./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/goblint-regression/09-regions_17-arrayloop_nr.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/goblint-regression/09-regions_17-arrayloop_nr.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 b29c7049a333b10d890b8afae901738020ed1f084c2a7d471b316f0abdba3430 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-29 02:21:43,317 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 02:21:43,319 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 02:21:43,356 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 02:21:43,357 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 02:21:43,360 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 02:21:43,366 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 02:21:43,369 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 02:21:43,371 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 02:21:43,375 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 02:21:43,376 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 02:21:43,378 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 02:21:43,378 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 02:21:43,380 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 02:21:43,381 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 02:21:43,386 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 02:21:43,386 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 02:21:43,388 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 02:21:43,389 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 02:21:43,394 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 02:21:43,395 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 02:21:43,396 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 02:21:43,397 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 02:21:43,398 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 02:21:43,404 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 02:21:43,404 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 02:21:43,405 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 02:21:43,407 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 02:21:43,407 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 02:21:43,408 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 02:21:43,408 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 02:21:43,409 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 02:21:43,411 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 02:21:43,411 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 02:21:43,412 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 02:21:43,412 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 02:21:43,413 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 02:21:43,413 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 02:21:43,413 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 02:21:43,414 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 02:21:43,414 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 02:21:43,416 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-29 02:21:43,448 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 02:21:43,449 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 02:21:43,450 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 02:21:43,450 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 02:21:43,451 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 02:21:43,451 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 02:21:43,451 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 02:21:43,452 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 02:21:43,452 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 02:21:43,452 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 02:21:43,453 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 02:21:43,453 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 02:21:43,453 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 02:21:43,453 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 02:21:43,453 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 02:21:43,453 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-29 02:21:43,454 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 02:21:43,454 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-29 02:21:43,454 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-29 02:21:43,454 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 02:21:43,454 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-29 02:21:43,454 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 02:21:43,455 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-29 02:21:43,455 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 02:21:43,455 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 02:21:43,455 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 02:21:43,455 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 02:21:43,456 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 02:21:43,456 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 02:21:43,456 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-29 02:21:43,456 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 02:21:43,456 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 02:21:43,456 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 02:21:43,457 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-29 02:21:43,457 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 02:21:43,457 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 02:21:43,457 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 02:21:43,457 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b29c7049a333b10d890b8afae901738020ed1f084c2a7d471b316f0abdba3430 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-29 02:21:43,759 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 02:21:43,776 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 02:21:43,778 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 02:21:43,779 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 02:21:43,779 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 02:21:43,781 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/09-regions_17-arrayloop_nr.i [2023-08-29 02:21:45,035 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 02:21:45,308 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 02:21:45,309 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/09-regions_17-arrayloop_nr.i [2023-08-29 02:21:45,332 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb5e3e5bd/70a652d1d04a47acb555028edb5636bf/FLAGa181befdf [2023-08-29 02:21:45,345 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb5e3e5bd/70a652d1d04a47acb555028edb5636bf [2023-08-29 02:21:45,349 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 02:21:45,350 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 02:21:45,352 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 02:21:45,352 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 02:21:45,354 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 02:21:45,355 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 02:21:45" (1/1) ... [2023-08-29 02:21:45,356 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b407991 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:21:45, skipping insertion in model container [2023-08-29 02:21:45,356 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 02:21:45" (1/1) ... [2023-08-29 02:21:45,362 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 02:21:45,423 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 02:21:45,958 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 02:21:45,980 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 02:21:46,041 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 02:21:46,137 INFO L208 MainTranslator]: Completed translation [2023-08-29 02:21:46,137 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:21:46 WrapperNode [2023-08-29 02:21:46,138 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 02:21:46,139 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 02:21:46,139 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 02:21:46,139 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 02:21:46,144 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:21:46" (1/1) ... [2023-08-29 02:21:46,163 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:21:46" (1/1) ... [2023-08-29 02:21:46,195 INFO L138 Inliner]: procedures = 368, calls = 28, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 232 [2023-08-29 02:21:46,196 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 02:21:46,197 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 02:21:46,200 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 02:21:46,201 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 02:21:46,208 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:21:46" (1/1) ... [2023-08-29 02:21:46,209 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:21:46" (1/1) ... [2023-08-29 02:21:46,217 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:21:46" (1/1) ... [2023-08-29 02:21:46,217 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:21:46" (1/1) ... [2023-08-29 02:21:46,236 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:21:46" (1/1) ... [2023-08-29 02:21:46,239 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:21:46" (1/1) ... [2023-08-29 02:21:46,241 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:21:46" (1/1) ... [2023-08-29 02:21:46,243 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:21:46" (1/1) ... [2023-08-29 02:21:46,246 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 02:21:46,247 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 02:21:46,247 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 02:21:46,247 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 02:21:46,248 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:21:46" (1/1) ... [2023-08-29 02:21:46,265 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 02:21:46,277 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 02:21:46,298 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 02:21:46,300 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 02:21:46,324 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 02:21:46,324 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-08-29 02:21:46,325 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 02:21:46,325 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-29 02:21:46,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-29 02:21:46,325 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-29 02:21:46,325 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-29 02:21:46,325 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-29 02:21:46,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-08-29 02:21:46,326 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-29 02:21:46,326 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-29 02:21:46,326 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 02:21:46,326 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 02:21:46,327 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 02:21:46,506 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 02:21:46,507 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 02:21:46,915 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 02:21:46,922 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 02:21:46,923 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-08-29 02:21:46,924 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 02:21:46 BoogieIcfgContainer [2023-08-29 02:21:46,925 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 02:21:46,926 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 02:21:46,927 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 02:21:46,929 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 02:21:46,929 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 02:21:45" (1/3) ... [2023-08-29 02:21:46,930 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53c9cd28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 02:21:46, skipping insertion in model container [2023-08-29 02:21:46,930 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:21:46" (2/3) ... [2023-08-29 02:21:46,930 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53c9cd28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 02:21:46, skipping insertion in model container [2023-08-29 02:21:46,930 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 02:21:46" (3/3) ... [2023-08-29 02:21:46,931 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_17-arrayloop_nr.i [2023-08-29 02:21:46,938 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-29 02:21:46,945 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 02:21:46,946 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2023-08-29 02:21:46,946 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 02:21:47,018 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-29 02:21:47,049 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 253 places, 255 transitions, 515 flow [2023-08-29 02:21:47,177 INFO L130 PetriNetUnfolder]: 6/254 cut-off events. [2023-08-29 02:21:47,177 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 02:21:47,186 INFO L83 FinitePrefix]: Finished finitePrefix Result has 258 conditions, 254 events. 6/254 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 405 event pairs, 0 based on Foata normal form. 0/230 useless extension candidates. Maximal degree in co-relation 191. Up to 2 conditions per place. [2023-08-29 02:21:47,187 INFO L82 GeneralOperation]: Start removeDead. Operand has 253 places, 255 transitions, 515 flow [2023-08-29 02:21:47,197 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 252 places, 254 transitions, 511 flow [2023-08-29 02:21:47,199 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 02:21:47,211 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 252 places, 254 transitions, 511 flow [2023-08-29 02:21:47,217 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 252 places, 254 transitions, 511 flow [2023-08-29 02:21:47,217 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 252 places, 254 transitions, 511 flow [2023-08-29 02:21:47,270 INFO L130 PetriNetUnfolder]: 6/254 cut-off events. [2023-08-29 02:21:47,271 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 02:21:47,275 INFO L83 FinitePrefix]: Finished finitePrefix Result has 258 conditions, 254 events. 6/254 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 405 event pairs, 0 based on Foata normal form. 0/230 useless extension candidates. Maximal degree in co-relation 191. Up to 2 conditions per place. [2023-08-29 02:21:47,284 INFO L119 LiptonReduction]: Number of co-enabled transitions 17820 [2023-08-29 02:22:01,183 INFO L134 LiptonReduction]: Checked pairs total: 108171 [2023-08-29 02:22:01,183 INFO L136 LiptonReduction]: Total number of compositions: 147 [2023-08-29 02:22:01,195 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 02:22:01,200 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;@44e45572, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 02:22:01,200 INFO L358 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2023-08-29 02:22:01,203 INFO L130 PetriNetUnfolder]: 1/3 cut-off events. [2023-08-29 02:22:01,203 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 02:22:01,204 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:22:01,204 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2023-08-29 02:22:01,205 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-29 02:22:01,208 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:22:01,208 INFO L85 PathProgramCache]: Analyzing trace with hash 25566, now seen corresponding path program 1 times [2023-08-29 02:22:01,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:22:01,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80383918] [2023-08-29 02:22:01,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:22:01,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:22:01,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:22:01,336 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 02:22:01,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:22:01,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80383918] [2023-08-29 02:22:01,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [80383918] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:22:01,338 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:22:01,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-29 02:22:01,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732528357] [2023-08-29 02:22:01,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:22:01,346 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-29 02:22:01,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:22:01,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-29 02:22:01,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-29 02:22:01,395 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 251 out of 402 [2023-08-29 02:22:01,397 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 122 transitions, 247 flow. Second operand has 2 states, 2 states have (on average 252.0) internal successors, (504), 2 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:22:01,397 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:22:01,397 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 251 of 402 [2023-08-29 02:22:01,398 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:22:01,737 INFO L130 PetriNetUnfolder]: 376/1700 cut-off events. [2023-08-29 02:22:01,738 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 02:22:01,739 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2457 conditions, 1700 events. 376/1700 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 10916 event pairs, 336 based on Foata normal form. 0/1615 useless extension candidates. Maximal degree in co-relation 2444. Up to 753 conditions per place. [2023-08-29 02:22:01,745 INFO L137 encePairwiseOnDemand]: 399/402 looper letters, 43 selfloop transitions, 0 changer transitions 0/119 dead transitions. [2023-08-29 02:22:01,745 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 119 transitions, 327 flow [2023-08-29 02:22:01,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-29 02:22:01,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-29 02:22:01,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 548 transitions. [2023-08-29 02:22:01,766 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.681592039800995 [2023-08-29 02:22:01,766 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 548 transitions. [2023-08-29 02:22:01,767 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 548 transitions. [2023-08-29 02:22:01,770 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:22:01,772 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 548 transitions. [2023-08-29 02:22:01,776 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 274.0) internal successors, (548), 2 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:22:01,781 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 402.0) internal successors, (1206), 3 states have internal predecessors, (1206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:22:01,782 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 402.0) internal successors, (1206), 3 states have internal predecessors, (1206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:22:01,784 INFO L175 Difference]: Start difference. First operand has 123 places, 122 transitions, 247 flow. Second operand 2 states and 548 transitions. [2023-08-29 02:22:01,785 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 119 transitions, 327 flow [2023-08-29 02:22:01,787 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 119 transitions, 326 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 02:22:01,790 INFO L231 Difference]: Finished difference. Result has 120 places, 119 transitions, 240 flow [2023-08-29 02:22:01,792 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=402, PETRI_DIFFERENCE_MINUEND_FLOW=240, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=240, PETRI_PLACES=120, PETRI_TRANSITIONS=119} [2023-08-29 02:22:01,795 INFO L281 CegarLoopForPetriNet]: 123 programPoint places, -3 predicate places. [2023-08-29 02:22:01,795 INFO L495 AbstractCegarLoop]: Abstraction has has 120 places, 119 transitions, 240 flow [2023-08-29 02:22:01,796 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 252.0) internal successors, (504), 2 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:22:01,796 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:22:01,796 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:22:01,797 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-29 02:22:01,797 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-29 02:22:01,806 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:22:01,807 INFO L85 PathProgramCache]: Analyzing trace with hash 1621363482, now seen corresponding path program 1 times [2023-08-29 02:22:01,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:22:01,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795316099] [2023-08-29 02:22:01,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:22:01,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:22:01,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:22:01,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:22:01,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:22:01,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795316099] [2023-08-29 02:22:01,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795316099] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:22:01,907 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:22:01,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 02:22:01,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839081939] [2023-08-29 02:22:01,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:22:01,909 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 02:22:01,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:22:01,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 02:22:01,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 02:22:01,974 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 243 out of 402 [2023-08-29 02:22:01,975 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 119 transitions, 240 flow. Second operand has 3 states, 3 states have (on average 245.33333333333334) internal successors, (736), 3 states have internal predecessors, (736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:22:01,975 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:22:01,975 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 243 of 402 [2023-08-29 02:22:01,975 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:22:02,543 INFO L130 PetriNetUnfolder]: 716/3057 cut-off events. [2023-08-29 02:22:02,543 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 02:22:02,547 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4495 conditions, 3057 events. 716/3057 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 20536 event pairs, 336 based on Foata normal form. 0/2921 useless extension candidates. Maximal degree in co-relation 4492. Up to 753 conditions per place. [2023-08-29 02:22:02,557 INFO L137 encePairwiseOnDemand]: 396/402 looper letters, 77 selfloop transitions, 4 changer transitions 0/157 dead transitions. [2023-08-29 02:22:02,557 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 157 transitions, 478 flow [2023-08-29 02:22:02,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 02:22:02,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 02:22:02,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 812 transitions. [2023-08-29 02:22:02,560 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6733001658374793 [2023-08-29 02:22:02,560 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 812 transitions. [2023-08-29 02:22:02,560 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 812 transitions. [2023-08-29 02:22:02,560 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:22:02,561 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 812 transitions. [2023-08-29 02:22:02,562 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 270.6666666666667) internal successors, (812), 3 states have internal predecessors, (812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:22:02,565 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 402.0) internal successors, (1608), 4 states have internal predecessors, (1608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:22:02,566 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 402.0) internal successors, (1608), 4 states have internal predecessors, (1608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:22:02,566 INFO L175 Difference]: Start difference. First operand has 120 places, 119 transitions, 240 flow. Second operand 3 states and 812 transitions. [2023-08-29 02:22:02,566 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 157 transitions, 478 flow [2023-08-29 02:22:02,568 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 157 transitions, 478 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 02:22:02,572 INFO L231 Difference]: Finished difference. Result has 123 places, 121 transitions, 264 flow [2023-08-29 02:22:02,572 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=402, PETRI_DIFFERENCE_MINUEND_FLOW=240, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=264, PETRI_PLACES=123, PETRI_TRANSITIONS=121} [2023-08-29 02:22:02,573 INFO L281 CegarLoopForPetriNet]: 123 programPoint places, 0 predicate places. [2023-08-29 02:22:02,576 INFO L495 AbstractCegarLoop]: Abstraction has has 123 places, 121 transitions, 264 flow [2023-08-29 02:22:02,577 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 245.33333333333334) internal successors, (736), 3 states have internal predecessors, (736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:22:02,577 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:22:02,577 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:22:02,577 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-29 02:22:02,578 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-29 02:22:02,580 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:22:02,580 INFO L85 PathProgramCache]: Analyzing trace with hash -621239689, now seen corresponding path program 1 times [2023-08-29 02:22:02,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:22:02,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304838383] [2023-08-29 02:22:02,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:22:02,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:22:02,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:22:02,702 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:22:02,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:22:02,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304838383] [2023-08-29 02:22:02,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1304838383] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-29 02:22:02,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [672018932] [2023-08-29 02:22:02,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:22:02,703 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 02:22:02,704 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 02:22:02,706 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-29 02:22:02,715 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-08-29 02:22:02,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:22:02,827 INFO L263 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 3 conjunts are in the unsatisfiable core [2023-08-29 02:22:02,831 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 02:22:02,856 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:22:02,857 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-29 02:22:02,885 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:22:02,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [672018932] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-29 02:22:02,885 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-29 02:22:02,885 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2023-08-29 02:22:02,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61835293] [2023-08-29 02:22:02,886 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-29 02:22:02,886 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 02:22:02,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:22:02,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 02:22:02,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 02:22:03,053 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 241 out of 402 [2023-08-29 02:22:03,054 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 121 transitions, 264 flow. Second operand has 6 states, 6 states have (on average 242.83333333333334) internal successors, (1457), 6 states have internal predecessors, (1457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:22:03,055 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:22:03,055 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 241 of 402 [2023-08-29 02:22:03,055 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:22:04,261 INFO L130 PetriNetUnfolder]: 1413/6102 cut-off events. [2023-08-29 02:22:04,262 INFO L131 PetriNetUnfolder]: For 63/63 co-relation queries the response was YES. [2023-08-29 02:22:04,269 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9066 conditions, 6102 events. 1413/6102 cut-off events. For 63/63 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 41949 event pairs, 229 based on Foata normal form. 51/5965 useless extension candidates. Maximal degree in co-relation 9061. Up to 698 conditions per place. [2023-08-29 02:22:04,284 INFO L137 encePairwiseOnDemand]: 395/402 looper letters, 165 selfloop transitions, 11 changer transitions 0/252 dead transitions. [2023-08-29 02:22:04,284 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 252 transitions, 888 flow [2023-08-29 02:22:04,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 02:22:04,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 02:22:04,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1628 transitions. [2023-08-29 02:22:04,288 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6749585406301825 [2023-08-29 02:22:04,288 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1628 transitions. [2023-08-29 02:22:04,288 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1628 transitions. [2023-08-29 02:22:04,289 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:22:04,289 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1628 transitions. [2023-08-29 02:22:04,292 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 271.3333333333333) internal successors, (1628), 6 states have internal predecessors, (1628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:22:04,296 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 402.0) internal successors, (2814), 7 states have internal predecessors, (2814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:22:04,297 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 402.0) internal successors, (2814), 7 states have internal predecessors, (2814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:22:04,298 INFO L175 Difference]: Start difference. First operand has 123 places, 121 transitions, 264 flow. Second operand 6 states and 1628 transitions. [2023-08-29 02:22:04,298 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 252 transitions, 888 flow [2023-08-29 02:22:04,300 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 252 transitions, 884 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 02:22:04,302 INFO L231 Difference]: Finished difference. Result has 131 places, 127 transitions, 338 flow [2023-08-29 02:22:04,303 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=402, PETRI_DIFFERENCE_MINUEND_FLOW=260, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=114, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=338, PETRI_PLACES=131, PETRI_TRANSITIONS=127} [2023-08-29 02:22:04,303 INFO L281 CegarLoopForPetriNet]: 123 programPoint places, 8 predicate places. [2023-08-29 02:22:04,303 INFO L495 AbstractCegarLoop]: Abstraction has has 131 places, 127 transitions, 338 flow [2023-08-29 02:22:04,304 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 242.83333333333334) internal successors, (1457), 6 states have internal predecessors, (1457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:22:04,305 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:22:04,305 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:22:04,311 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-08-29 02:22:04,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 02:22:04,512 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-29 02:22:04,512 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:22:04,512 INFO L85 PathProgramCache]: Analyzing trace with hash -1665303974, now seen corresponding path program 2 times [2023-08-29 02:22:04,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:22:04,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657504823] [2023-08-29 02:22:04,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:22:04,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:22:04,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:22:04,783 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:22:04,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:22:04,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657504823] [2023-08-29 02:22:04,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657504823] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-29 02:22:04,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1626016841] [2023-08-29 02:22:04,784 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-29 02:22:04,784 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 02:22:04,785 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 02:22:04,791 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-29 02:22:04,806 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-08-29 02:22:04,927 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-08-29 02:22:04,927 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-29 02:22:04,928 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 19 conjunts are in the unsatisfiable core [2023-08-29 02:22:04,931 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 02:22:04,963 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-08-29 02:22:04,985 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2023-08-29 02:22:05,014 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-29 02:22:05,015 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2023-08-29 02:22:05,079 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-29 02:22:05,080 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 38 [2023-08-29 02:22:05,105 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-08-29 02:22:05,106 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-29 02:22:05,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1626016841] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:22:05,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-29 02:22:05,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 12 [2023-08-29 02:22:05,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625898918] [2023-08-29 02:22:05,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:22:05,107 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-29 02:22:05,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:22:05,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-29 02:22:05,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2023-08-29 02:22:05,444 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 177 out of 402 [2023-08-29 02:22:05,445 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 127 transitions, 338 flow. Second operand has 7 states, 7 states have (on average 178.85714285714286) internal successors, (1252), 7 states have internal predecessors, (1252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:22:05,445 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:22:05,446 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 177 of 402 [2023-08-29 02:22:05,446 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:22:08,462 INFO L130 PetriNetUnfolder]: 9007/20807 cut-off events. [2023-08-29 02:22:08,462 INFO L131 PetriNetUnfolder]: For 1582/1582 co-relation queries the response was YES. [2023-08-29 02:22:08,482 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39843 conditions, 20807 events. 9007/20807 cut-off events. For 1582/1582 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 139638 event pairs, 708 based on Foata normal form. 0/19912 useless extension candidates. Maximal degree in co-relation 39835. Up to 15146 conditions per place. [2023-08-29 02:22:08,549 INFO L137 encePairwiseOnDemand]: 358/402 looper letters, 253 selfloop transitions, 151 changer transitions 0/428 dead transitions. [2023-08-29 02:22:08,549 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 428 transitions, 1958 flow [2023-08-29 02:22:08,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-29 02:22:08,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-29 02:22:08,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1616 transitions. [2023-08-29 02:22:08,554 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.574271499644634 [2023-08-29 02:22:08,554 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1616 transitions. [2023-08-29 02:22:08,554 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1616 transitions. [2023-08-29 02:22:08,555 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:22:08,555 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1616 transitions. [2023-08-29 02:22:08,558 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 230.85714285714286) internal successors, (1616), 7 states have internal predecessors, (1616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:22:08,562 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 402.0) internal successors, (3216), 8 states have internal predecessors, (3216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:22:08,564 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 402.0) internal successors, (3216), 8 states have internal predecessors, (3216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:22:08,564 INFO L175 Difference]: Start difference. First operand has 131 places, 127 transitions, 338 flow. Second operand 7 states and 1616 transitions. [2023-08-29 02:22:08,564 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 428 transitions, 1958 flow [2023-08-29 02:22:08,570 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 428 transitions, 1902 flow, removed 21 selfloop flow, removed 1 redundant places. [2023-08-29 02:22:08,574 INFO L231 Difference]: Finished difference. Result has 141 places, 312 transitions, 1450 flow [2023-08-29 02:22:08,575 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=402, PETRI_DIFFERENCE_MINUEND_FLOW=322, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=38, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1450, PETRI_PLACES=141, PETRI_TRANSITIONS=312} [2023-08-29 02:22:08,575 INFO L281 CegarLoopForPetriNet]: 123 programPoint places, 18 predicate places. [2023-08-29 02:22:08,576 INFO L495 AbstractCegarLoop]: Abstraction has has 141 places, 312 transitions, 1450 flow [2023-08-29 02:22:08,576 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 178.85714285714286) internal successors, (1252), 7 states have internal predecessors, (1252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:22:08,577 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:22:08,577 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:22:08,584 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-08-29 02:22:08,783 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2023-08-29 02:22:08,783 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-29 02:22:08,784 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:22:08,784 INFO L85 PathProgramCache]: Analyzing trace with hash -1104611333, now seen corresponding path program 1 times [2023-08-29 02:22:08,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:22:08,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485407096] [2023-08-29 02:22:08,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:22:08,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:22:08,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:22:09,011 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:22:09,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:22:09,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485407096] [2023-08-29 02:22:09,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [485407096] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-29 02:22:09,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [795586807] [2023-08-29 02:22:09,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:22:09,012 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 02:22:09,012 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 02:22:09,013 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-29 02:22:09,038 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-08-29 02:22:09,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:22:09,217 INFO L263 TraceCheckSpWp]: Trace formula consists of 563 conjuncts, 6 conjunts are in the unsatisfiable core [2023-08-29 02:22:09,218 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 02:22:09,236 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:22:09,237 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-29 02:22:09,290 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:22:09,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [795586807] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-29 02:22:09,290 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-29 02:22:09,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2023-08-29 02:22:09,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855216274] [2023-08-29 02:22:09,291 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-29 02:22:09,291 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-29 02:22:09,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:22:09,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-29 02:22:09,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2023-08-29 02:22:09,563 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 241 out of 402 [2023-08-29 02:22:09,566 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 312 transitions, 1450 flow. Second operand has 12 states, 12 states have (on average 242.5) internal successors, (2910), 12 states have internal predecessors, (2910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:22:09,566 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:22:09,566 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 241 of 402 [2023-08-29 02:22:09,566 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:22:14,928 INFO L130 PetriNetUnfolder]: 6709/23554 cut-off events. [2023-08-29 02:22:14,929 INFO L131 PetriNetUnfolder]: For 5839/6096 co-relation queries the response was YES. [2023-08-29 02:22:14,965 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51687 conditions, 23554 events. 6709/23554 cut-off events. For 5839/6096 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 171636 event pairs, 282 based on Foata normal form. 163/23291 useless extension candidates. Maximal degree in co-relation 51673. Up to 9167 conditions per place. [2023-08-29 02:22:15,030 INFO L137 encePairwiseOnDemand]: 395/402 looper letters, 553 selfloop transitions, 23 changer transitions 0/820 dead transitions. [2023-08-29 02:22:15,030 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 820 transitions, 4376 flow [2023-08-29 02:22:15,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-29 02:22:15,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-29 02:22:15,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 3308 transitions. [2023-08-29 02:22:15,037 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.685737976782753 [2023-08-29 02:22:15,037 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 3308 transitions. [2023-08-29 02:22:15,037 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 3308 transitions. [2023-08-29 02:22:15,039 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:22:15,039 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 3308 transitions. [2023-08-29 02:22:15,045 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 275.6666666666667) internal successors, (3308), 12 states have internal predecessors, (3308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:22:15,052 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 402.0) internal successors, (5226), 13 states have internal predecessors, (5226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:22:15,053 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 402.0) internal successors, (5226), 13 states have internal predecessors, (5226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:22:15,053 INFO L175 Difference]: Start difference. First operand has 141 places, 312 transitions, 1450 flow. Second operand 12 states and 3308 transitions. [2023-08-29 02:22:15,053 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 820 transitions, 4376 flow [2023-08-29 02:22:15,139 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 820 transitions, 4376 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 02:22:15,148 INFO L231 Difference]: Finished difference. Result has 159 places, 325 transitions, 1632 flow [2023-08-29 02:22:15,148 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=402, PETRI_DIFFERENCE_MINUEND_FLOW=1450, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=312, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=300, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1632, PETRI_PLACES=159, PETRI_TRANSITIONS=325} [2023-08-29 02:22:15,151 INFO L281 CegarLoopForPetriNet]: 123 programPoint places, 36 predicate places. [2023-08-29 02:22:15,151 INFO L495 AbstractCegarLoop]: Abstraction has has 159 places, 325 transitions, 1632 flow [2023-08-29 02:22:15,152 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 242.5) internal successors, (2910), 12 states have internal predecessors, (2910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:22:15,152 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:22:15,152 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:22:15,159 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-08-29 02:22:15,358 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 02:22:15,359 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-29 02:22:15,359 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:22:15,359 INFO L85 PathProgramCache]: Analyzing trace with hash 2058752731, now seen corresponding path program 2 times [2023-08-29 02:22:15,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:22:15,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426451435] [2023-08-29 02:22:15,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:22:15,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:22:15,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:22:16,522 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-29 02:22:16,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:22:16,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426451435] [2023-08-29 02:22:16,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [426451435] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:22:16,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:22:16,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 02:22:16,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218769850] [2023-08-29 02:22:16,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:22:16,526 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 02:22:16,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:22:16,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 02:22:16,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 02:22:16,857 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 175 out of 402 [2023-08-29 02:22:16,858 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 325 transitions, 1632 flow. Second operand has 6 states, 6 states have (on average 177.16666666666666) internal successors, (1063), 6 states have internal predecessors, (1063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:22:16,859 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:22:16,859 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 175 of 402 [2023-08-29 02:22:16,859 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:22:27,762 INFO L130 PetriNetUnfolder]: 24557/55220 cut-off events. [2023-08-29 02:22:27,763 INFO L131 PetriNetUnfolder]: For 19804/20050 co-relation queries the response was YES. [2023-08-29 02:22:27,879 INFO L83 FinitePrefix]: Finished finitePrefix Result has 136541 conditions, 55220 events. 24557/55220 cut-off events. For 19804/20050 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 371076 event pairs, 7520 based on Foata normal form. 0/54245 useless extension candidates. Maximal degree in co-relation 136520. Up to 47529 conditions per place. [2023-08-29 02:22:28,059 INFO L137 encePairwiseOnDemand]: 372/402 looper letters, 339 selfloop transitions, 109 changer transitions 0/492 dead transitions. [2023-08-29 02:22:28,059 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 492 transitions, 2954 flow [2023-08-29 02:22:28,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 02:22:28,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 02:22:28,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1306 transitions. [2023-08-29 02:22:28,068 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5414593698175788 [2023-08-29 02:22:28,068 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1306 transitions. [2023-08-29 02:22:28,068 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1306 transitions. [2023-08-29 02:22:28,071 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:22:28,071 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1306 transitions. [2023-08-29 02:22:28,075 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 217.66666666666666) internal successors, (1306), 6 states have internal predecessors, (1306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:22:28,079 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 402.0) internal successors, (2814), 7 states have internal predecessors, (2814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:22:28,080 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 402.0) internal successors, (2814), 7 states have internal predecessors, (2814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:22:28,080 INFO L175 Difference]: Start difference. First operand has 159 places, 325 transitions, 1632 flow. Second operand 6 states and 1306 transitions. [2023-08-29 02:22:28,080 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 164 places, 492 transitions, 2954 flow [2023-08-29 02:22:28,228 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 161 places, 492 transitions, 2928 flow, removed 7 selfloop flow, removed 3 redundant places. [2023-08-29 02:22:28,233 INFO L231 Difference]: Finished difference. Result has 165 places, 428 transitions, 2261 flow [2023-08-29 02:22:28,234 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=402, PETRI_DIFFERENCE_MINUEND_FLOW=1606, PETRI_DIFFERENCE_MINUEND_PLACES=156, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=325, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=288, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2261, PETRI_PLACES=165, PETRI_TRANSITIONS=428} [2023-08-29 02:22:28,234 INFO L281 CegarLoopForPetriNet]: 123 programPoint places, 42 predicate places. [2023-08-29 02:22:28,235 INFO L495 AbstractCegarLoop]: Abstraction has has 165 places, 428 transitions, 2261 flow [2023-08-29 02:22:28,235 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 177.16666666666666) internal successors, (1063), 6 states have internal predecessors, (1063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:22:28,235 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:22:28,236 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:22:28,236 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-29 02:22:28,236 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-29 02:22:28,236 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:22:28,236 INFO L85 PathProgramCache]: Analyzing trace with hash 1375590774, now seen corresponding path program 1 times [2023-08-29 02:22:28,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:22:28,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460849898] [2023-08-29 02:22:28,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:22:28,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:22:28,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:22:29,634 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-29 02:22:29,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:22:29,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460849898] [2023-08-29 02:22:29,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1460849898] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:22:29,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:22:29,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 02:22:29,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378593549] [2023-08-29 02:22:29,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:22:29,636 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-29 02:22:29,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:22:29,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-29 02:22:29,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2023-08-29 02:22:30,308 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 402 [2023-08-29 02:22:30,309 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 428 transitions, 2261 flow. Second operand has 9 states, 9 states have (on average 174.0) internal successors, (1566), 9 states have internal predecessors, (1566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:22:30,309 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:22:30,310 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 402 [2023-08-29 02:22:30,310 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:22:51,566 INFO L130 PetriNetUnfolder]: 46463/104592 cut-off events. [2023-08-29 02:22:51,566 INFO L131 PetriNetUnfolder]: For 55104/55624 co-relation queries the response was YES. [2023-08-29 02:22:51,876 INFO L83 FinitePrefix]: Finished finitePrefix Result has 296858 conditions, 104592 events. 46463/104592 cut-off events. For 55104/55624 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 812348 event pairs, 2415 based on Foata normal form. 190/102591 useless extension candidates. Maximal degree in co-relation 296832. Up to 42920 conditions per place. [2023-08-29 02:22:52,162 INFO L137 encePairwiseOnDemand]: 364/402 looper letters, 855 selfloop transitions, 157 changer transitions 1/1053 dead transitions. [2023-08-29 02:22:52,162 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 177 places, 1053 transitions, 7657 flow [2023-08-29 02:22:52,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-08-29 02:22:52,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-08-29 02:22:52,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2767 transitions. [2023-08-29 02:22:52,169 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5294680443934175 [2023-08-29 02:22:52,169 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2767 transitions. [2023-08-29 02:22:52,169 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2767 transitions. [2023-08-29 02:22:52,171 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:22:52,171 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2767 transitions. [2023-08-29 02:22:52,176 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 212.84615384615384) internal successors, (2767), 13 states have internal predecessors, (2767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:22:52,183 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 402.0) internal successors, (5628), 14 states have internal predecessors, (5628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:22:52,184 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 402.0) internal successors, (5628), 14 states have internal predecessors, (5628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:22:52,184 INFO L175 Difference]: Start difference. First operand has 165 places, 428 transitions, 2261 flow. Second operand 13 states and 2767 transitions. [2023-08-29 02:22:52,185 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 177 places, 1053 transitions, 7657 flow [2023-08-29 02:22:53,282 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 177 places, 1053 transitions, 7585 flow, removed 36 selfloop flow, removed 0 redundant places. [2023-08-29 02:22:53,292 INFO L231 Difference]: Finished difference. Result has 188 places, 585 transitions, 4179 flow [2023-08-29 02:22:53,292 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=402, PETRI_DIFFERENCE_MINUEND_FLOW=2237, PETRI_DIFFERENCE_MINUEND_PLACES=165, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=428, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=286, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=4179, PETRI_PLACES=188, PETRI_TRANSITIONS=585} [2023-08-29 02:22:53,293 INFO L281 CegarLoopForPetriNet]: 123 programPoint places, 65 predicate places. [2023-08-29 02:22:53,293 INFO L495 AbstractCegarLoop]: Abstraction has has 188 places, 585 transitions, 4179 flow [2023-08-29 02:22:53,293 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 174.0) internal successors, (1566), 9 states have internal predecessors, (1566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:22:53,294 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:22:53,294 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:22:53,294 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-29 02:22:53,294 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-29 02:22:53,294 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:22:53,294 INFO L85 PathProgramCache]: Analyzing trace with hash 869726804, now seen corresponding path program 2 times [2023-08-29 02:22:53,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:22:53,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488957128] [2023-08-29 02:22:53,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:22:53,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:22:53,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:22:54,368 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-29 02:22:54,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:22:54,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488957128] [2023-08-29 02:22:54,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1488957128] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:22:54,370 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:22:54,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 02:22:54,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047959636] [2023-08-29 02:22:54,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:22:54,370 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-29 02:22:54,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:22:54,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-29 02:22:54,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2023-08-29 02:22:55,024 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 402 [2023-08-29 02:22:55,025 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 188 places, 585 transitions, 4179 flow. Second operand has 9 states, 9 states have (on average 174.0) internal successors, (1566), 9 states have internal predecessors, (1566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:22:55,025 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:22:55,025 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 402 [2023-08-29 02:22:55,026 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:23:21,109 INFO L130 PetriNetUnfolder]: 46323/104382 cut-off events. [2023-08-29 02:23:21,110 INFO L131 PetriNetUnfolder]: For 98994/99564 co-relation queries the response was YES. [2023-08-29 02:23:21,465 INFO L83 FinitePrefix]: Finished finitePrefix Result has 321478 conditions, 104382 events. 46323/104382 cut-off events. For 98994/99564 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 809977 event pairs, 3784 based on Foata normal form. 110/102451 useless extension candidates. Maximal degree in co-relation 321440. Up to 49188 conditions per place. [2023-08-29 02:23:21,743 INFO L137 encePairwiseOnDemand]: 362/402 looper letters, 838 selfloop transitions, 168 changer transitions 2/1048 dead transitions. [2023-08-29 02:23:21,744 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 201 places, 1048 transitions, 8698 flow [2023-08-29 02:23:21,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-29 02:23:21,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-29 02:23:21,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2895 transitions. [2023-08-29 02:23:21,751 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5143923240938166 [2023-08-29 02:23:21,751 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2895 transitions. [2023-08-29 02:23:21,751 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2895 transitions. [2023-08-29 02:23:21,753 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:23:21,753 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2895 transitions. [2023-08-29 02:23:21,758 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 206.78571428571428) internal successors, (2895), 14 states have internal predecessors, (2895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:23:21,765 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 402.0) internal successors, (6030), 15 states have internal predecessors, (6030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:23:21,766 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 402.0) internal successors, (6030), 15 states have internal predecessors, (6030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:23:21,766 INFO L175 Difference]: Start difference. First operand has 188 places, 585 transitions, 4179 flow. Second operand 14 states and 2895 transitions. [2023-08-29 02:23:21,766 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 201 places, 1048 transitions, 8698 flow [2023-08-29 02:23:24,610 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 201 places, 1048 transitions, 8698 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 02:23:24,619 INFO L231 Difference]: Finished difference. Result has 211 places, 628 transitions, 5307 flow [2023-08-29 02:23:24,620 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=402, PETRI_DIFFERENCE_MINUEND_FLOW=4179, PETRI_DIFFERENCE_MINUEND_PLACES=188, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=585, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=129, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=434, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=5307, PETRI_PLACES=211, PETRI_TRANSITIONS=628} [2023-08-29 02:23:24,620 INFO L281 CegarLoopForPetriNet]: 123 programPoint places, 88 predicate places. [2023-08-29 02:23:24,621 INFO L495 AbstractCegarLoop]: Abstraction has has 211 places, 628 transitions, 5307 flow [2023-08-29 02:23:24,621 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 174.0) internal successors, (1566), 9 states have internal predecessors, (1566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:23:24,622 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:23:24,622 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:23:24,622 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-29 02:23:24,622 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-29 02:23:24,622 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:23:24,622 INFO L85 PathProgramCache]: Analyzing trace with hash -367352326, now seen corresponding path program 1 times [2023-08-29 02:23:24,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:23:24,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857649546] [2023-08-29 02:23:24,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:23:24,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:23:24,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:23:25,650 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-29 02:23:25,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:23:25,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857649546] [2023-08-29 02:23:25,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [857649546] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:23:25,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:23:25,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 02:23:25,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823147407] [2023-08-29 02:23:25,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:23:25,651 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-29 02:23:25,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:23:25,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-29 02:23:25,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-08-29 02:23:26,170 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 402 [2023-08-29 02:23:26,171 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 211 places, 628 transitions, 5307 flow. Second operand has 9 states, 9 states have (on average 174.0) internal successors, (1566), 9 states have internal predecessors, (1566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:23:26,171 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:23:26,171 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 402 [2023-08-29 02:23:26,171 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:23:54,519 INFO L130 PetriNetUnfolder]: 47457/107302 cut-off events. [2023-08-29 02:23:54,519 INFO L131 PetriNetUnfolder]: For 150672/152572 co-relation queries the response was YES. [2023-08-29 02:23:55,217 INFO L83 FinitePrefix]: Finished finitePrefix Result has 347243 conditions, 107302 events. 47457/107302 cut-off events. For 150672/152572 co-relation queries the response was YES. Maximal size of possible extension queue 128. Compared 827911 event pairs, 21775 based on Foata normal form. 22/105462 useless extension candidates. Maximal degree in co-relation 347194. Up to 90415 conditions per place. [2023-08-29 02:23:55,547 INFO L137 encePairwiseOnDemand]: 369/402 looper letters, 561 selfloop transitions, 154 changer transitions 1/760 dead transitions. [2023-08-29 02:23:55,548 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 218 places, 760 transitions, 7379 flow [2023-08-29 02:23:55,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-29 02:23:55,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-29 02:23:55,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1687 transitions. [2023-08-29 02:23:55,552 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5245646766169154 [2023-08-29 02:23:55,553 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1687 transitions. [2023-08-29 02:23:55,553 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1687 transitions. [2023-08-29 02:23:55,554 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:23:55,554 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1687 transitions. [2023-08-29 02:23:55,557 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 210.875) internal successors, (1687), 8 states have internal predecessors, (1687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:23:55,560 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 402.0) internal successors, (3618), 9 states have internal predecessors, (3618), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:23:55,561 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 402.0) internal successors, (3618), 9 states have internal predecessors, (3618), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:23:55,561 INFO L175 Difference]: Start difference. First operand has 211 places, 628 transitions, 5307 flow. Second operand 8 states and 1687 transitions. [2023-08-29 02:23:55,561 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 218 places, 760 transitions, 7379 flow [2023-08-29 02:23:59,291 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 217 places, 760 transitions, 6891 flow, removed 175 selfloop flow, removed 1 redundant places. [2023-08-29 02:23:59,299 INFO L231 Difference]: Finished difference. Result has 219 places, 633 transitions, 5248 flow [2023-08-29 02:23:59,299 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=402, PETRI_DIFFERENCE_MINUEND_FLOW=4853, PETRI_DIFFERENCE_MINUEND_PLACES=210, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=628, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=149, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=475, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=5248, PETRI_PLACES=219, PETRI_TRANSITIONS=633} [2023-08-29 02:23:59,300 INFO L281 CegarLoopForPetriNet]: 123 programPoint places, 96 predicate places. [2023-08-29 02:23:59,300 INFO L495 AbstractCegarLoop]: Abstraction has has 219 places, 633 transitions, 5248 flow [2023-08-29 02:23:59,301 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 174.0) internal successors, (1566), 9 states have internal predecessors, (1566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:23:59,302 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:23:59,302 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:23:59,302 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-29 02:23:59,302 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-29 02:23:59,302 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:23:59,303 INFO L85 PathProgramCache]: Analyzing trace with hash -1605052882, now seen corresponding path program 2 times [2023-08-29 02:23:59,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:23:59,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776613139] [2023-08-29 02:23:59,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:23:59,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:23:59,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:24:00,234 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-29 02:24:00,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:24:00,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776613139] [2023-08-29 02:24:00,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1776613139] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:24:00,235 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:24:00,235 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 02:24:00,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680637578] [2023-08-29 02:24:00,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:24:00,236 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-29 02:24:00,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:24:00,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-29 02:24:00,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2023-08-29 02:24:00,855 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 402 [2023-08-29 02:24:00,856 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 219 places, 633 transitions, 5248 flow. Second operand has 9 states, 9 states have (on average 174.0) internal successors, (1566), 9 states have internal predecessors, (1566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:24:00,856 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:24:00,856 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 402 [2023-08-29 02:24:00,856 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:24:26,964 INFO L130 PetriNetUnfolder]: 48267/109286 cut-off events. [2023-08-29 02:24:26,964 INFO L131 PetriNetUnfolder]: For 130885/132835 co-relation queries the response was YES. [2023-08-29 02:24:27,605 INFO L83 FinitePrefix]: Finished finitePrefix Result has 357276 conditions, 109286 events. 48267/109286 cut-off events. For 130885/132835 co-relation queries the response was YES. Maximal size of possible extension queue 133. Compared 852859 event pairs, 2908 based on Foata normal form. 80/107473 useless extension candidates. Maximal degree in co-relation 357225. Up to 49677 conditions per place. [2023-08-29 02:24:27,898 INFO L137 encePairwiseOnDemand]: 375/402 looper letters, 863 selfloop transitions, 123 changer transitions 2/1032 dead transitions. [2023-08-29 02:24:27,898 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 228 places, 1032 transitions, 9509 flow [2023-08-29 02:24:27,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-29 02:24:27,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-29 02:24:27,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 2136 transitions. [2023-08-29 02:24:27,903 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5313432835820896 [2023-08-29 02:24:27,903 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 2136 transitions. [2023-08-29 02:24:27,903 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 2136 transitions. [2023-08-29 02:24:27,904 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:24:27,904 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 2136 transitions. [2023-08-29 02:24:27,907 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 213.6) internal successors, (2136), 10 states have internal predecessors, (2136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:24:27,911 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 402.0) internal successors, (4422), 11 states have internal predecessors, (4422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:24:27,912 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 402.0) internal successors, (4422), 11 states have internal predecessors, (4422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:24:27,912 INFO L175 Difference]: Start difference. First operand has 219 places, 633 transitions, 5248 flow. Second operand 10 states and 2136 transitions. [2023-08-29 02:24:27,912 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 228 places, 1032 transitions, 9509 flow [2023-08-29 02:24:31,330 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 223 places, 1032 transitions, 9067 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-29 02:24:31,340 INFO L231 Difference]: Finished difference. Result has 229 places, 735 transitions, 6274 flow [2023-08-29 02:24:31,340 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=402, PETRI_DIFFERENCE_MINUEND_FLOW=4979, PETRI_DIFFERENCE_MINUEND_PLACES=214, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=633, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=519, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=6274, PETRI_PLACES=229, PETRI_TRANSITIONS=735} [2023-08-29 02:24:31,341 INFO L281 CegarLoopForPetriNet]: 123 programPoint places, 106 predicate places. [2023-08-29 02:24:31,341 INFO L495 AbstractCegarLoop]: Abstraction has has 229 places, 735 transitions, 6274 flow [2023-08-29 02:24:31,341 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 174.0) internal successors, (1566), 9 states have internal predecessors, (1566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:24:31,341 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:24:31,342 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:24:31,342 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-29 02:24:31,342 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-29 02:24:31,342 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:24:31,342 INFO L85 PathProgramCache]: Analyzing trace with hash 11992814, now seen corresponding path program 3 times [2023-08-29 02:24:31,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:24:31,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741107280] [2023-08-29 02:24:31,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:24:31,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:24:31,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:24:32,274 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-29 02:24:32,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:24:32,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741107280] [2023-08-29 02:24:32,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1741107280] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:24:32,274 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:24:32,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 02:24:32,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830173982] [2023-08-29 02:24:32,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:24:32,275 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-29 02:24:32,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:24:32,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-29 02:24:32,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-08-29 02:24:33,031 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 402 [2023-08-29 02:24:33,032 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 229 places, 735 transitions, 6274 flow. Second operand has 9 states, 9 states have (on average 174.0) internal successors, (1566), 9 states have internal predecessors, (1566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:24:33,032 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:24:33,032 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 402 [2023-08-29 02:24:33,032 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:25:04,479 INFO L130 PetriNetUnfolder]: 48607/109682 cut-off events. [2023-08-29 02:25:04,479 INFO L131 PetriNetUnfolder]: For 180708/182658 co-relation queries the response was YES. [2023-08-29 02:25:05,224 INFO L83 FinitePrefix]: Finished finitePrefix Result has 375299 conditions, 109682 events. 48607/109682 cut-off events. For 180708/182658 co-relation queries the response was YES. Maximal size of possible extension queue 136. Compared 847401 event pairs, 21815 based on Foata normal form. 42/107862 useless extension candidates. Maximal degree in co-relation 375242. Up to 92035 conditions per place. [2023-08-29 02:25:05,550 INFO L137 encePairwiseOnDemand]: 369/402 looper letters, 598 selfloop transitions, 243 changer transitions 1/886 dead transitions. [2023-08-29 02:25:05,550 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 237 places, 886 transitions, 8732 flow [2023-08-29 02:25:05,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-29 02:25:05,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-29 02:25:05,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1874 transitions. [2023-08-29 02:25:05,554 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5179657269209508 [2023-08-29 02:25:05,554 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1874 transitions. [2023-08-29 02:25:05,554 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1874 transitions. [2023-08-29 02:25:05,555 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:25:05,555 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1874 transitions. [2023-08-29 02:25:05,558 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 208.22222222222223) internal successors, (1874), 9 states have internal predecessors, (1874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:25:05,562 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 402.0) internal successors, (4020), 10 states have internal predecessors, (4020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:25:05,563 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 402.0) internal successors, (4020), 10 states have internal predecessors, (4020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:25:05,563 INFO L175 Difference]: Start difference. First operand has 229 places, 735 transitions, 6274 flow. Second operand 9 states and 1874 transitions. [2023-08-29 02:25:05,563 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 237 places, 886 transitions, 8732 flow [2023-08-29 02:25:09,770 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 235 places, 886 transitions, 8710 flow, removed 4 selfloop flow, removed 2 redundant places. [2023-08-29 02:25:09,779 INFO L231 Difference]: Finished difference. Result has 239 places, 748 transitions, 7040 flow [2023-08-29 02:25:09,780 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=402, PETRI_DIFFERENCE_MINUEND_FLOW=6252, PETRI_DIFFERENCE_MINUEND_PLACES=227, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=735, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=230, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=495, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=7040, PETRI_PLACES=239, PETRI_TRANSITIONS=748} [2023-08-29 02:25:09,780 INFO L281 CegarLoopForPetriNet]: 123 programPoint places, 116 predicate places. [2023-08-29 02:25:09,780 INFO L495 AbstractCegarLoop]: Abstraction has has 239 places, 748 transitions, 7040 flow [2023-08-29 02:25:09,780 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 174.0) internal successors, (1566), 9 states have internal predecessors, (1566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:25:09,781 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:25:09,781 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:25:09,781 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-29 02:25:09,781 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-29 02:25:09,781 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:25:09,781 INFO L85 PathProgramCache]: Analyzing trace with hash -800353708, now seen corresponding path program 3 times [2023-08-29 02:25:09,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:25:09,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511012670] [2023-08-29 02:25:09,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:25:09,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:25:09,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:25:10,691 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-29 02:25:10,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:25:10,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511012670] [2023-08-29 02:25:10,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1511012670] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:25:10,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:25:10,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 02:25:10,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445943084] [2023-08-29 02:25:10,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:25:10,692 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-29 02:25:10,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:25:10,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-29 02:25:10,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-08-29 02:25:11,109 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 402 [2023-08-29 02:25:11,110 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 239 places, 748 transitions, 7040 flow. Second operand has 9 states, 9 states have (on average 174.0) internal successors, (1566), 9 states have internal predecessors, (1566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:25:11,110 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:25:11,110 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 402 [2023-08-29 02:25:11,110 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:25:41,929 INFO L130 PetriNetUnfolder]: 47559/107625 cut-off events. [2023-08-29 02:25:41,929 INFO L131 PetriNetUnfolder]: For 224048/225798 co-relation queries the response was YES. [2023-08-29 02:25:42,679 INFO L83 FinitePrefix]: Finished finitePrefix Result has 383656 conditions, 107625 events. 47559/107625 cut-off events. For 224048/225798 co-relation queries the response was YES. Maximal size of possible extension queue 137. Compared 832556 event pairs, 16377 based on Foata normal form. 160/105504 useless extension candidates. Maximal degree in co-relation 383595. Up to 82853 conditions per place. [2023-08-29 02:25:43,013 INFO L137 encePairwiseOnDemand]: 356/402 looper letters, 587 selfloop transitions, 335 changer transitions 0/962 dead transitions. [2023-08-29 02:25:43,014 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 247 places, 962 transitions, 10163 flow [2023-08-29 02:25:43,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-29 02:25:43,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-29 02:25:43,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1973 transitions. [2023-08-29 02:25:43,018 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5453289110005528 [2023-08-29 02:25:43,018 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1973 transitions. [2023-08-29 02:25:43,018 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1973 transitions. [2023-08-29 02:25:43,019 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:25:43,019 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1973 transitions. [2023-08-29 02:25:43,022 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 219.22222222222223) internal successors, (1973), 9 states have internal predecessors, (1973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:25:43,026 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 402.0) internal successors, (4020), 10 states have internal predecessors, (4020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:25:43,026 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 402.0) internal successors, (4020), 10 states have internal predecessors, (4020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:25:43,026 INFO L175 Difference]: Start difference. First operand has 239 places, 748 transitions, 7040 flow. Second operand 9 states and 1973 transitions. [2023-08-29 02:25:43,026 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 247 places, 962 transitions, 10163 flow [2023-08-29 02:25:48,487 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 243 places, 962 transitions, 9760 flow, removed 16 selfloop flow, removed 4 redundant places. [2023-08-29 02:25:48,496 INFO L231 Difference]: Finished difference. Result has 246 places, 757 transitions, 7508 flow [2023-08-29 02:25:48,497 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=402, PETRI_DIFFERENCE_MINUEND_FLOW=6656, PETRI_DIFFERENCE_MINUEND_PLACES=235, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=748, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=326, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=414, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=7508, PETRI_PLACES=246, PETRI_TRANSITIONS=757} [2023-08-29 02:25:48,497 INFO L281 CegarLoopForPetriNet]: 123 programPoint places, 123 predicate places. [2023-08-29 02:25:48,497 INFO L495 AbstractCegarLoop]: Abstraction has has 246 places, 757 transitions, 7508 flow [2023-08-29 02:25:48,498 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 174.0) internal successors, (1566), 9 states have internal predecessors, (1566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:25:48,498 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:25:48,498 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:25:48,498 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-29 02:25:48,499 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-29 02:25:48,499 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:25:48,499 INFO L85 PathProgramCache]: Analyzing trace with hash -1141809094, now seen corresponding path program 4 times [2023-08-29 02:25:48,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:25:48,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284627520] [2023-08-29 02:25:48,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:25:48,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:25:48,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:25:49,353 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-29 02:25:49,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:25:49,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284627520] [2023-08-29 02:25:49,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1284627520] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:25:49,354 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:25:49,354 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 02:25:49,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886447489] [2023-08-29 02:25:49,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:25:49,354 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-29 02:25:49,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:25:49,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-29 02:25:49,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-08-29 02:25:50,070 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 402 [2023-08-29 02:25:50,071 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 246 places, 757 transitions, 7508 flow. Second operand has 9 states, 9 states have (on average 174.0) internal successors, (1566), 9 states have internal predecessors, (1566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:25:50,071 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:25:50,071 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 402 [2023-08-29 02:25:50,071 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand