47:40,963 INFO L495 AbstractCegarLoop]: Abstraction has has 174 places, 381 transitions, 4825 flow [2023-08-29 17:47:40,963 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 17:47:40,964 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:47:40,964 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:47:40,964 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-29 17:47:40,964 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 17:47:40,964 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:47:40,964 INFO L85 PathProgramCache]: Analyzing trace with hash -1412577812, now seen corresponding path program 4 times [2023-08-29 17:47:40,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:47:40,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381642962] [2023-08-29 17:47:40,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:47:40,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:47:40,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:47:41,422 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 17:47:41,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:47:41,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381642962] [2023-08-29 17:47:41,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [381642962] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:47:41,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:47:41,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 17:47:41,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233888626] [2023-08-29 17:47:41,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:47:41,426 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 17:47:41,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:47:41,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 17:47:41,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-08-29 17:47:42,205 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 139 out of 355 [2023-08-29 17:47:42,206 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 17:47:42,207 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:47:42,207 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 139 of 355 [2023-08-29 17:47:42,207 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:47:43,650 INFO L130 PetriNetUnfolder]: 1403/3870 cut-off events. [2023-08-29 17:47:43,650 INFO L131 PetriNetUnfolder]: For 19855/19987 co-relation queries the response was YES. [2023-08-29 17:47:43,668 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 17:47:43,685 INFO L137 encePairwiseOnDemand]: 323/355 looper letters, 365 selfloop transitions, 238 changer transitions 2/645 dead transitions. [2023-08-29 17:47:43,685 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 187 places, 645 transitions, 8337 flow [2023-08-29 17:47:43,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-29 17:47:43,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-29 17:47:43,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2258 transitions. [2023-08-29 17:47:43,691 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45432595573440643 [2023-08-29 17:47:43,691 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2258 transitions. [2023-08-29 17:47:43,691 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2258 transitions. [2023-08-29 17:47:43,693 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:47:43,693 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2258 transitions. [2023-08-29 17:47:43,742 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 17:47:43,747 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 17:47:43,748 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 17:47:43,748 INFO L175 Difference]: Start difference. First operand has 174 places, 381 transitions, 4825 flow. Second operand 14 states and 2258 transitions. [2023-08-29 17:47:43,748 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 187 places, 645 transitions, 8337 flow [2023-08-29 17:47:43,853 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 17:47:43,859 INFO L231 Difference]: Finished difference. Result has 195 places, 460 transitions, 6983 flow [2023-08-29 17:47:43,859 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 17:47:43,860 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 118 predicate places. [2023-08-29 17:47:43,860 INFO L495 AbstractCegarLoop]: Abstraction has has 195 places, 460 transitions, 6983 flow [2023-08-29 17:47:43,860 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 17:47:43,861 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:47:43,861 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:47:43,861 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-29 17:47:43,861 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 17:47:43,861 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:47:43,861 INFO L85 PathProgramCache]: Analyzing trace with hash 1902450344, now seen corresponding path program 5 times [2023-08-29 17:47:43,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:47:43,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715389432] [2023-08-29 17:47:43,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:47:43,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:47:43,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:47:44,312 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 17:47:44,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:47:44,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715389432] [2023-08-29 17:47:44,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [715389432] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:47:44,313 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:47:44,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 17:47:44,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723672188] [2023-08-29 17:47:44,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:47:44,315 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 17:47:44,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:47:44,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 17:47:44,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-08-29 17:47:44,874 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 139 out of 355 [2023-08-29 17:47:44,876 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 17:47:44,876 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:47:44,876 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 139 of 355 [2023-08-29 17:47:44,876 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:47:46,418 INFO L130 PetriNetUnfolder]: 1727/4752 cut-off events. [2023-08-29 17:47:46,418 INFO L131 PetriNetUnfolder]: For 35507/35745 co-relation queries the response was YES. [2023-08-29 17:47:46,436 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 17:47:46,452 INFO L137 encePairwiseOnDemand]: 323/355 looper letters, 451 selfloop transitions, 307 changer transitions 3/801 dead transitions. [2023-08-29 17:47:46,452 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 210 places, 801 transitions, 12065 flow [2023-08-29 17:47:46,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-08-29 17:47:46,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-08-29 17:47:46,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2542 transitions. [2023-08-29 17:47:46,459 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44753521126760565 [2023-08-29 17:47:46,459 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 2542 transitions. [2023-08-29 17:47:46,459 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 2542 transitions. [2023-08-29 17:47:46,460 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:47:46,460 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 2542 transitions. [2023-08-29 17:47:46,464 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 17:47:46,471 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 17:47:46,472 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 17:47:46,472 INFO L175 Difference]: Start difference. First operand has 195 places, 460 transitions, 6983 flow. Second operand 16 states and 2542 transitions. [2023-08-29 17:47:46,472 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 210 places, 801 transitions, 12065 flow [2023-08-29 17:47:46,695 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 17:47:46,708 INFO L231 Difference]: Finished difference. Result has 219 places, 557 transitions, 9996 flow [2023-08-29 17:47:46,709 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 17:47:46,710 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 142 predicate places. [2023-08-29 17:47:46,710 INFO L495 AbstractCegarLoop]: Abstraction has has 219 places, 557 transitions, 9996 flow [2023-08-29 17:47:46,710 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 17:47:46,711 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:47:46,711 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:47:46,711 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-29 17:47:46,711 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 17:47:46,711 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:47:46,711 INFO L85 PathProgramCache]: Analyzing trace with hash -1150116754, now seen corresponding path program 6 times [2023-08-29 17:47:46,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:47:46,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688722412] [2023-08-29 17:47:46,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:47:46,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:47:46,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:47:47,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:47:47,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:47:47,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688722412] [2023-08-29 17:47:47,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [688722412] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:47:47,151 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:47:47,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 17:47:47,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134359946] [2023-08-29 17:47:47,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:47:47,151 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 17:47:47,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:47:47,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 17:47:47,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-08-29 17:47:47,931 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 139 out of 355 [2023-08-29 17:47:47,932 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 17:47:47,932 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:47:47,932 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 139 of 355 [2023-08-29 17:47:47,932 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:47:49,739 INFO L130 PetriNetUnfolder]: 2122/5818 cut-off events. [2023-08-29 17:47:49,740 INFO L131 PetriNetUnfolder]: For 60696/60990 co-relation queries the response was YES. [2023-08-29 17:47:49,841 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 17:47:49,879 INFO L137 encePairwiseOnDemand]: 323/355 looper letters, 467 selfloop transitions, 361 changer transitions 2/870 dead transitions. [2023-08-29 17:47:49,879 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 232 places, 870 transitions, 15370 flow [2023-08-29 17:47:49,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-29 17:47:49,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-29 17:47:49,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2246 transitions. [2023-08-29 17:47:49,883 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45191146881287725 [2023-08-29 17:47:49,883 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2246 transitions. [2023-08-29 17:47:49,883 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2246 transitions. [2023-08-29 17:47:49,883 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:47:49,884 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2246 transitions. [2023-08-29 17:47:49,886 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 17:47:49,891 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 17:47:49,891 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 