./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/pthread/singleton_with-uninit-problems.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/pthread/singleton_with-uninit-problems.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 9556b3eb7217f056a72a299bf0514e64606a248fa454b59dcc03e4a2e74c7c90 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-29 09:20:18,751 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 09:20:18,753 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 09:20:18,770 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 09:20:18,770 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 09:20:18,771 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 09:20:18,771 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 09:20:18,773 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 09:20:18,774 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 09:20:18,774 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 09:20:18,775 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 09:20:18,775 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 09:20:18,776 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 09:20:18,776 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 09:20:18,777 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 09:20:18,778 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 09:20:18,778 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 09:20:18,779 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 09:20:18,780 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 09:20:18,781 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 09:20:18,782 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 09:20:18,785 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 09:20:18,785 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 09:20:18,786 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 09:20:18,788 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 09:20:18,788 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 09:20:18,788 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 09:20:18,788 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 09:20:18,789 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 09:20:18,789 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 09:20:18,789 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 09:20:18,790 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 09:20:18,790 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 09:20:18,791 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 09:20:18,791 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 09:20:18,791 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 09:20:18,792 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 09:20:18,792 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 09:20:18,792 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 09:20:18,792 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 09:20:18,793 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 09:20:18,799 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-29 09:20:18,826 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 09:20:18,826 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 09:20:18,827 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 09:20:18,827 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 09:20:18,828 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 09:20:18,828 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 09:20:18,829 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 09:20:18,829 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 09:20:18,829 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 09:20:18,829 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 09:20:18,830 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 09:20:18,830 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 09:20:18,830 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 09:20:18,830 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 09:20:18,831 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 09:20:18,831 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-29 09:20:18,831 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 09:20:18,831 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-29 09:20:18,831 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-29 09:20:18,831 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 09:20:18,831 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-29 09:20:18,831 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 09:20:18,832 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-29 09:20:18,832 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 09:20:18,832 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 09:20:18,832 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 09:20:18,832 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 09:20:18,832 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 09:20:18,832 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 09:20:18,833 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-29 09:20:18,833 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 09:20:18,833 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 09:20:18,833 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 09:20:18,833 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-29 09:20:18,833 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 09:20:18,833 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 09:20:18,834 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 09:20:18,834 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9556b3eb7217f056a72a299bf0514e64606a248fa454b59dcc03e4a2e74c7c90 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-29 09:20:19,078 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 09:20:19,092 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 09:20:19,094 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 09:20:19,095 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 09:20:19,095 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 09:20:19,096 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/singleton_with-uninit-problems.i [2023-08-29 09:20:20,036 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 09:20:20,223 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 09:20:20,224 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/singleton_with-uninit-problems.i [2023-08-29 09:20:20,247 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d50289e36/582316b3e20143d5ba08f360a744fd07/FLAG6bc51e741 [2023-08-29 09:20:20,587 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d50289e36/582316b3e20143d5ba08f360a744fd07 [2023-08-29 09:20:20,589 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 09:20:20,590 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 09:20:20,591 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 09:20:20,591 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 09:20:20,611 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 09:20:20,612 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 09:20:20" (1/1) ... [2023-08-29 09:20:20,612 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e65a349 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:20:20, skipping insertion in model container [2023-08-29 09:20:20,612 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 09:20:20" (1/1) ... [2023-08-29 09:20:20,616 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 09:20:20,659 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 09:20:20,815 WARN L633 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-08-29 09:20:21,004 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/singleton_with-uninit-problems.i[55568,55581] [2023-08-29 09:20:21,029 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 09:20:21,034 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 09:20:21,056 WARN L633 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-08-29 09:20:21,064 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/singleton_with-uninit-problems.i[55568,55581] [2023-08-29 09:20:21,102 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 09:20:21,156 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-29 09:20:21,156 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-29 09:20:21,156 WARN L667 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-08-29 09:20:21,161 INFO L208 MainTranslator]: Completed translation [2023-08-29 09:20:21,161 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:20:21 WrapperNode [2023-08-29 09:20:21,161 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 09:20:21,162 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 09:20:21,162 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 09:20:21,162 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 09:20:21,167 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:20:21" (1/1) ... [2023-08-29 09:20:21,193 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:20:21" (1/1) ... [2023-08-29 09:20:21,215 INFO L138 Inliner]: procedures = 325, calls = 53, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 54 [2023-08-29 09:20:21,215 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 09:20:21,216 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 09:20:21,216 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 09:20:21,216 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 09:20:21,222 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:20:21" (1/1) ... [2023-08-29 09:20:21,222 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:20:21" (1/1) ... [2023-08-29 09:20:21,233 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:20:21" (1/1) ... [2023-08-29 09:20:21,233 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:20:21" (1/1) ... [2023-08-29 09:20:21,240 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:20:21" (1/1) ... [2023-08-29 09:20:21,241 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:20:21" (1/1) ... [2023-08-29 09:20:21,243 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:20:21" (1/1) ... [2023-08-29 09:20:21,244 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:20:21" (1/1) ... [2023-08-29 09:20:21,246 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 09:20:21,247 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 09:20:21,247 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 09:20:21,247 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 09:20:21,247 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:20:21" (1/1) ... [2023-08-29 09:20:21,264 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 09:20:21,275 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 09:20:21,283 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 09:20:21,302 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 09:20:21,310 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-29 09:20:21,310 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 09:20:21,310 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 09:20:21,310 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-29 09:20:21,310 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-29 09:20:21,310 INFO L130 BoogieDeclarations]: Found specification of procedure thread0 [2023-08-29 09:20:21,310 INFO L138 BoogieDeclarations]: Found implementation of procedure thread0 [2023-08-29 09:20:21,310 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-29 09:20:21,311 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-29 09:20:21,311 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-29 09:20:21,311 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-29 09:20:21,311 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-08-29 09:20:21,311 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-08-29 09:20:21,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-29 09:20:21,311 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-29 09:20:21,311 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-29 09:20:21,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-29 09:20:21,312 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 09:20:21,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 09:20:21,312 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 09:20:21,466 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 09:20:21,467 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 09:20:21,743 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 09:20:21,775 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 09:20:21,775 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-29 09:20:21,777 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 09:20:21 BoogieIcfgContainer [2023-08-29 09:20:21,777 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 09:20:21,779 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 09:20:21,779 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 09:20:21,781 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 09:20:21,782 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 09:20:20" (1/3) ... [2023-08-29 09:20:21,782 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d56a6ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 09:20:21, skipping insertion in model container [2023-08-29 09:20:21,782 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:20:21" (2/3) ... [2023-08-29 09:20:21,783 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d56a6ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 09:20:21, skipping insertion in model container [2023-08-29 09:20:21,783 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 09:20:21" (3/3) ... [2023-08-29 09:20:21,783 INFO L112 eAbstractionObserver]: Analyzing ICFG singleton_with-uninit-problems.i [2023-08-29 09:20:21,789 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-29 09:20:21,794 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 09:20:21,795 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 15 error locations. [2023-08-29 09:20:21,795 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 09:20:21,914 INFO L144 ThreadInstanceAdder]: Constructed 21 joinOtherThreadTransitions. [2023-08-29 09:20:21,954 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 288 places, 279 transitions, 665 flow [2023-08-29 09:20:22,024 INFO L130 PetriNetUnfolder]: 7/192 cut-off events. [2023-08-29 09:20:22,024 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2023-08-29 09:20:22,029 INFO L83 FinitePrefix]: Finished finitePrefix Result has 222 conditions, 192 events. 7/192 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 144 event pairs, 0 based on Foata normal form. 0/166 useless extension candidates. Maximal degree in co-relation 162. Up to 3 conditions per place. [2023-08-29 09:20:22,029 INFO L82 GeneralOperation]: Start removeDead. Operand has 288 places, 279 transitions, 665 flow [2023-08-29 09:20:22,035 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 188 places, 174 transitions, 399 flow [2023-08-29 09:20:22,037 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 09:20:22,042 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 188 places, 174 transitions, 399 flow [2023-08-29 09:20:22,046 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 188 places, 174 transitions, 399 flow [2023-08-29 09:20:22,046 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 188 places, 174 transitions, 399 flow [2023-08-29 09:20:22,082 INFO L130 PetriNetUnfolder]: 5/174 cut-off events. [2023-08-29 09:20:22,082 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2023-08-29 09:20:22,083 INFO L83 FinitePrefix]: Finished finitePrefix Result has 204 conditions, 174 events. 5/174 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 115 event pairs, 0 based on Foata normal form. 0/151 useless extension candidates. Maximal degree in co-relation 162. Up to 3 conditions per place. [2023-08-29 09:20:22,086 INFO L119 LiptonReduction]: Number of co-enabled transitions 4608 [2023-08-29 09:20:24,411 INFO L134 LiptonReduction]: Checked pairs total: 20329 [2023-08-29 09:20:24,412 INFO L136 LiptonReduction]: Total number of compositions: 100 [2023-08-29 09:20:24,421 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 09:20:24,424 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;@71ec04d1, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 09:20:24,425 INFO L358 AbstractCegarLoop]: Starting to check reachability of 40 error locations. [2023-08-29 09:20:24,427 INFO L130 PetriNetUnfolder]: 0/8 cut-off events. [2023-08-29 09:20:24,427 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 09:20:24,427 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 09:20:24,427 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-29 09:20:24,428 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-08-29 09:20:24,431 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 09:20:24,431 INFO L85 PathProgramCache]: Analyzing trace with hash 653699947, now seen corresponding path program 1 times [2023-08-29 09:20:24,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 09:20:24,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10073201] [2023-08-29 09:20:24,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 09:20:24,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 09:20:24,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 09:20:24,560 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 09:20:24,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 09:20:24,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10073201] [2023-08-29 09:20:24,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [10073201] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 09:20:24,562 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 09:20:24,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-29 09:20:24,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858907318] [2023-08-29 09:20:24,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 09:20:24,568 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-29 09:20:24,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 09:20:24,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-29 09:20:24,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-29 09:20:24,611 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 236 out of 381 [2023-08-29 09:20:24,613 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 88 transitions, 227 flow. Second operand has 2 states, 2 states have (on average 238.5) internal successors, (477), 2 states have internal predecessors, (477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:20:24,614 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 09:20:24,614 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 236 of 381 [2023-08-29 09:20:24,614 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 09:20:24,758 INFO L130 PetriNetUnfolder]: 317/715 cut-off events. [2023-08-29 09:20:24,758 INFO L131 PetriNetUnfolder]: For 101/105 co-relation queries the response was YES. [2023-08-29 09:20:24,762 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1341 conditions, 715 events. 317/715 cut-off events. For 101/105 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 2656 event pairs, 285 based on Foata normal form. 1/637 useless extension candidates. Maximal degree in co-relation 1324. Up to 488 conditions per place. [2023-08-29 09:20:24,766 INFO L137 encePairwiseOnDemand]: 368/381 looper letters, 31 selfloop transitions, 0 changer transitions 1/75 dead transitions. [2023-08-29 09:20:24,793 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 75 transitions, 265 flow [2023-08-29 09:20:24,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-29 09:20:24,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-29 09:20:24,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 517 transitions. [2023-08-29 09:20:24,807 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.678477690288714 [2023-08-29 09:20:24,807 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 517 transitions. [2023-08-29 09:20:24,808 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 517 transitions. [2023-08-29 09:20:24,810 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 09:20:24,811 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 517 transitions. [2023-08-29 09:20:24,814 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 258.5) internal successors, (517), 2 states have internal predecessors, (517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:20:24,817 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 381.0) internal successors, (1143), 3 states have internal predecessors, (1143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:20:24,818 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 381.0) internal successors, (1143), 3 states have internal predecessors, (1143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:20:24,819 INFO L175 Difference]: Start difference. First operand has 102 places, 88 transitions, 227 flow. Second operand 2 states and 517 transitions. [2023-08-29 09:20:24,819 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 75 transitions, 265 flow [2023-08-29 09:20:24,823 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 75 transitions, 231 flow, removed 0 selfloop flow, removed 12 redundant places. [2023-08-29 09:20:24,824 INFO L231 Difference]: Finished difference. Result has 78 places, 74 transitions, 164 flow [2023-08-29 09:20:24,826 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=381, PETRI_DIFFERENCE_MINUEND_FLOW=167, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=164, PETRI_PLACES=78, PETRI_TRANSITIONS=74} [2023-08-29 09:20:24,828 INFO L281 CegarLoopForPetriNet]: 102 programPoint places, -24 predicate places. [2023-08-29 09:20:24,828 INFO L495 AbstractCegarLoop]: Abstraction has has 78 places, 74 transitions, 164 flow [2023-08-29 09:20:24,829 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 238.5) internal successors, (477), 2 states have internal predecessors, (477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:20:24,829 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 09:20:24,829 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 09:20:24,829 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-29 09:20:24,829 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-08-29 09:20:24,830 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 09:20:24,830 INFO L85 PathProgramCache]: Analyzing trace with hash 142889494, now seen corresponding path program 1 times [2023-08-29 09:20:24,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 09:20:24,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465498290] [2023-08-29 09:20:24,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 09:20:24,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 09:20:24,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 09:20:25,103 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 09:20:25,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 09:20:25,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465498290] [2023-08-29 09:20:25,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [465498290] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 09:20:25,104 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 09:20:25,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 09:20:25,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904047359] [2023-08-29 09:20:25,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 09:20:25,105 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 09:20:25,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 09:20:25,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 09:20:25,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 09:20:25,423 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 227 out of 381 [2023-08-29 09:20:25,424 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 74 transitions, 164 flow. Second operand has 6 states, 6 states have (on average 228.33333333333334) internal successors, (1370), 6 states have internal predecessors, (1370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:20:25,424 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 09:20:25,424 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 227 of 381 [2023-08-29 09:20:25,424 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 09:20:25,912 INFO L130 PetriNetUnfolder]: 2227/4664 cut-off events. [2023-08-29 09:20:25,912 INFO L131 PetriNetUnfolder]: For 202/215 co-relation queries the response was YES. [2023-08-29 09:20:25,917 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8070 conditions, 4664 events. 2227/4664 cut-off events. For 202/215 co-relation queries the response was YES. Maximal size of possible extension queue 155. Compared 30788 event pairs, 890 based on Foata normal form. 1/4136 useless extension candidates. Maximal degree in co-relation 8067. Up to 2312 conditions per place. [2023-08-29 09:20:25,929 INFO L137 encePairwiseOnDemand]: 371/381 looper letters, 120 selfloop transitions, 21 changer transitions 12/190 dead transitions. [2023-08-29 09:20:25,929 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 190 transitions, 762 flow [2023-08-29 09:20:25,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 09:20:25,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 09:20:25,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1516 transitions. [2023-08-29 09:20:25,932 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.663167104111986 [2023-08-29 09:20:25,932 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1516 transitions. [2023-08-29 09:20:25,932 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1516 transitions. [2023-08-29 09:20:25,933 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 09:20:25,933 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1516 transitions. [2023-08-29 09:20:25,935 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 252.66666666666666) internal successors, (1516), 6 states have internal predecessors, (1516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:20:25,940 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 381.0) internal successors, (2667), 7 states have internal predecessors, (2667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:20:25,940 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 381.0) internal successors, (2667), 7 states have internal predecessors, (2667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:20:25,941 INFO L175 Difference]: Start difference. First operand has 78 places, 74 transitions, 164 flow. Second operand 6 states and 1516 transitions. [2023-08-29 09:20:25,941 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 190 transitions, 762 flow [2023-08-29 09:20:25,943 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 190 transitions, 762 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 09:20:25,945 INFO L231 Difference]: Finished difference. Result has 87 places, 94 transitions, 306 flow [2023-08-29 09:20:25,945 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=381, PETRI_DIFFERENCE_MINUEND_FLOW=164, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=306, PETRI_PLACES=87, PETRI_TRANSITIONS=94} [2023-08-29 09:20:25,946 INFO L281 CegarLoopForPetriNet]: 102 programPoint places, -15 predicate places. [2023-08-29 09:20:25,946 INFO L495 AbstractCegarLoop]: Abstraction has has 87 places, 94 transitions, 306 flow [2023-08-29 09:20:25,947 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 228.33333333333334) internal successors, (1370), 6 states have internal predecessors, (1370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:20:25,947 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 09:20:25,947 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 09:20:25,947 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-29 09:20:25,947 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread0Err0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-08-29 09:20:25,949 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 09:20:25,949 INFO L85 PathProgramCache]: Analyzing trace with hash 724689241, now seen corresponding path program 1 times [2023-08-29 09:20:25,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 09:20:25,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733716203] [2023-08-29 09:20:25,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 09:20:25,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 09:20:25,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 09:20:26,213 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 09:20:26,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 09:20:26,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733716203] [2023-08-29 09:20:26,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1733716203] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 09:20:26,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 09:20:26,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 09:20:26,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380642947] [2023-08-29 09:20:26,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 09:20:26,216 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 09:20:26,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 09:20:26,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 09:20:26,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 09:20:26,528 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 228 out of 381 [2023-08-29 09:20:26,529 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 94 transitions, 306 flow. Second operand has 6 states, 6 states have (on average 229.5) internal successors, (1377), 6 states have internal predecessors, (1377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:20:26,529 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 09:20:26,529 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 228 of 381 [2023-08-29 09:20:26,529 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 09:20:26,770 INFO L130 PetriNetUnfolder]: 1593/2722 cut-off events. [2023-08-29 09:20:26,770 INFO L131 PetriNetUnfolder]: For 1799/2422 co-relation queries the response was YES. [2023-08-29 09:20:26,774 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7474 conditions, 2722 events. 1593/2722 cut-off events. For 1799/2422 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 13642 event pairs, 288 based on Foata normal form. 2/2488 useless extension candidates. Maximal degree in co-relation 7466. Up to 1837 conditions per place. [2023-08-29 09:20:26,783 INFO L137 encePairwiseOnDemand]: 372/381 looper letters, 62 selfloop transitions, 24 changer transitions 0/128 dead transitions. [2023-08-29 09:20:26,783 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 128 transitions, 621 flow [2023-08-29 09:20:26,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 09:20:26,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 09:20:26,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1423 transitions. [2023-08-29 09:20:26,786 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6224846894138233 [2023-08-29 09:20:26,786 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1423 transitions. [2023-08-29 09:20:26,786 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1423 transitions. [2023-08-29 09:20:26,787 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 09:20:26,787 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1423 transitions. [2023-08-29 09:20:26,789 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 237.16666666666666) internal successors, (1423), 6 states have internal predecessors, (1423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:20:26,792 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 381.0) internal successors, (2667), 7 states have internal predecessors, (2667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:20:26,793 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 381.0) internal successors, (2667), 7 states have internal predecessors, (2667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:20:26,793 INFO L175 Difference]: Start difference. First operand has 87 places, 94 transitions, 306 flow. Second operand 6 states and 1423 transitions. [2023-08-29 09:20:26,793 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 128 transitions, 621 flow [2023-08-29 09:20:26,800 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 128 transitions, 621 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 09:20:26,801 INFO L231 Difference]: Finished difference. Result has 92 places, 113 transitions, 525 flow [2023-08-29 09:20:26,801 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=381, PETRI_DIFFERENCE_MINUEND_FLOW=304, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=525, PETRI_PLACES=92, PETRI_TRANSITIONS=113} [2023-08-29 09:20:26,802 INFO L281 CegarLoopForPetriNet]: 102 programPoint places, -10 predicate places. [2023-08-29 09:20:26,802 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 113 transitions, 525 flow [2023-08-29 09:20:26,803 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 229.5) internal successors, (1377), 6 states have internal predecessors, (1377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:20:26,803 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 09:20:26,803 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] [2023-08-29 09:20:26,803 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-29 09:20:26,803 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-08-29 09:20:26,804 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 09:20:26,804 INFO L85 PathProgramCache]: Analyzing trace with hash 1433797277, now seen corresponding path program 1 times [2023-08-29 09:20:26,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 09:20:26,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345768807] [2023-08-29 09:20:26,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 09:20:26,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 09:20:26,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 09:20:27,371 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 09:20:27,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 09:20:27,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345768807] [2023-08-29 09:20:27,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [345768807] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 09:20:27,372 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 09:20:27,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-29 09:20:27,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294565767] [2023-08-29 09:20:27,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 09:20:27,373 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-29 09:20:27,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 09:20:27,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-29 09:20:27,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2023-08-29 09:20:28,466 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 212 out of 381 [2023-08-29 09:20:28,468 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 113 transitions, 525 flow. Second operand has 11 states, 11 states have (on average 213.54545454545453) internal successors, (2349), 11 states have internal predecessors, (2349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:20:28,468 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 09:20:28,468 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 212 of 381 [2023-08-29 09:20:28,469 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 09:20:29,410 INFO L130 PetriNetUnfolder]: 3044/6567 cut-off events. [2023-08-29 09:20:29,410 INFO L131 PetriNetUnfolder]: For 6290/6309 co-relation queries the response was YES. [2023-08-29 09:20:29,418 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17950 conditions, 6567 events. 3044/6567 cut-off events. For 6290/6309 co-relation queries the response was YES. Maximal size of possible extension queue 220. Compared 47963 event pairs, 1008 based on Foata normal form. 138/6018 useless extension candidates. Maximal degree in co-relation 17940. Up to 2298 conditions per place. [2023-08-29 09:20:29,438 INFO L137 encePairwiseOnDemand]: 367/381 looper letters, 191 selfloop transitions, 42 changer transitions 27/296 dead transitions. [2023-08-29 09:20:29,439 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 296 transitions, 1700 flow [2023-08-29 09:20:29,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-29 09:20:29,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-29 09:20:29,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 2765 transitions. [2023-08-29 09:20:29,443 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6047681539807525 [2023-08-29 09:20:29,443 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 2765 transitions. [2023-08-29 09:20:29,443 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 2765 transitions. [2023-08-29 09:20:29,444 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 09:20:29,444 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 2765 transitions. [2023-08-29 09:20:29,448 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 230.41666666666666) internal successors, (2765), 12 states have internal predecessors, (2765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:20:29,453 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 381.0) internal successors, (4953), 13 states have internal predecessors, (4953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:20:29,454 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 381.0) internal successors, (4953), 13 states have internal predecessors, (4953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:20:29,454 INFO L175 Difference]: Start difference. First operand has 92 places, 113 transitions, 525 flow. Second operand 12 states and 2765 transitions. [2023-08-29 09:20:29,454 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 296 transitions, 1700 flow [2023-08-29 09:20:29,463 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 296 transitions, 1651 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-29 09:20:29,465 INFO L231 Difference]: Finished difference. Result has 106 places, 125 transitions, 746 flow [2023-08-29 09:20:29,466 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=381, PETRI_DIFFERENCE_MINUEND_FLOW=498, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=746, PETRI_PLACES=106, PETRI_TRANSITIONS=125} [2023-08-29 09:20:29,466 INFO L281 CegarLoopForPetriNet]: 102 programPoint places, 4 predicate places. [2023-08-29 09:20:29,466 INFO L495 AbstractCegarLoop]: Abstraction has has 106 places, 125 transitions, 746 flow [2023-08-29 09:20:29,467 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 213.54545454545453) internal successors, (2349), 11 states have internal predecessors, (2349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:20:29,467 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 09:20:29,467 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] [2023-08-29 09:20:29,467 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-29 09:20:29,468 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-08-29 09:20:29,468 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 09:20:29,468 INFO L85 PathProgramCache]: Analyzing trace with hash -864653799, now seen corresponding path program 2 times [2023-08-29 09:20:29,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 09:20:29,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794633543] [2023-08-29 09:20:29,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 09:20:29,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 09:20:29,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 09:20:29,779 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 09:20:29,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 09:20:29,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794633543] [2023-08-29 09:20:29,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794633543] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 09:20:29,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 09:20:29,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-29 09:20:29,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581517512] [2023-08-29 09:20:29,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 09:20:29,781 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-29 09:20:29,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 09:20:29,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-29 09:20:29,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2023-08-29 09:20:30,496 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 225 out of 381 [2023-08-29 09:20:30,498 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 125 transitions, 746 flow. Second operand has 9 states, 9 states have (on average 226.77777777777777) internal successors, (2041), 9 states have internal predecessors, (2041), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:20:30,498 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 09:20:30,498 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 225 of 381 [2023-08-29 09:20:30,498 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 09:20:31,143 INFO L130 PetriNetUnfolder]: 2871/5458 cut-off events. [2023-08-29 09:20:31,143 INFO L131 PetriNetUnfolder]: For 9331/9581 co-relation queries the response was YES. [2023-08-29 09:20:31,153 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18131 conditions, 5458 events. 2871/5458 cut-off events. For 9331/9581 co-relation queries the response was YES. Maximal size of possible extension queue 161. Compared 33743 event pairs, 648 based on Foata normal form. 69/4949 useless extension candidates. Maximal degree in co-relation 18115. Up to 2294 conditions per place. [2023-08-29 09:20:31,175 INFO L137 encePairwiseOnDemand]: 375/381 looper letters, 175 selfloop transitions, 8 changer transitions 16/234 dead transitions. [2023-08-29 09:20:31,175 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 234 transitions, 1510 flow [2023-08-29 09:20:31,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-29 09:20:31,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-29 09:20:31,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1724 transitions. [2023-08-29 09:20:31,211 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6464191976003 [2023-08-29 09:20:31,211 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1724 transitions. [2023-08-29 09:20:31,211 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1724 transitions. [2023-08-29 09:20:31,212 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 09:20:31,212 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1724 transitions. [2023-08-29 09:20:31,214 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 246.28571428571428) internal successors, (1724), 7 states have internal predecessors, (1724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:20:31,217 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 381.0) internal successors, (3048), 8 states have internal predecessors, (3048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:20:31,217 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 381.0) internal successors, (3048), 8 states have internal predecessors, (3048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:20:31,217 INFO L175 Difference]: Start difference. First operand has 106 places, 125 transitions, 746 flow. Second operand 7 states and 1724 transitions. [2023-08-29 09:20:31,218 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 234 transitions, 1510 flow [2023-08-29 09:20:31,250 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 234 transitions, 1451 flow, removed 1 selfloop flow, removed 7 redundant places. [2023-08-29 09:20:31,254 INFO L231 Difference]: Finished difference. Result has 102 places, 120 transitions, 684 flow [2023-08-29 09:20:31,254 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=381, PETRI_DIFFERENCE_MINUEND_FLOW=681, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=684, PETRI_PLACES=102, PETRI_TRANSITIONS=120} [2023-08-29 09:20:31,255 INFO L281 CegarLoopForPetriNet]: 102 programPoint places, 0 predicate places. [2023-08-29 09:20:31,255 INFO L495 AbstractCegarLoop]: Abstraction has has 102 places, 120 transitions, 684 flow [2023-08-29 09:20:31,257 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 226.77777777777777) internal successors, (2041), 9 states have internal predecessors, (2041), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:20:31,257 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 09:20:31,258 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, 1] [2023-08-29 09:20:31,258 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-29 09:20:31,258 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread0Err1ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-08-29 09:20:31,259 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 09:20:31,259 INFO L85 PathProgramCache]: Analyzing trace with hash 165991925, now seen corresponding path program 1 times [2023-08-29 09:20:31,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 09:20:31,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558349774] [2023-08-29 09:20:31,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 09:20:31,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 09:20:31,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 09:20:31,477 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 09:20:31,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 09:20:31,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558349774] [2023-08-29 09:20:31,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [558349774] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 09:20:31,478 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 09:20:31,478 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 09:20:31,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157462594] [2023-08-29 09:20:31,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 09:20:31,479 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 09:20:31,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 09:20:31,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 09:20:31,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 09:20:31,769 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 228 out of 381 [2023-08-29 09:20:31,770 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 120 transitions, 684 flow. Second operand has 6 states, 6 states have (on average 231.5) internal successors, (1389), 6 states have internal predecessors, (1389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:20:31,770 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 09:20:31,770 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 228 of 381 [2023-08-29 09:20:31,771 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 09:20:32,800 INFO L130 PetriNetUnfolder]: 8768/14402 cut-off events. [2023-08-29 09:20:32,800 INFO L131 PetriNetUnfolder]: For 44140/44999 co-relation queries the response was YES. [2023-08-29 09:20:32,822 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51249 conditions, 14402 events. 8768/14402 cut-off events. For 44140/44999 co-relation queries the response was YES. Maximal size of possible extension queue 625. Compared 93137 event pairs, 1246 based on Foata normal form. 244/13380 useless extension candidates. Maximal degree in co-relation 51236. Up to 9712 conditions per place. [2023-08-29 09:20:32,865 INFO L137 encePairwiseOnDemand]: 371/381 looper letters, 90 selfloop transitions, 197 changer transitions 0/326 dead transitions. [2023-08-29 09:20:32,866 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 326 transitions, 3084 flow [2023-08-29 09:20:32,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 09:20:32,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 09:20:32,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1433 transitions. [2023-08-29 09:20:32,868 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6268591426071741 [2023-08-29 09:20:32,868 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1433 transitions. [2023-08-29 09:20:32,869 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1433 transitions. [2023-08-29 09:20:32,869 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 09:20:32,869 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1433 transitions. [2023-08-29 09:20:32,871 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 238.83333333333334) internal successors, (1433), 6 states have internal predecessors, (1433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:20:32,873 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 381.0) internal successors, (2667), 7 states have internal predecessors, (2667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:20:32,874 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 381.0) internal successors, (2667), 7 states have internal predecessors, (2667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:20:32,874 INFO L175 Difference]: Start difference. First operand has 102 places, 120 transitions, 684 flow. Second operand 6 states and 1433 transitions. [2023-08-29 09:20:32,874 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 326 transitions, 3084 flow [2023-08-29 09:20:32,895 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 326 transitions, 3067 flow, removed 1 selfloop flow, removed 6 redundant places. [2023-08-29 09:20:32,898 INFO L231 Difference]: Finished difference. Result has 103 places, 316 transitions, 3361 flow [2023-08-29 09:20:32,899 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=381, PETRI_DIFFERENCE_MINUEND_FLOW=667, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3361, PETRI_PLACES=103, PETRI_TRANSITIONS=316} [2023-08-29 09:20:32,899 INFO L281 CegarLoopForPetriNet]: 102 programPoint places, 1 predicate places. [2023-08-29 09:20:32,899 INFO L495 AbstractCegarLoop]: Abstraction has has 103 places, 316 transitions, 3361 flow [2023-08-29 09:20:32,900 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 231.5) internal successors, (1389), 6 states have internal predecessors, (1389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:20:32,900 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 09:20:32,900 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, 1, 1] [2023-08-29 09:20:32,900 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-29 09:20:32,900 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread0Err1ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-08-29 09:20:32,901 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 09:20:32,901 INFO L85 PathProgramCache]: Analyzing trace with hash 1043767927, now seen corresponding path program 1 times [2023-08-29 09:20:32,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 09:20:32,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409655592] [2023-08-29 09:20:32,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 09:20:32,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 09:20:32,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 09:20:33,165 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 09:20:33,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 09:20:33,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409655592] [2023-08-29 09:20:33,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409655592] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 09:20:33,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 09:20:33,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 09:20:33,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637714963] [2023-08-29 09:20:33,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 09:20:33,167 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-29 09:20:33,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 09:20:33,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-29 09:20:33,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-08-29 09:20:33,804 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 226 out of 381 [2023-08-29 09:20:33,806 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 316 transitions, 3361 flow. Second operand has 9 states, 9 states have (on average 228.44444444444446) internal successors, (2056), 9 states have internal predecessors, (2056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:20:33,806 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 09:20:33,806 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 226 of 381 [2023-08-29 09:20:33,806 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 09:20:35,084 INFO L130 PetriNetUnfolder]: 8197/14037 cut-off events. [2023-08-29 09:20:35,084 INFO L131 PetriNetUnfolder]: For 66771/68062 co-relation queries the response was YES. [2023-08-29 09:20:35,107 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60859 conditions, 14037 events. 8197/14037 cut-off events. For 66771/68062 co-relation queries the response was YES. Maximal size of possible extension queue 588. Compared 94896 event pairs, 682 based on Foata normal form. 912/13969 useless extension candidates. Maximal degree in co-relation 60842. Up to 7564 conditions per place. [2023-08-29 09:20:35,151 INFO L137 encePairwiseOnDemand]: 374/381 looper letters, 367 selfloop transitions, 12 changer transitions 0/418 dead transitions. [2023-08-29 09:20:35,152 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 418 transitions, 5217 flow [2023-08-29 09:20:35,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-29 09:20:35,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-29 09:20:35,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1865 transitions. [2023-08-29 09:20:35,155 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6118766404199475 [2023-08-29 09:20:35,155 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1865 transitions. [2023-08-29 09:20:35,155 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1865 transitions. [2023-08-29 09:20:35,156 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 09:20:35,156 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1865 transitions. [2023-08-29 09:20:35,159 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 233.125) internal successors, (1865), 8 states have internal predecessors, (1865), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:20:35,162 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 381.0) internal successors, (3429), 9 states have internal predecessors, (3429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:20:35,162 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 381.0) internal successors, (3429), 9 states have internal predecessors, (3429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:20:35,162 INFO L175 Difference]: Start difference. First operand has 103 places, 316 transitions, 3361 flow. Second operand 8 states and 1865 transitions. [2023-08-29 09:20:35,163 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 418 transitions, 5217 flow [2023-08-29 09:20:35,218 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 418 transitions, 5167 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 09:20:35,222 INFO L231 Difference]: Finished difference. Result has 108 places, 315 transitions, 3331 flow [2023-08-29 09:20:35,222 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=381, PETRI_DIFFERENCE_MINUEND_FLOW=3307, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=315, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=303, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=3331, PETRI_PLACES=108, PETRI_TRANSITIONS=315} [2023-08-29 09:20:35,223 INFO L281 CegarLoopForPetriNet]: 102 programPoint places, 6 predicate places. [2023-08-29 09:20:35,223 INFO L495 AbstractCegarLoop]: Abstraction has has 108 places, 315 transitions, 3331 flow [2023-08-29 09:20:35,224 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 228.44444444444446) internal successors, (2056), 9 states have internal predecessors, (2056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:20:35,224 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 09:20:35,224 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 09:20:35,224 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-29 09:20:35,224 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread0Err2ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-08-29 09:20:35,224 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 09:20:35,225 INFO L85 PathProgramCache]: Analyzing trace with hash -806090280, now seen corresponding path program 1 times [2023-08-29 09:20:35,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 09:20:35,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214086761] [2023-08-29 09:20:35,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 09:20:35,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 09:20:35,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 09:20:35,436 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 09:20:35,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 09:20:35,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214086761] [2023-08-29 09:20:35,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214086761] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 09:20:35,437 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 09:20:35,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 09:20:35,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151479755] [2023-08-29 09:20:35,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 09:20:35,437 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 09:20:35,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 09:20:35,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 09:20:35,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 09:20:35,739 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 228 out of 381 [2023-08-29 09:20:35,740 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 315 transitions, 3331 flow. Second operand has 6 states, 6 states have (on average 231.83333333333334) internal successors, (1391), 6 states have internal predecessors, (1391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:20:35,740 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 09:20:35,740 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 228 of 381 [2023-08-29 09:20:35,740 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 09:20:37,386 INFO L130 PetriNetUnfolder]: 11427/18163 cut-off events. [2023-08-29 09:20:37,386 INFO L131 PetriNetUnfolder]: For 110183/111480 co-relation queries the response was YES. [2023-08-29 09:20:37,431 INFO L83 FinitePrefix]: Finished finitePrefix Result has 80206 conditions, 18163 events. 11427/18163 cut-off events. For 110183/111480 co-relation queries the response was YES. Maximal size of possible extension queue 592. Compared 114733 event pairs, 1496 based on Foata normal form. 347/17361 useless extension candidates. Maximal degree in co-relation 80189. Up to 12207 conditions per place. [2023-08-29 09:20:37,509 INFO L137 encePairwiseOnDemand]: 372/381 looper letters, 280 selfloop transitions, 149 changer transitions 0/471 dead transitions. [2023-08-29 09:20:37,510 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 471 transitions, 5921 flow [2023-08-29 09:20:37,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 09:20:37,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 09:20:37,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1427 transitions. [2023-08-29 09:20:37,513 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6242344706911636 [2023-08-29 09:20:37,513 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1427 transitions. [2023-08-29 09:20:37,513 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1427 transitions. [2023-08-29 09:20:37,514 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 09:20:37,514 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1427 transitions. [2023-08-29 09:20:37,516 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 237.83333333333334) internal successors, (1427), 6 states have internal predecessors, (1427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:20:37,518 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 381.0) internal successors, (2667), 7 states have internal predecessors, (2667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:20:37,519 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 381.0) internal successors, (2667), 7 states have internal predecessors, (2667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:20:37,519 INFO L175 Difference]: Start difference. First operand has 108 places, 315 transitions, 3331 flow. Second operand 6 states and 1427 transitions. [2023-08-29 09:20:37,519 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 471 transitions, 5921 flow [2023-08-29 09:20:37,568 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 471 transitions, 5899 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-08-29 09:20:37,573 INFO L231 Difference]: Finished difference. Result has 112 places, 463 transitions, 5699 flow [2023-08-29 09:20:37,573 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=381, PETRI_DIFFERENCE_MINUEND_FLOW=3309, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=315, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=274, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=5699, PETRI_PLACES=112, PETRI_TRANSITIONS=463} [2023-08-29 09:20:37,574 INFO L281 CegarLoopForPetriNet]: 102 programPoint places, 10 predicate places. [2023-08-29 09:20:37,574 INFO L495 AbstractCegarLoop]: Abstraction has has 112 places, 463 transitions, 5699 flow [2023-08-29 09:20:37,575 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 231.83333333333334) internal successors, (1391), 6 states have internal predecessors, (1391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:20:37,575 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 09:20:37,575 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 09:20:37,575 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-29 09:20:37,575 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread0Err2ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-08-29 09:20:37,575 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 09:20:37,576 INFO L85 PathProgramCache]: Analyzing trace with hash -1611855446, now seen corresponding path program 1 times [2023-08-29 09:20:37,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 09:20:37,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950295109] [2023-08-29 09:20:37,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 09:20:37,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 09:20:37,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 09:20:37,936 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 09:20:37,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 09:20:37,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950295109] [2023-08-29 09:20:37,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1950295109] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 09:20:37,937 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 09:20:37,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 09:20:37,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890365864] [2023-08-29 09:20:37,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 09:20:37,938 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-29 09:20:37,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 09:20:37,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-29 09:20:37,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-08-29 09:20:38,520 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 226 out of 381 [2023-08-29 09:20:38,521 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 463 transitions, 5699 flow. Second operand has 9 states, 9 states have (on average 228.66666666666666) internal successors, (2058), 9 states have internal predecessors, (2058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:20:38,521 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 09:20:38,521 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 226 of 381 [2023-08-29 09:20:38,521 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 09:20:40,282 INFO L130 PetriNetUnfolder]: 11147/17953 cut-off events. [2023-08-29 09:20:40,283 INFO L131 PetriNetUnfolder]: For 138180/139429 co-relation queries the response was YES. [2023-08-29 09:20:40,323 INFO L83 FinitePrefix]: Finished finitePrefix Result has 89219 conditions, 17953 events. 11147/17953 cut-off events. For 138180/139429 co-relation queries the response was YES. Maximal size of possible extension queue 587. Compared 114978 event pairs, 1043 based on Foata normal form. 443/17335 useless extension candidates. Maximal degree in co-relation 89198. Up to 10497 conditions per place. [2023-08-29 09:20:40,383 INFO L137 encePairwiseOnDemand]: 374/381 looper letters, 487 selfloop transitions, 12 changer transitions 0/541 dead transitions. [2023-08-29 09:20:40,384 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 541 transitions, 7667 flow [2023-08-29 09:20:40,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-29 09:20:40,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-29 09:20:40,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1861 transitions. [2023-08-29 09:20:40,387 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6105643044619422 [2023-08-29 09:20:40,387 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1861 transitions. [2023-08-29 09:20:40,387 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1861 transitions. [2023-08-29 09:20:40,388 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 09:20:40,388 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1861 transitions. [2023-08-29 09:20:40,391 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 232.625) internal successors, (1861), 8 states have internal predecessors, (1861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:20:40,393 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 381.0) internal successors, (3429), 9 states have internal predecessors, (3429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:20:40,394 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 381.0) internal successors, (3429), 9 states have internal predecessors, (3429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:20:40,394 INFO L175 Difference]: Start difference. First operand has 112 places, 463 transitions, 5699 flow. Second operand 8 states and 1861 transitions. [2023-08-29 09:20:40,394 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 541 transitions, 7667 flow [2023-08-29 09:20:40,500 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 541 transitions, 7341 flow, removed 144 selfloop flow, removed 1 redundant places. [2023-08-29 09:20:40,506 INFO L231 Difference]: Finished difference. Result has 117 places, 462 transitions, 5393 flow [2023-08-29 09:20:40,506 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=381, PETRI_DIFFERENCE_MINUEND_FLOW=5369, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=462, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=450, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=5393, PETRI_PLACES=117, PETRI_TRANSITIONS=462} [2023-08-29 09:20:40,507 INFO L281 CegarLoopForPetriNet]: 102 programPoint places, 15 predicate places. [2023-08-29 09:20:40,507 INFO L495 AbstractCegarLoop]: Abstraction has has 117 places, 462 transitions, 5393 flow [2023-08-29 09:20:40,507 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 228.66666666666666) internal successors, (2058), 9 states have internal predecessors, (2058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:20:40,507 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 09:20:40,508 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 09:20:40,508 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-29 09:20:40,508 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread0Err3ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-08-29 09:20:40,508 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 09:20:40,508 INFO L85 PathProgramCache]: Analyzing trace with hash 230601007, now seen corresponding path program 1 times [2023-08-29 09:20:40,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 09:20:40,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627891874] [2023-08-29 09:20:40,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 09:20:40,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 09:20:40,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 09:20:40,727 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 09:20:40,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 09:20:40,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627891874] [2023-08-29 09:20:40,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627891874] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 09:20:40,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 09:20:40,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 09:20:40,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323961690] [2023-08-29 09:20:40,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 09:20:40,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 09:20:40,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 09:20:40,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 09:20:40,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 09:20:41,024 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 228 out of 381 [2023-08-29 09:20:41,025 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 462 transitions, 5393 flow. Second operand has 6 states, 6 states have (on average 232.16666666666666) internal successors, (1393), 6 states have internal predecessors, (1393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:20:41,025 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 09:20:41,025 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 228 of 381 [2023-08-29 09:20:41,025 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 09:20:42,664 INFO L130 PetriNetUnfolder]: 12143/19139 cut-off events. [2023-08-29 09:20:42,664 INFO L131 PetriNetUnfolder]: For 153754/155211 co-relation queries the response was YES. [2023-08-29 09:20:42,716 INFO L83 FinitePrefix]: Finished finitePrefix Result has 92511 conditions, 19139 events. 12143/19139 cut-off events. For 153754/155211 co-relation queries the response was YES. Maximal size of possible extension queue 587. Compared 119522 event pairs, 1451 based on Foata normal form. 403/18467 useless extension candidates. Maximal degree in co-relation 92490. Up to 12942 conditions per place. [2023-08-29 09:20:42,782 INFO L137 encePairwiseOnDemand]: 373/381 looper letters, 422 selfloop transitions, 149 changer transitions 0/616 dead transitions. [2023-08-29 09:20:42,782 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 616 transitions, 8429 flow [2023-08-29 09:20:42,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 09:20:42,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 09:20:42,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1421 transitions. [2023-08-29 09:20:42,785 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6216097987751531 [2023-08-29 09:20:42,785 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1421 transitions. [2023-08-29 09:20:42,785 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1421 transitions. [2023-08-29 09:20:42,786 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 09:20:42,786 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1421 transitions. [2023-08-29 09:20:42,787 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 236.83333333333334) internal successors, (1421), 6 states have internal predecessors, (1421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:20:42,789 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 381.0) internal successors, (2667), 7 states have internal predecessors, (2667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:20:42,790 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 381.0) internal successors, (2667), 7 states have internal predecessors, (2667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:20:42,790 INFO L175 Difference]: Start difference. First operand has 117 places, 462 transitions, 5393 flow. Second operand 6 states and 1421 transitions. [2023-08-29 09:20:42,790 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 616 transitions, 8429 flow [2023-08-29 09:20:42,870 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 616 transitions, 8407 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-08-29 09:20:42,877 INFO L231 Difference]: Finished difference. Result has 121 places, 610 transitions, 7929 flow [2023-08-29 09:20:42,877 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=381, PETRI_DIFFERENCE_MINUEND_FLOW=5371, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=462, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=421, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=7929, PETRI_PLACES=121, PETRI_TRANSITIONS=610} [2023-08-29 09:20:42,877 INFO L281 CegarLoopForPetriNet]: 102 programPoint places, 19 predicate places. [2023-08-29 09:20:42,877 INFO L495 AbstractCegarLoop]: Abstraction has has 121 places, 610 transitions, 7929 flow [2023-08-29 09:20:42,878 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 232.16666666666666) internal successors, (1393), 6 states have internal predecessors, (1393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:20:42,878 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 09:20:42,878 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 09:20:42,878 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-29 09:20:42,878 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread0Err3ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-08-29 09:20:42,879 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 09:20:42,879 INFO L85 PathProgramCache]: Analyzing trace with hash 301300874, now seen corresponding path program 1 times [2023-08-29 09:20:42,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 09:20:42,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418386809] [2023-08-29 09:20:42,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 09:20:42,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 09:20:42,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 09:20:43,179 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 09:20:43,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 09:20:43,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418386809] [2023-08-29 09:20:43,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418386809] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 09:20:43,180 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 09:20:43,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 09:20:43,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621388145] [2023-08-29 09:20:43,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 09:20:43,181 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-29 09:20:43,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 09:20:43,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-29 09:20:43,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-08-29 09:20:43,791 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 226 out of 381 [2023-08-29 09:20:43,792 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 610 transitions, 7929 flow. Second operand has 9 states, 9 states have (on average 228.88888888888889) internal successors, (2060), 9 states have internal predecessors, (2060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:20:43,792 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 09:20:43,792 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 226 of 381 [2023-08-29 09:20:43,793 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 09:20:46,091 INFO L130 PetriNetUnfolder]: 12368/19504 cut-off events. [2023-08-29 09:20:46,091 INFO L131 PetriNetUnfolder]: For 177388/178853 co-relation queries the response was YES. [2023-08-29 09:20:46,165 INFO L83 FinitePrefix]: Finished finitePrefix Result has 100668 conditions, 19504 events. 12368/19504 cut-off events. For 177388/178853 co-relation queries the response was YES. Maximal size of possible extension queue 587. Compared 122056 event pairs, 1263 based on Foata normal form. 443/18914 useless extension candidates. Maximal degree in co-relation 100643. Up to 11679 conditions per place. [2023-08-29 09:20:46,259 INFO L137 encePairwiseOnDemand]: 374/381 looper letters, 607 selfloop transitions, 12 changer transitions 0/664 dead transitions. [2023-08-29 09:20:46,259 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 664 transitions, 9913 flow [2023-08-29 09:20:46,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-29 09:20:46,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-29 09:20:46,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1857 transitions. [2023-08-29 09:20:46,271 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.609251968503937 [2023-08-29 09:20:46,271 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1857 transitions. [2023-08-29 09:20:46,271 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1857 transitions. [2023-08-29 09:20:46,272 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 09:20:46,272 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1857 transitions. [2023-08-29 09:20:46,275 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 232.125) internal successors, (1857), 8 states have internal predecessors, (1857), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:20:46,277 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 381.0) internal successors, (3429), 9 states have internal predecessors, (3429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:20:46,277 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 381.0) internal successors, (3429), 9 states have internal predecessors, (3429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:20:46,278 INFO L175 Difference]: Start difference. First operand has 121 places, 610 transitions, 7929 flow. Second operand 8 states and 1857 transitions. [2023-08-29 09:20:46,278 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 664 transitions, 9913 flow [2023-08-29 09:20:46,449 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 664 transitions, 9779 flow, removed 48 selfloop flow, removed 1 redundant places. [2023-08-29 09:20:46,455 INFO L231 Difference]: Finished difference. Result has 126 places, 609 transitions, 7815 flow [2023-08-29 09:20:46,456 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=381, PETRI_DIFFERENCE_MINUEND_FLOW=7791, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=609, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=597, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=7815, PETRI_PLACES=126, PETRI_TRANSITIONS=609} [2023-08-29 09:20:46,456 INFO L281 CegarLoopForPetriNet]: 102 programPoint places, 24 predicate places. [2023-08-29 09:20:46,456 INFO L495 AbstractCegarLoop]: Abstraction has has 126 places, 609 transitions, 7815 flow [2023-08-29 09:20:46,457 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 228.88888888888889) internal successors, (2060), 9 states have internal predecessors, (2060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:20:46,457 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 09:20:46,457 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, 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, 1, 1, 1] [2023-08-29 09:20:46,457 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-29 09:20:46,457 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread0Err4ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-08-29 09:20:46,458 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 09:20:46,458 INFO L85 PathProgramCache]: Analyzing trace with hash -1934797365, now seen corresponding path program 1 times [2023-08-29 09:20:46,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 09:20:46,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443521508] [2023-08-29 09:20:46,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 09:20:46,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 09:20:46,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 09:20:46,707 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 09:20:46,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 09:20:46,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443521508] [2023-08-29 09:20:46,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1443521508] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 09:20:46,707 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 09:20:46,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 09:20:46,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292745150] [2023-08-29 09:20:46,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 09:20:46,708 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 09:20:46,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 09:20:46,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 09:20:46,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 09:20:47,041 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 228 out of 381 [2023-08-29 09:20:47,042 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 609 transitions, 7815 flow. Second operand has 6 states, 6 states have (on average 232.5) internal successors, (1395), 6 states have internal predecessors, (1395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:20:47,042 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 09:20:47,042 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 228 of 381 [2023-08-29 09:20:47,042 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 09:20:48,950 INFO L130 PetriNetUnfolder]: 12633/19768 cut-off events. [2023-08-29 09:20:48,950 INFO L131 PetriNetUnfolder]: For 190355/191887 co-relation queries the response was YES. [2023-08-29 09:20:49,013 INFO L83 FinitePrefix]: Finished finitePrefix Result has 102040 conditions, 19768 events. 12633/19768 cut-off events. For 190355/191887 co-relation queries the response was YES. Maximal size of possible extension queue 587. Compared 122458 event pairs, 1508 based on Foata normal form. 419/19212 useless extension candidates. Maximal degree in co-relation 102015. Up to 13485 conditions per place. [2023-08-29 09:20:49,055 INFO L137 encePairwiseOnDemand]: 374/381 looper letters, 417 selfloop transitions, 101 changer transitions 147/713 dead transitions. [2023-08-29 09:20:49,055 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 713 transitions, 10633 flow [2023-08-29 09:20:49,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 09:20:49,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 09:20:49,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1415 transitions. [2023-08-29 09:20:49,058 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6189851268591426 [2023-08-29 09:20:49,058 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1415 transitions. [2023-08-29 09:20:49,058 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1415 transitions. [2023-08-29 09:20:49,059 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 09:20:49,059 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1415 transitions. [2023-08-29 09:20:49,060 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 235.83333333333334) internal successors, (1415), 6 states have internal predecessors, (1415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:20:49,062 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 381.0) internal successors, (2667), 7 states have internal predecessors, (2667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:20:49,063 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 381.0) internal successors, (2667), 7 states have internal predecessors, (2667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:20:49,063 INFO L175 Difference]: Start difference. First operand has 126 places, 609 transitions, 7815 flow. Second operand 6 states and 1415 transitions. [2023-08-29 09:20:49,063 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 713 transitions, 10633 flow [2023-08-29 09:20:49,190 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 713 transitions, 10611 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-08-29 09:20:49,197 INFO L231 Difference]: Finished difference. Result has 130 places, 562 transitions, 7480 flow [2023-08-29 09:20:49,197 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=381, PETRI_DIFFERENCE_MINUEND_FLOW=7793, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=609, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=580, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=7480, PETRI_PLACES=130, PETRI_TRANSITIONS=562} [2023-08-29 09:20:49,198 INFO L281 CegarLoopForPetriNet]: 102 programPoint places, 28 predicate places. [2023-08-29 09:20:49,198 INFO L495 AbstractCegarLoop]: Abstraction has has 130 places, 562 transitions, 7480 flow [2023-08-29 09:20:49,198 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 232.5) internal successors, (1395), 6 states have internal predecessors, (1395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:20:49,198 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 09:20:49,198 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, 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, 1, 1, 1, 1] [2023-08-29 09:20:49,198 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-29 09:20:49,198 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread0Err4ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-08-29 09:20:49,199 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 09:20:49,199 INFO L85 PathProgramCache]: Analyzing trace with hash -1321419293, now seen corresponding path program 1 times [2023-08-29 09:20:49,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 09:20:49,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051842127] [2023-08-29 09:20:49,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 09:20:49,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 09:20:49,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 09:20:49,499 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 09:20:49,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 09:20:49,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051842127] [2023-08-29 09:20:49,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2051842127] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 09:20:49,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 09:20:49,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 09:20:49,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526152329] [2023-08-29 09:20:49,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 09:20:49,500 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-29 09:20:49,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 09:20:49,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-29 09:20:49,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-08-29 09:20:50,025 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 215 out of 381 [2023-08-29 09:20:50,026 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 562 transitions, 7480 flow. Second operand has 9 states, 9 states have (on average 218.11111111111111) internal successors, (1963), 9 states have internal predecessors, (1963), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:20:50,026 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 09:20:50,026 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 215 of 381 [2023-08-29 09:20:50,026 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 09:20:51,956 INFO L130 PetriNetUnfolder]: 11107/18082 cut-off events. [2023-08-29 09:20:51,956 INFO L131 PetriNetUnfolder]: For 169262/170314 co-relation queries the response was YES. [2023-08-29 09:20:52,015 INFO L83 FinitePrefix]: Finished finitePrefix Result has 93700 conditions, 18082 events. 11107/18082 cut-off events. For 169262/170314 co-relation queries the response was YES. Maximal size of possible extension queue 519. Compared 117951 event pairs, 1263 based on Foata normal form. 316/17555 useless extension candidates. Maximal degree in co-relation 93671. Up to 11681 conditions per place. [2023-08-29 09:20:52,031 INFO L137 encePairwiseOnDemand]: 374/381 looper letters, 0 selfloop transitions, 0 changer transitions 568/568 dead transitions. [2023-08-29 09:20:52,032 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 568 transitions, 8530 flow [2023-08-29 09:20:52,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-29 09:20:52,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-29 09:20:52,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1765 transitions. [2023-08-29 09:20:52,035 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5790682414698163 [2023-08-29 09:20:52,035 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1765 transitions. [2023-08-29 09:20:52,035 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1765 transitions. [2023-08-29 09:20:52,036 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 09:20:52,036 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1765 transitions. [2023-08-29 09:20:52,038 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 220.625) internal successors, (1765), 8 states have internal predecessors, (1765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:20:52,040 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 381.0) internal successors, (3429), 9 states have internal predecessors, (3429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:20:52,040 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 381.0) internal successors, (3429), 9 states have internal predecessors, (3429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:20:52,040 INFO L175 Difference]: Start difference. First operand has 130 places, 562 transitions, 7480 flow. Second operand 8 states and 1765 transitions. [2023-08-29 09:20:52,040 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 568 transitions, 8530 flow [2023-08-29 09:20:52,226 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 568 transitions, 8456 flow, removed 24 selfloop flow, removed 1 redundant places. [2023-08-29 09:20:52,229 INFO L231 Difference]: Finished difference. Result has 135 places, 0 transitions, 0 flow [2023-08-29 09:20:52,230 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=381, PETRI_DIFFERENCE_MINUEND_FLOW=7402, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=561, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=561, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=0, PETRI_PLACES=135, PETRI_TRANSITIONS=0} [2023-08-29 09:20:52,230 INFO L281 CegarLoopForPetriNet]: 102 programPoint places, 33 predicate places. [2023-08-29 09:20:52,230 INFO L495 AbstractCegarLoop]: Abstraction has has 135 places, 0 transitions, 0 flow [2023-08-29 09:20:52,231 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 218.11111111111111) internal successors, (1963), 9 states have internal predecessors, (1963), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 09:20:52,232 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err0ASSERT_VIOLATIONDATA_RACE (39 of 40 remaining) [2023-08-29 09:20:52,233 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err1ASSERT_VIOLATIONDATA_RACE (38 of 40 remaining) [2023-08-29 09:20:52,233 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err2ASSERT_VIOLATIONDATA_RACE (37 of 40 remaining) [2023-08-29 09:20:52,233 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err3ASSERT_VIOLATIONDATA_RACE (36 of 40 remaining) [2023-08-29 09:20:52,233 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err4ASSERT_VIOLATIONDATA_RACE (35 of 40 remaining) [2023-08-29 09:20:52,233 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (34 of 40 remaining) [2023-08-29 09:20:52,233 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (33 of 40 remaining) [2023-08-29 09:20:52,233 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err7INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (32 of 40 remaining) [2023-08-29 09:20:52,233 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err9INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (31 of 40 remaining) [2023-08-29 09:20:52,234 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err10INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (30 of 40 remaining) [2023-08-29 09:20:52,234 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (29 of 40 remaining) [2023-08-29 09:20:52,234 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (28 of 40 remaining) [2023-08-29 09:20:52,234 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (27 of 40 remaining) [2023-08-29 09:20:52,234 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (26 of 40 remaining) [2023-08-29 09:20:52,234 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (25 of 40 remaining) [2023-08-29 09:20:52,234 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (24 of 40 remaining) [2023-08-29 09:20:52,234 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (23 of 40 remaining) [2023-08-29 09:20:52,234 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (22 of 40 remaining) [2023-08-29 09:20:52,235 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (21 of 40 remaining) [2023-08-29 09:20:52,235 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (20 of 40 remaining) [2023-08-29 09:20:52,235 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 40 remaining) [2023-08-29 09:20:52,235 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err0ASSERT_VIOLATIONDATA_RACE (18 of 40 remaining) [2023-08-29 09:20:52,235 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err1ASSERT_VIOLATIONDATA_RACE (17 of 40 remaining) [2023-08-29 09:20:52,235 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err2ASSERT_VIOLATIONDATA_RACE (16 of 40 remaining) [2023-08-29 09:20:52,235 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err3ASSERT_VIOLATIONDATA_RACE (15 of 40 remaining) [2023-08-29 09:20:52,235 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err4ASSERT_VIOLATIONDATA_RACE (14 of 40 remaining) [2023-08-29 09:20:52,236 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Thread1of1ForFork5Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 40 remaining) [2023-08-29 09:20:52,236 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Thread1of1ForFork5Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 40 remaining) [2023-08-29 09:20:52,236 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Thread1of1ForFork5Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 40 remaining) [2023-08-29 09:20:52,236 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Thread1of1ForFork5Err4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 40 remaining) [2023-08-29 09:20:52,236 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Thread1of1ForFork5Err8INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 40 remaining) [2023-08-29 09:20:52,236 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (8 of 40 remaining) [2023-08-29 09:20:52,236 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (7 of 40 remaining) [2023-08-29 09:20:52,236 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (6 of 40 remaining) [2023-08-29 09:20:52,237 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (5 of 40 remaining) [2023-08-29 09:20:52,237 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (4 of 40 remaining) [2023-08-29 09:20:52,237 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (3 of 40 remaining) [2023-08-29 09:20:52,237 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (2 of 40 remaining) [2023-08-29 09:20:52,237 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (1 of 40 remaining) [2023-08-29 09:20:52,237 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (0 of 40 remaining) [2023-08-29 09:20:52,237 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-29 09:20:52,237 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 09:20:52,240 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-29 09:20:52,241 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-29 09:20:52,242 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 09:20:52 BasicIcfg [2023-08-29 09:20:52,242 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-29 09:20:52,243 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-29 09:20:52,243 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-29 09:20:52,243 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-29 09:20:52,243 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 09:20:21" (3/4) ... [2023-08-29 09:20:52,245 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-29 09:20:52,248 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread0 [2023-08-29 09:20:52,248 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2023-08-29 09:20:52,248 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2023-08-29 09:20:52,248 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2023-08-29 09:20:52,250 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2023-08-29 09:20:52,250 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-08-29 09:20:52,250 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-29 09:20:52,251 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-29 09:20:52,268 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-29 09:20:52,269 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-29 09:20:52,269 INFO L158 Benchmark]: Toolchain (without parser) took 31679.07ms. Allocated memory was 67.1MB in the beginning and 4.5GB in the end (delta: 4.4GB). Free memory was 31.0MB in the beginning and 2.8GB in the end (delta: -2.8GB). Peak memory consumption was 1.6GB. Max. memory is 16.1GB. [2023-08-29 09:20:52,269 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 67.1MB. Free memory was 44.5MB in the beginning and 44.4MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 09:20:52,270 INFO L158 Benchmark]: CACSL2BoogieTranslator took 570.66ms. Allocated memory was 67.1MB in the beginning and 88.1MB in the end (delta: 21.0MB). Free memory was 30.9MB in the beginning and 50.0MB in the end (delta: -19.2MB). Peak memory consumption was 7.3MB. Max. memory is 16.1GB. [2023-08-29 09:20:52,270 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.21ms. Allocated memory is still 88.1MB. Free memory was 50.0MB in the beginning and 47.5MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 09:20:52,270 INFO L158 Benchmark]: Boogie Preprocessor took 30.52ms. Allocated memory is still 88.1MB. Free memory was 47.5MB in the beginning and 45.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 09:20:52,270 INFO L158 Benchmark]: RCFGBuilder took 530.19ms. Allocated memory is still 88.1MB. Free memory was 45.4MB in the beginning and 47.2MB in the end (delta: -1.8MB). Peak memory consumption was 12.7MB. Max. memory is 16.1GB. [2023-08-29 09:20:52,270 INFO L158 Benchmark]: TraceAbstraction took 30463.21ms. Allocated memory was 88.1MB in the beginning and 4.5GB in the end (delta: 4.4GB). Free memory was 46.5MB in the beginning and 2.8GB in the end (delta: -2.8GB). Peak memory consumption was 1.6GB. Max. memory is 16.1GB. [2023-08-29 09:20:52,271 INFO L158 Benchmark]: Witness Printer took 25.95ms. Allocated memory is still 4.5GB. Free memory was 2.8GB in the beginning and 2.8GB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-29 09:20:52,272 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 67.1MB. Free memory was 44.5MB in the beginning and 44.4MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 570.66ms. Allocated memory was 67.1MB in the beginning and 88.1MB in the end (delta: 21.0MB). Free memory was 30.9MB in the beginning and 50.0MB in the end (delta: -19.2MB). Peak memory consumption was 7.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.21ms. Allocated memory is still 88.1MB. Free memory was 50.0MB in the beginning and 47.5MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.52ms. Allocated memory is still 88.1MB. Free memory was 47.5MB in the beginning and 45.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 530.19ms. Allocated memory is still 88.1MB. Free memory was 45.4MB in the beginning and 47.2MB in the end (delta: -1.8MB). Peak memory consumption was 12.7MB. Max. memory is 16.1GB. * TraceAbstraction took 30463.21ms. Allocated memory was 88.1MB in the beginning and 4.5GB in the end (delta: 4.4GB). Free memory was 46.5MB in the beginning and 2.8GB in the end (delta: -2.8GB). Peak memory consumption was 1.6GB. Max. memory is 16.1GB. * Witness Printer took 25.95ms. Allocated memory is still 4.5GB. Free memory was 2.8GB in the beginning and 2.8GB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.4s, 188 PlacesBefore, 102 PlacesAfterwards, 174 TransitionsBefore, 88 TransitionsAfterwards, 4608 CoEnabledTransitionPairs, 5 FixpointIterations, 29 TrivialSequentialCompositions, 71 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 100 TotalNumberOfCompositions, 20329 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 7019, independent: 6477, independent conditional: 0, independent unconditional: 6477, dependent: 542, dependent conditional: 0, dependent unconditional: 542, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1813, independent: 1728, independent conditional: 0, independent unconditional: 1728, dependent: 85, dependent conditional: 0, dependent unconditional: 85, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 7019, independent: 4749, independent conditional: 0, independent unconditional: 4749, dependent: 457, dependent conditional: 0, dependent unconditional: 457, unknown: 1813, unknown conditional: 0, unknown unconditional: 1813] , Statistics on independence cache: Total cache size (in pairs): 309, Positive cache size: 251, Positive conditional cache size: 0, Positive unconditional cache size: 251, Negative cache size: 58, Negative conditional cache size: 0, Negative unconditional cache size: 58, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 1148]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1153]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1154]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1155]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1156]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1127]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1133]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1133]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1140]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1140]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1163]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1164]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1164]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1164]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1164]: 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 11 procedures, 323 locations, 40 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: 30.3s, OverallIterations: 13, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 24.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5003 SdHoareTripleChecker+Valid, 7.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3341 mSDsluCounter, 1203 SdHoareTripleChecker+Invalid, 6.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1176 mSDsCounter, 2420 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 12979 IncrementalHoareTripleChecker+Invalid, 15399 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2420 mSolverCounterUnsat, 27 mSDtfsCounter, 12979 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 116 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7929occurred in iteration=10, InterpolantAutomatonStates: 89, 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: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 3.3s InterpolantComputationTime, 384 NumberOfCodeBlocks, 384 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 371 ConstructedInterpolants, 0 QuantifiedInterpolants, 2510 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 13 PerfectInterpolantSequences, 0/0 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 15 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-29 09:20:52,286 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE