./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/goblint-regression/09-regions_26-alloc_region_rc.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/goblint-regression/09-regions_26-alloc_region_rc.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a98c974c803b808e0d7e2f56f44a4386aecc7f9a41003cc6d1be849c6b132112 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-31 20:28:03,253 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-31 20:28:03,255 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-31 20:28:03,284 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-31 20:28:03,286 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-31 20:28:03,288 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-31 20:28:03,289 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-31 20:28:03,291 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-31 20:28:03,292 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-31 20:28:03,296 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-31 20:28:03,296 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-31 20:28:03,298 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-31 20:28:03,298 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-31 20:28:03,300 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-31 20:28:03,301 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-31 20:28:03,304 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-31 20:28:03,305 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-31 20:28:03,306 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-31 20:28:03,307 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-31 20:28:03,311 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-31 20:28:03,315 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-31 20:28:03,316 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-31 20:28:03,316 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-31 20:28:03,317 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-31 20:28:03,322 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-31 20:28:03,322 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-31 20:28:03,322 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-31 20:28:03,323 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-31 20:28:03,324 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-31 20:28:03,324 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-31 20:28:03,325 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-31 20:28:03,329 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-31 20:28:03,330 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-31 20:28:03,331 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-31 20:28:03,331 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-31 20:28:03,331 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-31 20:28:03,333 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-31 20:28:03,333 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-31 20:28:03,333 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-31 20:28:03,334 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-31 20:28:03,334 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-31 20:28:03,335 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-31 20:28:03,359 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-31 20:28:03,360 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-31 20:28:03,360 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-31 20:28:03,361 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-31 20:28:03,361 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-31 20:28:03,361 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-31 20:28:03,362 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-31 20:28:03,362 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-31 20:28:03,362 INFO L138 SettingsManager]: * Use SBE=true [2023-08-31 20:28:03,362 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-31 20:28:03,363 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-31 20:28:03,363 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-31 20:28:03,363 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-31 20:28:03,363 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-31 20:28:03,363 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-31 20:28:03,363 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-31 20:28:03,363 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-31 20:28:03,364 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-31 20:28:03,364 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-31 20:28:03,364 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-31 20:28:03,364 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-31 20:28:03,364 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-31 20:28:03,364 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-31 20:28:03,365 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-31 20:28:03,365 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-31 20:28:03,365 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-31 20:28:03,365 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 20:28:03,365 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-31 20:28:03,365 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-31 20:28:03,365 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-31 20:28:03,366 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-31 20:28:03,366 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-31 20:28:03,366 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-31 20:28:03,366 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-31 20:28:03,366 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-31 20:28:03,366 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-31 20:28:03,366 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-31 20:28:03,367 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a98c974c803b808e0d7e2f56f44a4386aecc7f9a41003cc6d1be849c6b132112 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-08-31 20:28:03,592 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-31 20:28:03,606 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-31 20:28:03,608 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-31 20:28:03,609 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-31 20:28:03,610 INFO L275 PluginConnector]: CDTParser initialized [2023-08-31 20:28:03,611 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/09-regions_26-alloc_region_rc.i [2023-08-31 20:28:04,491 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-31 20:28:04,641 INFO L351 CDTParser]: Found 1 translation units. [2023-08-31 20:28:04,641 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/09-regions_26-alloc_region_rc.i [2023-08-31 20:28:04,651 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c4fcf62b/3925f1910ce04d3898a7560a5e5d7be8/FLAG667e3ebc8 [2023-08-31 20:28:04,661 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c4fcf62b/3925f1910ce04d3898a7560a5e5d7be8 [2023-08-31 20:28:04,663 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-31 20:28:04,664 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-31 20:28:04,665 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-31 20:28:04,665 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-31 20:28:04,670 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-31 20:28:04,670 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 08:28:04" (1/1) ... [2023-08-31 20:28:04,671 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@702a88ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:28:04, skipping insertion in model container [2023-08-31 20:28:04,671 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 08:28:04" (1/1) ... [2023-08-31 20:28:04,675 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-31 20:28:04,742 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-31 20:28:05,194 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 20:28:05,204 INFO L203 MainTranslator]: Completed pre-run [2023-08-31 20:28:05,243 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 20:28:05,312 INFO L208 MainTranslator]: Completed translation [2023-08-31 20:28:05,312 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:28:05 WrapperNode [2023-08-31 20:28:05,313 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-31 20:28:05,313 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-31 20:28:05,314 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-31 20:28:05,314 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-31 20:28:05,318 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:28:05" (1/1) ... [2023-08-31 20:28:05,343 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:28:05" (1/1) ... [2023-08-31 20:28:05,379 INFO L138 Inliner]: procedures = 370, calls = 46, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 236 [2023-08-31 20:28:05,379 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-31 20:28:05,380 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-31 20:28:05,380 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-31 20:28:05,381 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-31 20:28:05,386 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:28:05" (1/1) ... [2023-08-31 20:28:05,386 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:28:05" (1/1) ... [2023-08-31 20:28:05,393 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:28:05" (1/1) ... [2023-08-31 20:28:05,393 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:28:05" (1/1) ... [2023-08-31 20:28:05,405 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:28:05" (1/1) ... [2023-08-31 20:28:05,407 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:28:05" (1/1) ... [2023-08-31 20:28:05,409 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:28:05" (1/1) ... [2023-08-31 20:28:05,410 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:28:05" (1/1) ... [2023-08-31 20:28:05,412 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-31 20:28:05,413 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-31 20:28:05,413 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-31 20:28:05,413 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-31 20:28:05,413 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:28:05" (1/1) ... [2023-08-31 20:28:05,417 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 20:28:05,437 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 20:28:05,448 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-31 20:28:05,464 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-31 20:28:05,479 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-31 20:28:05,479 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-08-31 20:28:05,479 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-31 20:28:05,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-08-31 20:28:05,479 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-31 20:28:05,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-31 20:28:05,481 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-31 20:28:05,481 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-31 20:28:05,481 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-31 20:28:05,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-08-31 20:28:05,481 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-31 20:28:05,481 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-31 20:28:05,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-31 20:28:05,481 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-31 20:28:05,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-31 20:28:05,482 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-31 20:28:05,580 INFO L236 CfgBuilder]: Building ICFG [2023-08-31 20:28:05,581 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-31 20:28:05,987 INFO L277 CfgBuilder]: Performing block encoding [2023-08-31 20:28:05,992 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-31 20:28:05,993 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-08-31 20:28:05,994 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 08:28:05 BoogieIcfgContainer [2023-08-31 20:28:05,994 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-31 20:28:05,995 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-31 20:28:05,995 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-31 20:28:05,997 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-31 20:28:05,997 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.08 08:28:04" (1/3) ... [2023-08-31 20:28:05,998 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36a6237d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 08:28:05, skipping insertion in model container [2023-08-31 20:28:05,998 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:28:05" (2/3) ... [2023-08-31 20:28:05,998 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36a6237d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 08:28:05, skipping insertion in model container [2023-08-31 20:28:05,998 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 08:28:05" (3/3) ... [2023-08-31 20:28:05,999 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_26-alloc_region_rc.i [2023-08-31 20:28:06,003 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-31 20:28:06,009 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-31 20:28:06,009 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 20 error locations. [2023-08-31 20:28:06,009 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-31 20:28:06,088 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-31 20:28:06,125 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 264 places, 262 transitions, 529 flow [2023-08-31 20:28:06,215 INFO L130 PetriNetUnfolder]: 2/261 cut-off events. [2023-08-31 20:28:06,216 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 20:28:06,220 INFO L83 FinitePrefix]: Finished finitePrefix Result has 265 conditions, 261 events. 2/261 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 247 event pairs, 0 based on Foata normal form. 0/239 useless extension candidates. Maximal degree in co-relation 192. Up to 2 conditions per place. [2023-08-31 20:28:06,220 INFO L82 GeneralOperation]: Start removeDead. Operand has 264 places, 262 transitions, 529 flow [2023-08-31 20:28:06,228 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 263 places, 261 transitions, 525 flow [2023-08-31 20:28:06,230 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-31 20:28:06,240 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 263 places, 261 transitions, 525 flow [2023-08-31 20:28:06,242 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 263 places, 261 transitions, 525 flow [2023-08-31 20:28:06,243 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 263 places, 261 transitions, 525 flow [2023-08-31 20:28:06,303 INFO L130 PetriNetUnfolder]: 2/261 cut-off events. [2023-08-31 20:28:06,303 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 20:28:06,305 INFO L83 FinitePrefix]: Finished finitePrefix Result has 265 conditions, 261 events. 2/261 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 247 event pairs, 0 based on Foata normal form. 0/239 useless extension candidates. Maximal degree in co-relation 192. Up to 2 conditions per place. [2023-08-31 20:28:06,311 INFO L119 LiptonReduction]: Number of co-enabled transitions 18144 [2023-08-31 20:28:20,270 WARN L222 SmtUtils]: Spent 6.93s on a formula simplification. DAG size of input: 125 DAG size of output: 120 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-31 20:28:28,590 WARN L222 SmtUtils]: Spent 6.21s on a formula simplification. DAG size of input: 125 DAG size of output: 120 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-31 20:28:40,145 WARN L222 SmtUtils]: Spent 9.16s on a formula simplification that was a NOOP. DAG size: 182 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-31 20:28:46,387 WARN L222 SmtUtils]: Spent 6.24s on a formula simplification that was a NOOP. DAG size: 164 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-31 20:28:55,892 WARN L222 SmtUtils]: Spent 9.50s on a formula simplification that was a NOOP. DAG size: 182 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-31 20:29:01,960 WARN L222 SmtUtils]: Spent 6.07s on a formula simplification that was a NOOP. DAG size: 164 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-31 20:29:07,032 WARN L222 SmtUtils]: Spent 5.05s on a formula simplification. DAG size of input: 216 DAG size of output: 214 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-31 20:29:16,224 INFO L134 LiptonReduction]: Checked pairs total: 144406 [2023-08-31 20:29:16,224 INFO L136 LiptonReduction]: Total number of compositions: 148 [2023-08-31 20:29:16,232 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-31 20:29:16,235 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;@17ef67b7, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-31 20:29:16,235 INFO L358 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2023-08-31 20:29:16,236 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-31 20:29:16,236 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 20:29:16,236 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:29:16,237 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-31 20:29:16,237 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-31 20:29:16,240 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:29:16,240 INFO L85 PathProgramCache]: Analyzing trace with hash 796, now seen corresponding path program 1 times [2023-08-31 20:29:16,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:29:16,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465577542] [2023-08-31 20:29:16,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:29:16,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:29:16,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:29:16,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:29:16,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:29:16,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465577542] [2023-08-31 20:29:16,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [465577542] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:29:16,324 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:29:16,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-31 20:29:16,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516092699] [2023-08-31 20:29:16,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:29:16,330 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-31 20:29:16,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:29:16,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-31 20:29:16,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-31 20:29:16,356 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 260 out of 410 [2023-08-31 20:29:16,360 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 132 transitions, 267 flow. Second operand has 2 states, 2 states have (on average 260.5) internal successors, (521), 2 states have internal predecessors, (521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:29:16,360 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:29:16,360 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 260 of 410 [2023-08-31 20:29:16,361 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:29:16,618 INFO L130 PetriNetUnfolder]: 379/1728 cut-off events. [2023-08-31 20:29:16,618 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 20:29:16,620 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2512 conditions, 1728 events. 379/1728 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 11594 event pairs, 360 based on Foata normal form. 19/1664 useless extension candidates. Maximal degree in co-relation 2503. Up to 780 conditions per place. [2023-08-31 20:29:16,624 INFO L137 encePairwiseOnDemand]: 405/410 looper letters, 41 selfloop transitions, 0 changer transitions 0/127 dead transitions. [2023-08-31 20:29:16,624 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 127 transitions, 339 flow [2023-08-31 20:29:16,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-31 20:29:16,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-31 20:29:16,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 566 transitions. [2023-08-31 20:29:16,634 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6902439024390243 [2023-08-31 20:29:16,634 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 566 transitions. [2023-08-31 20:29:16,634 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 566 transitions. [2023-08-31 20:29:16,636 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:29:16,637 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 566 transitions. [2023-08-31 20:29:16,640 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 283.0) internal successors, (566), 2 states have internal predecessors, (566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:29:16,643 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 410.0) internal successors, (1230), 3 states have internal predecessors, (1230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:29:16,643 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 410.0) internal successors, (1230), 3 states have internal predecessors, (1230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:29:16,645 INFO L175 Difference]: Start difference. First operand has 134 places, 132 transitions, 267 flow. Second operand 2 states and 566 transitions. [2023-08-31 20:29:16,645 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 127 transitions, 339 flow [2023-08-31 20:29:16,647 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 127 transitions, 338 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-31 20:29:16,649 INFO L231 Difference]: Finished difference. Result has 130 places, 127 transitions, 256 flow [2023-08-31 20:29:16,650 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=256, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=256, PETRI_PLACES=130, PETRI_TRANSITIONS=127} [2023-08-31 20:29:16,652 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, -4 predicate places. [2023-08-31 20:29:16,652 INFO L495 AbstractCegarLoop]: Abstraction has has 130 places, 127 transitions, 256 flow [2023-08-31 20:29:16,652 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 260.5) internal successors, (521), 2 states have internal predecessors, (521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:29:16,653 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:29:16,653 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:29:16,653 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-31 20:29:16,653 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-31 20:29:16,654 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:29:16,654 INFO L85 PathProgramCache]: Analyzing trace with hash 1766698446, now seen corresponding path program 1 times [2023-08-31 20:29:16,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:29:16,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132116369] [2023-08-31 20:29:16,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:29:16,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:29:16,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:29:17,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:29:17,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:29:17,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132116369] [2023-08-31 20:29:17,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [132116369] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:29:17,135 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:29:17,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 20:29:17,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776813461] [2023-08-31 20:29:17,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:29:17,136 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 20:29:17,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:29:17,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 20:29:17,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 20:29:17,438 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 178 out of 410 [2023-08-31 20:29:17,440 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 127 transitions, 256 flow. Second operand has 6 states, 6 states have (on average 179.5) internal successors, (1077), 6 states have internal predecessors, (1077), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:29:17,440 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:29:17,440 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 178 of 410 [2023-08-31 20:29:17,440 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:29:18,198 INFO L130 PetriNetUnfolder]: 2362/5504 cut-off events. [2023-08-31 20:29:18,198 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 20:29:18,212 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10287 conditions, 5504 events. 2362/5504 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 33673 event pairs, 1870 based on Foata normal form. 0/5334 useless extension candidates. Maximal degree in co-relation 10284. Up to 4491 conditions per place. [2023-08-31 20:29:18,251 INFO L137 encePairwiseOnDemand]: 368/410 looper letters, 167 selfloop transitions, 149 changer transitions 0/347 dead transitions. [2023-08-31 20:29:18,253 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 347 transitions, 1328 flow [2023-08-31 20:29:18,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 20:29:18,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 20:29:18,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1385 transitions. [2023-08-31 20:29:18,257 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5630081300813008 [2023-08-31 20:29:18,261 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1385 transitions. [2023-08-31 20:29:18,261 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1385 transitions. [2023-08-31 20:29:18,261 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:29:18,261 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1385 transitions. [2023-08-31 20:29:18,264 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 230.83333333333334) internal successors, (1385), 6 states have internal predecessors, (1385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:29:18,281 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 410.0) internal successors, (2870), 7 states have internal predecessors, (2870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:29:18,282 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 410.0) internal successors, (2870), 7 states have internal predecessors, (2870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:29:18,282 INFO L175 Difference]: Start difference. First operand has 130 places, 127 transitions, 256 flow. Second operand 6 states and 1385 transitions. [2023-08-31 20:29:18,282 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 347 transitions, 1328 flow [2023-08-31 20:29:18,285 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 347 transitions, 1328 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 20:29:18,289 INFO L231 Difference]: Finished difference. Result has 139 places, 275 transitions, 1084 flow [2023-08-31 20:29:18,289 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=256, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1084, PETRI_PLACES=139, PETRI_TRANSITIONS=275} [2023-08-31 20:29:18,289 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 5 predicate places. [2023-08-31 20:29:18,289 INFO L495 AbstractCegarLoop]: Abstraction has has 139 places, 275 transitions, 1084 flow [2023-08-31 20:29:18,290 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 179.5) internal successors, (1077), 6 states have internal predecessors, (1077), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:29:18,290 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:29:18,298 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:29:18,298 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-31 20:29:18,298 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-31 20:29:18,301 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:29:18,301 INFO L85 PathProgramCache]: Analyzing trace with hash 917157654, now seen corresponding path program 1 times [2023-08-31 20:29:18,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:29:18,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609115930] [2023-08-31 20:29:18,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:29:18,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:29:18,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:29:18,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:29:18,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:29:18,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609115930] [2023-08-31 20:29:18,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1609115930] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:29:18,626 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:29:18,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 20:29:18,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695042078] [2023-08-31 20:29:18,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:29:18,627 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 20:29:18,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:29:18,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 20:29:18,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 20:29:18,962 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 176 out of 410 [2023-08-31 20:29:18,963 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 275 transitions, 1084 flow. Second operand has 6 states, 6 states have (on average 177.5) internal successors, (1065), 6 states have internal predecessors, (1065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:29:18,963 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:29:18,963 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 176 of 410 [2023-08-31 20:29:18,963 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:29:19,699 INFO L130 PetriNetUnfolder]: 2616/6060 cut-off events. [2023-08-31 20:29:19,699 INFO L131 PetriNetUnfolder]: For 1017/1043 co-relation queries the response was YES. [2023-08-31 20:29:19,706 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13967 conditions, 6060 events. 2616/6060 cut-off events. For 1017/1043 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 37480 event pairs, 1877 based on Foata normal form. 0/5894 useless extension candidates. Maximal degree in co-relation 13959. Up to 5026 conditions per place. [2023-08-31 20:29:19,723 INFO L137 encePairwiseOnDemand]: 376/410 looper letters, 288 selfloop transitions, 121 changer transitions 0/451 dead transitions. [2023-08-31 20:29:19,723 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 451 transitions, 2304 flow [2023-08-31 20:29:19,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 20:29:19,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 20:29:19,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1330 transitions. [2023-08-31 20:29:19,726 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.540650406504065 [2023-08-31 20:29:19,727 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1330 transitions. [2023-08-31 20:29:19,727 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1330 transitions. [2023-08-31 20:29:19,727 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:29:19,727 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1330 transitions. [2023-08-31 20:29:19,730 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 221.66666666666666) internal successors, (1330), 6 states have internal predecessors, (1330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:29:19,733 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 410.0) internal successors, (2870), 7 states have internal predecessors, (2870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:29:19,734 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 410.0) internal successors, (2870), 7 states have internal predecessors, (2870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:29:19,734 INFO L175 Difference]: Start difference. First operand has 139 places, 275 transitions, 1084 flow. Second operand 6 states and 1330 transitions. [2023-08-31 20:29:19,734 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 451 transitions, 2304 flow [2023-08-31 20:29:19,743 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 451 transitions, 2304 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 20:29:19,751 INFO L231 Difference]: Finished difference. Result has 148 places, 391 transitions, 1790 flow [2023-08-31 20:29:19,751 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=1084, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=275, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=238, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1790, PETRI_PLACES=148, PETRI_TRANSITIONS=391} [2023-08-31 20:29:19,752 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 14 predicate places. [2023-08-31 20:29:19,752 INFO L495 AbstractCegarLoop]: Abstraction has has 148 places, 391 transitions, 1790 flow [2023-08-31 20:29:19,753 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 177.5) internal successors, (1065), 6 states have internal predecessors, (1065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:29:19,753 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:29:19,753 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:29:19,754 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-31 20:29:19,754 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-31 20:29:19,754 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:29:19,755 INFO L85 PathProgramCache]: Analyzing trace with hash 1255662643, now seen corresponding path program 1 times [2023-08-31 20:29:19,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:29:19,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885588969] [2023-08-31 20:29:19,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:29:19,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:29:19,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:29:20,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:29:20,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:29:20,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885588969] [2023-08-31 20:29:20,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1885588969] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:29:20,083 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:29:20,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-31 20:29:20,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372953623] [2023-08-31 20:29:20,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:29:20,084 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-31 20:29:20,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:29:20,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-31 20:29:20,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-08-31 20:29:21,039 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 410 [2023-08-31 20:29:21,041 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 391 transitions, 1790 flow. Second operand has 11 states, 11 states have (on average 168.0909090909091) internal successors, (1849), 11 states have internal predecessors, (1849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:29:21,041 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:29:21,041 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 410 [2023-08-31 20:29:21,041 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:29:23,792 INFO L130 PetriNetUnfolder]: 8244/19274 cut-off events. [2023-08-31 20:29:23,792 INFO L131 PetriNetUnfolder]: For 8418/8531 co-relation queries the response was YES. [2023-08-31 20:29:23,821 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52691 conditions, 19274 events. 8244/19274 cut-off events. For 8418/8531 co-relation queries the response was YES. Maximal size of possible extension queue 238. Compared 162202 event pairs, 1133 based on Foata normal form. 20/18712 useless extension candidates. Maximal degree in co-relation 52678. Up to 6023 conditions per place. [2023-08-31 20:29:23,879 INFO L137 encePairwiseOnDemand]: 370/410 looper letters, 1371 selfloop transitions, 168 changer transitions 4/1590 dead transitions. [2023-08-31 20:29:23,879 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 167 places, 1590 transitions, 10389 flow [2023-08-31 20:29:23,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-08-31 20:29:23,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2023-08-31 20:29:23,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 4061 transitions. [2023-08-31 20:29:23,886 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4952439024390244 [2023-08-31 20:29:23,886 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 4061 transitions. [2023-08-31 20:29:23,886 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 4061 transitions. [2023-08-31 20:29:23,888 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:29:23,888 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 4061 transitions. [2023-08-31 20:29:23,895 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 203.05) internal successors, (4061), 20 states have internal predecessors, (4061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:29:23,902 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 410.0) internal successors, (8610), 21 states have internal predecessors, (8610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:29:23,903 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 410.0) internal successors, (8610), 21 states have internal predecessors, (8610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:29:23,904 INFO L175 Difference]: Start difference. First operand has 148 places, 391 transitions, 1790 flow. Second operand 20 states and 4061 transitions. [2023-08-31 20:29:23,904 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 167 places, 1590 transitions, 10389 flow [2023-08-31 20:29:23,950 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 167 places, 1590 transitions, 10215 flow, removed 87 selfloop flow, removed 0 redundant places. [2023-08-31 20:29:23,962 INFO L231 Difference]: Finished difference. Result has 185 places, 559 transitions, 3560 flow [2023-08-31 20:29:23,962 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=1760, PETRI_DIFFERENCE_MINUEND_PLACES=148, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=391, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=247, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=3560, PETRI_PLACES=185, PETRI_TRANSITIONS=559} [2023-08-31 20:29:23,963 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 51 predicate places. [2023-08-31 20:29:23,964 INFO L495 AbstractCegarLoop]: Abstraction has has 185 places, 559 transitions, 3560 flow [2023-08-31 20:29:23,964 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 168.0909090909091) internal successors, (1849), 11 states have internal predecessors, (1849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:29:23,964 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:29:23,964 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:29:23,965 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-31 20:29:23,965 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-31 20:29:23,965 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:29:23,965 INFO L85 PathProgramCache]: Analyzing trace with hash -920409819, now seen corresponding path program 2 times [2023-08-31 20:29:23,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:29:23,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771517432] [2023-08-31 20:29:23,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:29:23,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:29:23,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:29:24,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:29:24,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:29:24,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771517432] [2023-08-31 20:29:24,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1771517432] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:29:24,322 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:29:24,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-31 20:29:24,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379631920] [2023-08-31 20:29:24,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:29:24,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-31 20:29:24,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:29:24,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-31 20:29:24,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-08-31 20:29:25,310 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 410 [2023-08-31 20:29:25,312 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 185 places, 559 transitions, 3560 flow. Second operand has 11 states, 11 states have (on average 168.0909090909091) internal successors, (1849), 11 states have internal predecessors, (1849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:29:25,312 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:29:25,312 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 410 [2023-08-31 20:29:25,312 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:29:29,350 INFO L130 PetriNetUnfolder]: 10629/24755 cut-off events. [2023-08-31 20:29:29,350 INFO L131 PetriNetUnfolder]: For 22771/22959 co-relation queries the response was YES. [2023-08-31 20:29:29,415 INFO L83 FinitePrefix]: Finished finitePrefix Result has 73640 conditions, 24755 events. 10629/24755 cut-off events. For 22771/22959 co-relation queries the response was YES. Maximal size of possible extension queue 303. Compared 217408 event pairs, 1438 based on Foata normal form. 24/24088 useless extension candidates. Maximal degree in co-relation 73608. Up to 12755 conditions per place. [2023-08-31 20:29:29,480 INFO L137 encePairwiseOnDemand]: 368/410 looper letters, 1000 selfloop transitions, 206 changer transitions 4/1257 dead transitions. [2023-08-31 20:29:29,481 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 207 places, 1257 transitions, 9473 flow [2023-08-31 20:29:29,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-08-31 20:29:29,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2023-08-31 20:29:29,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 4473 transitions. [2023-08-31 20:29:29,488 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4743372216330859 [2023-08-31 20:29:29,488 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 4473 transitions. [2023-08-31 20:29:29,488 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 4473 transitions. [2023-08-31 20:29:29,490 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:29:29,490 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 4473 transitions. [2023-08-31 20:29:29,496 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 194.47826086956522) internal successors, (4473), 23 states have internal predecessors, (4473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:29:29,505 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 410.0) internal successors, (9840), 24 states have internal predecessors, (9840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:29:29,506 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 410.0) internal successors, (9840), 24 states have internal predecessors, (9840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:29:29,507 INFO L175 Difference]: Start difference. First operand has 185 places, 559 transitions, 3560 flow. Second operand 23 states and 4473 transitions. [2023-08-31 20:29:29,507 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 207 places, 1257 transitions, 9473 flow [2023-08-31 20:29:29,632 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 207 places, 1257 transitions, 9473 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 20:29:29,641 INFO L231 Difference]: Finished difference. Result has 225 places, 749 transitions, 6039 flow [2023-08-31 20:29:29,642 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=3560, PETRI_DIFFERENCE_MINUEND_PLACES=185, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=559, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=396, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=6039, PETRI_PLACES=225, PETRI_TRANSITIONS=749} [2023-08-31 20:29:29,642 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 91 predicate places. [2023-08-31 20:29:29,642 INFO L495 AbstractCegarLoop]: Abstraction has has 225 places, 749 transitions, 6039 flow [2023-08-31 20:29:29,643 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 168.0909090909091) internal successors, (1849), 11 states have internal predecessors, (1849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:29:29,643 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:29:29,643 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:29:29,643 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-31 20:29:29,644 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-31 20:29:29,644 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:29:29,644 INFO L85 PathProgramCache]: Analyzing trace with hash -1530874218, now seen corresponding path program 1 times [2023-08-31 20:29:29,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:29:29,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099091722] [2023-08-31 20:29:29,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:29:29,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:29:29,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:29:29,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:29:29,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:29:29,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099091722] [2023-08-31 20:29:29,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2099091722] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:29:29,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:29:29,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-31 20:29:29,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287815627] [2023-08-31 20:29:29,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:29:29,949 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-31 20:29:29,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:29:29,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-31 20:29:29,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-08-31 20:29:30,761 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 410 [2023-08-31 20:29:30,763 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 225 places, 749 transitions, 6039 flow. Second operand has 11 states, 11 states have (on average 168.0909090909091) internal successors, (1849), 11 states have internal predecessors, (1849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:29:30,763 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:29:30,763 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 410 [2023-08-31 20:29:30,763 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:29:35,535 INFO L130 PetriNetUnfolder]: 10910/25337 cut-off events. [2023-08-31 20:29:35,535 INFO L131 PetriNetUnfolder]: For 42020/42385 co-relation queries the response was YES. [2023-08-31 20:29:35,625 INFO L83 FinitePrefix]: Finished finitePrefix Result has 80514 conditions, 25337 events. 10910/25337 cut-off events. For 42020/42385 co-relation queries the response was YES. Maximal size of possible extension queue 314. Compared 219124 event pairs, 5904 based on Foata normal form. 39/24653 useless extension candidates. Maximal degree in co-relation 80463. Up to 15086 conditions per place. [2023-08-31 20:29:35,694 INFO L137 encePairwiseOnDemand]: 370/410 looper letters, 693 selfloop transitions, 196 changer transitions 2/933 dead transitions. [2023-08-31 20:29:35,694 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 234 places, 933 transitions, 8766 flow [2023-08-31 20:29:35,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-31 20:29:35,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-31 20:29:35,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 2047 transitions. [2023-08-31 20:29:35,699 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49926829268292683 [2023-08-31 20:29:35,699 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 2047 transitions. [2023-08-31 20:29:35,699 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 2047 transitions. [2023-08-31 20:29:35,700 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:29:35,700 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 2047 transitions. [2023-08-31 20:29:35,703 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 204.7) internal successors, (2047), 10 states have internal predecessors, (2047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:29:35,707 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 410.0) internal successors, (4510), 11 states have internal predecessors, (4510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:29:35,707 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 410.0) internal successors, (4510), 11 states have internal predecessors, (4510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:29:35,708 INFO L175 Difference]: Start difference. First operand has 225 places, 749 transitions, 6039 flow. Second operand 10 states and 2047 transitions. [2023-08-31 20:29:35,708 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 234 places, 933 transitions, 8766 flow [2023-08-31 20:29:35,987 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 234 places, 933 transitions, 8318 flow, removed 224 selfloop flow, removed 0 redundant places. [2023-08-31 20:29:35,995 INFO L231 Difference]: Finished difference. Result has 237 places, 756 transitions, 6121 flow [2023-08-31 20:29:35,996 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=5625, PETRI_DIFFERENCE_MINUEND_PLACES=225, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=749, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=189, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=555, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=6121, PETRI_PLACES=237, PETRI_TRANSITIONS=756} [2023-08-31 20:29:35,996 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 103 predicate places. [2023-08-31 20:29:35,996 INFO L495 AbstractCegarLoop]: Abstraction has has 237 places, 756 transitions, 6121 flow [2023-08-31 20:29:35,997 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 168.0909090909091) internal successors, (1849), 11 states have internal predecessors, (1849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:29:35,997 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:29:35,997 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:29:35,997 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-31 20:29:35,997 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-31 20:29:35,998 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:29:35,998 INFO L85 PathProgramCache]: Analyzing trace with hash 471163734, now seen corresponding path program 2 times [2023-08-31 20:29:35,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:29:35,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054241646] [2023-08-31 20:29:35,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:29:35,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:29:36,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:29:36,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:29:36,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:29:36,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054241646] [2023-08-31 20:29:36,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054241646] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:29:36,271 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:29:36,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-31 20:29:36,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420186133] [2023-08-31 20:29:36,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:29:36,272 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-31 20:29:36,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:29:36,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-31 20:29:36,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-08-31 20:29:37,189 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 410 [2023-08-31 20:29:37,191 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 237 places, 756 transitions, 6121 flow. Second operand has 11 states, 11 states have (on average 168.0909090909091) internal successors, (1849), 11 states have internal predecessors, (1849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:29:37,191 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:29:37,191 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 410 [2023-08-31 20:29:37,191 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:29:42,709 INFO L130 PetriNetUnfolder]: 11745/27298 cut-off events. [2023-08-31 20:29:42,709 INFO L131 PetriNetUnfolder]: For 47295/47756 co-relation queries the response was YES. [2023-08-31 20:29:42,832 INFO L83 FinitePrefix]: Finished finitePrefix Result has 88275 conditions, 27298 events. 11745/27298 cut-off events. For 47295/47756 co-relation queries the response was YES. Maximal size of possible extension queue 328. Compared 238390 event pairs, 5744 based on Foata normal form. 19/26572 useless extension candidates. Maximal degree in co-relation 88220. Up to 17887 conditions per place. [2023-08-31 20:29:42,910 INFO L137 encePairwiseOnDemand]: 378/410 looper letters, 1291 selfloop transitions, 145 changer transitions 4/1482 dead transitions. [2023-08-31 20:29:42,910 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 248 places, 1482 transitions, 13482 flow [2023-08-31 20:29:42,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-31 20:29:42,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-31 20:29:42,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 2629 transitions. [2023-08-31 20:29:42,915 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5343495934959349 [2023-08-31 20:29:42,915 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 2629 transitions. [2023-08-31 20:29:42,916 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 2629 transitions. [2023-08-31 20:29:42,917 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:29:42,917 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 2629 transitions. [2023-08-31 20:29:42,920 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 219.08333333333334) internal successors, (2629), 12 states have internal predecessors, (2629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:29:42,925 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 410.0) internal successors, (5330), 13 states have internal predecessors, (5330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:29:42,926 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 410.0) internal successors, (5330), 13 states have internal predecessors, (5330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:29:42,926 INFO L175 Difference]: Start difference. First operand has 237 places, 756 transitions, 6121 flow. Second operand 12 states and 2629 transitions. [2023-08-31 20:29:42,926 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 248 places, 1482 transitions, 13482 flow [2023-08-31 20:29:43,381 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 242 places, 1482 transitions, 12896 flow, removed 1 selfloop flow, removed 6 redundant places. [2023-08-31 20:29:43,393 INFO L231 Difference]: Finished difference. Result has 249 places, 875 transitions, 7242 flow [2023-08-31 20:29:43,393 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=5773, PETRI_DIFFERENCE_MINUEND_PLACES=231, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=756, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=616, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=7242, PETRI_PLACES=249, PETRI_TRANSITIONS=875} [2023-08-31 20:29:43,394 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 115 predicate places. [2023-08-31 20:29:43,394 INFO L495 AbstractCegarLoop]: Abstraction has has 249 places, 875 transitions, 7242 flow [2023-08-31 20:29:43,394 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 168.0909090909091) internal successors, (1849), 11 states have internal predecessors, (1849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:29:43,395 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:29:43,395 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:29:43,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-31 20:29:43,395 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-31 20:29:43,395 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:29:43,395 INFO L85 PathProgramCache]: Analyzing trace with hash 1945509048, now seen corresponding path program 3 times [2023-08-31 20:29:43,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:29:43,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194895782] [2023-08-31 20:29:43,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:29:43,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:29:43,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:29:43,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:29:43,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:29:43,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194895782] [2023-08-31 20:29:43,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [194895782] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:29:43,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:29:43,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-31 20:29:43,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696446670] [2023-08-31 20:29:43,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:29:43,664 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-31 20:29:43,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:29:43,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-31 20:29:43,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-08-31 20:29:44,389 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 410 [2023-08-31 20:29:44,390 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 249 places, 875 transitions, 7242 flow. Second operand has 11 states, 11 states have (on average 168.0909090909091) internal successors, (1849), 11 states have internal predecessors, (1849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:29:44,390 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:29:44,390 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 410 [2023-08-31 20:29:44,390 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:29:50,896 INFO L130 PetriNetUnfolder]: 12624/29157 cut-off events. [2023-08-31 20:29:50,896 INFO L131 PetriNetUnfolder]: For 57425/57912 co-relation queries the response was YES. [2023-08-31 20:29:51,022 INFO L83 FinitePrefix]: Finished finitePrefix Result has 97269 conditions, 29157 events. 12624/29157 cut-off events. For 57425/57912 co-relation queries the response was YES. Maximal size of possible extension queue 349. Compared 257153 event pairs, 4078 based on Foata normal form. 25/28380 useless extension candidates. Maximal degree in co-relation 97207. Up to 9940 conditions per place. [2023-08-31 20:29:51,087 INFO L137 encePairwiseOnDemand]: 370/410 looper letters, 1199 selfloop transitions, 277 changer transitions 4/1522 dead transitions. [2023-08-31 20:29:51,087 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 260 places, 1522 transitions, 14232 flow [2023-08-31 20:29:51,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-31 20:29:51,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-31 20:29:51,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 2601 transitions. [2023-08-31 20:29:51,092 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5286585365853659 [2023-08-31 20:29:51,092 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 2601 transitions. [2023-08-31 20:29:51,092 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 2601 transitions. [2023-08-31 20:29:51,093 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:29:51,093 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 2601 transitions. [2023-08-31 20:29:51,096 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 216.75) internal successors, (2601), 12 states have internal predecessors, (2601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:29:51,100 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 410.0) internal successors, (5330), 13 states have internal predecessors, (5330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:29:51,100 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 410.0) internal successors, (5330), 13 states have internal predecessors, (5330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:29:51,100 INFO L175 Difference]: Start difference. First operand has 249 places, 875 transitions, 7242 flow. Second operand 12 states and 2601 transitions. [2023-08-31 20:29:51,101 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 260 places, 1522 transitions, 14232 flow [2023-08-31 20:29:51,444 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 259 places, 1522 transitions, 14181 flow, removed 16 selfloop flow, removed 1 redundant places. [2023-08-31 20:29:51,456 INFO L231 Difference]: Finished difference. Result has 266 places, 1004 transitions, 9524 flow [2023-08-31 20:29:51,457 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=7199, PETRI_DIFFERENCE_MINUEND_PLACES=248, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=875, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=148, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=601, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=9524, PETRI_PLACES=266, PETRI_TRANSITIONS=1004} [2023-08-31 20:29:51,457 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 132 predicate places. [2023-08-31 20:29:51,457 INFO L495 AbstractCegarLoop]: Abstraction has has 266 places, 1004 transitions, 9524 flow [2023-08-31 20:29:51,458 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 168.0909090909091) internal successors, (1849), 11 states have internal predecessors, (1849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:29:51,458 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:29:51,458 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:29:51,458 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-31 20:29:51,458 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-31 20:29:51,459 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:29:51,459 INFO L85 PathProgramCache]: Analyzing trace with hash -1284896658, now seen corresponding path program 4 times [2023-08-31 20:29:51,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:29:51,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216921380] [2023-08-31 20:29:51,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:29:51,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:29:51,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:29:51,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:29:51,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:29:51,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216921380] [2023-08-31 20:29:51,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1216921380] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:29:51,743 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:29:51,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-31 20:29:51,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341582715] [2023-08-31 20:29:51,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:29:51,743 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-31 20:29:51,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:29:51,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-31 20:29:51,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-08-31 20:29:52,760 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 410 [2023-08-31 20:29:52,761 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 266 places, 1004 transitions, 9524 flow. Second operand has 11 states, 11 states have (on average 168.0909090909091) internal successors, (1849), 11 states have internal predecessors, (1849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:29:52,761 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:29:52,761 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 410 [2023-08-31 20:29:52,761 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:29:59,715 INFO L130 PetriNetUnfolder]: 12658/29329 cut-off events. [2023-08-31 20:29:59,715 INFO L131 PetriNetUnfolder]: For 66789/67420 co-relation queries the response was YES. [2023-08-31 20:29:59,861 INFO L83 FinitePrefix]: Finished finitePrefix Result has 101611 conditions, 29329 events. 12658/29329 cut-off events. For 66789/67420 co-relation queries the response was YES. Maximal size of possible extension queue 347. Compared 258801 event pairs, 7065 based on Foata normal form. 57/28567 useless extension candidates. Maximal degree in co-relation 101542. Up to 15089 conditions per place. [2023-08-31 20:29:59,945 INFO L137 encePairwiseOnDemand]: 370/410 looper letters, 739 selfloop transitions, 429 changer transitions 2/1212 dead transitions. [2023-08-31 20:29:59,945 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 277 places, 1212 transitions, 13085 flow [2023-08-31 20:29:59,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-31 20:29:59,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-31 20:29:59,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 2398 transitions. [2023-08-31 20:29:59,950 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48739837398373986 [2023-08-31 20:29:59,950 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 2398 transitions. [2023-08-31 20:29:59,950 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 2398 transitions. [2023-08-31 20:29:59,951 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:29:59,951 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 2398 transitions. [2023-08-31 20:29:59,954 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 199.83333333333334) internal successors, (2398), 12 states have internal predecessors, (2398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:29:59,958 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 410.0) internal successors, (5330), 13 states have internal predecessors, (5330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:29:59,958 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 410.0) internal successors, (5330), 13 states have internal predecessors, (5330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:29:59,958 INFO L175 Difference]: Start difference. First operand has 266 places, 1004 transitions, 9524 flow. Second operand 12 states and 2398 transitions. [2023-08-31 20:29:59,959 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 277 places, 1212 transitions, 13085 flow [2023-08-31 20:30:00,467 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 276 places, 1212 transitions, 13008 flow, removed 31 selfloop flow, removed 1 redundant places. [2023-08-31 20:30:00,478 INFO L231 Difference]: Finished difference. Result has 282 places, 1021 transitions, 10743 flow [2023-08-31 20:30:00,479 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=9450, PETRI_DIFFERENCE_MINUEND_PLACES=265, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1004, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=412, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=581, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=10743, PETRI_PLACES=282, PETRI_TRANSITIONS=1021} [2023-08-31 20:30:00,479 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 148 predicate places. [2023-08-31 20:30:00,479 INFO L495 AbstractCegarLoop]: Abstraction has has 282 places, 1021 transitions, 10743 flow [2023-08-31 20:30:00,480 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 168.0909090909091) internal successors, (1849), 11 states have internal predecessors, (1849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:30:00,480 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:30:00,480 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:30:00,480 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-31 20:30:00,480 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-31 20:30:00,480 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:30:00,480 INFO L85 PathProgramCache]: Analyzing trace with hash 182703382, now seen corresponding path program 5 times [2023-08-31 20:30:00,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:30:00,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753223544] [2023-08-31 20:30:00,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:30:00,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:30:00,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:30:00,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:30:00,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:30:00,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753223544] [2023-08-31 20:30:00,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753223544] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:30:00,771 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:30:00,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-31 20:30:00,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723175846] [2023-08-31 20:30:00,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:30:00,772 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-31 20:30:00,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:30:00,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-31 20:30:00,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-08-31 20:30:01,859 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 410 [2023-08-31 20:30:01,861 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 282 places, 1021 transitions, 10743 flow. Second operand has 11 states, 11 states have (on average 168.0909090909091) internal successors, (1849), 11 states have internal predecessors, (1849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:30:01,861 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:30:01,861 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 410 [2023-08-31 20:30:01,861 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:30:09,258 INFO L130 PetriNetUnfolder]: 12738/29878 cut-off events. [2023-08-31 20:30:09,258 INFO L131 PetriNetUnfolder]: For 78611/79155 co-relation queries the response was YES. [2023-08-31 20:30:09,434 INFO L83 FinitePrefix]: Finished finitePrefix Result has 107078 conditions, 29878 events. 12738/29878 cut-off events. For 78611/79155 co-relation queries the response was YES. Maximal size of possible extension queue 351. Compared 268427 event pairs, 2212 based on Foata normal form. 27/29123 useless extension candidates. Maximal degree in co-relation 107003. Up to 12847 conditions per place. [2023-08-31 20:30:09,505 INFO L137 encePairwiseOnDemand]: 377/410 looper letters, 1343 selfloop transitions, 178 changer transitions 4/1567 dead transitions. [2023-08-31 20:30:09,505 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 295 places, 1567 transitions, 17360 flow [2023-08-31 20:30:09,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-31 20:30:09,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-31 20:30:09,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2919 transitions. [2023-08-31 20:30:09,509 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5085365853658537 [2023-08-31 20:30:09,509 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2919 transitions. [2023-08-31 20:30:09,509 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2919 transitions. [2023-08-31 20:30:09,509 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:30:09,510 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2919 transitions. [2023-08-31 20:30:09,512 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 208.5) internal successors, (2919), 14 states have internal predecessors, (2919), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:30:09,516 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 410.0) internal successors, (6150), 15 states have internal predecessors, (6150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:30:09,517 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 410.0) internal successors, (6150), 15 states have internal predecessors, (6150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:30:09,517 INFO L175 Difference]: Start difference. First operand has 282 places, 1021 transitions, 10743 flow. Second operand 14 states and 2919 transitions. [2023-08-31 20:30:09,517 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 295 places, 1567 transitions, 17360 flow [2023-08-31 20:30:10,145 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 290 places, 1567 transitions, 16478 flow, removed 32 selfloop flow, removed 5 redundant places. [2023-08-31 20:30:10,166 INFO L231 Difference]: Finished difference. Result has 295 places, 1130 transitions, 12013 flow [2023-08-31 20:30:10,167 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=10035, PETRI_DIFFERENCE_MINUEND_PLACES=277, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1021, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=69, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=846, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=12013, PETRI_PLACES=295, PETRI_TRANSITIONS=1130} [2023-08-31 20:30:10,167 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 161 predicate places. [2023-08-31 20:30:10,167 INFO L495 AbstractCegarLoop]: Abstraction has has 295 places, 1130 transitions, 12013 flow [2023-08-31 20:30:10,168 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 168.0909090909091) internal successors, (1849), 11 states have internal predecessors, (1849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:30:10,168 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:30:10,168 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:30:10,168 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-31 20:30:10,168 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-31 20:30:10,168 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:30:10,168 INFO L85 PathProgramCache]: Analyzing trace with hash -494380147, now seen corresponding path program 3 times [2023-08-31 20:30:10,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:30:10,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761153553] [2023-08-31 20:30:10,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:30:10,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:30:10,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:30:10,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:30:10,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:30:10,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761153553] [2023-08-31 20:30:10,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [761153553] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:30:10,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:30:10,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-31 20:30:10,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095232688] [2023-08-31 20:30:10,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:30:10,380 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-31 20:30:10,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:30:10,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-31 20:30:10,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-08-31 20:30:11,266 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 410 [2023-08-31 20:30:11,267 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 295 places, 1130 transitions, 12013 flow. Second operand has 11 states, 11 states have (on average 168.0909090909091) internal successors, (1849), 11 states have internal predecessors, (1849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:30:11,267 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:30:11,267 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 410 [2023-08-31 20:30:11,267 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:30:19,484 INFO L130 PetriNetUnfolder]: 12315/28728 cut-off events. [2023-08-31 20:30:19,484 INFO L131 PetriNetUnfolder]: For 98903/99872 co-relation queries the response was YES. [2023-08-31 20:30:19,643 INFO L83 FinitePrefix]: Finished finitePrefix Result has 105868 conditions, 28728 events. 12315/28728 cut-off events. For 98903/99872 co-relation queries the response was YES. Maximal size of possible extension queue 343. Compared 256110 event pairs, 3375 based on Foata normal form. 83/27913 useless extension candidates. Maximal degree in co-relation 105788. Up to 17910 conditions per place. [2023-08-31 20:30:19,710 INFO L137 encePairwiseOnDemand]: 362/410 looper letters, 1105 selfloop transitions, 670 changer transitions 4/1842 dead transitions. [2023-08-31 20:30:19,710 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 326 places, 1842 transitions, 20141 flow [2023-08-31 20:30:19,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-08-31 20:30:19,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2023-08-31 20:30:19,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 6244 transitions. [2023-08-31 20:30:19,715 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47591463414634144 [2023-08-31 20:30:19,715 INFO L72 ComplementDD]: Start complementDD. Operand 32 states and 6244 transitions. [2023-08-31 20:30:19,715 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 6244 transitions. [2023-08-31 20:30:19,716 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:30:19,717 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 32 states and 6244 transitions. [2023-08-31 20:30:19,722 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 33 states, 32 states have (on average 195.125) internal successors, (6244), 32 states have internal predecessors, (6244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:30:19,730 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 33 states, 33 states have (on average 410.0) internal successors, (13530), 33 states have internal predecessors, (13530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:30:19,731 INFO L81 ComplementDD]: Finished complementDD. Result has 33 states, 33 states have (on average 410.0) internal successors, (13530), 33 states have internal predecessors, (13530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:30:19,731 INFO L175 Difference]: Start difference. First operand has 295 places, 1130 transitions, 12013 flow. Second operand 32 states and 6244 transitions. [2023-08-31 20:30:19,731 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 326 places, 1842 transitions, 20141 flow [2023-08-31 20:30:20,338 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 319 places, 1842 transitions, 19635 flow, removed 177 selfloop flow, removed 7 redundant places. [2023-08-31 20:30:20,355 INFO L231 Difference]: Finished difference. Result has 327 places, 1324 transitions, 15581 flow [2023-08-31 20:30:20,355 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=11609, PETRI_DIFFERENCE_MINUEND_PLACES=288, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=476, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=621, PETRI_DIFFERENCE_SUBTRAHEND_STATES=32, PETRI_FLOW=15581, PETRI_PLACES=327, PETRI_TRANSITIONS=1324} [2023-08-31 20:30:20,356 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 193 predicate places. [2023-08-31 20:30:20,356 INFO L495 AbstractCegarLoop]: Abstraction has has 327 places, 1324 transitions, 15581 flow [2023-08-31 20:30:20,356 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 168.0909090909091) internal successors, (1849), 11 states have internal predecessors, (1849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:30:20,356 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:30:20,356 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:30:20,357 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-31 20:30:20,357 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-31 20:30:20,357 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:30:20,357 INFO L85 PathProgramCache]: Analyzing trace with hash 895307170, now seen corresponding path program 6 times [2023-08-31 20:30:20,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:30:20,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056431263] [2023-08-31 20:30:20,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:30:20,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:30:20,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:30:20,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:30:20,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:30:20,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056431263] [2023-08-31 20:30:20,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1056431263] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:30:20,599 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:30:20,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-31 20:30:20,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997202626] [2023-08-31 20:30:20,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:30:20,599 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-31 20:30:20,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:30:20,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-31 20:30:20,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-08-31 20:30:21,543 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 410 [2023-08-31 20:30:21,545 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 327 places, 1324 transitions, 15581 flow. Second operand has 11 states, 11 states have (on average 168.0909090909091) internal successors, (1849), 11 states have internal predecessors, (1849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:30:21,545 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:30:21,545 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 410 [2023-08-31 20:30:21,545 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:30:29,622 INFO L130 PetriNetUnfolder]: 12745/29527 cut-off events. [2023-08-31 20:30:29,623 INFO L131 PetriNetUnfolder]: For 109073/109837 co-relation queries the response was YES. [2023-08-31 20:30:29,818 INFO L83 FinitePrefix]: Finished finitePrefix Result has 113160 conditions, 29527 events. 12745/29527 cut-off events. For 109073/109837 co-relation queries the response was YES. Maximal size of possible extension queue 349. Compared 260503 event pairs, 7030 based on Foata normal form. 67/28780 useless extension candidates. Maximal degree in co-relation 113072. Up to 15297 conditions per place. [2023-08-31 20:30:29,890 INFO L137 encePairwiseOnDemand]: 370/410 looper letters, 882 selfloop transitions, 541 changer transitions 2/1479 dead transitions. [2023-08-31 20:30:29,890 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 336 places, 1479 transitions, 19568 flow [2023-08-31 20:30:29,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-31 20:30:29,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-31 20:30:29,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1970 transitions. [2023-08-31 20:30:29,892 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48048780487804876 [2023-08-31 20:30:29,892 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1970 transitions. [2023-08-31 20:30:29,892 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1970 transitions. [2023-08-31 20:30:29,893 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:30:29,893 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1970 transitions. [2023-08-31 20:30:29,894 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 197.0) internal successors, (1970), 10 states have internal predecessors, (1970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:30:29,896 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 410.0) internal successors, (4510), 11 states have internal predecessors, (4510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:30:29,897 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 410.0) internal successors, (4510), 11 states have internal predecessors, (4510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:30:29,897 INFO L175 Difference]: Start difference. First operand has 327 places, 1324 transitions, 15581 flow. Second operand 10 states and 1970 transitions. [2023-08-31 20:30:29,897 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 336 places, 1479 transitions, 19568 flow [2023-08-31 20:30:30,819 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 332 places, 1479 transitions, 18655 flow, removed 409 selfloop flow, removed 4 redundant places. [2023-08-31 20:30:30,835 INFO L231 Difference]: Finished difference. Result has 337 places, 1336 transitions, 16396 flow [2023-08-31 20:30:30,835 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=14732, PETRI_DIFFERENCE_MINUEND_PLACES=323, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1324, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=530, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=788, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=16396, PETRI_PLACES=337, PETRI_TRANSITIONS=1336} [2023-08-31 20:30:30,836 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 203 predicate places. [2023-08-31 20:30:30,836 INFO L495 AbstractCegarLoop]: Abstraction has has 337 places, 1336 transitions, 16396 flow [2023-08-31 20:30:30,836 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 168.0909090909091) internal successors, (1849), 11 states have internal predecessors, (1849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:30:30,836 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:30:30,836 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:30:30,836 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-31 20:30:30,836 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-31 20:30:30,836 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:30:30,836 INFO L85 PathProgramCache]: Analyzing trace with hash 1045145788, now seen corresponding path program 7 times [2023-08-31 20:30:30,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:30:30,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115299010] [2023-08-31 20:30:30,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:30:30,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:30:30,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:30:31,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:30:31,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:30:31,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115299010] [2023-08-31 20:30:31,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1115299010] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:30:31,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:30:31,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-31 20:30:31,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277285753] [2023-08-31 20:30:31,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:30:31,208 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-31 20:30:31,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:30:31,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-31 20:30:31,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-08-31 20:30:32,160 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 410 [2023-08-31 20:30:32,161 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 337 places, 1336 transitions, 16396 flow. Second operand has 11 states, 11 states have (on average 168.0909090909091) internal successors, (1849), 11 states have internal predecessors, (1849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:30:32,161 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:30:32,161 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 410 [2023-08-31 20:30:32,161 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:30:40,201 INFO L130 PetriNetUnfolder]: 12884/30222 cut-off events. [2023-08-31 20:30:40,201 INFO L131 PetriNetUnfolder]: For 106256/106897 co-relation queries the response was YES. [2023-08-31 20:30:40,397 INFO L83 FinitePrefix]: Finished finitePrefix Result has 116107 conditions, 30222 events. 12884/30222 cut-off events. For 106256/106897 co-relation queries the response was YES. Maximal size of possible extension queue 350. Compared 270561 event pairs, 2878 based on Foata normal form. 24/29474 useless extension candidates. Maximal degree in co-relation 116013. Up to 12834 conditions per place. [2023-08-31 20:30:40,471 INFO L137 encePairwiseOnDemand]: 369/410 looper letters, 1477 selfloop transitions, 226 changer transitions 4/1761 dead transitions. [2023-08-31 20:30:40,471 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 348 places, 1761 transitions, 22899 flow [2023-08-31 20:30:40,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-31 20:30:40,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-31 20:30:40,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 2476 transitions. [2023-08-31 20:30:40,474 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5032520325203252 [2023-08-31 20:30:40,474 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 2476 transitions. [2023-08-31 20:30:40,474 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 2476 transitions. [2023-08-31 20:30:40,474 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:30:40,474 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 2476 transitions. [2023-08-31 20:30:40,476 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 206.33333333333334) internal successors, (2476), 12 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:30:40,478 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 410.0) internal successors, (5330), 13 states have internal predecessors, (5330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:30:40,479 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 410.0) internal successors, (5330), 13 states have internal predecessors, (5330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:30:40,479 INFO L175 Difference]: Start difference. First operand has 337 places, 1336 transitions, 16396 flow. Second operand 12 states and 2476 transitions. [2023-08-31 20:30:40,479 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 348 places, 1761 transitions, 22899 flow [2023-08-31 20:30:41,373 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 343 places, 1761 transitions, 21928 flow, removed 34 selfloop flow, removed 5 redundant places. [2023-08-31 20:30:41,391 INFO L231 Difference]: Finished difference. Result has 349 places, 1386 transitions, 17037 flow [2023-08-31 20:30:41,392 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=15482, PETRI_DIFFERENCE_MINUEND_PLACES=332, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1336, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=178, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=17037, PETRI_PLACES=349, PETRI_TRANSITIONS=1386} [2023-08-31 20:30:41,392 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 215 predicate places. [2023-08-31 20:30:41,392 INFO L495 AbstractCegarLoop]: Abstraction has has 349 places, 1386 transitions, 17037 flow [2023-08-31 20:30:41,393 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 168.0909090909091) internal successors, (1849), 11 states have internal predecessors, (1849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:30:41,393 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:30:41,393 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:30:41,393 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-31 20:30:41,393 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-31 20:30:41,393 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:30:41,393 INFO L85 PathProgramCache]: Analyzing trace with hash -2009927556, now seen corresponding path program 8 times [2023-08-31 20:30:41,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:30:41,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33348036] [2023-08-31 20:30:41,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:30:41,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:30:41,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:30:41,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:30:41,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:30:41,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33348036] [2023-08-31 20:30:41,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [33348036] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:30:41,630 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:30:41,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-31 20:30:41,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064448860] [2023-08-31 20:30:41,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:30:41,631 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-31 20:30:41,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:30:41,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-31 20:30:41,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-08-31 20:30:42,373 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 410 [2023-08-31 20:30:42,374 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 349 places, 1386 transitions, 17037 flow. Second operand has 11 states, 11 states have (on average 168.0909090909091) internal successors, (1849), 11 states have internal predecessors, (1849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:30:42,374 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:30:42,374 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 410 [2023-08-31 20:30:42,374 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:30:51,462 INFO L130 PetriNetUnfolder]: 12961/30229 cut-off events. [2023-08-31 20:30:51,462 INFO L131 PetriNetUnfolder]: For 140487/141103 co-relation queries the response was YES. [2023-08-31 20:30:51,665 INFO L83 FinitePrefix]: Finished finitePrefix Result has 118989 conditions, 30229 events. 12961/30229 cut-off events. For 140487/141103 co-relation queries the response was YES. Maximal size of possible extension queue 349. Compared 268742 event pairs, 4508 based on Foata normal form. 46/29717 useless extension candidates. Maximal degree in co-relation 118890. Up to 10462 conditions per place. [2023-08-31 20:30:51,745 INFO L137 encePairwiseOnDemand]: 378/410 looper letters, 2019 selfloop transitions, 176 changer transitions 6/2255 dead transitions. [2023-08-31 20:30:51,745 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 362 places, 2255 transitions, 28518 flow [2023-08-31 20:30:51,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-31 20:30:51,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-31 20:30:51,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 3089 transitions. [2023-08-31 20:30:51,748 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5381533101045296 [2023-08-31 20:30:51,748 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 3089 transitions. [2023-08-31 20:30:51,748 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 3089 transitions. [2023-08-31 20:30:51,749 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:30:51,749 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 3089 transitions. [2023-08-31 20:30:51,751 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 220.64285714285714) internal successors, (3089), 14 states have internal predecessors, (3089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:30:51,754 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 410.0) internal successors, (6150), 15 states have internal predecessors, (6150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:30:51,754 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 410.0) internal successors, (6150), 15 states have internal predecessors, (6150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:30:51,754 INFO L175 Difference]: Start difference. First operand has 349 places, 1386 transitions, 17037 flow. Second operand 14 states and 3089 transitions. [2023-08-31 20:30:51,754 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 362 places, 2255 transitions, 28518 flow [2023-08-31 20:30:52,723 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 359 places, 2255 transitions, 28203 flow, removed 116 selfloop flow, removed 3 redundant places. [2023-08-31 20:30:52,744 INFO L231 Difference]: Finished difference. Result has 366 places, 1497 transitions, 19161 flow [2023-08-31 20:30:52,744 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=16722, PETRI_DIFFERENCE_MINUEND_PLACES=346, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1386, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=65, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1213, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=19161, PETRI_PLACES=366, PETRI_TRANSITIONS=1497} [2023-08-31 20:30:52,745 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 232 predicate places. [2023-08-31 20:30:52,745 INFO L495 AbstractCegarLoop]: Abstraction has has 366 places, 1497 transitions, 19161 flow [2023-08-31 20:30:52,745 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 168.0909090909091) internal successors, (1849), 11 states have internal predecessors, (1849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:30:52,745 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:30:52,746 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:30:52,746 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-31 20:30:52,746 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-31 20:30:52,746 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:30:52,746 INFO L85 PathProgramCache]: Analyzing trace with hash 1952860698, now seen corresponding path program 9 times [2023-08-31 20:30:52,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:30:52,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245285895] [2023-08-31 20:30:52,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:30:52,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:30:52,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:30:52,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:30:52,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:30:52,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245285895] [2023-08-31 20:30:52,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245285895] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:30:52,977 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:30:52,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-31 20:30:52,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564303645] [2023-08-31 20:30:52,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:30:52,977 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-31 20:30:52,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:30:52,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-31 20:30:52,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-08-31 20:30:54,174 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 410 [2023-08-31 20:30:54,175 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 366 places, 1497 transitions, 19161 flow. Second operand has 11 states, 11 states have (on average 168.0909090909091) internal successors, (1849), 11 states have internal predecessors, (1849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:30:54,175 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:30:54,175 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 410 [2023-08-31 20:30:54,175 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:31:03,447 INFO L130 PetriNetUnfolder]: 12976/30130 cut-off events. [2023-08-31 20:31:03,448 INFO L131 PetriNetUnfolder]: For 171923/172618 co-relation queries the response was YES. [2023-08-31 20:31:03,669 INFO L83 FinitePrefix]: Finished finitePrefix Result has 122322 conditions, 30130 events. 12976/30130 cut-off events. For 171923/172618 co-relation queries the response was YES. Maximal size of possible extension queue 350. Compared 266050 event pairs, 5124 based on Foata normal form. 59/29633 useless extension candidates. Maximal degree in co-relation 122216. Up to 10462 conditions per place. [2023-08-31 20:31:03,757 INFO L137 encePairwiseOnDemand]: 370/410 looper letters, 1571 selfloop transitions, 411 changer transitions 4/2040 dead transitions. [2023-08-31 20:31:03,758 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 378 places, 2040 transitions, 27228 flow [2023-08-31 20:31:03,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-08-31 20:31:03,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-08-31 20:31:03,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2783 transitions. [2023-08-31 20:31:03,761 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5221388367729831 [2023-08-31 20:31:03,761 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2783 transitions. [2023-08-31 20:31:03,761 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2783 transitions. [2023-08-31 20:31:03,762 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:31:03,762 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2783 transitions. [2023-08-31 20:31:03,764 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 214.07692307692307) internal successors, (2783), 13 states have internal predecessors, (2783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:31:03,767 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 410.0) internal successors, (5740), 14 states have internal predecessors, (5740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:31:03,767 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 410.0) internal successors, (5740), 14 states have internal predecessors, (5740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:31:03,767 INFO L175 Difference]: Start difference. First operand has 366 places, 1497 transitions, 19161 flow. Second operand 13 states and 2783 transitions. [2023-08-31 20:31:03,767 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 378 places, 2040 transitions, 27228 flow [2023-08-31 20:31:04,882 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 374 places, 2040 transitions, 26731 flow, removed 205 selfloop flow, removed 4 redundant places. [2023-08-31 20:31:04,903 INFO L231 Difference]: Finished difference. Result has 378 places, 1510 transitions, 19985 flow [2023-08-31 20:31:04,904 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=18670, PETRI_DIFFERENCE_MINUEND_PLACES=362, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1497, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=398, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1089, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=19985, PETRI_PLACES=378, PETRI_TRANSITIONS=1510} [2023-08-31 20:31:04,904 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 244 predicate places. [2023-08-31 20:31:04,905 INFO L495 AbstractCegarLoop]: Abstraction has has 378 places, 1510 transitions, 19985 flow [2023-08-31 20:31:04,905 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 168.0909090909091) internal successors, (1849), 11 states have internal predecessors, (1849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:31:04,905 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:31:04,905 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:31:04,905 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-08-31 20:31:04,905 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-31 20:31:04,906 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:31:04,906 INFO L85 PathProgramCache]: Analyzing trace with hash 337311342, now seen corresponding path program 10 times [2023-08-31 20:31:04,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:31:04,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912697736] [2023-08-31 20:31:04,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:31:04,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:31:04,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:31:05,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:31:05,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:31:05,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [912697736] [2023-08-31 20:31:05,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [912697736] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:31:05,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:31:05,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-31 20:31:05,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266733032] [2023-08-31 20:31:05,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:31:05,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-31 20:31:05,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:31:05,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-31 20:31:05,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-08-31 20:31:06,372 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 410 [2023-08-31 20:31:06,373 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 378 places, 1510 transitions, 19985 flow. Second operand has 11 states, 11 states have (on average 168.0909090909091) internal successors, (1849), 11 states have internal predecessors, (1849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:31:06,373 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:31:06,373 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 410 [2023-08-31 20:31:06,373 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:31:15,504 INFO L130 PetriNetUnfolder]: 13034/30136 cut-off events. [2023-08-31 20:31:15,504 INFO L131 PetriNetUnfolder]: For 187262/187991 co-relation queries the response was YES. [2023-08-31 20:31:15,719 INFO L83 FinitePrefix]: Finished finitePrefix Result has 125330 conditions, 30136 events. 13034/30136 cut-off events. For 187262/187991 co-relation queries the response was YES. Maximal size of possible extension queue 351. Compared 266022 event pairs, 7053 based on Foata normal form. 70/29603 useless extension candidates. Maximal degree in co-relation 125220. Up to 15577 conditions per place. [2023-08-31 20:31:15,794 INFO L137 encePairwiseOnDemand]: 370/410 looper letters, 1000 selfloop transitions, 680 changer transitions 2/1736 dead transitions. [2023-08-31 20:31:15,794 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 387 places, 1736 transitions, 25542 flow [2023-08-31 20:31:15,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-31 20:31:15,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-31 20:31:15,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1970 transitions. [2023-08-31 20:31:15,796 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48048780487804876 [2023-08-31 20:31:15,796 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1970 transitions. [2023-08-31 20:31:15,796 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1970 transitions. [2023-08-31 20:31:15,797 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:31:15,797 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1970 transitions. [2023-08-31 20:31:15,799 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 197.0) internal successors, (1970), 10 states have internal predecessors, (1970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:31:15,801 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 410.0) internal successors, (4510), 11 states have internal predecessors, (4510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:31:15,801 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 410.0) internal successors, (4510), 11 states have internal predecessors, (4510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:31:15,801 INFO L175 Difference]: Start difference. First operand has 378 places, 1510 transitions, 19985 flow. Second operand 10 states and 1970 transitions. [2023-08-31 20:31:15,801 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 387 places, 1736 transitions, 25542 flow [2023-08-31 20:31:17,060 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 380 places, 1736 transitions, 24778 flow, removed 72 selfloop flow, removed 7 redundant places. [2023-08-31 20:31:17,080 INFO L231 Difference]: Finished difference. Result has 386 places, 1545 transitions, 22075 flow [2023-08-31 20:31:17,080 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=19223, PETRI_DIFFERENCE_MINUEND_PLACES=371, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1510, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=649, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=837, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=22075, PETRI_PLACES=386, PETRI_TRANSITIONS=1545} [2023-08-31 20:31:17,081 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 252 predicate places. [2023-08-31 20:31:17,081 INFO L495 AbstractCegarLoop]: Abstraction has has 386 places, 1545 transitions, 22075 flow [2023-08-31 20:31:17,081 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 168.0909090909091) internal successors, (1849), 11 states have internal predecessors, (1849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:31:17,081 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:31:17,081 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:31:17,081 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-08-31 20:31:17,081 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-31 20:31:17,082 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:31:17,082 INFO L85 PathProgramCache]: Analyzing trace with hash 1186330089, now seen corresponding path program 4 times [2023-08-31 20:31:17,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:31:17,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834820896] [2023-08-31 20:31:17,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:31:17,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:31:17,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:31:17,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:31:17,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:31:17,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834820896] [2023-08-31 20:31:17,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1834820896] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:31:17,284 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:31:17,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-31 20:31:17,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813177442] [2023-08-31 20:31:17,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:31:17,285 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-31 20:31:17,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:31:17,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-31 20:31:17,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2023-08-31 20:31:17,981 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 410 [2023-08-31 20:31:17,982 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 386 places, 1545 transitions, 22075 flow. Second operand has 11 states, 11 states have (on average 168.0909090909091) internal successors, (1849), 11 states have internal predecessors, (1849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:31:17,982 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:31:17,982 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 410 [2023-08-31 20:31:17,982 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:31:27,471 INFO L130 PetriNetUnfolder]: 12553/29080 cut-off events. [2023-08-31 20:31:27,471 INFO L131 PetriNetUnfolder]: For 206667/207857 co-relation queries the response was YES. [2023-08-31 20:31:27,708 INFO L83 FinitePrefix]: Finished finitePrefix Result has 123947 conditions, 29080 events. 12553/29080 cut-off events. For 206667/207857 co-relation queries the response was YES. Maximal size of possible extension queue 344. Compared 256021 event pairs, 5257 based on Foata normal form. 94/28368 useless extension candidates. Maximal degree in co-relation 123831. Up to 10079 conditions per place. [2023-08-31 20:31:27,784 INFO L137 encePairwiseOnDemand]: 370/410 looper letters, 2013 selfloop transitions, 227 changer transitions 6/2325 dead transitions. [2023-08-31 20:31:27,784 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 407 places, 2325 transitions, 32804 flow [2023-08-31 20:31:27,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-08-31 20:31:27,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2023-08-31 20:31:27,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 4458 transitions. [2023-08-31 20:31:27,788 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49423503325942353 [2023-08-31 20:31:27,788 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 4458 transitions. [2023-08-31 20:31:27,788 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 4458 transitions. [2023-08-31 20:31:27,789 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:31:27,789 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 4458 transitions. [2023-08-31 20:31:27,792 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 202.63636363636363) internal successors, (4458), 22 states have internal predecessors, (4458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:31:27,796 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 410.0) internal successors, (9430), 23 states have internal predecessors, (9430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:31:27,797 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 410.0) internal successors, (9430), 23 states have internal predecessors, (9430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:31:27,797 INFO L175 Difference]: Start difference. First operand has 386 places, 1545 transitions, 22075 flow. Second operand 22 states and 4458 transitions. [2023-08-31 20:31:27,797 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 407 places, 2325 transitions, 32804 flow [2023-08-31 20:31:29,278 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 407 places, 2325 transitions, 32166 flow, removed 319 selfloop flow, removed 0 redundant places. [2023-08-31 20:31:29,407 INFO L231 Difference]: Finished difference. Result has 421 places, 1697 transitions, 24721 flow [2023-08-31 20:31:29,407 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=21657, PETRI_DIFFERENCE_MINUEND_PLACES=386, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1545, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=76, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1329, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=24721, PETRI_PLACES=421, PETRI_TRANSITIONS=1697} [2023-08-31 20:31:29,408 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 287 predicate places. [2023-08-31 20:31:29,408 INFO L495 AbstractCegarLoop]: Abstraction has has 421 places, 1697 transitions, 24721 flow [2023-08-31 20:31:29,408 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 168.0909090909091) internal successors, (1849), 11 states have internal predecessors, (1849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:31:29,408 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:31:29,408 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:31:29,409 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-08-31 20:31:29,409 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-31 20:31:29,409 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:31:29,409 INFO L85 PathProgramCache]: Analyzing trace with hash 187460550, now seen corresponding path program 11 times [2023-08-31 20:31:29,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:31:29,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294533180] [2023-08-31 20:31:29,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:31:29,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:31:29,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:31:29,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:31:29,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:31:29,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294533180] [2023-08-31 20:31:29,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [294533180] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:31:29,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:31:29,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-31 20:31:29,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698219934] [2023-08-31 20:31:29,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:31:29,624 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-31 20:31:29,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:31:29,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-31 20:31:29,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2023-08-31 20:31:30,781 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 410 [2023-08-31 20:31:30,782 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 421 places, 1697 transitions, 24721 flow. Second operand has 11 states, 11 states have (on average 168.0909090909091) internal successors, (1849), 11 states have internal predecessors, (1849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:31:30,782 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:31:30,783 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 410 [2023-08-31 20:31:30,783 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:31:41,206 INFO L130 PetriNetUnfolder]: 13074/30049 cut-off events. [2023-08-31 20:31:41,206 INFO L131 PetriNetUnfolder]: For 205210/205991 co-relation queries the response was YES. [2023-08-31 20:31:41,458 INFO L83 FinitePrefix]: Finished finitePrefix Result has 129585 conditions, 30049 events. 13074/30049 cut-off events. For 205210/205991 co-relation queries the response was YES. Maximal size of possible extension queue 347. Compared 264739 event pairs, 3673 based on Foata normal form. 57/29503 useless extension candidates. Maximal degree in co-relation 129454. Up to 13045 conditions per place. [2023-08-31 20:31:41,538 INFO L137 encePairwiseOnDemand]: 369/410 looper letters, 1783 selfloop transitions, 232 changer transitions 4/2073 dead transitions. [2023-08-31 20:31:41,539 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 432 places, 2073 transitions, 31443 flow [2023-08-31 20:31:41,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-31 20:31:41,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-31 20:31:41,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 2502 transitions. [2023-08-31 20:31:41,541 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5085365853658537 [2023-08-31 20:31:41,541 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 2502 transitions. [2023-08-31 20:31:41,541 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 2502 transitions. [2023-08-31 20:31:41,541 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:31:41,542 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 2502 transitions. [2023-08-31 20:31:41,544 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 208.5) internal successors, (2502), 12 states have internal predecessors, (2502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:31:41,546 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 410.0) internal successors, (5330), 13 states have internal predecessors, (5330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:31:41,546 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 410.0) internal successors, (5330), 13 states have internal predecessors, (5330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:31:41,546 INFO L175 Difference]: Start difference. First operand has 421 places, 1697 transitions, 24721 flow. Second operand 12 states and 2502 transitions. [2023-08-31 20:31:41,547 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 432 places, 2073 transitions, 31443 flow [2023-08-31 20:31:43,154 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 424 places, 2073 transitions, 30551 flow, removed 354 selfloop flow, removed 8 redundant places. [2023-08-31 20:31:43,177 INFO L231 Difference]: Finished difference. Result has 429 places, 1719 transitions, 24951 flow [2023-08-31 20:31:43,177 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=23833, PETRI_DIFFERENCE_MINUEND_PLACES=413, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1697, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=211, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1469, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=24951, PETRI_PLACES=429, PETRI_TRANSITIONS=1719} [2023-08-31 20:31:43,178 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 295 predicate places. [2023-08-31 20:31:43,178 INFO L495 AbstractCegarLoop]: Abstraction has has 429 places, 1719 transitions, 24951 flow [2023-08-31 20:31:43,178 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 168.0909090909091) internal successors, (1849), 11 states have internal predecessors, (1849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:31:43,178 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:31:43,178 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:31:43,179 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-08-31 20:31:43,179 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-31 20:31:43,179 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:31:43,179 INFO L85 PathProgramCache]: Analyzing trace with hash -1147485150, now seen corresponding path program 12 times [2023-08-31 20:31:43,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:31:43,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296813909] [2023-08-31 20:31:43,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:31:43,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:31:43,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:31:43,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:31:43,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:31:43,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296813909] [2023-08-31 20:31:43,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1296813909] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:31:43,402 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:31:43,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-31 20:31:43,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135574347] [2023-08-31 20:31:43,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:31:43,403 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-31 20:31:43,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:31:43,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-31 20:31:43,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-08-31 20:31:44,291 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 410 [2023-08-31 20:31:44,292 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 429 places, 1719 transitions, 24951 flow. Second operand has 11 states, 11 states have (on average 168.0909090909091) internal successors, (1849), 11 states have internal predecessors, (1849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:31:44,292 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:31:44,292 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 410 [2023-08-31 20:31:44,292 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:31:54,497 INFO L130 PetriNetUnfolder]: 13124/30135 cut-off events. [2023-08-31 20:31:54,497 INFO L131 PetriNetUnfolder]: For 206868/207602 co-relation queries the response was YES. [2023-08-31 20:31:54,937 INFO L83 FinitePrefix]: Finished finitePrefix Result has 130473 conditions, 30135 events. 13124/30135 cut-off events. For 206868/207602 co-relation queries the response was YES. Maximal size of possible extension queue 349. Compared 265685 event pairs, 4139 based on Foata normal form. 68/29600 useless extension candidates. Maximal degree in co-relation 130338. Up to 10626 conditions per place. [2023-08-31 20:31:55,017 INFO L137 encePairwiseOnDemand]: 370/410 looper letters, 1664 selfloop transitions, 440 changer transitions 4/2162 dead transitions. [2023-08-31 20:31:55,017 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 440 places, 2162 transitions, 32663 flow [2023-08-31 20:31:55,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-31 20:31:55,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-31 20:31:55,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 2524 transitions. [2023-08-31 20:31:55,019 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5130081300813009 [2023-08-31 20:31:55,019 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 2524 transitions. [2023-08-31 20:31:55,019 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 2524 transitions. [2023-08-31 20:31:55,020 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:31:55,020 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 2524 transitions. [2023-08-31 20:31:55,022 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 210.33333333333334) internal successors, (2524), 12 states have internal predecessors, (2524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:31:55,024 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 410.0) internal successors, (5330), 13 states have internal predecessors, (5330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:31:55,024 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 410.0) internal successors, (5330), 13 states have internal predecessors, (5330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:31:55,024 INFO L175 Difference]: Start difference. First operand has 429 places, 1719 transitions, 24951 flow. Second operand 12 states and 2524 transitions. [2023-08-31 20:31:55,025 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 440 places, 2162 transitions, 32663 flow [2023-08-31 20:31:56,901 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 436 places, 2162 transitions, 32291 flow, removed 122 selfloop flow, removed 4 redundant places. [2023-08-31 20:31:56,925 INFO L231 Difference]: Finished difference. Result has 441 places, 1752 transitions, 26762 flow [2023-08-31 20:31:56,926 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=24579, PETRI_DIFFERENCE_MINUEND_PLACES=425, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1719, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=410, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1285, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=26762, PETRI_PLACES=441, PETRI_TRANSITIONS=1752} [2023-08-31 20:31:56,926 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 307 predicate places. [2023-08-31 20:31:56,926 INFO L495 AbstractCegarLoop]: Abstraction has has 441 places, 1752 transitions, 26762 flow [2023-08-31 20:31:56,927 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 168.0909090909091) internal successors, (1849), 11 states have internal predecessors, (1849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:31:56,927 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:31:56,927 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:31:56,927 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-08-31 20:31:56,927 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-31 20:31:56,928 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:31:56,928 INFO L85 PathProgramCache]: Analyzing trace with hash -2005001128, now seen corresponding path program 13 times [2023-08-31 20:31:56,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:31:56,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773533890] [2023-08-31 20:31:56,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:31:56,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:31:56,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:31:57,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:31:57,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:31:57,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773533890] [2023-08-31 20:31:57,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773533890] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:31:57,140 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:31:57,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-31 20:31:57,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569407470] [2023-08-31 20:31:57,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:31:57,141 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-31 20:31:57,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:31:57,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-31 20:31:57,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2023-08-31 20:31:58,078 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 410 [2023-08-31 20:31:58,079 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 441 places, 1752 transitions, 26762 flow. Second operand has 11 states, 11 states have (on average 168.0909090909091) internal successors, (1849), 11 states have internal predecessors, (1849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:31:58,079 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:31:58,079 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 410 [2023-08-31 20:31:58,079 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:32:09,387 INFO L130 PetriNetUnfolder]: 13093/30100 cut-off events. [2023-08-31 20:32:09,388 INFO L131 PetriNetUnfolder]: For 226029/226752 co-relation queries the response was YES. [2023-08-31 20:32:09,677 INFO L83 FinitePrefix]: Finished finitePrefix Result has 132537 conditions, 30100 events. 13093/30100 cut-off events. For 226029/226752 co-relation queries the response was YES. Maximal size of possible extension queue 349. Compared 265178 event pairs, 4156 based on Foata normal form. 75/29575 useless extension candidates. Maximal degree in co-relation 132397. Up to 10626 conditions per place. [2023-08-31 20:32:09,755 INFO L137 encePairwiseOnDemand]: 370/410 looper letters, 1681 selfloop transitions, 454 changer transitions 4/2193 dead transitions. [2023-08-31 20:32:09,755 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 454 places, 2193 transitions, 33930 flow [2023-08-31 20:32:09,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-31 20:32:09,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-31 20:32:09,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2965 transitions. [2023-08-31 20:32:09,757 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5165505226480837 [2023-08-31 20:32:09,757 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2965 transitions. [2023-08-31 20:32:09,757 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2965 transitions. [2023-08-31 20:32:09,758 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:32:09,758 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2965 transitions. [2023-08-31 20:32:09,762 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 211.78571428571428) internal successors, (2965), 14 states have internal predecessors, (2965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:32:09,765 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 410.0) internal successors, (6150), 15 states have internal predecessors, (6150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:32:09,765 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 410.0) internal successors, (6150), 15 states have internal predecessors, (6150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:32:09,765 INFO L175 Difference]: Start difference. First operand has 441 places, 1752 transitions, 26762 flow. Second operand 14 states and 2965 transitions. [2023-08-31 20:32:09,765 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 454 places, 2193 transitions, 33930 flow [2023-08-31 20:32:11,972 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 450 places, 2193 transitions, 33003 flow, removed 240 selfloop flow, removed 4 redundant places. [2023-08-31 20:32:11,997 INFO L231 Difference]: Finished difference. Result has 456 places, 1771 transitions, 27626 flow [2023-08-31 20:32:11,998 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=25898, PETRI_DIFFERENCE_MINUEND_PLACES=437, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1752, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=436, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1302, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=27626, PETRI_PLACES=456, PETRI_TRANSITIONS=1771} [2023-08-31 20:32:11,999 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 322 predicate places. [2023-08-31 20:32:11,999 INFO L495 AbstractCegarLoop]: Abstraction has has 456 places, 1771 transitions, 27626 flow [2023-08-31 20:32:11,999 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 168.0909090909091) internal successors, (1849), 11 states have internal predecessors, (1849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:32:11,999 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:32:11,999 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:32:12,000 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-08-31 20:32:12,000 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-31 20:32:12,000 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:32:12,000 INFO L85 PathProgramCache]: Analyzing trace with hash -149475660, now seen corresponding path program 14 times [2023-08-31 20:32:12,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:32:12,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843711910] [2023-08-31 20:32:12,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:32:12,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:32:12,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:32:12,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:32:12,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:32:12,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843711910] [2023-08-31 20:32:12,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [843711910] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:32:12,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:32:12,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-31 20:32:12,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556710528] [2023-08-31 20:32:12,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:32:12,239 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-31 20:32:12,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:32:12,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-31 20:32:12,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-08-31 20:32:13,162 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 410 [2023-08-31 20:32:13,163 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 456 places, 1771 transitions, 27626 flow. Second operand has 11 states, 11 states have (on average 168.0909090909091) internal successors, (1849), 11 states have internal predecessors, (1849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:32:13,163 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:32:13,163 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 410 [2023-08-31 20:32:13,163 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:32:24,195 INFO L130 PetriNetUnfolder]: 13090/30439 cut-off events. [2023-08-31 20:32:24,195 INFO L131 PetriNetUnfolder]: For 229682/230555 co-relation queries the response was YES. [2023-08-31 20:32:24,509 INFO L83 FinitePrefix]: Finished finitePrefix Result has 134081 conditions, 30439 events. 13090/30439 cut-off events. For 229682/230555 co-relation queries the response was YES. Maximal size of possible extension queue 348. Compared 270199 event pairs, 4061 based on Foata normal form. 52/29934 useless extension candidates. Maximal degree in co-relation 133935. Up to 13111 conditions per place. [2023-08-31 20:32:24,587 INFO L137 encePairwiseOnDemand]: 369/410 looper letters, 1840 selfloop transitions, 236 changer transitions 4/2134 dead transitions. [2023-08-31 20:32:24,587 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 468 places, 2134 transitions, 34114 flow [2023-08-31 20:32:24,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-08-31 20:32:24,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-08-31 20:32:24,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2735 transitions. [2023-08-31 20:32:24,590 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5131332082551595 [2023-08-31 20:32:24,590 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2735 transitions. [2023-08-31 20:32:24,590 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2735 transitions. [2023-08-31 20:32:24,590 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:32:24,590 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2735 transitions. [2023-08-31 20:32:24,592 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 210.3846153846154) internal successors, (2735), 13 states have internal predecessors, (2735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:32:24,594 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 410.0) internal successors, (5740), 14 states have internal predecessors, (5740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:32:24,595 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 410.0) internal successors, (5740), 14 states have internal predecessors, (5740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:32:24,595 INFO L175 Difference]: Start difference. First operand has 456 places, 1771 transitions, 27626 flow. Second operand 13 states and 2735 transitions. [2023-08-31 20:32:24,595 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 468 places, 2134 transitions, 34114 flow [2023-08-31 20:32:26,888 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 463 places, 2134 transitions, 33648 flow, removed 136 selfloop flow, removed 5 redundant places. [2023-08-31 20:32:26,913 INFO L231 Difference]: Finished difference. Result has 468 places, 1785 transitions, 28138 flow [2023-08-31 20:32:26,913 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=27180, PETRI_DIFFERENCE_MINUEND_PLACES=451, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1771, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=224, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1538, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=28138, PETRI_PLACES=468, PETRI_TRANSITIONS=1785} [2023-08-31 20:32:26,914 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 334 predicate places. [2023-08-31 20:32:26,914 INFO L495 AbstractCegarLoop]: Abstraction has has 468 places, 1785 transitions, 28138 flow [2023-08-31 20:32:26,914 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 168.0909090909091) internal successors, (1849), 11 states have internal predecessors, (1849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:32:26,914 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:32:26,914 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:32:26,914 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-08-31 20:32:26,914 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-31 20:32:26,914 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:32:26,914 INFO L85 PathProgramCache]: Analyzing trace with hash 1239595030, now seen corresponding path program 15 times [2023-08-31 20:32:26,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:32:26,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178981654] [2023-08-31 20:32:26,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:32:26,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:32:26,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:32:27,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:32:27,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:32:27,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178981654] [2023-08-31 20:32:27,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1178981654] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:32:27,248 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:32:27,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-31 20:32:27,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513034315] [2023-08-31 20:32:27,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:32:27,248 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-31 20:32:27,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:32:27,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-31 20:32:27,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2023-08-31 20:32:28,246 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 410 [2023-08-31 20:32:28,247 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 468 places, 1785 transitions, 28138 flow. Second operand has 11 states, 11 states have (on average 168.0909090909091) internal successors, (1849), 11 states have internal predecessors, (1849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:32:28,247 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:32:28,247 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 410 [2023-08-31 20:32:28,247 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:32:38,946 INFO L130 PetriNetUnfolder]: 13180/30268 cut-off events. [2023-08-31 20:32:38,946 INFO L131 PetriNetUnfolder]: For 243490/244408 co-relation queries the response was YES. [2023-08-31 20:32:39,282 INFO L83 FinitePrefix]: Finished finitePrefix Result has 136451 conditions, 30268 events. 13180/30268 cut-off events. For 243490/244408 co-relation queries the response was YES. Maximal size of possible extension queue 346. Compared 265235 event pairs, 7729 based on Foata normal form. 102/29752 useless extension candidates. Maximal degree in co-relation 136300. Up to 15935 conditions per place. [2023-08-31 20:32:39,366 INFO L137 encePairwiseOnDemand]: 370/410 looper letters, 1212 selfloop transitions, 718 changer transitions 2/1986 dead transitions. [2023-08-31 20:32:39,366 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 477 places, 1986 transitions, 33775 flow [2023-08-31 20:32:39,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-31 20:32:39,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-31 20:32:39,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1996 transitions. [2023-08-31 20:32:39,368 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4868292682926829 [2023-08-31 20:32:39,368 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1996 transitions. [2023-08-31 20:32:39,368 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1996 transitions. [2023-08-31 20:32:39,368 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:32:39,368 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1996 transitions. [2023-08-31 20:32:39,370 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 199.6) internal successors, (1996), 10 states have internal predecessors, (1996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:32:39,372 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 410.0) internal successors, (4510), 11 states have internal predecessors, (4510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:32:39,372 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 410.0) internal successors, (4510), 11 states have internal predecessors, (4510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:32:39,372 INFO L175 Difference]: Start difference. First operand has 468 places, 1785 transitions, 28138 flow. Second operand 10 states and 1996 transitions. [2023-08-31 20:32:39,372 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 477 places, 1986 transitions, 33775 flow [2023-08-31 20:32:41,825 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 473 places, 1986 transitions, 33395 flow, removed 126 selfloop flow, removed 4 redundant places. [2023-08-31 20:32:41,849 INFO L231 Difference]: Finished difference. Result has 477 places, 1804 transitions, 29769 flow [2023-08-31 20:32:41,850 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=27758, PETRI_DIFFERENCE_MINUEND_PLACES=464, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1785, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=701, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1071, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=29769, PETRI_PLACES=477, PETRI_TRANSITIONS=1804} [2023-08-31 20:32:41,850 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 343 predicate places. [2023-08-31 20:32:41,850 INFO L495 AbstractCegarLoop]: Abstraction has has 477 places, 1804 transitions, 29769 flow [2023-08-31 20:32:41,850 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 168.0909090909091) internal successors, (1849), 11 states have internal predecessors, (1849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:32:41,850 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:32:41,850 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:32:41,850 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-08-31 20:32:41,850 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-31 20:32:41,851 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:32:41,851 INFO L85 PathProgramCache]: Analyzing trace with hash -857310106, now seen corresponding path program 16 times [2023-08-31 20:32:41,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:32:41,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283398104] [2023-08-31 20:32:41,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:32:41,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:32:41,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:32:42,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:32:42,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:32:42,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283398104] [2023-08-31 20:32:42,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [283398104] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:32:42,071 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:32:42,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-31 20:32:42,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870111106] [2023-08-31 20:32:42,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:32:42,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-31 20:32:42,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:32:42,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-31 20:32:42,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2023-08-31 20:32:43,198 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 410 [2023-08-31 20:32:43,199 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 477 places, 1804 transitions, 29769 flow. Second operand has 11 states, 11 states have (on average 168.0909090909091) internal successors, (1849), 11 states have internal predecessors, (1849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:32:43,199 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:32:43,199 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 410 [2023-08-31 20:32:43,199 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:32:54,150 INFO L130 PetriNetUnfolder]: 13209/30334 cut-off events. [2023-08-31 20:32:54,150 INFO L131 PetriNetUnfolder]: For 259561/260479 co-relation queries the response was YES. [2023-08-31 20:32:54,521 INFO L83 FinitePrefix]: Finished finitePrefix Result has 138955 conditions, 30334 events. 13209/30334 cut-off events. For 259561/260479 co-relation queries the response was YES. Maximal size of possible extension queue 346. Compared 265771 event pairs, 7790 based on Foata normal form. 82/29799 useless extension candidates. Maximal degree in co-relation 138800. Up to 16173 conditions per place. [2023-08-31 20:32:54,614 INFO L137 encePairwiseOnDemand]: 370/410 looper letters, 1194 selfloop transitions, 706 changer transitions 2/1956 dead transitions. [2023-08-31 20:32:54,615 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 487 places, 1956 transitions, 34891 flow [2023-08-31 20:32:54,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-31 20:32:54,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-31 20:32:54,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 2113 transitions. [2023-08-31 20:32:54,617 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46851441241685143 [2023-08-31 20:32:54,617 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 2113 transitions. [2023-08-31 20:32:54,617 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 2113 transitions. [2023-08-31 20:32:54,618 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:32:54,618 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 2113 transitions. [2023-08-31 20:32:54,620 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 192.0909090909091) internal successors, (2113), 11 states have internal predecessors, (2113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:32:54,621 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 410.0) internal successors, (4920), 12 states have internal predecessors, (4920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:32:54,622 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 410.0) internal successors, (4920), 12 states have internal predecessors, (4920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:32:54,622 INFO L175 Difference]: Start difference. First operand has 477 places, 1804 transitions, 29769 flow. Second operand 11 states and 2113 transitions. [2023-08-31 20:32:54,622 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 487 places, 1956 transitions, 34891 flow [2023-08-31 20:32:57,406 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 483 places, 1956 transitions, 33868 flow, removed 149 selfloop flow, removed 4 redundant places. [2023-08-31 20:32:57,429 INFO L231 Difference]: Finished difference. Result has 489 places, 1821 transitions, 30737 flow [2023-08-31 20:32:57,430 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=28763, PETRI_DIFFERENCE_MINUEND_PLACES=473, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1804, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=691, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=30737, PETRI_PLACES=489, PETRI_TRANSITIONS=1821} [2023-08-31 20:32:57,431 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 355 predicate places. [2023-08-31 20:32:57,431 INFO L495 AbstractCegarLoop]: Abstraction has has 489 places, 1821 transitions, 30737 flow [2023-08-31 20:32:57,431 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 168.0909090909091) internal successors, (1849), 11 states have internal predecessors, (1849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:32:57,431 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:32:57,431 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:32:57,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-08-31 20:32:57,431 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-31 20:32:57,432 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:32:57,432 INFO L85 PathProgramCache]: Analyzing trace with hash -520373896, now seen corresponding path program 17 times [2023-08-31 20:32:57,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:32:57,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066532919] [2023-08-31 20:32:57,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:32:57,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:32:57,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:32:57,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:32:57,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:32:57,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066532919] [2023-08-31 20:32:57,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2066532919] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:32:57,653 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:32:57,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-31 20:32:57,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761530795] [2023-08-31 20:32:57,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:32:57,654 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-31 20:32:57,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:32:57,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-31 20:32:57,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2023-08-31 20:32:58,555 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 410 [2023-08-31 20:32:58,556 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 489 places, 1821 transitions, 30737 flow. Second operand has 11 states, 11 states have (on average 168.0909090909091) internal successors, (1849), 11 states have internal predecessors, (1849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:32:58,556 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:32:58,556 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 410 [2023-08-31 20:32:58,556 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:33:09,657 INFO L130 PetriNetUnfolder]: 13192/30289 cut-off events. [2023-08-31 20:33:09,657 INFO L131 PetriNetUnfolder]: For 263816/264731 co-relation queries the response was YES. [2023-08-31 20:33:10,015 INFO L83 FinitePrefix]: Finished finitePrefix Result has 139421 conditions, 30289 events. 13192/30289 cut-off events. For 263816/264731 co-relation queries the response was YES. Maximal size of possible extension queue 346. Compared 265297 event pairs, 7663 based on Foata normal form. 82/29754 useless extension candidates. Maximal degree in co-relation 139260. Up to 16062 conditions per place. [2023-08-31 20:33:10,098 INFO L137 encePairwiseOnDemand]: 370/410 looper letters, 1225 selfloop transitions, 713 changer transitions 2/1994 dead transitions. [2023-08-31 20:33:10,098 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 498 places, 1994 transitions, 36164 flow [2023-08-31 20:33:10,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-31 20:33:10,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-31 20:33:10,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1959 transitions. [2023-08-31 20:33:10,100 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47780487804878047 [2023-08-31 20:33:10,100 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1959 transitions. [2023-08-31 20:33:10,100 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1959 transitions. [2023-08-31 20:33:10,100 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:33:10,100 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1959 transitions. [2023-08-31 20:33:10,102 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 195.9) internal successors, (1959), 10 states have internal predecessors, (1959), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:33:10,103 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 410.0) internal successors, (4510), 11 states have internal predecessors, (4510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:33:10,104 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 410.0) internal successors, (4510), 11 states have internal predecessors, (4510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:33:10,104 INFO L175 Difference]: Start difference. First operand has 489 places, 1821 transitions, 30737 flow. Second operand 10 states and 1959 transitions. [2023-08-31 20:33:10,104 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 498 places, 1994 transitions, 36164 flow [2023-08-31 20:33:12,897 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 494 places, 1994 transitions, 35123 flow, removed 170 selfloop flow, removed 4 redundant places. [2023-08-31 20:33:12,921 INFO L231 Difference]: Finished difference. Result has 498 places, 1840 transitions, 31789 flow [2023-08-31 20:33:12,922 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=29738, PETRI_DIFFERENCE_MINUEND_PLACES=485, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1821, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=695, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=31789, PETRI_PLACES=498, PETRI_TRANSITIONS=1840} [2023-08-31 20:33:12,922 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 364 predicate places. [2023-08-31 20:33:12,922 INFO L495 AbstractCegarLoop]: Abstraction has has 498 places, 1840 transitions, 31789 flow [2023-08-31 20:33:12,923 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 168.0909090909091) internal successors, (1849), 11 states have internal predecessors, (1849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:33:12,923 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:33:12,923 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:33:12,923 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-08-31 20:33:12,923 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-31 20:33:12,923 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:33:12,923 INFO L85 PathProgramCache]: Analyzing trace with hash 902658820, now seen corresponding path program 18 times [2023-08-31 20:33:12,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:33:12,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241248655] [2023-08-31 20:33:12,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:33:12,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:33:12,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:33:13,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:33:13,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:33:13,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241248655] [2023-08-31 20:33:13,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [241248655] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:33:13,149 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:33:13,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-31 20:33:13,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158418993] [2023-08-31 20:33:13,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:33:13,149 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-31 20:33:13,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:33:13,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-31 20:33:13,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2023-08-31 20:33:14,141 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 410 [2023-08-31 20:33:14,143 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 498 places, 1840 transitions, 31789 flow. Second operand has 11 states, 11 states have (on average 168.0909090909091) internal successors, (1849), 11 states have internal predecessors, (1849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:33:14,143 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:33:14,143 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 410 [2023-08-31 20:33:14,143 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:33:25,795 INFO L130 PetriNetUnfolder]: 13178/30377 cut-off events. [2023-08-31 20:33:25,796 INFO L131 PetriNetUnfolder]: For 268628/269537 co-relation queries the response was YES. [2023-08-31 20:33:26,177 INFO L83 FinitePrefix]: Finished finitePrefix Result has 140337 conditions, 30377 events. 13178/30377 cut-off events. For 268628/269537 co-relation queries the response was YES. Maximal size of possible extension queue 347. Compared 267724 event pairs, 7082 based on Foata normal form. 96/29860 useless extension candidates. Maximal degree in co-relation 140173. Up to 16096 conditions per place. [2023-08-31 20:33:26,259 INFO L137 encePairwiseOnDemand]: 370/410 looper letters, 1228 selfloop transitions, 719 changer transitions 2/2003 dead transitions. [2023-08-31 20:33:26,259 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 508 places, 2003 transitions, 36910 flow [2023-08-31 20:33:26,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-31 20:33:26,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-31 20:33:26,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 2152 transitions. [2023-08-31 20:33:26,261 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4771618625277162 [2023-08-31 20:33:26,261 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 2152 transitions. [2023-08-31 20:33:26,261 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 2152 transitions. [2023-08-31 20:33:26,262 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:33:26,262 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 2152 transitions. [2023-08-31 20:33:26,263 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 195.63636363636363) internal successors, (2152), 11 states have internal predecessors, (2152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:33:26,265 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 410.0) internal successors, (4920), 12 states have internal predecessors, (4920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:33:26,265 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 410.0) internal successors, (4920), 12 states have internal predecessors, (4920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:33:26,265 INFO L175 Difference]: Start difference. First operand has 498 places, 1840 transitions, 31789 flow. Second operand 11 states and 2152 transitions. [2023-08-31 20:33:26,265 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 508 places, 2003 transitions, 36910 flow [2023-08-31 20:33:29,239 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 504 places, 2003 transitions, 35790 flow, removed 200 selfloop flow, removed 4 redundant places. [2023-08-31 20:33:29,263 INFO L231 Difference]: Finished difference. Result has 508 places, 1851 transitions, 32495 flow [2023-08-31 20:33:29,264 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=30695, PETRI_DIFFERENCE_MINUEND_PLACES=494, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1840, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=709, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=32495, PETRI_PLACES=508, PETRI_TRANSITIONS=1851} [2023-08-31 20:33:29,264 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 374 predicate places. [2023-08-31 20:33:29,264 INFO L495 AbstractCegarLoop]: Abstraction has has 508 places, 1851 transitions, 32495 flow [2023-08-31 20:33:29,264 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 168.0909090909091) internal successors, (1849), 11 states have internal predecessors, (1849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:33:29,264 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:33:29,264 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:33:29,264 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-08-31 20:33:29,265 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-31 20:33:29,265 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:33:29,265 INFO L85 PathProgramCache]: Analyzing trace with hash -1479949306, now seen corresponding path program 19 times [2023-08-31 20:33:29,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:33:29,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502572807] [2023-08-31 20:33:29,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:33:29,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:33:29,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:33:29,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:33:29,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:33:29,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502572807] [2023-08-31 20:33:29,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1502572807] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:33:29,476 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:33:29,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-31 20:33:29,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555493989] [2023-08-31 20:33:29,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:33:29,477 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-31 20:33:29,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:33:29,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-31 20:33:29,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-08-31 20:33:30,448 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 410 [2023-08-31 20:33:30,449 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 508 places, 1851 transitions, 32495 flow. Second operand has 11 states, 11 states have (on average 168.0909090909091) internal successors, (1849), 11 states have internal predecessors, (1849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:33:30,449 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:33:30,449 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 410 [2023-08-31 20:33:30,449 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:33:44,595 INFO L130 PetriNetUnfolder]: 15670/36102 cut-off events. [2023-08-31 20:33:44,595 INFO L131 PetriNetUnfolder]: For 352860/353803 co-relation queries the response was YES. [2023-08-31 20:33:45,101 INFO L83 FinitePrefix]: Finished finitePrefix Result has 168909 conditions, 36102 events. 15670/36102 cut-off events. For 352860/353803 co-relation queries the response was YES. Maximal size of possible extension queue 416. Compared 329746 event pairs, 5822 based on Foata normal form. 54/35442 useless extension candidates. Maximal degree in co-relation 168741. Up to 10279 conditions per place. [2023-08-31 20:33:45,200 INFO L137 encePairwiseOnDemand]: 379/410 looper letters, 2442 selfloop transitions, 155 changer transitions 0/2651 dead transitions. [2023-08-31 20:33:45,200 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 519 places, 2651 transitions, 47019 flow [2023-08-31 20:33:45,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-31 20:33:45,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-31 20:33:45,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 2653 transitions. [2023-08-31 20:33:45,202 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5392276422764227 [2023-08-31 20:33:45,202 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 2653 transitions. [2023-08-31 20:33:45,202 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 2653 transitions. [2023-08-31 20:33:45,203 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:33:45,203 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 2653 transitions. [2023-08-31 20:33:45,204 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 221.08333333333334) internal successors, (2653), 12 states have internal predecessors, (2653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:33:45,207 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 410.0) internal successors, (5330), 13 states have internal predecessors, (5330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:33:45,207 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 410.0) internal successors, (5330), 13 states have internal predecessors, (5330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:33:45,207 INFO L175 Difference]: Start difference. First operand has 508 places, 1851 transitions, 32495 flow. Second operand 12 states and 2653 transitions. [2023-08-31 20:33:45,207 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 519 places, 2651 transitions, 47019 flow [2023-08-31 20:33:48,779 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 515 places, 2651 transitions, 46509 flow, removed 90 selfloop flow, removed 4 redundant places. [2023-08-31 20:33:48,807 INFO L231 Difference]: Finished difference. Result has 520 places, 1965 transitions, 35497 flow [2023-08-31 20:33:48,807 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=32034, PETRI_DIFFERENCE_MINUEND_PLACES=504, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1851, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1701, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=35497, PETRI_PLACES=520, PETRI_TRANSITIONS=1965} [2023-08-31 20:33:48,808 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 386 predicate places. [2023-08-31 20:33:48,808 INFO L495 AbstractCegarLoop]: Abstraction has has 520 places, 1965 transitions, 35497 flow [2023-08-31 20:33:48,808 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 168.0909090909091) internal successors, (1849), 11 states have internal predecessors, (1849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:33:48,808 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:33:48,808 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:33:48,808 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-08-31 20:33:48,808 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-31 20:33:48,809 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:33:48,809 INFO L85 PathProgramCache]: Analyzing trace with hash -1936191452, now seen corresponding path program 20 times [2023-08-31 20:33:48,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:33:48,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541750375] [2023-08-31 20:33:48,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:33:48,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:33:48,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:33:49,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:33:49,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:33:49,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541750375] [2023-08-31 20:33:49,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [541750375] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:33:49,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:33:49,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-31 20:33:49,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038710239] [2023-08-31 20:33:49,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:33:49,028 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-31 20:33:49,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:33:49,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-31 20:33:49,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-08-31 20:33:49,912 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 410 [2023-08-31 20:33:49,913 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 520 places, 1965 transitions, 35497 flow. Second operand has 11 states, 11 states have (on average 168.0909090909091) internal successors, (1849), 11 states have internal predecessors, (1849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:33:49,913 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:33:49,913 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 410 [2023-08-31 20:33:49,913 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:34:05,053 INFO L130 PetriNetUnfolder]: 15645/35922 cut-off events. [2023-08-31 20:34:05,054 INFO L131 PetriNetUnfolder]: For 378371/379186 co-relation queries the response was YES. [2023-08-31 20:34:05,578 INFO L83 FinitePrefix]: Finished finitePrefix Result has 169957 conditions, 35922 events. 15645/35922 cut-off events. For 378371/379186 co-relation queries the response was YES. Maximal size of possible extension queue 416. Compared 327420 event pairs, 6022 based on Foata normal form. 61/35236 useless extension candidates. Maximal degree in co-relation 169784. Up to 18845 conditions per place. [2023-08-31 20:34:05,676 INFO L137 encePairwiseOnDemand]: 378/410 looper letters, 2303 selfloop transitions, 178 changer transitions 4/2539 dead transitions. [2023-08-31 20:34:05,676 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 531 places, 2539 transitions, 45270 flow [2023-08-31 20:34:05,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-31 20:34:05,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-31 20:34:05,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 2683 transitions. [2023-08-31 20:34:05,679 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5453252032520325 [2023-08-31 20:34:05,679 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 2683 transitions. [2023-08-31 20:34:05,679 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 2683 transitions. [2023-08-31 20:34:05,679 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:34:05,679 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 2683 transitions. [2023-08-31 20:34:05,681 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 223.58333333333334) internal successors, (2683), 12 states have internal predecessors, (2683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:34:05,683 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 410.0) internal successors, (5330), 13 states have internal predecessors, (5330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:34:05,683 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 410.0) internal successors, (5330), 13 states have internal predecessors, (5330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:34:05,684 INFO L175 Difference]: Start difference. First operand has 520 places, 1965 transitions, 35497 flow. Second operand 12 states and 2683 transitions. [2023-08-31 20:34:05,684 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 531 places, 2539 transitions, 45270 flow [2023-08-31 20:34:09,685 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 526 places, 2539 transitions, 44230 flow, removed 487 selfloop flow, removed 5 redundant places. [2023-08-31 20:34:09,712 INFO L231 Difference]: Finished difference. Result has 531 places, 1992 transitions, 35997 flow [2023-08-31 20:34:09,713 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=34457, PETRI_DIFFERENCE_MINUEND_PLACES=515, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1965, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=154, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1790, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=35997, PETRI_PLACES=531, PETRI_TRANSITIONS=1992} [2023-08-31 20:34:09,713 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 397 predicate places. [2023-08-31 20:34:09,713 INFO L495 AbstractCegarLoop]: Abstraction has has 531 places, 1992 transitions, 35997 flow [2023-08-31 20:34:09,714 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 168.0909090909091) internal successors, (1849), 11 states have internal predecessors, (1849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:34:09,714 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:34:09,714 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:34:09,714 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-08-31 20:34:09,714 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-31 20:34:09,714 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:34:09,715 INFO L85 PathProgramCache]: Analyzing trace with hash -617506900, now seen corresponding path program 21 times [2023-08-31 20:34:09,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:34:09,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790837637] [2023-08-31 20:34:09,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:34:09,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:34:09,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:34:09,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:34:09,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:34:09,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790837637] [2023-08-31 20:34:09,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1790837637] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:34:09,936 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:34:09,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-31 20:34:09,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934676083] [2023-08-31 20:34:09,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:34:09,936 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-31 20:34:09,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:34:09,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-31 20:34:09,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-08-31 20:34:10,837 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 410 [2023-08-31 20:34:10,838 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 531 places, 1992 transitions, 35997 flow. Second operand has 11 states, 11 states have (on average 168.0909090909091) internal successors, (1849), 11 states have internal predecessors, (1849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:34:10,838 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:34:10,838 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 410 [2023-08-31 20:34:10,838 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:34:25,992 INFO L130 PetriNetUnfolder]: 15708/36106 cut-off events. [2023-08-31 20:34:25,993 INFO L131 PetriNetUnfolder]: For 384559/385517 co-relation queries the response was YES. [2023-08-31 20:34:26,538 INFO L83 FinitePrefix]: Finished finitePrefix Result has 171024 conditions, 36106 events. 15708/36106 cut-off events. For 384559/385517 co-relation queries the response was YES. Maximal size of possible extension queue 413. Compared 327794 event pairs, 7264 based on Foata normal form. 59/35449 useless extension candidates. Maximal degree in co-relation 170850. Up to 10248 conditions per place. [2023-08-31 20:34:26,637 INFO L137 encePairwiseOnDemand]: 371/410 looper letters, 2051 selfloop transitions, 275 changer transitions 0/2380 dead transitions. [2023-08-31 20:34:26,638 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 541 places, 2380 transitions, 44643 flow [2023-08-31 20:34:26,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-31 20:34:26,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-31 20:34:26,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 2296 transitions. [2023-08-31 20:34:26,642 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.509090909090909 [2023-08-31 20:34:26,642 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 2296 transitions. [2023-08-31 20:34:26,642 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 2296 transitions. [2023-08-31 20:34:26,642 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:34:26,643 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 2296 transitions. [2023-08-31 20:34:26,644 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 208.72727272727272) internal successors, (2296), 11 states have internal predecessors, (2296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:34:26,646 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 410.0) internal successors, (4920), 12 states have internal predecessors, (4920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:34:26,646 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 410.0) internal successors, (4920), 12 states have internal predecessors, (4920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:34:26,646 INFO L175 Difference]: Start difference. First operand has 531 places, 1992 transitions, 35997 flow. Second operand 11 states and 2296 transitions. [2023-08-31 20:34:26,646 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 541 places, 2380 transitions, 44643 flow [2023-08-31 20:34:30,551 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 535 places, 2380 transitions, 43625 flow, removed 436 selfloop flow, removed 6 redundant places. [2023-08-31 20:34:30,578 INFO L231 Difference]: Finished difference. Result has 541 places, 2025 transitions, 37105 flow [2023-08-31 20:34:30,579 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=34979, PETRI_DIFFERENCE_MINUEND_PLACES=525, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1992, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=244, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1723, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=37105, PETRI_PLACES=541, PETRI_TRANSITIONS=2025} [2023-08-31 20:34:30,579 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 407 predicate places. [2023-08-31 20:34:30,579 INFO L495 AbstractCegarLoop]: Abstraction has has 541 places, 2025 transitions, 37105 flow [2023-08-31 20:34:30,579 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 168.0909090909091) internal successors, (1849), 11 states have internal predecessors, (1849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:34:30,579 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:34:30,580 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:34:30,580 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-08-31 20:34:30,580 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-31 20:34:30,580 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:34:30,580 INFO L85 PathProgramCache]: Analyzing trace with hash 1716308339, now seen corresponding path program 5 times [2023-08-31 20:34:30,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:34:30,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99339076] [2023-08-31 20:34:30,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:34:30,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:34:30,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:34:30,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:34:30,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:34:30,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99339076] [2023-08-31 20:34:30,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [99339076] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:34:30,772 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:34:30,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-31 20:34:30,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327440402] [2023-08-31 20:34:30,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:34:30,773 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-31 20:34:30,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:34:30,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-31 20:34:30,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2023-08-31 20:34:31,513 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 410 [2023-08-31 20:34:31,514 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 541 places, 2025 transitions, 37105 flow. Second operand has 11 states, 11 states have (on average 168.0909090909091) internal successors, (1849), 11 states have internal predecessors, (1849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:34:31,514 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:34:31,514 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 410 [2023-08-31 20:34:31,514 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:34:46,914 INFO L130 PetriNetUnfolder]: 15130/35075 cut-off events. [2023-08-31 20:34:46,914 INFO L131 PetriNetUnfolder]: For 372411/373903 co-relation queries the response was YES. [2023-08-31 20:34:47,425 INFO L83 FinitePrefix]: Finished finitePrefix Result has 166537 conditions, 35075 events. 15130/35075 cut-off events. For 372411/373903 co-relation queries the response was YES. Maximal size of possible extension queue 412. Compared 321502 event pairs, 5816 based on Foata normal form. 77/34174 useless extension candidates. Maximal degree in co-relation 166357. Up to 10128 conditions per place. [2023-08-31 20:34:47,521 INFO L137 encePairwiseOnDemand]: 371/410 looper letters, 2446 selfloop transitions, 206 changer transitions 0/2731 dead transitions. [2023-08-31 20:34:47,521 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 556 places, 2731 transitions, 49403 flow [2023-08-31 20:34:47,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-08-31 20:34:47,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-08-31 20:34:47,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 3356 transitions. [2023-08-31 20:34:47,523 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5115853658536585 [2023-08-31 20:34:47,523 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 3356 transitions. [2023-08-31 20:34:47,523 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 3356 transitions. [2023-08-31 20:34:47,523 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:34:47,523 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 3356 transitions. [2023-08-31 20:34:47,525 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 209.75) internal successors, (3356), 16 states have internal predecessors, (3356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:34:47,528 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 410.0) internal successors, (6970), 17 states have internal predecessors, (6970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:34:47,528 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 410.0) internal successors, (6970), 17 states have internal predecessors, (6970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:34:47,528 INFO L175 Difference]: Start difference. First operand has 541 places, 2025 transitions, 37105 flow. Second operand 16 states and 3356 transitions. [2023-08-31 20:34:47,528 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 556 places, 2731 transitions, 49403 flow [2023-08-31 20:34:51,684 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 553 places, 2731 transitions, 48001 flow, removed 663 selfloop flow, removed 3 redundant places. [2023-08-31 20:34:51,714 INFO L231 Difference]: Finished difference. Result has 563 places, 2182 transitions, 39673 flow [2023-08-31 20:34:51,715 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=36137, PETRI_DIFFERENCE_MINUEND_PLACES=538, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2025, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=52, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1830, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=39673, PETRI_PLACES=563, PETRI_TRANSITIONS=2182} [2023-08-31 20:34:51,715 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 429 predicate places. [2023-08-31 20:34:51,715 INFO L495 AbstractCegarLoop]: Abstraction has has 563 places, 2182 transitions, 39673 flow [2023-08-31 20:34:51,716 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 168.0909090909091) internal successors, (1849), 11 states have internal predecessors, (1849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:34:51,716 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:34:51,716 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:34:51,716 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-08-31 20:34:51,716 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-31 20:34:51,716 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:34:51,716 INFO L85 PathProgramCache]: Analyzing trace with hash -1819479998, now seen corresponding path program 22 times [2023-08-31 20:34:51,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:34:51,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520928975] [2023-08-31 20:34:51,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:34:51,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:34:51,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:34:51,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:34:51,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:34:51,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520928975] [2023-08-31 20:34:51,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1520928975] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:34:51,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:34:51,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-31 20:34:51,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716243530] [2023-08-31 20:34:51,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:34:51,931 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-31 20:34:51,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:34:51,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-31 20:34:51,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-08-31 20:34:52,679 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 410 [2023-08-31 20:34:52,680 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 563 places, 2182 transitions, 39673 flow. Second operand has 11 states, 11 states have (on average 168.0909090909091) internal successors, (1849), 11 states have internal predecessors, (1849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:34:52,680 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:34:52,680 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 410 [2023-08-31 20:34:52,680 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:35:09,354 INFO L130 PetriNetUnfolder]: 15713/36239 cut-off events. [2023-08-31 20:35:09,354 INFO L131 PetriNetUnfolder]: For 404894/405939 co-relation queries the response was YES. [2023-08-31 20:35:09,965 INFO L83 FinitePrefix]: Finished finitePrefix Result has 173589 conditions, 36239 events. 15713/36239 cut-off events. For 404894/405939 co-relation queries the response was YES. Maximal size of possible extension queue 414. Compared 330542 event pairs, 6666 based on Foata normal form. 57/35582 useless extension candidates. Maximal degree in co-relation 173399. Up to 10317 conditions per place. [2023-08-31 20:35:10,067 INFO L137 encePairwiseOnDemand]: 371/410 looper letters, 2177 selfloop transitions, 287 changer transitions 0/2518 dead transitions. [2023-08-31 20:35:10,067 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 573 places, 2518 transitions, 46951 flow [2023-08-31 20:35:10,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-31 20:35:10,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-31 20:35:10,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 2373 transitions. [2023-08-31 20:35:10,069 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5261640798226164 [2023-08-31 20:35:10,069 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 2373 transitions. [2023-08-31 20:35:10,069 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 2373 transitions. [2023-08-31 20:35:10,070 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:35:10,070 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 2373 transitions. [2023-08-31 20:35:10,071 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 215.72727272727272) internal successors, (2373), 11 states have internal predecessors, (2373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:35:10,073 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 410.0) internal successors, (4920), 12 states have internal predecessors, (4920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:35:10,073 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 410.0) internal successors, (4920), 12 states have internal predecessors, (4920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:35:10,073 INFO L175 Difference]: Start difference. First operand has 563 places, 2182 transitions, 39673 flow. Second operand 11 states and 2373 transitions. [2023-08-31 20:35:10,073 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 573 places, 2518 transitions, 46951 flow [2023-08-31 20:35:14,193 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 569 places, 2518 transitions, 45776 flow, removed 517 selfloop flow, removed 4 redundant places. [2023-08-31 20:35:14,222 INFO L231 Difference]: Finished difference. Result has 574 places, 2190 transitions, 39663 flow [2023-08-31 20:35:14,223 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=38578, PETRI_DIFFERENCE_MINUEND_PLACES=559, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2182, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=279, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1896, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=39663, PETRI_PLACES=574, PETRI_TRANSITIONS=2190} [2023-08-31 20:35:14,223 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 440 predicate places. [2023-08-31 20:35:14,223 INFO L495 AbstractCegarLoop]: Abstraction has has 574 places, 2190 transitions, 39663 flow [2023-08-31 20:35:14,223 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 168.0909090909091) internal successors, (1849), 11 states have internal predecessors, (1849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:35:14,223 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:35:14,224 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:35:14,224 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-08-31 20:35:14,224 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-31 20:35:14,224 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:35:14,224 INFO L85 PathProgramCache]: Analyzing trace with hash -1475192138, now seen corresponding path program 23 times [2023-08-31 20:35:14,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:35:14,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174397928] [2023-08-31 20:35:14,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:35:14,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:35:14,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:35:14,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:35:14,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:35:14,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174397928] [2023-08-31 20:35:14,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174397928] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:35:14,431 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:35:14,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-31 20:35:14,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103306642] [2023-08-31 20:35:14,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:35:14,431 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-31 20:35:14,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:35:14,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-31 20:35:14,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2023-08-31 20:35:15,318 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 410 [2023-08-31 20:35:15,319 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 574 places, 2190 transitions, 39663 flow. Second operand has 11 states, 11 states have (on average 168.0909090909091) internal successors, (1849), 11 states have internal predecessors, (1849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:35:15,319 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:35:15,319 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 410 [2023-08-31 20:35:15,319 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:35:32,279 INFO L130 PetriNetUnfolder]: 15745/36518 cut-off events. [2023-08-31 20:35:32,279 INFO L131 PetriNetUnfolder]: For 410908/411943 co-relation queries the response was YES. [2023-08-31 20:35:32,913 INFO L83 FinitePrefix]: Finished finitePrefix Result has 174126 conditions, 36518 events. 15745/36518 cut-off events. For 410908/411943 co-relation queries the response was YES. Maximal size of possible extension queue 415. Compared 334620 event pairs, 7003 based on Foata normal form. 53/35871 useless extension candidates. Maximal degree in co-relation 173932. Up to 10407 conditions per place. [2023-08-31 20:35:33,015 INFO L137 encePairwiseOnDemand]: 371/410 looper letters, 2200 selfloop transitions, 300 changer transitions 0/2554 dead transitions. [2023-08-31 20:35:33,015 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 584 places, 2554 transitions, 47970 flow [2023-08-31 20:35:33,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-31 20:35:33,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-31 20:35:33,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 2322 transitions. [2023-08-31 20:35:33,017 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5148558758314856 [2023-08-31 20:35:33,017 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 2322 transitions. [2023-08-31 20:35:33,017 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 2322 transitions. [2023-08-31 20:35:33,017 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:35:33,017 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 2322 transitions. [2023-08-31 20:35:33,019 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 211.0909090909091) internal successors, (2322), 11 states have internal predecessors, (2322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:35:33,021 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 410.0) internal successors, (4920), 12 states have internal predecessors, (4920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:35:33,021 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 410.0) internal successors, (4920), 12 states have internal predecessors, (4920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:35:33,021 INFO L175 Difference]: Start difference. First operand has 574 places, 2190 transitions, 39663 flow. Second operand 11 states and 2322 transitions. [2023-08-31 20:35:33,021 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 584 places, 2554 transitions, 47970 flow [2023-08-31 20:35:37,735 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 579 places, 2554 transitions, 46791 flow, removed 387 selfloop flow, removed 5 redundant places. [2023-08-31 20:35:37,764 INFO L231 Difference]: Finished difference. Result has 583 places, 2211 transitions, 40119 flow [2023-08-31 20:35:37,765 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=38562, PETRI_DIFFERENCE_MINUEND_PLACES=569, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2190, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=280, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1894, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=40119, PETRI_PLACES=583, PETRI_TRANSITIONS=2211} [2023-08-31 20:35:37,766 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 449 predicate places. [2023-08-31 20:35:37,766 INFO L495 AbstractCegarLoop]: Abstraction has has 583 places, 2211 transitions, 40119 flow [2023-08-31 20:35:37,766 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 168.0909090909091) internal successors, (1849), 11 states have internal predecessors, (1849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:35:37,766 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:35:37,766 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:35:37,766 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-08-31 20:35:37,766 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-31 20:35:37,767 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:35:37,767 INFO L85 PathProgramCache]: Analyzing trace with hash -1811959088, now seen corresponding path program 24 times [2023-08-31 20:35:37,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:35:37,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455425034] [2023-08-31 20:35:37,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:35:37,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:35:37,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:35:38,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:35:38,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:35:38,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455425034] [2023-08-31 20:35:38,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [455425034] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:35:38,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:35:38,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-31 20:35:38,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095532163] [2023-08-31 20:35:38,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:35:38,026 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-31 20:35:38,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:35:38,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-31 20:35:38,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-08-31 20:35:38,993 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 410 [2023-08-31 20:35:38,994 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 583 places, 2211 transitions, 40119 flow. Second operand has 11 states, 11 states have (on average 168.0909090909091) internal successors, (1849), 11 states have internal predecessors, (1849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:35:38,994 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:35:38,994 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 410 [2023-08-31 20:35:38,995 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:35:55,340 INFO L130 PetriNetUnfolder]: 15728/36350 cut-off events. [2023-08-31 20:35:55,341 INFO L131 PetriNetUnfolder]: For 410963/411996 co-relation queries the response was YES. [2023-08-31 20:35:55,976 INFO L83 FinitePrefix]: Finished finitePrefix Result has 172936 conditions, 36350 events. 15728/36350 cut-off events. For 410963/411996 co-relation queries the response was YES. Maximal size of possible extension queue 415. Compared 331393 event pairs, 7592 based on Foata normal form. 55/35701 useless extension candidates. Maximal degree in co-relation 172739. Up to 10334 conditions per place. [2023-08-31 20:35:56,077 INFO L137 encePairwiseOnDemand]: 371/410 looper letters, 2207 selfloop transitions, 303 changer transitions 0/2564 dead transitions. [2023-08-31 20:35:56,077 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 594 places, 2564 transitions, 47693 flow [2023-08-31 20:35:56,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-31 20:35:56,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-31 20:35:56,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 2555 transitions. [2023-08-31 20:35:56,079 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5193089430894309 [2023-08-31 20:35:56,079 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 2555 transitions. [2023-08-31 20:35:56,079 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 2555 transitions. [2023-08-31 20:35:56,080 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:35:56,080 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 2555 transitions. [2023-08-31 20:35:56,082 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 212.91666666666666) internal successors, (2555), 12 states have internal predecessors, (2555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:35:56,084 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 410.0) internal successors, (5330), 13 states have internal predecessors, (5330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:35:56,084 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 410.0) internal successors, (5330), 13 states have internal predecessors, (5330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:35:56,084 INFO L175 Difference]: Start difference. First operand has 583 places, 2211 transitions, 40119 flow. Second operand 12 states and 2555 transitions. [2023-08-31 20:35:56,084 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 594 places, 2564 transitions, 47693 flow [2023-08-31 20:36:00,765 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 591 places, 2564 transitions, 47101 flow, removed 258 selfloop flow, removed 3 redundant places. [2023-08-31 20:36:00,795 INFO L231 Difference]: Finished difference. Result has 595 places, 2222 transitions, 40731 flow [2023-08-31 20:36:00,796 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=39575, PETRI_DIFFERENCE_MINUEND_PLACES=580, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2211, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=293, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1910, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=40731, PETRI_PLACES=595, PETRI_TRANSITIONS=2222} [2023-08-31 20:36:00,797 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 461 predicate places. [2023-08-31 20:36:00,798 INFO L495 AbstractCegarLoop]: Abstraction has has 595 places, 2222 transitions, 40731 flow [2023-08-31 20:36:00,798 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 168.0909090909091) internal successors, (1849), 11 states have internal predecessors, (1849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:36:00,798 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:36:00,798 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:36:00,798 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2023-08-31 20:36:00,798 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-31 20:36:00,798 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:36:00,799 INFO L85 PathProgramCache]: Analyzing trace with hash -1406213202, now seen corresponding path program 25 times [2023-08-31 20:36:00,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:36:00,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856755959] [2023-08-31 20:36:00,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:36:00,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:36:00,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:36:01,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:36:01,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:36:01,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856755959] [2023-08-31 20:36:01,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1856755959] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:36:01,006 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:36:01,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-31 20:36:01,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159411429] [2023-08-31 20:36:01,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:36:01,006 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-31 20:36:01,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:36:01,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-31 20:36:01,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-08-31 20:36:01,998 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 410 [2023-08-31 20:36:01,999 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 595 places, 2222 transitions, 40731 flow. Second operand has 11 states, 11 states have (on average 168.0909090909091) internal successors, (1849), 11 states have internal predecessors, (1849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:36:01,999 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:36:02,000 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 410 [2023-08-31 20:36:02,000 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:36:18,351 INFO L130 PetriNetUnfolder]: 15710/36292 cut-off events. [2023-08-31 20:36:18,351 INFO L131 PetriNetUnfolder]: For 411789/412841 co-relation queries the response was YES. [2023-08-31 20:36:18,992 INFO L83 FinitePrefix]: Finished finitePrefix Result has 172928 conditions, 36292 events. 15710/36292 cut-off events. For 411789/412841 co-relation queries the response was YES. Maximal size of possible extension queue 415. Compared 330650 event pairs, 8174 based on Foata normal form. 65/35648 useless extension candidates. Maximal degree in co-relation 172727. Up to 10327 conditions per place. [2023-08-31 20:36:19,099 INFO L137 encePairwiseOnDemand]: 379/410 looper letters, 2403 selfloop transitions, 177 changer transitions 0/2634 dead transitions. [2023-08-31 20:36:19,100 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 605 places, 2634 transitions, 49510 flow [2023-08-31 20:36:19,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-31 20:36:19,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-31 20:36:19,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 2383 transitions. [2023-08-31 20:36:19,102 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5283813747228382 [2023-08-31 20:36:19,102 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 2383 transitions. [2023-08-31 20:36:19,102 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 2383 transitions. [2023-08-31 20:36:19,102 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:36:19,102 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 2383 transitions. [2023-08-31 20:36:19,104 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 216.63636363636363) internal successors, (2383), 11 states have internal predecessors, (2383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:36:19,105 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 410.0) internal successors, (4920), 12 states have internal predecessors, (4920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:36:19,106 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 410.0) internal successors, (4920), 12 states have internal predecessors, (4920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:36:19,106 INFO L175 Difference]: Start difference. First operand has 595 places, 2222 transitions, 40731 flow. Second operand 11 states and 2383 transitions. [2023-08-31 20:36:19,106 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 605 places, 2634 transitions, 49510 flow [2023-08-31 20:36:23,812 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 599 places, 2634 transitions, 48997 flow, removed 112 selfloop flow, removed 6 redundant places. [2023-08-31 20:36:23,895 INFO L231 Difference]: Finished difference. Result has 604 places, 2236 transitions, 41328 flow [2023-08-31 20:36:23,896 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=40236, PETRI_DIFFERENCE_MINUEND_PLACES=589, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2222, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=164, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=2049, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=41328, PETRI_PLACES=604, PETRI_TRANSITIONS=2236} [2023-08-31 20:36:23,897 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 470 predicate places. [2023-08-31 20:36:23,897 INFO L495 AbstractCegarLoop]: Abstraction has has 604 places, 2236 transitions, 41328 flow [2023-08-31 20:36:23,897 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 168.0909090909091) internal successors, (1849), 11 states have internal predecessors, (1849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:36:23,897 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:36:23,897 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:36:23,897 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2023-08-31 20:36:23,897 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-31 20:36:23,898 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:36:23,898 INFO L85 PathProgramCache]: Analyzing trace with hash 1790044443, now seen corresponding path program 6 times [2023-08-31 20:36:23,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:36:23,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166803818] [2023-08-31 20:36:23,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:36:23,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:36:23,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:36:24,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:36:24,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:36:24,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166803818] [2023-08-31 20:36:24,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [166803818] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:36:24,085 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:36:24,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-31 20:36:24,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979633968] [2023-08-31 20:36:24,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:36:24,085 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-31 20:36:24,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:36:24,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-31 20:36:24,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2023-08-31 20:36:24,873 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 410 [2023-08-31 20:36:24,874 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 604 places, 2236 transitions, 41328 flow. Second operand has 11 states, 11 states have (on average 168.0909090909091) internal successors, (1849), 11 states have internal predecessors, (1849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:36:24,874 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:36:24,874 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 410 [2023-08-31 20:36:24,874 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:36:41,300 INFO L130 PetriNetUnfolder]: 15230/35241 cut-off events. [2023-08-31 20:36:41,300 INFO L131 PetriNetUnfolder]: For 413053/415017 co-relation queries the response was YES. [2023-08-31 20:36:41,891 INFO L83 FinitePrefix]: Finished finitePrefix Result has 170507 conditions, 35241 events. 15230/35241 cut-off events. For 413053/415017 co-relation queries the response was YES. Maximal size of possible extension queue 411. Compared 320506 event pairs, 7706 based on Foata normal form. 91/34321 useless extension candidates. Maximal degree in co-relation 170301. Up to 10174 conditions per place. [2023-08-31 20:36:41,990 INFO L137 encePairwiseOnDemand]: 371/410 looper letters, 2372 selfloop transitions, 222 changer transitions 0/2673 dead transitions. [2023-08-31 20:36:41,990 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 618 places, 2673 transitions, 50641 flow [2023-08-31 20:36:41,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-08-31 20:36:41,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-08-31 20:36:41,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 3093 transitions. [2023-08-31 20:36:41,993 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5029268292682927 [2023-08-31 20:36:41,993 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 3093 transitions. [2023-08-31 20:36:41,993 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 3093 transitions. [2023-08-31 20:36:41,993 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:36:41,994 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 3093 transitions. [2023-08-31 20:36:41,995 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 206.2) internal successors, (3093), 15 states have internal predecessors, (3093), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:36:41,998 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 410.0) internal successors, (6560), 16 states have internal predecessors, (6560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:36:41,998 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 410.0) internal successors, (6560), 16 states have internal predecessors, (6560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:36:41,998 INFO L175 Difference]: Start difference. First operand has 604 places, 2236 transitions, 41328 flow. Second operand 15 states and 3093 transitions. [2023-08-31 20:36:41,998 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 618 places, 2673 transitions, 50641 flow [2023-08-31 20:36:46,822 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 615 places, 2673 transitions, 49196 flow, removed 681 selfloop flow, removed 3 redundant places. [2023-08-31 20:36:46,852 INFO L231 Difference]: Finished difference. Result has 622 places, 2270 transitions, 41943 flow [2023-08-31 20:36:46,853 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=40409, PETRI_DIFFERENCE_MINUEND_PLACES=601, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2236, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=191, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=2025, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=41943, PETRI_PLACES=622, PETRI_TRANSITIONS=2270} [2023-08-31 20:36:46,853 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 488 predicate places. [2023-08-31 20:36:46,853 INFO L495 AbstractCegarLoop]: Abstraction has has 622 places, 2270 transitions, 41943 flow [2023-08-31 20:36:46,854 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 168.0909090909091) internal successors, (1849), 11 states have internal predecessors, (1849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:36:46,854 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:36:46,854 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:36:46,854 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2023-08-31 20:36:46,854 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-31 20:36:46,854 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:36:46,854 INFO L85 PathProgramCache]: Analyzing trace with hash -642709749, now seen corresponding path program 7 times [2023-08-31 20:36:46,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:36:46,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422215566] [2023-08-31 20:36:46,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:36:46,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:36:46,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:36:47,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:36:47,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:36:47,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422215566] [2023-08-31 20:36:47,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422215566] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:36:47,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:36:47,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-31 20:36:47,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49924146] [2023-08-31 20:36:47,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:36:47,047 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-31 20:36:47,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:36:47,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-31 20:36:47,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-08-31 20:36:47,812 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 410 [2023-08-31 20:36:47,813 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 622 places, 2270 transitions, 41943 flow. Second operand has 11 states, 11 states have (on average 168.0909090909091) internal successors, (1849), 11 states have internal predecessors, (1849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:36:47,813 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:36:47,813 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 410 [2023-08-31 20:36:47,813 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:37:04,170 INFO L130 PetriNetUnfolder]: 15213/35117 cut-off events. [2023-08-31 20:37:04,170 INFO L131 PetriNetUnfolder]: For 396700/398604 co-relation queries the response was YES. [2023-08-31 20:37:04,798 INFO L83 FinitePrefix]: Finished finitePrefix Result has 170499 conditions, 35117 events. 15213/35117 cut-off events. For 396700/398604 co-relation queries the response was YES. Maximal size of possible extension queue 410. Compared 320057 event pairs, 7677 based on Foata normal form. 88/34229 useless extension candidates. Maximal degree in co-relation 170287. Up to 10166 conditions per place. [2023-08-31 20:37:04,897 INFO L137 encePairwiseOnDemand]: 363/410 looper letters, 1389 selfloop transitions, 1207 changer transitions 0/2675 dead transitions. [2023-08-31 20:37:04,897 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 642 places, 2675 transitions, 50520 flow [2023-08-31 20:37:04,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-08-31 20:37:04,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2023-08-31 20:37:04,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 4171 transitions. [2023-08-31 20:37:04,900 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4844367015098722 [2023-08-31 20:37:04,900 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 4171 transitions. [2023-08-31 20:37:04,900 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 4171 transitions. [2023-08-31 20:37:04,900 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:37:04,901 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 4171 transitions. [2023-08-31 20:37:04,903 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 198.61904761904762) internal successors, (4171), 21 states have internal predecessors, (4171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:37:04,906 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 410.0) internal successors, (9020), 22 states have internal predecessors, (9020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:37:04,907 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 410.0) internal successors, (9020), 22 states have internal predecessors, (9020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:37:04,907 INFO L175 Difference]: Start difference. First operand has 622 places, 2270 transitions, 41943 flow. Second operand 21 states and 4171 transitions. [2023-08-31 20:37:04,907 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 642 places, 2675 transitions, 50520 flow [2023-08-31 20:37:10,304 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 618 places, 2675 transitions, 48798 flow, removed 643 selfloop flow, removed 24 redundant places. [2023-08-31 20:37:10,335 INFO L231 Difference]: Finished difference. Result has 626 places, 2311 transitions, 43868 flow [2023-08-31 20:37:10,337 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=40231, PETRI_DIFFERENCE_MINUEND_PLACES=598, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2270, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1167, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1095, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=43868, PETRI_PLACES=626, PETRI_TRANSITIONS=2311} [2023-08-31 20:37:10,337 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 492 predicate places. [2023-08-31 20:37:10,337 INFO L495 AbstractCegarLoop]: Abstraction has has 626 places, 2311 transitions, 43868 flow [2023-08-31 20:37:10,338 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 168.0909090909091) internal successors, (1849), 11 states have internal predecessors, (1849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:37:10,338 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:37:10,338 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:37:10,338 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2023-08-31 20:37:10,338 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-31 20:37:10,339 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:37:10,339 INFO L85 PathProgramCache]: Analyzing trace with hash -1172687999, now seen corresponding path program 8 times [2023-08-31 20:37:10,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:37:10,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657624644] [2023-08-31 20:37:10,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:37:10,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:37:10,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:37:10,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:37:10,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:37:10,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1657624644] [2023-08-31 20:37:10,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1657624644] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:37:10,533 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:37:10,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-31 20:37:10,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328861136] [2023-08-31 20:37:10,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:37:10,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-31 20:37:10,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:37:10,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-31 20:37:10,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-08-31 20:37:11,461 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 410 [2023-08-31 20:37:11,465 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 626 places, 2311 transitions, 43868 flow. Second operand has 11 states, 11 states have (on average 168.0909090909091) internal successors, (1849), 11 states have internal predecessors, (1849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:37:11,465 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:37:11,465 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 410 [2023-08-31 20:37:11,465 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:37:27,321 INFO L130 PetriNetUnfolder]: 15197/35192 cut-off events. [2023-08-31 20:37:27,322 INFO L131 PetriNetUnfolder]: For 399212/401109 co-relation queries the response was YES. [2023-08-31 20:37:27,949 INFO L83 FinitePrefix]: Finished finitePrefix Result has 172947 conditions, 35192 events. 15197/35192 cut-off events. For 399212/401109 co-relation queries the response was YES. Maximal size of possible extension queue 412. Compared 321719 event pairs, 6760 based on Foata normal form. 82/34260 useless extension candidates. Maximal degree in co-relation 172746. Up to 18396 conditions per place. [2023-08-31 20:37:28,190 INFO L137 encePairwiseOnDemand]: 362/410 looper letters, 1518 selfloop transitions, 1208 changer transitions 2/2807 dead transitions. [2023-08-31 20:37:28,190 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 650 places, 2807 transitions, 52990 flow [2023-08-31 20:37:28,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-08-31 20:37:28,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2023-08-31 20:37:28,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 5074 transitions. [2023-08-31 20:37:28,194 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49502439024390243 [2023-08-31 20:37:28,194 INFO L72 ComplementDD]: Start complementDD. Operand 25 states and 5074 transitions. [2023-08-31 20:37:28,194 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 5074 transitions. [2023-08-31 20:37:28,195 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:37:28,195 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 25 states and 5074 transitions. [2023-08-31 20:37:28,198 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 26 states, 25 states have (on average 202.96) internal successors, (5074), 25 states have internal predecessors, (5074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:37:28,202 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 26 states, 26 states have (on average 410.0) internal successors, (10660), 26 states have internal predecessors, (10660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:37:28,202 INFO L81 ComplementDD]: Finished complementDD. Result has 26 states, 26 states have (on average 410.0) internal successors, (10660), 26 states have internal predecessors, (10660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:37:28,202 INFO L175 Difference]: Start difference. First operand has 626 places, 2311 transitions, 43868 flow. Second operand 25 states and 5074 transitions. [2023-08-31 20:37:28,202 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 650 places, 2807 transitions, 52990 flow [2023-08-31 20:37:32,571 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 645 places, 2807 transitions, 51414 flow, removed 177 selfloop flow, removed 5 redundant places. [2023-08-31 20:37:32,603 INFO L231 Difference]: Finished difference. Result has 653 places, 2325 transitions, 45429 flow [2023-08-31 20:37:32,604 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=42296, PETRI_DIFFERENCE_MINUEND_PLACES=621, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2311, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1197, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=25, PETRI_FLOW=45429, PETRI_PLACES=653, PETRI_TRANSITIONS=2325} [2023-08-31 20:37:32,604 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 519 predicate places. [2023-08-31 20:37:32,605 INFO L495 AbstractCegarLoop]: Abstraction has has 653 places, 2325 transitions, 45429 flow [2023-08-31 20:37:32,605 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 168.0909090909091) internal successors, (1849), 11 states have internal predecessors, (1849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:37:32,605 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:37:32,605 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:37:32,605 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2023-08-31 20:37:32,605 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-31 20:37:32,606 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:37:32,606 INFO L85 PathProgramCache]: Analyzing trace with hash -1864656376, now seen corresponding path program 1 times [2023-08-31 20:37:32,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:37:32,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513999931] [2023-08-31 20:37:32,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:37:32,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:37:32,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:37:32,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:37:32,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:37:32,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513999931] [2023-08-31 20:37:32,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [513999931] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:37:32,739 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:37:32,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 20:37:32,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617450059] [2023-08-31 20:37:32,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:37:32,739 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 20:37:32,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:37:32,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 20:37:32,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 20:37:32,993 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 176 out of 410 [2023-08-31 20:37:32,994 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 653 places, 2325 transitions, 45429 flow. Second operand has 6 states, 6 states have (on average 177.83333333333334) internal successors, (1067), 6 states have internal predecessors, (1067), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:37:32,994 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:37:32,994 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 176 of 410 [2023-08-31 20:37:32,994 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:37:49,339 INFO L130 PetriNetUnfolder]: 16734/38820 cut-off events. [2023-08-31 20:37:49,340 INFO L131 PetriNetUnfolder]: For 404754/407665 co-relation queries the response was YES. [2023-08-31 20:37:50,216 INFO L83 FinitePrefix]: Finished finitePrefix Result has 180597 conditions, 38820 events. 16734/38820 cut-off events. For 404754/407665 co-relation queries the response was YES. Maximal size of possible extension queue 445. Compared 357273 event pairs, 9644 based on Foata normal form. 41/37754 useless extension candidates. Maximal degree in co-relation 180387. Up to 31604 conditions per place. [2023-08-31 20:37:50,326 INFO L137 encePairwiseOnDemand]: 376/410 looper letters, 2084 selfloop transitions, 253 changer transitions 0/2661 dead transitions. [2023-08-31 20:37:50,326 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 658 places, 2661 transitions, 53985 flow [2023-08-31 20:37:50,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 20:37:50,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 20:37:50,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1330 transitions. [2023-08-31 20:37:50,328 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.540650406504065 [2023-08-31 20:37:50,328 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1330 transitions. [2023-08-31 20:37:50,328 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1330 transitions. [2023-08-31 20:37:50,328 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:37:50,328 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1330 transitions. [2023-08-31 20:37:50,329 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 221.66666666666666) internal successors, (1330), 6 states have internal predecessors, (1330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:37:50,330 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 410.0) internal successors, (2870), 7 states have internal predecessors, (2870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:37:50,330 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 410.0) internal successors, (2870), 7 states have internal predecessors, (2870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:37:50,330 INFO L175 Difference]: Start difference. First operand has 653 places, 2325 transitions, 45429 flow. Second operand 6 states and 1330 transitions. [2023-08-31 20:37:50,330 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 658 places, 2661 transitions, 53985 flow [2023-08-31 20:37:54,052 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 650 places, 2661 transitions, 52382 flow, removed 261 selfloop flow, removed 8 redundant places. [2023-08-31 20:37:54,084 INFO L231 Difference]: Finished difference. Result has 654 places, 2565 transitions, 47946 flow [2023-08-31 20:37:54,085 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=44070, PETRI_DIFFERENCE_MINUEND_PLACES=645, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2325, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=72, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=2249, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=47946, PETRI_PLACES=654, PETRI_TRANSITIONS=2565} [2023-08-31 20:37:54,086 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 520 predicate places. [2023-08-31 20:37:54,086 INFO L495 AbstractCegarLoop]: Abstraction has has 654 places, 2565 transitions, 47946 flow [2023-08-31 20:37:54,086 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 177.83333333333334) internal successors, (1067), 6 states have internal predecessors, (1067), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:37:54,086 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:37:54,086 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:37:54,087 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2023-08-31 20:37:54,087 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-31 20:37:54,087 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:37:54,087 INFO L85 PathProgramCache]: Analyzing trace with hash 556090547, now seen corresponding path program 1 times [2023-08-31 20:37:54,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:37:54,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553326829] [2023-08-31 20:37:54,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:37:54,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:37:54,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:37:54,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:37:54,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:37:54,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553326829] [2023-08-31 20:37:54,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1553326829] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:37:54,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:37:54,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 20:37:54,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766053133] [2023-08-31 20:37:54,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:37:54,218 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 20:37:54,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:37:54,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 20:37:54,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 20:37:54,456 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 178 out of 410 [2023-08-31 20:37:54,456 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 654 places, 2565 transitions, 47946 flow. Second operand has 6 states, 6 states have (on average 180.0) internal successors, (1080), 6 states have internal predecessors, (1080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:37:54,456 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:37:54,456 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 178 of 410 [2023-08-31 20:37:54,456 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:38:13,462 INFO L130 PetriNetUnfolder]: 18101/41885 cut-off events. [2023-08-31 20:38:13,462 INFO L131 PetriNetUnfolder]: For 433967/436973 co-relation queries the response was YES. [2023-08-31 20:38:14,517 INFO L83 FinitePrefix]: Finished finitePrefix Result has 201994 conditions, 41885 events. 18101/41885 cut-off events. For 433967/436973 co-relation queries the response was YES. Maximal size of possible extension queue 482. Compared 390614 event pairs, 9027 based on Foata normal form. 16/40704 useless extension candidates. Maximal degree in co-relation 201783. Up to 33741 conditions per place. [2023-08-31 20:38:14,641 INFO L137 encePairwiseOnDemand]: 368/410 looper letters, 2445 selfloop transitions, 373 changer transitions 0/3133 dead transitions. [2023-08-31 20:38:14,641 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 659 places, 3133 transitions, 59938 flow [2023-08-31 20:38:14,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 20:38:14,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 20:38:14,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1386 transitions. [2023-08-31 20:38:14,643 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5634146341463414 [2023-08-31 20:38:14,643 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1386 transitions. [2023-08-31 20:38:14,643 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1386 transitions. [2023-08-31 20:38:14,643 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:38:14,643 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1386 transitions. [2023-08-31 20:38:14,644 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 231.0) internal successors, (1386), 6 states have internal predecessors, (1386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:38:14,645 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 410.0) internal successors, (2870), 7 states have internal predecessors, (2870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:38:14,645 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 410.0) internal successors, (2870), 7 states have internal predecessors, (2870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:38:14,645 INFO L175 Difference]: Start difference. First operand has 654 places, 2565 transitions, 47946 flow. Second operand 6 states and 1386 transitions. [2023-08-31 20:38:14,646 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 659 places, 3133 transitions, 59938 flow [2023-08-31 20:38:19,305 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 659 places, 3133 transitions, 58164 flow, removed 887 selfloop flow, removed 0 redundant places. [2023-08-31 20:38:19,340 INFO L231 Difference]: Finished difference. Result has 663 places, 2921 transitions, 51080 flow [2023-08-31 20:38:19,341 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=46172, PETRI_DIFFERENCE_MINUEND_PLACES=654, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2565, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=105, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=2456, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=51080, PETRI_PLACES=663, PETRI_TRANSITIONS=2921} [2023-08-31 20:38:19,341 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 529 predicate places. [2023-08-31 20:38:19,342 INFO L495 AbstractCegarLoop]: Abstraction has has 663 places, 2921 transitions, 51080 flow [2023-08-31 20:38:19,342 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 180.0) internal successors, (1080), 6 states have internal predecessors, (1080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:38:19,342 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:38:19,342 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:38:19,342 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2023-08-31 20:38:19,342 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-31 20:38:19,343 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:38:19,343 INFO L85 PathProgramCache]: Analyzing trace with hash -1194355636, now seen corresponding path program 1 times [2023-08-31 20:38:19,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:38:19,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204549851] [2023-08-31 20:38:19,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:38:19,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:38:19,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:38:19,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:38:19,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:38:19,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204549851] [2023-08-31 20:38:19,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [204549851] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:38:19,643 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:38:19,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-31 20:38:19,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905765311] [2023-08-31 20:38:19,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:38:19,643 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-31 20:38:19,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:38:19,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-31 20:38:19,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-08-31 20:38:20,700 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 410 [2023-08-31 20:38:20,701 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 663 places, 2921 transitions, 51080 flow. Second operand has 11 states, 11 states have (on average 168.27272727272728) internal successors, (1851), 11 states have internal predecessors, (1851), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:38:20,701 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:38:20,701 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 410 [2023-08-31 20:38:20,701 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:38:41,166 INFO L130 PetriNetUnfolder]: 18380/42288 cut-off events. [2023-08-31 20:38:41,166 INFO L131 PetriNetUnfolder]: For 434477/437532 co-relation queries the response was YES. [2023-08-31 20:38:42,332 INFO L83 FinitePrefix]: Finished finitePrefix Result has 217920 conditions, 42288 events. 18380/42288 cut-off events. For 434477/437532 co-relation queries the response was YES. Maximal size of possible extension queue 472. Compared 392595 event pairs, 8276 based on Foata normal form. 17/41126 useless extension candidates. Maximal degree in co-relation 217704. Up to 22341 conditions per place. [2023-08-31 20:38:42,465 INFO L137 encePairwiseOnDemand]: 370/410 looper letters, 2306 selfloop transitions, 366 changer transitions 2/3182 dead transitions. [2023-08-31 20:38:42,465 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 672 places, 3182 transitions, 58781 flow [2023-08-31 20:38:42,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-31 20:38:42,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-31 20:38:42,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1970 transitions. [2023-08-31 20:38:42,467 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48048780487804876 [2023-08-31 20:38:42,467 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1970 transitions. [2023-08-31 20:38:42,467 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1970 transitions. [2023-08-31 20:38:42,467 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:38:42,467 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1970 transitions. [2023-08-31 20:38:42,468 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 197.0) internal successors, (1970), 10 states have internal predecessors, (1970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:38:42,470 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 410.0) internal successors, (4510), 11 states have internal predecessors, (4510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:38:42,470 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 410.0) internal successors, (4510), 11 states have internal predecessors, (4510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:38:42,470 INFO L175 Difference]: Start difference. First operand has 663 places, 2921 transitions, 51080 flow. Second operand 10 states and 1970 transitions. [2023-08-31 20:38:42,470 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 672 places, 3182 transitions, 58781 flow