./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/pthread-deagle/circular_buffer_bad.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/pthread-deagle/circular_buffer_bad.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 a5ee9b9286f55973fff2cea9c449f3602c5be2a48fed2e7e6cce6beebc18d9bc --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-29 03:48:44,639 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 03:48:44,641 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 03:48:44,666 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 03:48:44,668 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 03:48:44,671 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 03:48:44,675 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 03:48:44,677 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 03:48:44,679 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 03:48:44,684 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 03:48:44,685 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 03:48:44,687 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 03:48:44,687 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 03:48:44,689 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 03:48:44,692 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 03:48:44,695 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 03:48:44,696 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 03:48:44,698 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 03:48:44,700 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 03:48:44,704 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 03:48:44,711 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 03:48:44,712 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 03:48:44,713 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 03:48:44,714 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 03:48:44,721 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 03:48:44,721 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 03:48:44,721 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 03:48:44,723 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 03:48:44,723 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 03:48:44,724 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 03:48:44,725 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 03:48:44,730 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 03:48:44,731 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 03:48:44,732 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 03:48:44,732 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 03:48:44,732 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 03:48:44,733 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 03:48:44,733 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 03:48:44,734 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 03:48:44,734 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 03:48:44,735 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 03:48:44,738 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-29 03:48:44,774 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 03:48:44,774 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 03:48:44,775 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 03:48:44,776 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 03:48:44,776 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 03:48:44,777 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 03:48:44,777 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 03:48:44,777 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 03:48:44,777 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 03:48:44,778 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 03:48:44,778 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 03:48:44,779 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 03:48:44,779 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 03:48:44,779 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 03:48:44,779 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 03:48:44,779 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-29 03:48:44,780 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 03:48:44,780 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-29 03:48:44,780 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-29 03:48:44,780 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 03:48:44,780 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-29 03:48:44,781 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 03:48:44,781 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-29 03:48:44,781 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 03:48:44,781 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 03:48:44,781 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 03:48:44,781 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 03:48:44,782 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 03:48:44,782 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 03:48:44,782 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-29 03:48:44,782 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 03:48:44,782 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 03:48:44,783 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 03:48:44,783 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-29 03:48:44,783 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 03:48:44,783 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 03:48:44,784 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 03:48:44,784 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a5ee9b9286f55973fff2cea9c449f3602c5be2a48fed2e7e6cce6beebc18d9bc Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-29 03:48:45,101 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 03:48:45,120 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 03:48:45,123 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 03:48:45,124 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 03:48:45,125 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 03:48:45,126 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-deagle/circular_buffer_bad.i [2023-08-29 03:48:46,376 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 03:48:46,625 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 03:48:46,629 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-deagle/circular_buffer_bad.i [2023-08-29 03:48:46,648 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/73883af6e/7af56082f5f54ecba7fe933bda25d407/FLAGbff5ee3b3 [2023-08-29 03:48:46,661 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/73883af6e/7af56082f5f54ecba7fe933bda25d407 [2023-08-29 03:48:46,663 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 03:48:46,664 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 03:48:46,665 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 03:48:46,665 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 03:48:46,669 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 03:48:46,670 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 03:48:46" (1/1) ... [2023-08-29 03:48:46,671 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4075e5e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:48:46, skipping insertion in model container [2023-08-29 03:48:46,674 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 03:48:46" (1/1) ... [2023-08-29 03:48:46,680 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 03:48:46,732 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 03:48:47,088 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-deagle/circular_buffer_bad.i[30440,30453] [2023-08-29 03:48:47,098 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-deagle/circular_buffer_bad.i[30895,30908] [2023-08-29 03:48:47,110 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 03:48:47,124 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 03:48:47,175 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-deagle/circular_buffer_bad.i[30440,30453] [2023-08-29 03:48:47,183 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-deagle/circular_buffer_bad.i[30895,30908] [2023-08-29 03:48:47,191 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 03:48:47,241 INFO L208 MainTranslator]: Completed translation [2023-08-29 03:48:47,242 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:48:47 WrapperNode [2023-08-29 03:48:47,242 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 03:48:47,243 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 03:48:47,243 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 03:48:47,244 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 03:48:47,250 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:48:47" (1/1) ... [2023-08-29 03:48:47,281 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:48:47" (1/1) ... [2023-08-29 03:48:47,321 INFO L138 Inliner]: procedures = 168, calls = 36, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 237 [2023-08-29 03:48:47,322 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 03:48:47,323 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 03:48:47,324 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 03:48:47,324 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 03:48:47,332 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:48:47" (1/1) ... [2023-08-29 03:48:47,333 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:48:47" (1/1) ... [2023-08-29 03:48:47,349 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:48:47" (1/1) ... [2023-08-29 03:48:47,351 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:48:47" (1/1) ... [2023-08-29 03:48:47,363 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:48:47" (1/1) ... [2023-08-29 03:48:47,377 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:48:47" (1/1) ... [2023-08-29 03:48:47,378 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:48:47" (1/1) ... [2023-08-29 03:48:47,386 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:48:47" (1/1) ... [2023-08-29 03:48:47,390 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 03:48:47,395 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 03:48:47,396 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 03:48:47,396 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 03:48:47,397 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:48:47" (1/1) ... [2023-08-29 03:48:47,402 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 03:48:47,414 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 03:48:47,430 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 03:48:47,459 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 03:48:47,476 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-29 03:48:47,476 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2023-08-29 03:48:47,476 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2023-08-29 03:48:47,476 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2023-08-29 03:48:47,476 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2023-08-29 03:48:47,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-29 03:48:47,477 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-29 03:48:47,477 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-29 03:48:47,477 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 03:48:47,477 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 03:48:47,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-08-29 03:48:47,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-29 03:48:47,478 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 03:48:47,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 03:48:47,479 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 03:48:47,668 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 03:48:47,670 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 03:48:48,071 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 03:48:48,081 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 03:48:48,081 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-08-29 03:48:48,084 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 03:48:48 BoogieIcfgContainer [2023-08-29 03:48:48,084 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 03:48:48,085 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 03:48:48,086 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 03:48:48,088 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 03:48:48,088 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 03:48:46" (1/3) ... [2023-08-29 03:48:48,089 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@555ad306 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 03:48:48, skipping insertion in model container [2023-08-29 03:48:48,089 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:48:47" (2/3) ... [2023-08-29 03:48:48,092 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@555ad306 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 03:48:48, skipping insertion in model container [2023-08-29 03:48:48,092 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 03:48:48" (3/3) ... [2023-08-29 03:48:48,093 INFO L112 eAbstractionObserver]: Analyzing ICFG circular_buffer_bad.i [2023-08-29 03:48:48,109 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-29 03:48:48,115 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 03:48:48,116 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 31 error locations. [2023-08-29 03:48:48,116 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 03:48:48,223 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-29 03:48:48,255 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 268 places, 273 transitions, 562 flow [2023-08-29 03:48:48,343 INFO L130 PetriNetUnfolder]: 12/271 cut-off events. [2023-08-29 03:48:48,349 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-29 03:48:48,367 INFO L83 FinitePrefix]: Finished finitePrefix Result has 280 conditions, 271 events. 12/271 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 680 event pairs, 0 based on Foata normal form. 0/228 useless extension candidates. Maximal degree in co-relation 186. Up to 2 conditions per place. [2023-08-29 03:48:48,367 INFO L82 GeneralOperation]: Start removeDead. Operand has 268 places, 273 transitions, 562 flow [2023-08-29 03:48:48,375 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 257 places, 262 transitions, 533 flow [2023-08-29 03:48:48,379 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 03:48:48,391 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 257 places, 262 transitions, 533 flow [2023-08-29 03:48:48,398 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 257 places, 262 transitions, 533 flow [2023-08-29 03:48:48,398 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 257 places, 262 transitions, 533 flow [2023-08-29 03:48:48,456 INFO L130 PetriNetUnfolder]: 12/262 cut-off events. [2023-08-29 03:48:48,456 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-29 03:48:48,459 INFO L83 FinitePrefix]: Finished finitePrefix Result has 270 conditions, 262 events. 12/262 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 631 event pairs, 0 based on Foata normal form. 0/219 useless extension candidates. Maximal degree in co-relation 186. Up to 2 conditions per place. [2023-08-29 03:48:48,468 INFO L119 LiptonReduction]: Number of co-enabled transitions 19388 [2023-08-29 03:48:53,868 INFO L134 LiptonReduction]: Checked pairs total: 110534 [2023-08-29 03:48:53,868 INFO L136 LiptonReduction]: Total number of compositions: 210 [2023-08-29 03:48:53,881 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 03:48:53,887 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;@26260b2c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 03:48:53,887 INFO L358 AbstractCegarLoop]: Starting to check reachability of 56 error locations. [2023-08-29 03:48:53,889 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-29 03:48:53,889 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 03:48:53,889 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:48:53,890 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-29 03:48:53,890 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2023-08-29 03:48:53,894 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:48:53,895 INFO L85 PathProgramCache]: Analyzing trace with hash 1007, now seen corresponding path program 1 times [2023-08-29 03:48:53,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:48:53,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561984432] [2023-08-29 03:48:53,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:48:53,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:48:53,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:48:54,007 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 03:48:54,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:48:54,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561984432] [2023-08-29 03:48:54,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561984432] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:48:54,009 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:48:54,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-29 03:48:54,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503421825] [2023-08-29 03:48:54,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:48:54,021 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-29 03:48:54,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:48:54,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-29 03:48:54,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-29 03:48:54,046 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 263 out of 483 [2023-08-29 03:48:54,050 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 113 transitions, 235 flow. Second operand has 2 states, 2 states have (on average 263.5) internal successors, (527), 2 states have internal predecessors, (527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:48:54,050 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:48:54,050 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 263 of 483 [2023-08-29 03:48:54,051 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:48:54,362 INFO L130 PetriNetUnfolder]: 1179/2824 cut-off events. [2023-08-29 03:48:54,362 INFO L131 PetriNetUnfolder]: For 61/61 co-relation queries the response was YES. [2023-08-29 03:48:54,368 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4723 conditions, 2824 events. 