17:47:49,892 INFO L175 Difference]: Start difference. First operand has 219 places, 557 transitions, 9996 flow. Second operand 14 states and 2246 transitions. [2023-08-29 17:47:49,892 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 232 places, 870 transitions, 15370 flow [2023-08-29 17:47:50,282 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 17:47:50,294 INFO L231 Difference]: Finished difference. Result has 240 places, 656 transitions, 13507 flow [2023-08-29 17:47:50,295 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 17:47:50,295 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 163 predicate places. [2023-08-29 17:47:50,295 INFO L495 AbstractCegarLoop]: Abstraction has has 240 places, 656 transitions, 13507 flow [2023-08-29 17:47:50,295 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 17:47:50,296 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:47:50,296 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:47:50,296 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-29 17:47:50,296 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 17:47:50,296 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:47:50,296 INFO L85 PathProgramCache]: Analyzing trace with hash -1788471914, now seen corresponding path program 7 times [2023-08-29 17:47:50,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:47:50,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316001127] [2023-08-29 17:47:50,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:47:50,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:47:50,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:47:50,672 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 17:47:50,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:47:50,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316001127] [2023-08-29 17:47:50,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316001127] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:47:50,672 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:47:50,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 17:47:50,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427089161] [2023-08-29 17:47:50,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:47:50,673 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 17:47:50,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:47:50,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 17:47:50,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-08-29 17:47:51,307 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 139 out of 355 [2023-08-29 17:47:51,308 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 17:47:51,308 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:47:51,308 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 139 of 355 [2023-08-29 17:47:51,309 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:47:53,503 INFO L130 PetriNetUnfolder]: 2330/6342 cut-off events. [2023-08-29 17:47:53,503 INFO L131 PetriNetUnfolder]: For 87958/88271 co-relation queries the response was YES. [2023-08-29 17:47:53,540 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 17:47:53,569 INFO L137 encePairwiseOnDemand]: 323/355 looper letters, 455 selfloop transitions, 435 changer transitions 3/933 dead transitions. [2023-08-29 17:47:53,569 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 257 places, 933 transitions, 18275 flow [2023-08-29 17:47:53,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-08-29 17:47:53,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-08-29 17:47:53,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2847 transitions. [2023-08-29 17:47:53,574 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44553990610328637 [2023-08-29 17:47:53,574 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2847 transitions. [2023-08-29 17:47:53,574 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2847 transitions. [2023-08-29 17:47:53,575 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:47:53,575 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2847 transitions. [2023-08-29 17:47:53,579 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 17:47:53,584 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 17:47:53,585 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 17:47:53,585 INFO L175 Difference]: Start difference. First operand has 240 places, 656 transitions, 13507 flow. Second operand 18 states and 2847 transitions. [2023-08-29 17:47:53,585 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 257 places, 933 transitions, 18275 flow [2023-08-29 17:47:54,224 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 17:47:54,239 INFO L231 Difference]: Finished difference. Result has 269 places, 717 transitions, 16715 flow [2023-08-29 17:47:54,240 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 17:47:54,240 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 192 predicate places. [2023-08-29 17:47:54,240 INFO L495 AbstractCegarLoop]: Abstraction has has 269 places, 717 transitions, 16715 flow [2023-08-29 17:47:54,241 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 17:47:54,241 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:47:54,241 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:47:54,241 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-29 17:47:54,241 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 17:47:54,242 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:47:54,242 INFO L85 PathProgramCache]: Analyzing trace with hash 2040545132, now seen corresponding path program 8 times [2023-08-29 17:47:54,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:47:54,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821020483] [2023-08-29 17:47:54,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:47:54,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:47:54,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:47:54,649 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 17:47:54,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:47:54,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821020483] [2023-08-29 17:47:54,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [821020483] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:47:54,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:47:54,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 17:47:54,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434261160] [2023-08-29 17:47:54,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:47:54,651 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 17:47:54,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:47:54,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 17:47:54,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-08-29 17:47:55,370 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 139 out of 355 [2023-08-29 17:47:55,371 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 17:47:55,371 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:47:55,371 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 139 of 355 [2023-08-29 17:47:55,372 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:47:57,735 INFO L130 PetriNetUnfolder]: 2654/7280 cut-off events. [2023-08-29 17:47:57,735 INFO L131 PetriNetUnfolder]: For 128521/129053 co-relation queries the response was YES. [2023-08-29 17:47:57,776 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 17:47:57,800 INFO L137 encePairwiseOnDemand]: 323/355 looper letters, 558 selfloop transitions, 440 changer transitions 2/1040 dead transitions. [2023-08-29 17:47:57,801 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 282 places, 1040 transitions, 23358 flow [2023-08-29 17:47:57,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-29 17:47:57,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-29 17:47:57,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2233 transitions. [2023-08-29 17:47:57,804 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44929577464788734 [2023-08-29 17:47:57,804 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2233 transitions. [2023-08-29 17:47:57,804 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2233 transitions. [2023-08-29 17:47:57,805 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:47:57,805 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2233 transitions. [2023-08-29 17:47:57,807 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 17:47:57,811 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 17:47:57,812 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 17:47:57,812 INFO L175 Difference]: Start difference. First operand has 269 places, 717 transitions, 16715 flow. Second operand 14 states and 2233 transitions. [2023-08-29 17:47:57,812 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 282 places, 1040 transitions, 23358 flow [2023-08-29 17:47:58,729 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 17:47:58,745 INFO L231 Difference]: Finished difference. Result has 291 places, 810 transitions, 20902 flow [2023-08-29 17:47:58,746 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 17:47:58,746 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 214 predicate places. [2023-08-29 17:47:58,746 INFO L495 AbstractCegarLoop]: Abstraction has has 291 places, 810 transitions, 20902 flow [2023-08-29 17:47:58,747 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 17:47:58,747 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:47:58,747 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:47:58,747 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-29 17:47:58,747 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 17:47:58,747 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:47:58,747 INFO L85 PathProgramCache]: Analyzing trace with hash 2124690030, now seen corresponding path program 9 times [2023-08-29 17:47:58,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:47:58,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716902395] [2023-08-29 17:47:58,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:47:58,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:47:58,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:47:59,186 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 17:47:59,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:47:59,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716902395] [2023-08-29 17:47:59,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1716902395] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:47:59,187 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:47:59,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 17:47:59,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627619785] [2023-08-29 17:47:59,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:47:59,188 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 17:47:59,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:47:59,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 17:47:59,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-08-29 17:47:59,791 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 139 out of 355 [2023-08-29 17:47:59,792 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 17:47:59,792 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:47:59,792 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 139 of 355 [2023-08-29 17:47:59,792 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:48:02,581 INFO L130 PetriNetUnfolder]: 2808/7720 cut-off events. [2023-08-29 17:48:02,581 INFO L131 PetriNetUnfolder]: For 164868/165458 co-relation queries the response was YES. [2023-08-29 17:48:02,631 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 17:48:02,652 INFO L137 encePairwiseOnDemand]: 323/355 looper letters, 543 selfloop transitions, 517 changer transitions 3/1103 dead transitions. [2023-08-29 17:48:02,652 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 307 places, 1103 transitions, 26720 flow [2023-08-29 17:48:02,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-08-29 17:48:02,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-08-29 17:48:02,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2694 transitions. [2023-08-29 17:48:02,655 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4463960231980116 [2023-08-29 17:48:02,655 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2694 transitions. [2023-08-29 17:48:02,655 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2694 transitions. [2023-08-29 17:48:02,656 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:48:02,656 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2694 transitions. [2023-08-29 17:48:02,659 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 17:48:02,664 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 17:48:02,664 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 17:48:02,664 INFO L175 Difference]: Start difference. First operand has 291 places, 810 transitions, 20902 flow. Second operand 17 states and 2694 transitions. [2023-08-29 17:48:02,665 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 307 places, 1103 transitions, 26720 flow [2023-08-29 17:48:03,614 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 17:48:03,632 INFO L231 Difference]: Finished difference. Result has 318 places, 875 transitions, 24812 flow [2023-08-29 17:48:03,633 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 17:48:03,633 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 241 predicate places. [2023-08-29 17:48:03,633 INFO L495 AbstractCegarLoop]: Abstraction has has 318 places, 875 transitions, 24812 flow [2023-08-29 17:48:03,634 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 17:48:03,634 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:48:03,634 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:48:03,634 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-29 17:48:03,634 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 17:48:03,635 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:48:03,635 INFO L85 PathProgramCache]: Analyzing trace with hash -2032182478, now seen corresponding path program 10 times [2023-08-29 17:48:03,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:48:03,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886869776] [2023-08-29 17:48:03,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:48:03,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:48:03,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:48:04,072 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 17:48:04,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:48:04,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886869776] [2023-08-29 17:48:04,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1886869776] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:48:04,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:48:04,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 17:48:04,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861498663] [2023-08-29 17:48:04,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:48:04,073 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 17:48:04,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:48:04,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 17:48:04,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-08-29 17:48:04,602 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 139 out of 355 [2023-08-29 17:48:04,603 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 17:48:04,603 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:48:04,603 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 139 of 355 [2023-08-29 17:48:04,603 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:48:07,846 INFO L130 PetriNetUnfolder]: 3029/8343 cut-off events. [2023-08-29 17:48:07,846 INFO L131 PetriNetUnfolder]: For 217740/218440 co-relation queries the response was YES. [2023-08-29 17:48:07,907 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 17:48:07,932 INFO L137 encePairwiseOnDemand]: 324/355 looper letters, 511 selfloop transitions, 594 changer transitions 2/1147 dead transitions. [2023-08-29 17:48:07,932 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 331 places, 1147 transitions, 31304 flow [2023-08-29 17:48:07,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-29 17:48:07,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-29 17:48:07,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2219 transitions. [2023-08-29 17:48:07,934 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44647887323943664 [2023-08-29 17:48:07,934 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2219 transitions. [2023-08-29 17:48:07,934 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2219 transitions. [2023-08-29 17:48:07,935 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:48:07,935 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2219 transitions. [2023-08-29 17:48:07,937 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 17:48:07,941 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 17:48:07,942 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 17:48:07,942 INFO L175 Difference]: Start difference. First operand has 318 places, 875 transitions, 24812 flow. Second operand 14 states and 2219 transitions. [2023-08-29 17:48:07,942 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 331 places, 1147 transitions, 31304 flow [2023-08-29 17:48:09,400 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 17:48:09,421 INFO L231 Difference]: Finished difference. Result has 338 places, 944 transitions, 29447 flow [2023-08-29 17:48:09,422 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 17:48:09,422 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 261 predicate places. [2023-08-29 17:48:09,422 INFO L495 AbstractCegarLoop]: Abstraction has has 338 places, 944 transitions, 29447 flow [2023-08-29 17:48:09,422 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 17:48:09,422 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:48:09,422 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:48:09,422 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-08-29 17:48:09,422 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 17:48:09,423 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:48:09,423 INFO L85 PathProgramCache]: Analyzing trace with hash 2019892068, now seen corresponding path program 11 times [2023-08-29 17:48:09,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:48:09,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904202416] [2023-08-29 17:48:09,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:48:09,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:48:09,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:48:09,798 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 17:48:09,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:48:09,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904202416] [2023-08-29 17:48:09,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [904202416] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:48:09,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:48:09,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 17:48:09,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296365306] [2023-08-29 17:48:09,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:48:09,800 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 17:48:09,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:48:09,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 17:48:09,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-08-29 17:48:10,330 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 139 out of 355 [2023-08-29 17:48:10,331 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 17:48:10,331 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:48:10,331 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 139 of 355 [2023-08-29 17:48:10,331 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:48:13,892 INFO L130 PetriNetUnfolder]: 3197/8802 cut-off events. [2023-08-29 17:48:13,893 INFO L131 PetriNetUnfolder]: For 280484/281213 co-relation queries the response was YES. [2023-08-29 17:48:13,967 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 17:48:13,998 INFO L137 encePairwiseOnDemand]: 326/355 looper letters, 471 selfloop transitions, 629 changer transitions 2/1142 dead transitions. [2023-08-29 17:48:13,998 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 350 places, 1142 transitions, 34762 flow [2023-08-29 17:48:13,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-08-29 17:48:13,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-08-29 17:48:14,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2041 transitions. [2023-08-29 17:48:14,000 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4422535211267606 [2023-08-29 17:48:14,000 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2041 transitions. [2023-08-29 17:48:14,000 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2041 transitions. [2023-08-29 17:48:14,001 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:48:14,001 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2041 transitions. [2023-08-29 17:48:14,003 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 17:48:14,006 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 17:48:14,006 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 17:48:14,006 INFO L175 Difference]: Start difference. First operand has 338 places, 944 transitions, 29447 flow. Second operand 13 states and 2041 transitions. [2023-08-29 17:48:14,007 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 350 places, 1142 transitions, 34762 flow [2023-08-29 17:48:16,002 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 17:48:16,028 INFO L231 Difference]: Finished difference. Result has 360 places, 990 transitions, 33594 flow [2023-08-29 17:48:16,028 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 17:48:16,029 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 283 predicate places. [2023-08-29 17:48:16,029 INFO L495 AbstractCegarLoop]: Abstraction has has 360 places, 990 transitions, 33594 flow [2023-08-29 17:48:16,029 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 17:48:16,029 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:48:16,029 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:48:16,029 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-08-29 17:48:16,030 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 17:48:16,030 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:48:16,030 INFO L85 PathProgramCache]: Analyzing trace with hash -1386061474, now seen corresponding path program 12 times [2023-08-29 17:48:16,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:48:16,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154288341] [2023-08-29 17:48:16,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:48:16,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:48:16,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:48:16,396 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 17:48:16,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:48:16,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154288341] [2023-08-29 17:48:16,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [154288341] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:48:16,396 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:48:16,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 17:48:16,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131787791] [2023-08-29 17:48:16,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:48:16,397 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 17:48:16,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:48:16,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 17:48:16,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-08-29 17:48:16,983 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 139 out of 355 [2023-08-29 17:48:16,984 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 17:48:16,984 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:48:16,984 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 139 of 355 [2023-08-29 17:48:16,984 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:48:20,926 INFO L130 PetriNetUnfolder]: 3345/9255 cut-off events. [2023-08-29 17:48:20,926 INFO L131 PetriNetUnfolder]: For 349872/350572 co-relation queries the response was YES. [2023-08-29 17:48:21,009 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 17:48:21,039 INFO L137 encePairwiseOnDemand]: 324/355 looper letters, 489 selfloop transitions, 706 changer transitions 2/1237 dead transitions. [2023-08-29 17:48:21,039 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 373 places, 1237 transitions, 39785 flow [2023-08-29 17:48:21,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-29 17:48:21,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-29 17:48:21,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2230 transitions. [2023-08-29 17:48:21,041 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.448692152917505 [2023-08-29 17:48:21,041 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2230 transitions. [2023-08-29 17:48:21,041 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2230 transitions. [2023-08-29 17:48:21,041 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:48:21,041 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2230 transitions. [2023-08-29 17:48:21,043 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 17:48:21,045 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 17:48:21,046 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 17:48:21,046 INFO L175 Difference]: Start difference. First operand has 360 places, 990 transitions, 33594 flow. Second operand 14 states and 2230 transitions. [2023-08-29 17:48:21,046 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 373 places, 1237 transitions, 39785 flow [2023-08-29 17:48:23,659 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 17:48:23,688 INFO L231 Difference]: Finished difference. Result has 384 places, 1049 transitions, 38555 flow [2023-08-29 17:48:23,689 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 17:48:23,690 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 307 predicate places. [2023-08-29 17:48:23,690 INFO L495 AbstractCegarLoop]: Abstraction has has 384 places, 1049 transitions, 38555 flow [2023-08-29 17:48:23,690 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 17:48:23,690 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:48:23,690 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:48:23,690 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-08-29 17:48:23,691 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 17:48:23,691 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:48:23,691 INFO L85 PathProgramCache]: Analyzing trace with hash 2026840098, now seen corresponding path program 13 times [2023-08-29 17:48:23,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:48:23,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743454954] [2023-08-29 17:48:23,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:48:23,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:48:23,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:48:24,082 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 17:48:24,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:48:24,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743454954] [2023-08-29 17:48:24,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743454954] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:48:24,083 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:48:24,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 17:48:24,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719281369] [2023-08-29 17:48:24,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:48:24,084 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 17:48:24,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:48:24,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 17:48:24,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-08-29 17:48:24,800 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 139 out of 355 [2023-08-29 17:48:24,800 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 17:48:24,801 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:48:24,801 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 139 of 355 [2023-08-29 17:48:24,801 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:48:29,364 INFO L130 PetriNetUnfolder]: 3493/9686 cut-off events. [2023-08-29 17:48:29,364 INFO L131 PetriNetUnfolder]: For 432155/433011 co-relation queries the response was YES. [2023-08-29 17:48:29,451 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 17:48:29,481 INFO L137 encePairwiseOnDemand]: 325/355 looper letters, 531 selfloop transitions, 692 changer transitions 2/1265 dead transitions. [2023-08-29 17:48:29,481 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 397 places, 1265 transitions, 44662 flow [2023-08-29 17:48:29,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-29 17:48:29,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-29 17:48:29,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2198 transitions. [2023-08-29 17:48:29,484 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4422535211267606 [2023-08-29 17:48:29,484 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2198 transitions. [2023-08-29 17:48:29,484 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2198 transitions. [2023-08-29 17:48:29,485 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:48:29,485 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2198 transitions. [2023-08-29 17:48:29,487 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 17:48:29,490 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 17:48:29,491 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 17:48:29,491 INFO L175 Difference]: Start difference. First operand has 384 places, 1049 transitions, 38555 flow. Second operand 14 states and 2198 transitions. [2023-08-29 17:48:29,491 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 397 places, 1265 transitions, 44662 flow [2023-08-29 17:48:32,869 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 17:48:32,894 INFO L231 Difference]: Finished difference. Result has 406 places, 1097 transitions, 43330 flow [2023-08-29 17:48:32,895 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 17:48:32,896 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 329 predicate places. [2023-08-29 17:48:32,896 INFO L495 AbstractCegarLoop]: Abstraction has has 406 places, 1097 transitions, 43330 flow [2023-08-29 17:48:32,896 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 17:48:32,896 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:48:32,896 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:48:32,896 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-08-29 17:48:32,896 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 17:48:32,897 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:48:32,897 INFO L85 PathProgramCache]: Analyzing trace with hash -1625640513, now seen corresponding path program 1 times [2023-08-29 17:48:32,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:48:32,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275043543] [2023-08-29 17:48:32,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:48:32,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:48:32,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:48:33,136 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 17:48:33,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:48:33,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275043543] [2023-08-29 17:48:33,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1275043543] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:48:33,137 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:48:33,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 17:48:33,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791388672] [2023-08-29 17:48:33,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:48:33,138 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 17:48:33,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:48:33,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 17:48:33,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 17:48:33,314 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 355 [2023-08-29 17:48:33,314 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 17:48:33,314 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:48:33,314 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 355 [2023-08-29 17:48:33,314 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:48:39,901 INFO L130 PetriNetUnfolder]: 5647/14257 cut-off events. [2023-08-29 17:48:39,902 INFO L131 PetriNetUnfolder]: For 639988/640558 co-relation queries the response was YES. [2023-08-29 17:48:40,048 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 17:48:40,102 INFO L137 encePairwiseOnDemand]: 341/355 looper letters, 1014 selfloop transitions, 170 changer transitions 0/1372 dead transitions. [2023-08-29 17:48:40,102 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 411 places, 1372 transitions, 55200 flow [2023-08-29 17:48:40,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 17:48:40,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 17:48:40,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 975 transitions. [2023-08-29 17:48:40,104 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45774647887323944 [2023-08-29 17:48:40,104 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 975 transitions. [2023-08-29 17:48:40,104 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 975 transitions. [2023-08-29 17:48:40,104 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:48:40,105 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 975 transitions. [2023-08-29 17:48:40,106 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 17:48:40,108 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 17:48:40,108 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 17:48:40,108 INFO L175 Difference]: Start difference. First operand has 406 places, 1097 transitions, 43330 flow. Second operand 6 states and 975 transitions. [2023-08-29 17:48:40,108 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 411 places, 1372 transitions, 55200 flow [2023-08-29 17:48:45,357 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 17:48:45,387 INFO L231 Difference]: Finished difference. Result has 412 places, 1236 transitions, 46974 flow [2023-08-29 17:48:45,387 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 17:48:45,388 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 335 predicate places. [2023-08-29 17:48:45,388 INFO L495 AbstractCegarLoop]: Abstraction has has 412 places, 1236 transitions, 46974 flow [2023-08-29 17:48:45,388 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 17:48:45,388 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:48:45,388 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 17:48:45,388 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-08-29 17:48:45,388 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 17:48:45,389 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:48:45,389 INFO L85 PathProgramCache]: Analyzing trace with hash 1086643166, now seen corresponding path program 1 times [2023-08-29 17:48:45,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:48:45,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137967400] [2023-08-29 17:48:45,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:48:45,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:48:45,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:48:45,629 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 17:48:45,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:48:45,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137967400] [2023-08-29 17:48:45,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [137967400] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:48:45,630 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:48:45,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 17:48:45,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620616047] [2023-08-29 17:48:45,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:48:45,630 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 17:48:45,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:48:45,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 17:48:45,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 17:48:45,831 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 150 out of 355 [2023-08-29 17:48:45,832 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 17:48:45,832 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:48:45,832 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 150 of 355 [2023-08-29 17:48:45,832 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:48:54,959 INFO L130 PetriNetUnfolder]: 7995/18963 cut-off events. [2023-08-29 17:48:54,960 INFO L131 PetriNetUnfolder]: For 945441/946370 co-relation queries the response was YES. [2023-08-29 17:48:55,197 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 17:48:55,262 INFO L137 encePairwiseOnDemand]: 333/355 looper letters, 1124 selfloop transitions, 746 changer transitions 4/2189 dead transitions. [2023-08-29 17:48:55,263 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 417 places, 2189 transitions, 91780 flow [2023-08-29 17:48:55,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 17:48:55,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 17:48:55,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1056 transitions. [2023-08-29 17:48:55,264 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49577464788732395 [2023-08-29 17:48:55,264 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1056 transitions. [2023-08-29 17:48:55,264 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1056 transitions. [2023-08-29 17:48:55,265 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:48:55,265 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1056 transitions. [2023-08-29 17:48:55,266 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 17:48:55,267 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 17:48:55,268 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 17:48:55,268 INFO L175 Difference]: Start difference. First operand has 412 places, 1236 transitions, 46974 flow. Second operand 6 states and 1056 transitions. [2023-08-29 17:48:55,268 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 417 places, 2189 transitions, 91780 flow [2023-08-29 17:49:04,300 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 17:49:04,344 INFO L231 Difference]: Finished difference. Result has 422 places, 1804 transitions, 75697 flow [2023-08-29 17:49:04,345 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 17:49:04,345 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 345 predicate places. [2023-08-29 17:49:04,345 INFO L495 AbstractCegarLoop]: Abstraction has has 422 places, 1804 transitions, 75697 flow [2023-08-29 17:49:04,345 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 17:49:04,345 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:49:04,345 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 17:49:04,345 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-08-29 17:49:04,346 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 17:49:04,346 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:49:04,346 INFO L85 PathProgramCache]: Analyzing trace with hash 616594389, now seen corresponding path program 1 times [2023-08-29 17:49:04,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:49:04,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047408983] [2023-08-29 17:49:04,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:49:04,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:49:04,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:49:04,745 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 17:49:04,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:49:04,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047408983] [2023-08-29 17:49:04,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047408983] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:49:04,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:49:04,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 17:49:04,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188564116] [2023-08-29 17:49:04,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:49:04,747 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 17:49:04,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:49:04,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 17:49:04,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-08-29 17:49:05,365 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 355 [2023-08-29 17:49:05,366 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 17:49:05,366 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:49:05,366 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 355 [2023-08-29 17:49:05,366 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:49:18,100 INFO L130 PetriNetUnfolder]: 8186/19746 cut-off events. [2023-08-29 17:49:18,100 INFO L131 PetriNetUnfolder]: For 965988/966775 co-relation queries the response was YES. [2023-08-29 17:49:18,395 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 17:49:18,467 INFO L137 encePairwiseOnDemand]: 341/355 looper letters, 1270 selfloop transitions, 488 changer transitions 2/2084 dead transitions. [2023-08-29 17:49:18,467 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 436 places, 2084 transitions, 87332 flow [2023-08-29 17:49:18,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-08-29 17:49:18,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-08-29 17:49:18,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2306 transitions. [2023-08-29 17:49:18,470 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4330516431924883 [2023-08-29 17:49:18,470 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2306 transitions. [2023-08-29 17:49:18,470 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2306 transitions. [2023-08-29 17:49:18,471 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:49:18,471 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2306 transitions. [2023-08-29 17:49:18,474 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 17:49:18,477 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 17:49:18,477 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 17:49:18,477 INFO L175 Difference]: Start difference. First operand has 422 places, 1804 transitions, 75697 flow. Second operand 15 states and 2306 transitions. [2023-08-29 17:49:18,478 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 436 places, 2084 transitions, 87332 flow [2023-08-29 17:49:29,294 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 17:49:29,340 INFO L231 Difference]: Finished difference. Result has 440 places, 1894 transitions, 79858 flow [2023-08-29 17:49:29,341 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 17:49:29,342 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 363 predicate places. [2023-08-29 17:49:29,342 INFO L495 AbstractCegarLoop]: Abstraction has has 440 places, 1894 transitions, 79858 flow [2023-08-29 17:49:29,342 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 17:49:29,342 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:49:29,342 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 17:49:29,342 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-08-29 17:49:29,342 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 17:49:29,343 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:49:29,343 INFO L85 PathProgramCache]: Analyzing trace with hash 739678113, now seen corresponding path program 1 times [2023-08-29 17:49:29,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:49:29,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972030418] [2023-08-29 17:49:29,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:49:29,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:49:29,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:49:30,177 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 17:49:30,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:49:30,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972030418] [2023-08-29 17:49:30,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972030418] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:49:30,178 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:49:30,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-29 17:49:30,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396637050] [2023-08-29 17:49:30,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:49:30,179 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-29 17:49:30,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:49:30,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-29 17:49:30,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2023-08-29 17:49:31,022 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 355 [2023-08-29 17:49:31,022 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 17:49:31,023 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:49:31,023 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 355 [2023-08-29 17:49:31,023 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:49:44,668 INFO L130 PetriNetUnfolder]: 8287/19806 cut-off events. [2023-08-29 17:49:44,668 INFO L131 PetriNetUnfolder]: For 1020879/1021669 co-relation queries the response was YES. [2023-08-29 17:49:44,952 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 17:49:45,023 INFO L137 encePairwiseOnDemand]: 337/355 looper letters, 1167 selfloop transitions, 542 changer transitions 0/2121 dead transitions. [2023-08-29 17:49:45,023 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 458 places, 2121 transitions, 89194 flow [2023-08-29 17:49:45,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-08-29 17:49:45,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2023-08-29 17:49:45,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2602 transitions. [2023-08-29 17:49:45,026 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.38576723498888066 [2023-08-29 17:49:45,026 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2602 transitions. [2023-08-29 17:49:45,026 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2602 transitions. [2023-08-29 17:49:45,026 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:49:45,027 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2602 transitions. [2023-08-29 17:49:45,029 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 17:49:45,033 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 17:49:45,034 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 17:49:45,034 INFO L175 Difference]: Start difference. First operand has 440 places, 1894 transitions, 79858 flow. Second operand 19 states and 2602 transitions. [2023-08-29 17:49:45,034 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 458 places, 2121 transitions, 89194 flow [2023-08-29 17:49:56,675 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 17:49:56,728 INFO L231 Difference]: Finished difference. Result has 461 places, 1924 transitions, 82360 flow [2023-08-29 17:49:56,730 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 17:49:56,730 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 384 predicate places. [2023-08-29 17:49:56,731 INFO L495 AbstractCegarLoop]: Abstraction has has 461 places, 1924 transitions, 82360 flow [2023-08-29 17:49:56,731 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 17:49:56,731 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:49:56,731 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 17:49:56,731 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-08-29 17:49:56,731 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 17:49:56,732 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:49:56,732 INFO L85 PathProgramCache]: Analyzing trace with hash -240303775, now seen corresponding path program 2 times [2023-08-29 17:49:56,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:49:56,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485313316] [2023-08-29 17:49:56,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:49:56,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:49:56,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:49:57,401 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 17:49:57,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:49:57,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485313316] [2023-08-29 17:49:57,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1485313316] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:49:57,401 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:49:57,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-29 17:49:57,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316732919] [2023-08-29 17:49:57,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:49:57,402 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-29 17:49:57,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:49:57,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-29 17:49:57,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2023-08-29 17:49:58,224 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 355 [2023-08-29 17:49:58,225 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 17:49:58,225 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:49:58,225 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 355 [2023-08-29 17:49:58,225 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:50:21,665 INFO L130 PetriNetUnfolder]: 13512/31841 cut-off events. [2023-08-29 17:50:21,665 INFO L131 PetriNetUnfolder]: For 1633632/1634399 co-relation queries the response was YES. [2023-08-29 17:50:22,589 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 17:50:22,720 INFO L137 encePairwiseOnDemand]: 339/355 looper letters, 2284 selfloop transitions, 473 changer transitions 0/3169 dead transitions. [2023-08-29 17:50:22,720 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 476 places, 3169 transitions, 136933 flow [2023-08-29 17:50:22,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-08-29 17:50:22,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-08-29 17:50:22,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2208 transitions. [2023-08-29 17:50:22,722 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.38873239436619716 [2023-08-29 17:50:22,722 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 2208 transitions. [2023-08-29 17:50:22,722 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 2208 transitions. [2023-08-29 17:50:22,722 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:50:22,723 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 2208 transitions. [2023-08-29 17:50:22,724 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 17:50:22,727 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 17:50:22,727 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 17:50:22,727 INFO L175 Difference]: Start difference. First operand has 461 places, 1924 transitions, 82360 flow. Second operand 16 states and 2208 transitions. [2023-08-29 17:50:22,727 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 476 places, 3169 transitions, 136933 flow [2023-08-29 17:50:44,971 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 17:50:45,036 INFO L231 Difference]: Finished difference. Result has 476 places, 2313 transitions, 103360 flow [2023-08-29 17:50:45,038 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 17:50:45,038 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 399 predicate places. [2023-08-29 17:50:45,038 INFO L495 AbstractCegarLoop]: Abstraction has has 476 places, 2313 transitions, 103360 flow [2023-08-29 17:50:45,039 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 17:50:45,039 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:50:45,039 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 17:50:45,039 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-08-29 17:50:45,039 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 17:50:45,039 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:50:45,039 INFO L85 PathProgramCache]: Analyzing trace with hash -729693943, now seen corresponding path program 3 times [2023-08-29 17:50:45,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:50:45,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491176794] [2023-08-29 17:50:45,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:50:45,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:50:45,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:50:45,743 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 17:50:45,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:50:45,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491176794] [2023-08-29 17:50:45,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1491176794] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:50:45,743 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:50:45,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-29 17:50:45,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990909882] [2023-08-29 17:50:45,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:50:45,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-29 17:50:45,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:50:45,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-29 17:50:45,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2023-08-29 17:50:46,838 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 355 [2023-08-29 17:50:46,838 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 17:50:46,839 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:50:46,839 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 355 [2023-08-29 17:50:46,839 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:51:13,466 INFO L130 PetriNetUnfolder]: 13654/32045 cut-off events. [2023-08-29 17:51:13,467 INFO L131 PetriNetUnfolder]: For 1699258/1700512 co-relation queries the response was YES. [2023-08-29 17:51:14,427 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 17:51:14,559 INFO L137 encePairwiseOnDemand]: 337/355 looper letters, 1286 selfloop transitions, 810 changer transitions 0/2508 dead transitions. [2023-08-29 17:51:14,559 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 493 places, 2508 transitions, 112658 flow [2023-08-29 17:51:14,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-08-29 17:51:14,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-08-29 17:51:14,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2465 transitions. [2023-08-29 17:51:14,561 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3857589984350548 [2023-08-29 17:51:14,561 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2465 transitions. [2023-08-29 17:51:14,561 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2465 transitions. [2023-08-29 17:51:14,561 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:51:14,561 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2465 transitions. [2023-08-29 17:51:14,563 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 17:51:14,567 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 17:51:14,567 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 17:51:14,567 INFO L175 Difference]: Start difference. First operand has 476 places, 2313 transitions, 103360 flow. Second operand 18 states and 2465 transitions. [2023-08-29 17:51:14,567 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 493 places, 2508 transitions, 112658 flow [2023-08-29 17:51:38,153 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 17:51:38,217 INFO L231 Difference]: Finished difference. Result has 500 places, 2345 transitions, 106227 flow [2023-08-29 17:51:38,218 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 17:51:38,219 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 423 predicate places. [2023-08-29 17:51:38,219 INFO L495 AbstractCegarLoop]: Abstraction has has 500 places, 2345 transitions, 106227 flow [2023-08-29 17:51:38,219 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 17:51:38,219 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:51:38,219 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 17:51:38,219 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-08-29 17:51:38,219 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 17:51:38,220 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:51:38,220 INFO L85 PathProgramCache]: Analyzing trace with hash 1878478625, now seen corresponding path program 4 times [2023-08-29 17:51:38,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:51:38,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718707621] [2023-08-29 17:51:38,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:51:38,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:51:38,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:51:38,900 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 17:51:38,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:51:38,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718707621] [2023-08-29 17:51:38,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1718707621] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:51:38,900 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:51:38,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-29 17:51:38,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113072220] [2023-08-29 17:51:38,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:51:38,901 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-29 17:51:38,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:51:38,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-29 17:51:38,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2023-08-29 17:51:39,786 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 355 [2023-08-29 17:51:39,787 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 17:51:39,787 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:51:39,787 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 355 [2023-08-29 17:51:39,787 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:52:07,734 INFO L130 PetriNetUnfolder]: 13844/32577 cut-off events. [2023-08-29 17:52:07,735 INFO L131 PetriNetUnfolder]: For 1808906/1809921 co-relation queries the response was YES. [2023-08-29 17:52:08,756 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 17:52:08,899 INFO L137 encePairwiseOnDemand]: 340/355 looper letters, 1666 selfloop transitions, 569 changer transitions 0/2647 dead transitions. [2023-08-29 17:52:08,899 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 516 places, 2647 transitions, 119795 flow [2023-08-29 17:52:08,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-08-29 17:52:08,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-08-29 17:52:08,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2343 transitions. [2023-08-29 17:52:08,902 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.38823529411764707 [2023-08-29 17:52:08,902 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2343 transitions. [2023-08-29 17:52:08,902 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2343 transitions. [2023-08-29 17:52:08,903 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:52:08,903 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2343 transitions. [2023-08-29 17:52:08,905 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 17:52:08,909 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 17:52:08,910 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 17:52:08,910 INFO L175 Difference]: Start difference. First operand has 500 places, 2345 transitions, 106227 flow. Second operand 17 states and 2343 transitions. [2023-08-29 17:52:08,910 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 516 places, 2647 transitions, 119795 flow [2023-08-29 17:52:34,175 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 17:52:34,241 INFO L231 Difference]: Finished difference. Result has 519 places, 2401 transitions, 109893 flow [2023-08-29 17:52:34,243 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 17:52:34,243 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 442 predicate places. [2023-08-29 17:52:34,243 INFO L495 AbstractCegarLoop]: Abstraction has has 519 places, 2401 transitions, 109893 flow [2023-08-29 17:52:34,243 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 17:52:34,243 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:52:34,243 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 17:52:34,244 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-08-29 17:52:34,244 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 17:52:34,244 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:52:34,244 INFO L85 PathProgramCache]: Analyzing trace with hash 1135436671, now seen corresponding path program 5 times [2023-08-29 17:52:34,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:52:34,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521803963] [2023-08-29 17:52:34,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:52:34,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:52:34,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:52:34,998 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 17:52:34,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:52:34,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521803963] [2023-08-29 17:52:34,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521803963] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:52:34,999 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:52:34,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-29 17:52:34,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88896902] [2023-08-29 17:52:34,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:52:34,999 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-29 17:52:34,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:52:35,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-29 17:52:35,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2023-08-29 17:52:35,895 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 355 [2023-08-29 17:52:35,896 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 17:52:35,896 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:52:35,896 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 355 [2023-08-29 17:52:35,896 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:53:04,944 INFO L130 PetriNetUnfolder]: 13867/32533 cut-off events. [2023-08-29 17:53:04,944 INFO L131 PetriNetUnfolder]: For 1887185/1888583 co-relation queries the response was YES. [2023-08-29 17:53:06,048 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 17:53:06,367 INFO L137 encePairwiseOnDemand]: 337/355 looper letters, 1223 selfloop transitions, 995 changer transitions 0/2630 dead transitions. [2023-08-29 17:53:06,367 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 541 places, 2630 transitions, 120525 flow [2023-08-29 17:53:06,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-08-29 17:53:06,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2023-08-29 17:53:06,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 3122 transitions. [2023-08-29 17:53:06,371 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.382363747703613 [2023-08-29 17:53:06,371 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 3122 transitions. [2023-08-29 17:53:06,371 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 3122 transitions. [2023-08-29 17:53:06,372 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:53:06,372 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 3122 transitions. [2023-08-29 17:53:06,375 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 17:53:06,378 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 17:53:06,379 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 17:53:06,379 INFO L175 Difference]: Start difference. First operand has 519 places, 2401 transitions, 109893 flow. Second operand 23 states and 3122 transitions. [2023-08-29 17:53:06,379 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 541 places, 2630 transitions, 120525 flow [2023-08-29 17:53:31,960 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 17:53:32,053 INFO L231 Difference]: Finished difference. Result has 546 places, 2428 transitions, 113213 flow [2023-08-29 17:53:32,055 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 17:53:32,056 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 469 predicate places. [2023-08-29 17:53:32,056 INFO L495 AbstractCegarLoop]: Abstraction has has 546 places, 2428 transitions, 113213 flow [2023-08-29 17:53:32,056 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 17:53:32,056 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:53:32,056 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 17:53:32,057 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-08-29 17:53:32,057 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 17:53:32,057 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:53:32,057 INFO L85 PathProgramCache]: Analyzing trace with hash -2030116687, now seen corresponding path program 6 times [2023-08-29 17:53:32,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:53:32,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539286450] [2023-08-29 17:53:32,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:53:32,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:53:32,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:53:32,629 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 17:53:32,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:53:32,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539286450] [2023-08-29 17:53:32,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [539286450] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:53:32,629 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:53:32,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-29 17:53:32,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511618874] [2023-08-29 17:53:32,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:53:32,629 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-29 17:53:32,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:53:32,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-29 17:53:32,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2023-08-29 17:53:33,629 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 355 [2023-08-29 17:53:33,629 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 17:53:33,630 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:53:33,630 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 355 [2023-08-29 17:53:33,630 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:54:03,443 INFO L130 PetriNetUnfolder]: 13877/32565 cut-off events. [2023-08-29 17:54:03,443 INFO L131 PetriNetUnfolder]: For 1964707/1966110 co-relation queries the response was YES. [2023-08-29 17:54:04,574 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 17:54:04,895 INFO L137 encePairwiseOnDemand]: 337/355 looper letters, 1386 selfloop transitions, 798 changer transitions 0/2596 dead transitions. [2023-08-29 17:54:04,896 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 562 places, 2596 transitions, 122292 flow [2023-08-29 17:54:04,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-08-29 17:54:04,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-08-29 17:54:04,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2332 transitions. [2023-08-29 17:54:04,899 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3864125932062966 [2023-08-29 17:54:04,899 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2332 transitions. [2023-08-29 17:54:04,899 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2332 transitions. [2023-08-29 17:54:04,900 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:54:04,900 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2332 transitions. [2023-08-29 17:54:04,902 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 17:54:04,905 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 17:54:04,906 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 17:54:04,906 INFO L175 Difference]: Start difference. First operand has 546 places, 2428 transitions, 113213 flow. Second operand 17 states and 2332 transitions. [2023-08-29 17:54:04,906 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 562 places, 2596 transitions, 122292 flow [2023-08-29 17:54:31,334 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 17:54:31,402 INFO L231 Difference]: Finished difference. Result has 559 places, 2464 transitions, 115953 flow [2023-08-29 17:54:31,404 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 17:54:31,405 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 482 predicate places. [2023-08-29 17:54:31,405 INFO L495 AbstractCegarLoop]: Abstraction has has 559 places, 2464 transitions, 115953 flow [2023-08-29 17:54:31,405 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 17:54:31,405 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:54:31,405 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:54:31,405 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-08-29 17:54:31,405 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 17:54:31,406 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:54:31,406 INFO L85 PathProgramCache]: Analyzing trace with hash -416322961, now seen corresponding path program 7 times [2023-08-29 17:54:31,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:54:31,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101064255] [2023-08-29 17:54:31,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:54:31,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:54:31,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:54:31,993 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 17:54:31,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:54:31,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101064255] [2023-08-29 17:54:31,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2101064255] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:54:31,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:54:31,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-29 17:54:31,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342424055] [2023-08-29 17:54:31,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:54:31,994 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-29 17:54:31,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:54:31,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-29 17:54:31,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2023-08-29 17:54:33,006 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 355 [2023-08-29 17:54:33,007 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 17:54:33,007 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:54:33,007 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 355 [2023-08-29 17:54:33,007 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:55:04,517 INFO L130 PetriNetUnfolder]: 13901/32599 cut-off events. [2023-08-29 17:55:04,517 INFO L131 PetriNetUnfolder]: For 2052998/2054241 co-relation queries the response was YES. [2023-08-29 17:55:05,851 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 17:55:05,994 INFO L137 encePairwiseOnDemand]: 337/355 looper letters, 1351 selfloop transitions, 877 changer transitions 0/2640 dead transitions. [2023-08-29 17:55:05,994 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 579 places, 2640 transitions, 124949 flow [2023-08-29 17:55:05,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-08-29 17:55:05,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2023-08-29 17:55:05,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2853 transitions. [2023-08-29 17:55:05,997 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.38269617706237424 [2023-08-29 17:55:05,997 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 2853 transitions. [2023-08-29 17:55:05,997 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 2853 transitions. [2023-08-29 17:55:05,998 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:55:05,998 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 2853 transitions. [2023-08-29 17:55:06,001 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 17:55:06,005 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 17:55:06,006 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 17:55:06,006 INFO L175 Difference]: Start difference. First operand has 559 places, 2464 transitions, 115953 flow. Second operand 21 states and 2853 transitions. [2023-08-29 17:55:06,006 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 579 places, 2640 transitions, 124949 flow [2023-08-29 17:55:33,074 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 17:55:33,143 INFO L231 Difference]: Finished difference. Result has 581 places, 2484 transitions, 118390 flow [2023-08-29 17:55:33,145 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 17:55:33,145 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 504 predicate places. [2023-08-29 17:55:33,145 INFO L495 AbstractCegarLoop]: Abstraction has has 581 places, 2484 transitions, 118390 flow [2023-08-29 17:55:33,146 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 17:55:33,146 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:55:33,146 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 17:55:33,146 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-08-29 17:55:33,146 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 17:55:33,146 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:55:33,147 INFO L85 PathProgramCache]: Analyzing trace with hash 647209279, now seen corresponding path program 8 times [2023-08-29 17:55:33,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:55:33,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273082714] [2023-08-29 17:55:33,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:55:33,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:55:33,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:55:33,675 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 17:55:33,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:55:33,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273082714] [2023-08-29 17:55:33,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1273082714] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:55:33,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:55:33,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-29 17:55:33,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826354708] [2023-08-29 17:55:33,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:55:33,676 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-29 17:55:33,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:55:33,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-29 17:55:33,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2023-08-29 17:55:34,722 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 355 [2023-08-29 17:55:34,723 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 17:55:34,723 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:55:34,723 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 355 [2023-08-29 17:55:34,723 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:56:06,623 INFO L130 PetriNetUnfolder]: 13939/32684 cut-off events. [2023-08-29 17:56:06,623 INFO L131 PetriNetUnfolder]: For 2137871/2139294 co-relation queries the response was YES. [2023-08-29 17:56:07,895 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 17:56:08,215 INFO L137 encePairwiseOnDemand]: 337/355 looper letters, 1363 selfloop transitions, 886 changer transitions 0/2661 dead transitions. [2023-08-29 17:56:08,215 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 601 places, 2661 transitions, 127111 flow [2023-08-29 17:56:08,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-08-29 17:56:08,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2023-08-29 17:56:08,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2852 transitions. [2023-08-29 17:56:08,219 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.38256203890006707 [2023-08-29 17:56:08,219 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 2852 transitions. [2023-08-29 17:56:08,219 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 2852 transitions. [2023-08-29 17:56:08,220 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:56:08,220 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 2852 transitions. [2023-08-29 17:56:08,222 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 17:56:08,226 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 17:56:08,227 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 17:56:08,227 INFO L175 Difference]: Start difference. First operand has 581 places, 2484 transitions, 118390 flow. Second operand 21 states and 2852 transitions. [2023-08-29 17:56:08,227 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 601 places, 2661 transitions, 127111 flow [2023-08-29 17:56:38,029 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 17:56:38,097 INFO L231 Difference]: Finished difference. Result has 600 places, 2510 transitions, 120460 flow [2023-08-29 17:56:38,099 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 17:56:38,100 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 523 predicate places. [2023-08-29 17:56:38,100 INFO L495 AbstractCegarLoop]: Abstraction has has 600 places, 2510 transitions, 120460 flow [2023-08-29 17:56:38,100 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 127.58333333333333) internal successors, (1531), 12 states have internal predecessors, (1531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:56:38,100 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:56:38,100 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:56:38,101 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-08-29 17:56:38,101 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 17:56:38,101 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:56:38,101 INFO L85 PathProgramCache]: Analyzing trace with hash 231007295, now seen corresponding path program 9 times [2023-08-29 17:56:38,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:56:38,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835135940] [2023-08-29 17:56:38,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:56:38,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:56:38,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:56:38,711 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 17:56:38,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:56:38,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835135940] [2023-08-29 17:56:38,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1835135940] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:56:38,712 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:56:38,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-29 17:56:38,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872093635] [2023-08-29 17:56:38,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:56:38,712 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-29 17:56:38,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:56:38,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-29 17:56:38,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2023-08-29 17:56:39,645 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 355 [2023-08-29 17:56:39,646 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 17:56:39,646 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:56:39,646 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 355 [2023-08-29 17:56:39,646 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:57:12,900 INFO L130 PetriNetUnfolder]: 13961/32736 cut-off events. [2023-08-29 17:57:12,900 INFO L131 PetriNetUnfolder]: For 2229861/2231275 co-relation queries the response was YES. [2023-08-29 17:57:14,217 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 17:57:14,534 INFO L137 encePairwiseOnDemand]: 337/355 looper letters, 1421 selfloop transitions, 833 changer transitions 0/2666 dead transitions. [2023-08-29 17:57:14,534 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 619 places, 2666 transitions, 128930 flow [2023-08-29 17:57:14,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-08-29 17:57:14,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2023-08-29 17:57:14,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2720 transitions. [2023-08-29 17:57:14,539 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.38309859154929576 [2023-08-29 17:57:14,539 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2720 transitions. [2023-08-29 17:57:14,539 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2720 transitions. [2023-08-29 17:57:14,540 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:57:14,540 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2720 transitions. [2023-08-29 17:57:14,557 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 17:57:14,591 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 17:57:14,592 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 17:57:14,592 INFO L175 Difference]: Start difference. First operand has 600 places, 2510 transitions, 120460 flow. Second operand 20 states and 2720 transitions. [2023-08-29 17:57:14,592 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 619 places, 2666 transitions, 128930 flow [2023-08-29 17:57:49,603 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 610 places, 2666 transitions, 127537 flow, removed 85 selfloop flow, removed 9 redundant places. [2023-08-29 17:57:49,673 INFO L231 Difference]: Finished difference. Result has 617 places, 2530 transitions, 122081 flow [2023-08-29 17:57:49,674 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=355, PETRI_DIFFERENCE_MINUEND_FLOW=119097, PETRI_DIFFERENCE_MINUEND_PLACES=591, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2510, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=813, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1685, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=122081, PETRI_PLACES=617, PETRI_TRANSITIONS=2530} [2023-08-29 17:57:49,675 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 540 predicate places. [2023-08-29 17:57:49,675 INFO L495 AbstractCegarLoop]: Abstraction has has 617 places, 2530 transitions, 122081 flow [2023-08-29 17:57:49,675 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 17:57:49,675 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:57:49,676 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 17:57:49,676 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-08-29 17:57:49,676 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-08-29 17:57:49,676 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:57:49,676 INFO L85 PathProgramCache]: Analyzing trace with hash 1290849295, now seen corresponding path program 10 times [2023-08-29 17:57:49,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:57:49,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767111998] [2023-08-29 17:57:49,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:57:49,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:57:49,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:57:50,352 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 17:57:50,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:57:50,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767111998] [2023-08-29 17:57:50,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767111998] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:57:50,353 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:57:50,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-29 17:57:50,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337785727] [2023-08-29 17:57:50,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:57:50,353 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-29 17:57:50,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:57:50,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-29 17:57:50,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2023-08-29 17:57:51,396 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 355 [2023-08-29 17:57:51,397 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 617 places, 2530 transitions, 122081 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 17:57:51,397 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:57:51,397 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 355 [2023-08-29 17:57:51,397 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand Killed by 15