./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/goblint-regression/09-regions_01-list_rc.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/goblint-regression/09-regions_01-list_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 3468cfea1e2552ee69c1236196f7193e72e290c81920516b4f57e05ea8ee84cc --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-29 17:41:22,565 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 17:41:22,568 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 17:41:22,607 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 17:41:22,608 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 17:41:22,611 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 17:41:22,613 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 17:41:22,616 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 17:41:22,618 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 17:41:22,622 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 17:41:22,623 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 17:41:22,625 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 17:41:22,625 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 17:41:22,627 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 17:41:22,628 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 17:41:22,633 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 17:41:22,634 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 17:41:22,636 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 17:41:22,637 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 17:41:22,642 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 17:41:22,653 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 17:41:22,655 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 17:41:22,655 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 17:41:22,656 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 17:41:22,662 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 17:41:22,663 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 17:41:22,663 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 17:41:22,665 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 17:41:22,666 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 17:41:22,667 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 17:41:22,667 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 17:41:22,668 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 17:41:22,670 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 17:41:22,670 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 17:41:22,671 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 17:41:22,671 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 17:41:22,672 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 17:41:22,672 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 17:41:22,673 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 17:41:22,673 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 17:41:22,674 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 17:41:22,675 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-29 17:41:22,709 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 17:41:22,709 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 17:41:22,711 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 17:41:22,711 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 17:41:22,712 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 17:41:22,712 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 17:41:22,712 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 17:41:22,712 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 17:41:22,713 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 17:41:22,713 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 17:41:22,714 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 17:41:22,714 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 17:41:22,714 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 17:41:22,714 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 17:41:22,714 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 17:41:22,715 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-29 17:41:22,715 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 17:41:22,715 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-29 17:41:22,715 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-29 17:41:22,715 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 17:41:22,716 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-29 17:41:22,716 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 17:41:22,716 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-29 17:41:22,716 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 17:41:22,716 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 17:41:22,717 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 17:41:22,717 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 17:41:22,717 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 17:41:22,717 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 17:41:22,717 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-29 17:41:22,717 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 17:41:22,718 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 17:41:22,718 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 17:41:22,718 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-29 17:41:22,718 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 17:41:22,719 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 17:41:22,719 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 17:41:22,719 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3468cfea1e2552ee69c1236196f7193e72e290c81920516b4f57e05ea8ee84cc Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-29 17:41:23,043 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 17:41:23,064 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 17:41:23,067 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 17:41:23,068 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 17:41:23,068 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 17:41:23,069 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/09-regions_01-list_rc.i [2023-08-29 17:41:24,172 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 17:41:24,439 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 17:41:24,440 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/09-regions_01-list_rc.i [2023-08-29 17:41:24,457 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e81cfb4a0/0b90019251364da5961b6ce187b63029/FLAGdef44669d [2023-08-29 17:41:24,476 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e81cfb4a0/0b90019251364da5961b6ce187b63029 [2023-08-29 17:41:24,478 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 17:41:24,479 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 17:41:24,480 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 17:41:24,480 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 17:41:24,483 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 17:41:24,484 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 05:41:24" (1/1) ... [2023-08-29 17:41:24,485 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3425aff4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:41:24, skipping insertion in model container [2023-08-29 17:41:24,485 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 05:41:24" (1/1) ... [2023-08-29 17:41:24,490 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 17:41:24,540 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 17:41:24,986 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 17:41:24,999 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 17:41:25,060 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 17:41:25,203 INFO L208 MainTranslator]: Completed translation [2023-08-29 17:41:25,204 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:41:25 WrapperNode [2023-08-29 17:41:25,204 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 17:41:25,205 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 17:41:25,205 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 17:41:25,206 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 17:41:25,212 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:41:25" (1/1) ... [2023-08-29 17:41:25,241 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:41:25" (1/1) ... [2023-08-29 17:41:25,278 INFO L138 Inliner]: procedures = 368, calls = 35, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 171 [2023-08-29 17:41:25,278 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 17:41:25,279 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 17:41:25,279 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 17:41:25,279 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 17:41:25,287 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:41:25" (1/1) ... [2023-08-29 17:41:25,287 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:41:25" (1/1) ... [2023-08-29 17:41:25,292 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:41:25" (1/1) ... [2023-08-29 17:41:25,292 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:41:25" (1/1) ... [2023-08-29 17:41:25,305 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:41:25" (1/1) ... [2023-08-29 17:41:25,307 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:41:25" (1/1) ... [2023-08-29 17:41:25,309 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:41:25" (1/1) ... [2023-08-29 17:41:25,310 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:41:25" (1/1) ... [2023-08-29 17:41:25,313 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 17:41:25,314 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 17:41:25,314 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 17:41:25,314 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 17:41:25,315 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:41:25" (1/1) ... [2023-08-29 17:41:25,320 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 17:41:25,331 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 17:41:25,342 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-29 17:41:25,357 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-29 17:41:25,376 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 17:41:25,376 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-08-29 17:41:25,376 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 17:41:25,376 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-29 17:41:25,377 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-29 17:41:25,377 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-29 17:41:25,377 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-29 17:41:25,377 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-29 17:41:25,377 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-08-29 17:41:25,377 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-29 17:41:25,378 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-29 17:41:25,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-29 17:41:25,378 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 17:41:25,378 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 17:41:25,379 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-29 17:41:25,547 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 17:41:25,549 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 17:41:25,970 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 17:41:25,979 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 17:41:25,979 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-29 17:41:25,981 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 05:41:25 BoogieIcfgContainer [2023-08-29 17:41:25,983 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 17:41:25,985 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 17:41:25,985 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 17:41:25,988 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 17:41:25,989 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 05:41:24" (1/3) ... [2023-08-29 17:41:25,989 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66ae8399 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 05:41:25, skipping insertion in model container [2023-08-29 17:41:25,989 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:41:25" (2/3) ... [2023-08-29 17:41:25,990 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66ae8399 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 05:41:25, skipping insertion in model container [2023-08-29 17:41:25,990 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 05:41:25" (3/3) ... [2023-08-29 17:41:25,991 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_01-list_rc.i [2023-08-29 17:41:26,000 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-29 17:41:26,008 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 17:41:26,009 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2023-08-29 17:41:26,009 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 17:41:26,125 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-29 17:41:26,166 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 198 places, 194 transitions, 393 flow [2023-08-29 17:41:26,259 INFO L130 PetriNetUnfolder]: 0/193 cut-off events. [2023-08-29 17:41:26,260 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 17:41:26,263 INFO L83 FinitePrefix]: Finished finitePrefix Result has 197 conditions, 193 events. 0/193 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 83 event pairs, 0 based on Foata normal form. 0/175 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-08-29 17:41:26,264 INFO L82 GeneralOperation]: Start removeDead. Operand has 198 places, 194 transitions, 393 flow [2023-08-29 17:41:26,273 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 197 places, 193 transitions, 389 flow [2023-08-29 17:41:26,277 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 17:41:26,296 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 197 places, 193 transitions, 389 flow [2023-08-29 17:41:26,302 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 197 places, 193 transitions, 389 flow [2023-08-29 17:41:26,303 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 197 places, 193 transitions, 389 flow [2023-08-29 17:41:26,355 INFO L130 PetriNetUnfolder]: 0/193 cut-off events. [2023-08-29 17:41:26,355 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 17:41:26,356 INFO L83 FinitePrefix]: Finished finitePrefix Result has 197 conditions, 193 events. 0/193 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 83 event pairs, 0 based on Foata normal form. 0/175 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-08-29 17:41:26,359 INFO L119 LiptonReduction]: Number of co-enabled transitions 4092 [2023-08-29 17:42:12,600 WARN L222 SmtUtils]: Spent 18.55s on a formula simplification that was a NOOP. DAG size: 287 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 17:42:21,976 WARN L222 SmtUtils]: Spent 9.37s on a formula simplification that was a NOOP. DAG size: 261 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 17:42:32,194 WARN L222 SmtUtils]: Spent 10.21s on a formula simplification that was a NOOP. DAG size: 287 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 17:42:36,487 INFO L134 LiptonReduction]: Checked pairs total: 34878 [2023-08-29 17:42:36,488 INFO L136 LiptonReduction]: Total number of compositions: 155 [2023-08-29 17:42:36,499 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 17:42:36,503 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;@b7824d3, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 17:42:36,503 INFO L358 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2023-08-29 17:42:36,505 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-29 17:42:36,505 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 17:42:36,505 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:42:36,506 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-29 17:42:36,506 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-08-29 17:42:36,510 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:42:36,510 INFO L85 PathProgramCache]: Analyzing trace with hash 632, now seen corresponding path program 1 times [2023-08-29 17:42:36,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:42:36,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031701834] [2023-08-29 17:42:36,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:42:36,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:42:36,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:42:36,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:42:36,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:42:36,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031701834] [2023-08-29 17:42:36,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2031701834] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:42:36,629 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:42:36,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-29 17:42:36,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593657252] [2023-08-29 17:42:36,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:42:36,637 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-29 17:42:36,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:42:36,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-29 17:42:36,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-29 17:42:36,667 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 193 out of 349 [2023-08-29 17:42:36,673 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 73 transitions, 149 flow. Second operand has 2 states, 2 states have (on average 193.5) internal successors, (387), 2 states have internal predecessors, (387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:42:36,673 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:42:36,673 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 193 of 349 [2023-08-29 17:42:36,674 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:42:37,008 INFO L130 PetriNetUnfolder]: 78/405 cut-off events. [2023-08-29 17:42:37,009 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 17:42:37,011 INFO L83 FinitePrefix]: Finished finitePrefix Result has 587 conditions, 405 events. 78/405 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1920 event pairs, 78 based on Foata normal form. 0/364 useless extension candidates. Maximal degree in co-relation 578. Up to 178 conditions per place. [2023-08-29 17:42:37,014 INFO L137 encePairwiseOnDemand]: 341/349 looper letters, 21 selfloop transitions, 0 changer transitions 0/65 dead transitions. [2023-08-29 17:42:37,014 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 65 transitions, 175 flow [2023-08-29 17:42:37,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-29 17:42:37,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-29 17:42:37,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 415 transitions. [2023-08-29 17:42:37,027 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5945558739255015 [2023-08-29 17:42:37,028 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 415 transitions. [2023-08-29 17:42:37,029 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 415 transitions. [2023-08-29 17:42:37,030 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:42:37,032 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 415 transitions. [2023-08-29 17:42:37,036 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 207.5) internal successors, (415), 2 states have internal predecessors, (415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:42:37,040 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 349.0) internal successors, (1047), 3 states have internal predecessors, (1047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:42:37,041 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 349.0) internal successors, (1047), 3 states have internal predecessors, (1047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:42:37,043 INFO L175 Difference]: Start difference. First operand has 77 places, 73 transitions, 149 flow. Second operand 2 states and 415 transitions. [2023-08-29 17:42:37,044 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 65 transitions, 175 flow [2023-08-29 17:42:37,046 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 65 transitions, 174 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 17:42:37,047 INFO L231 Difference]: Finished difference. Result has 69 places, 65 transitions, 132 flow [2023-08-29 17:42:37,049 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=349, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=132, PETRI_PLACES=69, PETRI_TRANSITIONS=65} [2023-08-29 17:42:37,052 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, -8 predicate places. [2023-08-29 17:42:37,052 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 65 transitions, 132 flow [2023-08-29 17:42:37,053 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 193.5) internal successors, (387), 2 states have internal predecessors, (387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:42:37,053 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:42:37,053 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-29 17:42:37,053 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-29 17:42:37,054 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-08-29 17:42:37,054 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:42:37,054 INFO L85 PathProgramCache]: Analyzing trace with hash 607996781, now seen corresponding path program 1 times [2023-08-29 17:42:37,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:42:37,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097590992] [2023-08-29 17:42:37,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:42:37,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:42:37,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:42:37,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:42:37,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:42:37,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097590992] [2023-08-29 17:42:37,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1097590992] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:42:37,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:42:37,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 17:42:37,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331575591] [2023-08-29 17:42:37,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:42:37,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 17:42:37,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:42:37,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 17:42:37,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 17:42:37,326 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 177 out of 349 [2023-08-29 17:42:37,327 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 65 transitions, 132 flow. Second operand has 3 states, 3 states have (on average 178.66666666666666) internal successors, (536), 3 states have internal predecessors, (536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:42:37,328 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:42:37,328 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 177 of 349 [2023-08-29 17:42:37,328 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:42:37,679 INFO L130 PetriNetUnfolder]: 119/489 cut-off events. [2023-08-29 17:42:37,679 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 17:42:37,681 INFO L83 FinitePrefix]: Finished finitePrefix Result has 758 conditions, 489 events. 119/489 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 2352 event pairs, 119 based on Foata normal form. 0/466 useless extension candidates. Maximal degree in co-relation 755. Up to 264 conditions per place. [2023-08-29 17:42:37,683 INFO L137 encePairwiseOnDemand]: 345/349 looper letters, 25 selfloop transitions, 1 changer transitions 0/62 dead transitions. [2023-08-29 17:42:37,683 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 62 transitions, 178 flow [2023-08-29 17:42:37,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 17:42:37,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 17:42:37,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 560 transitions. [2023-08-29 17:42:37,686 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5348615090735435 [2023-08-29 17:42:37,686 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 560 transitions. [2023-08-29 17:42:37,686 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 560 transitions. [2023-08-29 17:42:37,687 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:42:37,687 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 560 transitions. [2023-08-29 17:42:37,688 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 186.66666666666666) internal successors, (560), 3 states have internal predecessors, (560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:42:37,691 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 349.0) internal successors, (1396), 4 states have internal predecessors, (1396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:42:37,692 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 349.0) internal successors, (1396), 4 states have internal predecessors, (1396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:42:37,692 INFO L175 Difference]: Start difference. First operand has 69 places, 65 transitions, 132 flow. Second operand 3 states and 560 transitions. [2023-08-29 17:42:37,692 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 62 transitions, 178 flow [2023-08-29 17:42:37,693 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 62 transitions, 178 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 17:42:37,694 INFO L231 Difference]: Finished difference. Result has 68 places, 62 transitions, 128 flow [2023-08-29 17:42:37,694 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=349, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=128, PETRI_PLACES=68, PETRI_TRANSITIONS=62} [2023-08-29 17:42:37,695 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, -9 predicate places. [2023-08-29 17:42:37,695 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 62 transitions, 128 flow [2023-08-29 17:42:37,696 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 178.66666666666666) internal successors, (536), 3 states have internal predecessors, (536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:42:37,696 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:42:37,696 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:42:37,696 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-29 17:42:37,696 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-08-29 17:42:37,697 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:42:37,697 INFO L85 PathProgramCache]: Analyzing trace with hash 2109094868, now seen corresponding path program 1 times [2023-08-29 17:42:37,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:42:37,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397562500] [2023-08-29 17:42:37,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:42:37,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:42:37,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:42:38,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:42:38,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:42:38,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397562500] [2023-08-29 17:42:38,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [397562500] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:42:38,241 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:42:38,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 17:42:38,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466359046] [2023-08-29 17:42:38,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:42:38,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 17:42:38,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:42:38,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 17:42:38,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 17:42:38,498 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 349 [2023-08-29 17:42:38,499 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 62 transitions, 128 flow. Second operand has 6 states, 6 states have (on average 144.5) internal successors, (867), 6 states have internal predecessors, (867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:42:38,499 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:42:38,499 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 349 [2023-08-29 17:42:38,499 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:42:39,291 INFO L130 PetriNetUnfolder]: 419/1084 cut-off events. [2023-08-29 17:42:39,292 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 17:42:39,293 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1976 conditions, 1084 events. 419/1084 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 5335 event pairs, 312 based on Foata normal form. 0/1039 useless extension candidates. Maximal degree in co-relation 1972. Up to 802 conditions per place. [2023-08-29 17:42:39,297 INFO L137 encePairwiseOnDemand]: 335/349 looper letters, 66 selfloop transitions, 37 changer transitions 0/122 dead transitions. [2023-08-29 17:42:39,297 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 122 transitions, 454 flow [2023-08-29 17:42:39,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 17:42:39,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 17:42:39,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 962 transitions. [2023-08-29 17:42:39,300 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4594078319006686 [2023-08-29 17:42:39,300 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 962 transitions. [2023-08-29 17:42:39,301 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 962 transitions. [2023-08-29 17:42:39,301 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:42:39,301 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 962 transitions. [2023-08-29 17:42:39,304 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 160.33333333333334) internal successors, (962), 6 states have internal predecessors, (962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:42:39,307 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 349.0) internal successors, (2443), 7 states have internal predecessors, (2443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:42:39,308 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 349.0) internal successors, (2443), 7 states have internal predecessors, (2443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:42:39,308 INFO L175 Difference]: Start difference. First operand has 68 places, 62 transitions, 128 flow. Second operand 6 states and 962 transitions. [2023-08-29 17:42:39,308 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 122 transitions, 454 flow [2023-08-29 17:42:39,309 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 122 transitions, 453 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 17:42:39,311 INFO L231 Difference]: Finished difference. Result has 76 places, 98 transitions, 339 flow [2023-08-29 17:42:39,311 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=349, PETRI_DIFFERENCE_MINUEND_FLOW=127, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=339, PETRI_PLACES=76, PETRI_TRANSITIONS=98} [2023-08-29 17:42:39,312 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, -1 predicate places. [2023-08-29 17:42:39,312 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 98 transitions, 339 flow [2023-08-29 17:42:39,313 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 144.5) internal successors, (867), 6 states have internal predecessors, (867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:42:39,313 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:42:39,313 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:42:39,313 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-29 17:42:39,314 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-08-29 17:42:39,314 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:42:39,314 INFO L85 PathProgramCache]: Analyzing trace with hash -6498235, now seen corresponding path program 1 times [2023-08-29 17:42:39,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:42:39,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219360955] [2023-08-29 17:42:39,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:42:39,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:42:39,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:42:39,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:42:39,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:42:39,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219360955] [2023-08-29 17:42:39,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219360955] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:42:39,637 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:42:39,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 17:42:39,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320681835] [2023-08-29 17:42:39,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:42:39,638 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 17:42:39,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:42:39,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 17:42:39,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 17:42:39,889 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 349 [2023-08-29 17:42:39,891 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 98 transitions, 339 flow. Second operand has 6 states, 6 states have (on average 142.5) internal successors, (855), 6 states have internal predecessors, (855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:42:39,891 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:42:39,891 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 349 [2023-08-29 17:42:39,891 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:42:40,784 INFO L130 PetriNetUnfolder]: 622/1669 cut-off events. [2023-08-29 17:42:40,784 INFO L131 PetriNetUnfolder]: For 233/246 co-relation queries the response was YES. [2023-08-29 17:42:40,787 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3630 conditions, 1669 events. 622/1669 cut-off events. For 233/246 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 9990 event pairs, 78 based on Foata normal form. 0/1574 useless extension candidates. Maximal degree in co-relation 3622. Up to 707 conditions per place. [2023-08-29 17:42:40,792 INFO L137 encePairwiseOnDemand]: 321/349 looper letters, 135 selfloop transitions, 77 changer transitions 0/246 dead transitions. [2023-08-29 17:42:40,793 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 246 transitions, 1150 flow [2023-08-29 17:42:40,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 17:42:40,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 17:42:40,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1036 transitions. [2023-08-29 17:42:40,796 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49474689589302767 [2023-08-29 17:42:40,796 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1036 transitions. [2023-08-29 17:42:40,796 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1036 transitions. [2023-08-29 17:42:40,797 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:42:40,797 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1036 transitions. [2023-08-29 17:42:40,799 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 172.66666666666666) internal successors, (1036), 6 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:42:40,802 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 349.0) internal successors, (2443), 7 states have internal predecessors, (2443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:42:40,803 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 349.0) internal successors, (2443), 7 states have internal predecessors, (2443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:42:40,803 INFO L175 Difference]: Start difference. First operand has 76 places, 98 transitions, 339 flow. Second operand 6 states and 1036 transitions. [2023-08-29 17:42:40,804 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 246 transitions, 1150 flow [2023-08-29 17:42:40,808 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 246 transitions, 1150 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 17:42:40,811 INFO L231 Difference]: Finished difference. Result has 85 places, 171 transitions, 913 flow [2023-08-29 17:42:40,812 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=349, PETRI_DIFFERENCE_MINUEND_FLOW=337, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=913, PETRI_PLACES=85, PETRI_TRANSITIONS=171} [2023-08-29 17:42:40,812 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 8 predicate places. [2023-08-29 17:42:40,812 INFO L495 AbstractCegarLoop]: Abstraction has has 85 places, 171 transitions, 913 flow [2023-08-29 17:42:40,813 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 142.5) internal successors, (855), 6 states have internal predecessors, (855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:42:40,813 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:42:40,813 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:42:40,813 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-29 17:42:40,814 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-08-29 17:42:40,814 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:42:40,814 INFO L85 PathProgramCache]: Analyzing trace with hash 878072052, now seen corresponding path program 1 times [2023-08-29 17:42:40,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:42:40,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832822736] [2023-08-29 17:42:40,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:42:40,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:42:40,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:42:41,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:42:41,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:42:41,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832822736] [2023-08-29 17:42:41,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [832822736] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:42:41,360 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:42:41,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 17:42:41,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194291445] [2023-08-29 17:42:41,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:42:41,361 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 17:42:41,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:42:41,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 17:42:41,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-08-29 17:42:41,995 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 139 out of 349 [2023-08-29 17:42:41,997 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 171 transitions, 913 flow. Second operand has 10 states, 10 states have (on average 140.2) internal successors, (1402), 10 states have internal predecessors, (1402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:42:41,997 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:42:41,997 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 139 of 349 [2023-08-29 17:42:41,997 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:42:43,311 INFO L130 PetriNetUnfolder]: 743/1912 cut-off events. [2023-08-29 17:42:43,312 INFO L131 PetriNetUnfolder]: For 1437/1445 co-relation queries the response was YES. [2023-08-29 17:42:43,316 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5654 conditions, 1912 events. 743/1912 cut-off events. For 1437/1445 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 11371 event pairs, 245 based on Foata normal form. 0/1845 useless extension candidates. Maximal degree in co-relation 5641. Up to 1219 conditions per place. [2023-08-29 17:42:43,323 INFO L137 encePairwiseOnDemand]: 335/349 looper letters, 235 selfloop transitions, 64 changer transitions 2/335 dead transitions. [2023-08-29 17:42:43,324 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 335 transitions, 2307 flow [2023-08-29 17:42:43,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-08-29 17:42:43,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-08-29 17:42:43,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2273 transitions. [2023-08-29 17:42:43,330 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4341929321872015 [2023-08-29 17:42:43,330 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2273 transitions. [2023-08-29 17:42:43,330 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2273 transitions. [2023-08-29 17:42:43,331 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:42:43,332 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2273 transitions. [2023-08-29 17:42:43,336 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 151.53333333333333) internal successors, (2273), 15 states have internal predecessors, (2273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:42:43,343 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 349.0) internal successors, (5584), 16 states have internal predecessors, (5584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:42:43,345 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 349.0) internal successors, (5584), 16 states have internal predecessors, (5584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:42:43,345 INFO L175 Difference]: Start difference. First operand has 85 places, 171 transitions, 913 flow. Second operand 15 states and 2273 transitions. [2023-08-29 17:42:43,345 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 335 transitions, 2307 flow [2023-08-29 17:42:43,354 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 335 transitions, 2289 flow, removed 9 selfloop flow, removed 0 redundant places. [2023-08-29 17:42:43,364 INFO L231 Difference]: Finished difference. Result has 104 places, 203 transitions, 1299 flow [2023-08-29 17:42:43,364 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=349, PETRI_DIFFERENCE_MINUEND_FLOW=895, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=171, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=1299, PETRI_PLACES=104, PETRI_TRANSITIONS=203} [2023-08-29 17:42:43,367 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 27 predicate places. [2023-08-29 17:42:43,367 INFO L495 AbstractCegarLoop]: Abstraction has has 104 places, 203 transitions, 1299 flow [2023-08-29 17:42:43,368 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 140.2) internal successors, (1402), 10 states have internal predecessors, (1402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:42:43,368 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:42:43,368 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:42:43,368 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-29 17:42:43,368 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-08-29 17:42:43,369 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:42:43,369 INFO L85 PathProgramCache]: Analyzing trace with hash -305976718, now seen corresponding path program 1 times [2023-08-29 17:42:43,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:42:43,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756706068] [2023-08-29 17:42:43,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:42:43,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:42:43,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:42:43,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:42:43,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:42:43,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756706068] [2023-08-29 17:42:43,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [756706068] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:42:43,859 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:42:43,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 17:42:43,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918049405] [2023-08-29 17:42:43,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:42:43,860 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 17:42:43,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:42:43,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 17:42:43,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-08-29 17:42:44,409 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 137 out of 349 [2023-08-29 17:42:44,411 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 203 transitions, 1299 flow. Second operand has 10 states, 10 states have (on average 138.2) internal successors, (1382), 10 states have internal predecessors, (1382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:42:44,411 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:42:44,411 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 137 of 349 [2023-08-29 17:42:44,411 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:42:45,938 INFO L130 PetriNetUnfolder]: 774/2149 cut-off events. [2023-08-29 17:42:45,939 INFO L131 PetriNetUnfolder]: For 2159/2202 co-relation queries the response was YES. [2023-08-29 17:42:45,944 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6872 conditions, 2149 events. 774/2149 cut-off events. For 2159/2202 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 14300 event pairs, 111 based on Foata normal form. 19/2091 useless extension candidates. Maximal degree in co-relation 6853. Up to 622 conditions per place. [2023-08-29 17:42:45,953 INFO L137 encePairwiseOnDemand]: 317/349 looper letters, 261 selfloop transitions, 121 changer transitions 2/424 dead transitions. [2023-08-29 17:42:45,953 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 424 transitions, 3169 flow [2023-08-29 17:42:45,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-29 17:42:45,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-29 17:42:45,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1936 transitions. [2023-08-29 17:42:45,958 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46227316141356256 [2023-08-29 17:42:45,959 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1936 transitions. [2023-08-29 17:42:45,959 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1936 transitions. [2023-08-29 17:42:45,960 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:42:45,960 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1936 transitions. [2023-08-29 17:42:45,963 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 161.33333333333334) internal successors, (1936), 12 states have internal predecessors, (1936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:42:45,969 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 349.0) internal successors, (4537), 13 states have internal predecessors, (4537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:42:45,970 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 349.0) internal successors, (4537), 13 states have internal predecessors, (4537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:42:45,970 INFO L175 Difference]: Start difference. First operand has 104 places, 203 transitions, 1299 flow. Second operand 12 states and 1936 transitions. [2023-08-29 17:42:45,970 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 424 transitions, 3169 flow [2023-08-29 17:42:45,983 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 424 transitions, 3157 flow, removed 6 selfloop flow, removed 0 redundant places. [2023-08-29 17:42:45,990 INFO L231 Difference]: Finished difference. Result has 125 places, 258 transitions, 2206 flow [2023-08-29 17:42:45,990 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=349, PETRI_DIFFERENCE_MINUEND_FLOW=1293, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=203, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=67, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2206, PETRI_PLACES=125, PETRI_TRANSITIONS=258} [2023-08-29 17:42:45,992 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 48 predicate places. [2023-08-29 17:42:45,994 INFO L495 AbstractCegarLoop]: Abstraction has has 125 places, 258 transitions, 2206 flow [2023-08-29 17:42:45,994 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 138.2) internal successors, (1382), 10 states have internal predecessors, (1382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:42:45,995 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:42:45,995 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:42:45,995 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-29 17:42:45,996 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-08-29 17:42:45,996 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:42:45,996 INFO L85 PathProgramCache]: Analyzing trace with hash -126679612, now seen corresponding path program 2 times [2023-08-29 17:42:45,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:42:45,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581969956] [2023-08-29 17:42:45,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:42:45,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:42:46,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:42:46,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:42:46,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:42:46,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581969956] [2023-08-29 17:42:46,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1581969956] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:42:46,441 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:42:46,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 17:42:46,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176900322] [2023-08-29 17:42:46,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:42:46,442 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 17:42:46,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:42:46,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 17:42:46,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-08-29 17:42:47,288 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 137 out of 349 [2023-08-29 17:42:47,289 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 258 transitions, 2206 flow. Second operand has 10 states, 10 states have (on average 138.2) internal successors, (1382), 10 states have internal predecessors, (1382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:42:47,289 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:42:47,289 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 137 of 349 [2023-08-29 17:42:47,290 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:42:49,540 INFO L130 PetriNetUnfolder]: 866/2397 cut-off events. [2023-08-29 17:42:49,540 INFO L131 PetriNetUnfolder]: For 4860/4900 co-relation queries the response was YES. [2023-08-29 17:42:49,548 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8953 conditions, 2397 events. 866/2397 cut-off events. For 4860/4900 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 16281 event pairs, 113 based on Foata normal form. 36/2325 useless extension candidates. Maximal degree in co-relation 8924. Up to 809 conditions per place. [2023-08-29 17:42:49,560 INFO L137 encePairwiseOnDemand]: 328/349 looper letters, 372 selfloop transitions, 95 changer transitions 3/510 dead transitions. [2023-08-29 17:42:49,560 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 510 transitions, 4681 flow [2023-08-29 17:42:49,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-08-29 17:42:49,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-08-29 17:42:49,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2743 transitions. [2023-08-29 17:42:49,569 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43664438077045525 [2023-08-29 17:42:49,569 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2743 transitions. [2023-08-29 17:42:49,569 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2743 transitions. [2023-08-29 17:42:49,571 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:42:49,571 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2743 transitions. [2023-08-29 17:42:49,577 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 152.38888888888889) internal successors, (2743), 18 states have internal predecessors, (2743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:42:49,584 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 349.0) internal successors, (6631), 19 states have internal predecessors, (6631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:42:49,586 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 349.0) internal successors, (6631), 19 states have internal predecessors, (6631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:42:49,586 INFO L175 Difference]: Start difference. First operand has 125 places, 258 transitions, 2206 flow. Second operand 18 states and 2743 transitions. [2023-08-29 17:42:49,586 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 510 transitions, 4681 flow [2023-08-29 17:42:49,614 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 510 transitions, 4669 flow, removed 6 selfloop flow, removed 0 redundant places. [2023-08-29 17:42:49,620 INFO L231 Difference]: Finished difference. Result has 148 places, 301 transitions, 2901 flow [2023-08-29 17:42:49,621 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=349, PETRI_DIFFERENCE_MINUEND_FLOW=2194, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=258, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=53, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=173, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=2901, PETRI_PLACES=148, PETRI_TRANSITIONS=301} [2023-08-29 17:42:49,622 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 71 predicate places. [2023-08-29 17:42:49,622 INFO L495 AbstractCegarLoop]: Abstraction has has 148 places, 301 transitions, 2901 flow [2023-08-29 17:42:49,623 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 138.2) internal successors, (1382), 10 states have internal predecessors, (1382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:42:49,623 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:42:49,623 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:42:49,623 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-29 17:42:49,623 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-08-29 17:42:49,623 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:42:49,624 INFO L85 PathProgramCache]: Analyzing trace with hash -87906598, now seen corresponding path program 3 times [2023-08-29 17:42:49,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:42:49,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677657432] [2023-08-29 17:42:49,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:42:49,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:42:49,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:42:50,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:42:50,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:42:50,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677657432] [2023-08-29 17:42:50,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1677657432] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:42:50,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:42:50,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 17:42:50,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352490932] [2023-08-29 17:42:50,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:42:50,126 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 17:42:50,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:42:50,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 17:42:50,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-08-29 17:42:50,755 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 137 out of 349 [2023-08-29 17:42:50,756 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 301 transitions, 2901 flow. Second operand has 10 states, 10 states have (on average 138.2) internal successors, (1382), 10 states have internal predecessors, (1382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:42:50,757 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:42:50,757 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 137 of 349 [2023-08-29 17:42:50,757 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:42:52,793 INFO L130 PetriNetUnfolder]: 1063/2950 cut-off events. [2023-08-29 17:42:52,794 INFO L131 PetriNetUnfolder]: For 9542/9603 co-relation queries the response was YES. [2023-08-29 17:42:52,807 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12303 conditions, 2950 events. 1063/2950 cut-off events. For 9542/9603 co-relation queries the response was YES. Maximal size of possible extension queue 98. Compared 21372 event pairs, 121 based on Foata normal form. 25/2864 useless extension candidates. Maximal degree in co-relation 12268. Up to 824 conditions per place. [2023-08-29 17:42:52,821 INFO L137 encePairwiseOnDemand]: 317/349 looper letters, 321 selfloop transitions, 162 changer transitions 2/525 dead transitions. [2023-08-29 17:42:52,821 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 525 transitions, 5432 flow [2023-08-29 17:42:52,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-08-29 17:42:52,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-08-29 17:42:52,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2078 transitions. [2023-08-29 17:42:52,826 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45801190213797666 [2023-08-29 17:42:52,826 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2078 transitions. [2023-08-29 17:42:52,827 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2078 transitions. [2023-08-29 17:42:52,828 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:42:52,828 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2078 transitions. [2023-08-29 17:42:52,831 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 159.84615384615384) internal successors, (2078), 13 states have internal predecessors, (2078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:42:52,837 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 349.0) internal successors, (4886), 14 states have internal predecessors, (4886), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:42:52,838 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 349.0) internal successors, (4886), 14 states have internal predecessors, (4886), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:42:52,838 INFO L175 Difference]: Start difference. First operand has 148 places, 301 transitions, 2901 flow. Second operand 13 states and 2078 transitions. [2023-08-29 17:42:52,839 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 160 places, 525 transitions, 5432 flow [2023-08-29 17:42:52,907 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 159 places, 525 transitions, 5420 flow, removed 3 selfloop flow, removed 1 redundant places. [2023-08-29 17:42:52,915 INFO L231 Difference]: Finished difference. Result has 169 places, 354 transitions, 4241 flow [2023-08-29 17:42:52,916 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=349, PETRI_DIFFERENCE_MINUEND_FLOW=2891, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=301, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=111, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=156, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=4241, PETRI_PLACES=169, PETRI_TRANSITIONS=354} [2023-08-29 17:42:52,917 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 92 predicate places. [2023-08-29 17:42:52,917 INFO L495 AbstractCegarLoop]: Abstraction has has 169 places, 354 transitions, 4241 flow [2023-08-29 17:42:52,918 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 138.2) internal successors, (1382), 10 states have internal predecessors, (1382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:42:52,918 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:42:52,918 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:42:52,918 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-29 17:42:52,918 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-08-29 17:42:52,922 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:42:52,922 INFO L85 PathProgramCache]: Analyzing trace with hash -220077052, now seen corresponding path program 4 times [2023-08-29 17:42:52,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:42:52,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245063842] [2023-08-29 17:42:52,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:42:52,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:42:52,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:42:53,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:42:53,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:42:53,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245063842] [2023-08-29 17:42:53,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245063842] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:42:53,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:42:53,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 17:42:53,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913156452] [2023-08-29 17:42:53,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:42:53,348 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 17:42:53,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:42:53,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 17:42:53,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-08-29 17:42:53,893 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 137 out of 349 [2023-08-29 17:42:53,894 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 169 places, 354 transitions, 4241 flow. Second operand has 10 states, 10 states have (on average 138.2) internal successors, (1382), 10 states have internal predecessors, (1382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:42:53,894 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:42:53,894 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 137 of 349 [2023-08-29 17:42:53,894 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:42:56,162 INFO L130 PetriNetUnfolder]: 1585/4362 cut-off events. [2023-08-29 17:42:56,162 INFO L131 PetriNetUnfolder]: For 21141/21268 co-relation queries the response was YES. [2023-08-29 17:42:56,183 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20077 conditions, 4362 events. 1585/4362 cut-off events. For 21141/21268 co-relation queries the response was YES. Maximal size of possible extension queue 158. Compared 35312 event pairs, 136 based on Foata normal form. 64/4241 useless extension candidates. Maximal degree in co-relation 20032. Up to 1009 conditions per place. [2023-08-29 17:42:56,202 INFO L137 encePairwiseOnDemand]: 321/349 looper letters, 449 selfloop transitions, 262 changer transitions 3/754 dead transitions. [2023-08-29 17:42:56,202 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 184 places, 754 transitions, 9509 flow [2023-08-29 17:42:56,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-08-29 17:42:56,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-08-29 17:42:56,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2510 transitions. [2023-08-29 17:42:56,209 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44949856733524357 [2023-08-29 17:42:56,209 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 2510 transitions. [2023-08-29 17:42:56,209 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 2510 transitions. [2023-08-29 17:42:56,210 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:42:56,210 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 2510 transitions. [2023-08-29 17:42:56,215 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 156.875) internal successors, (2510), 16 states have internal predecessors, (2510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:42:56,222 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 349.0) internal successors, (5933), 17 states have internal predecessors, (5933), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:42:56,223 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 349.0) internal successors, (5933), 17 states have internal predecessors, (5933), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:42:56,223 INFO L175 Difference]: Start difference. First operand has 169 places, 354 transitions, 4241 flow. Second operand 16 states and 2510 transitions. [2023-08-29 17:42:56,224 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 184 places, 754 transitions, 9509 flow [2023-08-29 17:42:56,403 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 183 places, 754 transitions, 9465 flow, removed 14 selfloop flow, removed 1 redundant places. [2023-08-29 17:42:56,413 INFO L231 Difference]: Finished difference. Result has 193 places, 486 transitions, 7269 flow [2023-08-29 17:42:56,414 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=349, PETRI_DIFFERENCE_MINUEND_FLOW=4217, PETRI_DIFFERENCE_MINUEND_PLACES=168, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=354, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=143, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=150, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=7269, PETRI_PLACES=193, PETRI_TRANSITIONS=486} [2023-08-29 17:42:56,415 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 116 predicate places. [2023-08-29 17:42:56,415 INFO L495 AbstractCegarLoop]: Abstraction has has 193 places, 486 transitions, 7269 flow [2023-08-29 17:42:56,416 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 138.2) internal successors, (1382), 10 states have internal predecessors, (1382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:42:56,417 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:42:56,417 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:42:56,417 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-29 17:42:56,419 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-08-29 17:42:56,419 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:42:56,419 INFO L85 PathProgramCache]: Analyzing trace with hash -994184910, now seen corresponding path program 5 times [2023-08-29 17:42:56,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:42:56,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685183543] [2023-08-29 17:42:56,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:42:56,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:42:56,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:42:56,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:42:56,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:42:56,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685183543] [2023-08-29 17:42:56,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1685183543] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:42:56,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:42:56,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 17:42:56,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999693735] [2023-08-29 17:42:56,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:42:56,842 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 17:42:56,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:42:56,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 17:42:56,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-08-29 17:42:57,475 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 137 out of 349 [2023-08-29 17:42:57,476 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 193 places, 486 transitions, 7269 flow. Second operand has 10 states, 10 states have (on average 138.2) internal successors, (1382), 10 states have internal predecessors, (1382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:42:57,476 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:42:57,476 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 137 of 349 [2023-08-29 17:42:57,476 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:43:00,252 INFO L130 PetriNetUnfolder]: 1966/5382 cut-off events. [2023-08-29 17:43:00,253 INFO L131 PetriNetUnfolder]: For 40543/40783 co-relation queries the response was YES. [2023-08-29 17:43:00,276 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27447 conditions, 5382 events. 1966/5382 cut-off events. For 40543/40783 co-relation queries the response was YES. Maximal size of possible extension queue 202. Compared 45887 event pairs, 337 based on Foata normal form. 126/5286 useless extension candidates. Maximal degree in co-relation 27392. Up to 1276 conditions per place. [2023-08-29 17:43:00,298 INFO L137 encePairwiseOnDemand]: 317/349 looper letters, 439 selfloop transitions, 315 changer transitions 2/796 dead transitions. [2023-08-29 17:43:00,299 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 206 places, 796 transitions, 12046 flow [2023-08-29 17:43:00,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-29 17:43:00,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-29 17:43:00,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2218 transitions. [2023-08-29 17:43:00,305 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4539500613999181 [2023-08-29 17:43:00,305 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2218 transitions. [2023-08-29 17:43:00,305 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2218 transitions. [2023-08-29 17:43:00,306 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:43:00,306 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2218 transitions. [2023-08-29 17:43:00,310 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 158.42857142857142) internal successors, (2218), 14 states have internal predecessors, (2218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:43:00,316 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 349.0) internal successors, (5235), 15 states have internal predecessors, (5235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:43:00,317 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 349.0) internal successors, (5235), 15 states have internal predecessors, (5235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:43:00,317 INFO L175 Difference]: Start difference. First operand has 193 places, 486 transitions, 7269 flow. Second operand 14 states and 2218 transitions. [2023-08-29 17:43:00,317 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 206 places, 796 transitions, 12046 flow [2023-08-29 17:43:00,620 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 203 places, 796 transitions, 11962 flow, removed 35 selfloop flow, removed 3 redundant places. [2023-08-29 17:43:00,632 INFO L231 Difference]: Finished difference. Result has 215 places, 586 transitions, 10282 flow [2023-08-29 17:43:00,633 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=349, PETRI_DIFFERENCE_MINUEND_FLOW=7197, PETRI_DIFFERENCE_MINUEND_PLACES=190, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=486, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=220, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=208, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=10282, PETRI_PLACES=215, PETRI_TRANSITIONS=586} [2023-08-29 17:43:00,634 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 138 predicate places. [2023-08-29 17:43:00,634 INFO L495 AbstractCegarLoop]: Abstraction has has 215 places, 586 transitions, 10282 flow [2023-08-29 17:43:00,635 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 138.2) internal successors, (1382), 10 states have internal predecessors, (1382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:43:00,635 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:43:00,635 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:43:00,635 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-29 17:43:00,635 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-08-29 17:43:00,636 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:43:00,636 INFO L85 PathProgramCache]: Analyzing trace with hash -537716208, now seen corresponding path program 6 times [2023-08-29 17:43:00,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:43:00,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834036272] [2023-08-29 17:43:00,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:43:00,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:43:00,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:43:01,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:43:01,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:43:01,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834036272] [2023-08-29 17:43:01,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [834036272] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:43:01,144 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:43:01,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 17:43:01,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143579351] [2023-08-29 17:43:01,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:43:01,145 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 17:43:01,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:43:01,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 17:43:01,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-08-29 17:43:01,826 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 137 out of 349 [2023-08-29 17:43:01,827 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 215 places, 586 transitions, 10282 flow. Second operand has 10 states, 10 states have (on average 138.2) internal successors, (1382), 10 states have internal predecessors, (1382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:43:01,827 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:43:01,827 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 137 of 349 [2023-08-29 17:43:01,827 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:43:04,600 INFO L130 PetriNetUnfolder]: 2174/5927 cut-off events. [2023-08-29 17:43:04,601 INFO L131 PetriNetUnfolder]: For 60598/60869 co-relation queries the response was YES. [2023-08-29 17:43:04,630 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32936 conditions, 5927 events. 2174/5927 cut-off events. For 60598/60869 co-relation queries the response was YES. Maximal size of possible extension queue 230. Compared 51892 event pairs, 242 based on Foata normal form. 159/5846 useless extension candidates. Maximal degree in co-relation 32870. Up to 1661 conditions per place. [2023-08-29 17:43:04,652 INFO L137 encePairwiseOnDemand]: 321/349 looper letters, 453 selfloop transitions, 400 changer transitions 3/896 dead transitions. [2023-08-29 17:43:04,653 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 232 places, 896 transitions, 15080 flow [2023-08-29 17:43:04,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-08-29 17:43:04,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-08-29 17:43:04,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2811 transitions. [2023-08-29 17:43:04,657 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.447468958930277 [2023-08-29 17:43:04,657 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2811 transitions. [2023-08-29 17:43:04,657 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2811 transitions. [2023-08-29 17:43:04,658 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:43:04,658 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2811 transitions. [2023-08-29 17:43:04,661 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 156.16666666666666) internal successors, (2811), 18 states have internal predecessors, (2811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:43:04,668 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 349.0) internal successors, (6631), 19 states have internal predecessors, (6631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:43:04,669 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 349.0) internal successors, (6631), 19 states have internal predecessors, (6631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:43:04,669 INFO L175 Difference]: Start difference. First operand has 215 places, 586 transitions, 10282 flow. Second operand 18 states and 2811 transitions. [2023-08-29 17:43:04,669 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 232 places, 896 transitions, 15080 flow [2023-08-29 17:43:05,260 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 232 places, 896 transitions, 15026 flow, removed 27 selfloop flow, removed 0 redundant places. [2023-08-29 17:43:05,273 INFO L231 Difference]: Finished difference. Result has 244 places, 666 transitions, 13503 flow [2023-08-29 17:43:05,274 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=349, PETRI_DIFFERENCE_MINUEND_FLOW=10240, PETRI_DIFFERENCE_MINUEND_PLACES=215, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=586, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=321, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=208, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=13503, PETRI_PLACES=244, PETRI_TRANSITIONS=666} [2023-08-29 17:43:05,274 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 167 predicate places. [2023-08-29 17:43:05,274 INFO L495 AbstractCegarLoop]: Abstraction has has 244 places, 666 transitions, 13503 flow [2023-08-29 17:43:05,275 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 138.2) internal successors, (1382), 10 states have internal predecessors, (1382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:43:05,275 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:43:05,275 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:43:05,275 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-29 17:43:05,275 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-08-29 17:43:05,276 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:43:05,276 INFO L85 PathProgramCache]: Analyzing trace with hash 67900634, now seen corresponding path program 7 times [2023-08-29 17:43:05,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:43:05,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307945179] [2023-08-29 17:43:05,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:43:05,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:43:05,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:43:05,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:43:05,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:43:05,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307945179] [2023-08-29 17:43:05,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [307945179] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:43:05,657 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:43:05,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 17:43:05,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531801780] [2023-08-29 17:43:05,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:43:05,658 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 17:43:05,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:43:05,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 17:43:05,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-08-29 17:43:06,300 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 137 out of 349 [2023-08-29 17:43:06,301 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 244 places, 666 transitions, 13503 flow. Second operand has 10 states, 10 states have (on average 138.2) internal successors, (1382), 10 states have internal predecessors, (1382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:43:06,301 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:43:06,301 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 137 of 349 [2023-08-29 17:43:06,301 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:43:09,255 INFO L130 PetriNetUnfolder]: 2505/6881 cut-off events. [2023-08-29 17:43:09,255 INFO L131 PetriNetUnfolder]: For 94234/94677 co-relation queries the response was YES. [2023-08-29 17:43:09,296 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41336 conditions, 6881 events. 2505/6881 cut-off events. For 94234/94677 co-relation queries the response was YES. Maximal size of possible extension queue 268. Compared 62640 event pairs, 366 based on Foata normal form. 272/6862 useless extension candidates. Maximal degree in co-relation 41257. Up to 1737 conditions per place. [2023-08-29 17:43:09,319 INFO L137 encePairwiseOnDemand]: 317/349 looper letters, 545 selfloop transitions, 403 changer transitions 2/990 dead transitions. [2023-08-29 17:43:09,319 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 257 places, 990 transitions, 19781 flow [2023-08-29 17:43:09,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-29 17:43:09,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-29 17:43:09,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2205 transitions. [2023-08-29 17:43:09,324 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4512893982808023 [2023-08-29 17:43:09,324 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2205 transitions. [2023-08-29 17:43:09,324 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2205 transitions. [2023-08-29 17:43:09,325 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:43:09,325 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2205 transitions. [2023-08-29 17:43:09,329 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 157.5) internal successors, (2205), 14 states have internal predecessors, (2205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:43:09,333 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 349.0) internal successors, (5235), 15 states have internal predecessors, (5235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:43:09,334 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 349.0) internal successors, (5235), 15 states have internal predecessors, (5235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:43:09,334 INFO L175 Difference]: Start difference. First operand has 244 places, 666 transitions, 13503 flow. Second operand 14 states and 2205 transitions. [2023-08-29 17:43:09,334 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 257 places, 990 transitions, 19781 flow [2023-08-29 17:43:10,008 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 252 places, 990 transitions, 19709 flow, removed 25 selfloop flow, removed 5 redundant places. [2023-08-29 17:43:10,023 INFO L231 Difference]: Finished difference. Result has 264 places, 760 transitions, 17397 flow [2023-08-29 17:43:10,024 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=349, PETRI_DIFFERENCE_MINUEND_FLOW=13450, PETRI_DIFFERENCE_MINUEND_PLACES=239, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=666, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=313, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=292, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=17397, PETRI_PLACES=264, PETRI_TRANSITIONS=760} [2023-08-29 17:43:10,024 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 187 predicate places. [2023-08-29 17:43:10,024 INFO L495 AbstractCegarLoop]: Abstraction has has 264 places, 760 transitions, 17397 flow [2023-08-29 17:43:10,025 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 138.2) internal successors, (1382), 10 states have internal predecessors, (1382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:43:10,025 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:43:10,025 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:43:10,025 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-29 17:43:10,025 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-08-29 17:43:10,026 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:43:10,026 INFO L85 PathProgramCache]: Analyzing trace with hash -1300001976, now seen corresponding path program 8 times [2023-08-29 17:43:10,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:43:10,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464629341] [2023-08-29 17:43:10,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:43:10,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:43:10,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:43:10,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:43:10,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:43:10,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464629341] [2023-08-29 17:43:10,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1464629341] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:43:10,498 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:43:10,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 17:43:10,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654221066] [2023-08-29 17:43:10,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:43:10,499 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 17:43:10,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:43:10,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 17:43:10,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-08-29 17:43:11,288 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 137 out of 349 [2023-08-29 17:43:11,289 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 264 places, 760 transitions, 17397 flow. Second operand has 10 states, 10 states have (on average 138.2) internal successors, (1382), 10 states have internal predecessors, (1382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:43:11,289 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:43:11,289 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 137 of 349 [2023-08-29 17:43:11,289 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:43:14,494 INFO L130 PetriNetUnfolder]: 2663/7313 cut-off events. [2023-08-29 17:43:14,494 INFO L131 PetriNetUnfolder]: For 125016/125463 co-relation queries the response was YES. [2023-08-29 17:43:14,546 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46742 conditions, 7313 events. 2663/7313 cut-off events. For 125016/125463 co-relation queries the response was YES. Maximal size of possible extension queue 296. Compared 67785 event pairs, 295 based on Foata normal form. 269/7268 useless extension candidates. Maximal degree in co-relation 46652. Up to 1787 conditions per place. [2023-08-29 17:43:14,568 INFO L137 encePairwiseOnDemand]: 321/349 looper letters, 543 selfloop transitions, 477 changer transitions 3/1063 dead transitions. [2023-08-29 17:43:14,568 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 280 places, 1063 transitions, 22911 flow [2023-08-29 17:43:14,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-08-29 17:43:14,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-08-29 17:43:14,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2660 transitions. [2023-08-29 17:43:14,572 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4483397943704702 [2023-08-29 17:43:14,572 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2660 transitions. [2023-08-29 17:43:14,572 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2660 transitions. [2023-08-29 17:43:14,573 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:43:14,573 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2660 transitions. [2023-08-29 17:43:14,577 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 156.47058823529412) internal successors, (2660), 17 states have internal predecessors, (2660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:43:14,582 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 349.0) internal successors, (6282), 18 states have internal predecessors, (6282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:43:14,583 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 349.0) internal successors, (6282), 18 states have internal predecessors, (6282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:43:14,583 INFO L175 Difference]: Start difference. First operand has 264 places, 760 transitions, 17397 flow. Second operand 17 states and 2660 transitions. [2023-08-29 17:43:14,583 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 280 places, 1063 transitions, 22911 flow [2023-08-29 17:43:15,591 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 280 places, 1063 transitions, 22829 flow, removed 41 selfloop flow, removed 0 redundant places. [2023-08-29 17:43:15,609 INFO L231 Difference]: Finished difference. Result has 291 places, 825 transitions, 20954 flow [2023-08-29 17:43:15,610 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=349, PETRI_DIFFERENCE_MINUEND_FLOW=17325, PETRI_DIFFERENCE_MINUEND_PLACES=264, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=760, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=412, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=295, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=20954, PETRI_PLACES=291, PETRI_TRANSITIONS=825} [2023-08-29 17:43:15,611 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 214 predicate places. [2023-08-29 17:43:15,611 INFO L495 AbstractCegarLoop]: Abstraction has has 291 places, 825 transitions, 20954 flow [2023-08-29 17:43:15,612 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 138.2) internal successors, (1382), 10 states have internal predecessors, (1382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:43:15,612 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:43:15,612 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:43:15,612 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-29 17:43:15,612 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-08-29 17:43:15,612 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:43:15,613 INFO L85 PathProgramCache]: Analyzing trace with hash -1012024290, now seen corresponding path program 9 times [2023-08-29 17:43:15,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:43:15,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801038481] [2023-08-29 17:43:15,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:43:15,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:43:15,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:43:15,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:43:15,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:43:15,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801038481] [2023-08-29 17:43:15,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [801038481] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:43:15,969 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:43:15,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 17:43:15,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180605089] [2023-08-29 17:43:15,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:43:15,969 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 17:43:15,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:43:15,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 17:43:15,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-08-29 17:43:16,586 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 137 out of 349 [2023-08-29 17:43:16,587 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 291 places, 825 transitions, 20954 flow. Second operand has 10 states, 10 states have (on average 138.2) internal successors, (1382), 10 states have internal predecessors, (1382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:43:16,587 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:43:16,587 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 137 of 349 [2023-08-29 17:43:16,587 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:43:20,783 INFO L130 PetriNetUnfolder]: 2876/7946 cut-off events. [2023-08-29 17:43:20,783 INFO L131 PetriNetUnfolder]: For 169333/169866 co-relation queries the response was YES. [2023-08-29 17:43:20,833 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53884 conditions, 7946 events. 2876/7946 cut-off events. For 169333/169866 co-relation queries the response was YES. Maximal size of possible extension queue 322. Compared 75190 event pairs, 323 based on Foata normal form. 331/7933 useless extension candidates. Maximal degree in co-relation 53782. Up to 2176 conditions per place. [2023-08-29 17:43:20,855 INFO L137 encePairwiseOnDemand]: 318/349 looper letters, 494 selfloop transitions, 560 changer transitions 2/1096 dead transitions. [2023-08-29 17:43:20,856 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 304 places, 1096 transitions, 27092 flow [2023-08-29 17:43:20,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-29 17:43:20,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-29 17:43:20,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2191 transitions. [2023-08-29 17:43:20,859 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4484240687679083 [2023-08-29 17:43:20,859 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2191 transitions. [2023-08-29 17:43:20,859 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2191 transitions. [2023-08-29 17:43:20,860 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:43:20,860 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2191 transitions. [2023-08-29 17:43:20,863 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 156.5) internal successors, (2191), 14 states have internal predecessors, (2191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:43:20,867 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 349.0) internal successors, (5235), 15 states have internal predecessors, (5235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:43:20,867 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 349.0) internal successors, (5235), 15 states have internal predecessors, (5235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:43:20,868 INFO L175 Difference]: Start difference. First operand has 291 places, 825 transitions, 20954 flow. Second operand 14 states and 2191 transitions. [2023-08-29 17:43:20,868 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 304 places, 1096 transitions, 27092 flow [2023-08-29 17:43:21,913 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 300 places, 1096 transitions, 27018 flow, removed 28 selfloop flow, removed 4 redundant places. [2023-08-29 17:43:21,930 INFO L231 Difference]: Finished difference. Result has 312 places, 894 transitions, 25296 flow [2023-08-29 17:43:21,931 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=349, PETRI_DIFFERENCE_MINUEND_FLOW=20888, PETRI_DIFFERENCE_MINUEND_PLACES=287, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=825, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=491, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=281, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=25296, PETRI_PLACES=312, PETRI_TRANSITIONS=894} [2023-08-29 17:43:21,931 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 235 predicate places. [2023-08-29 17:43:21,931 INFO L495 AbstractCegarLoop]: Abstraction has has 312 places, 894 transitions, 25296 flow [2023-08-29 17:43:21,932 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 138.2) internal successors, (1382), 10 states have internal predecessors, (1382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:43:21,932 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:43:21,932 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:43:21,932 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-29 17:43:21,932 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-08-29 17:43:21,932 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:43:21,932 INFO L85 PathProgramCache]: Analyzing trace with hash -1298277360, now seen corresponding path program 10 times [2023-08-29 17:43:21,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:43:21,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752155030] [2023-08-29 17:43:21,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:43:21,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:43:21,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:43:22,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:43:22,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:43:22,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752155030] [2023-08-29 17:43:22,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1752155030] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:43:22,308 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:43:22,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 17:43:22,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645770767] [2023-08-29 17:43:22,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:43:22,309 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 17:43:22,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:43:22,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 17:43:22,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-08-29 17:43:22,970 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 137 out of 349 [2023-08-29 17:43:22,971 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 312 places, 894 transitions, 25296 flow. Second operand has 10 states, 10 states have (on average 138.2) internal successors, (1382), 10 states have internal predecessors, (1382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:43:22,971 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:43:22,971 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 137 of 349 [2023-08-29 17:43:22,971 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:43:26,890 INFO L130 PetriNetUnfolder]: 3040/8411 cut-off events. [2023-08-29 17:43:26,890 INFO L131 PetriNetUnfolder]: For 221956/222507 co-relation queries the response was YES. [2023-08-29 17:43:26,946 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60589 conditions, 8411 events. 3040/8411 cut-off events. For 221956/222507 co-relation queries the response was YES. Maximal size of possible extension queue 348. Compared 80808 event pairs, 359 based on Foata normal form. 337/8382 useless extension candidates. Maximal degree in co-relation 60476. Up to 2462 conditions per place. [2023-08-29 17:43:26,969 INFO L137 encePairwiseOnDemand]: 320/349 looper letters, 454 selfloop transitions, 595 changer transitions 2/1091 dead transitions. [2023-08-29 17:43:26,969 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 324 places, 1091 transitions, 30311 flow [2023-08-29 17:43:26,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-08-29 17:43:26,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-08-29 17:43:26,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2015 transitions. [2023-08-29 17:43:26,971 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44412607449856734 [2023-08-29 17:43:26,972 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2015 transitions. [2023-08-29 17:43:26,972 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2015 transitions. [2023-08-29 17:43:26,972 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:43:26,972 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2015 transitions. [2023-08-29 17:43:26,974 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 155.0) internal successors, (2015), 13 states have internal predecessors, (2015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:43:26,976 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 349.0) internal successors, (4886), 14 states have internal predecessors, (4886), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:43:26,976 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 349.0) internal successors, (4886), 14 states have internal predecessors, (4886), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:43:26,977 INFO L175 Difference]: Start difference. First operand has 312 places, 894 transitions, 25296 flow. Second operand 13 states and 2015 transitions. [2023-08-29 17:43:26,977 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 324 places, 1091 transitions, 30311 flow [2023-08-29 17:43:28,693 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 324 places, 1091 transitions, 30137 flow, removed 87 selfloop flow, removed 0 redundant places. [2023-08-29 17:43:28,712 INFO L231 Difference]: Finished difference. Result has 334 places, 940 transitions, 29146 flow [2023-08-29 17:43:28,713 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=349, PETRI_DIFFERENCE_MINUEND_FLOW=25148, PETRI_DIFFERENCE_MINUEND_PLACES=312, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=894, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=549, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=312, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=29146, PETRI_PLACES=334, PETRI_TRANSITIONS=940} [2023-08-29 17:43:28,713 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 257 predicate places. [2023-08-29 17:43:28,714 INFO L495 AbstractCegarLoop]: Abstraction has has 334 places, 940 transitions, 29146 flow [2023-08-29 17:43:28,714 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 138.2) internal successors, (1382), 10 states have internal predecessors, (1382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:43:28,714 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:43:28,714 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:43:28,714 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-08-29 17:43:28,714 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-08-29 17:43:28,714 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:43:28,714 INFO L85 PathProgramCache]: Analyzing trace with hash -79603558, now seen corresponding path program 11 times [2023-08-29 17:43:28,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:43:28,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140741336] [2023-08-29 17:43:28,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:43:28,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:43:28,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:43:29,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:43:29,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:43:29,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140741336] [2023-08-29 17:43:29,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2140741336] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:43:29,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:43:29,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 17:43:29,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876902349] [2023-08-29 17:43:29,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:43:29,077 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 17:43:29,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:43:29,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 17:43:29,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-08-29 17:43:29,927 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 137 out of 349 [2023-08-29 17:43:29,928 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 334 places, 940 transitions, 29146 flow. Second operand has 10 states, 10 states have (on average 138.2) internal successors, (1382), 10 states have internal predecessors, (1382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:43:29,928 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:43:29,928 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 137 of 349 [2023-08-29 17:43:29,928 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:43:34,655 INFO L130 PetriNetUnfolder]: 3233/8896 cut-off events. [2023-08-29 17:43:34,656 INFO L131 PetriNetUnfolder]: For 286842/287531 co-relation queries the response was YES. [2023-08-29 17:43:34,728 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67714 conditions, 8896 events. 3233/8896 cut-off events. For 286842/287531 co-relation queries the response was YES. Maximal size of possible extension queue 369. Compared 86577 event pairs, 506 based on Foata normal form. 434/8949 useless extension candidates. Maximal degree in co-relation 67591. Up to 2544 conditions per place. [2023-08-29 17:43:34,755 INFO L137 encePairwiseOnDemand]: 317/349 looper letters, 525 selfloop transitions, 629 changer transitions 2/1196 dead transitions. [2023-08-29 17:43:34,756 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 347 places, 1196 transitions, 34993 flow [2023-08-29 17:43:34,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-29 17:43:34,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-29 17:43:34,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2230 transitions. [2023-08-29 17:43:34,758 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4564060581252558 [2023-08-29 17:43:34,758 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2230 transitions. [2023-08-29 17:43:34,758 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2230 transitions. [2023-08-29 17:43:34,759 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:43:34,759 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2230 transitions. [2023-08-29 17:43:34,761 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 159.28571428571428) internal successors, (2230), 14 states have internal predecessors, (2230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:43:34,765 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 349.0) internal successors, (5235), 15 states have internal predecessors, (5235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:43:34,765 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 349.0) internal successors, (5235), 15 states have internal predecessors, (5235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:43:34,766 INFO L175 Difference]: Start difference. First operand has 334 places, 940 transitions, 29146 flow. Second operand 14 states and 2230 transitions. [2023-08-29 17:43:34,766 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 347 places, 1196 transitions, 34993 flow [2023-08-29 17:43:36,997 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 346 places, 1196 transitions, 34852 flow, removed 61 selfloop flow, removed 1 redundant places. [2023-08-29 17:43:37,020 INFO L231 Difference]: Finished difference. Result has 356 places, 994 transitions, 33448 flow [2023-08-29 17:43:37,020 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=349, PETRI_DIFFERENCE_MINUEND_FLOW=29007, PETRI_DIFFERENCE_MINUEND_PLACES=333, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=940, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=576, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=326, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=33448, PETRI_PLACES=356, PETRI_TRANSITIONS=994} [2023-08-29 17:43:37,021 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 279 predicate places. [2023-08-29 17:43:37,021 INFO L495 AbstractCegarLoop]: Abstraction has has 356 places, 994 transitions, 33448 flow [2023-08-29 17:43:37,022 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 138.2) internal successors, (1382), 10 states have internal predecessors, (1382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:43:37,022 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:43:37,022 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:43:37,022 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-08-29 17:43:37,022 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-08-29 17:43:37,022 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:43:37,022 INFO L85 PathProgramCache]: Analyzing trace with hash -1272134940, now seen corresponding path program 12 times [2023-08-29 17:43:37,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:43:37,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992635010] [2023-08-29 17:43:37,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:43:37,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:43:37,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:43:37,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:43:37,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:43:37,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992635010] [2023-08-29 17:43:37,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [992635010] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:43:37,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:43:37,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 17:43:37,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079498380] [2023-08-29 17:43:37,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:43:37,429 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 17:43:37,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:43:37,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 17:43:37,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-08-29 17:43:38,193 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 137 out of 349 [2023-08-29 17:43:38,194 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 356 places, 994 transitions, 33448 flow. Second operand has 10 states, 10 states have (on average 138.2) internal successors, (1382), 10 states have internal predecessors, (1382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:43:38,194 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:43:38,194 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 137 of 349 [2023-08-29 17:43:38,194 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:43:43,168 INFO L130 PetriNetUnfolder]: 3381/9378 cut-off events. [2023-08-29 17:43:43,168 INFO L131 PetriNetUnfolder]: For 351188/351980 co-relation queries the response was YES. [2023-08-29 17:43:43,247 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74740 conditions, 9378 events. 3381/9378 cut-off events. For 351188/351980 co-relation queries the response was YES. Maximal size of possible extension queue 403. Compared 92587 event pairs, 373 based on Foata normal form. 498/9457 useless extension candidates. Maximal degree in co-relation 74607. Up to 2817 conditions per place. [2023-08-29 17:43:43,276 INFO L137 encePairwiseOnDemand]: 318/349 looper letters, 488 selfloop transitions, 711 changer transitions 2/1241 dead transitions. [2023-08-29 17:43:43,276 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 369 places, 1241 transitions, 39685 flow [2023-08-29 17:43:43,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-29 17:43:43,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-29 17:43:43,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2202 transitions. [2023-08-29 17:43:43,278 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45067539909946785 [2023-08-29 17:43:43,279 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2202 transitions. [2023-08-29 17:43:43,279 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2202 transitions. [2023-08-29 17:43:43,279 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:43:43,279 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2202 transitions. [2023-08-29 17:43:43,281 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 157.28571428571428) internal successors, (2202), 14 states have internal predecessors, (2202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:43:43,285 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 349.0) internal successors, (5235), 15 states have internal predecessors, (5235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:43:43,285 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 349.0) internal successors, (5235), 15 states have internal predecessors, (5235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:43:43,285 INFO L175 Difference]: Start difference. First operand has 356 places, 994 transitions, 33448 flow. Second operand 14 states and 2202 transitions. [2023-08-29 17:43:43,285 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 369 places, 1241 transitions, 39685 flow [2023-08-29 17:43:46,115 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 368 places, 1241 transitions, 39529 flow, removed 56 selfloop flow, removed 1 redundant places. [2023-08-29 17:43:46,144 INFO L231 Difference]: Finished difference. Result has 380 places, 1053 transitions, 38441 flow [2023-08-29 17:43:46,145 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=349, PETRI_DIFFERENCE_MINUEND_FLOW=33312, PETRI_DIFFERENCE_MINUEND_PLACES=355, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=994, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=654, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=298, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=38441, PETRI_PLACES=380, PETRI_TRANSITIONS=1053} [2023-08-29 17:43:46,145 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 303 predicate places. [2023-08-29 17:43:46,145 INFO L495 AbstractCegarLoop]: Abstraction has has 380 places, 1053 transitions, 38441 flow [2023-08-29 17:43:46,145 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 138.2) internal successors, (1382), 10 states have internal predecessors, (1382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:43:46,145 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:43:46,145 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:43:46,146 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-08-29 17:43:46,146 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-08-29 17:43:46,146 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:43:46,146 INFO L85 PathProgramCache]: Analyzing trace with hash -1289974320, now seen corresponding path program 13 times [2023-08-29 17:43:46,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:43:46,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24086373] [2023-08-29 17:43:46,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:43:46,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:43:46,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:43:46,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:43:46,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:43:46,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24086373] [2023-08-29 17:43:46,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24086373] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:43:46,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:43:46,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 17:43:46,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413870209] [2023-08-29 17:43:46,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:43:46,503 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 17:43:46,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:43:46,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 17:43:46,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-08-29 17:43:47,033 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 137 out of 349 [2023-08-29 17:43:47,034 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 380 places, 1053 transitions, 38441 flow. Second operand has 10 states, 10 states have (on average 138.2) internal successors, (1382), 10 states have internal predecessors, (1382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:43:47,034 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:43:47,034 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 137 of 349 [2023-08-29 17:43:47,034 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:43:52,584 INFO L130 PetriNetUnfolder]: 3529/9803 cut-off events. [2023-08-29 17:43:52,585 INFO L131 PetriNetUnfolder]: For 432222/432897 co-relation queries the response was YES. [2023-08-29 17:43:52,723 INFO L83 FinitePrefix]: Finished finitePrefix Result has 81971 conditions, 9803 events. 3529/9803 cut-off events. For 432222/432897 co-relation queries the response was YES. Maximal size of possible extension queue 421. Compared 97924 event pairs, 425 based on Foata normal form. 419/9787 useless extension candidates. Maximal degree in co-relation 81827. Up to 2682 conditions per place. [2023-08-29 17:43:52,756 INFO L137 encePairwiseOnDemand]: 319/349 looper letters, 530 selfloop transitions, 697 changer transitions 2/1269 dead transitions. [2023-08-29 17:43:52,756 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 393 places, 1269 transitions, 44574 flow [2023-08-29 17:43:52,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-29 17:43:52,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-29 17:43:52,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2170 transitions. [2023-08-29 17:43:52,759 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44412607449856734 [2023-08-29 17:43:52,759 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2170 transitions. [2023-08-29 17:43:52,759 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2170 transitions. [2023-08-29 17:43:52,759 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:43:52,760 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2170 transitions. [2023-08-29 17:43:52,762 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 155.0) internal successors, (2170), 14 states have internal predecessors, (2170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:43:52,765 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 349.0) internal successors, (5235), 15 states have internal predecessors, (5235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:43:52,765 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 349.0) internal successors, (5235), 15 states have internal predecessors, (5235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:43:52,765 INFO L175 Difference]: Start difference. First operand has 380 places, 1053 transitions, 38441 flow. Second operand 14 states and 2170 transitions. [2023-08-29 17:43:52,766 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 393 places, 1269 transitions, 44574 flow [2023-08-29 17:43:56,783 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 393 places, 1269 transitions, 44458 flow, removed 58 selfloop flow, removed 0 redundant places. [2023-08-29 17:43:56,814 INFO L231 Difference]: Finished difference. Result has 403 places, 1101 transitions, 43258 flow [2023-08-29 17:43:56,815 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=349, PETRI_DIFFERENCE_MINUEND_FLOW=38335, PETRI_DIFFERENCE_MINUEND_PLACES=380, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1053, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=649, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=370, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=43258, PETRI_PLACES=403, PETRI_TRANSITIONS=1101} [2023-08-29 17:43:56,816 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 326 predicate places. [2023-08-29 17:43:56,816 INFO L495 AbstractCegarLoop]: Abstraction has has 403 places, 1101 transitions, 43258 flow [2023-08-29 17:43:56,816 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 138.2) internal successors, (1382), 10 states have internal predecessors, (1382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:43:56,816 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:43:56,816 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:43:56,817 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-08-29 17:43:56,817 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-08-29 17:43:56,817 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:43:56,817 INFO L85 PathProgramCache]: Analyzing trace with hash -1141787270, now seen corresponding path program 1 times [2023-08-29 17:43:56,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:43:56,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894592795] [2023-08-29 17:43:56,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:43:56,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:43:56,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:43:57,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:43:57,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:43:57,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894592795] [2023-08-29 17:43:57,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894592795] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:43:57,061 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:43:57,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 17:43:57,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993603117] [2023-08-29 17:43:57,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:43:57,062 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 17:43:57,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:43:57,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 17:43:57,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 17:43:57,241 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 349 [2023-08-29 17:43:57,242 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 403 places, 1101 transitions, 43258 flow. Second operand has 6 states, 6 states have (on average 145.0) internal successors, (870), 6 states have internal predecessors, (870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:43:57,242 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:43:57,242 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 349 [2023-08-29 17:43:57,242 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:44:03,992 INFO L130 PetriNetUnfolder]: 5690/14373 cut-off events. [2023-08-29 17:44:03,992 INFO L131 PetriNetUnfolder]: For 636400/636787 co-relation queries the response was YES. [2023-08-29 17:44:04,123 INFO L83 FinitePrefix]: Finished finitePrefix Result has 112543 conditions, 14373 events. 5690/14373 cut-off events. For 636400/636787 co-relation queries the response was YES. Maximal size of possible extension queue 521. Compared 141701 event pairs, 2238 based on Foata normal form. 27/13691 useless extension candidates. Maximal degree in co-relation 112389. Up to 10607 conditions per place. [2023-08-29 17:44:04,171 INFO L137 encePairwiseOnDemand]: 335/349 looper letters, 1018 selfloop transitions, 170 changer transitions 0/1376 dead transitions. [2023-08-29 17:44:04,171 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 408 places, 1376 transitions, 55140 flow [2023-08-29 17:44:04,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 17:44:04,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 17:44:04,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 963 transitions. [2023-08-29 17:44:04,173 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45988538681948427 [2023-08-29 17:44:04,173 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 963 transitions. [2023-08-29 17:44:04,173 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 963 transitions. [2023-08-29 17:44:04,173 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:44:04,173 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 963 transitions. [2023-08-29 17:44:04,174 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 160.5) internal successors, (963), 6 states have internal predecessors, (963), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:44:04,175 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 349.0) internal successors, (2443), 7 states have internal predecessors, (2443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:44:04,175 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 349.0) internal successors, (2443), 7 states have internal predecessors, (2443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:44:04,175 INFO L175 Difference]: Start difference. First operand has 403 places, 1101 transitions, 43258 flow. Second operand 6 states and 963 transitions. [2023-08-29 17:44:04,175 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 408 places, 1376 transitions, 55140 flow [2023-08-29 17:44:10,120 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 405 places, 1376 transitions, 54865 flow, removed 87 selfloop flow, removed 3 redundant places. [2023-08-29 17:44:10,151 INFO L231 Difference]: Finished difference. Result has 409 places, 1240 transitions, 46913 flow [2023-08-29 17:44:10,152 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=349, PETRI_DIFFERENCE_MINUEND_FLOW=43057, PETRI_DIFFERENCE_MINUEND_PLACES=400, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=55, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1003, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=46913, PETRI_PLACES=409, PETRI_TRANSITIONS=1240} [2023-08-29 17:44:10,153 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 332 predicate places. [2023-08-29 17:44:10,153 INFO L495 AbstractCegarLoop]: Abstraction has has 409 places, 1240 transitions, 46913 flow [2023-08-29 17:44:10,153 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 145.0) internal successors, (870), 6 states have internal predecessors, (870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:44:10,153 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:44:10,153 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:44:10,153 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-08-29 17:44:10,153 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-08-29 17:44:10,153 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:44:10,153 INFO L85 PathProgramCache]: Analyzing trace with hash 94692759, now seen corresponding path program 1 times [2023-08-29 17:44:10,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:44:10,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613461997] [2023-08-29 17:44:10,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:44:10,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:44:10,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:44:10,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:44:10,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:44:10,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613461997] [2023-08-29 17:44:10,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613461997] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:44:10,395 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:44:10,395 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 17:44:10,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421940780] [2023-08-29 17:44:10,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:44:10,396 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 17:44:10,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:44:10,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 17:44:10,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 17:44:10,626 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 148 out of 349 [2023-08-29 17:44:10,627 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 409 places, 1240 transitions, 46913 flow. Second operand has 6 states, 6 states have (on average 149.83333333333334) internal successors, (899), 6 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:44:10,627 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:44:10,627 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 148 of 349 [2023-08-29 17:44:10,627 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:44:20,546 INFO L130 PetriNetUnfolder]: 8054/19175 cut-off events. [2023-08-29 17:44:20,546 INFO L131 PetriNetUnfolder]: For 942840/943794 co-relation queries the response was YES. [2023-08-29 17:44:20,741 INFO L83 FinitePrefix]: Finished finitePrefix Result has 160386 conditions, 19175 events. 8054/19175 cut-off events. For 942840/943794 co-relation queries the response was YES. Maximal size of possible extension queue 708. Compared 192233 event pairs, 848 based on Foata normal form. 127/18774 useless extension candidates. Maximal degree in co-relation 160228. Up to 10950 conditions per place. [2023-08-29 17:44:20,804 INFO L137 encePairwiseOnDemand]: 327/349 looper letters, 1129 selfloop transitions, 746 changer transitions 4/2194 dead transitions. [2023-08-29 17:44:20,804 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 414 places, 2194 transitions, 91535 flow [2023-08-29 17:44:20,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 17:44:20,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 17:44:20,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1044 transitions. [2023-08-29 17:44:20,806 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.498567335243553 [2023-08-29 17:44:20,806 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1044 transitions. [2023-08-29 17:44:20,806 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1044 transitions. [2023-08-29 17:44:20,806 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:44:20,806 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1044 transitions. [2023-08-29 17:44:20,807 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 174.0) internal successors, (1044), 6 states have internal predecessors, (1044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:44:20,809 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 349.0) internal successors, (2443), 7 states have internal predecessors, (2443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:44:20,809 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 349.0) internal successors, (2443), 7 states have internal predecessors, (2443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:44:20,809 INFO L175 Difference]: Start difference. First operand has 409 places, 1240 transitions, 46913 flow. Second operand 6 states and 1044 transitions. [2023-08-29 17:44:20,809 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 414 places, 2194 transitions, 91535 flow [2023-08-29 17:44:30,057 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 414 places, 2194 transitions, 91167 flow, removed 184 selfloop flow, removed 0 redundant places. [2023-08-29 17:44:30,102 INFO L231 Difference]: Finished difference. Result has 419 places, 1808 transitions, 75299 flow [2023-08-29 17:44:30,103 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=349, PETRI_DIFFERENCE_MINUEND_FLOW=46545, PETRI_DIFFERENCE_MINUEND_PLACES=409, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1240, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=276, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=932, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=75299, PETRI_PLACES=419, PETRI_TRANSITIONS=1808} [2023-08-29 17:44:30,103 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 342 predicate places. [2023-08-29 17:44:30,103 INFO L495 AbstractCegarLoop]: Abstraction has has 419 places, 1808 transitions, 75299 flow [2023-08-29 17:44:30,103 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 149.83333333333334) internal successors, (899), 6 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:44:30,103 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:44:30,103 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:44:30,104 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-08-29 17:44:30,104 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-08-29 17:44:30,104 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:44:30,104 INFO L85 PathProgramCache]: Analyzing trace with hash 29421568, now seen corresponding path program 1 times [2023-08-29 17:44:30,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:44:30,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545648998] [2023-08-29 17:44:30,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:44:30,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:44:30,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:44:30,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:44:30,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:44:30,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545648998] [2023-08-29 17:44:30,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1545648998] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:44:30,498 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:44:30,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 17:44:30,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643557083] [2023-08-29 17:44:30,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:44:30,500 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 17:44:30,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:44:30,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 17:44:30,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-08-29 17:44:31,180 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 139 out of 349 [2023-08-29 17:44:31,180 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 419 places, 1808 transitions, 75299 flow. Second operand has 10 states, 10 states have (on average 140.5) internal successors, (1405), 10 states have internal predecessors, (1405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:44:31,180 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:44:31,181 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 139 of 349 [2023-08-29 17:44:31,181 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:44:43,798 INFO L130 PetriNetUnfolder]: 8303/20030 cut-off events. [2023-08-29 17:44:43,798 INFO L131 PetriNetUnfolder]: For 964572/965329 co-relation queries the response was YES. [2023-08-29 17:44:44,019 INFO L83 FinitePrefix]: Finished finitePrefix Result has 176653 conditions, 20030 events. 8303/20030 cut-off events. For 964572/965329 co-relation queries the response was YES. Maximal size of possible extension queue 699. Compared 201985 event pairs, 1898 based on Foata normal form. 262/19816 useless extension candidates. Maximal degree in co-relation 176490. Up to 12026 conditions per place. [2023-08-29 17:44:44,087 INFO L137 encePairwiseOnDemand]: 335/349 looper letters, 1272 selfloop transitions, 490 changer transitions 2/2088 dead transitions. [2023-08-29 17:44:44,088 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 433 places, 2088 transitions, 86940 flow [2023-08-29 17:44:44,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-08-29 17:44:44,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-08-29 17:44:44,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2276 transitions. [2023-08-29 17:44:44,090 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43476599808978034 [2023-08-29 17:44:44,091 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2276 transitions. [2023-08-29 17:44:44,091 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2276 transitions. [2023-08-29 17:44:44,091 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:44:44,091 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2276 transitions. [2023-08-29 17:44:44,094 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 151.73333333333332) internal successors, (2276), 15 states have internal predecessors, (2276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:44:44,097 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 349.0) internal successors, (5584), 16 states have internal predecessors, (5584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:44:44,097 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 349.0) internal successors, (5584), 16 states have internal predecessors, (5584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:44:44,098 INFO L175 Difference]: Start difference. First operand has 419 places, 1808 transitions, 75299 flow. Second operand 15 states and 2276 transitions. [2023-08-29 17:44:44,098 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 433 places, 2088 transitions, 86940 flow [2023-08-29 17:44:54,488 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 433 places, 2088 transitions, 86124 flow, removed 408 selfloop flow, removed 0 redundant places. [2023-08-29 17:44:54,533 INFO L231 Difference]: Finished difference. Result has 437 places, 1898 transitions, 79472 flow [2023-08-29 17:44:54,534 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=349, PETRI_DIFFERENCE_MINUEND_FLOW=74507, PETRI_DIFFERENCE_MINUEND_PLACES=419, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1808, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=406, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1398, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=79472, PETRI_PLACES=437, PETRI_TRANSITIONS=1898} [2023-08-29 17:44:54,534 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 360 predicate places. [2023-08-29 17:44:54,534 INFO L495 AbstractCegarLoop]: Abstraction has has 437 places, 1898 transitions, 79472 flow [2023-08-29 17:44:54,535 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 140.5) internal successors, (1405), 10 states have internal predecessors, (1405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:44:54,535 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:44:54,535 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:44:54,535 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-08-29 17:44:54,535 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-08-29 17:44:54,536 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:44:54,536 INFO L85 PathProgramCache]: Analyzing trace with hash 662130624, now seen corresponding path program 1 times [2023-08-29 17:44:54,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:44:54,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199291074] [2023-08-29 17:44:54,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:44:54,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:44:54,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:44:55,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:44:55,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:44:55,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199291074] [2023-08-29 17:44:55,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1199291074] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:44:55,505 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:44:55,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-29 17:44:55,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781928807] [2023-08-29 17:44:55,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:44:55,506 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-29 17:44:55,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:44:55,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-29 17:44:55,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2023-08-29 17:44:56,342 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 349 [2023-08-29 17:44:56,343 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 437 places, 1898 transitions, 79472 flow. Second operand has 12 states, 12 states have (on average 125.58333333333333) internal successors, (1507), 12 states have internal predecessors, (1507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:44:56,343 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:44:56,343 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 349 [2023-08-29 17:44:56,343 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:45:10,110 INFO L130 PetriNetUnfolder]: 8371/20056 cut-off events. [2023-08-29 17:45:10,110 INFO L131 PetriNetUnfolder]: For 1005259/1006072 co-relation queries the response was YES. [2023-08-29 17:45:10,424 INFO L83 FinitePrefix]: Finished finitePrefix Result has 178731 conditions, 20056 events. 8371/20056 cut-off events. For 1005259/1006072 co-relation queries the response was YES. Maximal size of possible extension queue 738. Compared 201496 event pairs, 1800 based on Foata normal form. 155/19728 useless extension candidates. Maximal degree in co-relation 178563. Up to 10188 conditions per place. [2023-08-29 17:45:10,647 INFO L137 encePairwiseOnDemand]: 331/349 looper letters, 1170 selfloop transitions, 543 changer transitions 0/2125 dead transitions. [2023-08-29 17:45:10,647 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 455 places, 2125 transitions, 88808 flow [2023-08-29 17:45:10,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-08-29 17:45:10,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2023-08-29 17:45:10,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2564 transitions. [2023-08-29 17:45:10,650 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.38666867742421956 [2023-08-29 17:45:10,650 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2564 transitions. [2023-08-29 17:45:10,650 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2564 transitions. [2023-08-29 17:45:10,651 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:45:10,651 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2564 transitions. [2023-08-29 17:45:10,654 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 134.94736842105263) internal successors, (2564), 19 states have internal predecessors, (2564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:45:10,658 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 349.0) internal successors, (6980), 20 states have internal predecessors, (6980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:45:10,659 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 349.0) internal successors, (6980), 20 states have internal predecessors, (6980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:45:10,659 INFO L175 Difference]: Start difference. First operand has 437 places, 1898 transitions, 79472 flow. Second operand 19 states and 2564 transitions. [2023-08-29 17:45:10,659 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 455 places, 2125 transitions, 88808 flow [2023-08-29 17:45:21,517 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 452 places, 2125 transitions, 88731 flow, removed 14 selfloop flow, removed 3 redundant places. [2023-08-29 17:45:21,569 INFO L231 Difference]: Finished difference. Result has 458 places, 1928 transitions, 81979 flow [2023-08-29 17:45:21,571 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=349, PETRI_DIFFERENCE_MINUEND_FLOW=79395, PETRI_DIFFERENCE_MINUEND_PLACES=434, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1898, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=515, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1362, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=81979, PETRI_PLACES=458, PETRI_TRANSITIONS=1928} [2023-08-29 17:45:21,571 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 381 predicate places. [2023-08-29 17:45:21,571 INFO L495 AbstractCegarLoop]: Abstraction has has 458 places, 1928 transitions, 81979 flow [2023-08-29 17:45:21,572 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 125.58333333333333) internal successors, (1507), 12 states have internal predecessors, (1507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:45:21,572 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:45:21,572 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:45:21,572 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-08-29 17:45:21,572 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-08-29 17:45:21,573 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:45:21,573 INFO L85 PathProgramCache]: Analyzing trace with hash 1726368848, now seen corresponding path program 2 times [2023-08-29 17:45:21,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:45:21,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401729963] [2023-08-29 17:45:21,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:45:21,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:45:21,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:45:22,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:45:22,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:45:22,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401729963] [2023-08-29 17:45:22,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [401729963] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:45:22,315 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:45:22,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-29 17:45:22,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750780237] [2023-08-29 17:45:22,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:45:22,318 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-29 17:45:22,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:45:22,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-29 17:45:22,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2023-08-29 17:45:23,078 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 349 [2023-08-29 17:45:23,079 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 458 places, 1928 transitions, 81979 flow. Second operand has 12 states, 12 states have (on average 125.58333333333333) internal successors, (1507), 12 states have internal predecessors, (1507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:45:23,079 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:45:23,079 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 349 [2023-08-29 17:45:23,079 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:45:41,298 INFO L130 PetriNetUnfolder]: 10477/24999 cut-off events. [2023-08-29 17:45:41,299 INFO L131 PetriNetUnfolder]: For 1336183/1337358 co-relation queries the response was YES. [2023-08-29 17:45:41,698 INFO L83 FinitePrefix]: Finished finitePrefix Result has 235914 conditions, 24999 events. 10477/24999 cut-off events. For 1336183/1337358 co-relation queries the response was YES. Maximal size of possible extension queue 842. Compared 258881 event pairs, 1984 based on Foata normal form. 293/24776 useless extension candidates. Maximal degree in co-relation 235739. Up to 10079 conditions per place. [2023-08-29 17:45:41,795 INFO L137 encePairwiseOnDemand]: 333/349 looper letters, 2019 selfloop transitions, 260 changer transitions 0/2691 dead transitions. [2023-08-29 17:45:41,795 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 474 places, 2691 transitions, 111016 flow [2023-08-29 17:45:41,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-08-29 17:45:41,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-08-29 17:45:41,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2328 transitions. [2023-08-29 17:45:41,797 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.39238159447159954 [2023-08-29 17:45:41,797 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2328 transitions. [2023-08-29 17:45:41,798 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2328 transitions. [2023-08-29 17:45:41,798 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:45:41,798 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2328 transitions. [2023-08-29 17:45:41,800 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 136.94117647058823) internal successors, (2328), 17 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:45:41,804 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 349.0) internal successors, (6282), 18 states have internal predecessors, (6282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:45:41,804 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 349.0) internal successors, (6282), 18 states have internal predecessors, (6282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:45:41,804 INFO L175 Difference]: Start difference. First operand has 458 places, 1928 transitions, 81979 flow. Second operand 17 states and 2328 transitions. [2023-08-29 17:45:41,805 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 474 places, 2691 transitions, 111016 flow [2023-08-29 17:45:58,198 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 465 places, 2691 transitions, 110441 flow, removed 5 selfloop flow, removed 9 redundant places. [2023-08-29 17:45:58,252 INFO L231 Difference]: Finished difference. Result has 476 places, 2101 transitions, 90625 flow [2023-08-29 17:45:58,254 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=349, PETRI_DIFFERENCE_MINUEND_FLOW=81523, PETRI_DIFFERENCE_MINUEND_PLACES=449, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1928, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=100, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1690, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=90625, PETRI_PLACES=476, PETRI_TRANSITIONS=2101} [2023-08-29 17:45:58,254 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 399 predicate places. [2023-08-29 17:45:58,254 INFO L495 AbstractCegarLoop]: Abstraction has has 476 places, 2101 transitions, 90625 flow [2023-08-29 17:45:58,254 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 125.58333333333333) internal successors, (1507), 12 states have internal predecessors, (1507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:45:58,254 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:45:58,255 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:45:58,255 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-08-29 17:45:58,255 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-08-29 17:45:58,255 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:45:58,255 INFO L85 PathProgramCache]: Analyzing trace with hash -1178538352, now seen corresponding path program 3 times [2023-08-29 17:45:58,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:45:58,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197625580] [2023-08-29 17:45:58,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:45:58,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:45:58,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:45:58,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:45:58,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:45:58,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197625580] [2023-08-29 17:45:58,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [197625580] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:45:58,893 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:45:58,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-29 17:45:58,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801379543] [2023-08-29 17:45:58,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:45:58,894 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-29 17:45:58,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:45:58,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-29 17:45:58,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2023-08-29 17:45:59,611 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 349 [2023-08-29 17:45:59,612 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 476 places, 2101 transitions, 90625 flow. Second operand has 12 states, 12 states have (on average 125.58333333333333) internal successors, (1507), 12 states have internal predecessors, (1507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:45:59,612 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:45:59,612 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 349 [2023-08-29 17:45:59,612 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:46:19,421 INFO L130 PetriNetUnfolder]: 10467/25063 cut-off events. [2023-08-29 17:46:19,422 INFO L131 PetriNetUnfolder]: For 1381468/1382552 co-relation queries the response was YES. [2023-08-29 17:46:19,890 INFO L83 FinitePrefix]: Finished finitePrefix Result has 241940 conditions, 25063 events. 10467/25063 cut-off events. For 1381468/1382552 co-relation queries the response was YES. Maximal size of possible extension queue 843. Compared 259709 event pairs, 2150 based on Foata normal form. 290/24815 useless extension candidates. Maximal degree in co-relation 241753. Up to 12437 conditions per place. [2023-08-29 17:46:19,989 INFO L137 encePairwiseOnDemand]: 331/349 looper letters, 1204 selfloop transitions, 712 changer transitions 0/2328 dead transitions. [2023-08-29 17:46:19,989 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 495 places, 2328 transitions, 100368 flow [2023-08-29 17:46:19,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-08-29 17:46:19,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2023-08-29 17:46:19,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2696 transitions. [2023-08-29 17:46:19,991 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3862464183381089 [2023-08-29 17:46:19,991 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2696 transitions. [2023-08-29 17:46:19,991 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2696 transitions. [2023-08-29 17:46:19,991 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:46:19,992 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2696 transitions. [2023-08-29 17:46:19,994 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 134.8) internal successors, (2696), 20 states have internal predecessors, (2696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:46:19,999 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 349.0) internal successors, (7329), 21 states have internal predecessors, (7329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:46:19,999 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 349.0) internal successors, (7329), 21 states have internal predecessors, (7329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:46:19,999 INFO L175 Difference]: Start difference. First operand has 476 places, 2101 transitions, 90625 flow. Second operand 20 states and 2696 transitions. [2023-08-29 17:46:19,999 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 495 places, 2328 transitions, 100368 flow [2023-08-29 17:46:38,375 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 495 places, 2328 transitions, 100304 flow, removed 32 selfloop flow, removed 0 redundant places. [2023-08-29 17:46:38,432 INFO L231 Difference]: Finished difference. Result has 502 places, 2121 transitions, 92886 flow [2023-08-29 17:46:38,433 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=349, PETRI_DIFFERENCE_MINUEND_FLOW=90575, PETRI_DIFFERENCE_MINUEND_PLACES=476, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=692, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1403, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=92886, PETRI_PLACES=502, PETRI_TRANSITIONS=2121} [2023-08-29 17:46:38,434 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 425 predicate places. [2023-08-29 17:46:38,434 INFO L495 AbstractCegarLoop]: Abstraction has has 502 places, 2121 transitions, 92886 flow [2023-08-29 17:46:38,434 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 125.58333333333333) internal successors, (1507), 12 states have internal predecessors, (1507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:46:38,434 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:46:38,434 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:46:38,434 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-08-29 17:46:38,435 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-08-29 17:46:38,435 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:46:38,435 INFO L85 PathProgramCache]: Analyzing trace with hash -5922688, now seen corresponding path program 4 times [2023-08-29 17:46:38,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:46:38,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545299487] [2023-08-29 17:46:38,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:46:38,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:46:38,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:46:39,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:46:39,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:46:39,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545299487] [2023-08-29 17:46:39,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1545299487] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:46:39,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:46:39,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-29 17:46:39,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812139602] [2023-08-29 17:46:39,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:46:39,248 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-29 17:46:39,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:46:39,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-29 17:46:39,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2023-08-29 17:46:40,145 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 349 [2023-08-29 17:46:40,145 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 502 places, 2121 transitions, 92886 flow. Second operand has 12 states, 12 states have (on average 125.58333333333333) internal successors, (1507), 12 states have internal predecessors, (1507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:46:40,146 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:46:40,146 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 349 [2023-08-29 17:46:40,146 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:47:08,584 INFO L130 PetriNetUnfolder]: 14433/34370 cut-off events. [2023-08-29 17:47:08,584 INFO L131 PetriNetUnfolder]: For 1895146/1896229 co-relation queries the response was YES. [2023-08-29 17:47:09,846 INFO L83 FinitePrefix]: Finished finitePrefix Result has 330691 conditions, 34370 events. 14433/34370 cut-off events. For 1895146/1896229 co-relation queries the response was YES. Maximal size of possible extension queue 1141. Compared 374899 event pairs, 2132 based on Foata normal form. 162/33866 useless extension candidates. Maximal degree in co-relation 330496. Up to 13537 conditions per place. [2023-08-29 17:47:10,002 INFO L137 encePairwiseOnDemand]: 333/349 looper letters, 2351 selfloop transitions, 516 changer transitions 0/3279 dead transitions. [2023-08-29 17:47:10,002 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 517 places, 3279 transitions, 144347 flow [2023-08-29 17:47:10,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-08-29 17:47:10,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-08-29 17:47:10,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2176 transitions. [2023-08-29 17:47:10,004 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.38968481375358166 [2023-08-29 17:47:10,004 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 2176 transitions. [2023-08-29 17:47:10,004 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 2176 transitions. [2023-08-29 17:47:10,005 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:47:10,005 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 2176 transitions. [2023-08-29 17:47:10,006 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 136.0) internal successors, (2176), 16 states have internal predecessors, (2176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:47:10,010 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 349.0) internal successors, (5933), 17 states have internal predecessors, (5933), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:47:10,011 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 349.0) internal successors, (5933), 17 states have internal predecessors, (5933), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:47:10,011 INFO L175 Difference]: Start difference. First operand has 502 places, 2121 transitions, 92886 flow. Second operand 16 states and 2176 transitions. [2023-08-29 17:47:10,011 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 517 places, 3279 transitions, 144347 flow [2023-08-29 17:47:39,486 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 505 places, 3279 transitions, 142879 flow, removed 36 selfloop flow, removed 12 redundant places. [2023-08-29 17:47:39,560 INFO L231 Difference]: Finished difference. Result has 515 places, 2503 transitions, 114602 flow [2023-08-29 17:47:39,561 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=349, PETRI_DIFFERENCE_MINUEND_FLOW=91967, PETRI_DIFFERENCE_MINUEND_PLACES=490, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=144, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1639, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=114602, PETRI_PLACES=515, PETRI_TRANSITIONS=2503} [2023-08-29 17:47:39,562 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 438 predicate places. [2023-08-29 17:47:39,562 INFO L495 AbstractCegarLoop]: Abstraction has has 515 places, 2503 transitions, 114602 flow [2023-08-29 17:47:39,562 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 125.58333333333333) internal successors, (1507), 12 states have internal predecessors, (1507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:47:39,562 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:47:39,562 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:47:39,562 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-08-29 17:47:39,562 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-08-29 17:47:39,563 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:47:39,563 INFO L85 PathProgramCache]: Analyzing trace with hash 2054901502, now seen corresponding path program 5 times [2023-08-29 17:47:39,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:47:39,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116476992] [2023-08-29 17:47:39,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:47:39,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:47:39,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:47:40,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:47:40,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:47:40,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116476992] [2023-08-29 17:47:40,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2116476992] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:47:40,202 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:47:40,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-29 17:47:40,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125532559] [2023-08-29 17:47:40,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:47:40,203 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-29 17:47:40,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:47:40,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-29 17:47:40,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2023-08-29 17:47:41,328 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 349 [2023-08-29 17:47:41,329 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 515 places, 2503 transitions, 114602 flow. Second operand has 12 states, 12 states have (on average 125.58333333333333) internal successors, (1507), 12 states have internal predecessors, (1507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:47:41,329 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:47:41,329 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 349 [2023-08-29 17:47:41,329 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:48:17,508 INFO L130 PetriNetUnfolder]: 14578/34461 cut-off events. [2023-08-29 17:48:17,508 INFO L131 PetriNetUnfolder]: For 1959257/1960749 co-relation queries the response was YES. [2023-08-29 17:48:18,812 INFO L83 FinitePrefix]: Finished finitePrefix Result has 337914 conditions, 34461 events. 14578/34461 cut-off events. For 1959257/1960749 co-relation queries the response was YES. Maximal size of possible extension queue 1124. Compared 372722 event pairs, 3087 based on Foata normal form. 357/34100 useless extension candidates. Maximal degree in co-relation 337709. Up to 17687 conditions per place. [2023-08-29 17:48:18,963 INFO L137 encePairwiseOnDemand]: 331/349 looper letters, 1337 selfloop transitions, 934 changer transitions 0/2683 dead transitions. [2023-08-29 17:48:18,963 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 532 places, 2683 transitions, 124029 flow [2023-08-29 17:48:18,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-08-29 17:48:18,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-08-29 17:48:18,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2429 transitions. [2023-08-29 17:48:18,965 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.38666029926774914 [2023-08-29 17:48:18,965 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2429 transitions. [2023-08-29 17:48:18,965 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2429 transitions. [2023-08-29 17:48:18,965 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:48:18,965 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2429 transitions. [2023-08-29 17:48:18,967 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 134.94444444444446) internal successors, (2429), 18 states have internal predecessors, (2429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:48:18,970 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 349.0) internal successors, (6631), 19 states have internal predecessors, (6631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:48:18,970 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 349.0) internal successors, (6631), 19 states have internal predecessors, (6631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:48:18,970 INFO L175 Difference]: Start difference. First operand has 515 places, 2503 transitions, 114602 flow. Second operand 18 states and 2429 transitions. [2023-08-29 17:48:18,971 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 532 places, 2683 transitions, 124029 flow [2023-08-29 17:48:50,134 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 531 places, 2683 transitions, 123748 flow, removed 134 selfloop flow, removed 1 redundant places. [2023-08-29 17:48:50,240 INFO L231 Difference]: Finished difference. Result has 537 places, 2535 transitions, 117673 flow [2023-08-29 17:48:50,243 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=349, PETRI_DIFFERENCE_MINUEND_FLOW=114349, PETRI_DIFFERENCE_MINUEND_PLACES=514, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2503, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=906, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1580, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=117673, PETRI_PLACES=537, PETRI_TRANSITIONS=2535} [2023-08-29 17:48:50,244 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 460 predicate places. [2023-08-29 17:48:50,244 INFO L495 AbstractCegarLoop]: Abstraction has has 537 places, 2535 transitions, 117673 flow [2023-08-29 17:48:50,244 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 125.58333333333333) internal successors, (1507), 12 states have internal predecessors, (1507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:48:50,244 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:48:50,244 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:48:50,245 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-08-29 17:48:50,245 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-08-29 17:48:50,245 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:48:50,245 INFO L85 PathProgramCache]: Analyzing trace with hash -718664832, now seen corresponding path program 6 times [2023-08-29 17:48:50,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:48:50,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692804888] [2023-08-29 17:48:50,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:48:50,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:48:50,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:48:50,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:48:50,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:48:50,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692804888] [2023-08-29 17:48:50,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [692804888] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:48:50,929 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:48:50,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-29 17:48:50,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717649215] [2023-08-29 17:48:50,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:48:50,929 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-29 17:48:50,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:48:50,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-29 17:48:50,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2023-08-29 17:48:51,850 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 349 [2023-08-29 17:48:51,851 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 537 places, 2535 transitions, 117673 flow. Second operand has 12 states, 12 states have (on average 125.58333333333333) internal successors, (1507), 12 states have internal predecessors, (1507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:48:51,851 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:48:51,851 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 349 [2023-08-29 17:48:51,851 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:49:29,117 INFO L130 PetriNetUnfolder]: 14810/35040 cut-off events. [2023-08-29 17:49:29,117 INFO L131 PetriNetUnfolder]: For 2073892/2075260 co-relation queries the response was YES. [2023-08-29 17:49:30,446 INFO L83 FinitePrefix]: Finished finitePrefix Result has 349731 conditions, 35040 events. 14810/35040 cut-off events. For 2073892/2075260 co-relation queries the response was YES. Maximal size of possible extension queue 1134. Compared 379573 event pairs, 3246 based on Foata normal form. 310/34576 useless extension candidates. Maximal degree in co-relation 349519. Up to 19647 conditions per place. [2023-08-29 17:49:30,599 INFO L137 encePairwiseOnDemand]: 334/349 looper letters, 1742 selfloop transitions, 664 changer transitions 0/2818 dead transitions. [2023-08-29 17:49:30,599 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 553 places, 2818 transitions, 130554 flow [2023-08-29 17:49:30,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-08-29 17:49:30,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-08-29 17:49:30,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2309 transitions. [2023-08-29 17:49:30,602 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3891791673689533 [2023-08-29 17:49:30,602 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2309 transitions. [2023-08-29 17:49:30,602 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2309 transitions. [2023-08-29 17:49:30,603 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:49:30,603 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2309 transitions. [2023-08-29 17:49:30,605 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 135.8235294117647) internal successors, (2309), 17 states have internal predecessors, (2309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:49:30,607 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 349.0) internal successors, (6282), 18 states have internal predecessors, (6282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:49:30,607 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 349.0) internal successors, (6282), 18 states have internal predecessors, (6282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:49:30,607 INFO L175 Difference]: Start difference. First operand has 537 places, 2535 transitions, 117673 flow. Second operand 17 states and 2309 transitions. [2023-08-29 17:49:30,608 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 553 places, 2818 transitions, 130554 flow [2023-08-29 17:50:03,150 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 544 places, 2818 transitions, 129580 flow, removed 102 selfloop flow, removed 9 redundant places. [2023-08-29 17:50:03,224 INFO L231 Difference]: Finished difference. Result has 553 places, 2585 transitions, 120791 flow [2023-08-29 17:50:03,226 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=349, PETRI_DIFFERENCE_MINUEND_FLOW=116757, PETRI_DIFFERENCE_MINUEND_PLACES=528, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2535, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=619, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1885, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=120791, PETRI_PLACES=553, PETRI_TRANSITIONS=2585} [2023-08-29 17:50:03,226 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 476 predicate places. [2023-08-29 17:50:03,227 INFO L495 AbstractCegarLoop]: Abstraction has has 553 places, 2585 transitions, 120791 flow [2023-08-29 17:50:03,227 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 125.58333333333333) internal successors, (1507), 12 states have internal predecessors, (1507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:50:03,227 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:50:03,227 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:50:03,227 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-08-29 17:50:03,228 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-08-29 17:50:03,228 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:50:03,228 INFO L85 PathProgramCache]: Analyzing trace with hash -729482594, now seen corresponding path program 7 times [2023-08-29 17:50:03,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:50:03,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609798970] [2023-08-29 17:50:03,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:50:03,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:50:03,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:50:03,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:50:03,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:50:03,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609798970] [2023-08-29 17:50:03,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1609798970] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:50:03,905 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:50:03,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-29 17:50:03,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794358686] [2023-08-29 17:50:03,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:50:03,905 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-29 17:50:03,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:50:03,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-29 17:50:03,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2023-08-29 17:50:04,823 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 349 [2023-08-29 17:50:04,823 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 553 places, 2585 transitions, 120791 flow. Second operand has 12 states, 12 states have (on average 125.58333333333333) internal successors, (1507), 12 states have internal predecessors, (1507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:50:04,823 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:50:04,824 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 349 [2023-08-29 17:50:04,824 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:50:41,627 INFO L130 PetriNetUnfolder]: 14834/35047 cut-off events. [2023-08-29 17:50:41,628 INFO L131 PetriNetUnfolder]: For 2142422/2143888 co-relation queries the response was YES. [2023-08-29 17:50:42,939 INFO L83 FinitePrefix]: Finished finitePrefix Result has 356474 conditions, 35047 events. 14834/35047 cut-off events. For 2142422/2143888 co-relation queries the response was YES. Maximal size of possible extension queue 1127. Compared 379252 event pairs, 3180 based on Foata normal form. 343/34653 useless extension candidates. Maximal degree in co-relation 356254. Up to 17720 conditions per place. [2023-08-29 17:50:43,096 INFO L137 encePairwiseOnDemand]: 331/349 looper letters, 1238 selfloop transitions, 1137 changer transitions 0/2787 dead transitions. [2023-08-29 17:50:43,096 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 575 places, 2787 transitions, 130946 flow [2023-08-29 17:50:43,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-08-29 17:50:43,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2023-08-29 17:50:43,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 3076 transitions. [2023-08-29 17:50:43,099 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.38320667746356046 [2023-08-29 17:50:43,099 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 3076 transitions. [2023-08-29 17:50:43,099 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 3076 transitions. [2023-08-29 17:50:43,099 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:50:43,100 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 3076 transitions. [2023-08-29 17:50:43,102 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 133.7391304347826) internal successors, (3076), 23 states have internal predecessors, (3076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:50:43,105 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 349.0) internal successors, (8376), 24 states have internal predecessors, (8376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:50:43,105 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 349.0) internal successors, (8376), 24 states have internal predecessors, (8376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:50:43,105 INFO L175 Difference]: Start difference. First operand has 553 places, 2585 transitions, 120791 flow. Second operand 23 states and 3076 transitions. [2023-08-29 17:50:43,105 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 575 places, 2787 transitions, 130946 flow [2023-08-29 17:51:16,889 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 572 places, 2787 transitions, 130619 flow, removed 131 selfloop flow, removed 3 redundant places. [2023-08-29 17:51:16,960 INFO L231 Difference]: Finished difference. Result has 579 places, 2600 transitions, 123864 flow [2023-08-29 17:51:16,962 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=349, PETRI_DIFFERENCE_MINUEND_FLOW=120464, PETRI_DIFFERENCE_MINUEND_PLACES=550, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2585, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1122, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1454, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=123864, PETRI_PLACES=579, PETRI_TRANSITIONS=2600} [2023-08-29 17:51:16,962 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 502 predicate places. [2023-08-29 17:51:16,962 INFO L495 AbstractCegarLoop]: Abstraction has has 579 places, 2600 transitions, 123864 flow [2023-08-29 17:51:16,963 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 125.58333333333333) internal successors, (1507), 12 states have internal predecessors, (1507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:51:16,963 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:51:16,963 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:51:16,963 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-08-29 17:51:16,963 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-08-29 17:51:16,964 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:51:16,964 INFO L85 PathProgramCache]: Analyzing trace with hash 1571631184, now seen corresponding path program 8 times [2023-08-29 17:51:16,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:51:16,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069461199] [2023-08-29 17:51:16,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:51:16,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:51:16,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:51:17,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:51:17,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:51:17,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069461199] [2023-08-29 17:51:17,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1069461199] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:51:17,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:51:17,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-29 17:51:17,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484869612] [2023-08-29 17:51:17,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:51:17,549 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-29 17:51:17,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:51:17,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-29 17:51:17,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2023-08-29 17:51:18,348 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 349 [2023-08-29 17:51:18,349 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 579 places, 2600 transitions, 123864 flow. Second operand has 12 states, 12 states have (on average 125.58333333333333) internal successors, (1507), 12 states have internal predecessors, (1507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:51:18,349 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:51:18,349 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 349 [2023-08-29 17:51:18,349 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:51:51,948 INFO L130 PetriNetUnfolder]: 14823/35056 cut-off events. [2023-08-29 17:51:51,948 INFO L131 PetriNetUnfolder]: For 2231152/2232727 co-relation queries the response was YES. [2023-08-29 17:51:53,451 INFO L83 FinitePrefix]: Finished finitePrefix Result has 363856 conditions, 35056 events. 14823/35056 cut-off events. For 2231152/2232727 co-relation queries the response was YES. Maximal size of possible extension queue 1118. Compared 379694 event pairs, 3139 based on Foata normal form. 402/34733 useless extension candidates. Maximal degree in co-relation 363628. Up to 17738 conditions per place. [2023-08-29 17:51:53,615 INFO L137 encePairwiseOnDemand]: 331/349 looper letters, 1438 selfloop transitions, 898 changer transitions 0/2748 dead transitions. [2023-08-29 17:51:53,615 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 595 places, 2748 transitions, 132476 flow [2023-08-29 17:51:53,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-08-29 17:51:53,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-08-29 17:51:53,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2298 transitions. [2023-08-29 17:51:53,618 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.38732513062531604 [2023-08-29 17:51:53,618 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2298 transitions. [2023-08-29 17:51:53,618 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2298 transitions. [2023-08-29 17:51:53,619 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:51:53,619 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2298 transitions. [2023-08-29 17:51:53,621 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 135.1764705882353) internal successors, (2298), 17 states have internal predecessors, (2298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:51:53,624 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 349.0) internal successors, (6282), 18 states have internal predecessors, (6282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:51:53,625 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 349.0) internal successors, (6282), 18 states have internal predecessors, (6282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:51:53,625 INFO L175 Difference]: Start difference. First operand has 579 places, 2600 transitions, 123864 flow. Second operand 17 states and 2298 transitions. [2023-08-29 17:51:53,625 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 595 places, 2748 transitions, 132476 flow [2023-08-29 17:52:28,072 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 583 places, 2748 transitions, 131240 flow, removed 43 selfloop flow, removed 12 redundant places. [2023-08-29 17:52:28,143 INFO L231 Difference]: Finished difference. Result has 590 places, 2622 transitions, 125665 flow [2023-08-29 17:52:28,145 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=349, PETRI_DIFFERENCE_MINUEND_FLOW=122636, PETRI_DIFFERENCE_MINUEND_PLACES=567, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2600, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=877, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1711, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=125665, PETRI_PLACES=590, PETRI_TRANSITIONS=2622} [2023-08-29 17:52:28,146 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 513 predicate places. [2023-08-29 17:52:28,146 INFO L495 AbstractCegarLoop]: Abstraction has has 590 places, 2622 transitions, 125665 flow [2023-08-29 17:52:28,146 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 125.58333333333333) internal successors, (1507), 12 states have internal predecessors, (1507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:52:28,146 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:52:28,147 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:52:28,147 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-08-29 17:52:28,147 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-08-29 17:52:28,147 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:52:28,147 INFO L85 PathProgramCache]: Analyzing trace with hash -791660194, now seen corresponding path program 9 times [2023-08-29 17:52:28,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:52:28,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143014588] [2023-08-29 17:52:28,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:52:28,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:52:28,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:52:28,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:52:28,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:52:28,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143014588] [2023-08-29 17:52:28,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2143014588] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:52:28,870 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:52:28,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-29 17:52:28,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370622410] [2023-08-29 17:52:28,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:52:28,871 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-29 17:52:28,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:52:28,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-29 17:52:28,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2023-08-29 17:52:29,781 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 349 [2023-08-29 17:52:29,782 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 590 places, 2622 transitions, 125665 flow. Second operand has 12 states, 12 states have (on average 125.58333333333333) internal successors, (1507), 12 states have internal predecessors, (1507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:52:29,782 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:52:29,782 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 349 [2023-08-29 17:52:29,782 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:53:09,370 INFO L130 PetriNetUnfolder]: 14886/35180 cut-off events. [2023-08-29 17:53:09,370 INFO L131 PetriNetUnfolder]: For 2332137/2333625 co-relation queries the response was YES. [2023-08-29 17:53:10,769 INFO L83 FinitePrefix]: Finished finitePrefix Result has 369894 conditions, 35180 events. 14886/35180 cut-off events. For 2332137/2333625 co-relation queries the response was YES. Maximal size of possible extension queue 1125. Compared 381031 event pairs, 3178 based on Foata normal form. 357/34795 useless extension candidates. Maximal degree in co-relation 369659. Up to 17732 conditions per place. [2023-08-29 17:53:10,923 INFO L137 encePairwiseOnDemand]: 331/349 looper letters, 1406 selfloop transitions, 994 changer transitions 0/2812 dead transitions. [2023-08-29 17:53:10,923 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 610 places, 2812 transitions, 135548 flow [2023-08-29 17:53:10,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-08-29 17:53:10,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2023-08-29 17:53:10,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2812 transitions. [2023-08-29 17:53:10,925 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.38368126620275617 [2023-08-29 17:53:10,925 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 2812 transitions. [2023-08-29 17:53:10,925 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 2812 transitions. [2023-08-29 17:53:10,926 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:53:10,926 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 2812 transitions. [2023-08-29 17:53:10,928 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 133.9047619047619) internal successors, (2812), 21 states have internal predecessors, (2812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:53:10,932 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 349.0) internal successors, (7678), 22 states have internal predecessors, (7678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:53:10,933 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 349.0) internal successors, (7678), 22 states have internal predecessors, (7678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:53:10,933 INFO L175 Difference]: Start difference. First operand has 590 places, 2622 transitions, 125665 flow. Second operand 21 states and 2812 transitions. [2023-08-29 17:53:10,933 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 610 places, 2812 transitions, 135548 flow [2023-08-29 17:53:44,966 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 605 places, 2812 transitions, 135027 flow, removed 164 selfloop flow, removed 5 redundant places. [2023-08-29 17:53:45,039 INFO L231 Difference]: Finished difference. Result has 614 places, 2658 transitions, 128816 flow [2023-08-29 17:53:45,041 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=349, PETRI_DIFFERENCE_MINUEND_FLOW=125176, PETRI_DIFFERENCE_MINUEND_PLACES=585, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2622, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=960, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1644, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=128816, PETRI_PLACES=614, PETRI_TRANSITIONS=2658} [2023-08-29 17:53:45,041 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, 537 predicate places. [2023-08-29 17:53:45,041 INFO L495 AbstractCegarLoop]: Abstraction has has 614 places, 2658 transitions, 128816 flow [2023-08-29 17:53:45,042 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 125.58333333333333) internal successors, (1507), 12 states have internal predecessors, (1507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:53:45,042 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:53:45,042 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:53:45,042 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-08-29 17:53:45,042 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-08-29 17:53:45,043 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:53:45,043 INFO L85 PathProgramCache]: Analyzing trace with hash -1107013662, now seen corresponding path program 10 times [2023-08-29 17:53:45,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:53:45,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637212187] [2023-08-29 17:53:45,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:53:45,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:53:45,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:53:45,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:53:45,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:53:45,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637212187] [2023-08-29 17:53:45,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1637212187] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:53:45,616 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:53:45,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-29 17:53:45,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649732149] [2023-08-29 17:53:45,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:53:45,617 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-29 17:53:45,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:53:45,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-29 17:53:45,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2023-08-29 17:53:46,600 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 349 [2023-08-29 17:53:46,601 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 614 places, 2658 transitions, 128816 flow. Second operand has 12 states, 12 states have (on average 125.58333333333333) internal successors, (1507), 12 states have internal predecessors, (1507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:53:46,601 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:53:46,601 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 349 [2023-08-29 17:53:46,601 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:54:23,631 INFO L130 PetriNetUnfolder]: 14876/35157 cut-off events. [2023-08-29 17:54:23,632 INFO L131 PetriNetUnfolder]: For 2452556/2454071 co-relation queries the response was YES. [2023-08-29 17:54:24,923 INFO L83 FinitePrefix]: Finished finitePrefix Result has 374715 conditions, 35157 events. 14876/35157 cut-off events. For 2452556/2454071 co-relation queries the response was YES. Maximal size of possible extension queue 1123. Compared 380862 event pairs, 3160 based on Foata normal form. 384/35121 useless extension candidates. Maximal degree in co-relation 374471. Up to 17774 conditions per place. [2023-08-29 17:54:25,083 INFO L137 encePairwiseOnDemand]: 331/349 looper letters, 1258 selfloop transitions, 1187 changer transitions 0/2857 dead transitions. [2023-08-29 17:54:25,084 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 637 places, 2857 transitions, 139102 flow [2023-08-29 17:54:25,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-08-29 17:54:25,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2023-08-29 17:54:25,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 3209 transitions. [2023-08-29 17:54:25,086 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3831184336198663 [2023-08-29 17:54:25,086 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 3209 transitions. [2023-08-29 17:54:25,086 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 3209 transitions. [2023-08-29 17:54:25,087 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:54:25,087 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 3209 transitions. [2023-08-29 17:54:25,089 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 133.70833333333334) internal successors, (3209), 24 states have internal predecessors, (3209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:54:25,094 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 349.0) internal successors, (8725), 25 states have internal predecessors, (8725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:54:25,095 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 349.0) internal successors, (8725), 25 states have internal predecessors, (8725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:54:25,095 INFO L175 Difference]: Start difference. First operand has 614 places, 2658 transitions, 128816 flow. Second operand 24 states and 3209 transitions. [2023-08-29 17:54:25,095 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 637 places, 2857 transitions, 139102 flow Killed by 15