1179/2824 cut-off events. For 61/61 co-relation queries the response was YES. Maximal size of possible extension queue 108. Compared 20008 event pairs, 885 based on Foata normal form. 28/2387 useless extension candidates. Maximal degree in co-relation 4487. Up to 1843 conditions per place. [2023-08-29 03:48:54,383 INFO L137 encePairwiseOnDemand]: 472/483 looper letters, 46 selfloop transitions, 0 changer transitions 0/101 dead transitions. [2023-08-29 03:48:54,384 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 101 transitions, 303 flow [2023-08-29 03:48:54,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-29 03:48:54,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-29 03:48:54,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 583 transitions. [2023-08-29 03:48:54,421 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6035196687370601 [2023-08-29 03:48:54,421 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 583 transitions. [2023-08-29 03:48:54,422 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 583 transitions. [2023-08-29 03:48:54,424 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:48:54,426 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 583 transitions. [2023-08-29 03:48:54,444 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 291.5) internal successors, (583), 2 states have internal predecessors, (583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:48:54,449 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 483.0) internal successors, (1449), 3 states have internal predecessors, (1449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:48:54,450 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 483.0) internal successors, (1449), 3 states have internal predecessors, (1449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:48:54,451 INFO L175 Difference]: Start difference. First operand has 111 places, 113 transitions, 235 flow. Second operand 2 states and 583 transitions. [2023-08-29 03:48:54,452 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 101 transitions, 303 flow [2023-08-29 03:48:54,455 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 101 transitions, 298 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-29 03:48:54,511 INFO L231 Difference]: Finished difference. Result has 98 places, 101 transitions, 206 flow [2023-08-29 03:48:54,514 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=483, PETRI_DIFFERENCE_MINUEND_FLOW=206, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=206, PETRI_PLACES=98, PETRI_TRANSITIONS=101} [2023-08-29 03:48:54,519 INFO L281 CegarLoopForPetriNet]: 111 programPoint places, -13 predicate places. [2023-08-29 03:48:54,519 INFO L495 AbstractCegarLoop]: Abstraction has has 98 places, 101 transitions, 206 flow [2023-08-29 03:48:54,521 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 263.5) internal successors, (527), 2 states have internal predecessors, (527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:48:54,521 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:48:54,523 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-29 03:48:54,524 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-29 03:48:54,525 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t1Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2023-08-29 03:48:54,525 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:48:54,525 INFO L85 PathProgramCache]: Analyzing trace with hash -385917861, now seen corresponding path program 1 times [2023-08-29 03:48:54,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:48:54,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026413934] [2023-08-29 03:48:54,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:48:54,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:48:54,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:48:54,708 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 03:48:54,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:48:54,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026413934] [2023-08-29 03:48:54,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026413934] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:48:54,709 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:48:54,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 03:48:54,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861955837] [2023-08-29 03:48:54,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:48:54,710 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 03:48:54,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:48:54,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 03:48:54,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 03:48:54,729 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 257 out of 483 [2023-08-29 03:48:54,730 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 101 transitions, 206 flow. Second operand has 3 states, 3 states have (on average 259.0) internal successors, (777), 3 states have internal predecessors, (777), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:48:54,730 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:48:54,730 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 257 of 483 [2023-08-29 03:48:54,731 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:48:55,244 INFO L130 PetriNetUnfolder]: 2435/5420 cut-off events. [2023-08-29 03:48:55,246 INFO L131 PetriNetUnfolder]: For 17/17 co-relation queries the response was YES. [2023-08-29 03:48:55,254 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9249 conditions, 5420 events. 2435/5420 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 151. Compared 40561 event pairs, 671 based on Foata normal form. 0/4572 useless extension candidates. Maximal degree in co-relation 9246. Up to 2080 conditions per place. [2023-08-29 03:48:55,281 INFO L137 encePairwiseOnDemand]: 478/483 looper letters, 89 selfloop transitions, 4 changer transitions 0/144 dead transitions. [2023-08-29 03:48:55,281 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 144 transitions, 481 flow [2023-08-29 03:48:55,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 03:48:55,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 03:48:55,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 865 transitions. [2023-08-29 03:48:55,284 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5969634230503795 [2023-08-29 03:48:55,284 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 865 transitions. [2023-08-29 03:48:55,284 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 865 transitions. [2023-08-29 03:48:55,285 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:48:55,285 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 865 transitions. [2023-08-29 03:48:55,287 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 288.3333333333333) internal successors, (865), 3 states have internal predecessors, (865), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:48:55,291 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 483.0) internal successors, (1932), 4 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:48:55,292 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 483.0) internal successors, (1932), 4 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:48:55,292 INFO L175 Difference]: Start difference. First operand has 98 places, 101 transitions, 206 flow. Second operand 3 states and 865 transitions. [2023-08-29 03:48:55,292 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 144 transitions, 481 flow [2023-08-29 03:48:55,293 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 144 transitions, 481 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 03:48:55,295 INFO L231 Difference]: Finished difference. Result has 102 places, 105 transitions, 240 flow [2023-08-29 03:48:55,296 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=483, PETRI_DIFFERENCE_MINUEND_FLOW=206, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=240, PETRI_PLACES=102, PETRI_TRANSITIONS=105} [2023-08-29 03:48:55,297 INFO L281 CegarLoopForPetriNet]: 111 programPoint places, -9 predicate places. [2023-08-29 03:48:55,297 INFO L495 AbstractCegarLoop]: Abstraction has has 102 places, 105 transitions, 240 flow [2023-08-29 03:48:55,298 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 259.0) internal successors, (777), 3 states have internal predecessors, (777), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:48:55,298 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:48:55,298 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:48:55,298 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-29 03:48:55,298 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t2Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2023-08-29 03:48:55,299 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:48:55,299 INFO L85 PathProgramCache]: Analyzing trace with hash -235543872, now seen corresponding path program 1 times [2023-08-29 03:48:55,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:48:55,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147630680] [2023-08-29 03:48:55,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:48:55,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:48:55,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:48:55,352 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 03:48:55,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:48:55,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147630680] [2023-08-29 03:48:55,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1147630680] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:48:55,353 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:48:55,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 03:48:55,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807858009] [2023-08-29 03:48:55,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:48:55,354 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 03:48:55,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:48:55,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 03:48:55,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 03:48:55,367 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 257 out of 483 [2023-08-29 03:48:55,368 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 105 transitions, 240 flow. Second operand has 3 states, 3 states have (on average 259.6666666666667) internal successors, (779), 3 states have internal predecessors, (779), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:48:55,368 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:48:55,368 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 257 of 483 [2023-08-29 03:48:55,368 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:48:56,071 INFO L130 PetriNetUnfolder]: 3696/7821 cut-off events. [2023-08-29 03:48:56,072 INFO L131 PetriNetUnfolder]: For 315/315 co-relation queries the response was YES. [2023-08-29 03:48:56,087 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14055 conditions, 7821 events. 3696/7821 cut-off events. For 315/315 co-relation queries the response was YES. Maximal size of possible extension queue 204. Compared 60520 event pairs, 1077 based on Foata normal form. 0/6601 useless extension candidates. Maximal degree in co-relation 14050. Up to 3043 conditions per place. [2023-08-29 03:48:56,122 INFO L137 encePairwiseOnDemand]: 478/483 looper letters, 87 selfloop transitions, 4 changer transitions 0/146 dead transitions. [2023-08-29 03:48:56,123 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 146 transitions, 511 flow [2023-08-29 03:48:56,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 03:48:56,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 03:48:56,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 861 transitions. [2023-08-29 03:48:56,125 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5942028985507246 [2023-08-29 03:48:56,125 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 861 transitions. [2023-08-29 03:48:56,126 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 861 transitions. [2023-08-29 03:48:56,126 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:48:56,126 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 861 transitions. [2023-08-29 03:48:56,128 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 287.0) internal successors, (861), 3 states have internal predecessors, (861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:48:56,131 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 483.0) internal successors, (1932), 4 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:48:56,132 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 483.0) internal successors, (1932), 4 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:48:56,132 INFO L175 Difference]: Start difference. First operand has 102 places, 105 transitions, 240 flow. Second operand 3 states and 861 transitions. [2023-08-29 03:48:56,132 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 146 transitions, 511 flow [2023-08-29 03:48:56,135 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 146 transitions, 501 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 03:48:56,137 INFO L231 Difference]: Finished difference. Result has 104 places, 109 transitions, 266 flow [2023-08-29 03:48:56,137 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=483, PETRI_DIFFERENCE_MINUEND_FLOW=232, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=266, PETRI_PLACES=104, PETRI_TRANSITIONS=109} [2023-08-29 03:48:56,138 INFO L281 CegarLoopForPetriNet]: 111 programPoint places, -7 predicate places. [2023-08-29 03:48:56,138 INFO L495 AbstractCegarLoop]: Abstraction has has 104 places, 109 transitions, 266 flow [2023-08-29 03:48:56,139 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 259.6666666666667) internal successors, (779), 3 states have internal predecessors, (779), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:48:56,139 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:48:56,139 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:48:56,139 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-29 03:48:56,140 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t1Err1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2023-08-29 03:48:56,140 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:48:56,140 INFO L85 PathProgramCache]: Analyzing trace with hash 749379259, now seen corresponding path program 1 times [2023-08-29 03:48:56,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:48:56,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108432029] [2023-08-29 03:48:56,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:48:56,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:48:56,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:48:56,178 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 03:48:56,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:48:56,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108432029] [2023-08-29 03:48:56,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [108432029] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:48:56,179 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:48:56,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 03:48:56,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791377705] [2023-08-29 03:48:56,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:48:56,180 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 03:48:56,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:48:56,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 03:48:56,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 03:48:56,203 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 243 out of 483 [2023-08-29 03:48:56,205 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 109 transitions, 266 flow. Second operand has 3 states, 3 states have (on average 245.66666666666666) internal successors, (737), 3 states have internal predecessors, (737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:48:56,205 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:48:56,205 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 243 of 483 [2023-08-29 03:48:56,205 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:48:57,051 INFO L130 PetriNetUnfolder]: 4513/9726 cut-off events. [2023-08-29 03:48:57,052 INFO L131 PetriNetUnfolder]: For 445/445 co-relation queries the response was YES. [2023-08-29 03:48:57,075 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17776 conditions, 9726 events. 4513/9726 cut-off events. For 445/445 co-relation queries the response was YES. Maximal size of possible extension queue 209. Compared 75874 event pairs, 3323 based on Foata normal form. 0/8466 useless extension candidates. Maximal degree in co-relation 17770. Up to 6864 conditions per place. [2023-08-29 03:48:57,112 INFO L137 encePairwiseOnDemand]: 473/483 looper letters, 75 selfloop transitions, 5 changer transitions 0/129 dead transitions. [2023-08-29 03:48:57,112 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 129 transitions, 474 flow [2023-08-29 03:48:57,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 03:48:57,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 03:48:57,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 810 transitions. [2023-08-29 03:48:57,115 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5590062111801242 [2023-08-29 03:48:57,115 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 810 transitions. [2023-08-29 03:48:57,115 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 810 transitions. [2023-08-29 03:48:57,116 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:48:57,116 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 810 transitions. [2023-08-29 03:48:57,118 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 270.0) internal successors, (810), 3 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:48:57,120 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 483.0) internal successors, (1932), 4 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:48:57,121 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 483.0) internal successors, (1932), 4 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:48:57,122 INFO L175 Difference]: Start difference. First operand has 104 places, 109 transitions, 266 flow. Second operand 3 states and 810 transitions. [2023-08-29 03:48:57,122 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 129 transitions, 474 flow [2023-08-29 03:48:57,125 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 129 transitions, 464 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 03:48:57,127 INFO L231 Difference]: Finished difference. Result has 102 places, 108 transitions, 284 flow [2023-08-29 03:48:57,127 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=483, PETRI_DIFFERENCE_MINUEND_FLOW=250, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=284, PETRI_PLACES=102, PETRI_TRANSITIONS=108} [2023-08-29 03:48:57,128 INFO L281 CegarLoopForPetriNet]: 111 programPoint places, -9 predicate places. [2023-08-29 03:48:57,128 INFO L495 AbstractCegarLoop]: Abstraction has has 102 places, 108 transitions, 284 flow [2023-08-29 03:48:57,128 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 245.66666666666666) internal successors, (737), 3 states have internal predecessors, (737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:48:57,129 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:48:57,129 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:48:57,129 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-29 03:48:57,129 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2023-08-29 03:48:57,130 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:48:57,130 INFO L85 PathProgramCache]: Analyzing trace with hash 1509944257, now seen corresponding path program 1 times [2023-08-29 03:48:57,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:48:57,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407868930] [2023-08-29 03:48:57,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:48:57,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:48:57,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:48:57,497 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 03:48:57,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:48:57,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407868930] [2023-08-29 03:48:57,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [407868930] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:48:57,497 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:48:57,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 03:48:57,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163761631] [2023-08-29 03:48:57,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:48:57,498 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 03:48:57,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:48:57,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 03:48:57,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 03:48:57,622 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 253 out of 483 [2023-08-29 03:48:57,624 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 108 transitions, 284 flow. Second operand has 6 states, 6 states have (on average 254.66666666666666) internal successors, (1528), 6 states have internal predecessors, (1528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:48:57,624 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:48:57,624 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 253 of 483 [2023-08-29 03:48:57,624 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:49:01,382 INFO L130 PetriNetUnfolder]: 27642/49621 cut-off events. [2023-08-29 03:49:01,382 INFO L131 PetriNetUnfolder]: For 6621/6621 co-relation queries the response was YES. [2023-08-29 03:49:01,488 INFO L83 FinitePrefix]: Finished finitePrefix Result has 98042 conditions, 49621 events. 27642/49621 cut-off events. For 6621/6621 co-relation queries the response was YES. Maximal size of possible extension queue 938. Compared 433714 event pairs, 8433 based on Foata normal form. 0/42339 useless extension candidates. Maximal degree in co-relation 98035. Up to 22973 conditions per place. [2023-08-29 03:49:01,690 INFO L137 encePairwiseOnDemand]: 476/483 looper letters, 235 selfloop transitions, 9 changer transitions 0/294 dead transitions. [2023-08-29 03:49:01,691 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 294 transitions, 1257 flow [2023-08-29 03:49:01,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 03:49:01,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 03:49:01,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1738 transitions. [2023-08-29 03:49:01,695 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5997239475500346 [2023-08-29 03:49:01,695 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1738 transitions. [2023-08-29 03:49:01,695 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1738 transitions. [2023-08-29 03:49:01,696 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:49:01,696 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1738 transitions. [2023-08-29 03:49:01,701 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 289.6666666666667) internal successors, (1738), 6 states have internal predecessors, (1738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:49:01,707 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 483.0) internal successors, (3381), 7 states have internal predecessors, (3381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:49:01,708 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 483.0) internal successors, (3381), 7 states have internal predecessors, (3381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:49:01,709 INFO L175 Difference]: Start difference. First operand has 102 places, 108 transitions, 284 flow. Second operand 6 states and 1738 transitions. [2023-08-29 03:49:01,709 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 294 transitions, 1257 flow [2023-08-29 03:49:01,739 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 294 transitions, 1223 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 03:49:01,742 INFO L231 Difference]: Finished difference. Result has 110 places, 116 transitions, 338 flow [2023-08-29 03:49:01,743 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=483, PETRI_DIFFERENCE_MINUEND_FLOW=274, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=338, PETRI_PLACES=110, PETRI_TRANSITIONS=116} [2023-08-29 03:49:01,746 INFO L281 CegarLoopForPetriNet]: 111 programPoint places, -1 predicate places. [2023-08-29 03:49:01,747 INFO L495 AbstractCegarLoop]: Abstraction has has 110 places, 116 transitions, 338 flow [2023-08-29 03:49:01,748 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 254.66666666666666) internal successors, (1528), 6 states have internal predecessors, (1528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:49:01,748 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:49:01,748 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:49:01,748 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-29 03:49:01,748 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t1Err2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2023-08-29 03:49:01,749 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:49:01,749 INFO L85 PathProgramCache]: Analyzing trace with hash -1401016899, now seen corresponding path program 1 times [2023-08-29 03:49:01,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:49:01,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237739776] [2023-08-29 03:49:01,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:49:01,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:49:01,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:49:01,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 03:49:01,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:49:01,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237739776] [2023-08-29 03:49:01,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1237739776] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:49:01,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:49:01,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 03:49:01,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646173102] [2023-08-29 03:49:01,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:49:01,797 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 03:49:01,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:49:01,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 03:49:01,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 03:49:01,813 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 247 out of 483 [2023-08-29 03:49:01,814 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 116 transitions, 338 flow. Second operand has 3 states, 3 states have (on average 250.0) internal successors, (750), 3 states have internal predecessors, (750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:49:01,815 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:49:01,815 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 247 of 483 [2023-08-29 03:49:01,815 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:49:03,947 INFO L130 PetriNetUnfolder]: 12985/28920 cut-off events. [2023-08-29 03:49:03,947 INFO L131 PetriNetUnfolder]: For 2400/2539 co-relation queries the response was YES. [2023-08-29 03:49:04,028 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56004 conditions, 28920 events. 12985/28920 cut-off events. For 2400/2539 co-relation queries the response was YES. Maximal size of possible extension queue 647. Compared 277827 event pairs, 2944 based on Foata normal form. 0/24872 useless extension candidates. Maximal degree in co-relation 55993. Up to 19948 conditions per place. [2023-08-29 03:49:04,130 INFO L137 encePairwiseOnDemand]: 476/483 looper letters, 85 selfloop transitions, 2 changer transitions 0/142 dead transitions. [2023-08-29 03:49:04,130 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 142 transitions, 575 flow [2023-08-29 03:49:04,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 03:49:04,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 03:49:04,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 827 transitions. [2023-08-29 03:49:04,133 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5707384403036577 [2023-08-29 03:49:04,133 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 827 transitions. [2023-08-29 03:49:04,133 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 827 transitions. [2023-08-29 03:49:04,134 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:49:04,134 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 827 transitions. [2023-08-29 03:49:04,137 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 275.6666666666667) internal successors, (827), 3 states have internal predecessors, (827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:49:04,140 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 483.0) internal successors, (1932), 4 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:49:04,141 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 483.0) internal successors, (1932), 4 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:49:04,141 INFO L175 Difference]: Start difference. First operand has 110 places, 116 transitions, 338 flow. Second operand 3 states and 827 transitions. [2023-08-29 03:49:04,142 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 142 transitions, 575 flow [2023-08-29 03:49:04,150 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 142 transitions, 575 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 03:49:04,152 INFO L231 Difference]: Finished difference. Result has 108 places, 113 transitions, 342 flow [2023-08-29 03:49:04,153 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=483, PETRI_DIFFERENCE_MINUEND_FLOW=328, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=342, PETRI_PLACES=108, PETRI_TRANSITIONS=113} [2023-08-29 03:49:04,156 INFO L281 CegarLoopForPetriNet]: 111 programPoint places, -3 predicate places. [2023-08-29 03:49:04,156 INFO L495 AbstractCegarLoop]: Abstraction has has 108 places, 113 transitions, 342 flow [2023-08-29 03:49:04,157 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 250.0) internal successors, (750), 3 states have internal predecessors, (750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:49:04,157 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:49:04,157 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:49:04,157 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-29 03:49:04,157 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t1Err11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2023-08-29 03:49:04,158 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:49:04,158 INFO L85 PathProgramCache]: Analyzing trace with hash 806326866, now seen corresponding path program 1 times [2023-08-29 03:49:04,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:49:04,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945992243] [2023-08-29 03:49:04,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:49:04,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:49:04,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:49:04,198 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 03:49:04,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:49:04,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945992243] [2023-08-29 03:49:04,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1945992243] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:49:04,200 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:49:04,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 03:49:04,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245149505] [2023-08-29 03:49:04,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:49:04,201 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 03:49:04,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:49:04,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 03:49:04,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 03:49:04,216 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 255 out of 483 [2023-08-29 03:49:04,217 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 113 transitions, 342 flow. Second operand has 3 states, 3 states have (on average 258.6666666666667) internal successors, (776), 3 states have internal predecessors, (776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:49:04,217 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:49:04,217 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 255 of 483 [2023-08-29 03:49:04,218 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:49:06,302 INFO L130 PetriNetUnfolder]: 12207/27211 cut-off events. [2023-08-29 03:49:06,303 INFO L131 PetriNetUnfolder]: For 2514/2589 co-relation queries the response was YES. [2023-08-29 03:49:06,385 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53686 conditions, 27211 events. 12207/27211 cut-off events. For 2514/2589 co-relation queries the response was YES. Maximal size of possible extension queue 644. Compared 263825 event pairs, 7505 based on Foata normal form. 0/23268 useless extension candidates. Maximal degree in co-relation 53674. Up to 18994 conditions per place. [2023-08-29 03:49:06,450 INFO L137 encePairwiseOnDemand]: 478/483 looper letters, 78 selfloop transitions, 5 changer transitions 0/138 dead transitions. [2023-08-29 03:49:06,451 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 138 transitions, 570 flow [2023-08-29 03:49:06,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 03:49:06,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 03:49:06,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 840 transitions. [2023-08-29 03:49:06,453 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5797101449275363 [2023-08-29 03:49:06,453 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 840 transitions. [2023-08-29 03:49:06,453 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 840 transitions. [2023-08-29 03:49:06,454 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:49:06,454 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 840 transitions. [2023-08-29 03:49:06,462 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 280.0) internal successors, (840), 3 states have internal predecessors, (840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:49:06,465 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 483.0) internal successors, (1932), 4 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:49:06,466 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 483.0) internal successors, (1932), 4 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:49:06,466 INFO L175 Difference]: Start difference. First operand has 108 places, 113 transitions, 342 flow. Second operand 3 states and 840 transitions. [2023-08-29 03:49:06,467 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 138 transitions, 570 flow [2023-08-29 03:49:06,473 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 138 transitions, 570 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 03:49:06,475 INFO L231 Difference]: Finished difference. Result has 112 places, 116 transitions, 378 flow [2023-08-29 03:49:06,475 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=483, PETRI_DIFFERENCE_MINUEND_FLOW=342, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=378, PETRI_PLACES=112, PETRI_TRANSITIONS=116} [2023-08-29 03:49:06,477 INFO L281 CegarLoopForPetriNet]: 111 programPoint places, 1 predicate places. [2023-08-29 03:49:06,477 INFO L495 AbstractCegarLoop]: Abstraction has has 112 places, 116 transitions, 378 flow [2023-08-29 03:49:06,477 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 258.6666666666667) internal successors, (776), 3 states have internal predecessors, (776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:49:06,478 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:49:06,478 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:49:06,478 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-29 03:49:06,478 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t2Err8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2023-08-29 03:49:06,478 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:49:06,479 INFO L85 PathProgramCache]: Analyzing trace with hash 286693003, now seen corresponding path program 1 times [2023-08-29 03:49:06,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:49:06,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607250546] [2023-08-29 03:49:06,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:49:06,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:49:06,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:49:06,525 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 03:49:06,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:49:06,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607250546] [2023-08-29 03:49:06,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1607250546] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:49:06,526 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:49:06,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-29 03:49:06,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64137447] [2023-08-29 03:49:06,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:49:06,527 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 03:49:06,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:49:06,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 03:49:06,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 03:49:06,536 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 259 out of 483 [2023-08-29 03:49:06,537 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 116 transitions, 378 flow. Second operand has 3 states, 3 states have (on average 262.6666666666667) internal successors, (788), 3 states have internal predecessors, (788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:49:06,537 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:49:06,537 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 259 of 483 [2023-08-29 03:49:06,537 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:49:09,845 INFO L130 PetriNetUnfolder]: 18027/41809 cut-off events. [2023-08-29 03:49:09,845 INFO L131 PetriNetUnfolder]: For 6476/7083 co-relation queries the response was YES. [2023-08-29 03:49:09,994 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83817 conditions, 41809 events. 