./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/goblint-regression/09-regions_03-list2_rc.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/goblint-regression/09-regions_03-list2_rc.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8fabb88ade703ed67646ecdb87c815e5ac82dedce1b2b43f0f0859c8695912d8 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-29 17:44:47,826 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 17:44:47,827 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 17:44:47,848 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 17:44:47,848 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 17:44:47,849 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 17:44:47,850 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 17:44:47,851 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 17:44:47,852 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 17:44:47,853 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 17:44:47,853 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 17:44:47,854 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 17:44:47,854 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 17:44:47,855 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 17:44:47,855 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 17:44:47,856 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 17:44:47,857 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 17:44:47,857 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 17:44:47,858 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 17:44:47,859 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 17:44:47,866 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 17:44:47,871 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 17:44:47,872 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 17:44:47,874 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 17:44:47,876 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 17:44:47,880 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 17:44:47,880 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 17:44:47,881 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 17:44:47,881 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 17:44:47,882 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 17:44:47,883 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 17:44:47,884 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 17:44:47,884 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 17:44:47,885 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 17:44:47,886 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 17:44:47,886 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 17:44:47,887 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 17:44:47,887 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 17:44:47,887 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 17:44:47,888 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 17:44:47,888 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 17:44:47,889 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-29 17:44:47,908 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 17:44:47,908 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 17:44:47,909 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 17:44:47,909 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 17:44:47,910 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 17:44:47,910 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 17:44:47,911 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 17:44:47,911 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 17:44:47,911 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 17:44:47,911 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 17:44:47,912 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 17:44:47,912 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 17:44:47,912 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 17:44:47,912 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 17:44:47,912 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 17:44:47,912 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-29 17:44:47,912 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 17:44:47,913 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-29 17:44:47,913 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-29 17:44:47,913 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 17:44:47,913 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-29 17:44:47,913 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 17:44:47,913 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-29 17:44:47,914 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 17:44:47,914 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 17:44:47,914 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 17:44:47,914 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 17:44:47,914 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 17:44:47,914 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 17:44:47,914 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-29 17:44:47,915 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 17:44:47,915 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 17:44:47,915 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 17:44:47,915 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-29 17:44:47,915 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 17:44:47,915 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 17:44:47,916 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 17:44:47,916 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8fabb88ade703ed67646ecdb87c815e5ac82dedce1b2b43f0f0859c8695912d8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-29 17:44:48,149 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 17:44:48,164 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 17:44:48,165 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 17:44:48,166 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 17:44:48,166 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 17:44:48,167 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/09-regions_03-list2_rc.i [2023-08-29 17:44:49,115 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 17:44:49,370 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 17:44:49,371 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/09-regions_03-list2_rc.i [2023-08-29 17:44:49,390 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/459be7fb5/755a7a817d1740cf8ea873e9a9c0ff02/FLAG42329b714 [2023-08-29 17:44:49,403 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/459be7fb5/755a7a817d1740cf8ea873e9a9c0ff02 [2023-08-29 17:44:49,405 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 17:44:49,406 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 17:44:49,408 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 17:44:49,408 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 17:44:49,410 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 17:44:49,410 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 05:44:49" (1/1) ... [2023-08-29 17:44:49,412 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f3dfee3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:44:49, skipping insertion in model container [2023-08-29 17:44:49,413 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 05:44:49" (1/1) ... [2023-08-29 17:44:49,417 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 17:44:49,460 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 17:44:49,829 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 17:44:49,836 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 17:44:49,918 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 17:44:49,979 INFO L208 MainTranslator]: Completed translation [2023-08-29 17:44:49,979 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:44:49 WrapperNode [2023-08-29 17:44:49,979 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 17:44:49,980 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 17:44:49,981 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 17:44:49,981 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 17:44:49,985 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:44:49" (1/1) ... [2023-08-29 17:44:50,010 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:44:49" (1/1) ... [2023-08-29 17:44:50,045 INFO L138 Inliner]: procedures = 368, calls = 43, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 174 [2023-08-29 17:44:50,046 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 17:44:50,046 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 17:44:50,046 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 17:44:50,046 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 17:44:50,052 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:44:49" (1/1) ... [2023-08-29 17:44:50,053 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:44:49" (1/1) ... [2023-08-29 17:44:50,070 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:44:49" (1/1) ... [2023-08-29 17:44:50,070 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:44:49" (1/1) ... [2023-08-29 17:44:50,081 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:44:49" (1/1) ... [2023-08-29 17:44:50,082 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:44:49" (1/1) ... [2023-08-29 17:44:50,084 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:44:49" (1/1) ... [2023-08-29 17:44:50,085 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:44:49" (1/1) ... [2023-08-29 17:44:50,087 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 17:44:50,088 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 17:44:50,088 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 17:44:50,088 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 17:44:50,088 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:44:49" (1/1) ... [2023-08-29 17:44:50,092 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 17:44:50,100 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 17:44:50,117 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-29 17:44:50,132 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-29 17:44:50,149 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 17:44:50,149 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-08-29 17:44:50,149 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 17:44:50,149 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-29 17:44:50,149 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-29 17:44:50,150 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-29 17:44:50,150 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-29 17:44:50,150 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-29 17:44:50,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-08-29 17:44:50,150 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-29 17:44:50,151 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-29 17:44:50,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-29 17:44:50,151 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 17:44:50,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 17:44:50,152 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-29 17:44:50,292 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 17:44:50,293 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 17:44:50,681 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 17:44:50,689 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 17:44:50,690 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-29 17:44:50,692 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 05:44:50 BoogieIcfgContainer [2023-08-29 17:44:50,692 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 17:44:50,694 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 17:44:50,694 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 17:44:50,696 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 17:44:50,696 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 05:44:49" (1/3) ... [2023-08-29 17:44:50,697 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d5c1538 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 05:44:50, skipping insertion in model container [2023-08-29 17:44:50,697 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:44:49" (2/3) ... [2023-08-29 17:44:50,697 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d5c1538 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 05:44:50, skipping insertion in model container [2023-08-29 17:44:50,698 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 05:44:50" (3/3) ... [2023-08-29 17:44:50,699 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_03-list2_rc.i [2023-08-29 17:44:50,703 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-29 17:44:50,709 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 17:44:50,709 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 28 error locations. [2023-08-29 17:44:50,709 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 17:44:50,773 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-29 17:44:50,805 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 271 places, 267 transitions, 539 flow [2023-08-29 17:44:50,888 INFO L130 PetriNetUnfolder]: 0/266 cut-off events. [2023-08-29 17:44:50,888 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 17:44:50,891 INFO L83 FinitePrefix]: Finished finitePrefix Result has 270 conditions, 266 events. 0/266 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 153 event pairs, 0 based on Foata normal form. 0/238 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-08-29 17:44:50,891 INFO L82 GeneralOperation]: Start removeDead. Operand has 271 places, 267 transitions, 539 flow [2023-08-29 17:44:50,897 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 270 places, 266 transitions, 535 flow [2023-08-29 17:44:50,900 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 17:44:50,913 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 270 places, 266 transitions, 535 flow [2023-08-29 17:44:50,915 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 270 places, 266 transitions, 535 flow [2023-08-29 17:44:50,915 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 270 places, 266 transitions, 535 flow [2023-08-29 17:44:50,959 INFO L130 PetriNetUnfolder]: 0/266 cut-off events. [2023-08-29 17:44:50,960 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 17:44:50,960 INFO L83 FinitePrefix]: Finished finitePrefix Result has 270 conditions, 266 events. 0/266 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 153 event pairs, 0 based on Foata normal form. 0/238 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-08-29 17:44:50,964 INFO L119 LiptonReduction]: Number of co-enabled transitions 7590 [2023-08-29 17:45:09,057 WARN L222 SmtUtils]: Spent 7.93s on a formula simplification. DAG size of input: 141 DAG size of output: 139 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 17:45:21,285 WARN L222 SmtUtils]: Spent 8.92s on a formula simplification. DAG size of input: 141 DAG size of output: 139 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 17:45:39,931 WARN L222 SmtUtils]: Spent 6.92s on a formula simplification that was a NOOP. DAG size: 175 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 17:45:46,568 WARN L222 SmtUtils]: Spent 6.63s on a formula simplification that was a NOOP. DAG size: 169 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 17:45:52,933 WARN L222 SmtUtils]: Spent 6.36s on a formula simplification that was a NOOP. DAG size: 175 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 17:45:59,710 WARN L222 SmtUtils]: Spent 6.77s on a formula simplification that was a NOOP. DAG size: 169 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 17:46:22,417 WARN L222 SmtUtils]: Spent 22.69s on a formula simplification that was a NOOP. DAG size: 281 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 17:46:34,166 WARN L222 SmtUtils]: Spent 8.79s on a formula simplification that was a NOOP. DAG size: 281 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 17:46:50,778 WARN L222 SmtUtils]: Spent 16.61s on a formula simplification that was a NOOP. DAG size: 253 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 17:47:40,583 WARN L222 SmtUtils]: Spent 49.78s on a formula simplification that was a NOOP. DAG size: 363 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 17:48:29,732 WARN L222 SmtUtils]: Spent 49.14s on a formula simplification that was a NOOP. DAG size: 329 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 17:50:16,249 WARN L222 SmtUtils]: Spent 1.78m on a formula simplification that was a NOOP. DAG size: 363 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 17:50:28,620 WARN L222 SmtUtils]: Spent 12.37s on a formula simplification that was a NOOP. DAG size: 329 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 17:50:28,629 INFO L134 LiptonReduction]: Checked pairs total: 81588 [2023-08-29 17:50:28,629 INFO L136 LiptonReduction]: Total number of compositions: 227 [2023-08-29 17:50:28,642 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 17:50:28,645 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;@5e92b5f6, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 17:50:28,648 INFO L358 AbstractCegarLoop]: Starting to check reachability of 37 error locations. [2023-08-29 17:50:28,649 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-29 17:50:28,649 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 17:50:28,649 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:50:28,650 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-29 17:50:28,650 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-29 17:50:28,653 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:50:28,653 INFO L85 PathProgramCache]: Analyzing trace with hash 852, now seen corresponding path program 1 times [2023-08-29 17:50:28,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:50:28,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964888565] [2023-08-29 17:50:28,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:50:28,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:50:28,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:50:28,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:50:28,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:50:28,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964888565] [2023-08-29 17:50:28,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [964888565] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:50:28,727 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:50:28,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-29 17:50:28,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897301358] [2023-08-29 17:50:28,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:50:28,733 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-29 17:50:28,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:50:28,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-29 17:50:28,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-29 17:50:28,753 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 266 out of 494 [2023-08-29 17:50:28,755 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 102 transitions, 207 flow. Second operand has 2 states, 2 states have (on average 266.5) internal successors, (533), 2 states have internal predecessors, (533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:50:28,755 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:50:28,755 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 266 of 494 [2023-08-29 17:50:28,755 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:50:29,119 INFO L130 PetriNetUnfolder]: 140/714 cut-off events. [2023-08-29 17:50:29,119 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 17:50:29,123 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1025 conditions, 714 events. 140/714 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 4052 event pairs, 140 based on Foata normal form. 0/664 useless extension candidates. Maximal degree in co-relation 1016. Up to 307 conditions per place. [2023-08-29 17:50:29,125 INFO L137 encePairwiseOnDemand]: 480/494 looper letters, 26 selfloop transitions, 0 changer transitions 0/88 dead transitions. [2023-08-29 17:50:29,126 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 88 transitions, 231 flow [2023-08-29 17:50:29,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-29 17:50:29,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-29 17:50:29,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 572 transitions. [2023-08-29 17:50:29,140 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5789473684210527 [2023-08-29 17:50:29,141 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 572 transitions. [2023-08-29 17:50:29,141 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 572 transitions. [2023-08-29 17:50:29,143 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:50:29,144 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 572 transitions. [2023-08-29 17:50:29,148 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 286.0) internal successors, (572), 2 states have internal predecessors, (572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:50:29,152 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 494.0) internal successors, (1482), 3 states have internal predecessors, (1482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:50:29,153 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 494.0) internal successors, (1482), 3 states have internal predecessors, (1482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:50:29,156 INFO L175 Difference]: Start difference. First operand has 106 places, 102 transitions, 207 flow. Second operand 2 states and 572 transitions. [2023-08-29 17:50:29,157 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 88 transitions, 231 flow [2023-08-29 17:50:29,158 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 88 transitions, 230 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 17:50:29,168 INFO L231 Difference]: Finished difference. Result has 92 places, 88 transitions, 178 flow [2023-08-29 17:50:29,169 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=494, PETRI_DIFFERENCE_MINUEND_FLOW=178, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=178, PETRI_PLACES=92, PETRI_TRANSITIONS=88} [2023-08-29 17:50:29,172 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, -14 predicate places. [2023-08-29 17:50:29,173 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 88 transitions, 178 flow [2023-08-29 17:50:29,173 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 266.5) internal successors, (533), 2 states have internal predecessors, (533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:50:29,174 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:50:29,174 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-29 17:50:29,177 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-29 17:50:29,177 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-29 17:50:29,182 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:50:29,182 INFO L85 PathProgramCache]: Analyzing trace with hash 816673469, now seen corresponding path program 1 times [2023-08-29 17:50:29,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:50:29,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248374457] [2023-08-29 17:50:29,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:50:29,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:50:29,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:50:29,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:50:29,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:50:29,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248374457] [2023-08-29 17:50:29,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248374457] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:50:29,444 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:50:29,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 17:50:29,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561343307] [2023-08-29 17:50:29,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:50:29,445 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 17:50:29,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:50:29,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 17:50:29,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 17:50:29,463 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 253 out of 494 [2023-08-29 17:50:29,465 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 88 transitions, 178 flow. Second operand has 3 states, 3 states have (on average 254.66666666666666) internal successors, (764), 3 states have internal predecessors, (764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:50:29,465 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:50:29,465 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 253 of 494 [2023-08-29 17:50:29,465 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:50:30,064 INFO L130 PetriNetUnfolder]: 154/764 cut-off events. [2023-08-29 17:50:30,064 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 17:50:30,065 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1104 conditions, 764 events. 154/764 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 4378 event pairs, 154 based on Foata normal form. 0/716 useless extension candidates. Maximal degree in co-relation 1101. Up to 335 conditions per place. [2023-08-29 17:50:30,067 INFO L137 encePairwiseOnDemand]: 491/494 looper letters, 26 selfloop transitions, 1 changer transitions 0/86 dead transitions. [2023-08-29 17:50:30,067 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 86 transitions, 228 flow [2023-08-29 17:50:30,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 17:50:30,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 17:50:30,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 788 transitions. [2023-08-29 17:50:30,069 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5317139001349528 [2023-08-29 17:50:30,069 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 788 transitions. [2023-08-29 17:50:30,069 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 788 transitions. [2023-08-29 17:50:30,069 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:50:30,069 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 788 transitions. [2023-08-29 17:50:30,071 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 262.6666666666667) internal successors, (788), 3 states have internal predecessors, (788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:50:30,073 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 494.0) internal successors, (1976), 4 states have internal predecessors, (1976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:50:30,073 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 494.0) internal successors, (1976), 4 states have internal predecessors, (1976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:50:30,073 INFO L175 Difference]: Start difference. First operand has 92 places, 88 transitions, 178 flow. Second operand 3 states and 788 transitions. [2023-08-29 17:50:30,074 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 86 transitions, 228 flow [2023-08-29 17:50:30,074 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 86 transitions, 228 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 17:50:30,075 INFO L231 Difference]: Finished difference. Result has 92 places, 86 transitions, 176 flow [2023-08-29 17:50:30,075 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=494, PETRI_DIFFERENCE_MINUEND_FLOW=174, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=176, PETRI_PLACES=92, PETRI_TRANSITIONS=86} [2023-08-29 17:50:30,076 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, -14 predicate places. [2023-08-29 17:50:30,076 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 86 transitions, 176 flow [2023-08-29 17:50:30,077 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 254.66666666666666) internal successors, (764), 3 states have internal predecessors, (764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:50:30,077 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:50:30,077 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:50:30,077 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-29 17:50:30,077 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-29 17:50:30,077 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:50:30,078 INFO L85 PathProgramCache]: Analyzing trace with hash -1139645560, now seen corresponding path program 1 times [2023-08-29 17:50:30,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:50:30,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174320189] [2023-08-29 17:50:30,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:50:30,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:50:30,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:50:30,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:50:30,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:50:30,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174320189] [2023-08-29 17:50:30,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174320189] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:50:30,594 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:50:30,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 17:50:30,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233909957] [2023-08-29 17:50:30,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:50:30,594 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 17:50:30,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:50:30,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 17:50:30,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 17:50:31,009 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 211 out of 494 [2023-08-29 17:50:31,010 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 86 transitions, 176 flow. Second operand has 6 states, 6 states have (on average 212.66666666666666) internal successors, (1276), 6 states have internal predecessors, (1276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:50:31,010 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:50:31,010 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 211 of 494 [2023-08-29 17:50:31,010 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:50:31,819 INFO L130 PetriNetUnfolder]: 503/1856 cut-off events. [2023-08-29 17:50:31,819 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 17:50:31,821 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2937 conditions, 1856 events. 503/1856 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 12560 event pairs, 61 based on Foata normal form. 0/1747 useless extension candidates. Maximal degree in co-relation 2933. Up to 538 conditions per place. [2023-08-29 17:50:31,824 INFO L137 encePairwiseOnDemand]: 475/494 looper letters, 110 selfloop transitions, 38 changer transitions 0/192 dead transitions. [2023-08-29 17:50:31,824 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 192 transitions, 684 flow [2023-08-29 17:50:31,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 17:50:31,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 17:50:31,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1416 transitions. [2023-08-29 17:50:31,827 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4777327935222672 [2023-08-29 17:50:31,827 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1416 transitions. [2023-08-29 17:50:31,827 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1416 transitions. [2023-08-29 17:50:31,828 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:50:31,828 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1416 transitions. [2023-08-29 17:50:31,830 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 236.0) internal successors, (1416), 6 states have internal predecessors, (1416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:50:31,833 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 494.0) internal successors, (3458), 7 states have internal predecessors, (3458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:50:31,834 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 494.0) internal successors, (3458), 7 states have internal predecessors, (3458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:50:31,834 INFO L175 Difference]: Start difference. First operand has 92 places, 86 transitions, 176 flow. Second operand 6 states and 1416 transitions. [2023-08-29 17:50:31,834 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 192 transitions, 684 flow [2023-08-29 17:50:31,835 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 192 transitions, 683 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 17:50:31,837 INFO L231 Difference]: Finished difference. Result has 100 places, 122 transitions, 433 flow [2023-08-29 17:50:31,837 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=494, PETRI_DIFFERENCE_MINUEND_FLOW=173, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=433, PETRI_PLACES=100, PETRI_TRANSITIONS=122} [2023-08-29 17:50:31,838 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, -6 predicate places. [2023-08-29 17:50:31,838 INFO L495 AbstractCegarLoop]: Abstraction has has 100 places, 122 transitions, 433 flow [2023-08-29 17:50:31,839 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 212.66666666666666) internal successors, (1276), 6 states have internal predecessors, (1276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:50:31,839 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:50:31,839 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:50:31,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-29 17:50:31,839 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-29 17:50:31,839 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:50:31,839 INFO L85 PathProgramCache]: Analyzing trace with hash 2128750545, now seen corresponding path program 1 times [2023-08-29 17:50:31,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:50:31,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400317988] [2023-08-29 17:50:31,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:50:31,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:50:31,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:50:32,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:50:32,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:50:32,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400317988] [2023-08-29 17:50:32,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1400317988] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:50:32,202 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:50:32,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 17:50:32,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331784083] [2023-08-29 17:50:32,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:50:32,202 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 17:50:32,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:50:32,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 17:50:32,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 17:50:32,576 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 217 out of 494 [2023-08-29 17:50:32,577 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 122 transitions, 433 flow. Second operand has 6 states, 6 states have (on average 218.83333333333334) internal successors, (1313), 6 states have internal predecessors, (1313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:50:32,577 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:50:32,577 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 217 of 494 [2023-08-29 17:50:32,577 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:50:33,740 INFO L130 PetriNetUnfolder]: 413/1679 cut-off events. [2023-08-29 17:50:33,741 INFO L131 PetriNetUnfolder]: For 306/319 co-relation queries the response was YES. [2023-08-29 17:50:33,743 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3089 conditions, 1679 events. 413/1679 cut-off events. For 306/319 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 11772 event pairs, 231 based on Foata normal form. 3/1554 useless extension candidates. Maximal degree in co-relation 3081. Up to 758 conditions per place. [2023-08-29 17:50:33,746 INFO L137 encePairwiseOnDemand]: 488/494 looper letters, 101 selfloop transitions, 5 changer transitions 0/161 dead transitions. [2023-08-29 17:50:33,746 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 161 transitions, 731 flow [2023-08-29 17:50:33,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 17:50:33,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 17:50:33,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1380 transitions. [2023-08-29 17:50:33,749 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46558704453441296 [2023-08-29 17:50:33,749 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1380 transitions. [2023-08-29 17:50:33,749 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1380 transitions. [2023-08-29 17:50:33,749 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:50:33,750 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1380 transitions. [2023-08-29 17:50:33,752 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 230.0) internal successors, (1380), 6 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:50:33,755 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 494.0) internal successors, (3458), 7 states have internal predecessors, (3458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:50:33,756 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 494.0) internal successors, (3458), 7 states have internal predecessors, (3458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:50:33,756 INFO L175 Difference]: Start difference. First operand has 100 places, 122 transitions, 433 flow. Second operand 6 states and 1380 transitions. [2023-08-29 17:50:33,756 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 161 transitions, 731 flow [2023-08-29 17:50:33,760 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 161 transitions, 731 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 17:50:33,762 INFO L231 Difference]: Finished difference. Result has 104 places, 121 transitions, 441 flow [2023-08-29 17:50:33,762 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=494, PETRI_DIFFERENCE_MINUEND_FLOW=431, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=441, PETRI_PLACES=104, PETRI_TRANSITIONS=121} [2023-08-29 17:50:33,763 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, -2 predicate places. [2023-08-29 17:50:33,764 INFO L495 AbstractCegarLoop]: Abstraction has has 104 places, 121 transitions, 441 flow [2023-08-29 17:50:33,764 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 218.83333333333334) internal successors, (1313), 6 states have internal predecessors, (1313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:50:33,764 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:50:33,765 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:50:33,765 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-29 17:50:33,765 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-29 17:50:33,766 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:50:33,766 INFO L85 PathProgramCache]: Analyzing trace with hash -1720171372, now seen corresponding path program 1 times [2023-08-29 17:50:33,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:50:33,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353130423] [2023-08-29 17:50:33,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:50:33,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:50:33,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:50:34,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:50:34,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:50:34,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [353130423] [2023-08-29 17:50:34,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [353130423] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:50:34,104 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:50:34,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 17:50:34,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170494221] [2023-08-29 17:50:34,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:50:34,104 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 17:50:34,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:50:34,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 17:50:34,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 17:50:34,445 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 210 out of 494 [2023-08-29 17:50:34,446 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 121 transitions, 441 flow. Second operand has 6 states, 6 states have (on average 211.83333333333334) internal successors, (1271), 6 states have internal predecessors, (1271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:50:34,446 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:50:34,446 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 210 of 494 [2023-08-29 17:50:34,446 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:50:35,524 INFO L130 PetriNetUnfolder]: 816/2682 cut-off events. [2023-08-29 17:50:35,524 INFO L131 PetriNetUnfolder]: For 660/672 co-relation queries the response was YES. [2023-08-29 17:50:35,528 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5284 conditions, 2682 events. 816/2682 cut-off events. For 660/672 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 19394 event pairs, 147 based on Foata normal form. 3/2516 useless extension candidates. Maximal degree in co-relation 5275. Up to 1024 conditions per place. [2023-08-29 17:50:35,533 INFO L137 encePairwiseOnDemand]: 473/494 looper letters, 119 selfloop transitions, 71 changer transitions 0/240 dead transitions. [2023-08-29 17:50:35,533 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 240 transitions, 1251 flow [2023-08-29 17:50:35,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 17:50:35,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 17:50:35,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1395 transitions. [2023-08-29 17:50:35,536 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4706477732793522 [2023-08-29 17:50:35,536 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1395 transitions. [2023-08-29 17:50:35,537 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1395 transitions. [2023-08-29 17:50:35,537 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:50:35,538 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1395 transitions. [2023-08-29 17:50:35,540 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 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 17:50:35,543 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 494.0) internal successors, (3458), 7 states have internal predecessors, (3458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:50:35,543 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 494.0) internal successors, (3458), 7 states have internal predecessors, (3458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:50:35,543 INFO L175 Difference]: Start difference. First operand has 104 places, 121 transitions, 441 flow. Second operand 6 states and 1395 transitions. [2023-08-29 17:50:35,543 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 240 transitions, 1251 flow [2023-08-29 17:50:35,547 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 240 transitions, 1233 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-29 17:50:35,550 INFO L231 Difference]: Finished difference. Result has 109 places, 190 transitions, 1089 flow [2023-08-29 17:50:35,551 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=494, PETRI_DIFFERENCE_MINUEND_FLOW=431, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1089, PETRI_PLACES=109, PETRI_TRANSITIONS=190} [2023-08-29 17:50:35,552 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 3 predicate places. [2023-08-29 17:50:35,552 INFO L495 AbstractCegarLoop]: Abstraction has has 109 places, 190 transitions, 1089 flow [2023-08-29 17:50:35,553 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 211.83333333333334) internal successors, (1271), 6 states have internal predecessors, (1271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:50:35,553 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:50:35,553 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 17:50:35,553 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-29 17:50:35,553 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-29 17:50:35,554 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:50:35,554 INFO L85 PathProgramCache]: Analyzing trace with hash 485984485, now seen corresponding path program 1 times [2023-08-29 17:50:35,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:50:35,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054192640] [2023-08-29 17:50:35,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:50:35,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:50:35,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:50:35,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:50:35,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:50:35,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054192640] [2023-08-29 17:50:35,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054192640] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:50:35,926 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:50:35,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 17:50:35,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075021902] [2023-08-29 17:50:35,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:50:35,927 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 17:50:35,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:50:35,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 17:50:35,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 17:50:36,185 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 187 out of 494 [2023-08-29 17:50:36,185 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 190 transitions, 1089 flow. Second operand has 6 states, 6 states have (on average 190.5) internal successors, (1143), 6 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 17:50:36,185 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:50:36,186 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 187 of 494 [2023-08-29 17:50:36,186 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:50:37,541 INFO L130 PetriNetUnfolder]: 1833/4483 cut-off events. [2023-08-29 17:50:37,542 INFO L131 PetriNetUnfolder]: For 3004/3050 co-relation queries the response was YES. [2023-08-29 17:50:37,548 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11967 conditions, 4483 events. 1833/4483 cut-off events. For 3004/3050 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 30400 event pairs, 1032 based on Foata normal form. 0/4196 useless extension candidates. Maximal degree in co-relation 11954. Up to 3644 conditions per place. [2023-08-29 17:50:37,559 INFO L137 encePairwiseOnDemand]: 472/494 looper letters, 205 selfloop transitions, 79 changer transitions 0/304 dead transitions. [2023-08-29 17:50:37,559 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 304 transitions, 2109 flow [2023-08-29 17:50:37,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 17:50:37,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 17:50:37,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1295 transitions. [2023-08-29 17:50:37,562 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43690958164642374 [2023-08-29 17:50:37,562 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1295 transitions. [2023-08-29 17:50:37,562 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1295 transitions. [2023-08-29 17:50:37,562 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:50:37,563 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1295 transitions. [2023-08-29 17:50:37,564 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 215.83333333333334) internal successors, (1295), 6 states have internal predecessors, (1295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:50:37,568 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 494.0) internal successors, (3458), 7 states have internal predecessors, (3458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:50:37,569 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 494.0) internal successors, (3458), 7 states have internal predecessors, (3458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:50:37,569 INFO L175 Difference]: Start difference. First operand has 109 places, 190 transitions, 1089 flow. Second operand 6 states and 1295 transitions. [2023-08-29 17:50:37,569 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 304 transitions, 2109 flow [2023-08-29 17:50:37,576 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 304 transitions, 2109 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 17:50:37,579 INFO L231 Difference]: Finished difference. Result has 118 places, 264 transitions, 1705 flow [2023-08-29 17:50:37,579 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=494, PETRI_DIFFERENCE_MINUEND_FLOW=1089, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=190, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=159, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1705, PETRI_PLACES=118, PETRI_TRANSITIONS=264} [2023-08-29 17:50:37,581 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 12 predicate places. [2023-08-29 17:50:37,581 INFO L495 AbstractCegarLoop]: Abstraction has has 118 places, 264 transitions, 1705 flow [2023-08-29 17:50:37,581 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 190.5) internal successors, (1143), 6 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 17:50:37,581 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:50:37,581 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 17:50:37,581 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-29 17:50:37,582 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-29 17:50:37,582 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:50:37,582 INFO L85 PathProgramCache]: Analyzing trace with hash -196459402, now seen corresponding path program 1 times [2023-08-29 17:50:37,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:50:37,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026978252] [2023-08-29 17:50:37,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:50:37,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:50:37,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:50:37,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:50:37,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:50:37,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026978252] [2023-08-29 17:50:37,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026978252] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:50:37,670 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:50:37,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 17:50:37,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274350179] [2023-08-29 17:50:37,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:50:37,671 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 17:50:37,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:50:37,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 17:50:37,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 17:50:37,681 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 253 out of 494 [2023-08-29 17:50:37,682 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 264 transitions, 1705 flow. Second operand has 3 states, 3 states have (on average 256.0) internal successors, (768), 3 states have internal predecessors, (768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:50:37,682 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:50:37,682 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 253 of 494 [2023-08-29 17:50:37,682 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:50:38,206 INFO L130 PetriNetUnfolder]: 729/2736 cut-off events. [2023-08-29 17:50:38,206 INFO L131 PetriNetUnfolder]: For 2230/2297 co-relation queries the response was YES. [2023-08-29 17:50:38,212 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7165 conditions, 2736 events. 729/2736 cut-off events. For 2230/2297 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 20753 event pairs, 268 based on Foata normal form. 8/2615 useless extension candidates. Maximal degree in co-relation 7147. Up to 1113 conditions per place. [2023-08-29 17:50:38,219 INFO L137 encePairwiseOnDemand]: 491/494 looper letters, 49 selfloop transitions, 1 changer transitions 0/262 dead transitions. [2023-08-29 17:50:38,219 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 262 transitions, 1801 flow [2023-08-29 17:50:38,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 17:50:38,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 17:50:38,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 790 transitions. [2023-08-29 17:50:38,221 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5330634278002699 [2023-08-29 17:50:38,221 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 790 transitions. [2023-08-29 17:50:38,221 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 790 transitions. [2023-08-29 17:50:38,222 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:50:38,222 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 790 transitions. [2023-08-29 17:50:38,223 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 263.3333333333333) internal successors, (790), 3 states have internal predecessors, (790), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:50:38,224 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 494.0) internal successors, (1976), 4 states have internal predecessors, (1976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:50:38,225 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 494.0) internal successors, (1976), 4 states have internal predecessors, (1976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:50:38,225 INFO L175 Difference]: Start difference. First operand has 118 places, 264 transitions, 1705 flow. Second operand 3 states and 790 transitions. [2023-08-29 17:50:38,225 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 262 transitions, 1801 flow [2023-08-29 17:50:38,235 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 262 transitions, 1729 flow, removed 36 selfloop flow, removed 0 redundant places. [2023-08-29 17:50:38,238 INFO L231 Difference]: Finished difference. Result has 118 places, 262 transitions, 1631 flow [2023-08-29 17:50:38,238 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=494, PETRI_DIFFERENCE_MINUEND_FLOW=1629, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=262, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=261, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1631, PETRI_PLACES=118, PETRI_TRANSITIONS=262} [2023-08-29 17:50:38,239 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 12 predicate places. [2023-08-29 17:50:38,239 INFO L495 AbstractCegarLoop]: Abstraction has has 118 places, 262 transitions, 1631 flow [2023-08-29 17:50:38,240 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 256.0) internal successors, (768), 3 states have internal predecessors, (768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:50:38,240 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:50:38,240 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 17:50:38,240 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-29 17:50:38,240 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-29 17:50:38,240 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:50:38,241 INFO L85 PathProgramCache]: Analyzing trace with hash 1183061363, now seen corresponding path program 1 times [2023-08-29 17:50:38,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:50:38,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287951932] [2023-08-29 17:50:38,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:50:38,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:50:38,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:50:38,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:50:38,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:50:38,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287951932] [2023-08-29 17:50:38,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1287951932] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:50:38,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:50:38,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-29 17:50:38,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875080302] [2023-08-29 17:50:38,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:50:38,380 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 17:50:38,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:50:38,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 17:50:38,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 17:50:38,394 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 259 out of 494 [2023-08-29 17:50:38,395 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 262 transitions, 1631 flow. Second operand has 3 states, 3 states have (on average 262.3333333333333) internal successors, (787), 3 states have internal predecessors, (787), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:50:38,395 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:50:38,395 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 259 of 494 [2023-08-29 17:50:38,395 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:50:39,055 INFO L130 PetriNetUnfolder]: 411/1628 cut-off events. [2023-08-29 17:50:39,056 INFO L131 PetriNetUnfolder]: For 1309/1330 co-relation queries the response was YES. [2023-08-29 17:50:39,059 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4253 conditions, 1628 events. 411/1628 cut-off events. For 1309/1330 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 11407 event pairs, 101 based on Foata normal form. 14/1581 useless extension candidates. Maximal degree in co-relation 4234. Up to 411 conditions per place. [2023-08-29 17:50:39,067 INFO L137 encePairwiseOnDemand]: 488/494 looper letters, 77 selfloop transitions, 6 changer transitions 0/236 dead transitions. [2023-08-29 17:50:39,067 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 236 transitions, 1511 flow [2023-08-29 17:50:39,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 17:50:39,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 17:50:39,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 831 transitions. [2023-08-29 17:50:39,070 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5607287449392713 [2023-08-29 17:50:39,070 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 831 transitions. [2023-08-29 17:50:39,070 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 831 transitions. [2023-08-29 17:50:39,070 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:50:39,071 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 831 transitions. [2023-08-29 17:50:39,072 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 277.0) internal successors, (831), 3 states have internal predecessors, (831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:50:39,073 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 494.0) internal successors, (1976), 4 states have internal predecessors, (1976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:50:39,074 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 494.0) internal successors, (1976), 4 states have internal predecessors, (1976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:50:39,074 INFO L175 Difference]: Start difference. First operand has 118 places, 262 transitions, 1631 flow. Second operand 3 states and 831 transitions. [2023-08-29 17:50:39,074 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 236 transitions, 1511 flow [2023-08-29 17:50:39,079 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 236 transitions, 1452 flow, removed 29 selfloop flow, removed 1 redundant places. [2023-08-29 17:50:39,080 INFO L231 Difference]: Finished difference. Result has 120 places, 206 transitions, 1170 flow [2023-08-29 17:50:39,081 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=494, PETRI_DIFFERENCE_MINUEND_FLOW=1136, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=202, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=196, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1170, PETRI_PLACES=120, PETRI_TRANSITIONS=206} [2023-08-29 17:50:39,082 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 14 predicate places. [2023-08-29 17:50:39,083 INFO L495 AbstractCegarLoop]: Abstraction has has 120 places, 206 transitions, 1170 flow [2023-08-29 17:50:39,084 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 262.3333333333333) internal successors, (787), 3 states have internal predecessors, (787), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:50:39,084 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:50:39,084 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 17:50:39,084 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-29 17:50:39,085 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-29 17:50:39,085 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:50:39,085 INFO L85 PathProgramCache]: Analyzing trace with hash 393010943, now seen corresponding path program 1 times [2023-08-29 17:50:39,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:50:39,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307077861] [2023-08-29 17:50:39,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:50:39,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:50:39,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:50:39,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:50:39,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:50:39,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307077861] [2023-08-29 17:50:39,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [307077861] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:50:39,441 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:50:39,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 17:50:39,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759611835] [2023-08-29 17:50:39,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:50:39,442 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 17:50:39,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:50:39,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 17:50:39,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 17:50:39,795 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 211 out of 494 [2023-08-29 17:50:39,796 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 206 transitions, 1170 flow. Second operand has 6 states, 6 states have (on average 213.16666666666666) internal successors, (1279), 6 states have internal predecessors, (1279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:50:39,796 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:50:39,797 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 211 of 494 [2023-08-29 17:50:39,797 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:50:41,226 INFO L130 PetriNetUnfolder]: 828/2326 cut-off events. [2023-08-29 17:50:41,226 INFO L131 PetriNetUnfolder]: For 2272/2315 co-relation queries the response was YES. [2023-08-29 17:50:41,231 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6829 conditions, 2326 events. 828/2326 cut-off events. For 2272/2315 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 15824 event pairs, 101 based on Foata normal form. 66/2330 useless extension candidates. Maximal degree in co-relation 6809. Up to 860 conditions per place. [2023-08-29 17:50:41,236 INFO L137 encePairwiseOnDemand]: 475/494 looper letters, 205 selfloop transitions, 121 changer transitions 9/405 dead transitions. [2023-08-29 17:50:41,236 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 405 transitions, 2903 flow [2023-08-29 17:50:41,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 17:50:41,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 17:50:41,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1442 transitions. [2023-08-29 17:50:41,239 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4865047233468286 [2023-08-29 17:50:41,239 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1442 transitions. [2023-08-29 17:50:41,239 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1442 transitions. [2023-08-29 17:50:41,239 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:50:41,239 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1442 transitions. [2023-08-29 17:50:41,241 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 240.33333333333334) internal successors, (1442), 6 states have internal predecessors, (1442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:50:41,244 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 494.0) internal successors, (3458), 7 states have internal predecessors, (3458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:50:41,244 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 494.0) internal successors, (3458), 7 states have internal predecessors, (3458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:50:41,245 INFO L175 Difference]: Start difference. First operand has 120 places, 206 transitions, 1170 flow. Second operand 6 states and 1442 transitions. [2023-08-29 17:50:41,245 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 405 transitions, 2903 flow [2023-08-29 17:50:41,252 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 405 transitions, 2888 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 17:50:41,257 INFO L231 Difference]: Finished difference. Result has 128 places, 305 transitions, 2513 flow [2023-08-29 17:50:41,257 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=494, PETRI_DIFFERENCE_MINUEND_FLOW=1162, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=205, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2513, PETRI_PLACES=128, PETRI_TRANSITIONS=305} [2023-08-29 17:50:41,258 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 22 predicate places. [2023-08-29 17:50:41,258 INFO L495 AbstractCegarLoop]: Abstraction has has 128 places, 305 transitions, 2513 flow [2023-08-29 17:50:41,258 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 213.16666666666666) internal successors, (1279), 6 states have internal predecessors, (1279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:50:41,258 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:50:41,258 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:50:41,259 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-29 17:50:41,259 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-29 17:50:41,259 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:50:41,259 INFO L85 PathProgramCache]: Analyzing trace with hash -765051543, now seen corresponding path program 1 times [2023-08-29 17:50:41,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:50:41,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704158102] [2023-08-29 17:50:41,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:50:41,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:50:41,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:50:41,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:50:41,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:50:41,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704158102] [2023-08-29 17:50:41,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [704158102] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:50:41,612 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:50:41,612 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 17:50:41,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652380569] [2023-08-29 17:50:41,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:50:41,613 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 17:50:41,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:50:41,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 17:50:41,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 17:50:41,942 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 217 out of 494 [2023-08-29 17:50:41,943 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 305 transitions, 2513 flow. Second operand has 6 states, 6 states have (on average 220.16666666666666) internal successors, (1321), 6 states have internal predecessors, (1321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:50:41,943 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:50:41,943 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 217 of 494 [2023-08-29 17:50:41,943 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:50:42,710 INFO L130 PetriNetUnfolder]: 686/2073 cut-off events. [2023-08-29 17:50:42,710 INFO L131 PetriNetUnfolder]: For 4451/4525 co-relation queries the response was YES. [2023-08-29 17:50:42,716 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7072 conditions, 2073 events. 686/2073 cut-off events. For 4451/4525 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 14110 event pairs, 151 based on Foata normal form. 26/2052 useless extension candidates. Maximal degree in co-relation 7048. Up to 1038 conditions per place. [2023-08-29 17:50:42,720 INFO L137 encePairwiseOnDemand]: 488/494 looper letters, 238 selfloop transitions, 17 changer transitions 0/352 dead transitions. [2023-08-29 17:50:42,720 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 352 transitions, 3205 flow [2023-08-29 17:50:42,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 17:50:42,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 17:50:42,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1379 transitions. [2023-08-29 17:50:42,723 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46524966261808365 [2023-08-29 17:50:42,723 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1379 transitions. [2023-08-29 17:50:42,723 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1379 transitions. [2023-08-29 17:50:42,724 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:50:42,724 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1379 transitions. [2023-08-29 17:50:42,726 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 229.83333333333334) internal successors, (1379), 6 states have internal predecessors, (1379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:50:42,729 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 494.0) internal successors, (3458), 7 states have internal predecessors, (3458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:50:42,729 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 494.0) internal successors, (3458), 7 states have internal predecessors, (3458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:50:42,729 INFO L175 Difference]: Start difference. First operand has 128 places, 305 transitions, 2513 flow. Second operand 6 states and 1379 transitions. [2023-08-29 17:50:42,729 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 352 transitions, 3205 flow [2023-08-29 17:50:42,739 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 352 transitions, 3187 flow, removed 9 selfloop flow, removed 0 redundant places. [2023-08-29 17:50:42,743 INFO L231 Difference]: Finished difference. Result has 132 places, 304 transitions, 2527 flow [2023-08-29 17:50:42,743 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=494, PETRI_DIFFERENCE_MINUEND_FLOW=2493, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=304, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=287, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2527, PETRI_PLACES=132, PETRI_TRANSITIONS=304} [2023-08-29 17:50:42,743 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 26 predicate places. [2023-08-29 17:50:42,744 INFO L495 AbstractCegarLoop]: Abstraction has has 132 places, 304 transitions, 2527 flow [2023-08-29 17:50:42,744 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 220.16666666666666) internal successors, (1321), 6 states have internal predecessors, (1321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:50:42,744 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:50:42,744 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] [2023-08-29 17:50:42,744 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-29 17:50:42,745 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-29 17:50:42,745 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:50:42,745 INFO L85 PathProgramCache]: Analyzing trace with hash 1182460824, now seen corresponding path program 1 times [2023-08-29 17:50:42,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:50:42,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350733874] [2023-08-29 17:50:42,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:50:42,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:50:42,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:50:43,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:50:43,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:50:43,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350733874] [2023-08-29 17:50:43,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [350733874] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:50:43,155 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:50:43,155 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 17:50:43,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712084506] [2023-08-29 17:50:43,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:50:43,155 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 17:50:43,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:50:43,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 17:50:43,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 17:50:43,360 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 187 out of 494 [2023-08-29 17:50:43,362 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 304 transitions, 2527 flow. Second operand has 6 states, 6 states have (on average 193.0) internal successors, (1158), 6 states have internal predecessors, (1158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:50:43,362 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:50:43,362 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 187 of 494 [2023-08-29 17:50:43,362 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:50:44,310 INFO L130 PetriNetUnfolder]: 1492/3480 cut-off events. [2023-08-29 17:50:44,310 INFO L131 PetriNetUnfolder]: For 6050/6104 co-relation queries the response was YES. [2023-08-29 17:50:44,317 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12569 conditions, 3480 events. 1492/3480 cut-off events. For 6050/6104 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 22246 event pairs, 681 based on Foata normal form. 0/3382 useless extension candidates. Maximal degree in co-relation 12544. Up to 3018 conditions per place. [2023-08-29 17:50:44,323 INFO L137 encePairwiseOnDemand]: 472/494 looper letters, 303 selfloop transitions, 90 changer transitions 12/421 dead transitions. [2023-08-29 17:50:44,323 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 421 transitions, 3971 flow [2023-08-29 17:50:44,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 17:50:44,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 17:50:44,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1295 transitions. [2023-08-29 17:50:44,327 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43690958164642374 [2023-08-29 17:50:44,327 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1295 transitions. [2023-08-29 17:50:44,327 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1295 transitions. [2023-08-29 17:50:44,328 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:50:44,328 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1295 transitions. [2023-08-29 17:50:44,330 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 215.83333333333334) internal successors, (1295), 6 states have internal predecessors, (1295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:50:44,333 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 494.0) internal successors, (3458), 7 states have internal predecessors, (3458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:50:44,333 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 494.0) internal successors, (3458), 7 states have internal predecessors, (3458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:50:44,333 INFO L175 Difference]: Start difference. First operand has 132 places, 304 transitions, 2527 flow. Second operand 6 states and 1295 transitions. [2023-08-29 17:50:44,333 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 421 transitions, 3971 flow [2023-08-29 17:50:44,347 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 421 transitions, 3937 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-29 17:50:44,351 INFO L231 Difference]: Finished difference. Result has 136 places, 377 transitions, 3269 flow [2023-08-29 17:50:44,351 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=494, PETRI_DIFFERENCE_MINUEND_FLOW=2493, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=304, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=262, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3269, PETRI_PLACES=136, PETRI_TRANSITIONS=377} [2023-08-29 17:50:44,352 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 30 predicate places. [2023-08-29 17:50:44,352 INFO L495 AbstractCegarLoop]: Abstraction has has 136 places, 377 transitions, 3269 flow [2023-08-29 17:50:44,353 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 193.0) internal successors, (1158), 6 states have internal predecessors, (1158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:50:44,353 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:50:44,353 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] [2023-08-29 17:50:44,353 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-29 17:50:44,353 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-29 17:50:44,353 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:50:44,353 INFO L85 PathProgramCache]: Analyzing trace with hash -989259866, now seen corresponding path program 1 times [2023-08-29 17:50:44,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:50:44,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79996713] [2023-08-29 17:50:44,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:50:44,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:50:44,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:50:45,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:50:45,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:50:45,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79996713] [2023-08-29 17:50:45,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [79996713] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:50:45,192 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:50:45,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-29 17:50:45,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698585282] [2023-08-29 17:50:45,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:50:45,194 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-29 17:50:45,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:50:45,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-29 17:50:45,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2023-08-29 17:50:45,681 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 494 [2023-08-29 17:50:45,682 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 377 transitions, 3269 flow. Second operand has 9 states, 9 states have (on average 176.0) internal successors, (1584), 9 states have internal predecessors, (1584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:50:45,682 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:50:45,682 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 494 [2023-08-29 17:50:45,682 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:50:47,334 INFO L130 PetriNetUnfolder]: 1395/3330 cut-off events. [2023-08-29 17:50:47,334 INFO L131 PetriNetUnfolder]: For 7110/7189 co-relation queries the response was YES. [2023-08-29 17:50:47,342 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12847 conditions, 3330 events. 1395/3330 cut-off events. For 7110/7189 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 21809 event pairs, 407 based on Foata normal form. 0/3291 useless extension candidates. Maximal degree in co-relation 12818. Up to 2260 conditions per place. [2023-08-29 17:50:47,347 INFO L137 encePairwiseOnDemand]: 481/494 looper letters, 402 selfloop transitions, 57 changer transitions 14/489 dead transitions. [2023-08-29 17:50:47,347 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 489 transitions, 4921 flow [2023-08-29 17:50:47,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-29 17:50:47,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-29 17:50:47,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1721 transitions. [2023-08-29 17:50:47,351 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.387089518668466 [2023-08-29 17:50:47,351 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1721 transitions. [2023-08-29 17:50:47,351 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1721 transitions. [2023-08-29 17:50:47,352 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:50:47,352 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1721 transitions. [2023-08-29 17:50:47,354 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 191.22222222222223) internal successors, (1721), 9 states have internal predecessors, (1721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:50:47,357 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 494.0) internal successors, (4940), 10 states have internal predecessors, (4940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:50:47,358 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 494.0) internal successors, (4940), 10 states have internal predecessors, (4940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:50:47,358 INFO L175 Difference]: Start difference. First operand has 136 places, 377 transitions, 3269 flow. Second operand 9 states and 1721 transitions. [2023-08-29 17:50:47,358 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 489 transitions, 4921 flow [2023-08-29 17:50:47,385 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 489 transitions, 4761 flow, removed 80 selfloop flow, removed 0 redundant places. [2023-08-29 17:50:47,389 INFO L231 Difference]: Finished difference. Result has 148 places, 385 transitions, 3381 flow [2023-08-29 17:50:47,390 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=494, PETRI_DIFFERENCE_MINUEND_FLOW=3109, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=377, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=324, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=3381, PETRI_PLACES=148, PETRI_TRANSITIONS=385} [2023-08-29 17:50:47,390 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 42 predicate places. [2023-08-29 17:50:47,391 INFO L495 AbstractCegarLoop]: Abstraction has has 148 places, 385 transitions, 3381 flow [2023-08-29 17:50:47,391 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 176.0) internal successors, (1584), 9 states have internal predecessors, (1584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:50:47,391 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:50:47,391 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] [2023-08-29 17:50:47,392 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-29 17:50:47,392 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-29 17:50:47,392 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:50:47,392 INFO L85 PathProgramCache]: Analyzing trace with hash -1150444369, now seen corresponding path program 1 times [2023-08-29 17:50:47,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:50:47,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638593695] [2023-08-29 17:50:47,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:50:47,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:50:47,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:50:48,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:50:48,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:50:48,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638593695] [2023-08-29 17:50:48,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [638593695] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:50:48,388 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:50:48,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 17:50:48,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610735489] [2023-08-29 17:50:48,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:50:48,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 17:50:48,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:50:48,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 17:50:48,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2023-08-29 17:50:49,351 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 197 out of 494 [2023-08-29 17:50:49,353 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 385 transitions, 3381 flow. Second operand has 10 states, 10 states have (on average 198.9) internal successors, (1989), 10 states have internal predecessors, (1989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:50:49,353 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:50:49,353 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 197 of 494 [2023-08-29 17:50:49,353 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:50:51,069 INFO L130 PetriNetUnfolder]: 1084/3042 cut-off events. [2023-08-29 17:50:51,069 INFO L131 PetriNetUnfolder]: For 9190/9290 co-relation queries the response was YES. [2023-08-29 17:50:51,077 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12242 conditions, 3042 events. 1084/3042 cut-off events. For 9190/9290 co-relation queries the response was YES. Maximal size of possible extension queue 110. Compared 21954 event pairs, 167 based on Foata normal form. 20/3027 useless extension candidates. Maximal degree in co-relation 12208. Up to 1360 conditions per place. [2023-08-29 17:50:51,084 INFO L137 encePairwiseOnDemand]: 475/494 looper letters, 303 selfloop transitions, 90 changer transitions 9/522 dead transitions. [2023-08-29 17:50:51,084 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 522 transitions, 5199 flow [2023-08-29 17:50:51,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-29 17:50:51,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-29 17:50:51,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 2092 transitions. [2023-08-29 17:50:51,088 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4234817813765182 [2023-08-29 17:50:51,088 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 2092 transitions. [2023-08-29 17:50:51,088 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 2092 transitions. [2023-08-29 17:50:51,089 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:50:51,089 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 2092 transitions. [2023-08-29 17:50:51,092 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 209.2) internal successors, (2092), 10 states have internal predecessors, (2092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:50:51,096 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 494.0) internal successors, (5434), 11 states have internal predecessors, (5434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:50:51,096 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 494.0) internal successors, (5434), 11 states have internal predecessors, (5434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:50:51,096 INFO L175 Difference]: Start difference. First operand has 148 places, 385 transitions, 3381 flow. Second operand 10 states and 2092 transitions. [2023-08-29 17:50:51,096 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 157 places, 522 transitions, 5199 flow [2023-08-29 17:50:51,124 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 522 transitions, 5173 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-29 17:50:51,129 INFO L231 Difference]: Finished difference. Result has 162 places, 436 transitions, 4364 flow [2023-08-29 17:50:51,130 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=494, PETRI_DIFFERENCE_MINUEND_FLOW=3373, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=385, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=39, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=300, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=4364, PETRI_PLACES=162, PETRI_TRANSITIONS=436} [2023-08-29 17:50:51,130 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 56 predicate places. [2023-08-29 17:50:51,130 INFO L495 AbstractCegarLoop]: Abstraction has has 162 places, 436 transitions, 4364 flow [2023-08-29 17:50:51,131 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 198.9) internal successors, (1989), 10 states have internal predecessors, (1989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:50:51,131 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:50:51,131 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] [2023-08-29 17:50:51,131 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-29 17:50:51,131 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-29 17:50:51,132 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:50:51,132 INFO L85 PathProgramCache]: Analyzing trace with hash 539406891, now seen corresponding path program 2 times [2023-08-29 17:50:51,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:50:51,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819347197] [2023-08-29 17:50:51,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:50:51,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:50:51,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:50:51,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:50:51,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:50:51,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819347197] [2023-08-29 17:50:51,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [819347197] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:50:51,987 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:50:51,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-29 17:50:51,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731658538] [2023-08-29 17:50:51,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:50:51,987 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-29 17:50:51,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:50:51,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-29 17:50:51,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2023-08-29 17:50:52,961 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 494 [2023-08-29 17:50:52,962 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 436 transitions, 4364 flow. Second operand has 12 states, 12 states have (on average 191.66666666666666) internal successors, (2300), 12 states have internal predecessors, (2300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:50:52,962 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:50:52,962 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 494 [2023-08-29 17:50:52,962 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:50:54,939 INFO L130 PetriNetUnfolder]: 1163/3243 cut-off events. [2023-08-29 17:50:54,939 INFO L131 PetriNetUnfolder]: For 13128/13241 co-relation queries the response was YES. [2023-08-29 17:50:54,949 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13965 conditions, 3243 events. 1163/3243 cut-off events. For 13128/13241 co-relation queries the response was YES. Maximal size of possible extension queue 116. Compared 23557 event pairs, 206 based on Foata normal form. 32/3239 useless extension candidates. Maximal degree in co-relation 13924. Up to 1032 conditions per place. [2023-08-29 17:50:54,955 INFO L137 encePairwiseOnDemand]: 475/494 looper letters, 344 selfloop transitions, 131 changer transitions 10/604 dead transitions. [2023-08-29 17:50:54,955 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 604 transitions, 6614 flow [2023-08-29 17:50:54,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-08-29 17:50:54,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2023-08-29 17:50:54,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 3767 transitions. [2023-08-29 17:50:54,962 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40134242488813127 [2023-08-29 17:50:54,962 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 3767 transitions. [2023-08-29 17:50:54,963 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 3767 transitions. [2023-08-29 17:50:54,964 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:50:54,964 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 3767 transitions. [2023-08-29 17:50:54,968 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 198.26315789473685) internal successors, (3767), 19 states have internal predecessors, (3767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:50:54,974 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 494.0) internal successors, (9880), 20 states have internal predecessors, (9880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:50:54,975 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 494.0) internal successors, (9880), 20 states have internal predecessors, (9880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:50:54,975 INFO L175 Difference]: Start difference. First operand has 162 places, 436 transitions, 4364 flow. Second operand 19 states and 3767 transitions. [2023-08-29 17:50:54,975 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 180 places, 604 transitions, 6614 flow [2023-08-29 17:50:55,014 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 180 places, 604 transitions, 6592 flow, removed 11 selfloop flow, removed 0 redundant places. [2023-08-29 17:50:55,020 INFO L231 Difference]: Finished difference. Result has 195 places, 500 transitions, 5455 flow [2023-08-29 17:50:55,020 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=494, PETRI_DIFFERENCE_MINUEND_FLOW=4356, PETRI_DIFFERENCE_MINUEND_PLACES=162, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=436, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=70, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=331, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=5455, PETRI_PLACES=195, PETRI_TRANSITIONS=500} [2023-08-29 17:50:55,020 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 89 predicate places. [2023-08-29 17:50:55,021 INFO L495 AbstractCegarLoop]: Abstraction has has 195 places, 500 transitions, 5455 flow [2023-08-29 17:50:55,021 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 191.66666666666666) internal successors, (2300), 12 states have internal predecessors, (2300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:50:55,021 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:50:55,021 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] [2023-08-29 17:50:55,021 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-29 17:50:55,021 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-29 17:50:55,022 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:50:55,022 INFO L85 PathProgramCache]: Analyzing trace with hash 918316159, now seen corresponding path program 3 times [2023-08-29 17:50:55,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:50:55,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491812299] [2023-08-29 17:50:55,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:50:55,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:50:55,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:50:55,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:50:55,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:50:55,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491812299] [2023-08-29 17:50:55,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [491812299] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:50:55,983 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:50:55,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 17:50:55,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576416896] [2023-08-29 17:50:55,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:50:55,983 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 17:50:55,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:50:55,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 17:50:55,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-08-29 17:50:56,851 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 197 out of 494 [2023-08-29 17:50:56,852 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 195 places, 500 transitions, 5455 flow. Second operand has 10 states, 10 states have (on average 198.9) internal successors, (1989), 10 states have internal predecessors, (1989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:50:56,852 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:50:56,852 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 197 of 494 [2023-08-29 17:50:56,852 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:50:58,855 INFO L130 PetriNetUnfolder]: 1326/3670 cut-off events. [2023-08-29 17:50:58,856 INFO L131 PetriNetUnfolder]: For 20534/20694 co-relation queries the response was YES. [2023-08-29 17:50:58,870 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17420 conditions, 3670 events. 1326/3670 cut-off events. For 20534/20694 co-relation queries the response was YES. Maximal size of possible extension queue 143. Compared 27786 event pairs, 184 based on Foata normal form. 56/3685 useless extension candidates. Maximal degree in co-relation 17364. Up to 1466 conditions per place. [2023-08-29 17:50:58,879 INFO L137 encePairwiseOnDemand]: 475/494 looper letters, 381 selfloop transitions, 127 changer transitions 9/638 dead transitions. [2023-08-29 17:50:58,879 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 206 places, 638 transitions, 7783 flow [2023-08-29 17:50:58,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-29 17:50:58,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-29 17:50:58,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 2495 transitions. [2023-08-29 17:50:58,883 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4208839406207827 [2023-08-29 17:50:58,883 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 2495 transitions. [2023-08-29 17:50:58,883 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 2495 transitions. [2023-08-29 17:50:58,884 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:50:58,884 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 2495 transitions. [2023-08-29 17:50:58,888 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 207.91666666666666) internal successors, (2495), 12 states have internal predecessors, (2495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:50:58,891 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 494.0) internal successors, (6422), 13 states have internal predecessors, (6422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:50:58,892 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 494.0) internal successors, (6422), 13 states have internal predecessors, (6422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:50:58,892 INFO L175 Difference]: Start difference. First operand has 195 places, 500 transitions, 5455 flow. Second operand 12 states and 2495 transitions. [2023-08-29 17:50:58,892 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 206 places, 638 transitions, 7783 flow [2023-08-29 17:50:58,960 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 206 places, 638 transitions, 7743 flow, removed 20 selfloop flow, removed 0 redundant places. [2023-08-29 17:50:58,966 INFO L231 Difference]: Finished difference. Result has 211 places, 548 transitions, 6678 flow [2023-08-29 17:50:58,967 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=494, PETRI_DIFFERENCE_MINUEND_FLOW=5417, PETRI_DIFFERENCE_MINUEND_PLACES=195, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=500, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=80, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=378, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=6678, PETRI_PLACES=211, PETRI_TRANSITIONS=548} [2023-08-29 17:50:58,967 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 105 predicate places. [2023-08-29 17:50:58,967 INFO L495 AbstractCegarLoop]: Abstraction has has 211 places, 548 transitions, 6678 flow [2023-08-29 17:50:58,968 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 198.9) internal successors, (1989), 10 states have internal predecessors, (1989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:50:58,968 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:50:58,968 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] [2023-08-29 17:50:58,968 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-08-29 17:50:58,968 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-29 17:50:58,969 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:50:58,969 INFO L85 PathProgramCache]: Analyzing trace with hash 1321596577, now seen corresponding path program 4 times [2023-08-29 17:50:58,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:50:58,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667431371] [2023-08-29 17:50:58,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:50:58,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:50:59,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:50:59,779 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 17:50:59,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:50:59,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667431371] [2023-08-29 17:50:59,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1667431371] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:50:59,781 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:50:59,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 17:50:59,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952982638] [2023-08-29 17:50:59,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:50:59,782 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 17:50:59,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:50:59,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 17:50:59,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-08-29 17:51:00,677 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 197 out of 494 [2023-08-29 17:51:00,678 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 211 places, 548 transitions, 6678 flow. Second operand has 10 states, 10 states have (on average 198.9) internal successors, (1989), 10 states have internal predecessors, (1989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:51:00,678 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:51:00,678 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 197 of 494 [2023-08-29 17:51:00,678 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:51:02,784 INFO L130 PetriNetUnfolder]: 1508/4174 cut-off events. [2023-08-29 17:51:02,784 INFO L131 PetriNetUnfolder]: For 30156/30336 co-relation queries the response was YES. [2023-08-29 17:51:02,802 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20929 conditions, 4174 events. 1508/4174 cut-off events. For 30156/30336 co-relation queries the response was YES. Maximal size of possible extension queue 170. Compared 32774 event pairs, 216 based on Foata normal form. 47/4174 useless extension candidates. Maximal degree in co-relation 20868. Up to 1417 conditions per place. [2023-08-29 17:51:02,811 INFO L137 encePairwiseOnDemand]: 475/494 looper letters, 423 selfloop transitions, 171 changer transitions 9/724 dead transitions. [2023-08-29 17:51:02,811 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 224 places, 724 transitions, 9958 flow [2023-08-29 17:51:02,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-29 17:51:02,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-29 17:51:02,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2904 transitions. [2023-08-29 17:51:02,815 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4198958935801041 [2023-08-29 17:51:02,815 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2904 transitions. [2023-08-29 17:51:02,815 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2904 transitions. [2023-08-29 17:51:02,816 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:51:02,816 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2904 transitions. [2023-08-29 17:51:02,818 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 207.42857142857142) internal successors, (2904), 14 states have internal predecessors, (2904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:51:02,823 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 494.0) internal successors, (7410), 15 states have internal predecessors, (7410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:51:02,823 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 494.0) internal successors, (7410), 15 states have internal predecessors, (7410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:51:02,823 INFO L175 Difference]: Start difference. First operand has 211 places, 548 transitions, 6678 flow. Second operand 14 states and 2904 transitions. [2023-08-29 17:51:02,823 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 224 places, 724 transitions, 9958 flow [2023-08-29 17:51:02,915 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 220 places, 724 transitions, 9904 flow, removed 10 selfloop flow, removed 4 redundant places. [2023-08-29 17:51:02,923 INFO L231 Difference]: Finished difference. Result has 230 places, 613 transitions, 8467 flow [2023-08-29 17:51:02,923 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=494, PETRI_DIFFERENCE_MINUEND_FLOW=6634, PETRI_DIFFERENCE_MINUEND_PLACES=207, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=548, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=107, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=387, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=8467, PETRI_PLACES=230, PETRI_TRANSITIONS=613} [2023-08-29 17:51:02,924 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 124 predicate places. [2023-08-29 17:51:02,924 INFO L495 AbstractCegarLoop]: Abstraction has has 230 places, 613 transitions, 8467 flow [2023-08-29 17:51:02,924 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 198.9) internal successors, (1989), 10 states have internal predecessors, (1989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:51:02,924 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:51:02,924 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] [2023-08-29 17:51:02,924 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-08-29 17:51:02,925 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-29 17:51:02,925 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:51:02,925 INFO L85 PathProgramCache]: Analyzing trace with hash 1738382545, now seen corresponding path program 5 times [2023-08-29 17:51:02,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:51:02,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122903639] [2023-08-29 17:51:02,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:51:02,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:51:02,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:51:03,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:51:03,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:51:03,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122903639] [2023-08-29 17:51:03,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1122903639] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:51:03,760 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:51:03,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 17:51:03,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071580044] [2023-08-29 17:51:03,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:51:03,761 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 17:51:03,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:51:03,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 17:51:03,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-08-29 17:51:04,640 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 197 out of 494 [2023-08-29 17:51:04,656 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 230 places, 613 transitions, 8467 flow. Second operand has 10 states, 10 states have (on average 198.9) internal successors, (1989), 10 states have internal predecessors, (1989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:51:04,656 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:51:04,657 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 197 of 494 [2023-08-29 17:51:04,657 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:51:06,646 INFO L130 PetriNetUnfolder]: 1652/4567 cut-off events. [2023-08-29 17:51:06,646 INFO L131 PetriNetUnfolder]: For 43040/43276 co-relation queries the response was YES. [2023-08-29 17:51:06,671 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24228 conditions, 4567 events. 1652/4567 cut-off events. For 43040/43276 co-relation queries the response was YES. Maximal size of possible extension queue 197. Compared 37112 event pairs, 226 based on Foata normal form. 69/4586 useless extension candidates. Maximal degree in co-relation 24157. Up to 1709 conditions per place. [2023-08-29 17:51:06,682 INFO L137 encePairwiseOnDemand]: 475/494 looper letters, 433 selfloop transitions, 197 changer transitions 9/760 dead transitions. [2023-08-29 17:51:06,682 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 242 places, 760 transitions, 11554 flow [2023-08-29 17:51:06,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-08-29 17:51:06,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-08-29 17:51:06,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2700 transitions. [2023-08-29 17:51:06,687 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4204297726564933 [2023-08-29 17:51:06,687 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2700 transitions. [2023-08-29 17:51:06,687 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2700 transitions. [2023-08-29 17:51:06,687 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:51:06,687 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2700 transitions. [2023-08-29 17:51:06,690 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 207.69230769230768) internal successors, (2700), 13 states have internal predecessors, (2700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:51:06,693 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 494.0) internal successors, (6916), 14 states have internal predecessors, (6916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:51:06,693 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 494.0) internal successors, (6916), 14 states have internal predecessors, (6916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:51:06,693 INFO L175 Difference]: Start difference. First operand has 230 places, 613 transitions, 8467 flow. Second operand 13 states and 2700 transitions. [2023-08-29 17:51:06,693 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 242 places, 760 transitions, 11554 flow [2023-08-29 17:51:06,829 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 241 places, 760 transitions, 11470 flow, removed 40 selfloop flow, removed 1 redundant places. [2023-08-29 17:51:06,838 INFO L231 Difference]: Finished difference. Result has 249 places, 659 transitions, 10191 flow [2023-08-29 17:51:06,838 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=494, PETRI_DIFFERENCE_MINUEND_FLOW=8383, PETRI_DIFFERENCE_MINUEND_PLACES=229, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=613, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=152, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=420, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=10191, PETRI_PLACES=249, PETRI_TRANSITIONS=659} [2023-08-29 17:51:06,838 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 143 predicate places. [2023-08-29 17:51:06,839 INFO L495 AbstractCegarLoop]: Abstraction has has 249 places, 659 transitions, 10191 flow [2023-08-29 17:51:06,839 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 198.9) internal successors, (1989), 10 states have internal predecessors, (1989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:51:06,839 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:51:06,839 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] [2023-08-29 17:51:06,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-08-29 17:51:06,839 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-29 17:51:06,840 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:51:06,840 INFO L85 PathProgramCache]: Analyzing trace with hash -995187386, now seen corresponding path program 1 times [2023-08-29 17:51:06,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:51:06,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151682001] [2023-08-29 17:51:06,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:51:06,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:51:06,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:51:07,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:51:07,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:51:07,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151682001] [2023-08-29 17:51:07,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151682001] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:51:07,556 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:51:07,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 17:51:07,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454667660] [2023-08-29 17:51:07,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:51:07,556 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 17:51:07,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:51:07,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 17:51:07,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-08-29 17:51:08,307 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 197 out of 494 [2023-08-29 17:51:08,308 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 249 places, 659 transitions, 10191 flow. Second operand has 10 states, 10 states have (on average 199.3) internal successors, (1993), 10 states have internal predecessors, (1993), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:51:08,308 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:51:08,308 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 197 of 494 [2023-08-29 17:51:08,308 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:51:10,349 INFO L130 PetriNetUnfolder]: 1644/4497 cut-off events. [2023-08-29 17:51:10,349 INFO L131 PetriNetUnfolder]: For 53535/53775 co-relation queries the response was YES. [2023-08-29 17:51:10,373 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25125 conditions, 4497 events. 1644/4497 cut-off events. For 53535/53775 co-relation queries the response was YES. Maximal size of possible extension queue 196. Compared 36301 event pairs, 164 based on Foata normal form. 71/4525 useless extension candidates. Maximal degree in co-relation 25046. Up to 1110 conditions per place. [2023-08-29 17:51:10,382 INFO L137 encePairwiseOnDemand]: 476/494 looper letters, 406 selfloop transitions, 238 changer transitions 16/781 dead transitions. [2023-08-29 17:51:10,382 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 269 places, 781 transitions, 12310 flow [2023-08-29 17:51:10,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-08-29 17:51:10,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2023-08-29 17:51:10,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 4326 transitions. [2023-08-29 17:51:10,395 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41700404858299595 [2023-08-29 17:51:10,395 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 4326 transitions. [2023-08-29 17:51:10,396 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 4326 transitions. [2023-08-29 17:51:10,396 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:51:10,396 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 4326 transitions. [2023-08-29 17:51:10,400 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 206.0) internal successors, (4326), 21 states have internal predecessors, (4326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:51:10,404 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 494.0) internal successors, (10868), 22 states have internal predecessors, (10868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:51:10,405 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 494.0) internal successors, (10868), 22 states have internal predecessors, (10868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:51:10,405 INFO L175 Difference]: Start difference. First operand has 249 places, 659 transitions, 10191 flow. Second operand 21 states and 4326 transitions. [2023-08-29 17:51:10,405 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 269 places, 781 transitions, 12310 flow [2023-08-29 17:51:10,550 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 267 places, 781 transitions, 12217 flow, removed 41 selfloop flow, removed 2 redundant places. [2023-08-29 17:51:10,562 INFO L231 Difference]: Finished difference. Result has 272 places, 667 transitions, 10934 flow [2023-08-29 17:51:10,563 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=494, PETRI_DIFFERENCE_MINUEND_FLOW=10098, PETRI_DIFFERENCE_MINUEND_PLACES=247, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=659, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=230, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=421, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=10934, PETRI_PLACES=272, PETRI_TRANSITIONS=667} [2023-08-29 17:51:10,563 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 166 predicate places. [2023-08-29 17:51:10,563 INFO L495 AbstractCegarLoop]: Abstraction has has 272 places, 667 transitions, 10934 flow [2023-08-29 17:51:10,564 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 199.3) internal successors, (1993), 10 states have internal predecessors, (1993), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:51:10,564 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:51:10,564 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] [2023-08-29 17:51:10,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-08-29 17:51:10,564 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-29 17:51:10,564 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:51:10,565 INFO L85 PathProgramCache]: Analyzing trace with hash 1577471982, now seen corresponding path program 1 times [2023-08-29 17:51:10,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:51:10,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887070454] [2023-08-29 17:51:10,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:51:10,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:51:10,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:51:11,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:51:11,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:51:11,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887070454] [2023-08-29 17:51:11,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1887070454] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:51:11,695 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:51:11,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-29 17:51:11,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129456214] [2023-08-29 17:51:11,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:51:11,695 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-29 17:51:11,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:51:11,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-29 17:51:11,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2023-08-29 17:51:12,896 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 194 out of 494 [2023-08-29 17:51:12,897 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 272 places, 667 transitions, 10934 flow. Second operand has 12 states, 12 states have (on average 196.41666666666666) internal successors, (2357), 12 states have internal predecessors, (2357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:51:12,897 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:51:12,897 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 194 of 494 [2023-08-29 17:51:12,897 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:51:15,818 INFO L130 PetriNetUnfolder]: 1859/5399 cut-off events. [2023-08-29 17:51:15,818 INFO L131 PetriNetUnfolder]: For 80262/80543 co-relation queries the response was YES. [2023-08-29 17:51:15,845 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31298 conditions, 5399 events. 1859/5399 cut-off events. For 80262/80543 co-relation queries the response was YES. Maximal size of possible extension queue 202. Compared 45821 event pairs, 209 based on Foata normal form. 44/5362 useless extension candidates. Maximal degree in co-relation 31214. Up to 1343 conditions per place. [2023-08-29 17:51:15,855 INFO L137 encePairwiseOnDemand]: 472/494 looper letters, 499 selfloop transitions, 169 changer transitions 15/895 dead transitions. [2023-08-29 17:51:15,855 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 293 places, 895 transitions, 15552 flow [2023-08-29 17:51:15,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-08-29 17:51:15,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2023-08-29 17:51:15,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 4419 transitions. [2023-08-29 17:51:15,858 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40660655134339346 [2023-08-29 17:51:15,858 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 4419 transitions. [2023-08-29 17:51:15,858 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 4419 transitions. [2023-08-29 17:51:15,859 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:51:15,859 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 4419 transitions. [2023-08-29 17:51:15,862 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 200.86363636363637) internal successors, (4419), 22 states have internal predecessors, (4419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:51:15,866 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 494.0) internal successors, (11362), 23 states have internal predecessors, (11362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:51:15,867 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 494.0) internal successors, (11362), 23 states have internal predecessors, (11362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:51:15,867 INFO L175 Difference]: Start difference. First operand has 272 places, 667 transitions, 10934 flow. Second operand 22 states and 4419 transitions. [2023-08-29 17:51:15,867 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 293 places, 895 transitions, 15552 flow [2023-08-29 17:51:16,100 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 268 places, 895 transitions, 15122 flow, removed 58 selfloop flow, removed 25 redundant places. [2023-08-29 17:51:16,110 INFO L231 Difference]: Finished difference. Result has 272 places, 737 transitions, 12405 flow [2023-08-29 17:51:16,110 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=494, PETRI_DIFFERENCE_MINUEND_FLOW=10511, PETRI_DIFFERENCE_MINUEND_PLACES=247, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=667, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=103, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=508, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=12405, PETRI_PLACES=272, PETRI_TRANSITIONS=737} [2023-08-29 17:51:16,111 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 166 predicate places. [2023-08-29 17:51:16,111 INFO L495 AbstractCegarLoop]: Abstraction has has 272 places, 737 transitions, 12405 flow [2023-08-29 17:51:16,111 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 196.41666666666666) internal successors, (2357), 12 states have internal predecessors, (2357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:51:16,111 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:51:16,111 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] [2023-08-29 17:51:16,111 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-08-29 17:51:16,111 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-29 17:51:16,111 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:51:16,111 INFO L85 PathProgramCache]: Analyzing trace with hash -1097261804, now seen corresponding path program 2 times [2023-08-29 17:51:16,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:51:16,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331129057] [2023-08-29 17:51:16,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:51:16,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:51:16,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:51:17,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:51:17,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:51:17,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331129057] [2023-08-29 17:51:17,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331129057] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:51:17,081 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:51:17,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-29 17:51:17,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279134621] [2023-08-29 17:51:17,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:51:17,082 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-29 17:51:17,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:51:17,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-29 17:51:17,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-08-29 17:51:17,879 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 194 out of 494 [2023-08-29 17:51:17,880 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 272 places, 737 transitions, 12405 flow. Second operand has 11 states, 11 states have (on average 196.54545454545453) internal successors, (2162), 11 states have internal predecessors, (2162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:51:17,880 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:51:17,880 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 194 of 494 [2023-08-29 17:51:17,880 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:51:20,230 INFO L130 PetriNetUnfolder]: 2064/5966 cut-off events. [2023-08-29 17:51:20,230 INFO L131 PetriNetUnfolder]: For 88612/88926 co-relation queries the response was YES. [2023-08-29 17:51:20,260 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34626 conditions, 5966 events. 2064/5966 cut-off events. For 88612/88926 co-relation queries the response was YES. Maximal size of possible extension queue 206. Compared 51328 event pairs, 206 based on Foata normal form. 57/5939 useless extension candidates. Maximal degree in co-relation 34555. Up to 1501 conditions per place. [2023-08-29 17:51:20,272 INFO L137 encePairwiseOnDemand]: 479/494 looper letters, 550 selfloop transitions, 159 changer transitions 41/962 dead transitions. [2023-08-29 17:51:20,272 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 292 places, 962 transitions, 16420 flow [2023-08-29 17:51:20,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-08-29 17:51:20,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2023-08-29 17:51:20,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 4257 transitions. [2023-08-29 17:51:20,277 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4103528050896472 [2023-08-29 17:51:20,277 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 4257 transitions. [2023-08-29 17:51:20,277 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 4257 transitions. [2023-08-29 17:51:20,277 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:51:20,277 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 4257 transitions. [2023-08-29 17:51:20,280 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 202.71428571428572) internal successors, (4257), 21 states have internal predecessors, (4257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:51:20,284 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 494.0) internal successors, (10868), 22 states have internal predecessors, (10868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:51:20,285 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 494.0) internal successors, (10868), 22 states have internal predecessors, (10868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:51:20,285 INFO L175 Difference]: Start difference. First operand has 272 places, 737 transitions, 12405 flow. Second operand 21 states and 4257 transitions. [2023-08-29 17:51:20,285 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 292 places, 962 transitions, 16420 flow [2023-08-29 17:51:20,475 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 288 places, 962 transitions, 16125 flow, removed 1 selfloop flow, removed 4 redundant places. [2023-08-29 17:51:20,486 INFO L231 Difference]: Finished difference. Result has 300 places, 781 transitions, 12915 flow [2023-08-29 17:51:20,487 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=494, PETRI_DIFFERENCE_MINUEND_FLOW=12144, PETRI_DIFFERENCE_MINUEND_PLACES=268, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=737, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=117, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=595, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=12915, PETRI_PLACES=300, PETRI_TRANSITIONS=781} [2023-08-29 17:51:20,487 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 194 predicate places. [2023-08-29 17:51:20,487 INFO L495 AbstractCegarLoop]: Abstraction has has 300 places, 781 transitions, 12915 flow [2023-08-29 17:51:20,487 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 196.54545454545453) internal successors, (2162), 11 states have internal predecessors, (2162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:51:20,487 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:51:20,487 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] [2023-08-29 17:51:20,487 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-08-29 17:51:20,487 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-29 17:51:20,488 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:51:20,488 INFO L85 PathProgramCache]: Analyzing trace with hash 1184076250, now seen corresponding path program 3 times [2023-08-29 17:51:20,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:51:20,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222826909] [2023-08-29 17:51:20,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:51:20,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:51:20,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:51:22,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:51:22,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:51:22,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222826909] [2023-08-29 17:51:22,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1222826909] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:51:22,276 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:51:22,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-29 17:51:22,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120756246] [2023-08-29 17:51:22,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:51:22,277 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-29 17:51:22,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:51:22,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-29 17:51:22,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2023-08-29 17:51:23,933 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 194 out of 494 [2023-08-29 17:51:23,934 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 300 places, 781 transitions, 12915 flow. Second operand has 12 states, 12 states have (on average 196.41666666666666) internal successors, (2357), 12 states have internal predecessors, (2357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:51:23,934 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:51:23,934 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 194 of 494 [2023-08-29 17:51:23,934 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:51:27,671 INFO L130 PetriNetUnfolder]: 2434/6939 cut-off events. [2023-08-29 17:51:27,671 INFO L131 PetriNetUnfolder]: For 108652/109040 co-relation queries the response was YES. [2023-08-29 17:51:27,717 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41738 conditions, 6939 events. 2434/6939 cut-off events. For 108652/109040 co-relation queries the response was YES. Maximal size of possible extension queue 224. Compared 61297 event pairs, 265 based on Foata normal form. 71/6911 useless extension candidates. Maximal degree in co-relation 41656. Up to 1826 conditions per place. [2023-08-29 17:51:27,733 INFO L137 encePairwiseOnDemand]: 472/494 looper letters, 585 selfloop transitions, 194 changer transitions 16/1007 dead transitions. [2023-08-29 17:51:27,733 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 323 places, 1007 transitions, 18056 flow [2023-08-29 17:51:27,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-08-29 17:51:27,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2023-08-29 17:51:27,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 4816 transitions. [2023-08-29 17:51:27,737 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40620782726045884 [2023-08-29 17:51:27,737 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 4816 transitions. [2023-08-29 17:51:27,737 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 4816 transitions. [2023-08-29 17:51:27,738 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:51:27,738 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 4816 transitions. [2023-08-29 17:51:27,741 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 200.66666666666666) internal successors, (4816), 24 states have internal predecessors, (4816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:51:27,746 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 494.0) internal successors, (12350), 25 states have internal predecessors, (12350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:51:27,746 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 494.0) internal successors, (12350), 25 states have internal predecessors, (12350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:51:27,747 INFO L175 Difference]: Start difference. First operand has 300 places, 781 transitions, 12915 flow. Second operand 24 states and 4816 transitions. [2023-08-29 17:51:27,747 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 323 places, 1007 transitions, 18056 flow [2023-08-29 17:51:28,087 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 318 places, 1007 transitions, 17863 flow, removed 15 selfloop flow, removed 5 redundant places. [2023-08-29 17:51:28,099 INFO L231 Difference]: Finished difference. Result has 323 places, 846 transitions, 14935 flow [2023-08-29 17:51:28,100 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=494, PETRI_DIFFERENCE_MINUEND_FLOW=12727, PETRI_DIFFERENCE_MINUEND_PLACES=295, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=781, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=129, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=591, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=14935, PETRI_PLACES=323, PETRI_TRANSITIONS=846} [2023-08-29 17:51:28,100 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 217 predicate places. [2023-08-29 17:51:28,100 INFO L495 AbstractCegarLoop]: Abstraction has has 323 places, 846 transitions, 14935 flow [2023-08-29 17:51:28,100 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 196.41666666666666) internal successors, (2357), 12 states have internal predecessors, (2357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:51:28,100 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:51:28,100 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:51:28,101 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-08-29 17:51:28,101 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting t_funErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-29 17:51:28,101 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:51:28,101 INFO L85 PathProgramCache]: Analyzing trace with hash 502882784, now seen corresponding path program 1 times [2023-08-29 17:51:28,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:51:28,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300697100] [2023-08-29 17:51:28,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:51:28,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:51:28,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:51:29,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:51:29,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:51:29,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300697100] [2023-08-29 17:51:29,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1300697100] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:51:29,218 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:51:29,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-29 17:51:29,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120115694] [2023-08-29 17:51:29,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:51:29,219 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-29 17:51:29,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:51:29,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-29 17:51:29,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-08-29 17:51:29,813 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 170 out of 494 [2023-08-29 17:51:29,814 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 323 places, 846 transitions, 14935 flow. Second operand has 11 states, 11 states have (on average 173.54545454545453) internal successors, (1909), 11 states have internal predecessors, (1909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:51:29,814 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:51:29,814 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 170 of 494 [2023-08-29 17:51:29,814 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:51:34,127 INFO L130 PetriNetUnfolder]: 4306/9962 cut-off events. [2023-08-29 17:51:34,127 INFO L131 PetriNetUnfolder]: For 126491/126737 co-relation queries the response was YES. [2023-08-29 17:51:34,177 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58135 conditions, 9962 events. 4306/9962 cut-off events. For 126491/126737 co-relation queries the response was YES. Maximal size of possible extension queue 248. Compared 81060 event pairs, 1224 based on Foata normal form. 31/9940 useless extension candidates. Maximal degree in co-relation 58049. Up to 2277 conditions per place. [2023-08-29 17:51:34,198 INFO L137 encePairwiseOnDemand]: 470/494 looper letters, 792 selfloop transitions, 216 changer transitions 46/1080 dead transitions. [2023-08-29 17:51:34,198 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 334 places, 1080 transitions, 19202 flow [2023-08-29 17:51:34,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-29 17:51:34,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-29 17:51:34,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 2342 transitions. [2023-08-29 17:51:34,201 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3950742240215924 [2023-08-29 17:51:34,201 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 2342 transitions. [2023-08-29 17:51:34,201 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 2342 transitions. [2023-08-29 17:51:34,201 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:51:34,201 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 2342 transitions. [2023-08-29 17:51:34,203 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 195.16666666666666) internal successors, (2342), 12 states have internal predecessors, (2342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:51:34,205 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 494.0) internal successors, (6422), 13 states have internal predecessors, (6422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:51:34,205 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 494.0) internal successors, (6422), 13 states have internal predecessors, (6422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:51:34,205 INFO L175 Difference]: Start difference. First operand has 323 places, 846 transitions, 14935 flow. Second operand 12 states and 2342 transitions. [2023-08-29 17:51:34,206 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 334 places, 1080 transitions, 19202 flow [2023-08-29 17:51:34,547 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 319 places, 1080 transitions, 19001 flow, removed 9 selfloop flow, removed 15 redundant places. [2023-08-29 17:51:34,560 INFO L231 Difference]: Finished difference. Result has 323 places, 854 transitions, 15425 flow [2023-08-29 17:51:34,560 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=494, PETRI_DIFFERENCE_MINUEND_FLOW=14739, PETRI_DIFFERENCE_MINUEND_PLACES=308, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=846, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=208, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=634, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=15425, PETRI_PLACES=323, PETRI_TRANSITIONS=854} [2023-08-29 17:51:34,563 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 217 predicate places. [2023-08-29 17:51:34,563 INFO L495 AbstractCegarLoop]: Abstraction has has 323 places, 854 transitions, 15425 flow [2023-08-29 17:51:34,564 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 173.54545454545453) internal successors, (1909), 11 states have internal predecessors, (1909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:51:34,564 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:51:34,564 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] [2023-08-29 17:51:34,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-08-29 17:51:34,564 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-29 17:51:34,564 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:51:34,565 INFO L85 PathProgramCache]: Analyzing trace with hash 747243456, now seen corresponding path program 4 times [2023-08-29 17:51:34,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:51:34,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132050807] [2023-08-29 17:51:34,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:51:34,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:51:34,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:51:35,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:51:35,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:51:35,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132050807] [2023-08-29 17:51:35,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2132050807] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:51:35,931 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:51:35,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-29 17:51:35,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002222086] [2023-08-29 17:51:35,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:51:35,932 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-29 17:51:35,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:51:35,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-29 17:51:35,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2023-08-29 17:51:37,211 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 194 out of 494 [2023-08-29 17:51:37,213 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 323 places, 854 transitions, 15425 flow. Second operand has 12 states, 12 states have (on average 196.41666666666666) internal successors, (2357), 12 states have internal predecessors, (2357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:51:37,213 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:51:37,213 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 194 of 494 [2023-08-29 17:51:37,213 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:51:41,595 INFO L130 PetriNetUnfolder]: 2815/8003 cut-off events. [2023-08-29 17:51:41,595 INFO L131 PetriNetUnfolder]: For 146467/146942 co-relation queries the response was YES. [2023-08-29 17:51:41,659 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52289 conditions, 8003 events. 2815/8003 cut-off events. For 146467/146942 co-relation queries the response was YES. Maximal size of possible extension queue 243. Compared 72800 event pairs, 298 based on Foata normal form. 75/7961 useless extension candidates. Maximal degree in co-relation 52198. Up to 2154 conditions per place. [2023-08-29 17:51:41,680 INFO L137 encePairwiseOnDemand]: 473/494 looper letters, 660 selfloop transitions, 216 changer transitions 16/1108 dead transitions. [2023-08-29 17:51:41,681 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 345 places, 1108 transitions, 21640 flow [2023-08-29 17:51:41,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-08-29 17:51:41,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2023-08-29 17:51:41,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 4631 transitions. [2023-08-29 17:51:41,684 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40758669248371765 [2023-08-29 17:51:41,684 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 4631 transitions. [2023-08-29 17:51:41,684 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 4631 transitions. [2023-08-29 17:51:41,685 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:51:41,685 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 4631 transitions. [2023-08-29 17:51:41,688 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 201.34782608695653) internal successors, (4631), 23 states have internal predecessors, (4631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:51:41,693 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 494.0) internal successors, (11856), 24 states have internal predecessors, (11856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:51:41,693 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 494.0) internal successors, (11856), 24 states have internal predecessors, (11856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:51:41,693 INFO L175 Difference]: Start difference. First operand has 323 places, 854 transitions, 15425 flow. Second operand 23 states and 4631 transitions. [2023-08-29 17:51:41,693 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 345 places, 1108 transitions, 21640 flow [2023-08-29 17:51:42,042 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 339 places, 1108 transitions, 21418 flow, removed 15 selfloop flow, removed 6 redundant places. [2023-08-29 17:51:42,056 INFO L231 Difference]: Finished difference. Result has 347 places, 934 transitions, 17990 flow [2023-08-29 17:51:42,056 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=494, PETRI_DIFFERENCE_MINUEND_FLOW=15239, PETRI_DIFFERENCE_MINUEND_PLACES=317, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=854, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=139, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=646, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=17990, PETRI_PLACES=347, PETRI_TRANSITIONS=934} [2023-08-29 17:51:42,057 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 241 predicate places. [2023-08-29 17:51:42,057 INFO L495 AbstractCegarLoop]: Abstraction has has 347 places, 934 transitions, 17990 flow [2023-08-29 17:51:42,057 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 196.41666666666666) internal successors, (2357), 12 states have internal predecessors, (2357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:51:42,057 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:51:42,057 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] [2023-08-29 17:51:42,057 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-08-29 17:51:42,058 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-29 17:51:42,058 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:51:42,058 INFO L85 PathProgramCache]: Analyzing trace with hash 471059486, now seen corresponding path program 5 times [2023-08-29 17:51:42,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:51:42,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082543221] [2023-08-29 17:51:42,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:51:42,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:51:42,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:51:43,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:51:43,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:51:43,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082543221] [2023-08-29 17:51:43,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082543221] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:51:43,001 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:51:43,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-29 17:51:43,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971037381] [2023-08-29 17:51:43,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:51:43,001 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-29 17:51:43,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:51:43,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-29 17:51:43,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2023-08-29 17:51:44,475 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 194 out of 494 [2023-08-29 17:51:44,476 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 347 places, 934 transitions, 17990 flow. Second operand has 12 states, 12 states have (on average 196.41666666666666) internal successors, (2357), 12 states have internal predecessors, (2357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:51:44,476 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:51:44,476 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 194 of 494 [2023-08-29 17:51:44,476 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:51:47,959 INFO L130 PetriNetUnfolder]: 3171/8979 cut-off events. [2023-08-29 17:51:47,959 INFO L131 PetriNetUnfolder]: For 178932/179506 co-relation queries the response was YES. [2023-08-29 17:51:48,035 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59800 conditions, 8979 events. 3171/8979 cut-off events. For 178932/179506 co-relation queries the response was YES. Maximal size of possible extension queue 263. Compared 83669 event pairs, 312 based on Foata normal form. 108/8959 useless extension candidates. Maximal degree in co-relation 59702. Up to 2465 conditions per place. [2023-08-29 17:51:48,061 INFO L137 encePairwiseOnDemand]: 474/494 looper letters, 718 selfloop transitions, 228 changer transitions 19/1181 dead transitions. [2023-08-29 17:51:48,061 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 368 places, 1181 transitions, 24617 flow [2023-08-29 17:51:48,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-08-29 17:51:48,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2023-08-29 17:51:48,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 4444 transitions. [2023-08-29 17:51:48,065 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4089068825910931 [2023-08-29 17:51:48,065 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 4444 transitions. [2023-08-29 17:51:48,065 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 4444 transitions. [2023-08-29 17:51:48,067 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:51:48,067 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 4444 transitions. [2023-08-29 17:51:48,073 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 202.0) internal successors, (4444), 22 states have internal predecessors, (4444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:51:48,077 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 494.0) internal successors, (11362), 23 states have internal predecessors, (11362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:51:48,078 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 494.0) internal successors, (11362), 23 states have internal predecessors, (11362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:51:48,078 INFO L175 Difference]: Start difference. First operand has 347 places, 934 transitions, 17990 flow. Second operand 22 states and 4444 transitions. [2023-08-29 17:51:48,078 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 368 places, 1181 transitions, 24617 flow [2023-08-29 17:51:48,617 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 356 places, 1181 transitions, 24351 flow, removed 27 selfloop flow, removed 12 redundant places. [2023-08-29 17:51:48,633 INFO L231 Difference]: Finished difference. Result has 364 places, 997 transitions, 20466 flow [2023-08-29 17:51:48,634 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=494, PETRI_DIFFERENCE_MINUEND_FLOW=17725, PETRI_DIFFERENCE_MINUEND_PLACES=335, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=934, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=166, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=710, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=20466, PETRI_PLACES=364, PETRI_TRANSITIONS=997} [2023-08-29 17:51:48,634 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, 258 predicate places. [2023-08-29 17:51:48,634 INFO L495 AbstractCegarLoop]: Abstraction has has 364 places, 997 transitions, 20466 flow [2023-08-29 17:51:48,635 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 196.41666666666666) internal successors, (2357), 12 states have internal predecessors, (2357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:51:48,635 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:51:48,635 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] [2023-08-29 17:51:48,635 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-08-29 17:51:48,635 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-08-29 17:51:48,636 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:51:48,636 INFO L85 PathProgramCache]: Analyzing trace with hash 745080649, now seen corresponding path program 1 times [2023-08-29 17:51:48,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:51:48,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691781056] [2023-08-29 17:51:48,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:51:48,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:51:48,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-29 17:51:48,688 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-29 17:51:48,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-29 17:51:48,747 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-29 17:51:48,747 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-29 17:51:48,748 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr3ASSERT_VIOLATIONDATA_RACE (36 of 37 remaining) [2023-08-29 17:51:48,749 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (35 of 37 remaining) [2023-08-29 17:51:48,749 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (34 of 37 remaining) [2023-08-29 17:51:48,749 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (33 of 37 remaining) [2023-08-29 17:51:48,749 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (32 of 37 remaining) [2023-08-29 17:51:48,749 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (31 of 37 remaining) [2023-08-29 17:51:48,749 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (30 of 37 remaining) [2023-08-29 17:51:48,749 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (29 of 37 remaining) [2023-08-29 17:51:48,750 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (28 of 37 remaining) [2023-08-29 17:51:48,750 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (27 of 37 remaining) [2023-08-29 17:51:48,750 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (26 of 37 remaining) [2023-08-29 17:51:48,750 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (25 of 37 remaining) [2023-08-29 17:51:48,750 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (24 of 37 remaining) [2023-08-29 17:51:48,750 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (23 of 37 remaining) [2023-08-29 17:51:48,750 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (22 of 37 remaining) [2023-08-29 17:51:48,750 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (21 of 37 remaining) [2023-08-29 17:51:48,751 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE (20 of 37 remaining) [2023-08-29 17:51:48,751 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE (19 of 37 remaining) [2023-08-29 17:51:48,751 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE (18 of 37 remaining) [2023-08-29 17:51:48,751 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE (17 of 37 remaining) [2023-08-29 17:51:48,751 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONDATA_RACE (16 of 37 remaining) [2023-08-29 17:51:48,751 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (15 of 37 remaining) [2023-08-29 17:51:48,751 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (14 of 37 remaining) [2023-08-29 17:51:48,751 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (13 of 37 remaining) [2023-08-29 17:51:48,752 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (12 of 37 remaining) [2023-08-29 17:51:48,753 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (11 of 37 remaining) [2023-08-29 17:51:48,753 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (10 of 37 remaining) [2023-08-29 17:51:48,753 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (9 of 37 remaining) [2023-08-29 17:51:48,753 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONDATA_RACE (8 of 37 remaining) [2023-08-29 17:51:48,753 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONDATA_RACE (7 of 37 remaining) [2023-08-29 17:51:48,753 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (6 of 37 remaining) [2023-08-29 17:51:48,753 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (5 of 37 remaining) [2023-08-29 17:51:48,754 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (4 of 37 remaining) [2023-08-29 17:51:48,754 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (3 of 37 remaining) [2023-08-29 17:51:48,754 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (2 of 37 remaining) [2023-08-29 17:51:48,754 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONDATA_RACE (1 of 37 remaining) [2023-08-29 17:51:48,754 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONDATA_RACE (0 of 37 remaining) [2023-08-29 17:51:48,754 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-08-29 17:51:48,754 INFO L445 BasicCegarLoop]: Path program histogram: [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:51:48,759 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-29 17:51:48,759 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-29 17:51:48,824 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 05:51:48 BasicIcfg [2023-08-29 17:51:48,824 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-29 17:51:48,824 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-29 17:51:48,824 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-29 17:51:48,824 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-29 17:51:48,825 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 05:44:50" (3/4) ... [2023-08-29 17:51:48,826 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-08-29 17:51:48,826 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-29 17:51:48,828 INFO L158 Benchmark]: Toolchain (without parser) took 419420.57ms. Allocated memory was 96.5MB in the beginning and 2.9GB in the end (delta: 2.8GB). Free memory was 72.1MB in the beginning and 2.0GB in the end (delta: -1.9GB). Peak memory consumption was 854.5MB. Max. memory is 16.1GB. [2023-08-29 17:51:48,828 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 62.9MB. Free memory was 41.0MB in the beginning and 40.9MB in the end (delta: 58.3kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 17:51:48,829 INFO L158 Benchmark]: CACSL2BoogieTranslator took 572.14ms. Allocated memory is still 96.5MB. Free memory was 71.8MB in the beginning and 55.0MB in the end (delta: 16.8MB). Peak memory consumption was 28.0MB. Max. memory is 16.1GB. [2023-08-29 17:51:48,829 INFO L158 Benchmark]: Boogie Procedure Inliner took 65.38ms. Allocated memory is still 96.5MB. Free memory was 55.0MB in the beginning and 51.6MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-29 17:51:48,829 INFO L158 Benchmark]: Boogie Preprocessor took 40.86ms. Allocated memory is still 96.5MB. Free memory was 51.6MB in the beginning and 48.3MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-29 17:51:48,829 INFO L158 Benchmark]: RCFGBuilder took 604.74ms. Allocated memory is still 96.5MB. Free memory was 48.3MB in the beginning and 50.4MB in the end (delta: -2.1MB). Peak memory consumption was 13.5MB. Max. memory is 16.1GB. [2023-08-29 17:51:48,830 INFO L158 Benchmark]: TraceAbstraction took 418129.70ms. Allocated memory was 96.5MB in the beginning and 2.9GB in the end (delta: 2.8GB). Free memory was 49.9MB in the beginning and 2.0GB in the end (delta: -2.0GB). Peak memory consumption was 831.8MB. Max. memory is 16.1GB. [2023-08-29 17:51:48,830 INFO L158 Benchmark]: Witness Printer took 2.21ms. Allocated memory is still 2.9GB. Free memory is still 2.0GB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 17:51:48,831 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 62.9MB. Free memory was 41.0MB in the beginning and 40.9MB in the end (delta: 58.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 572.14ms. Allocated memory is still 96.5MB. Free memory was 71.8MB in the beginning and 55.0MB in the end (delta: 16.8MB). Peak memory consumption was 28.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 65.38ms. Allocated memory is still 96.5MB. Free memory was 55.0MB in the beginning and 51.6MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.86ms. Allocated memory is still 96.5MB. Free memory was 51.6MB in the beginning and 48.3MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 604.74ms. Allocated memory is still 96.5MB. Free memory was 48.3MB in the beginning and 50.4MB in the end (delta: -2.1MB). Peak memory consumption was 13.5MB. Max. memory is 16.1GB. * TraceAbstraction took 418129.70ms. Allocated memory was 96.5MB in the beginning and 2.9GB in the end (delta: 2.8GB). Free memory was 49.9MB in the beginning and 2.0GB in the end (delta: -2.0GB). Peak memory consumption was 831.8MB. Max. memory is 16.1GB. * Witness Printer took 2.21ms. Allocated memory is still 2.9GB. Free memory is still 2.0GB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 337.7s, 270 PlacesBefore, 106 PlacesAfterwards, 266 TransitionsBefore, 102 TransitionsAfterwards, 7590 CoEnabledTransitionPairs, 10 FixpointIterations, 189 TrivialSequentialCompositions, 38 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 227 TotalNumberOfCompositions, 81588 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 9814, independent: 8026, independent conditional: 0, independent unconditional: 8026, dependent: 1788, dependent conditional: 0, dependent unconditional: 1788, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2667, independent: 2529, independent conditional: 0, independent unconditional: 2529, dependent: 138, dependent conditional: 0, dependent unconditional: 138, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 9814, independent: 5497, independent conditional: 0, independent unconditional: 5497, dependent: 1650, dependent conditional: 0, dependent unconditional: 1650, unknown: 2667, unknown conditional: 0, unknown unconditional: 2667] , Statistics on independence cache: Total cache size (in pairs): 553, Positive cache size: 451, Positive conditional cache size: 0, Positive unconditional cache size: 451, Negative cache size: 102, Negative conditional cache size: 0, Negative unconditional cache size: 102, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - DataRaceFoundResult [Line: 1235]: Data race detected Data race detected The following path leads to a data race: [L1223-L1226] 0 struct s { int datum; struct s *next; } *A, *B; [L1231] 0 pthread_mutex_t A_mutex = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L1232] 0 pthread_mutex_t B_mutex = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L1243] 0 pthread_t t1; [L1244] 0 struct s *p = malloc(sizeof(struct s)); [L1245] CALL 0 init(p,9) [L1228] 0 p -> datum = x [L1229] 0 p -> next = ((void *)0) [L1245] RET 0 init(p,9) [L1246] 0 A = malloc(sizeof(struct s)) [L1247] 0 init(A,3) [L1247] CALL 0 init(A,3) [L1228] 0 p -> datum = x [L1229] 0 p -> next = ((void *)0) [L1247] RET 0 init(A,3) [L1248] EXPR 0 A->next [L1248] 0 A->next = p [L1249] 0 B = malloc(sizeof(struct s)) [L1250] 0 init(B,5) [L1250] CALL 0 init(B,5) [L1228] 0 p -> datum = x [L1229] 0 p -> next = ((void *)0) [L1250] RET 0 init(B,5) [L1251] EXPR 0 B->next [L1251] 0 B->next = p [L1252] FCALL, FORK 0 pthread_create(&t1, ((void *)0), t_fun, ((void *)0)) VAL [A={-2:0}, A_mutex={1:0}, B={11:0}, B_mutex={2:0}, arg={0:0}, p={-3:0}, pthread_create(&t1, ((void *)0), t_fun, ((void *)0))=-1, t1={13:0}] [L1254] EXPR 0 A->next VAL [A->next={-3:0}, A={-2:0}, A_mutex={1:0}, B={11:0}, B_mutex={2:0}, arg={0:0}, p={-3:0}, t1={13:0}] [L1254] 0 p = A->next VAL [A->next={-3:0}, A={-2:0}, A_mutex={1:0}, B={11:0}, B_mutex={2:0}, arg={0:0}, p={-3:0}, t1={13:0}] [L1255] EXPR 0 p->datum VAL [A={-2:0}, A_mutex={1:0}, B={11:0}, B_mutex={2:0}, arg={0:0}, p->datum=9, p={-3:0}, t1={13:0}] [L1255] 0 printf("%d\n", p->datum) [L1258] EXPR 0 B->next VAL [A={-2:0}, A_mutex={1:0}, B->next={-3:0}, B={11:0}, B_mutex={2:0}, arg={0:0}, p={-3:0}, t1={13:0}] [L1235] EXPR 1 A->next VAL [A->next={-3:0}, A={-2:0}, A_mutex={1:0}, B={11:0}, B_mutex={2:0}, arg={0:0}, arg={0:0}] [L1235] EXPR 1 A->next->datum VAL [A->next->datum=9, A->next={-3:0}, A={-2:0}, A_mutex={1:0}, B={11:0}, B_mutex={2:0}, arg={0:0}, arg={0:0}] [L1235] 1 A->next->datum++ VAL [A->next->datum++=27, A->next->datum++=9, A->next->datum=9, A->next={-3:0}, A={-2:0}, A_mutex={1:0}, B={11:0}, B_mutex={2:0}, arg={0:0}, arg={0:0}] [L1258] 0 p = B->next [L1259] 0 p->datum VAL [A->next->datum++=27, A->next->datum++=9, A->next->datum=9, A->next={-3:0}, A={-2:0}, A_mutex={1:0}, B={11:0}, B_mutex={2:0}, arg={0:0}, arg={0:0}, p->datum=10, p={-3:0}, t1={13:0}] [L1235] 1 A->next->datum++ VAL [A->next->datum++=27, A->next->datum++=9, A->next->datum=9, A->next={-3:0}, A={-2:0}, A_mutex={1:0}, B={11:0}, B_mutex={2:0}, arg={0:0}, arg={0:0}] Now there is a data race, but we were unable to determine exactly which statements and variables are involved. There could be a race between one of the statements * C: printf("%d\n", p->datum) [1255] * C: init(A,3) [1247] * C: p -> datum = x [1228] * C: A->next->datum [1235] * C: B->next [1258] * C: p -> datum = x [1228] * C: B->next [1251] * C: p = B->next [1258] * C: p = A->next [1254] * C: A->next = p [1248] * C: A->next->datum++ [1235] * C: p -> next = ((void *)0) [1229] * C: A->next->datum++ [1235] * C: printf("%d\n", p->datum) [1255] * C: p -> next = ((void *)0) [1229] * C: p = B->next [1258] * C: A->next->datum++ [1235] * C: p -> next = ((void *)0) [1229] * C: A->next->datum [1235] * C: A->next = p [1248] * C: p = B->next [1258] * C: A->next = p [1248] * C: init(B,5) [1250] * C: A->next->datum [1235] * C: p = B->next [1258] * C: printf("%d\n", p->datum) [1259] * C: p = A->next [1254] * C: B->next = p [1251] * C: B->next = p [1251] * C: A->next->datum [1235] * C: p = A->next [1254] * C: p -> next = ((void *)0) [1229] * C: A->next [1248] * C: A->next = p [1248] * C: B->next = p [1251] * C: A = malloc(sizeof(struct s)) [1246] * C: A->next [1254] * C: p -> datum = x [1228] * C: B->next = p [1251] * C: p -> datum = x [1228] * C: A->next [1235] * C: printf("%d\n", p->datum) [1255] * C: A->next->datum++ [1235] * C: printf("%d\n", p->datum) [1255] * C: p = A->next [1254] * C: B = malloc(sizeof(struct s)) [1249] and C: A->next->datum++ [1235] - UnprovableResult [Line: 1228]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1229]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1246]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1247]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1228]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1229]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1248]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1248]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1249]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1250]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1228]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1229]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1251]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1251]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1254]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1254]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1255]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1258]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1258]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1259]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1252]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 1235]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1235]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1235]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1238]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1238]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1238]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1238]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 339 locations, 37 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: 418.0s, OverallIterations: 25, TraceHistogramMax: 1, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 63.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 337.8s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 11588 SdHoareTripleChecker+Valid, 43.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 8784 mSDsluCounter, 3008 SdHoareTripleChecker+Invalid, 40.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2872 mSDsCounter, 3263 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 36741 IncrementalHoareTripleChecker+Invalid, 40004 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3263 mSolverCounterUnsat, 136 mSDtfsCounter, 36741 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 342 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 255 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 802 ImplicationChecksByTransitivity, 2.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20466occurred in iteration=24, InterpolantAutomatonStates: 275, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 15.3s InterpolantComputationTime, 841 NumberOfCodeBlocks, 841 NumberOfCodeBlocksAsserted, 25 NumberOfCheckSat, 769 ConstructedInterpolants, 0 QuantifiedInterpolants, 12618 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 24 InterpolantComputations, 24 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 RESULT: Ultimate proved your program to be incorrect! [2023-08-29 17:51:48,905 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE