./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/goblint-regression/09-regions_05-ptra_rc.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --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_05-ptra_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 5d221fe111612a5fd289edcbc5a129acf7ca50098e249efcc8da191d610ed6fb --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-31 20:13:16,792 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-31 20:13:16,794 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-31 20:13:16,830 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-31 20:13:16,832 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-31 20:13:16,834 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-31 20:13:16,835 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-31 20:13:16,837 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-31 20:13:16,839 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-31 20:13:16,842 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-31 20:13:16,843 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-31 20:13:16,845 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-31 20:13:16,845 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-31 20:13:16,847 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-31 20:13:16,848 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-31 20:13:16,853 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-31 20:13:16,854 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-31 20:13:16,854 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-31 20:13:16,856 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-31 20:13:16,857 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-31 20:13:16,864 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-31 20:13:16,866 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-31 20:13:16,867 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-31 20:13:16,868 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-31 20:13:16,870 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-31 20:13:16,873 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-31 20:13:16,873 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-31 20:13:16,874 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-31 20:13:16,875 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-31 20:13:16,876 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-31 20:13:16,876 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-31 20:13:16,878 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-31 20:13:16,879 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-31 20:13:16,879 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-31 20:13:16,880 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-31 20:13:16,880 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-31 20:13:16,881 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-31 20:13:16,881 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-31 20:13:16,881 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-31 20:13:16,882 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-31 20:13:16,882 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-31 20:13:16,883 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-31 20:13:16,904 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-31 20:13:16,905 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-31 20:13:16,906 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-31 20:13:16,906 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-31 20:13:16,907 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-31 20:13:16,907 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-31 20:13:16,908 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-31 20:13:16,908 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-31 20:13:16,908 INFO L138 SettingsManager]: * Use SBE=true [2023-08-31 20:13:16,908 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-31 20:13:16,909 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-31 20:13:16,909 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-31 20:13:16,909 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-31 20:13:16,909 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-31 20:13:16,909 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-31 20:13:16,910 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-31 20:13:16,910 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-31 20:13:16,910 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-31 20:13:16,910 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-31 20:13:16,910 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-31 20:13:16,910 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-31 20:13:16,910 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-31 20:13:16,910 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-31 20:13:16,911 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-31 20:13:16,911 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-31 20:13:16,911 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-31 20:13:16,911 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 20:13:16,911 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-31 20:13:16,911 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-31 20:13:16,912 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-31 20:13:16,912 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-31 20:13:16,912 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-31 20:13:16,912 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-31 20:13:16,912 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-31 20:13:16,912 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-31 20:13:16,913 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-31 20:13:16,913 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-31 20:13:16,913 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5d221fe111612a5fd289edcbc5a129acf7ca50098e249efcc8da191d610ed6fb Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-08-31 20:13:17,135 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-31 20:13:17,153 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-31 20:13:17,155 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-31 20:13:17,156 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-31 20:13:17,156 INFO L275 PluginConnector]: CDTParser initialized [2023-08-31 20:13:17,157 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/09-regions_05-ptra_rc.i [2023-08-31 20:13:18,142 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-31 20:13:18,391 INFO L351 CDTParser]: Found 1 translation units. [2023-08-31 20:13:18,391 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/09-regions_05-ptra_rc.i [2023-08-31 20:13:18,421 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f651e88c/ad103bc0a47e4a64b157b4e57745ebb1/FLAGdf5ba02a2 [2023-08-31 20:13:18,438 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f651e88c/ad103bc0a47e4a64b157b4e57745ebb1 [2023-08-31 20:13:18,440 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-31 20:13:18,441 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-31 20:13:18,443 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-31 20:13:18,443 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-31 20:13:18,445 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-31 20:13:18,445 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 08:13:18" (1/1) ... [2023-08-31 20:13:18,448 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@81f50cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:13:18, skipping insertion in model container [2023-08-31 20:13:18,448 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 08:13:18" (1/1) ... [2023-08-31 20:13:18,452 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-31 20:13:18,492 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-31 20:13:18,951 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 20:13:18,960 INFO L203 MainTranslator]: Completed pre-run [2023-08-31 20:13:19,008 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 20:13:19,079 INFO L208 MainTranslator]: Completed translation [2023-08-31 20:13:19,080 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:13:19 WrapperNode [2023-08-31 20:13:19,080 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-31 20:13:19,081 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-31 20:13:19,081 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-31 20:13:19,081 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-31 20:13:19,085 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:13:19" (1/1) ... [2023-08-31 20:13:19,111 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:13:19" (1/1) ... [2023-08-31 20:13:19,154 INFO L138 Inliner]: procedures = 369, calls = 37, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 208 [2023-08-31 20:13:19,160 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-31 20:13:19,161 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-31 20:13:19,161 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-31 20:13:19,161 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-31 20:13:19,167 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:13:19" (1/1) ... [2023-08-31 20:13:19,167 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:13:19" (1/1) ... [2023-08-31 20:13:19,179 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:13:19" (1/1) ... [2023-08-31 20:13:19,185 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:13:19" (1/1) ... [2023-08-31 20:13:19,198 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:13:19" (1/1) ... [2023-08-31 20:13:19,200 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:13:19" (1/1) ... [2023-08-31 20:13:19,209 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:13:19" (1/1) ... [2023-08-31 20:13:19,210 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:13:19" (1/1) ... [2023-08-31 20:13:19,212 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-31 20:13:19,218 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-31 20:13:19,218 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-31 20:13:19,218 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-31 20:13:19,218 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:13:19" (1/1) ... [2023-08-31 20:13:19,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 20:13:19,230 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 20:13:19,255 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) [2023-08-31 20:13:19,267 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 [2023-08-31 20:13:19,299 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-31 20:13:19,300 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-08-31 20:13:19,303 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-31 20:13:19,304 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-31 20:13:19,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-31 20:13:19,304 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-31 20:13:19,307 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-31 20:13:19,307 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-31 20:13:19,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-08-31 20:13:19,308 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-31 20:13:19,308 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-31 20:13:19,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-31 20:13:19,314 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-31 20:13:19,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-31 20:13:19,316 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-31 20:13:19,437 INFO L236 CfgBuilder]: Building ICFG [2023-08-31 20:13:19,438 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-31 20:13:19,809 INFO L277 CfgBuilder]: Performing block encoding [2023-08-31 20:13:19,827 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-31 20:13:19,828 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-31 20:13:19,829 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 08:13:19 BoogieIcfgContainer [2023-08-31 20:13:19,829 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-31 20:13:19,831 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-31 20:13:19,831 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-31 20:13:19,832 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-31 20:13:19,833 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.08 08:13:18" (1/3) ... [2023-08-31 20:13:19,833 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49a17d28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 08:13:19, skipping insertion in model container [2023-08-31 20:13:19,833 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:13:19" (2/3) ... [2023-08-31 20:13:19,833 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49a17d28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 08:13:19, skipping insertion in model container [2023-08-31 20:13:19,833 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 08:13:19" (3/3) ... [2023-08-31 20:13:19,834 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_05-ptra_rc.i [2023-08-31 20:13:19,839 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-31 20:13:19,845 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-31 20:13:19,846 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2023-08-31 20:13:19,846 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-31 20:13:19,927 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-31 20:13:19,958 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 240 places, 236 transitions, 477 flow [2023-08-31 20:13:20,026 INFO L130 PetriNetUnfolder]: 0/235 cut-off events. [2023-08-31 20:13:20,026 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 20:13:20,029 INFO L83 FinitePrefix]: Finished finitePrefix Result has 239 conditions, 235 events. 0/235 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 90 event pairs, 0 based on Foata normal form. 0/213 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-08-31 20:13:20,029 INFO L82 GeneralOperation]: Start removeDead. Operand has 240 places, 236 transitions, 477 flow [2023-08-31 20:13:20,036 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 239 places, 235 transitions, 473 flow [2023-08-31 20:13:20,039 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-31 20:13:20,049 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 239 places, 235 transitions, 473 flow [2023-08-31 20:13:20,051 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 239 places, 235 transitions, 473 flow [2023-08-31 20:13:20,052 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 239 places, 235 transitions, 473 flow [2023-08-31 20:13:20,089 INFO L130 PetriNetUnfolder]: 0/235 cut-off events. [2023-08-31 20:13:20,089 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 20:13:20,089 INFO L83 FinitePrefix]: Finished finitePrefix Result has 239 conditions, 235 events. 0/235 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 90 event pairs, 0 based on Foata normal form. 0/213 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-08-31 20:13:20,091 INFO L119 LiptonReduction]: Number of co-enabled transitions 4620 [2023-08-31 20:14:07,348 WARN L222 SmtUtils]: Spent 21.36s on a formula simplification. DAG size of input: 160 DAG size of output: 158 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-31 20:14:19,217 WARN L222 SmtUtils]: Spent 7.84s on a formula simplification. DAG size of input: 160 DAG size of output: 158 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-31 20:14:25,024 WARN L222 SmtUtils]: Spent 5.80s on a formula simplification that was a NOOP. DAG size: 148 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-31 20:14:30,732 WARN L222 SmtUtils]: Spent 5.68s on a formula simplification that was a NOOP. DAG size: 272 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-31 20:14:37,537 WARN L222 SmtUtils]: Spent 6.80s on a formula simplification that was a NOOP. DAG size: 244 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-31 20:15:04,081 WARN L222 SmtUtils]: Spent 26.53s on a formula simplification that was a NOOP. DAG size: 272 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-31 20:15:15,704 WARN L222 SmtUtils]: Spent 11.62s on a formula simplification that was a NOOP. DAG size: 244 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-31 20:15:57,815 WARN L222 SmtUtils]: Spent 42.10s on a formula simplification that was a NOOP. DAG size: 344 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-31 20:16:26,277 WARN L222 SmtUtils]: Spent 28.46s on a formula simplification that was a NOOP. DAG size: 305 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-31 20:17:11,301 WARN L222 SmtUtils]: Spent 45.02s on a formula simplification that was a NOOP. DAG size: 344 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-31 20:17:55,194 WARN L222 SmtUtils]: Spent 43.89s on a formula simplification that was a NOOP. DAG size: 305 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-31 20:17:55,200 INFO L134 LiptonReduction]: Checked pairs total: 39612 [2023-08-31 20:17:55,201 INFO L136 LiptonReduction]: Total number of compositions: 211 [2023-08-31 20:17:55,209 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-31 20:17:55,212 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;@2f1587ee, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-31 20:17:55,212 INFO L358 AbstractCegarLoop]: Starting to check reachability of 30 error locations. [2023-08-31 20:17:55,213 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-31 20:17:55,213 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 20:17:55,213 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:17:55,213 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-31 20:17:55,214 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-31 20:17:55,216 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:17:55,217 INFO L85 PathProgramCache]: Analyzing trace with hash 768, now seen corresponding path program 1 times [2023-08-31 20:17:55,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:17:55,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159884215] [2023-08-31 20:17:55,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:17:55,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:17:55,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:17:55,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:17:55,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:17:55,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159884215] [2023-08-31 20:17:55,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1159884215] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:17:55,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:17:55,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-31 20:17:55,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33575406] [2023-08-31 20:17:55,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:17:55,342 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-31 20:17:55,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:17:55,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-31 20:17:55,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-31 20:17:55,367 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 235 out of 447 [2023-08-31 20:17:55,371 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 77 transitions, 157 flow. Second operand has 2 states, 2 states have (on average 235.5) internal successors, (471), 2 states have internal predecessors, (471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:17:55,371 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:17:55,371 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 235 of 447 [2023-08-31 20:17:55,372 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:17:55,596 INFO L130 PetriNetUnfolder]: 75/373 cut-off events. [2023-08-31 20:17:55,596 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 20:17:55,599 INFO L83 FinitePrefix]: Finished finitePrefix Result has 550 conditions, 373 events. 75/373 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1763 event pairs, 75 based on Foata normal form. 0/349 useless extension candidates. Maximal degree in co-relation 541. Up to 173 conditions per place. [2023-08-31 20:17:55,601 INFO L137 encePairwiseOnDemand]: 435/447 looper letters, 22 selfloop transitions, 0 changer transitions 0/65 dead transitions. [2023-08-31 20:17:55,602 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 65 transitions, 177 flow [2023-08-31 20:17:55,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-31 20:17:55,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-31 20:17:55,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 504 transitions. [2023-08-31 20:17:55,617 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5637583892617449 [2023-08-31 20:17:55,618 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 504 transitions. [2023-08-31 20:17:55,618 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 504 transitions. [2023-08-31 20:17:55,620 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:17:55,622 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 504 transitions. [2023-08-31 20:17:55,626 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 252.0) internal successors, (504), 2 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:17:55,630 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 447.0) internal successors, (1341), 3 states have internal predecessors, (1341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:17:55,630 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 447.0) internal successors, (1341), 3 states have internal predecessors, (1341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:17:55,632 INFO L175 Difference]: Start difference. First operand has 81 places, 77 transitions, 157 flow. Second operand 2 states and 504 transitions. [2023-08-31 20:17:55,633 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 65 transitions, 177 flow [2023-08-31 20:17:55,635 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 65 transitions, 176 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-31 20:17:55,637 INFO L231 Difference]: Finished difference. Result has 69 places, 65 transitions, 132 flow [2023-08-31 20:17:55,638 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=447, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=132, PETRI_PLACES=69, PETRI_TRANSITIONS=65} [2023-08-31 20:17:55,641 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, -12 predicate places. [2023-08-31 20:17:55,641 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 65 transitions, 132 flow [2023-08-31 20:17:55,641 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 235.5) internal successors, (471), 2 states have internal predecessors, (471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:17:55,642 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:17:55,642 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-31 20:17:55,642 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-31 20:17:55,643 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-31 20:17:55,652 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:17:55,652 INFO L85 PathProgramCache]: Analyzing trace with hash 744712625, now seen corresponding path program 1 times [2023-08-31 20:17:55,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:17:55,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24015595] [2023-08-31 20:17:55,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:17:55,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:17:55,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:17:55,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:17:55,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:17:55,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24015595] [2023-08-31 20:17:55,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24015595] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:17:55,907 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:17:55,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 20:17:55,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571272303] [2023-08-31 20:17:55,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:17:55,908 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 20:17:55,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:17:55,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 20:17:55,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 20:17:55,924 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 219 out of 447 [2023-08-31 20:17:55,925 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 65 transitions, 132 flow. Second operand has 3 states, 3 states have (on average 220.66666666666666) internal successors, (662), 3 states have internal predecessors, (662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:17:55,925 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:17:55,925 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 219 of 447 [2023-08-31 20:17:55,925 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:17:56,176 INFO L130 PetriNetUnfolder]: 112/486 cut-off events. [2023-08-31 20:17:56,177 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 20:17:56,178 INFO L83 FinitePrefix]: Finished finitePrefix Result has 740 conditions, 486 events. 112/486 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 2344 event pairs, 112 based on Foata normal form. 0/471 useless extension candidates. Maximal degree in co-relation 737. Up to 249 conditions per place. [2023-08-31 20:17:56,179 INFO L137 encePairwiseOnDemand]: 443/447 looper letters, 24 selfloop transitions, 1 changer transitions 0/62 dead transitions. [2023-08-31 20:17:56,179 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 62 transitions, 176 flow [2023-08-31 20:17:56,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 20:17:56,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 20:17:56,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 685 transitions. [2023-08-31 20:17:56,181 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5108128262490679 [2023-08-31 20:17:56,181 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 685 transitions. [2023-08-31 20:17:56,181 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 685 transitions. [2023-08-31 20:17:56,181 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:17:56,181 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 685 transitions. [2023-08-31 20:17:56,183 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 228.33333333333334) internal successors, (685), 3 states have internal predecessors, (685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:17:56,184 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 447.0) internal successors, (1788), 4 states have internal predecessors, (1788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:17:56,185 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 447.0) internal successors, (1788), 4 states have internal predecessors, (1788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:17:56,185 INFO L175 Difference]: Start difference. First operand has 69 places, 65 transitions, 132 flow. Second operand 3 states and 685 transitions. [2023-08-31 20:17:56,185 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 62 transitions, 176 flow [2023-08-31 20:17:56,186 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 62 transitions, 176 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 20:17:56,186 INFO L231 Difference]: Finished difference. Result has 68 places, 62 transitions, 128 flow [2023-08-31 20:17:56,187 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=447, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=128, PETRI_PLACES=68, PETRI_TRANSITIONS=62} [2023-08-31 20:17:56,187 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, -13 predicate places. [2023-08-31 20:17:56,187 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 62 transitions, 128 flow [2023-08-31 20:17:56,188 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 220.66666666666666) internal successors, (662), 3 states have internal predecessors, (662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:17:56,188 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:17:56,188 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:17:56,188 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-31 20:17:56,188 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-31 20:17:56,189 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:17:56,189 INFO L85 PathProgramCache]: Analyzing trace with hash -1420049530, now seen corresponding path program 1 times [2023-08-31 20:17:56,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:17:56,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98163902] [2023-08-31 20:17:56,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:17:56,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:17:56,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:17:56,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:17:56,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:17:56,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98163902] [2023-08-31 20:17:56,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [98163902] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:17:56,601 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:17:56,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 20:17:56,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863266362] [2023-08-31 20:17:56,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:17:56,602 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 20:17:56,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:17:56,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 20:17:56,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 20:17:56,878 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 177 out of 447 [2023-08-31 20:17:56,879 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 62 transitions, 128 flow. Second operand has 6 states, 6 states have (on average 178.5) internal successors, (1071), 6 states have internal predecessors, (1071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:17:56,879 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:17:56,880 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 177 of 447 [2023-08-31 20:17:56,880 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:17:57,617 INFO L130 PetriNetUnfolder]: 432/1062 cut-off events. [2023-08-31 20:17:57,618 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 20:17:57,619 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1982 conditions, 1062 events. 432/1062 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 5103 event pairs, 329 based on Foata normal form. 0/1030 useless extension candidates. Maximal degree in co-relation 1978. Up to 838 conditions per place. [2023-08-31 20:17:57,621 INFO L137 encePairwiseOnDemand]: 433/447 looper letters, 64 selfloop transitions, 37 changer transitions 0/118 dead transitions. [2023-08-31 20:17:57,621 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 118 transitions, 442 flow [2023-08-31 20:17:57,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 20:17:57,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 20:17:57,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1164 transitions. [2023-08-31 20:17:57,624 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43400447427293065 [2023-08-31 20:17:57,624 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1164 transitions. [2023-08-31 20:17:57,624 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1164 transitions. [2023-08-31 20:17:57,624 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:17:57,625 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1164 transitions. [2023-08-31 20:17:57,626 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 194.0) internal successors, (1164), 6 states have internal predecessors, (1164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:17:57,629 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 447.0) internal successors, (3129), 7 states have internal predecessors, (3129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:17:57,630 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 447.0) internal successors, (3129), 7 states have internal predecessors, (3129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:17:57,630 INFO L175 Difference]: Start difference. First operand has 68 places, 62 transitions, 128 flow. Second operand 6 states and 1164 transitions. [2023-08-31 20:17:57,630 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 118 transitions, 442 flow [2023-08-31 20:17:57,631 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 118 transitions, 441 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-31 20:17:57,632 INFO L231 Difference]: Finished difference. Result has 76 places, 98 transitions, 339 flow [2023-08-31 20:17:57,632 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=447, PETRI_DIFFERENCE_MINUEND_FLOW=127, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=339, PETRI_PLACES=76, PETRI_TRANSITIONS=98} [2023-08-31 20:17:57,633 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, -5 predicate places. [2023-08-31 20:17:57,633 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 98 transitions, 339 flow [2023-08-31 20:17:57,634 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 178.5) internal successors, (1071), 6 states have internal predecessors, (1071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:17:57,634 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:17:57,634 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:17:57,634 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-31 20:17:57,634 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-31 20:17:57,634 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:17:57,635 INFO L85 PathProgramCache]: Analyzing trace with hash 508169636, now seen corresponding path program 1 times [2023-08-31 20:17:57,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:17:57,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274996173] [2023-08-31 20:17:57,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:17:57,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:17:57,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:17:57,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:17:57,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:17:57,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274996173] [2023-08-31 20:17:57,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [274996173] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:17:57,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:17:57,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 20:17:57,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352433200] [2023-08-31 20:17:57,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:17:57,917 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 20:17:57,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:17:57,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 20:17:57,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 20:17:58,129 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 175 out of 447 [2023-08-31 20:17:58,130 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 98 transitions, 339 flow. Second operand has 6 states, 6 states have (on average 176.33333333333334) internal successors, (1058), 6 states have internal predecessors, (1058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:17:58,130 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:17:58,130 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 175 of 447 [2023-08-31 20:17:58,130 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:17:58,989 INFO L130 PetriNetUnfolder]: 649/1694 cut-off events. [2023-08-31 20:17:58,990 INFO L131 PetriNetUnfolder]: For 245/260 co-relation queries the response was YES. [2023-08-31 20:17:58,992 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3742 conditions, 1694 events. 649/1694 cut-off events. For 245/260 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 10197 event pairs, 60 based on Foata normal form. 0/1629 useless extension candidates. Maximal degree in co-relation 3734. Up to 721 conditions per place. [2023-08-31 20:17:58,996 INFO L137 encePairwiseOnDemand]: 419/447 looper letters, 145 selfloop transitions, 77 changer transitions 0/254 dead transitions. [2023-08-31 20:17:58,996 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 254 transitions, 1186 flow [2023-08-31 20:17:58,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 20:17:58,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 20:17:58,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1250 transitions. [2023-08-31 20:17:58,999 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46607009694258017 [2023-08-31 20:17:58,999 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1250 transitions. [2023-08-31 20:17:58,999 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1250 transitions. [2023-08-31 20:17:58,999 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:17:58,999 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1250 transitions. [2023-08-31 20:17:59,001 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 208.33333333333334) internal successors, (1250), 6 states have internal predecessors, (1250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:17:59,004 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 447.0) internal successors, (3129), 7 states have internal predecessors, (3129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:17:59,005 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 447.0) internal successors, (3129), 7 states have internal predecessors, (3129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:17:59,005 INFO L175 Difference]: Start difference. First operand has 76 places, 98 transitions, 339 flow. Second operand 6 states and 1250 transitions. [2023-08-31 20:17:59,005 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 254 transitions, 1186 flow [2023-08-31 20:17:59,009 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 254 transitions, 1186 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 20:17:59,011 INFO L231 Difference]: Finished difference. Result has 85 places, 171 transitions, 913 flow [2023-08-31 20:17:59,011 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=447, PETRI_DIFFERENCE_MINUEND_FLOW=337, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=913, PETRI_PLACES=85, PETRI_TRANSITIONS=171} [2023-08-31 20:17:59,011 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 4 predicate places. [2023-08-31 20:17:59,011 INFO L495 AbstractCegarLoop]: Abstraction has has 85 places, 171 transitions, 913 flow [2023-08-31 20:17:59,012 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 176.33333333333334) internal successors, (1058), 6 states have internal predecessors, (1058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:17:59,012 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:17:59,012 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:17:59,012 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-31 20:17:59,013 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-31 20:17:59,013 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:17:59,013 INFO L85 PathProgramCache]: Analyzing trace with hash -185816610, now seen corresponding path program 1 times [2023-08-31 20:17:59,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:17:59,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822703221] [2023-08-31 20:17:59,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:17:59,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:17:59,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:17:59,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:17:59,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:17:59,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822703221] [2023-08-31 20:17:59,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [822703221] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:17:59,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:17:59,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-31 20:17:59,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803066094] [2023-08-31 20:17:59,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:17:59,580 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-31 20:17:59,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:17:59,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-31 20:17:59,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-08-31 20:18:00,156 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 173 out of 447 [2023-08-31 20:18:00,158 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 171 transitions, 913 flow. Second operand has 10 states, 10 states have (on average 174.1) internal successors, (1741), 10 states have internal predecessors, (1741), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:18:00,158 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:18:00,158 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 173 of 447 [2023-08-31 20:18:00,158 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:18:01,648 INFO L130 PetriNetUnfolder]: 792/1957 cut-off events. [2023-08-31 20:18:01,648 INFO L131 PetriNetUnfolder]: For 1504/1526 co-relation queries the response was YES. [2023-08-31 20:18:01,651 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5864 conditions, 1957 events. 792/1957 cut-off events. For 1504/1526 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 11258 event pairs, 296 based on Foata normal form. 4/1932 useless extension candidates. Maximal degree in co-relation 5851. Up to 1323 conditions per place. [2023-08-31 20:18:01,657 INFO L137 encePairwiseOnDemand]: 433/447 looper letters, 237 selfloop transitions, 64 changer transitions 2/335 dead transitions. [2023-08-31 20:18:01,657 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 335 transitions, 2311 flow [2023-08-31 20:18:01,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-08-31 20:18:01,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-08-31 20:18:01,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2785 transitions. [2023-08-31 20:18:01,662 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4153616703952274 [2023-08-31 20:18:01,662 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2785 transitions. [2023-08-31 20:18:01,662 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2785 transitions. [2023-08-31 20:18:01,663 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:18:01,663 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2785 transitions. [2023-08-31 20:18:01,668 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 185.66666666666666) internal successors, (2785), 15 states have internal predecessors, (2785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:18:01,674 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 447.0) internal successors, (7152), 16 states have internal predecessors, (7152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:18:01,675 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 447.0) internal successors, (7152), 16 states have internal predecessors, (7152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:18:01,675 INFO L175 Difference]: Start difference. First operand has 85 places, 171 transitions, 913 flow. Second operand 15 states and 2785 transitions. [2023-08-31 20:18:01,675 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 335 transitions, 2311 flow [2023-08-31 20:18:01,682 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 335 transitions, 2293 flow, removed 9 selfloop flow, removed 0 redundant places. [2023-08-31 20:18:01,688 INFO L231 Difference]: Finished difference. Result has 104 places, 203 transitions, 1299 flow [2023-08-31 20:18:01,688 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=447, PETRI_DIFFERENCE_MINUEND_FLOW=895, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=171, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=1299, PETRI_PLACES=104, PETRI_TRANSITIONS=203} [2023-08-31 20:18:01,690 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 23 predicate places. [2023-08-31 20:18:01,690 INFO L495 AbstractCegarLoop]: Abstraction has has 104 places, 203 transitions, 1299 flow [2023-08-31 20:18:01,690 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 174.1) internal successors, (1741), 10 states have internal predecessors, (1741), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:18:01,691 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:18:01,691 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:18:01,691 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-31 20:18:01,691 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-31 20:18:01,691 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:18:01,691 INFO L85 PathProgramCache]: Analyzing trace with hash 1371662751, now seen corresponding path program 1 times [2023-08-31 20:18:01,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:18:01,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782725879] [2023-08-31 20:18:01,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:18:01,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:18:01,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:18:02,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:18:02,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:18:02,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782725879] [2023-08-31 20:18:02,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [782725879] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:18:02,299 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:18:02,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-31 20:18:02,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546747092] [2023-08-31 20:18:02,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:18:02,300 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-31 20:18:02,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:18:02,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-31 20:18:02,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-08-31 20:18:02,859 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 447 [2023-08-31 20:18:02,860 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 203 transitions, 1299 flow. Second operand has 10 states, 10 states have (on average 173.1) internal successors, (1731), 10 states have internal predecessors, (1731), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:18:02,861 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:18:02,861 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 447 [2023-08-31 20:18:02,861 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:18:04,983 INFO L130 PetriNetUnfolder]: 632/1690 cut-off events. [2023-08-31 20:18:04,983 INFO L131 PetriNetUnfolder]: For 1728/1750 co-relation queries the response was YES. [2023-08-31 20:18:04,987 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5525 conditions, 1690 events. 632/1690 cut-off events. For 1728/1750 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 10180 event pairs, 26 based on Foata normal form. 5/1672 useless extension candidates. Maximal degree in co-relation 5506. Up to 691 conditions per place. [2023-08-31 20:18:04,991 INFO L137 encePairwiseOnDemand]: 417/447 looper letters, 175 selfloop transitions, 104 changer transitions 0/317 dead transitions. [2023-08-31 20:18:04,991 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 317 transitions, 2389 flow [2023-08-31 20:18:04,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-31 20:18:04,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-31 20:18:04,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 2103 transitions. [2023-08-31 20:18:04,995 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42769981696156195 [2023-08-31 20:18:04,995 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 2103 transitions. [2023-08-31 20:18:04,995 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 2103 transitions. [2023-08-31 20:18:04,996 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:18:04,996 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 2103 transitions. [2023-08-31 20:18:04,999 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 191.1818181818182) internal successors, (2103), 11 states have internal predecessors, (2103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:18:05,003 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 447.0) internal successors, (5364), 12 states have internal predecessors, (5364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:18:05,004 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 447.0) internal successors, (5364), 12 states have internal predecessors, (5364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:18:05,004 INFO L175 Difference]: Start difference. First operand has 104 places, 203 transitions, 1299 flow. Second operand 11 states and 2103 transitions. [2023-08-31 20:18:05,004 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 317 transitions, 2389 flow [2023-08-31 20:18:05,011 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 317 transitions, 2383 flow, removed 3 selfloop flow, removed 0 redundant places. [2023-08-31 20:18:05,015 INFO L231 Difference]: Finished difference. Result has 119 places, 225 transitions, 1888 flow [2023-08-31 20:18:05,015 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=447, PETRI_DIFFERENCE_MINUEND_FLOW=1293, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=203, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=86, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1888, PETRI_PLACES=119, PETRI_TRANSITIONS=225} [2023-08-31 20:18:05,017 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 38 predicate places. [2023-08-31 20:18:05,017 INFO L495 AbstractCegarLoop]: Abstraction has has 119 places, 225 transitions, 1888 flow [2023-08-31 20:18:05,018 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 173.1) internal successors, (1731), 10 states have internal predecessors, (1731), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:18:05,018 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:18:05,018 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:18:05,018 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-31 20:18:05,018 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-31 20:18:05,019 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:18:05,019 INFO L85 PathProgramCache]: Analyzing trace with hash 932939411, now seen corresponding path program 2 times [2023-08-31 20:18:05,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:18:05,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850638766] [2023-08-31 20:18:05,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:18:05,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:18:05,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:18:05,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:18:05,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:18:05,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850638766] [2023-08-31 20:18:05,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1850638766] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:18:05,433 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:18:05,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-31 20:18:05,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029449692] [2023-08-31 20:18:05,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:18:05,434 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-31 20:18:05,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:18:05,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-31 20:18:05,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-08-31 20:18:05,908 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 447 [2023-08-31 20:18:05,910 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 225 transitions, 1888 flow. Second operand has 10 states, 10 states have (on average 172.1) internal successors, (1721), 10 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) [2023-08-31 20:18:05,910 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:18:05,910 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 447 [2023-08-31 20:18:05,910 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:18:07,583 INFO L130 PetriNetUnfolder]: 697/1824 cut-off events. [2023-08-31 20:18:07,583 INFO L131 PetriNetUnfolder]: For 4034/4062 co-relation queries the response was YES. [2023-08-31 20:18:07,589 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7104 conditions, 1824 events. 697/1824 cut-off events. For 4034/4062 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 11012 event pairs, 67 based on Foata normal form. 26/1823 useless extension candidates. Maximal degree in co-relation 7079. Up to 533 conditions per place. [2023-08-31 20:18:07,594 INFO L137 encePairwiseOnDemand]: 422/447 looper letters, 329 selfloop transitions, 93 changer transitions 3/463 dead transitions. [2023-08-31 20:18:07,594 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 463 transitions, 4138 flow [2023-08-31 20:18:07,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-08-31 20:18:07,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-08-31 20:18:07,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 3370 transitions. [2023-08-31 20:18:07,603 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41884166045239873 [2023-08-31 20:18:07,604 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 3370 transitions. [2023-08-31 20:18:07,604 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 3370 transitions. [2023-08-31 20:18:07,605 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:18:07,605 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 3370 transitions. [2023-08-31 20:18:07,610 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 187.22222222222223) internal successors, (3370), 18 states have internal predecessors, (3370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:18:07,616 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 447.0) internal successors, (8493), 19 states have internal predecessors, (8493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:18:07,617 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 447.0) internal successors, (8493), 19 states have internal predecessors, (8493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:18:07,618 INFO L175 Difference]: Start difference. First operand has 119 places, 225 transitions, 1888 flow. Second operand 18 states and 3370 transitions. [2023-08-31 20:18:07,618 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 463 transitions, 4138 flow [2023-08-31 20:18:07,630 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 463 transitions, 4128 flow, removed 1 selfloop flow, removed 2 redundant places. [2023-08-31 20:18:07,634 INFO L231 Difference]: Finished difference. Result has 140 places, 263 transitions, 2535 flow [2023-08-31 20:18:07,634 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=447, PETRI_DIFFERENCE_MINUEND_FLOW=1878, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=225, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=55, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=148, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=2535, PETRI_PLACES=140, PETRI_TRANSITIONS=263} [2023-08-31 20:18:07,634 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 59 predicate places. [2023-08-31 20:18:07,635 INFO L495 AbstractCegarLoop]: Abstraction has has 140 places, 263 transitions, 2535 flow [2023-08-31 20:18:07,635 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 172.1) internal successors, (1721), 10 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) [2023-08-31 20:18:07,635 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:18:07,635 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:18:07,635 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-31 20:18:07,636 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-31 20:18:07,636 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:18:07,636 INFO L85 PathProgramCache]: Analyzing trace with hash 1098327645, now seen corresponding path program 3 times [2023-08-31 20:18:07,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:18:07,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941475517] [2023-08-31 20:18:07,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:18:07,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:18:07,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:18:08,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:18:08,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:18:08,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941475517] [2023-08-31 20:18:08,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941475517] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:18:08,059 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:18:08,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-31 20:18:08,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093330015] [2023-08-31 20:18:08,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:18:08,059 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-31 20:18:08,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:18:08,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-31 20:18:08,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-08-31 20:18:08,514 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 447 [2023-08-31 20:18:08,516 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 263 transitions, 2535 flow. Second operand has 10 states, 10 states have (on average 172.1) internal successors, (1721), 10 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) [2023-08-31 20:18:08,516 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:18:08,516 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 447 [2023-08-31 20:18:08,516 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:18:10,044 INFO L130 PetriNetUnfolder]: 880/2319 cut-off events. [2023-08-31 20:18:10,045 INFO L131 PetriNetUnfolder]: For 8091/8131 co-relation queries the response was YES. [2023-08-31 20:18:10,051 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10085 conditions, 2319 events. 880/2319 cut-off events. For 8091/8131 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 15357 event pairs, 99 based on Foata normal form. 25/2312 useless extension candidates. Maximal degree in co-relation 10055. Up to 738 conditions per place. [2023-08-31 20:18:10,059 INFO L137 encePairwiseOnDemand]: 415/447 looper letters, 338 selfloop transitions, 153 changer transitions 3/532 dead transitions. [2023-08-31 20:18:10,059 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 156 places, 532 transitions, 5288 flow [2023-08-31 20:18:10,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-08-31 20:18:10,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-08-31 20:18:10,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 3256 transitions. [2023-08-31 20:18:10,065 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4284774312409528 [2023-08-31 20:18:10,065 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 3256 transitions. [2023-08-31 20:18:10,065 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 3256 transitions. [2023-08-31 20:18:10,066 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:18:10,067 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 3256 transitions. [2023-08-31 20:18:10,071 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 191.52941176470588) internal successors, (3256), 17 states have internal predecessors, (3256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:18:10,077 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 447.0) internal successors, (8046), 18 states have internal predecessors, (8046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:18:10,078 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 447.0) internal successors, (8046), 18 states have internal predecessors, (8046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:18:10,078 INFO L175 Difference]: Start difference. First operand has 140 places, 263 transitions, 2535 flow. Second operand 17 states and 3256 transitions. [2023-08-31 20:18:10,078 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 156 places, 532 transitions, 5288 flow [2023-08-31 20:18:10,101 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 532 transitions, 5275 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-31 20:18:10,106 INFO L231 Difference]: Finished difference. Result has 164 places, 320 transitions, 3881 flow [2023-08-31 20:18:10,106 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=447, PETRI_DIFFERENCE_MINUEND_FLOW=2527, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=263, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=96, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=132, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=3881, PETRI_PLACES=164, PETRI_TRANSITIONS=320} [2023-08-31 20:18:10,107 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 83 predicate places. [2023-08-31 20:18:10,107 INFO L495 AbstractCegarLoop]: Abstraction has has 164 places, 320 transitions, 3881 flow [2023-08-31 20:18:10,108 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 172.1) internal successors, (1721), 10 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) [2023-08-31 20:18:10,108 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:18:10,108 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:18:10,108 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-31 20:18:10,108 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-31 20:18:10,108 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:18:10,108 INFO L85 PathProgramCache]: Analyzing trace with hash -869727405, now seen corresponding path program 4 times [2023-08-31 20:18:10,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:18:10,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987555298] [2023-08-31 20:18:10,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:18:10,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:18:10,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:18:10,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:18:10,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:18:10,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987555298] [2023-08-31 20:18:10,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1987555298] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:18:10,566 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:18:10,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-31 20:18:10,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823602635] [2023-08-31 20:18:10,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:18:10,566 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-31 20:18:10,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:18:10,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-31 20:18:10,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-08-31 20:18:11,167 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 447 [2023-08-31 20:18:11,168 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 164 places, 320 transitions, 3881 flow. Second operand has 10 states, 10 states have (on average 172.1) internal successors, (1721), 10 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) [2023-08-31 20:18:11,168 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:18:11,168 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 447 [2023-08-31 20:18:11,168 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:18:12,556 INFO L130 PetriNetUnfolder]: 1172/3145 cut-off events. [2023-08-31 20:18:12,556 INFO L131 PetriNetUnfolder]: For 16596/16715 co-relation queries the response was YES. [2023-08-31 20:18:12,565 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14873 conditions, 3145 events. 1172/3145 cut-off events. For 16596/16715 co-relation queries the response was YES. Maximal size of possible extension queue 111. Compared 23383 event pairs, 144 based on Foata normal form. 64/3164 useless extension candidates. Maximal degree in co-relation 14831. Up to 902 conditions per place. [2023-08-31 20:18:12,575 INFO L137 encePairwiseOnDemand]: 415/447 looper letters, 334 selfloop transitions, 206 changer transitions 2/580 dead transitions. [2023-08-31 20:18:12,575 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 580 transitions, 7101 flow [2023-08-31 20:18:12,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-31 20:18:12,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-31 20:18:12,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 2364 transitions. [2023-08-31 20:18:12,579 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4407158836689038 [2023-08-31 20:18:12,579 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 2364 transitions. [2023-08-31 20:18:12,580 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 2364 transitions. [2023-08-31 20:18:12,581 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:18:12,581 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 2364 transitions. [2023-08-31 20:18:12,584 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 197.0) internal successors, (2364), 12 states have internal predecessors, (2364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:18:12,588 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 447.0) internal successors, (5811), 13 states have internal predecessors, (5811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:18:12,588 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 447.0) internal successors, (5811), 13 states have internal predecessors, (5811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:18:12,588 INFO L175 Difference]: Start difference. First operand has 164 places, 320 transitions, 3881 flow. Second operand 12 states and 2364 transitions. [2023-08-31 20:18:12,589 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 580 transitions, 7101 flow [2023-08-31 20:18:12,640 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 171 places, 580 transitions, 7043 flow, removed 20 selfloop flow, removed 4 redundant places. [2023-08-31 20:18:12,645 INFO L231 Difference]: Finished difference. Result has 181 places, 394 transitions, 5824 flow [2023-08-31 20:18:12,646 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=447, PETRI_DIFFERENCE_MINUEND_FLOW=3847, PETRI_DIFFERENCE_MINUEND_PLACES=160, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=320, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=132, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=5824, PETRI_PLACES=181, PETRI_TRANSITIONS=394} [2023-08-31 20:18:12,646 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 100 predicate places. [2023-08-31 20:18:12,646 INFO L495 AbstractCegarLoop]: Abstraction has has 181 places, 394 transitions, 5824 flow [2023-08-31 20:18:12,647 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 172.1) internal successors, (1721), 10 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) [2023-08-31 20:18:12,647 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:18:12,647 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:18:12,647 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-31 20:18:12,647 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-31 20:18:12,648 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:18:12,648 INFO L85 PathProgramCache]: Analyzing trace with hash -740616625, now seen corresponding path program 5 times [2023-08-31 20:18:12,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:18:12,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572521969] [2023-08-31 20:18:12,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:18:12,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:18:12,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:18:13,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:18:13,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:18:13,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572521969] [2023-08-31 20:18:13,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [572521969] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:18:13,049 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:18:13,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-31 20:18:13,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413123610] [2023-08-31 20:18:13,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:18:13,051 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-31 20:18:13,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:18:13,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-31 20:18:13,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-08-31 20:18:13,574 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 447 [2023-08-31 20:18:13,575 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 181 places, 394 transitions, 5824 flow. Second operand has 10 states, 10 states have (on average 172.1) internal successors, (1721), 10 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) [2023-08-31 20:18:13,575 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:18:13,575 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 447 [2023-08-31 20:18:13,575 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:18:15,852 INFO L130 PetriNetUnfolder]: 1516/4057 cut-off events. [2023-08-31 20:18:15,852 INFO L131 PetriNetUnfolder]: For 31767/31914 co-relation queries the response was YES. [2023-08-31 20:18:15,866 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21156 conditions, 4057 events. 1516/4057 cut-off events. For 31767/31914 co-relation queries the response was YES. Maximal size of possible extension queue 143. Compared 32063 event pairs, 182 based on Foata normal form. 108/4107 useless extension candidates. Maximal degree in co-relation 21105. Up to 965 conditions per place. [2023-08-31 20:18:15,877 INFO L137 encePairwiseOnDemand]: 415/447 looper letters, 457 selfloop transitions, 253 changer transitions 3/751 dead transitions. [2023-08-31 20:18:15,877 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 196 places, 751 transitions, 10742 flow [2023-08-31 20:18:15,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-08-31 20:18:15,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-08-31 20:18:15,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 3078 transitions. [2023-08-31 20:18:15,882 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4303691275167785 [2023-08-31 20:18:15,882 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 3078 transitions. [2023-08-31 20:18:15,882 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 3078 transitions. [2023-08-31 20:18:15,883 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:18:15,883 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 3078 transitions. [2023-08-31 20:18:15,887 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 192.375) internal successors, (3078), 16 states have internal predecessors, (3078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:18:15,891 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 447.0) internal successors, (7599), 17 states have internal predecessors, (7599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:18:15,892 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 447.0) internal successors, (7599), 17 states have internal predecessors, (7599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:18:15,892 INFO L175 Difference]: Start difference. First operand has 181 places, 394 transitions, 5824 flow. Second operand 16 states and 3078 transitions. [2023-08-31 20:18:15,892 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 196 places, 751 transitions, 10742 flow [2023-08-31 20:18:16,009 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 196 places, 751 transitions, 10682 flow, removed 30 selfloop flow, removed 0 redundant places. [2023-08-31 20:18:16,017 INFO L231 Difference]: Finished difference. Result has 206 places, 488 transitions, 8496 flow [2023-08-31 20:18:16,017 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=447, PETRI_DIFFERENCE_MINUEND_FLOW=5774, PETRI_DIFFERENCE_MINUEND_PLACES=181, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=394, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=171, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=171, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=8496, PETRI_PLACES=206, PETRI_TRANSITIONS=488} [2023-08-31 20:18:16,018 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 125 predicate places. [2023-08-31 20:18:16,018 INFO L495 AbstractCegarLoop]: Abstraction has has 206 places, 488 transitions, 8496 flow [2023-08-31 20:18:16,018 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 172.1) internal successors, (1721), 10 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) [2023-08-31 20:18:16,018 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:18:16,019 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:18:16,019 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-31 20:18:16,019 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-31 20:18:16,019 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:18:16,019 INFO L85 PathProgramCache]: Analyzing trace with hash -560006715, now seen corresponding path program 6 times [2023-08-31 20:18:16,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:18:16,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713498343] [2023-08-31 20:18:16,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:18:16,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:18:16,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:18:16,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:18:16,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:18:16,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713498343] [2023-08-31 20:18:16,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713498343] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:18:16,396 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:18:16,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-31 20:18:16,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808243850] [2023-08-31 20:18:16,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:18:16,396 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-31 20:18:16,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:18:16,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-31 20:18:16,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-08-31 20:18:16,971 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 447 [2023-08-31 20:18:16,972 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 206 places, 488 transitions, 8496 flow. Second operand has 10 states, 10 states have (on average 172.1) internal successors, (1721), 10 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) [2023-08-31 20:18:16,972 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:18:16,972 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 447 [2023-08-31 20:18:16,972 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:18:19,540 INFO L130 PetriNetUnfolder]: 1842/4886 cut-off events. [2023-08-31 20:18:19,540 INFO L131 PetriNetUnfolder]: For 52205/52379 co-relation queries the response was YES. [2023-08-31 20:18:19,560 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27722 conditions, 4886 events. 1842/4886 cut-off events. For 52205/52379 co-relation queries the response was YES. Maximal size of possible extension queue 183. Compared 40579 event pairs, 300 based on Foata normal form. 99/4918 useless extension candidates. Maximal degree in co-relation 27660. Up to 1294 conditions per place. [2023-08-31 20:18:19,572 INFO L137 encePairwiseOnDemand]: 415/447 looper letters, 428 selfloop transitions, 316 changer transitions 2/784 dead transitions. [2023-08-31 20:18:19,572 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 219 places, 784 transitions, 13092 flow [2023-08-31 20:18:19,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-31 20:18:19,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-31 20:18:19,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2728 transitions. [2023-08-31 20:18:19,575 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43592201981463724 [2023-08-31 20:18:19,575 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2728 transitions. [2023-08-31 20:18:19,575 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2728 transitions. [2023-08-31 20:18:19,576 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:18:19,576 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2728 transitions. [2023-08-31 20:18:19,578 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 194.85714285714286) internal successors, (2728), 14 states have internal predecessors, (2728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:18:19,582 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 447.0) internal successors, (6705), 15 states have internal predecessors, (6705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:18:19,583 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 447.0) internal successors, (6705), 15 states have internal predecessors, (6705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:18:19,583 INFO L175 Difference]: Start difference. First operand has 206 places, 488 transitions, 8496 flow. Second operand 14 states and 2728 transitions. [2023-08-31 20:18:19,583 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 219 places, 784 transitions, 13092 flow [2023-08-31 20:18:19,799 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 216 places, 784 transitions, 13056 flow, removed 11 selfloop flow, removed 3 redundant places. [2023-08-31 20:18:19,808 INFO L231 Difference]: Finished difference. Result has 228 places, 570 transitions, 11485 flow [2023-08-31 20:18:19,809 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=447, PETRI_DIFFERENCE_MINUEND_FLOW=8471, PETRI_DIFFERENCE_MINUEND_PLACES=203, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=488, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=235, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=201, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=11485, PETRI_PLACES=228, PETRI_TRANSITIONS=570} [2023-08-31 20:18:19,809 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 147 predicate places. [2023-08-31 20:18:19,809 INFO L495 AbstractCegarLoop]: Abstraction has has 228 places, 570 transitions, 11485 flow [2023-08-31 20:18:19,809 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 172.1) internal successors, (1721), 10 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) [2023-08-31 20:18:19,810 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:18:19,810 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:18:19,810 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-31 20:18:19,810 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-31 20:18:19,810 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:18:19,810 INFO L85 PathProgramCache]: Analyzing trace with hash 1713013715, now seen corresponding path program 7 times [2023-08-31 20:18:19,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:18:19,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363326541] [2023-08-31 20:18:19,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:18:19,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:18:19,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:18:20,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:18:20,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:18:20,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363326541] [2023-08-31 20:18:20,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1363326541] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:18:20,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:18:20,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-31 20:18:20,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005867862] [2023-08-31 20:18:20,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:18:20,197 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-31 20:18:20,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:18:20,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-31 20:18:20,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-08-31 20:18:20,758 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 447 [2023-08-31 20:18:20,759 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 228 places, 570 transitions, 11485 flow. Second operand has 10 states, 10 states have (on average 172.1) internal successors, (1721), 10 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) [2023-08-31 20:18:20,759 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:18:20,759 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 447 [2023-08-31 20:18:20,759 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:18:23,831 INFO L130 PetriNetUnfolder]: 2057/5564 cut-off events. [2023-08-31 20:18:23,831 INFO L131 PetriNetUnfolder]: For 75990/76189 co-relation queries the response was YES. [2023-08-31 20:18:23,857 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33663 conditions, 5564 events. 2057/5564 cut-off events. For 75990/76189 co-relation queries the response was YES. Maximal size of possible extension queue 208. Compared 48245 event pairs, 248 based on Foata normal form. 136/5623 useless extension candidates. Maximal degree in co-relation 33590. Up to 1388 conditions per place. [2023-08-31 20:18:23,871 INFO L137 encePairwiseOnDemand]: 415/447 looper letters, 486 selfloop transitions, 365 changer transitions 3/892 dead transitions. [2023-08-31 20:18:23,872 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 244 places, 892 transitions, 16634 flow [2023-08-31 20:18:23,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-08-31 20:18:23,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-08-31 20:18:23,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 3264 transitions. [2023-08-31 20:18:23,879 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42953020134228187 [2023-08-31 20:18:23,879 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 3264 transitions. [2023-08-31 20:18:23,880 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 3264 transitions. [2023-08-31 20:18:23,880 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:18:23,880 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 3264 transitions. [2023-08-31 20:18:23,883 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 192.0) internal successors, (3264), 17 states have internal predecessors, (3264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:18:23,887 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 447.0) internal successors, (8046), 18 states have internal predecessors, (8046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:18:23,888 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 447.0) internal successors, (8046), 18 states have internal predecessors, (8046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:18:23,888 INFO L175 Difference]: Start difference. First operand has 228 places, 570 transitions, 11485 flow. Second operand 17 states and 3264 transitions. [2023-08-31 20:18:23,888 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 244 places, 892 transitions, 16634 flow [2023-08-31 20:18:24,230 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 243 places, 892 transitions, 16567 flow, removed 24 selfloop flow, removed 1 redundant places. [2023-08-31 20:18:24,242 INFO L231 Difference]: Finished difference. Result has 254 places, 639 transitions, 14509 flow [2023-08-31 20:18:24,242 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=447, PETRI_DIFFERENCE_MINUEND_FLOW=11430, PETRI_DIFFERENCE_MINUEND_PLACES=227, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=570, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=296, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=218, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=14509, PETRI_PLACES=254, PETRI_TRANSITIONS=639} [2023-08-31 20:18:24,243 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 173 predicate places. [2023-08-31 20:18:24,243 INFO L495 AbstractCegarLoop]: Abstraction has has 254 places, 639 transitions, 14509 flow [2023-08-31 20:18:24,243 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 172.1) internal successors, (1721), 10 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) [2023-08-31 20:18:24,243 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:18:24,243 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:18:24,244 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-31 20:18:24,244 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-31 20:18:24,244 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:18:24,244 INFO L85 PathProgramCache]: Analyzing trace with hash -1012230573, now seen corresponding path program 8 times [2023-08-31 20:18:24,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:18:24,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081311213] [2023-08-31 20:18:24,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:18:24,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:18:24,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:18:24,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:18:24,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:18:24,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081311213] [2023-08-31 20:18:24,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2081311213] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:18:24,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:18:24,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-31 20:18:24,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066957908] [2023-08-31 20:18:24,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:18:24,682 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-31 20:18:24,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:18:24,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-31 20:18:24,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-08-31 20:18:25,280 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 447 [2023-08-31 20:18:25,281 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 254 places, 639 transitions, 14509 flow. Second operand has 10 states, 10 states have (on average 172.1) internal successors, (1721), 10 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) [2023-08-31 20:18:25,281 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:18:25,281 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 447 [2023-08-31 20:18:25,281 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:18:28,535 INFO L130 PetriNetUnfolder]: 2475/6633 cut-off events. [2023-08-31 20:18:28,535 INFO L131 PetriNetUnfolder]: For 117794/118007 co-relation queries the response was YES. [2023-08-31 20:18:28,580 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43300 conditions, 6633 events. 2475/6633 cut-off events. For 117794/118007 co-relation queries the response was YES. Maximal size of possible extension queue 253. Compared 59793 event pairs, 325 based on Foata normal form. 136/6686 useless extension candidates. Maximal degree in co-relation 43216. Up to 1508 conditions per place. [2023-08-31 20:18:28,604 INFO L137 encePairwiseOnDemand]: 415/447 looper letters, 519 selfloop transitions, 413 changer transitions 2/972 dead transitions. [2023-08-31 20:18:28,604 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 267 places, 972 transitions, 20851 flow [2023-08-31 20:18:28,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-31 20:18:28,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-31 20:18:28,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2716 transitions. [2023-08-31 20:18:28,608 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43400447427293065 [2023-08-31 20:18:28,608 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2716 transitions. [2023-08-31 20:18:28,608 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2716 transitions. [2023-08-31 20:18:28,609 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:18:28,609 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2716 transitions. [2023-08-31 20:18:28,611 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 194.0) internal successors, (2716), 14 states have internal predecessors, (2716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:18:28,615 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 447.0) internal successors, (6705), 15 states have internal predecessors, (6705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:18:28,615 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 447.0) internal successors, (6705), 15 states have internal predecessors, (6705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:18:28,616 INFO L175 Difference]: Start difference. First operand has 254 places, 639 transitions, 14509 flow. Second operand 14 states and 2716 transitions. [2023-08-31 20:18:28,616 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 267 places, 972 transitions, 20851 flow [2023-08-31 20:18:29,485 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 262 places, 972 transitions, 20771 flow, removed 29 selfloop flow, removed 5 redundant places. [2023-08-31 20:18:29,499 INFO L231 Difference]: Finished difference. Result has 274 places, 737 transitions, 18678 flow [2023-08-31 20:18:29,500 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=447, PETRI_DIFFERENCE_MINUEND_FLOW=14443, PETRI_DIFFERENCE_MINUEND_PLACES=249, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=639, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=320, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=259, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=18678, PETRI_PLACES=274, PETRI_TRANSITIONS=737} [2023-08-31 20:18:29,500 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 193 predicate places. [2023-08-31 20:18:29,500 INFO L495 AbstractCegarLoop]: Abstraction has has 274 places, 737 transitions, 18678 flow [2023-08-31 20:18:29,501 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 172.1) internal successors, (1721), 10 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) [2023-08-31 20:18:29,501 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:18:29,501 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:18:29,501 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-31 20:18:29,501 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-31 20:18:29,502 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:18:29,502 INFO L85 PathProgramCache]: Analyzing trace with hash 1332284735, now seen corresponding path program 9 times [2023-08-31 20:18:29,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:18:29,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922729391] [2023-08-31 20:18:29,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:18:29,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:18:29,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:18:30,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:18:30,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:18:30,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922729391] [2023-08-31 20:18:30,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1922729391] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:18:30,063 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:18:30,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-31 20:18:30,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713828768] [2023-08-31 20:18:30,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:18:30,063 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-31 20:18:30,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:18:30,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-31 20:18:30,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-08-31 20:18:30,609 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 447 [2023-08-31 20:18:30,610 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 274 places, 737 transitions, 18678 flow. Second operand has 10 states, 10 states have (on average 173.1) internal successors, (1731), 10 states have internal predecessors, (1731), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:18:30,610 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:18:30,610 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 447 [2023-08-31 20:18:30,610 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:18:33,688 INFO L130 PetriNetUnfolder]: 2506/6722 cut-off events. [2023-08-31 20:18:33,689 INFO L131 PetriNetUnfolder]: For 147548/147776 co-relation queries the response was YES. [2023-08-31 20:18:33,727 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46950 conditions, 6722 events. 2506/6722 cut-off events. For 147548/147776 co-relation queries the response was YES. Maximal size of possible extension queue 258. Compared 60946 event pairs, 323 based on Foata normal form. 124/6772 useless extension candidates. Maximal degree in co-relation 46855. Up to 2981 conditions per place. [2023-08-31 20:18:33,745 INFO L137 encePairwiseOnDemand]: 417/447 looper letters, 407 selfloop transitions, 420 changer transitions 0/865 dead transitions. [2023-08-31 20:18:33,745 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 284 places, 865 transitions, 21876 flow [2023-08-31 20:18:33,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-31 20:18:33,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-31 20:18:33,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 2106 transitions. [2023-08-31 20:18:33,751 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4283099450884686 [2023-08-31 20:18:33,751 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 2106 transitions. [2023-08-31 20:18:33,751 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 2106 transitions. [2023-08-31 20:18:33,751 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:18:33,751 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 2106 transitions. [2023-08-31 20:18:33,781 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 191.45454545454547) internal successors, (2106), 11 states have internal predecessors, (2106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:18:33,783 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 447.0) internal successors, (5364), 12 states have internal predecessors, (5364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:18:33,783 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 447.0) internal successors, (5364), 12 states have internal predecessors, (5364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:18:33,783 INFO L175 Difference]: Start difference. First operand has 274 places, 737 transitions, 18678 flow. Second operand 11 states and 2106 transitions. [2023-08-31 20:18:33,784 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 284 places, 865 transitions, 21876 flow [2023-08-31 20:18:34,788 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 284 places, 865 transitions, 21788 flow, removed 44 selfloop flow, removed 0 redundant places. [2023-08-31 20:18:34,803 INFO L231 Difference]: Finished difference. Result has 289 places, 756 transitions, 20630 flow [2023-08-31 20:18:34,804 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=447, PETRI_DIFFERENCE_MINUEND_FLOW=18602, PETRI_DIFFERENCE_MINUEND_PLACES=274, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=737, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=402, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=323, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=20630, PETRI_PLACES=289, PETRI_TRANSITIONS=756} [2023-08-31 20:18:34,804 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 208 predicate places. [2023-08-31 20:18:34,804 INFO L495 AbstractCegarLoop]: Abstraction has has 289 places, 756 transitions, 20630 flow [2023-08-31 20:18:34,805 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 173.1) internal successors, (1731), 10 states have internal predecessors, (1731), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:18:34,805 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:18:34,805 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:18:34,805 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-31 20:18:34,805 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-31 20:18:34,805 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:18:34,806 INFO L85 PathProgramCache]: Analyzing trace with hash -1575505595, now seen corresponding path program 10 times [2023-08-31 20:18:34,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:18:34,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370476471] [2023-08-31 20:18:34,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:18:34,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:18:34,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:18:35,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:18:35,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:18:35,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370476471] [2023-08-31 20:18:35,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1370476471] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:18:35,282 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:18:35,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-31 20:18:35,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662893079] [2023-08-31 20:18:35,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:18:35,282 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-31 20:18:35,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:18:35,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-31 20:18:35,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-08-31 20:18:35,970 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 447 [2023-08-31 20:18:35,971 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 289 places, 756 transitions, 20630 flow. Second operand has 10 states, 10 states have (on average 172.1) internal successors, (1721), 10 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) [2023-08-31 20:18:35,971 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:18:35,971 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 447 [2023-08-31 20:18:35,971 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:18:39,427 INFO L130 PetriNetUnfolder]: 2859/7681 cut-off events. [2023-08-31 20:18:39,427 INFO L131 PetriNetUnfolder]: For 198617/198930 co-relation queries the response was YES. [2023-08-31 20:18:39,476 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55946 conditions, 7681 events. 2859/7681 cut-off events. For 198617/198930 co-relation queries the response was YES. Maximal size of possible extension queue 299. Compared 71693 event pairs, 436 based on Foata normal form. 210/7798 useless extension candidates. Maximal degree in co-relation 55845. Up to 1905 conditions per place. [2023-08-31 20:18:39,499 INFO L137 encePairwiseOnDemand]: 415/447 looper letters, 600 selfloop transitions, 458 changer transitions 2/1098 dead transitions. [2023-08-31 20:18:39,499 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 302 places, 1098 transitions, 28104 flow [2023-08-31 20:18:39,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-31 20:18:39,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-31 20:18:39,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2703 transitions. [2023-08-31 20:18:39,502 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4319271332694152 [2023-08-31 20:18:39,502 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2703 transitions. [2023-08-31 20:18:39,502 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2703 transitions. [2023-08-31 20:18:39,502 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:18:39,502 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2703 transitions. [2023-08-31 20:18:39,505 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 193.07142857142858) internal successors, (2703), 14 states have internal predecessors, (2703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:18:39,507 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 447.0) internal successors, (6705), 15 states have internal predecessors, (6705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:18:39,508 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 447.0) internal successors, (6705), 15 states have internal predecessors, (6705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:18:39,508 INFO L175 Difference]: Start difference. First operand has 289 places, 756 transitions, 20630 flow. Second operand 14 states and 2703 transitions. [2023-08-31 20:18:39,508 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 302 places, 1098 transitions, 28104 flow [2023-08-31 20:18:40,733 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 297 places, 1098 transitions, 27851 flow, removed 12 selfloop flow, removed 5 redundant places. [2023-08-31 20:18:40,749 INFO L231 Difference]: Finished difference. Result has 309 places, 849 transitions, 25182 flow [2023-08-31 20:18:40,750 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=447, PETRI_DIFFERENCE_MINUEND_FLOW=20431, PETRI_DIFFERENCE_MINUEND_PLACES=284, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=756, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=369, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=327, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=25182, PETRI_PLACES=309, PETRI_TRANSITIONS=849} [2023-08-31 20:18:40,750 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 228 predicate places. [2023-08-31 20:18:40,750 INFO L495 AbstractCegarLoop]: Abstraction has has 309 places, 849 transitions, 25182 flow [2023-08-31 20:18:40,751 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 172.1) internal successors, (1721), 10 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) [2023-08-31 20:18:40,751 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:18:40,751 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:18:40,751 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-08-31 20:18:40,751 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-31 20:18:40,751 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:18:40,751 INFO L85 PathProgramCache]: Analyzing trace with hash -1402386963, now seen corresponding path program 11 times [2023-08-31 20:18:40,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:18:40,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528764848] [2023-08-31 20:18:40,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:18:40,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:18:40,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:18:41,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:18:41,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:18:41,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528764848] [2023-08-31 20:18:41,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [528764848] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:18:41,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:18:41,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-31 20:18:41,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767415237] [2023-08-31 20:18:41,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:18:41,090 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-31 20:18:41,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:18:41,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-31 20:18:41,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-08-31 20:18:41,604 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 447 [2023-08-31 20:18:41,605 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 309 places, 849 transitions, 25182 flow. Second operand has 10 states, 10 states have (on average 172.1) internal successors, (1721), 10 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) [2023-08-31 20:18:41,605 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:18:41,605 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 447 [2023-08-31 20:18:41,605 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:18:45,574 INFO L130 PetriNetUnfolder]: 3037/8128 cut-off events. [2023-08-31 20:18:45,574 INFO L131 PetriNetUnfolder]: For 247947/248303 co-relation queries the response was YES. [2023-08-31 20:18:45,626 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62492 conditions, 8128 events. 3037/8128 cut-off events. For 247947/248303 co-relation queries the response was YES. Maximal size of possible extension queue 323. Compared 76773 event pairs, 354 based on Foata normal form. 222/8258 useless extension candidates. Maximal degree in co-relation 62380. Up to 2533 conditions per place. [2023-08-31 20:18:45,649 INFO L137 encePairwiseOnDemand]: 417/447 looper letters, 471 selfloop transitions, 579 changer transitions 2/1090 dead transitions. [2023-08-31 20:18:45,649 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 321 places, 1090 transitions, 30716 flow [2023-08-31 20:18:45,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-08-31 20:18:45,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-08-31 20:18:45,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2507 transitions. [2023-08-31 20:18:45,651 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4314231629667871 [2023-08-31 20:18:45,651 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2507 transitions. [2023-08-31 20:18:45,651 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2507 transitions. [2023-08-31 20:18:45,652 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:18:45,652 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2507 transitions. [2023-08-31 20:18:45,654 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 192.84615384615384) internal successors, (2507), 13 states have internal predecessors, (2507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:18:45,657 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 447.0) internal successors, (6258), 14 states have internal predecessors, (6258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:18:45,657 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 447.0) internal successors, (6258), 14 states have internal predecessors, (6258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:18:45,657 INFO L175 Difference]: Start difference. First operand has 309 places, 849 transitions, 25182 flow. Second operand 13 states and 2507 transitions. [2023-08-31 20:18:45,657 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 321 places, 1090 transitions, 30716 flow [2023-08-31 20:18:47,212 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 321 places, 1090 transitions, 30614 flow, removed 51 selfloop flow, removed 0 redundant places. [2023-08-31 20:18:47,231 INFO L231 Difference]: Finished difference. Result has 332 places, 901 transitions, 29242 flow [2023-08-31 20:18:47,231 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=447, PETRI_DIFFERENCE_MINUEND_FLOW=25098, PETRI_DIFFERENCE_MINUEND_PLACES=309, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=849, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=527, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=285, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=29242, PETRI_PLACES=332, PETRI_TRANSITIONS=901} [2023-08-31 20:18:47,232 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 251 predicate places. [2023-08-31 20:18:47,232 INFO L495 AbstractCegarLoop]: Abstraction has has 332 places, 901 transitions, 29242 flow [2023-08-31 20:18:47,232 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 172.1) internal successors, (1721), 10 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) [2023-08-31 20:18:47,232 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:18:47,232 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:18:47,233 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-08-31 20:18:47,233 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-31 20:18:47,233 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:18:47,233 INFO L85 PathProgramCache]: Analyzing trace with hash -1428638313, now seen corresponding path program 12 times [2023-08-31 20:18:47,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:18:47,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534152385] [2023-08-31 20:18:47,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:18:47,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:18:47,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:18:47,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:18:47,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:18:47,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534152385] [2023-08-31 20:18:47,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [534152385] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:18:47,571 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:18:47,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-31 20:18:47,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314523388] [2023-08-31 20:18:47,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:18:47,571 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-31 20:18:47,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:18:47,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-31 20:18:47,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-08-31 20:18:48,373 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 447 [2023-08-31 20:18:48,374 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 332 places, 901 transitions, 29242 flow. Second operand has 10 states, 10 states have (on average 172.1) internal successors, (1721), 10 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) [2023-08-31 20:18:48,375 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:18:48,375 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 447 [2023-08-31 20:18:48,375 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:18:53,394 INFO L130 PetriNetUnfolder]: 3245/8734 cut-off events. [2023-08-31 20:18:53,394 INFO L131 PetriNetUnfolder]: For 321510/321894 co-relation queries the response was YES. [2023-08-31 20:18:53,537 INFO L83 FinitePrefix]: Finished finitePrefix Result has 70725 conditions, 8734 events. 3245/8734 cut-off events. For 321510/321894 co-relation queries the response was YES. Maximal size of possible extension queue 350. Compared 83998 event pairs, 402 based on Foata normal form. 244/8874 useless extension candidates. Maximal degree in co-relation 70602. Up to 2559 conditions per place. [2023-08-31 20:18:53,563 INFO L137 encePairwiseOnDemand]: 417/447 looper letters, 503 selfloop transitions, 607 changer transitions 2/1150 dead transitions. [2023-08-31 20:18:53,563 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 345 places, 1150 transitions, 35572 flow [2023-08-31 20:18:53,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-31 20:18:53,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-31 20:18:53,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2664 transitions. [2023-08-31 20:18:53,580 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42569511025886864 [2023-08-31 20:18:53,580 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2664 transitions. [2023-08-31 20:18:53,580 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2664 transitions. [2023-08-31 20:18:53,581 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:18:53,592 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2664 transitions. [2023-08-31 20:18:53,594 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 190.28571428571428) internal successors, (2664), 14 states have internal predecessors, (2664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:18:53,597 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 447.0) internal successors, (6705), 15 states have internal predecessors, (6705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:18:53,598 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 447.0) internal successors, (6705), 15 states have internal predecessors, (6705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:18:53,598 INFO L175 Difference]: Start difference. First operand has 332 places, 901 transitions, 29242 flow. Second operand 14 states and 2664 transitions. [2023-08-31 20:18:53,598 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 345 places, 1150 transitions, 35572 flow [2023-08-31 20:18:56,233 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 345 places, 1150 transitions, 35518 flow, removed 27 selfloop flow, removed 0 redundant places. [2023-08-31 20:18:56,254 INFO L231 Difference]: Finished difference. Result has 357 places, 962 transitions, 33990 flow [2023-08-31 20:18:56,254 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=447, PETRI_DIFFERENCE_MINUEND_FLOW=29188, PETRI_DIFFERENCE_MINUEND_PLACES=332, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=901, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=547, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=310, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=33990, PETRI_PLACES=357, PETRI_TRANSITIONS=962} [2023-08-31 20:18:56,260 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 276 predicate places. [2023-08-31 20:18:56,260 INFO L495 AbstractCegarLoop]: Abstraction has has 357 places, 962 transitions, 33990 flow [2023-08-31 20:18:56,260 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 172.1) internal successors, (1721), 10 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) [2023-08-31 20:18:56,260 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:18:56,264 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:18:56,264 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-08-31 20:18:56,265 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-31 20:18:56,265 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:18:56,265 INFO L85 PathProgramCache]: Analyzing trace with hash -1047909333, now seen corresponding path program 13 times [2023-08-31 20:18:56,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:18:56,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824566498] [2023-08-31 20:18:56,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:18:56,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:18:56,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:18:56,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:18:56,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:18:56,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824566498] [2023-08-31 20:18:56,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1824566498] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:18:56,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:18:56,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-31 20:18:56,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401282189] [2023-08-31 20:18:56,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:18:56,717 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-31 20:18:56,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:18:56,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-31 20:18:56,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-08-31 20:18:57,313 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 447 [2023-08-31 20:18:57,314 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 357 places, 962 transitions, 33990 flow. Second operand has 10 states, 10 states have (on average 172.1) internal successors, (1721), 10 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) [2023-08-31 20:18:57,314 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:18:57,314 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 447 [2023-08-31 20:18:57,314 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:19:02,219 INFO L130 PetriNetUnfolder]: 3402/9226 cut-off events. [2023-08-31 20:19:02,220 INFO L131 PetriNetUnfolder]: For 398415/398684 co-relation queries the response was YES. [2023-08-31 20:19:02,298 INFO L83 FinitePrefix]: Finished finitePrefix Result has 78075 conditions, 9226 events. 3402/9226 cut-off events. For 398415/398684 co-relation queries the response was YES. Maximal size of possible extension queue 370. Compared 90339 event pairs, 488 based on Foata normal form. 139/9257 useless extension candidates. Maximal degree in co-relation 77940. Up to 2445 conditions per place. [2023-08-31 20:19:02,330 INFO L137 encePairwiseOnDemand]: 416/447 looper letters, 562 selfloop transitions, 630 changer transitions 2/1232 dead transitions. [2023-08-31 20:19:02,330 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 370 places, 1232 transitions, 40787 flow [2023-08-31 20:19:02,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-31 20:19:02,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-31 20:19:02,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2685 transitions. [2023-08-31 20:19:02,333 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4290508149568552 [2023-08-31 20:19:02,333 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2685 transitions. [2023-08-31 20:19:02,333 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2685 transitions. [2023-08-31 20:19:02,333 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:19:02,333 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2685 transitions. [2023-08-31 20:19:02,336 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 191.78571428571428) internal successors, (2685), 14 states have internal predecessors, (2685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:19:02,339 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 447.0) internal successors, (6705), 15 states have internal predecessors, (6705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:19:02,339 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 447.0) internal successors, (6705), 15 states have internal predecessors, (6705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:19:02,339 INFO L175 Difference]: Start difference. First operand has 357 places, 962 transitions, 33990 flow. Second operand 14 states and 2685 transitions. [2023-08-31 20:19:02,339 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 370 places, 1232 transitions, 40787 flow [2023-08-31 20:19:05,869 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 369 places, 1232 transitions, 40624 flow, removed 79 selfloop flow, removed 1 redundant places. [2023-08-31 20:19:05,894 INFO L231 Difference]: Finished difference. Result has 380 places, 1020 transitions, 38743 flow [2023-08-31 20:19:05,895 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=447, PETRI_DIFFERENCE_MINUEND_FLOW=33859, PETRI_DIFFERENCE_MINUEND_PLACES=356, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=962, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=572, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=345, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=38743, PETRI_PLACES=380, PETRI_TRANSITIONS=1020} [2023-08-31 20:19:05,895 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 299 predicate places. [2023-08-31 20:19:05,895 INFO L495 AbstractCegarLoop]: Abstraction has has 380 places, 1020 transitions, 38743 flow [2023-08-31 20:19:05,895 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 172.1) internal successors, (1721), 10 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) [2023-08-31 20:19:05,895 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:19:05,896 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:19:05,896 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-08-31 20:19:05,896 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-31 20:19:05,896 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:19:05,896 INFO L85 PathProgramCache]: Analyzing trace with hash -1392959553, now seen corresponding path program 14 times [2023-08-31 20:19:05,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:19:05,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731763856] [2023-08-31 20:19:05,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:19:05,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:19:05,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:19:06,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:19:06,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:19:06,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731763856] [2023-08-31 20:19:06,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [731763856] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:19:06,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:19:06,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-31 20:19:06,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058679897] [2023-08-31 20:19:06,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:19:06,320 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-31 20:19:06,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:19:06,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-31 20:19:06,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-08-31 20:19:07,112 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 447 [2023-08-31 20:19:07,113 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 380 places, 1020 transitions, 38743 flow. Second operand has 10 states, 10 states have (on average 172.1) internal successors, (1721), 10 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) [2023-08-31 20:19:07,114 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:19:07,114 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 447 [2023-08-31 20:19:07,114 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:19:12,588 INFO L130 PetriNetUnfolder]: 3554/9656 cut-off events. [2023-08-31 20:19:12,589 INFO L131 PetriNetUnfolder]: For 481160/481460 co-relation queries the response was YES. [2023-08-31 20:19:12,679 INFO L83 FinitePrefix]: Finished finitePrefix Result has 85243 conditions, 9656 events. 3554/9656 cut-off events. For 481160/481460 co-relation queries the response was YES. Maximal size of possible extension queue 394. Compared 95800 event pairs, 501 based on Foata normal form. 140/9681 useless extension candidates. Maximal degree in co-relation 85098. Up to 2757 conditions per place. [2023-08-31 20:19:12,714 INFO L137 encePairwiseOnDemand]: 416/447 looper letters, 554 selfloop transitions, 691 changer transitions 2/1285 dead transitions. [2023-08-31 20:19:12,715 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 393 places, 1285 transitions, 45464 flow [2023-08-31 20:19:12,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-31 20:19:12,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-31 20:19:12,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2698 transitions. [2023-08-31 20:19:12,717 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43112815596037074 [2023-08-31 20:19:12,718 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2698 transitions. [2023-08-31 20:19:12,718 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2698 transitions. [2023-08-31 20:19:12,718 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:19:12,718 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2698 transitions. [2023-08-31 20:19:12,721 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 192.71428571428572) internal successors, (2698), 14 states have internal predecessors, (2698), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:19:12,724 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 447.0) internal successors, (6705), 15 states have internal predecessors, (6705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:19:12,724 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 447.0) internal successors, (6705), 15 states have internal predecessors, (6705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:19:12,725 INFO L175 Difference]: Start difference. First operand has 380 places, 1020 transitions, 38743 flow. Second operand 14 states and 2698 transitions. [2023-08-31 20:19:12,725 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 393 places, 1285 transitions, 45464 flow [2023-08-31 20:19:16,568 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 392 places, 1285 transitions, 45329 flow, removed 57 selfloop flow, removed 1 redundant places. [2023-08-31 20:19:16,594 INFO L231 Difference]: Finished difference. Result has 403 places, 1073 transitions, 43687 flow [2023-08-31 20:19:16,594 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=447, PETRI_DIFFERENCE_MINUEND_FLOW=38632, PETRI_DIFFERENCE_MINUEND_PLACES=379, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1020, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=638, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=343, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=43687, PETRI_PLACES=403, PETRI_TRANSITIONS=1073} [2023-08-31 20:19:16,595 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 322 predicate places. [2023-08-31 20:19:16,595 INFO L495 AbstractCegarLoop]: Abstraction has has 403 places, 1073 transitions, 43687 flow [2023-08-31 20:19:16,595 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 172.1) internal successors, (1721), 10 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) [2023-08-31 20:19:16,596 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:19:16,596 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:19:16,596 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-08-31 20:19:16,596 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-31 20:19:16,596 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:19:16,596 INFO L85 PathProgramCache]: Analyzing trace with hash -1218767647, now seen corresponding path program 1 times [2023-08-31 20:19:16,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:19:16,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804639601] [2023-08-31 20:19:16,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:19:16,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:19:16,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:19:17,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:19:17,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:19:17,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804639601] [2023-08-31 20:19:17,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [804639601] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:19:17,026 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:19:17,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-31 20:19:17,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517272661] [2023-08-31 20:19:17,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:19:17,026 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-31 20:19:17,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:19:17,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-31 20:19:17,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-08-31 20:19:17,666 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 447 [2023-08-31 20:19:17,666 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 403 places, 1073 transitions, 43687 flow. Second operand has 10 states, 10 states have (on average 172.2) internal successors, (1722), 10 states have internal predecessors, (1722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:19:17,666 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:19:17,667 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 447 [2023-08-31 20:19:17,667 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:19:23,678 INFO L130 PetriNetUnfolder]: 3684/10023 cut-off events. [2023-08-31 20:19:23,679 INFO L131 PetriNetUnfolder]: For 569086/569404 co-relation queries the response was YES. [2023-08-31 20:19:23,781 INFO L83 FinitePrefix]: Finished finitePrefix Result has 92255 conditions, 10023 events. 3684/10023 cut-off events. For 569086/569404 co-relation queries the response was YES. Maximal size of possible extension queue 410. Compared 100482 event pairs, 402 based on Foata normal form. 185/10084 useless extension candidates. Maximal degree in co-relation 92099. Up to 2756 conditions per place. [2023-08-31 20:19:23,820 INFO L137 encePairwiseOnDemand]: 415/447 looper letters, 588 selfloop transitions, 724 changer transitions 3/1353 dead transitions. [2023-08-31 20:19:23,820 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 420 places, 1353 transitions, 50188 flow [2023-08-31 20:19:23,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-08-31 20:19:23,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-08-31 20:19:23,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 3447 transitions. [2023-08-31 20:19:23,823 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42841163310961966 [2023-08-31 20:19:23,823 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 3447 transitions. [2023-08-31 20:19:23,823 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 3447 transitions. [2023-08-31 20:19:23,824 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:19:23,824 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 3447 transitions. [2023-08-31 20:19:23,827 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 191.5) internal successors, (3447), 18 states have internal predecessors, (3447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:19:23,831 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 447.0) internal successors, (8493), 19 states have internal predecessors, (8493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:19:23,831 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 447.0) internal successors, (8493), 19 states have internal predecessors, (8493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:19:23,831 INFO L175 Difference]: Start difference. First operand has 403 places, 1073 transitions, 43687 flow. Second operand 18 states and 3447 transitions. [2023-08-31 20:19:23,831 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 420 places, 1353 transitions, 50188 flow [2023-08-31 20:19:28,862 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 417 places, 1353 transitions, 50045 flow, removed 43 selfloop flow, removed 3 redundant places. [2023-08-31 20:19:28,890 INFO L231 Difference]: Finished difference. Result has 429 places, 1116 transitions, 48432 flow [2023-08-31 20:19:28,891 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=447, PETRI_DIFFERENCE_MINUEND_FLOW=43570, PETRI_DIFFERENCE_MINUEND_PLACES=400, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1073, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=682, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=363, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=48432, PETRI_PLACES=429, PETRI_TRANSITIONS=1116} [2023-08-31 20:19:28,891 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 348 predicate places. [2023-08-31 20:19:28,891 INFO L495 AbstractCegarLoop]: Abstraction has has 429 places, 1116 transitions, 48432 flow [2023-08-31 20:19:28,892 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 172.2) internal successors, (1722), 10 states have internal predecessors, (1722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:19:28,892 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:19:28,892 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:19:28,892 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-08-31 20:19:28,892 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-31 20:19:28,892 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:19:28,892 INFO L85 PathProgramCache]: Analyzing trace with hash -1078311815, now seen corresponding path program 1 times [2023-08-31 20:19:28,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:19:28,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965566616] [2023-08-31 20:19:28,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:19:28,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:19:28,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:19:29,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:19:29,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:19:29,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965566616] [2023-08-31 20:19:29,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1965566616] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:19:29,122 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:19:29,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 20:19:29,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646334846] [2023-08-31 20:19:29,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:19:29,122 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 20:19:29,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:19:29,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 20:19:29,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 20:19:29,312 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 177 out of 447 [2023-08-31 20:19:29,312 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 429 places, 1116 transitions, 48432 flow. Second operand has 6 states, 6 states have (on average 179.0) internal successors, (1074), 6 states have internal predecessors, (1074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:19:29,312 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:19:29,312 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 177 of 447 [2023-08-31 20:19:29,312 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:19:36,945 INFO L130 PetriNetUnfolder]: 6209/14894 cut-off events. [2023-08-31 20:19:36,945 INFO L131 PetriNetUnfolder]: For 833169/833479 co-relation queries the response was YES. [2023-08-31 20:19:37,101 INFO L83 FinitePrefix]: Finished finitePrefix Result has 127358 conditions, 14894 events. 6209/14894 cut-off events. For 833169/833479 co-relation queries the response was YES. Maximal size of possible extension queue 565. Compared 143057 event pairs, 2632 based on Foata normal form. 0/14564 useless extension candidates. Maximal degree in co-relation 127191. Up to 11607 conditions per place. [2023-08-31 20:19:37,156 INFO L137 encePairwiseOnDemand]: 433/447 looper letters, 1020 selfloop transitions, 170 changer transitions 0/1387 dead transitions. [2023-08-31 20:19:37,156 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 434 places, 1387 transitions, 61198 flow [2023-08-31 20:19:37,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 20:19:37,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 20:19:37,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1165 transitions. [2023-08-31 20:19:37,157 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4343773303504847 [2023-08-31 20:19:37,157 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1165 transitions. [2023-08-31 20:19:37,158 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1165 transitions. [2023-08-31 20:19:37,158 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:19:37,158 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1165 transitions. [2023-08-31 20:19:37,159 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 194.16666666666666) internal successors, (1165), 6 states have internal predecessors, (1165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:19:37,160 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 447.0) internal successors, (3129), 7 states have internal predecessors, (3129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:19:37,161 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 447.0) internal successors, (3129), 7 states have internal predecessors, (3129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:19:37,161 INFO L175 Difference]: Start difference. First operand has 429 places, 1116 transitions, 48432 flow. Second operand 6 states and 1165 transitions. [2023-08-31 20:19:37,161 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 434 places, 1387 transitions, 61198 flow [2023-08-31 20:19:45,632 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 429 places, 1387 transitions, 60988 flow, removed 59 selfloop flow, removed 5 redundant places. [2023-08-31 20:19:45,662 INFO L231 Difference]: Finished difference. Result has 433 places, 1255 transitions, 52608 flow [2023-08-31 20:19:45,663 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=447, PETRI_DIFFERENCE_MINUEND_FLOW=48290, PETRI_DIFFERENCE_MINUEND_PLACES=424, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=55, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1018, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=52608, PETRI_PLACES=433, PETRI_TRANSITIONS=1255} [2023-08-31 20:19:45,663 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 352 predicate places. [2023-08-31 20:19:45,663 INFO L495 AbstractCegarLoop]: Abstraction has has 433 places, 1255 transitions, 52608 flow [2023-08-31 20:19:45,663 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 179.0) internal successors, (1074), 6 states have internal predecessors, (1074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:19:45,664 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:19:45,664 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:19:45,664 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-08-31 20:19:45,664 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-31 20:19:45,664 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:19:45,665 INFO L85 PathProgramCache]: Analyzing trace with hash 1718345549, now seen corresponding path program 1 times [2023-08-31 20:19:45,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:19:45,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273499355] [2023-08-31 20:19:45,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:19:45,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:19:45,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:19:45,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:19:45,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:19:45,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273499355] [2023-08-31 20:19:45,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [273499355] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:19:45,878 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:19:45,878 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 20:19:45,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946734158] [2023-08-31 20:19:45,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:19:45,879 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 20:19:45,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:19:45,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 20:19:45,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 20:19:46,093 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 182 out of 447 [2023-08-31 20:19:46,093 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 433 places, 1255 transitions, 52608 flow. Second operand has 6 states, 6 states have (on average 183.66666666666666) internal successors, (1102), 6 states have internal predecessors, (1102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:19:46,093 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:19:46,093 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 182 of 447 [2023-08-31 20:19:46,094 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:19:54,930 INFO L130 PetriNetUnfolder]: 7377/18039 cut-off events. [2023-08-31 20:19:54,930 INFO L131 PetriNetUnfolder]: For 1092755/1093457 co-relation queries the response was YES. [2023-08-31 20:19:55,126 INFO L83 FinitePrefix]: Finished finitePrefix Result has 163297 conditions, 18039 events. 7377/18039 cut-off events. For 1092755/1093457 co-relation queries the response was YES. Maximal size of possible extension queue 701. Compared 183638 event pairs, 871 based on Foata normal form. 75/17618 useless extension candidates. Maximal degree in co-relation 163127. Up to 10029 conditions per place. [2023-08-31 20:19:55,188 INFO L137 encePairwiseOnDemand]: 425/447 looper letters, 1040 selfloop transitions, 752 changer transitions 4/2149 dead transitions. [2023-08-31 20:19:55,188 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 438 places, 2149 transitions, 98689 flow [2023-08-31 20:19:55,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 20:19:55,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 20:19:55,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1255 transitions. [2023-08-31 20:19:55,190 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4679343773303505 [2023-08-31 20:19:55,190 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1255 transitions. [2023-08-31 20:19:55,190 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1255 transitions. [2023-08-31 20:19:55,190 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:19:55,190 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1255 transitions. [2023-08-31 20:19:55,192 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 209.16666666666666) internal successors, (1255), 6 states have internal predecessors, (1255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:19:55,194 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 447.0) internal successors, (3129), 7 states have internal predecessors, (3129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:19:55,194 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 447.0) internal successors, (3129), 7 states have internal predecessors, (3129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:19:55,194 INFO L175 Difference]: Start difference. First operand has 433 places, 1255 transitions, 52608 flow. Second operand 6 states and 1255 transitions. [2023-08-31 20:19:55,194 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 438 places, 2149 transitions, 98689 flow [2023-08-31 20:20:09,385 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 438 places, 2149 transitions, 98217 flow, removed 236 selfloop flow, removed 0 redundant places. [2023-08-31 20:20:09,429 INFO L231 Difference]: Finished difference. Result has 443 places, 1829 transitions, 85274 flow [2023-08-31 20:20:09,430 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=447, PETRI_DIFFERENCE_MINUEND_FLOW=52136, PETRI_DIFFERENCE_MINUEND_PLACES=433, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1255, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=277, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=944, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=85274, PETRI_PLACES=443, PETRI_TRANSITIONS=1829} [2023-08-31 20:20:09,430 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 362 predicate places. [2023-08-31 20:20:09,430 INFO L495 AbstractCegarLoop]: Abstraction has has 443 places, 1829 transitions, 85274 flow [2023-08-31 20:20:09,430 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 183.66666666666666) internal successors, (1102), 6 states have internal predecessors, (1102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:20:09,430 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:20:09,430 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:20:09,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-08-31 20:20:09,431 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-31 20:20:09,431 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:20:09,431 INFO L85 PathProgramCache]: Analyzing trace with hash 1773728333, now seen corresponding path program 1 times [2023-08-31 20:20:09,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:20:09,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285565216] [2023-08-31 20:20:09,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:20:09,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:20:09,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:20:09,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:20:09,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:20:09,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285565216] [2023-08-31 20:20:09,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [285565216] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:20:09,748 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:20:09,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-31 20:20:09,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130189974] [2023-08-31 20:20:09,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:20:09,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-31 20:20:09,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:20:09,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-31 20:20:09,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-08-31 20:20:10,343 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 173 out of 447 [2023-08-31 20:20:10,344 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 443 places, 1829 transitions, 85274 flow. Second operand has 10 states, 10 states have (on average 174.4) internal successors, (1744), 10 states have internal predecessors, (1744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:20:10,344 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:20:10,344 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 173 of 447 [2023-08-31 20:20:10,344 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:20:24,528 INFO L130 PetriNetUnfolder]: 8416/19833 cut-off events. [2023-08-31 20:20:24,529 INFO L131 PetriNetUnfolder]: For 1170054/1170717 co-relation queries the response was YES. [2023-08-31 20:20:24,752 INFO L83 FinitePrefix]: Finished finitePrefix Result has 189808 conditions, 19833 events. 8416/19833 cut-off events. For 1170054/1170717 co-relation queries the response was YES. Maximal size of possible extension queue 696. Compared 196563 event pairs, 2075 based on Foata normal form. 106/19614 useless extension candidates. Maximal degree in co-relation 189633. Up to 12673 conditions per place. [2023-08-31 20:20:24,822 INFO L137 encePairwiseOnDemand]: 433/447 looper letters, 1281 selfloop transitions, 488 changer transitions 2/2109 dead transitions. [2023-08-31 20:20:24,823 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 457 places, 2109 transitions, 97583 flow [2023-08-31 20:20:24,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-08-31 20:20:24,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-08-31 20:20:24,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2788 transitions. [2023-08-31 20:20:24,825 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41580909768829233 [2023-08-31 20:20:24,825 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2788 transitions. [2023-08-31 20:20:24,825 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2788 transitions. [2023-08-31 20:20:24,826 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:20:24,826 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2788 transitions. [2023-08-31 20:20:24,828 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 185.86666666666667) internal successors, (2788), 15 states have internal predecessors, (2788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:20:24,831 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 447.0) internal successors, (7152), 16 states have internal predecessors, (7152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:20:24,831 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 447.0) internal successors, (7152), 16 states have internal predecessors, (7152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:20:24,831 INFO L175 Difference]: Start difference. First operand has 443 places, 1829 transitions, 85274 flow. Second operand 15 states and 2788 transitions. [2023-08-31 20:20:24,831 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 457 places, 2109 transitions, 97583 flow [2023-08-31 20:20:42,555 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 457 places, 2109 transitions, 96779 flow, removed 402 selfloop flow, removed 0 redundant places. [2023-08-31 20:20:42,631 INFO L231 Difference]: Finished difference. Result has 461 places, 1919 transitions, 89455 flow [2023-08-31 20:20:42,632 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=447, PETRI_DIFFERENCE_MINUEND_FLOW=84494, PETRI_DIFFERENCE_MINUEND_PLACES=443, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1829, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=404, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1421, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=89455, PETRI_PLACES=461, PETRI_TRANSITIONS=1919} [2023-08-31 20:20:42,632 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 380 predicate places. [2023-08-31 20:20:42,632 INFO L495 AbstractCegarLoop]: Abstraction has has 461 places, 1919 transitions, 89455 flow [2023-08-31 20:20:42,632 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 174.4) internal successors, (1744), 10 states have internal predecessors, (1744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:20:42,633 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:20:42,633 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:20:42,633 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-08-31 20:20:42,633 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-31 20:20:42,633 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:20:42,633 INFO L85 PathProgramCache]: Analyzing trace with hash 1473536571, now seen corresponding path program 1 times [2023-08-31 20:20:42,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:20:42,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434153108] [2023-08-31 20:20:42,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:20:42,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:20:42,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:20:43,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:20:43,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:20:43,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434153108] [2023-08-31 20:20:43,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434153108] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:20:43,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:20:43,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-31 20:20:43,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586330630] [2023-08-31 20:20:43,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:20:43,342 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-31 20:20:43,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:20:43,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-31 20:20:43,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2023-08-31 20:20:44,722 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 447 [2023-08-31 20:20:44,723 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 461 places, 1919 transitions, 89455 flow. Second operand has 13 states, 13 states have (on average 157.3846153846154) internal successors, (2046), 13 states have internal predecessors, (2046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:20:44,723 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:20:44,723 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 447 [2023-08-31 20:20:44,723 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:21:01,032 INFO L130 PetriNetUnfolder]: 8780/20277 cut-off events. [2023-08-31 20:21:01,032 INFO L131 PetriNetUnfolder]: For 1212837/1213428 co-relation queries the response was YES. [2023-08-31 20:21:01,280 INFO L83 FinitePrefix]: Finished finitePrefix Result has 195716 conditions, 20277 events. 8780/20277 cut-off events. For 1212837/1213428 co-relation queries the response was YES. Maximal size of possible extension queue 718. Compared 198453 event pairs, 1730 based on Foata normal form. 32/19980 useless extension candidates. Maximal degree in co-relation 195536. Up to 10564 conditions per place. [2023-08-31 20:21:01,445 INFO L137 encePairwiseOnDemand]: 430/447 looper letters, 1174 selfloop transitions, 567 changer transitions 0/2150 dead transitions. [2023-08-31 20:21:01,445 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 479 places, 2150 transitions, 99421 flow [2023-08-31 20:21:01,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-08-31 20:21:01,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2023-08-31 20:21:01,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 3170 transitions. [2023-08-31 20:21:01,448 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3732485576357 [2023-08-31 20:21:01,448 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 3170 transitions. [2023-08-31 20:21:01,448 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 3170 transitions. [2023-08-31 20:21:01,449 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:21:01,449 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 3170 transitions. [2023-08-31 20:21:01,451 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 166.8421052631579) internal successors, (3170), 19 states have internal predecessors, (3170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:21:01,454 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 447.0) internal successors, (8940), 20 states have internal predecessors, (8940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:21:01,454 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 447.0) internal successors, (8940), 20 states have internal predecessors, (8940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:21:01,455 INFO L175 Difference]: Start difference. First operand has 461 places, 1919 transitions, 89455 flow. Second operand 19 states and 3170 transitions. [2023-08-31 20:21:01,455 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 479 places, 2150 transitions, 99421 flow [2023-08-31 20:21:21,224 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 476 places, 2150 transitions, 99344 flow, removed 14 selfloop flow, removed 3 redundant places. [2023-08-31 20:21:21,278 INFO L231 Difference]: Finished difference. Result has 485 places, 1992 transitions, 94557 flow [2023-08-31 20:21:21,279 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=447, PETRI_DIFFERENCE_MINUEND_FLOW=89378, PETRI_DIFFERENCE_MINUEND_PLACES=458, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1919, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=497, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1385, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=94557, PETRI_PLACES=485, PETRI_TRANSITIONS=1992} [2023-08-31 20:21:21,279 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 404 predicate places. [2023-08-31 20:21:21,279 INFO L495 AbstractCegarLoop]: Abstraction has has 485 places, 1992 transitions, 94557 flow [2023-08-31 20:21:21,280 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 157.3846153846154) internal successors, (2046), 13 states have internal predecessors, (2046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:21:21,280 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:21:21,280 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:21:21,280 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-08-31 20:21:21,280 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-31 20:21:21,280 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:21:21,280 INFO L85 PathProgramCache]: Analyzing trace with hash -1789354223, now seen corresponding path program 2 times [2023-08-31 20:21:21,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:21:21,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181334523] [2023-08-31 20:21:21,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:21:21,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:21:21,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:21:21,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:21:21,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:21:21,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181334523] [2023-08-31 20:21:21,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1181334523] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:21:21,880 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:21:21,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-31 20:21:21,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232507190] [2023-08-31 20:21:21,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:21:21,881 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-31 20:21:21,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:21:21,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-31 20:21:21,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2023-08-31 20:21:23,002 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 447 [2023-08-31 20:21:23,003 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 485 places, 1992 transitions, 94557 flow. Second operand has 13 states, 13 states have (on average 157.3846153846154) internal successors, (2046), 13 states have internal predecessors, (2046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:21:23,003 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:21:23,003 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 447 [2023-08-31 20:21:23,003 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:21:42,849 INFO L130 PetriNetUnfolder]: 11131/25721 cut-off events. [2023-08-31 20:21:42,849 INFO L131 PetriNetUnfolder]: For 1668462/1669203 co-relation queries the response was YES. [2023-08-31 20:21:43,458 INFO L83 FinitePrefix]: Finished finitePrefix Result has 261845 conditions, 25721 events. 11131/25721 cut-off events. For 1668462/1669203 co-relation queries the response was YES. Maximal size of possible extension queue 829. Compared 261137 event pairs, 2808 based on Foata normal form. 0/25368 useless extension candidates. Maximal degree in co-relation 261655. Up to 11581 conditions per place. [2023-08-31 20:21:43,559 INFO L137 encePairwiseOnDemand]: 433/447 looper letters, 1974 selfloop transitions, 359 changer transitions 0/2742 dead transitions. [2023-08-31 20:21:43,559 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 501 places, 2742 transitions, 125166 flow [2023-08-31 20:21:43,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-08-31 20:21:43,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-08-31 20:21:43,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2881 transitions. [2023-08-31 20:21:43,562 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.37912883274115017 [2023-08-31 20:21:43,562 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2881 transitions. [2023-08-31 20:21:43,562 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2881 transitions. [2023-08-31 20:21:43,562 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:21:43,562 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2881 transitions. [2023-08-31 20:21:43,564 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 169.47058823529412) internal successors, (2881), 17 states have internal predecessors, (2881), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:21:43,567 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 447.0) internal successors, (8046), 18 states have internal predecessors, (8046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:21:43,568 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 447.0) internal successors, (8046), 18 states have internal predecessors, (8046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:21:43,568 INFO L175 Difference]: Start difference. First operand has 485 places, 1992 transitions, 94557 flow. Second operand 17 states and 2881 transitions. [2023-08-31 20:21:43,568 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 501 places, 2742 transitions, 125166 flow [2023-08-31 20:22:16,046 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 495 places, 2742 transitions, 124739 flow, removed 6 selfloop flow, removed 6 redundant places. [2023-08-31 20:22:16,106 INFO L231 Difference]: Finished difference. Result has 506 places, 2222 transitions, 107847 flow [2023-08-31 20:22:16,108 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=447, PETRI_DIFFERENCE_MINUEND_FLOW=94209, PETRI_DIFFERENCE_MINUEND_PLACES=479, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1992, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=152, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1695, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=107847, PETRI_PLACES=506, PETRI_TRANSITIONS=2222} [2023-08-31 20:22:16,108 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 425 predicate places. [2023-08-31 20:22:16,108 INFO L495 AbstractCegarLoop]: Abstraction has has 506 places, 2222 transitions, 107847 flow [2023-08-31 20:22:16,109 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 157.3846153846154) internal successors, (2046), 13 states have internal predecessors, (2046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:22:16,109 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:22:16,109 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:22:16,109 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-08-31 20:22:16,109 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-31 20:22:16,109 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:22:16,109 INFO L85 PathProgramCache]: Analyzing trace with hash 268536179, now seen corresponding path program 3 times [2023-08-31 20:22:16,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:22:16,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67528805] [2023-08-31 20:22:16,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:22:16,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:22:16,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:22:16,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:22:16,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:22:16,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67528805] [2023-08-31 20:22:16,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [67528805] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:22:16,671 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:22:16,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-31 20:22:16,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243644757] [2023-08-31 20:22:16,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:22:16,672 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-31 20:22:16,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:22:16,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-31 20:22:16,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2023-08-31 20:22:17,507 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 447 [2023-08-31 20:22:17,508 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 506 places, 2222 transitions, 107847 flow. Second operand has 13 states, 13 states have (on average 157.3846153846154) internal successors, (2046), 13 states have internal predecessors, (2046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:22:17,508 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:22:17,508 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 447 [2023-08-31 20:22:17,508 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:22:46,102 INFO L130 PetriNetUnfolder]: 14586/33285 cut-off events. [2023-08-31 20:22:46,103 INFO L131 PetriNetUnfolder]: For 2211583/2212597 co-relation queries the response was YES. [2023-08-31 20:22:47,216 INFO L83 FinitePrefix]: Finished finitePrefix Result has 340606 conditions, 33285 events. 14586/33285 cut-off events. For 2211583/2212597 co-relation queries the response was YES. Maximal size of possible extension queue 1082. Compared 349582 event pairs, 3408 based on Foata normal form. 35/32972 useless extension candidates. Maximal degree in co-relation 340404. Up to 15822 conditions per place. [2023-08-31 20:22:47,360 INFO L137 encePairwiseOnDemand]: 433/447 looper letters, 2163 selfloop transitions, 548 changer transitions 0/3120 dead transitions. [2023-08-31 20:22:47,360 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 520 places, 3120 transitions, 149475 flow [2023-08-31 20:22:47,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-08-31 20:22:47,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-08-31 20:22:47,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2533 transitions. [2023-08-31 20:22:47,380 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.37777777777777777 [2023-08-31 20:22:47,380 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2533 transitions. [2023-08-31 20:22:47,380 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2533 transitions. [2023-08-31 20:22:47,381 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:22:47,381 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2533 transitions. [2023-08-31 20:22:47,390 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 168.86666666666667) internal successors, (2533), 15 states have internal predecessors, (2533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:22:47,396 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 447.0) internal successors, (7152), 16 states have internal predecessors, (7152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:22:47,396 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 447.0) internal successors, (7152), 16 states have internal predecessors, (7152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:22:47,396 INFO L175 Difference]: Start difference. First operand has 506 places, 2222 transitions, 107847 flow. Second operand 15 states and 2533 transitions. [2023-08-31 20:22:47,396 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 520 places, 3120 transitions, 149475 flow [2023-08-31 20:23:35,937 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 518 places, 3120 transitions, 149404 flow, removed 30 selfloop flow, removed 2 redundant places. [2023-08-31 20:23:36,008 INFO L231 Difference]: Finished difference. Result has 529 places, 2486 transitions, 124953 flow [2023-08-31 20:23:36,010 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=447, PETRI_DIFFERENCE_MINUEND_FLOW=107777, PETRI_DIFFERENCE_MINUEND_PLACES=504, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2222, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=289, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1728, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=124953, PETRI_PLACES=529, PETRI_TRANSITIONS=2486} [2023-08-31 20:23:36,010 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 448 predicate places. [2023-08-31 20:23:36,010 INFO L495 AbstractCegarLoop]: Abstraction has has 529 places, 2486 transitions, 124953 flow [2023-08-31 20:23:36,010 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 157.3846153846154) internal successors, (2046), 13 states have internal predecessors, (2046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:23:36,010 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:23:36,011 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:23:36,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-08-31 20:23:36,011 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-31 20:23:36,011 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:23:36,011 INFO L85 PathProgramCache]: Analyzing trace with hash 1339649303, now seen corresponding path program 4 times [2023-08-31 20:23:36,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:23:36,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667182036] [2023-08-31 20:23:36,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:23:36,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:23:36,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:23:36,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:23:36,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:23:36,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667182036] [2023-08-31 20:23:36,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1667182036] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:23:36,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:23:36,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-31 20:23:36,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407112845] [2023-08-31 20:23:36,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:23:36,901 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-31 20:23:36,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:23:36,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-31 20:23:36,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2023-08-31 20:23:37,939 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 447 [2023-08-31 20:23:37,940 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 529 places, 2486 transitions, 124953 flow. Second operand has 13 states, 13 states have (on average 157.3846153846154) internal successors, (2046), 13 states have internal predecessors, (2046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:23:37,940 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:23:37,940 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 447 [2023-08-31 20:23:37,940 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:24:10,756 INFO L130 PetriNetUnfolder]: 14707/33470 cut-off events. [2023-08-31 20:24:10,757 INFO L131 PetriNetUnfolder]: For 2337308/2338376 co-relation queries the response was YES. [2023-08-31 20:24:11,435 INFO L83 FinitePrefix]: Finished finitePrefix Result has 352620 conditions, 33470 events. 14707/33470 cut-off events. For 2337308/2338376 co-relation queries the response was YES. Maximal size of possible extension queue 1078. Compared 350016 event pairs, 3198 based on Foata normal form. 45/33160 useless extension candidates. Maximal degree in co-relation 352406. Up to 19098 conditions per place. [2023-08-31 20:24:11,572 INFO L137 encePairwiseOnDemand]: 434/447 looper letters, 1519 selfloop transitions, 824 changer transitions 0/2752 dead transitions. [2023-08-31 20:24:11,572 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 546 places, 2752 transitions, 136905 flow [2023-08-31 20:24:11,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-08-31 20:24:11,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-08-31 20:24:11,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 3027 transitions. [2023-08-31 20:24:11,575 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3762117822520507 [2023-08-31 20:24:11,575 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 3027 transitions. [2023-08-31 20:24:11,575 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 3027 transitions. [2023-08-31 20:24:11,575 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:24:11,575 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 3027 transitions. [2023-08-31 20:24:11,577 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 168.16666666666666) internal successors, (3027), 18 states have internal predecessors, (3027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:24:11,580 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 447.0) internal successors, (8493), 19 states have internal predecessors, (8493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:24:11,581 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 447.0) internal successors, (8493), 19 states have internal predecessors, (8493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:24:11,581 INFO L175 Difference]: Start difference. First operand has 529 places, 2486 transitions, 124953 flow. Second operand 18 states and 3027 transitions. [2023-08-31 20:24:11,581 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 546 places, 2752 transitions, 136905 flow [2023-08-31 20:24:59,695 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 545 places, 2752 transitions, 136622 flow, removed 110 selfloop flow, removed 1 redundant places. [2023-08-31 20:24:59,766 INFO L231 Difference]: Finished difference. Result has 554 places, 2520 transitions, 128200 flow [2023-08-31 20:24:59,767 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=447, PETRI_DIFFERENCE_MINUEND_FLOW=124670, PETRI_DIFFERENCE_MINUEND_PLACES=528, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2486, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=790, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1670, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=128200, PETRI_PLACES=554, PETRI_TRANSITIONS=2520} [2023-08-31 20:24:59,767 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 473 predicate places. [2023-08-31 20:24:59,768 INFO L495 AbstractCegarLoop]: Abstraction has has 554 places, 2520 transitions, 128200 flow [2023-08-31 20:24:59,768 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 157.3846153846154) internal successors, (2046), 13 states have internal predecessors, (2046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:24:59,768 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:24:59,768 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:24:59,768 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-08-31 20:24:59,768 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-31 20:24:59,769 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:24:59,769 INFO L85 PathProgramCache]: Analyzing trace with hash 2103470079, now seen corresponding path program 5 times [2023-08-31 20:24:59,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:24:59,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492426908] [2023-08-31 20:24:59,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:24:59,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:24:59,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:25:00,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:25:00,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:25:00,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492426908] [2023-08-31 20:25:00,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492426908] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:25:00,417 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:25:00,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-31 20:25:00,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370474908] [2023-08-31 20:25:00,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:25:00,418 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-31 20:25:00,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:25:00,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-31 20:25:00,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2023-08-31 20:25:01,307 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 447 [2023-08-31 20:25:01,308 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 554 places, 2520 transitions, 128200 flow. Second operand has 12 states, 12 states have (on average 157.5) internal successors, (1890), 12 states have internal predecessors, (1890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:25:01,308 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:25:01,308 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 447 [2023-08-31 20:25:01,308 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:25:33,776 INFO L130 PetriNetUnfolder]: 14736/33586 cut-off events. [2023-08-31 20:25:33,777 INFO L131 PetriNetUnfolder]: For 2415275/2416365 co-relation queries the response was YES. [2023-08-31 20:25:34,454 INFO L83 FinitePrefix]: Finished finitePrefix Result has 358194 conditions, 33586 events. 14736/33586 cut-off events. For 2415275/2416365 co-relation queries the response was YES. Maximal size of possible extension queue 1077. Compared 351958 event pairs, 3597 based on Foata normal form. 74/33303 useless extension candidates. Maximal degree in co-relation 357970. Up to 19484 conditions per place. [2023-08-31 20:25:34,593 INFO L137 encePairwiseOnDemand]: 430/447 looper letters, 1319 selfloop transitions, 938 changer transitions 0/2666 dead transitions. [2023-08-31 20:25:34,594 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 571 places, 2666 transitions, 135344 flow [2023-08-31 20:25:34,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-08-31 20:25:34,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-08-31 20:25:34,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 3016 transitions. [2023-08-31 20:25:34,596 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.37484464330101913 [2023-08-31 20:25:34,596 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 3016 transitions. [2023-08-31 20:25:34,596 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 3016 transitions. [2023-08-31 20:25:34,596 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:25:34,596 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 3016 transitions. [2023-08-31 20:25:34,598 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 167.55555555555554) internal successors, (3016), 18 states have internal predecessors, (3016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:25:34,601 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 447.0) internal successors, (8493), 19 states have internal predecessors, (8493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:25:34,602 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 447.0) internal successors, (8493), 19 states have internal predecessors, (8493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:25:34,602 INFO L175 Difference]: Start difference. First operand has 554 places, 2520 transitions, 128200 flow. Second operand 18 states and 3016 transitions. [2023-08-31 20:25:34,602 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 571 places, 2666 transitions, 135344 flow [2023-08-31 20:26:19,404 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 565 places, 2666 transitions, 134996 flow, removed 118 selfloop flow, removed 6 redundant places. [2023-08-31 20:26:19,474 INFO L231 Difference]: Finished difference. Result has 569 places, 2529 transitions, 130090 flow [2023-08-31 20:26:19,476 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=447, PETRI_DIFFERENCE_MINUEND_FLOW=127860, PETRI_DIFFERENCE_MINUEND_PLACES=548, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2520, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=929, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1587, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=130090, PETRI_PLACES=569, PETRI_TRANSITIONS=2529} [2023-08-31 20:26:19,476 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, 488 predicate places. [2023-08-31 20:26:19,477 INFO L495 AbstractCegarLoop]: Abstraction has has 569 places, 2529 transitions, 130090 flow [2023-08-31 20:26:19,477 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 157.5) internal successors, (1890), 12 states have internal predecessors, (1890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:26:19,477 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:26:19,477 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:26:19,477 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-08-31 20:26:19,477 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-08-31 20:26:19,478 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:26:19,478 INFO L85 PathProgramCache]: Analyzing trace with hash 51641875, now seen corresponding path program 6 times [2023-08-31 20:26:19,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:26:19,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702093503] [2023-08-31 20:26:19,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:26:19,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:26:19,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:26:20,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:26:20,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:26:20,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702093503] [2023-08-31 20:26:20,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1702093503] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:26:20,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:26:20,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-31 20:26:20,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308714504] [2023-08-31 20:26:20,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:26:20,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-31 20:26:20,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:26:20,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-31 20:26:20,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2023-08-31 20:26:21,303 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 447 [2023-08-31 20:26:21,304 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 569 places, 2529 transitions, 130090 flow. Second operand has 13 states, 13 states have (on average 157.3846153846154) internal successors, (2046), 13 states have internal predecessors, (2046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:26:21,304 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:26:21,304 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 447 [2023-08-31 20:26:21,304 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:26:57,144 INFO L130 PetriNetUnfolder]: 14749/33538 cut-off events. [2023-08-31 20:26:57,144 INFO L131 PetriNetUnfolder]: For 2491090/2492191 co-relation queries the response was YES. [2023-08-31 20:26:58,565 INFO L83 FinitePrefix]: Finished finitePrefix Result has 364584 conditions, 33538 events. 14749/33538 cut-off events. For 2491090/2492191 co-relation queries the response was YES. Maximal size of possible extension queue 1083. Compared 350565 event pairs, 3159 based on Foata normal form. 78/33259 useless extension candidates. Maximal degree in co-relation 364357. Up to 17619 conditions per place. [2023-08-31 20:26:58,847 INFO L137 encePairwiseOnDemand]: 430/447 looper letters, 1205 selfloop transitions, 1079 changer transitions 0/2693 dead transitions. [2023-08-31 20:26:58,847 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 589 places, 2693 transitions, 138273 flow [2023-08-31 20:26:58,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-08-31 20:26:58,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2023-08-31 20:26:58,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 3489 transitions. [2023-08-31 20:26:58,850 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.37168424416746565 [2023-08-31 20:26:58,850 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 3489 transitions. [2023-08-31 20:26:58,851 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 3489 transitions. [2023-08-31 20:26:58,851 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:26:58,851 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 3489 transitions. [2023-08-31 20:26:58,853 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 166.14285714285714) internal successors, (3489), 21 states have internal predecessors, (3489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:26:58,857 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 447.0) internal successors, (9834), 22 states have internal predecessors, (9834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:26:58,857 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 447.0) internal successors, (9834), 22 states have internal predecessors, (9834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:26:58,857 INFO L175 Difference]: Start difference. First operand has 569 places, 2529 transitions, 130090 flow. Second operand 21 states and 3489 transitions. [2023-08-31 20:26:58,857 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 589 places, 2693 transitions, 138273 flow Killed by 15