18027/41809 cut-off events. For 6476/7083 co-relation queries the response was YES. Maximal size of possible extension queue 1029. Compared 448271 event pairs, 8494 based on Foata normal form. 227/36571 useless extension candidates. Maximal degree in co-relation 83803. Up to 18950 conditions per place. [2023-08-29 03:49:10,095 INFO L137 encePairwiseOnDemand]: 479/483 looper letters, 97 selfloop transitions, 2 changer transitions 0/162 dead transitions. [2023-08-29 03:49:10,095 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 162 transitions, 702 flow [2023-08-29 03:49:10,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 03:49:10,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 03:49:10,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 864 transitions. [2023-08-29 03:49:10,098 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5962732919254659 [2023-08-29 03:49:10,098 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 864 transitions. [2023-08-29 03:49:10,098 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 864 transitions. [2023-08-29 03:49:10,098 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:49:10,098 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 864 transitions. [2023-08-29 03:49:10,100 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 288.0) internal successors, (864), 3 states have internal predecessors, (864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:49:10,101 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 483.0) internal successors, (1932), 4 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:49:10,102 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 483.0) internal successors, (1932), 4 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:49:10,102 INFO L175 Difference]: Start difference. First operand has 112 places, 116 transitions, 378 flow. Second operand 3 states and 864 transitions. [2023-08-29 03:49:10,102 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 162 transitions, 702 flow [2023-08-29 03:49:10,133 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 162 transitions, 688 flow, removed 1 selfloop flow, removed 2 redundant places. [2023-08-29 03:49:10,136 INFO L231 Difference]: Finished difference. Result has 113 places, 117 transitions, 380 flow [2023-08-29 03:49:10,136 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=483, PETRI_DIFFERENCE_MINUEND_FLOW=366, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=114, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=380, PETRI_PLACES=113, PETRI_TRANSITIONS=117} [2023-08-29 03:49:10,137 INFO L281 CegarLoopForPetriNet]: 111 programPoint places, 2 predicate places. [2023-08-29 03:49:10,137 INFO L495 AbstractCegarLoop]: Abstraction has has 113 places, 117 transitions, 380 flow [2023-08-29 03:49:10,137 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 262.6666666666667) internal successors, (788), 3 states have internal predecessors, (788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:49:10,138 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:49:10,138 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:49:10,138 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-29 03:49:10,138 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t2Err7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2023-08-29 03:49:10,138 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:49:10,139 INFO L85 PathProgramCache]: Analyzing trace with hash 286696517, now seen corresponding path program 1 times [2023-08-29 03:49:10,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:49:10,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345205390] [2023-08-29 03:49:10,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:49:10,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:49:10,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:49:10,174 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 03:49:10,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:49:10,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345205390] [2023-08-29 03:49:10,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [345205390] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:49:10,175 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:49:10,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-29 03:49:10,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888299958] [2023-08-29 03:49:10,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:49:10,175 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 03:49:10,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:49:10,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 03:49:10,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 03:49:10,185 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 254 out of 483 [2023-08-29 03:49:10,186 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 117 transitions, 380 flow. Second operand has 3 states, 3 states have (on average 257.3333333333333) internal successors, (772), 3 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:49:10,186 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:49:10,186 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 254 of 483 [2023-08-29 03:49:10,186 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:49:13,314 INFO L130 PetriNetUnfolder]: 18126/42226 cut-off events. [2023-08-29 03:49:13,314 INFO L131 PetriNetUnfolder]: For 7574/8033 co-relation queries the response was YES. [2023-08-29 03:49:13,503 INFO L83 FinitePrefix]: Finished finitePrefix Result has 87509 conditions, 42226 events. 18126/42226 cut-off events. For 7574/8033 co-relation queries the response was YES. Maximal size of possible extension queue 1044. Compared 454173 event pairs, 11280 based on Foata normal form. 974/38795 useless extension candidates. Maximal degree in co-relation 87494. Up to 28275 conditions per place. [2023-08-29 03:49:13,764 INFO L137 encePairwiseOnDemand]: 480/483 looper letters, 81 selfloop transitions, 2 changer transitions 0/146 dead transitions. [2023-08-29 03:49:13,765 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 146 transitions, 625 flow [2023-08-29 03:49:13,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 03:49:13,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 03:49:13,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 834 transitions. [2023-08-29 03:49:13,768 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5755693581780539 [2023-08-29 03:49:13,768 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 834 transitions. [2023-08-29 03:49:13,768 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 834 transitions. [2023-08-29 03:49:13,769 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:49:13,769 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 834 transitions. [2023-08-29 03:49:13,771 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 278.0) internal successors, (834), 3 states have internal predecessors, (834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:49:13,773 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 483.0) internal successors, (1932), 4 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:49:13,774 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 483.0) internal successors, (1932), 4 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:49:13,774 INFO L175 Difference]: Start difference. First operand has 113 places, 117 transitions, 380 flow. Second operand 3 states and 834 transitions. [2023-08-29 03:49:13,774 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 146 transitions, 625 flow [2023-08-29 03:49:13,790 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 146 transitions, 623 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 03:49:13,792 INFO L231 Difference]: Finished difference. Result has 115 places, 118 transitions, 392 flow [2023-08-29 03:49:13,792 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=483, PETRI_DIFFERENCE_MINUEND_FLOW=378, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=392, PETRI_PLACES=115, PETRI_TRANSITIONS=118} [2023-08-29 03:49:13,793 INFO L281 CegarLoopForPetriNet]: 111 programPoint places, 4 predicate places. [2023-08-29 03:49:13,793 INFO L495 AbstractCegarLoop]: Abstraction has has 115 places, 118 transitions, 392 flow [2023-08-29 03:49:13,793 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 257.3333333333333) internal successors, (772), 3 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:49:13,793 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:49:13,793 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:49:13,794 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-29 03:49:13,794 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t1Err5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2023-08-29 03:49:13,794 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:49:13,794 INFO L85 PathProgramCache]: Analyzing trace with hash 1753490036, now seen corresponding path program 1 times [2023-08-29 03:49:13,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:49:13,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181699935] [2023-08-29 03:49:13,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:49:13,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:49:13,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:49:13,826 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 03:49:13,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:49:13,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181699935] [2023-08-29 03:49:13,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [181699935] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:49:13,827 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:49:13,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-29 03:49:13,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712104559] [2023-08-29 03:49:13,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:49:13,828 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 03:49:13,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:49:13,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 03:49:13,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 03:49:13,839 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 254 out of 483 [2023-08-29 03:49:13,840 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 118 transitions, 392 flow. Second operand has 3 states, 3 states have (on average 257.3333333333333) internal successors, (772), 3 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:49:13,840 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:49:13,840 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 254 of 483 [2023-08-29 03:49:13,841 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:49:17,327 INFO L130 PetriNetUnfolder]: 18894/44308 cut-off events. [2023-08-29 03:49:17,327 INFO L131 PetriNetUnfolder]: For 11882/12358 co-relation queries the response was YES. [2023-08-29 03:49:17,524 INFO L83 FinitePrefix]: Finished finitePrefix Result has 94014 conditions, 44308 events. 18894/44308 cut-off events. For 11882/12358 co-relation queries the response was YES. Maximal size of possible extension queue 1054. Compared 478515 event pairs, 12151 based on Foata normal form. 170/40847 useless extension candidates. Maximal degree in co-relation 93998. Up to 30134 conditions per place. [2023-08-29 03:49:17,645 INFO L137 encePairwiseOnDemand]: 480/483 looper letters, 78 selfloop transitions, 2 changer transitions 0/143 dead transitions. [2023-08-29 03:49:17,645 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 143 transitions, 634 flow [2023-08-29 03:49:17,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 03:49:17,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 03:49:17,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 831 transitions. [2023-08-29 03:49:17,648 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5734989648033126 [2023-08-29 03:49:17,648 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 831 transitions. [2023-08-29 03:49:17,648 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 831 transitions. [2023-08-29 03:49:17,649 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:49:17,649 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 831 transitions. [2023-08-29 03:49:17,651 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 277.0) internal successors, (831), 3 states have internal predecessors, (831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:49:17,653 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 483.0) internal successors, (1932), 4 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:49:17,653 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 483.0) internal successors, (1932), 4 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:49:17,654 INFO L175 Difference]: Start difference. First operand has 115 places, 118 transitions, 392 flow. Second operand 3 states and 831 transitions. [2023-08-29 03:49:17,654 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 143 transitions, 634 flow [2023-08-29 03:49:17,754 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 143 transitions, 630 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 03:49:17,756 INFO L231 Difference]: Finished difference. Result has 117 places, 119 transitions, 402 flow [2023-08-29 03:49:17,756 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=483, PETRI_DIFFERENCE_MINUEND_FLOW=390, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=402, PETRI_PLACES=117, PETRI_TRANSITIONS=119} [2023-08-29 03:49:17,757 INFO L281 CegarLoopForPetriNet]: 111 programPoint places, 6 predicate places. [2023-08-29 03:49:17,757 INFO L495 AbstractCegarLoop]: Abstraction has has 117 places, 119 transitions, 402 flow [2023-08-29 03:49:17,757 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 257.3333333333333) internal successors, (772), 3 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:49:17,758 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:49:17,758 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 03:49:17,758 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-29 03:49:17,758 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting t1Err12ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2023-08-29 03:49:17,759 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:49:17,759 INFO L85 PathProgramCache]: Analyzing trace with hash -467573221, now seen corresponding path program 1 times [2023-08-29 03:49:17,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:49:17,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804055003] [2023-08-29 03:49:17,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:49:17,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:49:17,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:49:17,785 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 03:49:17,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:49:17,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804055003] [2023-08-29 03:49:17,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1804055003] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:49:17,786 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:49:17,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 03:49:17,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199984725] [2023-08-29 03:49:17,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:49:17,787 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 03:49:17,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:49:17,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 03:49:17,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 03:49:17,801 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 255 out of 483 [2023-08-29 03:49:17,802 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 119 transitions, 402 flow. Second operand has 3 states, 3 states have (on average 259.0) internal successors, (777), 3 states have internal predecessors, (777), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:49:17,803 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:49:17,803 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 255 of 483 [2023-08-29 03:49:17,803 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:49:21,429 INFO L130 PetriNetUnfolder]: 20770/47120 cut-off events. [2023-08-29 03:49:21,429 INFO L131 PetriNetUnfolder]: For 13182/13675 co-relation queries the response was YES. [2023-08-29 03:49:21,624 INFO L83 FinitePrefix]: Finished finitePrefix Result has 103662 conditions, 47120 events. 20770/47120 cut-off events. For 13182/13675 co-relation queries the response was YES. Maximal size of possible extension queue 1085. Compared 499028 event pairs, 13099 based on Foata normal form. 175/43932 useless extension candidates. Maximal degree in co-relation 103645. Up to 33397 conditions per place. [2023-08-29 03:49:21,759 INFO L137 encePairwiseOnDemand]: 478/483 looper letters, 79 selfloop transitions, 7 changer transitions 0/146 dead transitions. [2023-08-29 03:49:21,760 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 146 transitions, 662 flow [2023-08-29 03:49:21,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 03:49:21,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 03:49:21,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 837 transitions. [2023-08-29 03:49:21,762 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.577639751552795 [2023-08-29 03:49:21,762 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 837 transitions. [2023-08-29 03:49:21,763 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 837 transitions. [2023-08-29 03:49:21,763 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:49:21,763 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 837 transitions. [2023-08-29 03:49:21,765 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 279.0) internal successors, (837), 3 states have internal predecessors, (837), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:49:21,767 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 483.0) internal successors, (1932), 4 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:49:21,768 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 483.0) internal successors, (1932), 4 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:49:21,768 INFO L175 Difference]: Start difference. First operand has 117 places, 119 transitions, 402 flow. Second operand 3 states and 837 transitions. [2023-08-29 03:49:21,768 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 146 transitions, 662 flow [2023-08-29 03:49:21,935 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 146 transitions, 660 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 03:49:21,937 INFO L231 Difference]: Finished difference. Result has 119 places, 124 transitions, 451 flow [2023-08-29 03:49:21,937 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=483, PETRI_DIFFERENCE_MINUEND_FLOW=400, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=451, PETRI_PLACES=119, PETRI_TRANSITIONS=124} [2023-08-29 03:49:21,938 INFO L281 CegarLoopForPetriNet]: 111 programPoint places, 8 predicate places. [2023-08-29 03:49:21,938 INFO L495 AbstractCegarLoop]: Abstraction has has 119 places, 124 transitions, 451 flow [2023-08-29 03:49:21,938 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 259.0) internal successors, (777), 3 states have internal predecessors, (777), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:49:21,938 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:49:21,939 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 03:49:21,939 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-29 03:49:21,939 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting t2Err7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2023-08-29 03:49:21,939 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:49:21,939 INFO L85 PathProgramCache]: Analyzing trace with hash 547278315, now seen corresponding path program 1 times [2023-08-29 03:49:21,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:49:21,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696133061] [2023-08-29 03:49:21,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:49:21,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:49:21,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:49:22,052 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 03:49:22,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:49:22,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696133061] [2023-08-29 03:49:22,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [696133061] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:49:22,053 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:49:22,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 03:49:22,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119905708] [2023-08-29 03:49:22,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:49:22,055 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 03:49:22,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:49:22,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 03:49:22,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 03:49:22,119 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 255 out of 483 [2023-08-29 03:49:22,120 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 124 transitions, 451 flow. Second operand has 3 states, 3 states have (on average 259.6666666666667) internal successors, (779), 3 states have internal predecessors, (779), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:49:22,120 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:49:22,121 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 255 of 483 [2023-08-29 03:49:22,121 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:49:28,261 INFO L130 PetriNetUnfolder]: 34716/75276 cut-off events. [2023-08-29 03:49:28,261 INFO L131 PetriNetUnfolder]: For 26939/28575 co-relation queries the response was YES. [2023-08-29 03:49:28,641 INFO L83 FinitePrefix]: Finished finitePrefix Result has 173400 conditions, 75276 events. 34716/75276 cut-off events. For 26939/28575 co-relation queries the response was YES. Maximal size of possible extension queue 1507. Compared 816430 event pairs, 14115 based on Foata normal form. 421/70325 useless extension candidates. Maximal degree in co-relation 173382. Up to 34733 conditions per place. [2023-08-29 03:49:28,842 INFO L137 encePairwiseOnDemand]: 478/483 looper letters, 116 selfloop transitions, 8 changer transitions 0/182 dead transitions. [2023-08-29 03:49:28,843 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 182 transitions, 913 flow [2023-08-29 03:49:28,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 03:49:28,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 03:49:28,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 857 transitions. [2023-08-29 03:49:28,845 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5914423740510697 [2023-08-29 03:49:28,845 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 857 transitions. [2023-08-29 03:49:28,845 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 857 transitions. [2023-08-29 03:49:28,845 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:49:28,845 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 857 transitions. [2023-08-29 03:49:28,847 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 285.6666666666667) internal successors, (857), 3 states have internal predecessors, (857), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:49:28,849 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 483.0) internal successors, (1932), 4 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:49:28,850 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 483.0) internal successors, (1932), 4 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:49:28,850 INFO L175 Difference]: Start difference. First operand has 119 places, 124 transitions, 451 flow. Second operand 3 states and 857 transitions. [2023-08-29 03:49:28,850 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 182 transitions, 913 flow [2023-08-29 03:49:29,055 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 182 transitions, 901 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 03:49:29,056 INFO L231 Difference]: Finished difference. Result has 122 places, 131 transitions, 526 flow [2023-08-29 03:49:29,057 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=483, PETRI_DIFFERENCE_MINUEND_FLOW=444, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=526, PETRI_PLACES=122, PETRI_TRANSITIONS=131} [2023-08-29 03:49:29,057 INFO L281 CegarLoopForPetriNet]: 111 programPoint places, 11 predicate places. [2023-08-29 03:49:29,057 INFO L495 AbstractCegarLoop]: Abstraction has has 122 places, 131 transitions, 526 flow [2023-08-29 03:49:29,058 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 259.6666666666667) internal successors, (779), 3 states have internal predecessors, (779), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:49:29,058 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:49:29,058 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:49:29,058 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-29 03:49:29,058 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2023-08-29 03:49:29,059 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:49:29,059 INFO L85 PathProgramCache]: Analyzing trace with hash -404926251, now seen corresponding path program 1 times [2023-08-29 03:49:29,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:49:29,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136108585] [2023-08-29 03:49:29,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:49:29,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:49:29,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:49:29,103 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 03:49:29,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:49:29,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136108585] [2023-08-29 03:49:29,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2136108585] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:49:29,104 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:49:29,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-29 03:49:29,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351667037] [2023-08-29 03:49:29,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:49:29,105 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 03:49:29,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:49:29,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 03:49:29,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 03:49:29,114 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 259 out of 483 [2023-08-29 03:49:29,121 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 131 transitions, 526 flow. Second operand has 3 states, 3 states have (on average 262.0) internal successors, (786), 3 states have internal predecessors, (786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:49:29,121 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:49:29,121 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 259 of 483 [2023-08-29 03:49:29,121 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:49:37,569 INFO L130 PetriNetUnfolder]: 45053/102072 cut-off events. [2023-08-29 03:49:37,569 INFO L131 PetriNetUnfolder]: For 41877/45127 co-relation queries the response was YES. [2023-08-29 03:49:38,160 INFO L83 FinitePrefix]: Finished finitePrefix Result has 239397 conditions, 102072 events. 45053/102072 cut-off events. For 41877/45127 co-relation queries the response was YES. Maximal size of possible extension queue 2135. Compared 1205388 event pairs, 21448 based on Foata normal form. 872/96977 useless extension candidates. Maximal degree in co-relation 239378. Up to 52675 conditions per place. [2023-08-29 03:49:38,471 INFO L137 encePairwiseOnDemand]: 480/483 looper letters, 113 selfloop transitions, 2 changer transitions 0/185 dead transitions. [2023-08-29 03:49:38,471 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 185 transitions, 957 flow [2023-08-29 03:49:38,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 03:49:38,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 03:49:38,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 864 transitions. [2023-08-29 03:49:38,474 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5962732919254659 [2023-08-29 03:49:38,474 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 864 transitions. [2023-08-29 03:49:38,474 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 864 transitions. [2023-08-29 03:49:38,474 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:49:38,474 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 864 transitions. [2023-08-29 03:49:38,476 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 288.0) internal successors, (864), 3 states have internal predecessors, (864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:49:38,478 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 483.0) internal successors, (1932), 4 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:49:38,479 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 483.0) internal successors, (1932), 4 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:49:38,479 INFO L175 Difference]: Start difference. First operand has 122 places, 131 transitions, 526 flow. Second operand 3 states and 864 transitions. [2023-08-29 03:49:38,479 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 185 transitions, 957 flow [2023-08-29 03:49:39,085 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 185 transitions, 937 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 03:49:39,087 INFO L231 Difference]: Finished difference. Result has 123 places, 132 transitions, 522 flow [2023-08-29 03:49:39,087 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=483, PETRI_DIFFERENCE_MINUEND_FLOW=510, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=129, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=522, PETRI_PLACES=123, PETRI_TRANSITIONS=132} [2023-08-29 03:49:39,087 INFO L281 CegarLoopForPetriNet]: 111 programPoint places, 12 predicate places. [2023-08-29 03:49:39,088 INFO L495 AbstractCegarLoop]: Abstraction has has 123 places, 132 transitions, 522 flow [2023-08-29 03:49:39,088 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 262.0) internal successors, (786), 3 states have internal predecessors, (786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:49:39,088 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:49:39,088 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:49:39,089 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-29 03:49:39,089 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting t1Err5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2023-08-29 03:49:39,089 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:49:39,089 INFO L85 PathProgramCache]: Analyzing trace with hash -147227535, now seen corresponding path program 1 times [2023-08-29 03:49:39,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:49:39,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123375539] [2023-08-29 03:49:39,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:49:39,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:49:39,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:49:39,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 03:49:39,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:49:39,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123375539] [2023-08-29 03:49:39,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [123375539] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:49:39,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:49:39,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 03:49:39,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491235582] [2023-08-29 03:49:39,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:49:39,177 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 03:49:39,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:49:39,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 03:49:39,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 03:49:39,254 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 244 out of 483 [2023-08-29 03:49:39,255 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 132 transitions, 522 flow. Second operand has 3 states, 3 states have (on average 248.33333333333334) internal successors, (745), 3 states have internal predecessors, (745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:49:39,255 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:49:39,255 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 244 of 483 [2023-08-29 03:49:39,255 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:49:57,941 INFO L130 PetriNetUnfolder]: 119940/220546 cut-off events. [2023-08-29 03:49:57,942 INFO L131 PetriNetUnfolder]: For 163279/166959 co-relation queries the response was YES. [2023-08-29 03:49:59,109 INFO L83 FinitePrefix]: Finished finitePrefix Result has 579683 conditions, 220546 events. 119940/220546 cut-off events. For 163279/166959 co-relation queries the response was YES. Maximal size of possible extension queue 3447. Compared 2341338 event pairs, 71246 based on Foata normal form. 723/211025 useless extension candidates. Maximal degree in co-relation 579663. Up to 174385 conditions per place. [2023-08-29 03:49:59,823 INFO L137 encePairwiseOnDemand]: 475/483 looper letters, 100 selfloop transitions, 16 changer transitions 0/163 dead transitions. [2023-08-29 03:49:59,823 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 163 transitions, 870 flow [2023-08-29 03:49:59,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 03:49:59,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 03:49:59,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 817 transitions. [2023-08-29 03:49:59,825 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5638371290545203 [2023-08-29 03:49:59,825 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 817 transitions. [2023-08-29 03:49:59,826 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 817 transitions. [2023-08-29 03:49:59,826 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:49:59,826 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 817 transitions. [2023-08-29 03:49:59,828 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 272.3333333333333) internal successors, (817), 3 states have internal predecessors, (817), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:49:59,829 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 483.0) internal successors, (1932), 4 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:49:59,830 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 483.0) internal successors, (1932), 4 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:49:59,830 INFO L175 Difference]: Start difference. First operand has 123 places, 132 transitions, 522 flow. Second operand 3 states and 817 transitions. [2023-08-29 03:49:59,830 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 163 transitions, 870 flow [2023-08-29 03:50:02,431 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 163 transitions, 868 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 03:50:02,433 INFO L231 Difference]: Finished difference. Result has 125 places, 138 transitions, 606 flow [2023-08-29 03:50:02,433 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=483, PETRI_DIFFERENCE_MINUEND_FLOW=520, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=606, PETRI_PLACES=125, PETRI_TRANSITIONS=138} [2023-08-29 03:50:02,433 INFO L281 CegarLoopForPetriNet]: 111 programPoint places, 14 predicate places. [2023-08-29 03:50:02,434 INFO L495 AbstractCegarLoop]: Abstraction has has 125 places, 138 transitions, 606 flow [2023-08-29 03:50:02,434 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 248.33333333333334) internal successors, (745), 3 states have internal predecessors, (745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:50:02,434 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:50:02,434 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:50:02,434 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-29 03:50:02,434 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting t2Err8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2023-08-29 03:50:02,434 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:50:02,434 INFO L85 PathProgramCache]: Analyzing trace with hash 278061391, now seen corresponding path program 1 times [2023-08-29 03:50:02,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:50:02,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066972374] [2023-08-29 03:50:02,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:50:02,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:50:02,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:50:02,476 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 03:50:02,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:50:02,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066972374] [2023-08-29 03:50:02,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2066972374] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:50:02,477 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:50:02,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 03:50:02,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199108420] [2023-08-29 03:50:02,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:50:02,477 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 03:50:02,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:50:02,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 03:50:02,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 03:50:02,491 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 255 out of 483 [2023-08-29 03:50:02,492 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 138 transitions, 606 flow. Second operand has 3 states, 3 states have (on average 260.6666666666667) internal successors, (782), 3 states have internal predecessors, (782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:50:02,492 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:50:02,492 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 255 of 483 [2023-08-29 03:50:02,492 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:50:13,167 INFO L130 PetriNetUnfolder]: 55567/119773 cut-off events. [2023-08-29 03:50:13,167 INFO L131 PetriNetUnfolder]: For 67450/81796 co-relation queries the response was YES. [2023-08-29 03:50:13,905 INFO L83 FinitePrefix]: Finished finitePrefix Result has 299850 conditions, 119773 events. 55567/119773 cut-off events. For 67450/81796 co-relation queries the response was YES. Maximal size of possible extension queue 2455. Compared 1391952 event pairs, 28848 based on Foata normal form. 1572/114161 useless extension candidates. Maximal degree in co-relation 299829. Up to 83932 conditions per place. [2023-08-29 03:50:14,267 INFO L137 encePairwiseOnDemand]: 479/483 looper letters, 93 selfloop transitions, 6 changer transitions 0/169 dead transitions. [2023-08-29 03:50:14,267 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 169 transitions, 908 flow [2023-08-29 03:50:14,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 03:50:14,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 03:50:14,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 839 transitions. [2023-08-29 03:50:14,269 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5790200138026225 [2023-08-29 03:50:14,269 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 839 transitions. [2023-08-29 03:50:14,269 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 839 transitions. [2023-08-29 03:50:14,270 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:50:14,270 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 839 transitions. [2023-08-29 03:50:14,271 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 279.6666666666667) internal successors, (839), 3 states have internal predecessors, (839), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:50:14,273 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 483.0) internal successors, (1932), 4 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:50:14,274 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 483.0) internal successors, (1932), 4 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:50:14,274 INFO L175 Difference]: Start difference. First operand has 125 places, 138 transitions, 606 flow. Second operand 3 states and 839 transitions. [2023-08-29 03:50:14,274 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 169 transitions, 908 flow [2023-08-29 03:50:14,902 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 169 transitions, 885 flow, removed 3 selfloop flow, removed 1 redundant places. [2023-08-29 03:50:14,903 INFO L231 Difference]: Finished difference. Result has 127 places, 140 transitions, 616 flow [2023-08-29 03:50:14,903 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=483, PETRI_DIFFERENCE_MINUEND_FLOW=584, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=132, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=616, PETRI_PLACES=127, PETRI_TRANSITIONS=140} [2023-08-29 03:50:14,904 INFO L281 CegarLoopForPetriNet]: 111 programPoint places, 16 predicate places. [2023-08-29 03:50:14,904 INFO L495 AbstractCegarLoop]: Abstraction has has 127 places, 140 transitions, 616 flow [2023-08-29 03:50:14,904 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 260.6666666666667) internal successors, (782), 3 states have internal predecessors, (782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:50:14,904 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:50:14,904 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:50:14,905 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-08-29 03:50:14,905 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting t2Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2023-08-29 03:50:14,905 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:50:14,905 INFO L85 PathProgramCache]: Analyzing trace with hash -323288048, now seen corresponding path program 1 times [2023-08-29 03:50:14,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:50:14,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313866839] [2023-08-29 03:50:14,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:50:14,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:50:14,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:50:14,961 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 03:50:14,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:50:14,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313866839] [2023-08-29 03:50:14,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [313866839] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:50:14,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:50:14,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-29 03:50:14,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704134990] [2023-08-29 03:50:14,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:50:14,962 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 03:50:14,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:50:14,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 03:50:14,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 03:50:14,980 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 257 out of 483 [2023-08-29 03:50:14,981 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 140 transitions, 616 flow. Second operand has 3 states, 3 states have (on average 262.0) internal successors, (786), 3 states have internal predecessors, (786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:50:14,981 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:50:14,981 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 257 of 483 [2023-08-29 03:50:14,981 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:50:16,728 INFO L130 PetriNetUnfolder]: 8372/20474 cut-off events. [2023-08-29 03:50:16,728 INFO L131 PetriNetUnfolder]: For 10491/10926 co-relation queries the response was YES. [2023-08-29 03:50:16,780 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51148 conditions, 20474 events. 8372/20474 cut-off events. For 10491/10926 co-relation queries the response was YES. Maximal size of possible extension queue 350. Compared 185695 event pairs, 1061 based on Foata normal form. 1613/21639 useless extension candidates. Maximal degree in co-relation 51126. Up to 11944 conditions per place. [2023-08-29 03:50:16,825 INFO L137 encePairwiseOnDemand]: 479/483 looper letters, 66 selfloop transitions, 4 changer transitions 0/127 dead transitions. [2023-08-29 03:50:16,825 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 127 transitions, 669 flow [2023-08-29 03:50:16,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 03:50:16,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 03:50:16,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 832 transitions. [2023-08-29 03:50:16,827 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5741890959282263 [2023-08-29 03:50:16,827 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 832 transitions. [2023-08-29 03:50:16,827 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 832 transitions. [2023-08-29 03:50:16,828 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:50:16,828 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 832 transitions. [2023-08-29 03:50:16,830 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 277.3333333333333) internal successors, (832), 3 states have internal predecessors, (832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:50:16,831 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 483.0) internal successors, (1932), 4 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:50:16,832 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 483.0) internal successors, (1932), 4 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:50:16,832 INFO L175 Difference]: Start difference. First operand has 127 places, 140 transitions, 616 flow. Second operand 3 states and 832 transitions. [2023-08-29 03:50:16,832 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 127 transitions, 669 flow [2023-08-29 03:50:16,897 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 127 transitions, 625 flow, removed 11 selfloop flow, removed 9 redundant places. [2023-08-29 03:50:16,899 INFO L231 Difference]: Finished difference. Result has 113 places, 114 transitions, 448 flow [2023-08-29 03:50:16,899 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=483, PETRI_DIFFERENCE_MINUEND_FLOW=440, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=448, PETRI_PLACES=113, PETRI_TRANSITIONS=114} [2023-08-29 03:50:16,900 INFO L281 CegarLoopForPetriNet]: 111 programPoint places, 2 predicate places. [2023-08-29 03:50:16,900 INFO L495 AbstractCegarLoop]: Abstraction has has 113 places, 114 transitions, 448 flow [2023-08-29 03:50:16,901 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 262.0) internal successors, (786), 3 states have internal predecessors, (786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:50:16,901 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:50:16,901 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:50:16,901 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-08-29 03:50:16,901 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting t1Err5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2023-08-29 03:50:16,903 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:50:16,903 INFO L85 PathProgramCache]: Analyzing trace with hash 1647896808, now seen corresponding path program 1 times [2023-08-29 03:50:16,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:50:16,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685306445] [2023-08-29 03:50:16,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:50:16,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:50:16,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:50:17,147 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 03:50:17,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:50:17,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685306445] [2023-08-29 03:50:17,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1685306445] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:50:17,148 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:50:17,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-29 03:50:17,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942135568] [2023-08-29 03:50:17,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:50:17,149 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-29 03:50:17,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:50:17,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-29 03:50:17,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-08-29 03:50:17,292 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 241 out of 483 [2023-08-29 03:50:17,293 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 114 transitions, 448 flow. Second operand has 5 states, 5 states have (on average 244.4) internal successors, (1222), 5 states have internal predecessors, (1222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:50:17,293 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:50:17,293 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 241 of 483 [2023-08-29 03:50:17,293 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:50:20,119 INFO L130 PetriNetUnfolder]: 20809/39893 cut-off events. [2023-08-29 03:50:20,119 INFO L131 PetriNetUnfolder]: For 38272/38433 co-relation queries the response was YES. [2023-08-29 03:50:20,267 INFO L83 FinitePrefix]: Finished finitePrefix Result has 110316 conditions, 39893 events. 20809/39893 cut-off events. For 38272/38433 co-relation queries the response was YES. Maximal size of possible extension queue 729. Compared 333928 event pairs, 13616 based on Foata normal form. 0/38527 useless extension candidates. Maximal degree in co-relation 110298. Up to 32445 conditions per place. [2023-08-29 03:50:20,370 INFO L137 encePairwiseOnDemand]: 479/483 looper letters, 80 selfloop transitions, 13 changer transitions 0/125 dead transitions. [2023-08-29 03:50:20,370 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 125 transitions, 684 flow [2023-08-29 03:50:20,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-29 03:50:20,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-29 03:50:20,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1031 transitions. [2023-08-29 03:50:20,372 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5336438923395446 [2023-08-29 03:50:20,372 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1031 transitions. [2023-08-29 03:50:20,372 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1031 transitions. [2023-08-29 03:50:20,372 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:50:20,372 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1031 transitions. [2023-08-29 03:50:20,374 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 257.75) internal successors, (1031), 4 states have internal predecessors, (1031), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:50:20,376 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 483.0) internal successors, (2415), 5 states have internal predecessors, (2415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:50:20,377 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 483.0) internal successors, (2415), 5 states have internal predecessors, (2415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:50:20,377 INFO L175 Difference]: Start difference. First operand has 113 places, 114 transitions, 448 flow. Second operand 4 states and 1031 transitions. [2023-08-29 03:50:20,377 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 125 transitions, 684 flow [2023-08-29 03:50:20,524 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 125 transitions, 680 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 03:50:20,525 INFO L231 Difference]: Finished difference. Result has 114 places, 113 transitions, 466 flow [2023-08-29 03:50:20,525 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=483, PETRI_DIFFERENCE_MINUEND_FLOW=440, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=466, PETRI_PLACES=114, PETRI_TRANSITIONS=113} [2023-08-29 03:50:20,525 INFO L281 CegarLoopForPetriNet]: 111 programPoint places, 3 predicate places. [2023-08-29 03:50:20,526 INFO L495 AbstractCegarLoop]: Abstraction has has 114 places, 113 transitions, 466 flow [2023-08-29 03:50:20,526 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 244.4) internal successors, (1222), 5 states have internal predecessors, (1222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:50:20,526 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:50:20,526 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:50:20,526 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-08-29 03:50:20,527 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting t2Err9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2023-08-29 03:50:20,527 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:50:20,527 INFO L85 PathProgramCache]: Analyzing trace with hash -1262035401, now seen corresponding path program 1 times [2023-08-29 03:50:20,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:50:20,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762575151] [2023-08-29 03:50:20,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:50:20,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:50:20,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:50:20,559 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 03:50:20,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:50:20,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762575151] [2023-08-29 03:50:20,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1762575151] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:50:20,559 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:50:20,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 03:50:20,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373775378] [2023-08-29 03:50:20,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:50:20,560 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 03:50:20,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:50:20,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 03:50:20,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 03:50:20,573 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 255 out of 483 [2023-08-29 03:50:20,574 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 113 transitions, 466 flow. Second operand has 3 states, 3 states have (on average 261.3333333333333) internal successors, (784), 3 states have internal predecessors, (784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:50:20,574 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:50:20,574 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 255 of 483 [2023-08-29 03:50:20,574 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:50:22,358 INFO L130 PetriNetUnfolder]: 8041/19579 cut-off events. [2023-08-29 03:50:22,358 INFO L131 PetriNetUnfolder]: For 9407/9810 co-relation queries the response was YES. [2023-08-29 03:50:22,417 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46713 conditions, 19579 events. 8041/19579 cut-off events. For 9407/9810 co-relation queries the response was YES. Maximal size of possible extension queue 355. Compared 176631 event pairs, 5156 based on Foata normal form. 4/18859 useless extension candidates. Maximal degree in co-relation 46694. Up to 14027 conditions per place. [2023-08-29 03:50:22,459 INFO L137 encePairwiseOnDemand]: 480/483 looper letters, 62 selfloop transitions, 3 changer transitions 0/119 dead transitions. [2023-08-29 03:50:22,459 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 119 transitions, 617 flow [2023-08-29 03:50:22,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 03:50:22,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 03:50:22,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 820 transitions. [2023-08-29 03:50:22,461 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5659075224292616 [2023-08-29 03:50:22,461 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 820 transitions. [2023-08-29 03:50:22,461 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 820 transitions. [2023-08-29 03:50:22,462 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:50:22,462 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 820 transitions. [2023-08-29 03:50:22,463 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 273.3333333333333) internal successors, (820), 3 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:50:22,465 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 483.0) internal successors, (1932), 4 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:50:22,465 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 483.0) internal successors, (1932), 4 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:50:22,466 INFO L175 Difference]: Start difference. First operand has 114 places, 113 transitions, 466 flow. Second operand 3 states and 820 transitions. [2023-08-29 03:50:22,466 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 119 transitions, 617 flow [2023-08-29 03:50:22,490 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 119 transitions, 591 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-29 03:50:22,491 INFO L231 Difference]: Finished difference. Result has 112 places, 112 transitions, 444 flow [2023-08-29 03:50:22,491 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=483, PETRI_DIFFERENCE_MINUEND_FLOW=438, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=444, PETRI_PLACES=112, PETRI_TRANSITIONS=112} [2023-08-29 03:50:22,492 INFO L281 CegarLoopForPetriNet]: 111 programPoint places, 1 predicate places. [2023-08-29 03:50:22,492 INFO L495 AbstractCegarLoop]: Abstraction has has 112 places, 112 transitions, 444 flow [2023-08-29 03:50:22,492 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 261.3333333333333) internal successors, (784), 3 states have internal predecessors, (784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:50:22,492 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:50:22,492 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:50:22,492 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-08-29 03:50:22,492 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2023-08-29 03:50:22,493 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:50:22,493 INFO L85 PathProgramCache]: Analyzing trace with hash 1222713005, now seen corresponding path program 1 times [2023-08-29 03:50:22,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:50:22,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340144571] [2023-08-29 03:50:22,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:50:22,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:50:22,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:50:22,553 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 03:50:22,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:50:22,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340144571] [2023-08-29 03:50:22,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [340144571] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-29 03:50:22,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1662751303] [2023-08-29 03:50:22,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:50:22,554 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 03:50:22,554 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 03:50:22,561 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-29 03:50:22,564 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-08-29 03:50:22,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:50:22,684 INFO L263 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 3 conjunts are in the unsatisfiable core [2023-08-29 03:50:22,688 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 03:50:22,768 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 03:50:22,768 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-29 03:50:22,816 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 03:50:22,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1662751303] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-29 03:50:22,817 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-29 03:50:22,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2023-08-29 03:50:22,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819489537] [2023-08-29 03:50:22,818 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-29 03:50:22,818 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-29 03:50:22,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:50:22,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-29 03:50:22,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-08-29 03:50:22,835 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 258 out of 483 [2023-08-29 03:50:22,837 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 112 transitions, 444 flow. Second operand has 7 states, 7 states have (on average 261.7142857142857) internal successors, (1832), 7 states have internal predecessors, (1832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:50:22,837 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:50:22,838 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 258 of 483 [2023-08-29 03:50:22,839 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:50:25,995 INFO L130 PetriNetUnfolder]: 15402/39912 cut-off events. [2023-08-29 03:50:25,996 INFO L131 PetriNetUnfolder]: For 18206/19218 co-relation queries the response was YES. [2023-08-29 03:50:26,393 INFO L83 FinitePrefix]: Finished finitePrefix Result has 92951 conditions, 39912 events. 15402/39912 cut-off events. For 18206/19218 co-relation queries the response was YES. Maximal size of possible extension queue 593. Compared 417156 event pairs, 1685 based on Foata normal form. 2363/41128 useless extension candidates. Maximal degree in co-relation 92932. Up to 7113 conditions per place. [2023-08-29 03:50:26,483 INFO L137 encePairwiseOnDemand]: 479/483 looper letters, 217 selfloop transitions, 6 changer transitions 0/280 dead transitions. [2023-08-29 03:50:26,483 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 280 transitions, 1444 flow [2023-08-29 03:50:26,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 03:50:26,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 03:50:26,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1739 transitions. [2023-08-29 03:50:26,486 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6000690131124914 [2023-08-29 03:50:26,486 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1739 transitions. [2023-08-29 03:50:26,486 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1739 transitions. [2023-08-29 03:50:26,486 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:50:26,486 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1739 transitions. [2023-08-29 03:50:26,488 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 289.8333333333333) internal successors, (1739), 6 states have internal predecessors, (1739), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:50:26,490 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 483.0) internal successors, (3381), 7 states have internal predecessors, (3381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:50:26,490 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 483.0) internal successors, (3381), 7 states have internal predecessors, (3381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:50:26,491 INFO L175 Difference]: Start difference. First operand has 112 places, 112 transitions, 444 flow. Second operand 6 states and 1739 transitions. [2023-08-29 03:50:26,491 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 280 transitions, 1444 flow [2023-08-29 03:50:26,551 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 280 transitions, 1430 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 03:50:26,553 INFO L231 Difference]: Finished difference. Result has 119 places, 115 transitions, 479 flow [2023-08-29 03:50:26,553 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=483, PETRI_DIFFERENCE_MINUEND_FLOW=438, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=479, PETRI_PLACES=119, PETRI_TRANSITIONS=115} [2023-08-29 03:50:26,553 INFO L281 CegarLoopForPetriNet]: 111 programPoint places, 8 predicate places. [2023-08-29 03:50:26,553 INFO L495 AbstractCegarLoop]: Abstraction has has 119 places, 115 transitions, 479 flow [2023-08-29 03:50:26,554 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 261.7142857142857) internal successors, (1832), 7 states have internal predecessors, (1832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:50:26,554 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:50:26,554 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:50:26,564 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-08-29 03:50:26,759 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 03:50:26,760 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2023-08-29 03:50:26,760 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:50:26,760 INFO L85 PathProgramCache]: Analyzing trace with hash 1684121632, now seen corresponding path program 1 times [2023-08-29 03:50:26,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:50:26,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998966236] [2023-08-29 03:50:26,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:50:26,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:50:26,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:50:27,157 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 03:50:27,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:50:27,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998966236] [2023-08-29 03:50:27,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1998966236] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:50:27,158 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:50:27,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-29 03:50:27,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977259290] [2023-08-29 03:50:27,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:50:27,158 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-29 03:50:27,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:50:27,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-29 03:50:27,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2023-08-29 03:50:27,369 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 252 out of 483 [2023-08-29 03:50:27,371 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 115 transitions, 479 flow. Second operand has 8 states, 8 states have (on average 254.5) internal successors, (2036), 8 states have internal predecessors, (2036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:50:27,371 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:50:27,371 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 252 of 483 [2023-08-29 03:50:27,371 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:50:34,690 INFO L130 PetriNetUnfolder]: 44858/81080 cut-off events. [2023-08-29 03:50:34,690 INFO L131 PetriNetUnfolder]: For 116028/116666 co-relation queries the response was YES. [2023-08-29 03:50:35,070 INFO L83 FinitePrefix]: Finished finitePrefix Result has 249283 conditions, 81080 events. 44858/81080 cut-off events. For 116028/116666 co-relation queries the response was YES. Maximal size of possible extension queue 1255. Compared 729104 event pairs, 9060 based on Foata normal form. 1953/81068 useless extension candidates. Maximal degree in co-relation 249261. Up to 25092 conditions per place. [2023-08-29 03:50:35,297 INFO L137 encePairwiseOnDemand]: 477/483 looper letters, 280 selfloop transitions, 12 changer transitions 0/325 dead transitions. [2023-08-29 03:50:35,297 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 325 transitions, 1919 flow [2023-08-29 03:50:35,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-29 03:50:35,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-29 03:50:35,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1977 transitions. [2023-08-29 03:50:35,300 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5847382431233363 [2023-08-29 03:50:35,300 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1977 transitions. [2023-08-29 03:50:35,301 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1977 transitions. [2023-08-29 03:50:35,301 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:50:35,301 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1977 transitions. [2023-08-29 03:50:35,303 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 282.42857142857144) internal successors, (1977), 7 states have internal predecessors, (1977), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:50:35,306 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 483.0) internal successors, (3864), 8 states have internal predecessors, (3864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:50:35,307 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 483.0) internal successors, (3864), 8 states have internal predecessors, (3864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:50:35,307 INFO L175 Difference]: Start difference. First operand has 119 places, 115 transitions, 479 flow. Second operand 7 states and 1977 transitions. [2023-08-29 03:50:35,307 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 325 transitions, 1919 flow [2023-08-29 03:50:38,804 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 325 transitions, 1875 flow, removed 15 selfloop flow, removed 2 redundant places. [2023-08-29 03:50:38,806 INFO L231 Difference]: Finished difference. Result has 122 places, 114 transitions, 487 flow [2023-08-29 03:50:38,806 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=483, PETRI_DIFFERENCE_MINUEND_FLOW=463, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=487, PETRI_PLACES=122, PETRI_TRANSITIONS=114} [2023-08-29 03:50:38,807 INFO L281 CegarLoopForPetriNet]: 111 programPoint places, 11 predicate places. [2023-08-29 03:50:38,807 INFO L495 AbstractCegarLoop]: Abstraction has has 122 places, 114 transitions, 487 flow [2023-08-29 03:50:38,808 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 254.5) internal successors, (2036), 8 states have internal predecessors, (2036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:50:38,808 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:50:38,808 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:50:38,808 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-08-29 03:50:38,808 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting t1Err8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2023-08-29 03:50:38,809 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:50:38,809 INFO L85 PathProgramCache]: Analyzing trace with hash 1079285110, now seen corresponding path program 1 times [2023-08-29 03:50:38,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:50:38,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146224423] [2023-08-29 03:50:38,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:50:38,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:50:38,823 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-08-29 03:50:38,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1500849789] [2023-08-29 03:50:38,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:50:38,824 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 03:50:38,824 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 03:50:38,829 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-29 03:50:38,835 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-08-29 03:50:38,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:50:38,943 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 3 conjunts are in the unsatisfiable core [2023-08-29 03:50:38,945 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 03:50:38,959 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 03:50:38,959 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-29 03:50:38,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:50:38,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146224423] [2023-08-29 03:50:38,960 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-08-29 03:50:38,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1500849789] [2023-08-29 03:50:38,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1500849789] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:50:38,961 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:50:38,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 03:50:38,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317343066] [2023-08-29 03:50:38,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:50:38,963 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 03:50:38,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:50:38,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 03:50:38,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 03:50:38,995 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 250 out of 483 [2023-08-29 03:50:38,995 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 114 transitions, 487 flow. Second operand has 3 states, 3 states have (on average 255.0) internal successors, (765), 3 states have internal predecessors, (765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:50:38,996 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:50:38,996 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 250 of 483 [2023-08-29 03:50:38,996 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:50:42,354 INFO L130 PetriNetUnfolder]: 15960/39676 cut-off events. [2023-08-29 03:50:42,354 INFO L131 PetriNetUnfolder]: For 30563/31564 co-relation queries the response was YES. [2023-08-29 03:50:42,542 INFO L83 FinitePrefix]: Finished finitePrefix Result has 101656 conditions, 39676 events. 15960/39676 cut-off events. For 30563/31564 co-relation queries the response was YES. Maximal size of possible extension queue 581. Compared 405182 event pairs, 10731 based on Foata normal form. 22/38373 useless extension candidates. Maximal degree in co-relation 101634. Up to 28099 conditions per place. [2023-08-29 03:50:42,634 INFO L137 encePairwiseOnDemand]: 480/483 looper letters, 65 selfloop transitions, 2 changer transitions 0/120 dead transitions. [2023-08-29 03:50:42,635 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 120 transitions, 643 flow [2023-08-29 03:50:42,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 03:50:42,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 03:50:42,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 805 transitions. [2023-08-29 03:50:42,636 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5555555555555556 [2023-08-29 03:50:42,636 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 805 transitions. [2023-08-29 03:50:42,636 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 805 transitions. [2023-08-29 03:50:42,637 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:50:42,637 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 805 transitions. [2023-08-29 03:50:42,638 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 268.3333333333333) internal successors, (805), 3 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:50:42,639 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 483.0) internal successors, (1932), 4 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:50:42,639 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 483.0) internal successors, (1932), 4 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:50:42,639 INFO L175 Difference]: Start difference. First operand has 122 places, 114 transitions, 487 flow. Second operand 3 states and 805 transitions. [2023-08-29 03:50:42,639 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 120 transitions, 643 flow [2023-08-29 03:50:42,762 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 120 transitions, 622 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-29 03:50:42,763 INFO L231 Difference]: Finished difference. Result has 118 places, 113 transitions, 468 flow [2023-08-29 03:50:42,763 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=483, PETRI_DIFFERENCE_MINUEND_FLOW=464, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=111, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=468, PETRI_PLACES=118, PETRI_TRANSITIONS=113} [2023-08-29 03:50:42,764 INFO L281 CegarLoopForPetriNet]: 111 programPoint places, 7 predicate places. [2023-08-29 03:50:42,764 INFO L495 AbstractCegarLoop]: Abstraction has has 118 places, 113 transitions, 468 flow [2023-08-29 03:50:42,764 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 255.0) internal successors, (765), 3 states have internal predecessors, (765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:50:42,764 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:50:42,765 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:50:42,771 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-08-29 03:50:42,965 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2023-08-29 03:50:42,965 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2023-08-29 03:50:42,966 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:50:42,966 INFO L85 PathProgramCache]: Analyzing trace with hash -371356981, now seen corresponding path program 2 times [2023-08-29 03:50:42,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:50:42,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356599494] [2023-08-29 03:50:42,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:50:42,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:50:42,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:50:43,087 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 03:50:43,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:50:43,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356599494] [2023-08-29 03:50:43,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356599494] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-29 03:50:43,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [787777115] [2023-08-29 03:50:43,088 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-29 03:50:43,089 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 03:50:43,089 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 03:50:43,090 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-29 03:50:43,119 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-08-29 03:50:43,213 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-08-29 03:50:43,213 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-29 03:50:43,215 INFO L263 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 19 conjunts are in the unsatisfiable core [2023-08-29 03:50:43,217 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 03:50:43,292 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-08-29 03:50:43,312 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2023-08-29 03:50:43,339 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-29 03:50:43,339 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2023-08-29 03:50:43,370 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-29 03:50:43,370 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 38 [2023-08-29 03:50:43,391 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-08-29 03:50:43,392 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-29 03:50:43,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [787777115] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:50:43,392 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-29 03:50:43,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 12 [2023-08-29 03:50:43,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379795745] [2023-08-29 03:50:43,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:50:43,395 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-29 03:50:43,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:50:43,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-29 03:50:43,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2023-08-29 03:50:43,502 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 253 out of 483 [2023-08-29 03:50:43,503 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 113 transitions, 468 flow. Second operand has 7 states, 7 states have (on average 255.28571428571428) internal successors, (1787), 7 states have internal predecessors, (1787), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:50:43,503 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:50:43,503 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 253 of 483 [2023-08-29 03:50:43,503 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:50:47,142 INFO L130 PetriNetUnfolder]: 16868/40323 cut-off events. [2023-08-29 03:50:47,142 INFO L131 PetriNetUnfolder]: For 31793/32894 co-relation queries the response was YES. [2023-08-29 03:50:47,336 INFO L83 FinitePrefix]: Finished finitePrefix Result has 105056 conditions, 40323 events. 16868/40323 cut-off events. For 31793/32894 co-relation queries the response was YES. Maximal size of possible extension queue 583. Compared 402994 event pairs, 10686 based on Foata normal form. 19/39288 useless extension candidates. Maximal degree in co-relation 105034. Up to 28575 conditions per place. [2023-08-29 03:50:47,358 INFO L137 encePairwiseOnDemand]: 477/483 looper letters, 0 selfloop transitions, 0 changer transitions 200/200 dead transitions. [2023-08-29 03:50:47,358 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 200 transitions, 1098 flow [2023-08-29 03:50:47,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-29 03:50:47,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-29 03:50:47,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1895 transitions. [2023-08-29 03:50:47,363 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5604850635906536 [2023-08-29 03:50:47,363 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1895 transitions. [2023-08-29 03:50:47,363 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1895 transitions. [2023-08-29 03:50:47,364 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:50:47,364 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1895 transitions. [2023-08-29 03:50:47,366 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 270.7142857142857) internal successors, (1895), 7 states have internal predecessors, (1895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:50:47,370 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 483.0) internal successors, (3864), 8 states have internal predecessors, (3864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:50:47,370 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 483.0) internal successors, (3864), 8 states have internal predecessors, (3864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:50:47,370 INFO L175 Difference]: Start difference. First operand has 118 places, 113 transitions, 468 flow. Second operand 7 states and 1895 transitions. [2023-08-29 03:50:47,370 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 200 transitions, 1098 flow [2023-08-29 03:50:47,493 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 200 transitions, 1094 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 03:50:47,494 INFO L231 Difference]: Finished difference. Result has 121 places, 0 transitions, 0 flow [2023-08-29 03:50:47,494 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=483, PETRI_DIFFERENCE_MINUEND_FLOW=462, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=121, PETRI_TRANSITIONS=0} [2023-08-29 03:50:47,495 INFO L281 CegarLoopForPetriNet]: 111 programPoint places, 10 predicate places. [2023-08-29 03:50:47,495 INFO L495 AbstractCegarLoop]: Abstraction has has 121 places, 0 transitions, 0 flow [2023-08-29 03:50:47,495 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 255.28571428571428) internal successors, (1787), 7 states have internal predecessors, (1787), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:50:47,497 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (55 of 56 remaining) [2023-08-29 03:50:47,498 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (54 of 56 remaining) [2023-08-29 03:50:47,498 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (53 of 56 remaining) [2023-08-29 03:50:47,498 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (52 of 56 remaining) [2023-08-29 03:50:47,498 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (51 of 56 remaining) [2023-08-29 03:50:47,499 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (50 of 56 remaining) [2023-08-29 03:50:47,499 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (49 of 56 remaining) [2023-08-29 03:50:47,499 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (48 of 56 remaining) [2023-08-29 03:50:47,499 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (47 of 56 remaining) [2023-08-29 03:50:47,499 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (46 of 56 remaining) [2023-08-29 03:50:47,499 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err0ASSERT_VIOLATIONDATA_RACE (45 of 56 remaining) [2023-08-29 03:50:47,500 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err1ASSERT_VIOLATIONDATA_RACE (44 of 56 remaining) [2023-08-29 03:50:47,500 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err2ASSERT_VIOLATIONDATA_RACE (43 of 56 remaining) [2023-08-29 03:50:47,500 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err3ASSERT_VIOLATIONDATA_RACE (42 of 56 remaining) [2023-08-29 03:50:47,500 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err4ASSERT_VIOLATIONDATA_RACE (41 of 56 remaining) [2023-08-29 03:50:47,500 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err5ASSERT_VIOLATIONDATA_RACE (40 of 56 remaining) [2023-08-29 03:50:47,500 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err11ASSERT_VIOLATIONDATA_RACE (39 of 56 remaining) [2023-08-29 03:50:47,501 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err6ASSERT_VIOLATIONDATA_RACE (38 of 56 remaining) [2023-08-29 03:50:47,501 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err7ASSERT_VIOLATIONDATA_RACE (37 of 56 remaining) [2023-08-29 03:50:47,501 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err12ASSERT_VIOLATIONDATA_RACE (36 of 56 remaining) [2023-08-29 03:50:47,501 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err8ASSERT_VIOLATIONDATA_RACE (35 of 56 remaining) [2023-08-29 03:50:47,501 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err9ASSERT_VIOLATIONDATA_RACE (34 of 56 remaining) [2023-08-29 03:50:47,501 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err10ASSERT_VIOLATIONDATA_RACE (33 of 56 remaining) [2023-08-29 03:50:47,501 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err0ASSERT_VIOLATIONDATA_RACE (32 of 56 remaining) [2023-08-29 03:50:47,502 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err1ASSERT_VIOLATIONDATA_RACE (31 of 56 remaining) [2023-08-29 03:50:47,502 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err2ASSERT_VIOLATIONDATA_RACE (30 of 56 remaining) [2023-08-29 03:50:47,502 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err3ASSERT_VIOLATIONDATA_RACE (29 of 56 remaining) [2023-08-29 03:50:47,502 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err4ASSERT_VIOLATIONDATA_RACE (28 of 56 remaining) [2023-08-29 03:50:47,502 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err5ASSERT_VIOLATIONDATA_RACE (27 of 56 remaining) [2023-08-29 03:50:47,502 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err8ASSERT_VIOLATIONDATA_RACE (26 of 56 remaining) [2023-08-29 03:50:47,503 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err6ASSERT_VIOLATIONDATA_RACE (25 of 56 remaining) [2023-08-29 03:50:47,503 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err7ASSERT_VIOLATIONDATA_RACE (24 of 56 remaining) [2023-08-29 03:50:47,503 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err9ASSERT_VIOLATIONDATA_RACE (23 of 56 remaining) [2023-08-29 03:50:47,503 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err0ASSERT_VIOLATIONDATA_RACE (22 of 56 remaining) [2023-08-29 03:50:47,503 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err1ASSERT_VIOLATIONDATA_RACE (21 of 56 remaining) [2023-08-29 03:50:47,503 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err2ASSERT_VIOLATIONDATA_RACE (20 of 56 remaining) [2023-08-29 03:50:47,503 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err3ASSERT_VIOLATIONDATA_RACE (19 of 56 remaining) [2023-08-29 03:50:47,504 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err4ASSERT_VIOLATIONDATA_RACE (18 of 56 remaining) [2023-08-29 03:50:47,504 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err5ASSERT_VIOLATIONDATA_RACE (17 of 56 remaining) [2023-08-29 03:50:47,504 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err11ASSERT_VIOLATIONDATA_RACE (16 of 56 remaining) [2023-08-29 03:50:47,504 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err6ASSERT_VIOLATIONDATA_RACE (15 of 56 remaining) [2023-08-29 03:50:47,504 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err7ASSERT_VIOLATIONDATA_RACE (14 of 56 remaining) [2023-08-29 03:50:47,504 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err12ASSERT_VIOLATIONDATA_RACE (13 of 56 remaining) [2023-08-29 03:50:47,505 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err8ASSERT_VIOLATIONDATA_RACE (12 of 56 remaining) [2023-08-29 03:50:47,505 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err9ASSERT_VIOLATIONDATA_RACE (11 of 56 remaining) [2023-08-29 03:50:47,505 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err10ASSERT_VIOLATIONDATA_RACE (10 of 56 remaining) [2023-08-29 03:50:47,505 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err0ASSERT_VIOLATIONDATA_RACE (9 of 56 remaining) [2023-08-29 03:50:47,505 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err1ASSERT_VIOLATIONDATA_RACE (8 of 56 remaining) [2023-08-29 03:50:47,505 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err2ASSERT_VIOLATIONDATA_RACE (7 of 56 remaining) [2023-08-29 03:50:47,505 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err3ASSERT_VIOLATIONDATA_RACE (6 of 56 remaining) [2023-08-29 03:50:47,506 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err4ASSERT_VIOLATIONDATA_RACE (5 of 56 remaining) [2023-08-29 03:50:47,506 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err5ASSERT_VIOLATIONDATA_RACE (4 of 56 remaining) [2023-08-29 03:50:47,506 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err8ASSERT_VIOLATIONDATA_RACE (3 of 56 remaining) [2023-08-29 03:50:47,506 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err6ASSERT_VIOLATIONDATA_RACE (2 of 56 remaining) [2023-08-29 03:50:47,506 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err7ASSERT_VIOLATIONDATA_RACE (1 of 56 remaining) [2023-08-29 03:50:47,506 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err9ASSERT_VIOLATIONDATA_RACE (0 of 56 remaining) [2023-08-29 03:50:47,513 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-08-29 03:50:47,711 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 03:50:47,711 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:50:47,715 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-29 03:50:47,715 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-29 03:50:47,719 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 03:50:47 BasicIcfg [2023-08-29 03:50:47,719 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-29 03:50:47,720 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-29 03:50:47,720 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-29 03:50:47,720 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-29 03:50:47,720 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 03:48:48" (3/4) ... [2023-08-29 03:50:47,722 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-29 03:50:47,728 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t1 [2023-08-29 03:50:47,728 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t2 [2023-08-29 03:50:47,733 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2023-08-29 03:50:47,733 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-08-29 03:50:47,733 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-29 03:50:47,733 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-29 03:50:47,772 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-29 03:50:47,775 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-29 03:50:47,776 INFO L158 Benchmark]: Toolchain (without parser) took 121111.64ms. Allocated memory was 71.3MB in the beginning and 16.0GB in the end (delta: 15.9GB). Free memory was 46.3MB in the beginning and 14.2GB in the end (delta: -14.1GB). Peak memory consumption was 1.8GB. Max. memory is 16.1GB. [2023-08-29 03:50:47,776 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 71.3MB. Free memory is still 49.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 03:50:47,776 INFO L158 Benchmark]: CACSL2BoogieTranslator took 577.72ms. Allocated memory was 71.3MB in the beginning and 88.1MB in the end (delta: 16.8MB). Free memory was 46.3MB in the beginning and 66.0MB in the end (delta: -19.7MB). Peak memory consumption was 24.4MB. Max. memory is 16.1GB. [2023-08-29 03:50:47,776 INFO L158 Benchmark]: Boogie Procedure Inliner took 79.00ms. Allocated memory is still 88.1MB. Free memory was 66.0MB in the beginning and 63.2MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 03:50:47,777 INFO L158 Benchmark]: Boogie Preprocessor took 71.05ms. Allocated memory is still 88.1MB. Free memory was 63.2MB in the beginning and 61.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 03:50:47,777 INFO L158 Benchmark]: RCFGBuilder took 688.86ms. Allocated memory is still 88.1MB. Free memory was 61.0MB in the beginning and 37.1MB in the end (delta: 23.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2023-08-29 03:50:47,777 INFO L158 Benchmark]: TraceAbstraction took 119633.68ms. Allocated memory was 88.1MB in the beginning and 16.0GB in the end (delta: 15.9GB). Free memory was 36.3MB in the beginning and 14.2GB in the end (delta: -14.1GB). Peak memory consumption was 2.1GB. Max. memory is 16.1GB. [2023-08-29 03:50:47,778 INFO L158 Benchmark]: Witness Printer took 55.46ms. Allocated memory is still 16.0GB. Free memory was 14.2GB in the beginning and 14.2GB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 03:50:47,780 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 71.3MB. Free memory is still 49.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 577.72ms. Allocated memory was 71.3MB in the beginning and 88.1MB in the end (delta: 16.8MB). Free memory was 46.3MB in the beginning and 66.0MB in the end (delta: -19.7MB). Peak memory consumption was 24.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 79.00ms. Allocated memory is still 88.1MB. Free memory was 66.0MB in the beginning and 63.2MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 71.05ms. Allocated memory is still 88.1MB. Free memory was 63.2MB in the beginning and 61.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 688.86ms. Allocated memory is still 88.1MB. Free memory was 61.0MB in the beginning and 37.1MB in the end (delta: 23.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 119633.68ms. Allocated memory was 88.1MB in the beginning and 16.0GB in the end (delta: 15.9GB). Free memory was 36.3MB in the beginning and 14.2GB in the end (delta: -14.1GB). Peak memory consumption was 2.1GB. Max. memory is 16.1GB. * Witness Printer took 55.46ms. Allocated memory is still 16.0GB. Free memory was 14.2GB in the beginning and 14.2GB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.5s, 257 PlacesBefore, 111 PlacesAfterwards, 262 TransitionsBefore, 113 TransitionsAfterwards, 19388 CoEnabledTransitionPairs, 9 FixpointIterations, 94 TrivialSequentialCompositions, 96 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 17 ConcurrentYvCompositions, 3 ChoiceCompositions, 210 TotalNumberOfCompositions, 110534 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 39254, independent: 37605, independent conditional: 0, independent unconditional: 37605, dependent: 1649, dependent conditional: 0, dependent unconditional: 1649, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 10046, independent: 9889, independent conditional: 0, independent unconditional: 9889, dependent: 157, dependent conditional: 0, dependent unconditional: 157, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 39254, independent: 27716, independent conditional: 0, independent unconditional: 27716, dependent: 1492, dependent conditional: 0, dependent unconditional: 1492, unknown: 10046, unknown conditional: 0, unknown unconditional: 10046] , Statistics on independence cache: Total cache size (in pairs): 1848, Positive cache size: 1760, Positive conditional cache size: 0, Positive unconditional cache size: 1760, Negative cache size: 88, Negative conditional cache size: 0, Negative unconditional cache size: 88, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 690]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 691]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 691]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 691]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 759]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 760]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 763]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 764]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 727]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 707]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 707]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 707]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 709]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 709]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 730]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 710]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 710]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 731]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 710]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 712]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 712]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 743]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 695]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 695]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 695]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 697]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 697]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 747]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 698]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 698]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 748]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 421 locations, 56 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 119.5s, OverallIterations: 22, TraceHistogramMax: 4, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 110.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2049 SdHoareTripleChecker+Valid, 4.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1524 mSDsluCounter, 135 SdHoareTripleChecker+Invalid, 3.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 29 mSDsCounter, 188 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4750 IncrementalHoareTripleChecker+Invalid, 4938 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 188 mSolverCounterUnsat, 106 mSDtfsCounter, 4750 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 171 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=616occurred in iteration=15, InterpolantAutomatonStates: 80, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 444 NumberOfCodeBlocks, 413 NumberOfCodeBlocksAsserted, 24 NumberOfCheckSat, 443 ConstructedInterpolants, 0 QuantifiedInterpolants, 1368 SizeOfPredicates, 0 NumberOfNonLiveVariables, 610 ConjunctsInSsa, 25 ConjunctsInUnsatCore, 25 InterpolantComputations, 21 PerfectInterpolantSequences, 40/83 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 31 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-29 03:50:47,807 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE