./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/weaver/chl-word-symm.wvr.c --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/weaver/chl-word-symm.wvr.c -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 4ca4c99e545bc332635ee8b9969d24118d6fd539f8535aa6ae4c72d296ec330e --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-29 18:57:49,202 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 18:57:49,205 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 18:57:49,248 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 18:57:49,250 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 18:57:49,253 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 18:57:49,256 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 18:57:49,258 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 18:57:49,261 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 18:57:49,265 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 18:57:49,266 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 18:57:49,269 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 18:57:49,269 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 18:57:49,271 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 18:57:49,273 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 18:57:49,279 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 18:57:49,281 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 18:57:49,281 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 18:57:49,283 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 18:57:49,288 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 18:57:49,290 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 18:57:49,291 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 18:57:49,292 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 18:57:49,293 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 18:57:49,301 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 18:57:49,301 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 18:57:49,301 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 18:57:49,303 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 18:57:49,304 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 18:57:49,305 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 18:57:49,305 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 18:57:49,311 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 18:57:49,312 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 18:57:49,313 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 18:57:49,314 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 18:57:49,315 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 18:57:49,315 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 18:57:49,315 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 18:57:49,315 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 18:57:49,316 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 18:57:49,317 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 18:57:49,318 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-29 18:57:49,349 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 18:57:49,349 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 18:57:49,351 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 18:57:49,351 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 18:57:49,352 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 18:57:49,352 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 18:57:49,353 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 18:57:49,353 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 18:57:49,353 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 18:57:49,353 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 18:57:49,354 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 18:57:49,354 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 18:57:49,354 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 18:57:49,355 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 18:57:49,355 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 18:57:49,355 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-29 18:57:49,355 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 18:57:49,355 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-29 18:57:49,356 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-29 18:57:49,356 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 18:57:49,356 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-29 18:57:49,356 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 18:57:49,356 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-29 18:57:49,357 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 18:57:49,357 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 18:57:49,357 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 18:57:49,357 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 18:57:49,357 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 18:57:49,358 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 18:57:49,358 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-29 18:57:49,358 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 18:57:49,358 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 18:57:49,358 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 18:57:49,359 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-29 18:57:49,359 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 18:57:49,359 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 18:57:49,359 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 18:57:49,359 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4ca4c99e545bc332635ee8b9969d24118d6fd539f8535aa6ae4c72d296ec330e Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-29 18:57:49,690 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 18:57:49,716 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 18:57:49,719 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 18:57:49,721 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 18:57:49,721 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 18:57:49,724 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-word-symm.wvr.c [2023-08-29 18:57:50,823 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 18:57:51,046 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 18:57:51,047 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-word-symm.wvr.c [2023-08-29 18:57:51,055 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2f455b2b7/7649ce2a1e994f5faa7d2e8e39d27fcb/FLAG47a27951c [2023-08-29 18:57:51,067 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2f455b2b7/7649ce2a1e994f5faa7d2e8e39d27fcb [2023-08-29 18:57:51,068 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 18:57:51,070 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 18:57:51,071 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 18:57:51,071 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 18:57:51,074 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 18:57:51,074 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 06:57:51" (1/1) ... [2023-08-29 18:57:51,075 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6bc6cc62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:57:51, skipping insertion in model container [2023-08-29 18:57:51,076 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 06:57:51" (1/1) ... [2023-08-29 18:57:51,081 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 18:57:51,098 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 18:57:51,317 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-word-symm.wvr.c[2848,2861] [2023-08-29 18:57:51,331 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 18:57:51,344 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 18:57:51,390 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-word-symm.wvr.c[2848,2861] [2023-08-29 18:57:51,403 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 18:57:51,427 INFO L208 MainTranslator]: Completed translation [2023-08-29 18:57:51,428 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:57:51 WrapperNode [2023-08-29 18:57:51,428 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 18:57:51,429 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 18:57:51,429 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 18:57:51,429 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 18:57:51,435 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:57:51" (1/1) ... [2023-08-29 18:57:51,457 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:57:51" (1/1) ... [2023-08-29 18:57:51,495 INFO L138 Inliner]: procedures = 24, calls = 35, calls flagged for inlining = 9, calls inlined = 11, statements flattened = 210 [2023-08-29 18:57:51,496 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 18:57:51,497 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 18:57:51,497 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 18:57:51,498 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 18:57:51,505 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:57:51" (1/1) ... [2023-08-29 18:57:51,506 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:57:51" (1/1) ... [2023-08-29 18:57:51,519 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:57:51" (1/1) ... [2023-08-29 18:57:51,523 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:57:51" (1/1) ... [2023-08-29 18:57:51,535 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:57:51" (1/1) ... [2023-08-29 18:57:51,552 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:57:51" (1/1) ... [2023-08-29 18:57:51,558 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:57:51" (1/1) ... [2023-08-29 18:57:51,564 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:57:51" (1/1) ... [2023-08-29 18:57:51,569 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 18:57:51,571 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 18:57:51,572 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 18:57:51,572 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 18:57:51,573 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:57:51" (1/1) ... [2023-08-29 18:57:51,578 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 18:57:51,589 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 18:57:51,606 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-29 18:57:51,633 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-29 18:57:51,645 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-29 18:57:51,645 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-29 18:57:51,646 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-29 18:57:51,646 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-29 18:57:51,646 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-29 18:57:51,646 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-29 18:57:51,646 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 18:57:51,646 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-29 18:57:51,646 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-29 18:57:51,647 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 18:57:51,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 18:57:51,647 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-29 18:57:51,647 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 18:57:51,648 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-29 18:57:51,782 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 18:57:51,784 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 18:57:52,357 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 18:57:52,369 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 18:57:52,370 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-08-29 18:57:52,372 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 06:57:52 BoogieIcfgContainer [2023-08-29 18:57:52,373 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 18:57:52,375 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 18:57:52,375 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 18:57:52,378 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 18:57:52,378 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 06:57:51" (1/3) ... [2023-08-29 18:57:52,379 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a4c8e9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 06:57:52, skipping insertion in model container [2023-08-29 18:57:52,379 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:57:51" (2/3) ... [2023-08-29 18:57:52,379 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a4c8e9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 06:57:52, skipping insertion in model container [2023-08-29 18:57:52,379 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 06:57:52" (3/3) ... [2023-08-29 18:57:52,380 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-word-symm.wvr.c [2023-08-29 18:57:52,387 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-29 18:57:52,396 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 18:57:52,396 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 56 error locations. [2023-08-29 18:57:52,396 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 18:57:52,513 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-29 18:57:52,553 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 451 places, 470 transitions, 956 flow [2023-08-29 18:57:52,751 INFO L130 PetriNetUnfolder]: 26/468 cut-off events. [2023-08-29 18:57:52,751 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-29 18:57:52,763 INFO L83 FinitePrefix]: Finished finitePrefix Result has 477 conditions, 468 events. 26/468 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1067 event pairs, 0 based on Foata normal form. 0/386 useless extension candidates. Maximal degree in co-relation 279. Up to 3 conditions per place. [2023-08-29 18:57:52,763 INFO L82 GeneralOperation]: Start removeDead. Operand has 451 places, 470 transitions, 956 flow [2023-08-29 18:57:52,775 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 433 places, 450 transitions, 912 flow [2023-08-29 18:57:52,779 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 18:57:52,792 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 433 places, 450 transitions, 912 flow [2023-08-29 18:57:52,799 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 433 places, 450 transitions, 912 flow [2023-08-29 18:57:52,800 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 433 places, 450 transitions, 912 flow [2023-08-29 18:57:52,876 INFO L130 PetriNetUnfolder]: 24/450 cut-off events. [2023-08-29 18:57:52,877 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-29 18:57:52,881 INFO L83 FinitePrefix]: Finished finitePrefix Result has 459 conditions, 450 events. 24/450 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1053 event pairs, 0 based on Foata normal form. 0/371 useless extension candidates. Maximal degree in co-relation 279. Up to 3 conditions per place. [2023-08-29 18:57:52,895 INFO L119 LiptonReduction]: Number of co-enabled transitions 31968 [2023-08-29 18:58:01,039 INFO L134 LiptonReduction]: Checked pairs total: 235448 [2023-08-29 18:58:01,039 INFO L136 LiptonReduction]: Total number of compositions: 380 [2023-08-29 18:58:01,053 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 18:58:01,061 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;@6c46a9b0, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 18:58:01,062 INFO L358 AbstractCegarLoop]: Starting to check reachability of 96 error locations. [2023-08-29 18:58:01,064 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-29 18:58:01,064 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 18:58:01,064 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:58:01,065 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-29 18:58:01,066 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2023-08-29 18:58:01,071 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:58:01,071 INFO L85 PathProgramCache]: Analyzing trace with hash 1673, now seen corresponding path program 1 times [2023-08-29 18:58:01,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:58:01,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437404676] [2023-08-29 18:58:01,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:58:01,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:58:01,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:58:01,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 18:58:01,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:58:01,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437404676] [2023-08-29 18:58:01,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [437404676] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:58:01,188 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:58:01,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-29 18:58:01,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307642330] [2023-08-29 18:58:01,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:58:01,197 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-29 18:58:01,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:58:01,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-29 18:58:01,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-29 18:58:01,231 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 454 out of 850 [2023-08-29 18:58:01,237 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 173 places, 180 transitions, 372 flow. Second operand has 2 states, 2 states have (on average 454.5) internal successors, (909), 2 states have internal predecessors, (909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:58:01,237 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:58:01,237 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 454 of 850 [2023-08-29 18:58:01,238 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:58:01,735 INFO L130 PetriNetUnfolder]: 817/3012 cut-off events. [2023-08-29 18:58:01,736 INFO L131 PetriNetUnfolder]: For 103/145 co-relation queries the response was YES. [2023-08-29 18:58:01,742 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4284 conditions, 3012 events. 817/3012 cut-off events. For 103/145 co-relation queries the response was YES. Maximal size of possible extension queue 121. Compared 25641 event pairs, 525 based on Foata normal form. 204/2516 useless extension candidates. Maximal degree in co-relation 3992. Up to 1228 conditions per place. [2023-08-29 18:58:01,755 INFO L137 encePairwiseOnDemand]: 826/850 looper letters, 46 selfloop transitions, 0 changer transitions 1/156 dead transitions. [2023-08-29 18:58:01,755 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 156 transitions, 418 flow [2023-08-29 18:58:01,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-29 18:58:01,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-29 18:58:01,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 979 transitions. [2023-08-29 18:58:01,770 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5758823529411765 [2023-08-29 18:58:01,771 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 979 transitions. [2023-08-29 18:58:01,772 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 979 transitions. [2023-08-29 18:58:01,774 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:58:01,776 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 979 transitions. [2023-08-29 18:58:01,781 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 489.5) internal successors, (979), 2 states have internal predecessors, (979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:58:01,788 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 850.0) internal successors, (2550), 3 states have internal predecessors, (2550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:58:01,789 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 850.0) internal successors, (2550), 3 states have internal predecessors, (2550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:58:01,791 INFO L175 Difference]: Start difference. First operand has 173 places, 180 transitions, 372 flow. Second operand 2 states and 979 transitions. [2023-08-29 18:58:01,792 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 156 transitions, 418 flow [2023-08-29 18:58:01,796 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 156 transitions, 410 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-29 18:58:01,799 INFO L231 Difference]: Finished difference. Result has 148 places, 155 transitions, 313 flow [2023-08-29 18:58:01,801 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=850, PETRI_DIFFERENCE_MINUEND_FLOW=316, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=156, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=156, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=313, PETRI_PLACES=148, PETRI_TRANSITIONS=155} [2023-08-29 18:58:01,804 INFO L281 CegarLoopForPetriNet]: 173 programPoint places, -25 predicate places. [2023-08-29 18:58:01,804 INFO L495 AbstractCegarLoop]: Abstraction has has 148 places, 155 transitions, 313 flow [2023-08-29 18:58:01,805 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 454.5) internal successors, (909), 2 states have internal predecessors, (909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:58:01,805 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:58:01,805 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-29 18:58:01,806 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-29 18:58:01,806 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2023-08-29 18:58:01,807 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:58:01,807 INFO L85 PathProgramCache]: Analyzing trace with hash -1763721432, now seen corresponding path program 1 times [2023-08-29 18:58:01,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:58:01,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447930638] [2023-08-29 18:58:01,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:58:01,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:58:01,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:58:01,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 18:58:01,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:58:01,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447930638] [2023-08-29 18:58:01,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1447930638] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:58:01,912 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:58:01,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 18:58:01,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478162713] [2023-08-29 18:58:01,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:58:01,913 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 18:58:01,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:58:01,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 18:58:01,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 18:58:01,933 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 441 out of 850 [2023-08-29 18:58:01,935 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 155 transitions, 313 flow. Second operand has 3 states, 3 states have (on average 443.0) internal successors, (1329), 3 states have internal predecessors, (1329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:58:01,935 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:58:01,935 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 441 of 850 [2023-08-29 18:58:01,935 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:58:02,327 INFO L130 PetriNetUnfolder]: 1095/3599 cut-off events. [2023-08-29 18:58:02,328 INFO L131 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2023-08-29 18:58:02,334 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5283 conditions, 3599 events. 1095/3599 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 128. Compared 29950 event pairs, 417 based on Foata normal form. 0/2868 useless extension candidates. Maximal degree in co-relation 5280. Up to 1654 conditions per place. [2023-08-29 18:58:02,350 INFO L137 encePairwiseOnDemand]: 844/850 looper letters, 55 selfloop transitions, 2 changer transitions 0/157 dead transitions. [2023-08-29 18:58:02,350 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 157 transitions, 432 flow [2023-08-29 18:58:02,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 18:58:02,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 18:58:02,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1384 transitions. [2023-08-29 18:58:02,354 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5427450980392157 [2023-08-29 18:58:02,354 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1384 transitions. [2023-08-29 18:58:02,355 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1384 transitions. [2023-08-29 18:58:02,355 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:58:02,356 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1384 transitions. [2023-08-29 18:58:02,359 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 461.3333333333333) internal successors, (1384), 3 states have internal predecessors, (1384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:58:02,364 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 850.0) internal successors, (3400), 4 states have internal predecessors, (3400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:58:02,366 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 850.0) internal successors, (3400), 4 states have internal predecessors, (3400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:58:02,366 INFO L175 Difference]: Start difference. First operand has 148 places, 155 transitions, 313 flow. Second operand 3 states and 1384 transitions. [2023-08-29 18:58:02,366 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 157 transitions, 432 flow [2023-08-29 18:58:02,367 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 157 transitions, 432 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 18:58:02,370 INFO L231 Difference]: Finished difference. Result has 146 places, 153 transitions, 319 flow [2023-08-29 18:58:02,370 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=850, PETRI_DIFFERENCE_MINUEND_FLOW=305, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=151, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=149, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=319, PETRI_PLACES=146, PETRI_TRANSITIONS=153} [2023-08-29 18:58:02,371 INFO L281 CegarLoopForPetriNet]: 173 programPoint places, -27 predicate places. [2023-08-29 18:58:02,371 INFO L495 AbstractCegarLoop]: Abstraction has has 146 places, 153 transitions, 319 flow [2023-08-29 18:58:02,372 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 443.0) internal successors, (1329), 3 states have internal predecessors, (1329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:58:02,373 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:58:02,373 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:58:02,373 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-29 18:58:02,373 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2023-08-29 18:58:02,374 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:58:02,374 INFO L85 PathProgramCache]: Analyzing trace with hash 1582506890, now seen corresponding path program 1 times [2023-08-29 18:58:02,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:58:02,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729497956] [2023-08-29 18:58:02,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:58:02,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:58:02,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:58:02,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 18:58:02,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:58:02,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729497956] [2023-08-29 18:58:02,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1729497956] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:58:02,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:58:02,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 18:58:02,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79926038] [2023-08-29 18:58:02,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:58:02,442 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 18:58:02,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:58:02,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 18:58:02,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 18:58:02,462 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 441 out of 850 [2023-08-29 18:58:02,464 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 153 transitions, 319 flow. Second operand has 3 states, 3 states have (on average 443.6666666666667) internal successors, (1331), 3 states have internal predecessors, (1331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:58:02,464 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:58:02,464 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 441 of 850 [2023-08-29 18:58:02,464 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:58:02,833 INFO L130 PetriNetUnfolder]: 1082/3487 cut-off events. [2023-08-29 18:58:02,834 INFO L131 PetriNetUnfolder]: For 50/50 co-relation queries the response was YES. [2023-08-29 18:58:02,840 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5204 conditions, 3487 events. 1082/3487 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 124. Compared 28613 event pairs, 411 based on Foata normal form. 0/2780 useless extension candidates. Maximal degree in co-relation 5200. Up to 1627 conditions per place. [2023-08-29 18:58:02,852 INFO L137 encePairwiseOnDemand]: 844/850 looper letters, 56 selfloop transitions, 2 changer transitions 0/155 dead transitions. [2023-08-29 18:58:02,853 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 155 transitions, 443 flow [2023-08-29 18:58:02,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 18:58:02,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 18:58:02,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1384 transitions. [2023-08-29 18:58:02,856 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5427450980392157 [2023-08-29 18:58:02,856 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1384 transitions. [2023-08-29 18:58:02,857 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1384 transitions. [2023-08-29 18:58:02,857 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:58:02,857 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1384 transitions. [2023-08-29 18:58:02,860 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 461.3333333333333) internal successors, (1384), 3 states have internal predecessors, (1384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:58:02,864 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 850.0) internal successors, (3400), 4 states have internal predecessors, (3400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:58:02,866 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 850.0) internal successors, (3400), 4 states have internal predecessors, (3400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:58:02,866 INFO L175 Difference]: Start difference. First operand has 146 places, 153 transitions, 319 flow. Second operand 3 states and 1384 transitions. [2023-08-29 18:58:02,866 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 155 transitions, 443 flow [2023-08-29 18:58:02,867 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 155 transitions, 443 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 18:58:02,869 INFO L231 Difference]: Finished difference. Result has 145 places, 151 transitions, 325 flow [2023-08-29 18:58:02,870 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=850, PETRI_DIFFERENCE_MINUEND_FLOW=311, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=149, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=147, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=325, PETRI_PLACES=145, PETRI_TRANSITIONS=151} [2023-08-29 18:58:02,870 INFO L281 CegarLoopForPetriNet]: 173 programPoint places, -28 predicate places. [2023-08-29 18:58:02,871 INFO L495 AbstractCegarLoop]: Abstraction has has 145 places, 151 transitions, 325 flow [2023-08-29 18:58:02,872 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 443.6666666666667) internal successors, (1331), 3 states have internal predecessors, (1331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:58:02,872 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:58:02,872 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:58:02,872 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-29 18:58:02,872 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2023-08-29 18:58:02,873 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:58:02,873 INFO L85 PathProgramCache]: Analyzing trace with hash -1759661657, now seen corresponding path program 1 times [2023-08-29 18:58:02,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:58:02,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508590885] [2023-08-29 18:58:02,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:58:02,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:58:02,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:58:02,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 18:58:02,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:58:02,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508590885] [2023-08-29 18:58:02,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [508590885] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:58:02,919 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:58:02,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 18:58:02,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986176927] [2023-08-29 18:58:02,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:58:02,920 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 18:58:02,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:58:02,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 18:58:02,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 18:58:02,941 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 438 out of 850 [2023-08-29 18:58:02,942 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 151 transitions, 325 flow. Second operand has 3 states, 3 states have (on average 440.6666666666667) internal successors, (1322), 3 states have internal predecessors, (1322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:58:02,943 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:58:02,943 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 438 of 850 [2023-08-29 18:58:02,943 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:58:03,300 INFO L130 PetriNetUnfolder]: 1075/3361 cut-off events. [2023-08-29 18:58:03,301 INFO L131 PetriNetUnfolder]: For 76/77 co-relation queries the response was YES. [2023-08-29 18:58:03,308 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5095 conditions, 3361 events. 1075/3361 cut-off events. For 76/77 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 27175 event pairs, 643 based on Foata normal form. 0/2645 useless extension candidates. Maximal degree in co-relation 5090. Up to 1625 conditions per place. [2023-08-29 18:58:03,328 INFO L137 encePairwiseOnDemand]: 845/850 looper letters, 51 selfloop transitions, 1 changer transitions 0/147 dead transitions. [2023-08-29 18:58:03,329 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 147 transitions, 421 flow [2023-08-29 18:58:03,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 18:58:03,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 18:58:03,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1368 transitions. [2023-08-29 18:58:03,333 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5364705882352941 [2023-08-29 18:58:03,333 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1368 transitions. [2023-08-29 18:58:03,337 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1368 transitions. [2023-08-29 18:58:03,338 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:58:03,338 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1368 transitions. [2023-08-29 18:58:03,341 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 456.0) internal successors, (1368), 3 states have internal predecessors, (1368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:58:03,346 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 850.0) internal successors, (3400), 4 states have internal predecessors, (3400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:58:03,347 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 850.0) internal successors, (3400), 4 states have internal predecessors, (3400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:58:03,347 INFO L175 Difference]: Start difference. First operand has 145 places, 151 transitions, 325 flow. Second operand 3 states and 1368 transitions. [2023-08-29 18:58:03,348 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 147 transitions, 421 flow [2023-08-29 18:58:03,349 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 147 transitions, 421 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 18:58:03,351 INFO L231 Difference]: Finished difference. Result has 143 places, 147 transitions, 319 flow [2023-08-29 18:58:03,351 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=850, PETRI_DIFFERENCE_MINUEND_FLOW=317, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=147, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=146, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=319, PETRI_PLACES=143, PETRI_TRANSITIONS=147} [2023-08-29 18:58:03,353 INFO L281 CegarLoopForPetriNet]: 173 programPoint places, -30 predicate places. [2023-08-29 18:58:03,353 INFO L495 AbstractCegarLoop]: Abstraction has has 143 places, 147 transitions, 319 flow [2023-08-29 18:58:03,354 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 440.6666666666667) internal successors, (1322), 3 states have internal predecessors, (1322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:58:03,354 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:58:03,354 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:58:03,354 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-29 18:58:03,355 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2023-08-29 18:58:03,355 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:58:03,355 INFO L85 PathProgramCache]: Analyzing trace with hash -1219981720, now seen corresponding path program 1 times [2023-08-29 18:58:03,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:58:03,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823269843] [2023-08-29 18:58:03,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:58:03,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:58:03,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:58:03,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 18:58:03,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:58:03,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823269843] [2023-08-29 18:58:03,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1823269843] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:58:03,825 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:58:03,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 18:58:03,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753845051] [2023-08-29 18:58:03,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:58:03,826 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 18:58:03,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:58:03,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 18:58:03,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 18:58:04,254 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 437 out of 850 [2023-08-29 18:58:04,257 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 147 transitions, 319 flow. Second operand has 6 states, 6 states have (on average 438.8333333333333) internal successors, (2633), 6 states have internal predecessors, (2633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:58:04,257 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:58:04,257 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 437 of 850 [2023-08-29 18:58:04,258 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:58:04,934 INFO L130 PetriNetUnfolder]: 3032/5650 cut-off events. [2023-08-29 18:58:04,934 INFO L131 PetriNetUnfolder]: For 170/171 co-relation queries the response was YES. [2023-08-29 18:58:04,946 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10146 conditions, 5650 events. 3032/5650 cut-off events. For 170/171 co-relation queries the response was YES. Maximal size of possible extension queue 216. Compared 39684 event pairs, 147 based on Foata normal form. 0/4248 useless extension candidates. Maximal degree in co-relation 10140. Up to 1570 conditions per place. [2023-08-29 18:58:04,997 INFO L137 encePairwiseOnDemand]: 845/850 looper letters, 196 selfloop transitions, 4 changer transitions 0/294 dead transitions. [2023-08-29 18:58:04,997 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 294 transitions, 1053 flow [2023-08-29 18:58:04,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 18:58:04,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 18:58:05,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2813 transitions. [2023-08-29 18:58:05,005 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5515686274509803 [2023-08-29 18:58:05,005 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2813 transitions. [2023-08-29 18:58:05,005 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2813 transitions. [2023-08-29 18:58:05,007 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:58:05,007 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2813 transitions. [2023-08-29 18:58:05,013 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 468.8333333333333) internal successors, (2813), 6 states have internal predecessors, (2813), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:58:05,022 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 850.0) internal successors, (5950), 7 states have internal predecessors, (5950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:58:05,025 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 850.0) internal successors, (5950), 7 states have internal predecessors, (5950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:58:05,025 INFO L175 Difference]: Start difference. First operand has 143 places, 147 transitions, 319 flow. Second operand 6 states and 2813 transitions. [2023-08-29 18:58:05,026 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 294 transitions, 1053 flow [2023-08-29 18:58:05,028 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 294 transitions, 1052 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 18:58:05,031 INFO L231 Difference]: Finished difference. Result has 146 places, 146 transitions, 324 flow [2023-08-29 18:58:05,032 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=850, PETRI_DIFFERENCE_MINUEND_FLOW=316, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=146, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=142, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=324, PETRI_PLACES=146, PETRI_TRANSITIONS=146} [2023-08-29 18:58:05,034 INFO L281 CegarLoopForPetriNet]: 173 programPoint places, -27 predicate places. [2023-08-29 18:58:05,034 INFO L495 AbstractCegarLoop]: Abstraction has has 146 places, 146 transitions, 324 flow [2023-08-29 18:58:05,036 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 438.8333333333333) internal successors, (2633), 6 states have internal predecessors, (2633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:58:05,036 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:58:05,036 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:58:05,036 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-29 18:58:05,037 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2023-08-29 18:58:05,037 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:58:05,037 INFO L85 PathProgramCache]: Analyzing trace with hash -204044010, now seen corresponding path program 1 times [2023-08-29 18:58:05,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:58:05,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491228854] [2023-08-29 18:58:05,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:58:05,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:58:05,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:58:05,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 18:58:05,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:58:05,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491228854] [2023-08-29 18:58:05,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [491228854] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:58:05,071 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:58:05,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 18:58:05,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974816415] [2023-08-29 18:58:05,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:58:05,072 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 18:58:05,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:58:05,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 18:58:05,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 18:58:05,093 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 438 out of 850 [2023-08-29 18:58:05,096 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 146 transitions, 324 flow. Second operand has 3 states, 3 states have (on average 441.3333333333333) internal successors, (1324), 3 states have internal predecessors, (1324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:58:05,096 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:58:05,096 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 438 of 850 [2023-08-29 18:58:05,097 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:58:05,404 INFO L130 PetriNetUnfolder]: 1075/3198 cut-off events. [2023-08-29 18:58:05,404 INFO L131 PetriNetUnfolder]: For 303/312 co-relation queries the response was YES. [2023-08-29 18:58:05,413 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5222 conditions, 3198 events. 1075/3198 cut-off events. For 303/312 co-relation queries the response was YES. Maximal size of possible extension queue 111. Compared 25229 event pairs, 643 based on Foata normal form. 0/2537 useless extension candidates. Maximal degree in co-relation 5216. Up to 1623 conditions per place. [2023-08-29 18:58:05,424 INFO L137 encePairwiseOnDemand]: 845/850 looper letters, 51 selfloop transitions, 1 changer transitions 0/142 dead transitions. [2023-08-29 18:58:05,424 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 142 transitions, 420 flow [2023-08-29 18:58:05,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 18:58:05,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 18:58:05,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1368 transitions. [2023-08-29 18:58:05,429 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5364705882352941 [2023-08-29 18:58:05,429 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1368 transitions. [2023-08-29 18:58:05,429 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1368 transitions. [2023-08-29 18:58:05,430 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:58:05,430 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1368 transitions. [2023-08-29 18:58:05,433 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 456.0) internal successors, (1368), 3 states have internal predecessors, (1368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:58:05,437 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 850.0) internal successors, (3400), 4 states have internal predecessors, (3400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:58:05,438 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 850.0) internal successors, (3400), 4 states have internal predecessors, (3400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:58:05,438 INFO L175 Difference]: Start difference. First operand has 146 places, 146 transitions, 324 flow. Second operand 3 states and 1368 transitions. [2023-08-29 18:58:05,438 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 142 transitions, 420 flow [2023-08-29 18:58:05,440 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 142 transitions, 413 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-29 18:58:05,442 INFO L231 Difference]: Finished difference. Result has 140 places, 142 transitions, 311 flow [2023-08-29 18:58:05,443 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=850, PETRI_DIFFERENCE_MINUEND_FLOW=309, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=141, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=311, PETRI_PLACES=140, PETRI_TRANSITIONS=142} [2023-08-29 18:58:05,443 INFO L281 CegarLoopForPetriNet]: 173 programPoint places, -33 predicate places. [2023-08-29 18:58:05,443 INFO L495 AbstractCegarLoop]: Abstraction has has 140 places, 142 transitions, 311 flow [2023-08-29 18:58:05,444 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 441.3333333333333) internal successors, (1324), 3 states have internal predecessors, (1324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:58:05,444 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:58:05,444 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:58:05,445 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-29 18:58:05,445 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2023-08-29 18:58:05,445 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:58:05,445 INFO L85 PathProgramCache]: Analyzing trace with hash 1182687205, now seen corresponding path program 1 times [2023-08-29 18:58:05,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:58:05,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374078062] [2023-08-29 18:58:05,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:58:05,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:58:05,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:58:05,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 18:58:05,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:58:05,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374078062] [2023-08-29 18:58:05,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1374078062] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:58:05,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:58:05,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-29 18:58:05,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969041517] [2023-08-29 18:58:05,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:58:05,480 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 18:58:05,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:58:05,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 18:58:05,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 18:58:05,490 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 446 out of 850 [2023-08-29 18:58:05,492 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 142 transitions, 311 flow. Second operand has 3 states, 3 states have (on average 448.6666666666667) internal successors, (1346), 3 states have internal predecessors, (1346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:58:05,492 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:58:05,492 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 446 of 850 [2023-08-29 18:58:05,492 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:58:05,814 INFO L130 PetriNetUnfolder]: 915/3121 cut-off events. [2023-08-29 18:58:05,815 INFO L131 PetriNetUnfolder]: For 66/67 co-relation queries the response was YES. [2023-08-29 18:58:05,824 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4625 conditions, 3121 events. 915/3121 cut-off events. For 66/67 co-relation queries the response was YES. Maximal size of possible extension queue 105. Compared 25597 event pairs, 477 based on Foata normal form. 0/2485 useless extension candidates. Maximal degree in co-relation 4619. Up to 1282 conditions per place. [2023-08-29 18:58:05,834 INFO L137 encePairwiseOnDemand]: 847/850 looper letters, 70 selfloop transitions, 2 changer transitions 0/166 dead transitions. [2023-08-29 18:58:05,835 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 166 transitions, 506 flow [2023-08-29 18:58:05,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 18:58:05,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 18:58:05,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1409 transitions. [2023-08-29 18:58:05,844 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5525490196078431 [2023-08-29 18:58:05,844 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1409 transitions. [2023-08-29 18:58:05,844 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1409 transitions. [2023-08-29 18:58:05,844 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:58:05,845 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1409 transitions. [2023-08-29 18:58:05,848 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 469.6666666666667) internal successors, (1409), 3 states have internal predecessors, (1409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:58:05,852 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 850.0) internal successors, (3400), 4 states have internal predecessors, (3400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:58:05,853 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 850.0) internal successors, (3400), 4 states have internal predecessors, (3400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:58:05,853 INFO L175 Difference]: Start difference. First operand has 140 places, 142 transitions, 311 flow. Second operand 3 states and 1409 transitions. [2023-08-29 18:58:05,853 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 166 transitions, 506 flow [2023-08-29 18:58:05,855 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 166 transitions, 505 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 18:58:05,857 INFO L231 Difference]: Finished difference. Result has 142 places, 143 transitions, 322 flow [2023-08-29 18:58:05,857 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=850, PETRI_DIFFERENCE_MINUEND_FLOW=310, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=140, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=322, PETRI_PLACES=142, PETRI_TRANSITIONS=143} [2023-08-29 18:58:05,858 INFO L281 CegarLoopForPetriNet]: 173 programPoint places, -31 predicate places. [2023-08-29 18:58:05,858 INFO L495 AbstractCegarLoop]: Abstraction has has 142 places, 143 transitions, 322 flow [2023-08-29 18:58:05,859 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 448.6666666666667) internal successors, (1346), 3 states have internal predecessors, (1346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:58:05,859 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:58:05,859 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:58:05,859 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-29 18:58:05,860 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2023-08-29 18:58:05,860 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:58:05,860 INFO L85 PathProgramCache]: Analyzing trace with hash 1482516808, now seen corresponding path program 1 times [2023-08-29 18:58:05,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:58:05,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81231098] [2023-08-29 18:58:05,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:58:05,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:58:05,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:58:05,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 18:58:05,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:58:05,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81231098] [2023-08-29 18:58:05,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [81231098] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:58:05,904 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:58:05,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-29 18:58:05,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705028457] [2023-08-29 18:58:05,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:58:05,905 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 18:58:05,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:58:05,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 18:58:05,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 18:58:05,916 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 446 out of 850 [2023-08-29 18:58:05,918 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 143 transitions, 322 flow. Second operand has 3 states, 3 states have (on average 449.3333333333333) internal successors, (1348), 3 states have internal predecessors, (1348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:58:05,918 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:58:05,918 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 446 of 850 [2023-08-29 18:58:05,918 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:58:06,243 INFO L130 PetriNetUnfolder]: 963/3200 cut-off events. [2023-08-29 18:58:06,244 INFO L131 PetriNetUnfolder]: For 219/226 co-relation queries the response was YES. [2023-08-29 18:58:06,252 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4962 conditions, 3200 events. 963/3200 cut-off events. For 219/226 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 25988 event pairs, 523 based on Foata normal form. 0/2594 useless extension candidates. Maximal degree in co-relation 4955. Up to 1374 conditions per place. [2023-08-29 18:58:06,260 INFO L137 encePairwiseOnDemand]: 847/850 looper letters, 67 selfloop transitions, 2 changer transitions 0/163 dead transitions. [2023-08-29 18:58:06,260 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 163 transitions, 513 flow [2023-08-29 18:58:06,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 18:58:06,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 18:58:06,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1404 transitions. [2023-08-29 18:58:06,264 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5505882352941176 [2023-08-29 18:58:06,264 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1404 transitions. [2023-08-29 18:58:06,264 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1404 transitions. [2023-08-29 18:58:06,265 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:58:06,265 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1404 transitions. [2023-08-29 18:58:06,270 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 468.0) internal successors, (1404), 3 states have internal predecessors, (1404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:58:06,274 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 850.0) internal successors, (3400), 4 states have internal predecessors, (3400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:58:06,274 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 850.0) internal successors, (3400), 4 states have internal predecessors, (3400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:58:06,275 INFO L175 Difference]: Start difference. First operand has 142 places, 143 transitions, 322 flow. Second operand 3 states and 1404 transitions. [2023-08-29 18:58:06,275 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 163 transitions, 513 flow [2023-08-29 18:58:06,279 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 163 transitions, 509 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 18:58:06,281 INFO L231 Difference]: Finished difference. Result has 144 places, 144 transitions, 332 flow [2023-08-29 18:58:06,281 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=850, PETRI_DIFFERENCE_MINUEND_FLOW=320, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=143, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=141, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=332, PETRI_PLACES=144, PETRI_TRANSITIONS=144} [2023-08-29 18:58:06,284 INFO L281 CegarLoopForPetriNet]: 173 programPoint places, -29 predicate places. [2023-08-29 18:58:06,284 INFO L495 AbstractCegarLoop]: Abstraction has has 144 places, 144 transitions, 332 flow [2023-08-29 18:58:06,284 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 449.3333333333333) internal successors, (1348), 3 states have internal predecessors, (1348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:58:06,285 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:58:06,285 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:58:06,285 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-29 18:58:06,285 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2023-08-29 18:58:06,293 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:58:06,293 INFO L85 PathProgramCache]: Analyzing trace with hash -1615897533, now seen corresponding path program 1 times [2023-08-29 18:58:06,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:58:06,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287242132] [2023-08-29 18:58:06,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:58:06,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:58:06,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:58:06,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 18:58:06,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:58:06,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287242132] [2023-08-29 18:58:06,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287242132] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:58:06,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:58:06,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 18:58:06,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78443771] [2023-08-29 18:58:06,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:58:06,322 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 18:58:06,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:58:06,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 18:58:06,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 18:58:06,335 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 441 out of 850 [2023-08-29 18:58:06,336 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 144 transitions, 332 flow. Second operand has 3 states, 3 states have (on average 444.3333333333333) internal successors, (1333), 3 states have internal predecessors, (1333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:58:06,336 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:58:06,336 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 441 of 850 [2023-08-29 18:58:06,336 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:58:06,806 INFO L130 PetriNetUnfolder]: 1895/5228 cut-off events. [2023-08-29 18:58:06,806 INFO L131 PetriNetUnfolder]: For 521/522 co-relation queries the response was YES. [2023-08-29 18:58:06,823 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8872 conditions, 5228 events. 1895/5228 cut-off events. For 521/522 co-relation queries the response was YES. Maximal size of possible extension queue 164. Compared 42400 event pairs, 391 based on Foata normal form. 0/4434 useless extension candidates. Maximal degree in co-relation 8864. Up to 2058 conditions per place. [2023-08-29 18:58:06,839 INFO L137 encePairwiseOnDemand]: 844/850 looper letters, 88 selfloop transitions, 2 changer transitions 0/173 dead transitions. [2023-08-29 18:58:06,839 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 173 transitions, 594 flow [2023-08-29 18:58:06,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 18:58:06,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 18:58:06,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1411 transitions. [2023-08-29 18:58:06,843 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5533333333333333 [2023-08-29 18:58:06,843 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1411 transitions. [2023-08-29 18:58:06,843 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1411 transitions. [2023-08-29 18:58:06,844 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:58:06,844 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1411 transitions. [2023-08-29 18:58:06,846 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 470.3333333333333) internal successors, (1411), 3 states have internal predecessors, (1411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:58:06,849 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 850.0) internal successors, (3400), 4 states have internal predecessors, (3400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:58:06,850 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 850.0) internal successors, (3400), 4 states have internal predecessors, (3400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:58:06,850 INFO L175 Difference]: Start difference. First operand has 144 places, 144 transitions, 332 flow. Second operand 3 states and 1411 transitions. [2023-08-29 18:58:06,850 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 173 transitions, 594 flow [2023-08-29 18:58:06,854 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 173 transitions, 590 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 18:58:06,855 INFO L231 Difference]: Finished difference. Result has 142 places, 142 transitions, 338 flow [2023-08-29 18:58:06,856 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=850, PETRI_DIFFERENCE_MINUEND_FLOW=322, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=338, PETRI_PLACES=142, PETRI_TRANSITIONS=142} [2023-08-29 18:58:06,856 INFO L281 CegarLoopForPetriNet]: 173 programPoint places, -31 predicate places. [2023-08-29 18:58:06,856 INFO L495 AbstractCegarLoop]: Abstraction has has 142 places, 142 transitions, 338 flow [2023-08-29 18:58:06,857 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 444.3333333333333) internal successors, (1333), 3 states have internal predecessors, (1333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:58:06,857 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:58:06,857 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:58:06,857 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-29 18:58:06,857 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread2Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2023-08-29 18:58:06,858 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:58:06,858 INFO L85 PathProgramCache]: Analyzing trace with hash -1238618328, now seen corresponding path program 1 times [2023-08-29 18:58:06,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:58:06,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5524920] [2023-08-29 18:58:06,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:58:06,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:58:06,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:58:06,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 18:58:06,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:58:06,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5524920] [2023-08-29 18:58:06,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [5524920] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:58:06,892 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:58:06,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 18:58:06,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515860447] [2023-08-29 18:58:06,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:58:06,893 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 18:58:06,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:58:06,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 18:58:06,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 18:58:06,905 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 441 out of 850 [2023-08-29 18:58:06,906 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 142 transitions, 338 flow. Second operand has 3 states, 3 states have (on average 445.0) internal successors, (1335), 3 states have internal predecessors, (1335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:58:06,906 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:58:06,907 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 441 of 850 [2023-08-29 18:58:06,907 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:58:07,329 INFO L130 PetriNetUnfolder]: 1828/4996 cut-off events. [2023-08-29 18:58:07,330 INFO L131 PetriNetUnfolder]: For 547/554 co-relation queries the response was YES. [2023-08-29 18:58:07,347 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8612 conditions, 4996 events. 1828/4996 cut-off events. For 547/554 co-relation queries the response was YES. Maximal size of possible extension queue 162. Compared 40233 event pairs, 361 based on Foata normal form. 0/4387 useless extension candidates. Maximal degree in co-relation 8604. Up to 1993 conditions per place. [2023-08-29 18:58:07,362 INFO L137 encePairwiseOnDemand]: 844/850 looper letters, 86 selfloop transitions, 2 changer transitions 0/170 dead transitions. [2023-08-29 18:58:07,362 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 170 transitions, 595 flow [2023-08-29 18:58:07,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 18:58:07,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 18:58:07,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1408 transitions. [2023-08-29 18:58:07,366 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.552156862745098 [2023-08-29 18:58:07,366 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1408 transitions. [2023-08-29 18:58:07,367 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1408 transitions. [2023-08-29 18:58:07,367 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:58:07,367 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1408 transitions. [2023-08-29 18:58:07,370 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 469.3333333333333) internal successors, (1408), 3 states have internal predecessors, (1408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:58:07,373 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 850.0) internal successors, (3400), 4 states have internal predecessors, (3400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:58:07,374 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 850.0) internal successors, (3400), 4 states have internal predecessors, (3400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:58:07,374 INFO L175 Difference]: Start difference. First operand has 142 places, 142 transitions, 338 flow. Second operand 3 states and 1408 transitions. [2023-08-29 18:58:07,374 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 170 transitions, 595 flow [2023-08-29 18:58:07,377 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 170 transitions, 595 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 18:58:07,379 INFO L231 Difference]: Finished difference. Result has 141 places, 140 transitions, 346 flow [2023-08-29 18:58:07,379 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=850, PETRI_DIFFERENCE_MINUEND_FLOW=330, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=136, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=346, PETRI_PLACES=141, PETRI_TRANSITIONS=140} [2023-08-29 18:58:07,380 INFO L281 CegarLoopForPetriNet]: 173 programPoint places, -32 predicate places. [2023-08-29 18:58:07,380 INFO L495 AbstractCegarLoop]: Abstraction has has 141 places, 140 transitions, 346 flow [2023-08-29 18:58:07,380 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 445.0) internal successors, (1335), 3 states have internal predecessors, (1335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:58:07,380 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:58:07,380 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:58:07,380 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-29 18:58:07,381 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2023-08-29 18:58:07,381 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:58:07,381 INFO L85 PathProgramCache]: Analyzing trace with hash 1022349609, now seen corresponding path program 1 times [2023-08-29 18:58:07,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:58:07,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993906560] [2023-08-29 18:58:07,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:58:07,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:58:07,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:58:07,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 18:58:07,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:58:07,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993906560] [2023-08-29 18:58:07,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1993906560] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:58:07,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:58:07,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-29 18:58:07,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727326804] [2023-08-29 18:58:07,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:58:07,459 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-29 18:58:07,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:58:07,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-29 18:58:07,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-29 18:58:07,620 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 442 out of 850 [2023-08-29 18:58:07,622 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 140 transitions, 346 flow. Second operand has 5 states, 5 states have (on average 443.8) internal successors, (2219), 5 states have internal predecessors, (2219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:58:07,622 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:58:07,622 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 442 of 850 [2023-08-29 18:58:07,622 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:58:08,265 INFO L130 PetriNetUnfolder]: 2533/7033 cut-off events. [2023-08-29 18:58:08,266 INFO L131 PetriNetUnfolder]: For 1008/1026 co-relation queries the response was YES. [2023-08-29 18:58:08,291 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12430 conditions, 7033 events. 2533/7033 cut-off events. For 1008/1026 co-relation queries the response was YES. Maximal size of possible extension queue 231. Compared 63485 event pairs, 1182 based on Foata normal form. 58/6222 useless extension candidates. Maximal degree in co-relation 12421. Up to 2296 conditions per place. [2023-08-29 18:58:08,310 INFO L137 encePairwiseOnDemand]: 845/850 looper letters, 118 selfloop transitions, 4 changer transitions 0/210 dead transitions. [2023-08-29 18:58:08,311 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 210 transitions, 782 flow [2023-08-29 18:58:08,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-29 18:58:08,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-29 18:58:08,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 2321 transitions. [2023-08-29 18:58:08,316 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5461176470588235 [2023-08-29 18:58:08,316 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 2321 transitions. [2023-08-29 18:58:08,316 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 2321 transitions. [2023-08-29 18:58:08,318 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:58:08,318 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 2321 transitions. [2023-08-29 18:58:08,321 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 464.2) internal successors, (2321), 5 states have internal predecessors, (2321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:58:08,326 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 850.0) internal successors, (5100), 6 states have internal predecessors, (5100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:58:08,327 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 850.0) internal successors, (5100), 6 states have internal predecessors, (5100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:58:08,327 INFO L175 Difference]: Start difference. First operand has 141 places, 140 transitions, 346 flow. Second operand 5 states and 2321 transitions. [2023-08-29 18:58:08,327 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 210 transitions, 782 flow [2023-08-29 18:58:08,335 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 210 transitions, 782 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 18:58:08,337 INFO L231 Difference]: Finished difference. Result has 148 places, 143 transitions, 375 flow [2023-08-29 18:58:08,337 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=850, PETRI_DIFFERENCE_MINUEND_FLOW=346, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=136, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=375, PETRI_PLACES=148, PETRI_TRANSITIONS=143} [2023-08-29 18:58:08,338 INFO L281 CegarLoopForPetriNet]: 173 programPoint places, -25 predicate places. [2023-08-29 18:58:08,338 INFO L495 AbstractCegarLoop]: Abstraction has has 148 places, 143 transitions, 375 flow [2023-08-29 18:58:08,338 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 443.8) internal successors, (2219), 5 states have internal predecessors, (2219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:58:08,339 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:58:08,339 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:58:08,339 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-29 18:58:08,339 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread1Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2023-08-29 18:58:08,339 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:58:08,339 INFO L85 PathProgramCache]: Analyzing trace with hash -1194172968, now seen corresponding path program 1 times [2023-08-29 18:58:08,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:58:08,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315376788] [2023-08-29 18:58:08,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:58:08,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:58:08,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:58:08,448 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-29 18:58:08,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:58:08,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315376788] [2023-08-29 18:58:08,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [315376788] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:58:08,449 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:58:08,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-29 18:58:08,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332615815] [2023-08-29 18:58:08,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:58:08,449 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 18:58:08,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:58:08,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 18:58:08,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-08-29 18:58:08,655 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 434 out of 850 [2023-08-29 18:58:08,657 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 143 transitions, 375 flow. Second operand has 6 states, 6 states have (on average 435.6666666666667) internal successors, (2614), 6 states have internal predecessors, (2614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:58:08,657 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:58:08,657 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 434 of 850 [2023-08-29 18:58:08,657 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:58:09,804 INFO L130 PetriNetUnfolder]: 4772/12790 cut-off events. [2023-08-29 18:58:09,804 INFO L131 PetriNetUnfolder]: For 2450/2512 co-relation queries the response was YES. [2023-08-29 18:58:09,846 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23496 conditions, 12790 events. 4772/12790 cut-off events. For 2450/2512 co-relation queries the response was YES. Maximal size of possible extension queue 403. Compared 127299 event pairs, 1998 based on Foata normal form. 76/11542 useless extension candidates. Maximal degree in co-relation 23483. Up to 3612 conditions per place. [2023-08-29 18:58:09,886 INFO L137 encePairwiseOnDemand]: 842/850 looper letters, 165 selfloop transitions, 12 changer transitions 0/265 dead transitions. [2023-08-29 18:58:09,886 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 154 places, 265 transitions, 1070 flow [2023-08-29 18:58:09,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-29 18:58:09,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-29 18:58:09,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 3196 transitions. [2023-08-29 18:58:09,894 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5371428571428571 [2023-08-29 18:58:09,894 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 3196 transitions. [2023-08-29 18:58:09,894 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 3196 transitions. [2023-08-29 18:58:09,896 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:58:09,896 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 3196 transitions. [2023-08-29 18:58:09,901 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 456.57142857142856) internal successors, (3196), 7 states have internal predecessors, (3196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:58:09,908 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 850.0) internal successors, (6800), 8 states have internal predecessors, (6800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:58:09,909 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 850.0) internal successors, (6800), 8 states have internal predecessors, (6800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:58:09,909 INFO L175 Difference]: Start difference. First operand has 148 places, 143 transitions, 375 flow. Second operand 7 states and 3196 transitions. [2023-08-29 18:58:09,909 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 154 places, 265 transitions, 1070 flow [2023-08-29 18:58:09,929 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 265 transitions, 1066 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-08-29 18:58:09,932 INFO L231 Difference]: Finished difference. Result has 157 places, 151 transitions, 456 flow [2023-08-29 18:58:09,932 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=850, PETRI_DIFFERENCE_MINUEND_FLOW=371, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=143, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=456, PETRI_PLACES=157, PETRI_TRANSITIONS=151} [2023-08-29 18:58:09,932 INFO L281 CegarLoopForPetriNet]: 173 programPoint places, -16 predicate places. [2023-08-29 18:58:09,933 INFO L495 AbstractCegarLoop]: Abstraction has has 157 places, 151 transitions, 456 flow [2023-08-29 18:58:09,933 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 435.6666666666667) internal successors, (2614), 6 states have internal predecessors, (2614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:58:09,933 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:58:09,934 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:58:09,934 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-29 18:58:09,934 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2023-08-29 18:58:09,934 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:58:09,934 INFO L85 PathProgramCache]: Analyzing trace with hash 1957085854, now seen corresponding path program 1 times [2023-08-29 18:58:09,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:58:09,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96916008] [2023-08-29 18:58:09,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:58:09,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:58:09,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:58:10,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 18:58:10,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:58:10,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96916008] [2023-08-29 18:58:10,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [96916008] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:58:10,020 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:58:10,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 18:58:10,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051408164] [2023-08-29 18:58:10,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:58:10,020 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 18:58:10,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:58:10,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 18:58:10,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-08-29 18:58:10,242 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 434 out of 850 [2023-08-29 18:58:10,244 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 151 transitions, 456 flow. Second operand has 6 states, 6 states have (on average 436.0) internal successors, (2616), 6 states have internal predecessors, (2616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:58:10,244 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:58:10,244 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 434 of 850 [2023-08-29 18:58:10,244 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:58:11,092 INFO L130 PetriNetUnfolder]: 3584/9636 cut-off events. [2023-08-29 18:58:11,092 INFO L131 PetriNetUnfolder]: For 4333/4375 co-relation queries the response was YES. [2023-08-29 18:58:11,128 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18887 conditions, 9636 events. 3584/9636 cut-off events. For 4333/4375 co-relation queries the response was YES. Maximal size of possible extension queue 299. Compared 89883 event pairs, 1854 based on Foata normal form. 52/8689 useless extension candidates. Maximal degree in co-relation 18870. Up to 3980 conditions per place. [2023-08-29 18:58:11,160 INFO L137 encePairwiseOnDemand]: 842/850 looper letters, 142 selfloop transitions, 10 changer transitions 0/240 dead transitions. [2023-08-29 18:58:11,160 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 163 places, 240 transitions, 1126 flow [2023-08-29 18:58:11,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-29 18:58:11,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-29 18:58:11,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 3158 transitions. [2023-08-29 18:58:11,168 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5307563025210084 [2023-08-29 18:58:11,168 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 3158 transitions. [2023-08-29 18:58:11,168 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 3158 transitions. [2023-08-29 18:58:11,170 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:58:11,170 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 3158 transitions. [2023-08-29 18:58:11,176 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 451.14285714285717) internal successors, (3158), 7 states have internal predecessors, (3158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:58:11,183 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 850.0) internal successors, (6800), 8 states have internal predecessors, (6800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:58:11,184 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 850.0) internal successors, (6800), 8 states have internal predecessors, (6800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:58:11,184 INFO L175 Difference]: Start difference. First operand has 157 places, 151 transitions, 456 flow. Second operand 7 states and 3158 transitions. [2023-08-29 18:58:11,184 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 163 places, 240 transitions, 1126 flow [2023-08-29 18:58:11,198 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 163 places, 240 transitions, 1122 flow, removed 2 selfloop flow, removed 0 redundant places. [2023-08-29 18:58:11,200 INFO L231 Difference]: Finished difference. Result has 166 places, 156 transitions, 509 flow [2023-08-29 18:58:11,201 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=850, PETRI_DIFFERENCE_MINUEND_FLOW=454, PETRI_DIFFERENCE_MINUEND_PLACES=157, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=151, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=143, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=509, PETRI_PLACES=166, PETRI_TRANSITIONS=156} [2023-08-29 18:58:11,201 INFO L281 CegarLoopForPetriNet]: 173 programPoint places, -7 predicate places. [2023-08-29 18:58:11,201 INFO L495 AbstractCegarLoop]: Abstraction has has 166 places, 156 transitions, 509 flow [2023-08-29 18:58:11,202 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 436.0) internal successors, (2616), 6 states have internal predecessors, (2616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:58:11,202 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:58:11,202 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:58:11,202 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-29 18:58:11,203 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2023-08-29 18:58:11,203 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:58:11,203 INFO L85 PathProgramCache]: Analyzing trace with hash -1480564338, now seen corresponding path program 1 times [2023-08-29 18:58:11,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:58:11,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458223339] [2023-08-29 18:58:11,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:58:11,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:58:11,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:58:11,501 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-29 18:58:11,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:58:11,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458223339] [2023-08-29 18:58:11,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458223339] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:58:11,502 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:58:11,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 18:58:11,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990248064] [2023-08-29 18:58:11,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:58:11,503 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 18:58:11,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:58:11,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 18:58:11,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 18:58:11,941 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 430 out of 850 [2023-08-29 18:58:11,943 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 166 places, 156 transitions, 509 flow. Second operand has 6 states, 6 states have (on average 432.6666666666667) internal successors, (2596), 6 states have internal predecessors, (2596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:58:11,943 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:58:11,943 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 430 of 850 [2023-08-29 18:58:11,943 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:58:12,908 INFO L130 PetriNetUnfolder]: 4627/11546 cut-off events. [2023-08-29 18:58:12,908 INFO L131 PetriNetUnfolder]: For 6667/6689 co-relation queries the response was YES. [2023-08-29 18:58:12,949 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23981 conditions, 11546 events. 4627/11546 cut-off events. For 6667/6689 co-relation queries the response was YES. Maximal size of possible extension queue 315. Compared 104875 event pairs, 2206 based on Foata normal form. 0/10585 useless extension candidates. Maximal degree in co-relation 23960. Up to 5448 conditions per place. [2023-08-29 18:58:12,977 INFO L137 encePairwiseOnDemand]: 843/850 looper letters, 178 selfloop transitions, 5 changer transitions 0/259 dead transitions. [2023-08-29 18:58:12,977 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 259 transitions, 1202 flow [2023-08-29 18:58:12,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 18:58:12,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 18:58:12,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2735 transitions. [2023-08-29 18:58:12,984 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5362745098039216 [2023-08-29 18:58:12,984 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2735 transitions. [2023-08-29 18:58:12,984 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2735 transitions. [2023-08-29 18:58:12,985 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:58:12,986 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2735 transitions. [2023-08-29 18:58:12,990 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 455.8333333333333) internal successors, (2735), 6 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) [2023-08-29 18:58:12,995 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 850.0) internal successors, (5950), 7 states have internal predecessors, (5950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:58:12,996 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 850.0) internal successors, (5950), 7 states have internal predecessors, (5950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:58:12,996 INFO L175 Difference]: Start difference. First operand has 166 places, 156 transitions, 509 flow. Second operand 6 states and 2735 transitions. [2023-08-29 18:58:12,996 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 259 transitions, 1202 flow [2023-08-29 18:58:13,019 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 168 places, 259 transitions, 1199 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 18:58:13,022 INFO L231 Difference]: Finished difference. Result has 168 places, 154 transitions, 512 flow [2023-08-29 18:58:13,022 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=850, PETRI_DIFFERENCE_MINUEND_FLOW=502, PETRI_DIFFERENCE_MINUEND_PLACES=163, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=154, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=149, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=512, PETRI_PLACES=168, PETRI_TRANSITIONS=154} [2023-08-29 18:58:13,023 INFO L281 CegarLoopForPetriNet]: 173 programPoint places, -5 predicate places. [2023-08-29 18:58:13,023 INFO L495 AbstractCegarLoop]: Abstraction has has 168 places, 154 transitions, 512 flow [2023-08-29 18:58:13,024 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 432.6666666666667) internal successors, (2596), 6 states have internal predecessors, (2596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:58:13,024 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:58:13,024 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:58:13,024 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-29 18:58:13,024 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thread2Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2023-08-29 18:58:13,024 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:58:13,025 INFO L85 PathProgramCache]: Analyzing trace with hash 1964362703, now seen corresponding path program 1 times [2023-08-29 18:58:13,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:58:13,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554489338] [2023-08-29 18:58:13,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:58:13,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:58:13,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:58:13,122 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-29 18:58:13,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:58:13,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554489338] [2023-08-29 18:58:13,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1554489338] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:58:13,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:58:13,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 18:58:13,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967407127] [2023-08-29 18:58:13,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:58:13,124 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-29 18:58:13,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:58:13,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-29 18:58:13,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-29 18:58:13,289 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 442 out of 850 [2023-08-29 18:58:13,291 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 154 transitions, 512 flow. Second operand has 5 states, 5 states have (on average 444.6) internal successors, (2223), 5 states have internal predecessors, (2223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:58:13,291 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:58:13,291 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 442 of 850 [2023-08-29 18:58:13,291 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:58:13,986 INFO L130 PetriNetUnfolder]: 2871/7916 cut-off events. [2023-08-29 18:58:13,987 INFO L131 PetriNetUnfolder]: For 4199/4237 co-relation queries the response was YES. [2023-08-29 18:58:14,018 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16176 conditions, 7916 events. 2871/7916 cut-off events. For 4199/4237 co-relation queries the response was YES. Maximal size of possible extension queue 271. Compared 69400 event pairs, 1608 based on Foata normal form. 52/7273 useless extension candidates. Maximal degree in co-relation 16154. Up to 3349 conditions per place. [2023-08-29 18:58:14,037 INFO L137 encePairwiseOnDemand]: 845/850 looper letters, 105 selfloop transitions, 6 changer transitions 0/197 dead transitions. [2023-08-29 18:58:14,037 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 172 places, 197 transitions, 902 flow [2023-08-29 18:58:14,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-29 18:58:14,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-29 18:58:14,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 2299 transitions. [2023-08-29 18:58:14,043 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5409411764705883 [2023-08-29 18:58:14,043 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 2299 transitions. [2023-08-29 18:58:14,043 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 2299 transitions. [2023-08-29 18:58:14,044 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:58:14,044 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 2299 transitions. [2023-08-29 18:58:14,048 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 459.8) internal successors, (2299), 5 states have internal predecessors, (2299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:58:14,052 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 850.0) internal successors, (5100), 6 states have internal predecessors, (5100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:58:14,053 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 850.0) internal successors, (5100), 6 states have internal predecessors, (5100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:58:14,053 INFO L175 Difference]: Start difference. First operand has 168 places, 154 transitions, 512 flow. Second operand 5 states and 2299 transitions. [2023-08-29 18:58:14,053 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 172 places, 197 transitions, 902 flow [2023-08-29 18:58:14,072 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 167 places, 197 transitions, 892 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-29 18:58:14,075 INFO L231 Difference]: Finished difference. Result has 169 places, 156 transitions, 535 flow [2023-08-29 18:58:14,075 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=850, PETRI_DIFFERENCE_MINUEND_FLOW=502, PETRI_DIFFERENCE_MINUEND_PLACES=163, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=154, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=148, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=535, PETRI_PLACES=169, PETRI_TRANSITIONS=156} [2023-08-29 18:58:14,076 INFO L281 CegarLoopForPetriNet]: 173 programPoint places, -4 predicate places. [2023-08-29 18:58:14,076 INFO L495 AbstractCegarLoop]: Abstraction has has 169 places, 156 transitions, 535 flow [2023-08-29 18:58:14,076 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 444.6) internal successors, (2223), 5 states have internal predecessors, (2223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:58:14,076 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:58:14,077 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:58:14,077 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-08-29 18:58:14,077 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting thread2Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2023-08-29 18:58:14,077 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:58:14,077 INFO L85 PathProgramCache]: Analyzing trace with hash 1676164825, now seen corresponding path program 1 times [2023-08-29 18:58:14,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:58:14,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362958830] [2023-08-29 18:58:14,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:58:14,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:58:14,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:58:14,317 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-29 18:58:14,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:58:14,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362958830] [2023-08-29 18:58:14,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1362958830] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:58:14,318 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:58:14,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 18:58:14,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508434820] [2023-08-29 18:58:14,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:58:14,318 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 18:58:14,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:58:14,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 18:58:14,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 18:58:14,730 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 430 out of 850 [2023-08-29 18:58:14,731 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 169 places, 156 transitions, 535 flow. Second operand has 6 states, 6 states have (on average 433.1666666666667) internal successors, (2599), 6 states have internal predecessors, (2599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:58:14,732 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:58:14,732 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 430 of 850 [2023-08-29 18:58:14,732 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:58:15,468 INFO L130 PetriNetUnfolder]: 3446/8161 cut-off events. [2023-08-29 18:58:15,468 INFO L131 PetriNetUnfolder]: For 5608/5630 co-relation queries the response was YES. [2023-08-29 18:58:15,494 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17802 conditions, 8161 events. 3446/8161 cut-off events. For 5608/5630 co-relation queries the response was YES. Maximal size of possible extension queue 290. Compared 69402 event pairs, 1478 based on Foata normal form. 0/7489 useless extension candidates. Maximal degree in co-relation 17778. Up to 3777 conditions per place. [2023-08-29 18:58:15,512 INFO L137 encePairwiseOnDemand]: 843/850 looper letters, 157 selfloop transitions, 5 changer transitions 0/237 dead transitions. [2023-08-29 18:58:15,512 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 172 places, 237 transitions, 1165 flow [2023-08-29 18:58:15,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 18:58:15,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 18:58:15,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2712 transitions. [2023-08-29 18:58:15,518 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5317647058823529 [2023-08-29 18:58:15,518 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2712 transitions. [2023-08-29 18:58:15,518 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2712 transitions. [2023-08-29 18:58:15,519 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:58:15,519 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2712 transitions. [2023-08-29 18:58:15,523 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 452.0) internal successors, (2712), 6 states have internal predecessors, (2712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:58:15,528 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 850.0) internal successors, (5950), 7 states have internal predecessors, (5950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:58:15,529 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 850.0) internal successors, (5950), 7 states have internal predecessors, (5950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:58:15,529 INFO L175 Difference]: Start difference. First operand has 169 places, 156 transitions, 535 flow. Second operand 6 states and 2712 transitions. [2023-08-29 18:58:15,529 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 172 places, 237 transitions, 1165 flow [2023-08-29 18:58:15,548 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 170 places, 237 transitions, 1158 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 18:58:15,551 INFO L231 Difference]: Finished difference. Result has 170 places, 154 transitions, 534 flow [2023-08-29 18:58:15,551 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=850, PETRI_DIFFERENCE_MINUEND_FLOW=524, PETRI_DIFFERENCE_MINUEND_PLACES=165, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=154, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=149, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=534, PETRI_PLACES=170, PETRI_TRANSITIONS=154} [2023-08-29 18:58:15,551 INFO L281 CegarLoopForPetriNet]: 173 programPoint places, -3 predicate places. [2023-08-29 18:58:15,551 INFO L495 AbstractCegarLoop]: Abstraction has has 170 places, 154 transitions, 534 flow [2023-08-29 18:58:15,552 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 433.1666666666667) internal successors, (2599), 6 states have internal predecessors, (2599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:58:15,552 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:58:15,552 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:58:15,552 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-08-29 18:58:15,553 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2023-08-29 18:58:15,553 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:58:15,553 INFO L85 PathProgramCache]: Analyzing trace with hash -778634985, now seen corresponding path program 1 times [2023-08-29 18:58:15,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:58:15,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511172536] [2023-08-29 18:58:15,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:58:15,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:58:15,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:58:15,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 18:58:15,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:58:15,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511172536] [2023-08-29 18:58:15,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1511172536] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:58:15,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:58:15,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-29 18:58:15,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651828059] [2023-08-29 18:58:15,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:58:15,654 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 18:58:15,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:58:15,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 18:58:15,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 18:58:15,660 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 451 out of 850 [2023-08-29 18:58:15,661 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 154 transitions, 534 flow. Second operand has 3 states, 3 states have (on average 455.6666666666667) internal successors, (1367), 3 states have internal predecessors, (1367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:58:15,661 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:58:15,661 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 451 of 850 [2023-08-29 18:58:15,661 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:58:16,346 INFO L130 PetriNetUnfolder]: 2817/7592 cut-off events. [2023-08-29 18:58:16,346 INFO L131 PetriNetUnfolder]: For 4643/4669 co-relation queries the response was YES. [2023-08-29 18:58:16,364 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15996 conditions, 7592 events. 2817/7592 cut-off events. For 4643/4669 co-relation queries the response was YES. Maximal size of possible extension queue 242. Compared 65467 event pairs, 1228 based on Foata normal form. 0/7099 useless extension candidates. Maximal degree in co-relation 15972. Up to 3845 conditions per place. [2023-08-29 18:58:16,376 INFO L137 encePairwiseOnDemand]: 847/850 looper letters, 104 selfloop transitions, 3 changer transitions 0/191 dead transitions. [2023-08-29 18:58:16,376 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 172 places, 191 transitions, 904 flow [2023-08-29 18:58:16,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 18:58:16,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 18:58:16,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1427 transitions. [2023-08-29 18:58:16,379 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5596078431372549 [2023-08-29 18:58:16,380 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1427 transitions. [2023-08-29 18:58:16,380 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1427 transitions. [2023-08-29 18:58:16,381 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:58:16,381 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1427 transitions. [2023-08-29 18:58:16,385 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 475.6666666666667) internal successors, (1427), 3 states have internal predecessors, (1427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:58:16,387 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 850.0) internal successors, (3400), 4 states have internal predecessors, (3400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:58:16,388 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 850.0) internal successors, (3400), 4 states have internal predecessors, (3400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:58:16,388 INFO L175 Difference]: Start difference. First operand has 170 places, 154 transitions, 534 flow. Second operand 3 states and 1427 transitions. [2023-08-29 18:58:16,388 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 172 places, 191 transitions, 904 flow [2023-08-29 18:58:16,405 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 167 places, 191 transitions, 892 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-29 18:58:16,407 INFO L231 Difference]: Finished difference. Result has 168 places, 154 transitions, 535 flow [2023-08-29 18:58:16,407 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=850, PETRI_DIFFERENCE_MINUEND_FLOW=524, PETRI_DIFFERENCE_MINUEND_PLACES=165, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=154, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=151, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=535, PETRI_PLACES=168, PETRI_TRANSITIONS=154} [2023-08-29 18:58:16,407 INFO L281 CegarLoopForPetriNet]: 173 programPoint places, -5 predicate places. [2023-08-29 18:58:16,408 INFO L495 AbstractCegarLoop]: Abstraction has has 168 places, 154 transitions, 535 flow [2023-08-29 18:58:16,408 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 455.6666666666667) internal successors, (1367), 3 states have internal predecessors, (1367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:58:16,408 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:58:16,409 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:58:16,409 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-08-29 18:58:16,409 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2023-08-29 18:58:16,409 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:58:16,409 INFO L85 PathProgramCache]: Analyzing trace with hash 776978907, now seen corresponding path program 1 times [2023-08-29 18:58:16,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:58:16,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392388564] [2023-08-29 18:58:16,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:58:16,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:58:16,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:58:16,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 18:58:16,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:58:16,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392388564] [2023-08-29 18:58:16,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [392388564] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:58:16,678 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:58:16,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 18:58:16,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772883054] [2023-08-29 18:58:16,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:58:16,679 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 18:58:16,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:58:16,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 18:58:16,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 18:58:17,013 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 437 out of 850 [2023-08-29 18:58:17,015 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 154 transitions, 535 flow. Second operand has 6 states, 6 states have (on average 439.6666666666667) internal successors, (2638), 6 states have internal predecessors, (2638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:58:17,015 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:58:17,015 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 437 of 850 [2023-08-29 18:58:17,015 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:58:17,682 INFO L130 PetriNetUnfolder]: 3192/8141 cut-off events. [2023-08-29 18:58:17,682 INFO L131 PetriNetUnfolder]: For 6221/6229 co-relation queries the response was YES. [2023-08-29 18:58:17,711 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17900 conditions, 8141 events. 3192/8141 cut-off events. For 6221/6229 co-relation queries the response was YES. Maximal size of possible extension queue 250. Compared 70220 event pairs, 1870 based on Foata normal form. 0/7685 useless extension candidates. Maximal degree in co-relation 17875. Up to 4208 conditions per place. [2023-08-29 18:58:17,722 INFO L137 encePairwiseOnDemand]: 845/850 looper letters, 106 selfloop transitions, 4 changer transitions 80/269 dead transitions. [2023-08-29 18:58:17,722 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 172 places, 269 transitions, 1445 flow [2023-08-29 18:58:17,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 18:58:17,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 18:58:17,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2753 transitions. [2023-08-29 18:58:17,727 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5398039215686274 [2023-08-29 18:58:17,727 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2753 transitions. [2023-08-29 18:58:17,728 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2753 transitions. [2023-08-29 18:58:17,728 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:58:17,728 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2753 transitions. [2023-08-29 18:58:17,731 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 458.8333333333333) internal successors, (2753), 6 states have internal predecessors, (2753), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:58:17,736 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 850.0) internal successors, (5950), 7 states have internal predecessors, (5950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:58:17,736 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 850.0) internal successors, (5950), 7 states have internal predecessors, (5950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:58:17,736 INFO L175 Difference]: Start difference. First operand has 168 places, 154 transitions, 535 flow. Second operand 6 states and 2753 transitions. [2023-08-29 18:58:17,736 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 172 places, 269 transitions, 1445 flow [2023-08-29 18:58:17,756 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 170 places, 269 transitions, 1439 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 18:58:17,758 INFO L231 Difference]: Finished difference. Result has 170 places, 137 transitions, 403 flow [2023-08-29 18:58:17,758 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=850, PETRI_DIFFERENCE_MINUEND_FLOW=527, PETRI_DIFFERENCE_MINUEND_PLACES=165, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=153, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=149, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=403, PETRI_PLACES=170, PETRI_TRANSITIONS=137} [2023-08-29 18:58:17,759 INFO L281 CegarLoopForPetriNet]: 173 programPoint places, -3 predicate places. [2023-08-29 18:58:17,759 INFO L495 AbstractCegarLoop]: Abstraction has has 170 places, 137 transitions, 403 flow [2023-08-29 18:58:17,760 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 439.6666666666667) internal successors, (2638), 6 states have internal predecessors, (2638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:58:17,760 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:58:17,760 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:58:17,760 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-08-29 18:58:17,760 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting thread1Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2023-08-29 18:58:17,760 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:58:17,761 INFO L85 PathProgramCache]: Analyzing trace with hash -427272012, now seen corresponding path program 1 times [2023-08-29 18:58:17,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:58:17,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942605072] [2023-08-29 18:58:17,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:58:17,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:58:17,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:58:18,033 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-29 18:58:18,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:58:18,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942605072] [2023-08-29 18:58:18,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [942605072] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:58:18,034 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:58:18,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 18:58:18,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466440444] [2023-08-29 18:58:18,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:58:18,035 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 18:58:18,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:58:18,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 18:58:18,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 18:58:18,460 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 430 out of 850 [2023-08-29 18:58:18,462 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 137 transitions, 403 flow. Second operand has 6 states, 6 states have (on average 432.6666666666667) internal successors, (2596), 6 states have internal predecessors, (2596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:58:18,462 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:58:18,462 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 430 of 850 [2023-08-29 18:58:18,462 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:58:19,098 INFO L130 PetriNetUnfolder]: 2179/5307 cut-off events. [2023-08-29 18:58:19,098 INFO L131 PetriNetUnfolder]: For 2564/2565 co-relation queries the response was YES. [2023-08-29 18:58:19,120 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11088 conditions, 5307 events. 2179/5307 cut-off events. For 2564/2565 co-relation queries the response was YES. Maximal size of possible extension queue 151. Compared 40303 event pairs, 815 based on Foata normal form. 0/5082 useless extension candidates. Maximal degree in co-relation 11063. Up to 2069 conditions per place. [2023-08-29 18:58:19,129 INFO L137 encePairwiseOnDemand]: 843/850 looper letters, 113 selfloop transitions, 5 changer transitions 49/235 dead transitions. [2023-08-29 18:58:19,129 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 163 places, 235 transitions, 1034 flow [2023-08-29 18:58:19,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 18:58:19,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 18:58:19,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2732 transitions. [2023-08-29 18:58:19,133 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5356862745098039 [2023-08-29 18:58:19,133 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2732 transitions. [2023-08-29 18:58:19,133 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2732 transitions. [2023-08-29 18:58:19,134 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:58:19,134 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2732 transitions. [2023-08-29 18:58:19,136 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 455.3333333333333) internal successors, (2732), 6 states have internal predecessors, (2732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:58:19,140 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 850.0) internal successors, (5950), 7 states have internal predecessors, (5950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:58:19,141 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 850.0) internal successors, (5950), 7 states have internal predecessors, (5950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:58:19,141 INFO L175 Difference]: Start difference. First operand has 170 places, 137 transitions, 403 flow. Second operand 6 states and 2732 transitions. [2023-08-29 18:58:19,141 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 163 places, 235 transitions, 1034 flow [2023-08-29 18:58:19,150 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 235 transitions, 931 flow, removed 33 selfloop flow, removed 18 redundant places. [2023-08-29 18:58:19,153 INFO L231 Difference]: Finished difference. Result has 145 places, 122 transitions, 332 flow [2023-08-29 18:58:19,153 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=850, PETRI_DIFFERENCE_MINUEND_FLOW=354, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=135, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=332, PETRI_PLACES=145, PETRI_TRANSITIONS=122} [2023-08-29 18:58:19,153 INFO L281 CegarLoopForPetriNet]: 173 programPoint places, -28 predicate places. [2023-08-29 18:58:19,153 INFO L495 AbstractCegarLoop]: Abstraction has has 145 places, 122 transitions, 332 flow [2023-08-29 18:58:19,154 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 432.6666666666667) internal successors, (2596), 6 states have internal predecessors, (2596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:58:19,154 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:58:19,154 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:58:19,154 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-08-29 18:58:19,155 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting thread2Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2023-08-29 18:58:19,155 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:58:19,155 INFO L85 PathProgramCache]: Analyzing trace with hash 1877385373, now seen corresponding path program 1 times [2023-08-29 18:58:19,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:58:19,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064832511] [2023-08-29 18:58:19,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:58:19,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:58:19,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:58:19,400 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-29 18:58:19,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:58:19,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064832511] [2023-08-29 18:58:19,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1064832511] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:58:19,401 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:58:19,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 18:58:19,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184810859] [2023-08-29 18:58:19,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:58:19,402 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 18:58:19,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:58:19,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 18:58:19,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 18:58:19,831 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 430 out of 850 [2023-08-29 18:58:19,833 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 122 transitions, 332 flow. Second operand has 6 states, 6 states have (on average 433.1666666666667) internal successors, (2599), 6 states have internal predecessors, (2599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:58:19,833 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:58:19,833 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 430 of 850 [2023-08-29 18:58:19,833 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:58:20,257 INFO L130 PetriNetUnfolder]: 1439/3798 cut-off events. [2023-08-29 18:58:20,257 INFO L131 PetriNetUnfolder]: For 686/687 co-relation queries the response was YES. [2023-08-29 18:58:20,266 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7081 conditions, 3798 events. 1439/3798 cut-off events. For 686/687 co-relation queries the response was YES. Maximal size of possible extension queue 109. Compared 28294 event pairs, 520 based on Foata normal form. 35/3616 useless extension candidates. Maximal degree in co-relation 7068. Up to 1287 conditions per place. [2023-08-29 18:58:20,268 INFO L137 encePairwiseOnDemand]: 843/850 looper letters, 0 selfloop transitions, 0 changer transitions 196/196 dead transitions. [2023-08-29 18:58:20,268 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 196 transitions, 812 flow [2023-08-29 18:58:20,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 18:58:20,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 18:58:20,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2699 transitions. [2023-08-29 18:58:20,272 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5292156862745098 [2023-08-29 18:58:20,272 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2699 transitions. [2023-08-29 18:58:20,272 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2699 transitions. [2023-08-29 18:58:20,272 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:58:20,272 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2699 transitions. [2023-08-29 18:58:20,274 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 449.8333333333333) internal successors, (2699), 6 states have internal predecessors, (2699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:58:20,277 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 850.0) internal successors, (5950), 7 states have internal predecessors, (5950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:58:20,278 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 850.0) internal successors, (5950), 7 states have internal predecessors, (5950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:58:20,278 INFO L175 Difference]: Start difference. First operand has 145 places, 122 transitions, 332 flow. Second operand 6 states and 2699 transitions. [2023-08-29 18:58:20,278 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 196 transitions, 812 flow [2023-08-29 18:58:20,281 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 196 transitions, 790 flow, removed 2 selfloop flow, removed 6 redundant places. [2023-08-29 18:58:20,282 INFO L231 Difference]: Finished difference. Result has 133 places, 0 transitions, 0 flow [2023-08-29 18:58:20,283 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=850, PETRI_DIFFERENCE_MINUEND_FLOW=314, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=120, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=133, PETRI_TRANSITIONS=0} [2023-08-29 18:58:20,283 INFO L281 CegarLoopForPetriNet]: 173 programPoint places, -40 predicate places. [2023-08-29 18:58:20,283 INFO L495 AbstractCegarLoop]: Abstraction has has 133 places, 0 transitions, 0 flow [2023-08-29 18:58:20,284 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 433.1666666666667) internal successors, (2599), 6 states have internal predecessors, (2599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:58:20,286 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (95 of 96 remaining) [2023-08-29 18:58:20,287 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (94 of 96 remaining) [2023-08-29 18:58:20,287 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err16ASSERT_VIOLATIONDATA_RACE (93 of 96 remaining) [2023-08-29 18:58:20,287 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (92 of 96 remaining) [2023-08-29 18:58:20,288 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err17ASSERT_VIOLATIONDATA_RACE (91 of 96 remaining) [2023-08-29 18:58:20,288 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err13ASSERT_VIOLATIONDATA_RACE (90 of 96 remaining) [2023-08-29 18:58:20,288 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err14ASSERT_VIOLATIONDATA_RACE (89 of 96 remaining) [2023-08-29 18:58:20,288 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (88 of 96 remaining) [2023-08-29 18:58:20,289 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err18ASSERT_VIOLATIONDATA_RACE (87 of 96 remaining) [2023-08-29 18:58:20,289 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (86 of 96 remaining) [2023-08-29 18:58:20,289 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err15ASSERT_VIOLATIONDATA_RACE (85 of 96 remaining) [2023-08-29 18:58:20,289 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (84 of 96 remaining) [2023-08-29 18:58:20,289 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (83 of 96 remaining) [2023-08-29 18:58:20,290 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (82 of 96 remaining) [2023-08-29 18:58:20,290 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (81 of 96 remaining) [2023-08-29 18:58:20,290 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONDATA_RACE (80 of 96 remaining) [2023-08-29 18:58:20,290 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONDATA_RACE (79 of 96 remaining) [2023-08-29 18:58:20,291 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err11ASSERT_VIOLATIONDATA_RACE (78 of 96 remaining) [2023-08-29 18:58:20,291 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err12ASSERT_VIOLATIONDATA_RACE (77 of 96 remaining) [2023-08-29 18:58:20,291 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (76 of 96 remaining) [2023-08-29 18:58:20,291 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (75 of 96 remaining) [2023-08-29 18:58:20,291 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err16ASSERT_VIOLATIONDATA_RACE (74 of 96 remaining) [2023-08-29 18:58:20,292 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (73 of 96 remaining) [2023-08-29 18:58:20,292 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err17ASSERT_VIOLATIONDATA_RACE (72 of 96 remaining) [2023-08-29 18:58:20,292 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err13ASSERT_VIOLATIONDATA_RACE (71 of 96 remaining) [2023-08-29 18:58:20,292 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err14ASSERT_VIOLATIONDATA_RACE (70 of 96 remaining) [2023-08-29 18:58:20,292 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (69 of 96 remaining) [2023-08-29 18:58:20,293 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err18ASSERT_VIOLATIONDATA_RACE (68 of 96 remaining) [2023-08-29 18:58:20,293 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (67 of 96 remaining) [2023-08-29 18:58:20,293 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err15ASSERT_VIOLATIONDATA_RACE (66 of 96 remaining) [2023-08-29 18:58:20,293 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (65 of 96 remaining) [2023-08-29 18:58:20,293 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (64 of 96 remaining) [2023-08-29 18:58:20,293 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (63 of 96 remaining) [2023-08-29 18:58:20,294 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (62 of 96 remaining) [2023-08-29 18:58:20,294 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (61 of 96 remaining) [2023-08-29 18:58:20,294 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONDATA_RACE (60 of 96 remaining) [2023-08-29 18:58:20,294 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONDATA_RACE (59 of 96 remaining) [2023-08-29 18:58:20,294 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err12ASSERT_VIOLATIONDATA_RACE (58 of 96 remaining) [2023-08-29 18:58:20,295 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (57 of 96 remaining) [2023-08-29 18:58:20,295 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (56 of 96 remaining) [2023-08-29 18:58:20,295 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (55 of 96 remaining) [2023-08-29 18:58:20,295 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (54 of 96 remaining) [2023-08-29 18:58:20,295 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (53 of 96 remaining) [2023-08-29 18:58:20,296 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (52 of 96 remaining) [2023-08-29 18:58:20,296 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (51 of 96 remaining) [2023-08-29 18:58:20,296 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (50 of 96 remaining) [2023-08-29 18:58:20,296 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (49 of 96 remaining) [2023-08-29 18:58:20,296 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (48 of 96 remaining) [2023-08-29 18:58:20,297 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (47 of 96 remaining) [2023-08-29 18:58:20,297 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (46 of 96 remaining) [2023-08-29 18:58:20,297 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (45 of 96 remaining) [2023-08-29 18:58:20,298 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (44 of 96 remaining) [2023-08-29 18:58:20,298 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (43 of 96 remaining) [2023-08-29 18:58:20,298 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE (42 of 96 remaining) [2023-08-29 18:58:20,298 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE (41 of 96 remaining) [2023-08-29 18:58:20,298 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE (40 of 96 remaining) [2023-08-29 18:58:20,298 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (39 of 96 remaining) [2023-08-29 18:58:20,299 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (38 of 96 remaining) [2023-08-29 18:58:20,299 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (37 of 96 remaining) [2023-08-29 18:58:20,299 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (36 of 96 remaining) [2023-08-29 18:58:20,299 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err16ASSERT_VIOLATIONDATA_RACE (35 of 96 remaining) [2023-08-29 18:58:20,299 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (34 of 96 remaining) [2023-08-29 18:58:20,300 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err17ASSERT_VIOLATIONDATA_RACE (33 of 96 remaining) [2023-08-29 18:58:20,300 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err13ASSERT_VIOLATIONDATA_RACE (32 of 96 remaining) [2023-08-29 18:58:20,300 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err14ASSERT_VIOLATIONDATA_RACE (31 of 96 remaining) [2023-08-29 18:58:20,300 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (30 of 96 remaining) [2023-08-29 18:58:20,300 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err18ASSERT_VIOLATIONDATA_RACE (29 of 96 remaining) [2023-08-29 18:58:20,300 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (28 of 96 remaining) [2023-08-29 18:58:20,301 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err15ASSERT_VIOLATIONDATA_RACE (27 of 96 remaining) [2023-08-29 18:58:20,301 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (26 of 96 remaining) [2023-08-29 18:58:20,301 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (25 of 96 remaining) [2023-08-29 18:58:20,301 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (24 of 96 remaining) [2023-08-29 18:58:20,301 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (23 of 96 remaining) [2023-08-29 18:58:20,301 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONDATA_RACE (22 of 96 remaining) [2023-08-29 18:58:20,302 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONDATA_RACE (21 of 96 remaining) [2023-08-29 18:58:20,302 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err11ASSERT_VIOLATIONDATA_RACE (20 of 96 remaining) [2023-08-29 18:58:20,302 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err12ASSERT_VIOLATIONDATA_RACE (19 of 96 remaining) [2023-08-29 18:58:20,302 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (18 of 96 remaining) [2023-08-29 18:58:20,302 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (17 of 96 remaining) [2023-08-29 18:58:20,302 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err16ASSERT_VIOLATIONDATA_RACE (16 of 96 remaining) [2023-08-29 18:58:20,303 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (15 of 96 remaining) [2023-08-29 18:58:20,303 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err17ASSERT_VIOLATIONDATA_RACE (14 of 96 remaining) [2023-08-29 18:58:20,303 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err13ASSERT_VIOLATIONDATA_RACE (13 of 96 remaining) [2023-08-29 18:58:20,303 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err14ASSERT_VIOLATIONDATA_RACE (12 of 96 remaining) [2023-08-29 18:58:20,303 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (11 of 96 remaining) [2023-08-29 18:58:20,303 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err18ASSERT_VIOLATIONDATA_RACE (10 of 96 remaining) [2023-08-29 18:58:20,303 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (9 of 96 remaining) [2023-08-29 18:58:20,304 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err15ASSERT_VIOLATIONDATA_RACE (8 of 96 remaining) [2023-08-29 18:58:20,304 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (7 of 96 remaining) [2023-08-29 18:58:20,304 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (6 of 96 remaining) [2023-08-29 18:58:20,304 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (5 of 96 remaining) [2023-08-29 18:58:20,304 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (4 of 96 remaining) [2023-08-29 18:58:20,304 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (3 of 96 remaining) [2023-08-29 18:58:20,305 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONDATA_RACE (2 of 96 remaining) [2023-08-29 18:58:20,305 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONDATA_RACE (1 of 96 remaining) [2023-08-29 18:58:20,305 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err12ASSERT_VIOLATIONDATA_RACE (0 of 96 remaining) [2023-08-29 18:58:20,305 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-08-29 18:58:20,305 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:58:20,310 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-29 18:58:20,310 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-29 18:58:20,314 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 06:58:20 BasicIcfg [2023-08-29 18:58:20,314 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-29 18:58:20,314 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-29 18:58:20,314 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-29 18:58:20,315 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-29 18:58:20,315 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 06:57:52" (3/4) ... [2023-08-29 18:58:20,317 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-29 18:58:20,321 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2023-08-29 18:58:20,321 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2023-08-29 18:58:20,326 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 26 nodes and edges [2023-08-29 18:58:20,326 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-08-29 18:58:20,327 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-29 18:58:20,327 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-29 18:58:20,364 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-29 18:58:20,364 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-29 18:58:20,364 INFO L158 Benchmark]: Toolchain (without parser) took 29294.82ms. Allocated memory was 77.6MB in the beginning and 1.3GB in the end (delta: 1.2GB). Free memory was 50.9MB in the beginning and 399.6MB in the end (delta: -348.7MB). Peak memory consumption was 828.8MB. Max. memory is 16.1GB. [2023-08-29 18:58:20,365 INFO L158 Benchmark]: CDTParser took 1.22ms. Allocated memory is still 60.8MB. Free memory is still 38.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 18:58:20,365 INFO L158 Benchmark]: CACSL2BoogieTranslator took 357.38ms. Allocated memory is still 77.6MB. Free memory was 50.7MB in the beginning and 56.8MB in the end (delta: -6.1MB). Peak memory consumption was 14.3MB. Max. memory is 16.1GB. [2023-08-29 18:58:20,365 INFO L158 Benchmark]: Boogie Procedure Inliner took 66.97ms. Allocated memory is still 77.6MB. Free memory was 56.8MB in the beginning and 54.5MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 18:58:20,365 INFO L158 Benchmark]: Boogie Preprocessor took 73.27ms. Allocated memory is still 77.6MB. Free memory was 54.5MB in the beginning and 51.7MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 18:58:20,366 INFO L158 Benchmark]: RCFGBuilder took 801.87ms. Allocated memory is still 77.6MB. Free memory was 51.4MB in the beginning and 38.7MB in the end (delta: 12.7MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-08-29 18:58:20,366 INFO L158 Benchmark]: TraceAbstraction took 27939.35ms. Allocated memory was 77.6MB in the beginning and 1.3GB in the end (delta: 1.2GB). Free memory was 38.3MB in the beginning and 404.8MB in the end (delta: -366.6MB). Peak memory consumption was 808.2MB. Max. memory is 16.1GB. [2023-08-29 18:58:20,366 INFO L158 Benchmark]: Witness Printer took 49.60ms. Allocated memory is still 1.3GB. Free memory was 404.8MB in the beginning and 399.6MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-08-29 18:58:20,368 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.22ms. Allocated memory is still 60.8MB. Free memory is still 38.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 357.38ms. Allocated memory is still 77.6MB. Free memory was 50.7MB in the beginning and 56.8MB in the end (delta: -6.1MB). Peak memory consumption was 14.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 66.97ms. Allocated memory is still 77.6MB. Free memory was 56.8MB in the beginning and 54.5MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 73.27ms. Allocated memory is still 77.6MB. Free memory was 54.5MB in the beginning and 51.7MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 801.87ms. Allocated memory is still 77.6MB. Free memory was 51.4MB in the beginning and 38.7MB in the end (delta: 12.7MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 27939.35ms. Allocated memory was 77.6MB in the beginning and 1.3GB in the end (delta: 1.2GB). Free memory was 38.3MB in the beginning and 404.8MB in the end (delta: -366.6MB). Peak memory consumption was 808.2MB. Max. memory is 16.1GB. * Witness Printer took 49.60ms. Allocated memory is still 1.3GB. Free memory was 404.8MB in the beginning and 399.6MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8.2s, 433 PlacesBefore, 173 PlacesAfterwards, 450 TransitionsBefore, 180 TransitionsAfterwards, 31968 CoEnabledTransitionPairs, 8 FixpointIterations, 218 TrivialSequentialCompositions, 111 ConcurrentSequentialCompositions, 31 TrivialYvCompositions, 10 ConcurrentYvCompositions, 10 ChoiceCompositions, 380 TotalNumberOfCompositions, 235448 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 52185, independent: 49768, independent conditional: 0, independent unconditional: 49768, dependent: 2417, dependent conditional: 0, dependent unconditional: 2417, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 15155, independent: 14816, independent conditional: 0, independent unconditional: 14816, dependent: 339, dependent conditional: 0, dependent unconditional: 339, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 52185, independent: 34952, independent conditional: 0, independent unconditional: 34952, dependent: 2078, dependent conditional: 0, dependent unconditional: 2078, unknown: 15155, unknown conditional: 0, unknown unconditional: 15155] , Statistics on independence cache: Total cache size (in pairs): 3487, Positive cache size: 3294, Positive conditional cache size: 0, Positive unconditional cache size: 3294, Negative cache size: 193, Negative conditional cache size: 0, Negative unconditional cache size: 193, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 60]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 60]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 57]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 57]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 60]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 57]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 68]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 68]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 80]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 69]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 80]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 77]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 77]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 69]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 80]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 70]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 77]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 70]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 70]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 70]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 71]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 71]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 71]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 71]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 71]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 89]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 90]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 91]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 92]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 93]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 93]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 116]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 94]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 94]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 116]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 99]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 100]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 102]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 102]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 103]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 103]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 104]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 104]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 659 locations, 96 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 27.8s, OverallIterations: 20, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 16.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 8.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4335 SdHoareTripleChecker+Valid, 5.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2797 mSDsluCounter, 1172 SdHoareTripleChecker+Invalid, 4.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 868 mSDsCounter, 1117 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 8160 IncrementalHoareTripleChecker+Invalid, 9277 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1117 mSolverCounterUnsat, 304 mSDtfsCounter, 8160 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 81 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=535occurred in iteration=15, InterpolantAutomatonStates: 89, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 343 NumberOfCodeBlocks, 343 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 323 ConstructedInterpolants, 0 QuantifiedInterpolants, 1127 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 20 InterpolantComputations, 20 PerfectInterpolantSequences, 10/10 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 56 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-29 18:58:20,396 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE