./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/weaver/chl-node-subst.wvr.c --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/weaver/chl-node-subst.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 97832baecac12bd55b66fbc3c6c38a25db85e9dc70cfa8f34b5e7a9e59086f06 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-29 03:25:23,677 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 03:25:23,678 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 03:25:23,713 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 03:25:23,714 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 03:25:23,716 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 03:25:23,718 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 03:25:23,720 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 03:25:23,722 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 03:25:23,725 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 03:25:23,725 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 03:25:23,727 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 03:25:23,727 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 03:25:23,729 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 03:25:23,730 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 03:25:23,734 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 03:25:23,734 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 03:25:23,735 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 03:25:23,736 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 03:25:23,741 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 03:25:23,742 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 03:25:23,742 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 03:25:23,743 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 03:25:23,743 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 03:25:23,748 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 03:25:23,748 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 03:25:23,748 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 03:25:23,750 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 03:25:23,750 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 03:25:23,751 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 03:25:23,751 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 03:25:23,752 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 03:25:23,757 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 03:25:23,757 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 03:25:23,758 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 03:25:23,758 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 03:25:23,758 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 03:25:23,758 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 03:25:23,758 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 03:25:23,759 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 03:25:23,759 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 03:25:23,760 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-29 03:25:23,786 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 03:25:23,786 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 03:25:23,787 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 03:25:23,787 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 03:25:23,787 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 03:25:23,788 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 03:25:23,788 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 03:25:23,788 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 03:25:23,788 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 03:25:23,789 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 03:25:23,789 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 03:25:23,789 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 03:25:23,789 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 03:25:23,790 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 03:25:23,790 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 03:25:23,790 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-29 03:25:23,790 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 03:25:23,790 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-29 03:25:23,790 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-29 03:25:23,790 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 03:25:23,791 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-29 03:25:23,791 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 03:25:23,791 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-29 03:25:23,791 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 03:25:23,791 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 03:25:23,791 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 03:25:23,792 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 03:25:23,792 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 03:25:23,792 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 03:25:23,792 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-29 03:25:23,792 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 03:25:23,792 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 03:25:23,793 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 03:25:23,793 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-29 03:25:23,793 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 03:25:23,793 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 03:25:23,793 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 03:25:23,793 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 97832baecac12bd55b66fbc3c6c38a25db85e9dc70cfa8f34b5e7a9e59086f06 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-29 03:25:24,033 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 03:25:24,051 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 03:25:24,053 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 03:25:24,053 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 03:25:24,054 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 03:25:24,054 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-node-subst.wvr.c [2023-08-29 03:25:25,015 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 03:25:25,233 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 03:25:25,234 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-node-subst.wvr.c [2023-08-29 03:25:25,240 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a2c55934/e1037644765a488d93f2c054b88b294a/FLAG06319e69f [2023-08-29 03:25:25,258 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a2c55934/e1037644765a488d93f2c054b88b294a [2023-08-29 03:25:25,260 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 03:25:25,261 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 03:25:25,263 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 03:25:25,263 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 03:25:25,265 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 03:25:25,266 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 03:25:25" (1/1) ... [2023-08-29 03:25:25,267 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@193cd510 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:25:25, skipping insertion in model container [2023-08-29 03:25:25,267 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 03:25:25" (1/1) ... [2023-08-29 03:25:25,272 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 03:25:25,292 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 03:25:25,434 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-node-subst.wvr.c[3996,4009] [2023-08-29 03:25:25,441 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 03:25:25,447 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 03:25:25,480 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-node-subst.wvr.c[3996,4009] [2023-08-29 03:25:25,497 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 03:25:25,507 INFO L208 MainTranslator]: Completed translation [2023-08-29 03:25:25,508 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:25:25 WrapperNode [2023-08-29 03:25:25,508 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 03:25:25,509 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 03:25:25,509 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 03:25:25,509 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 03:25:25,513 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:25:25" (1/1) ... [2023-08-29 03:25:25,524 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:25:25" (1/1) ... [2023-08-29 03:25:25,581 INFO L138 Inliner]: procedures = 27, calls = 66, calls flagged for inlining = 22, calls inlined = 34, statements flattened = 817 [2023-08-29 03:25:25,582 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 03:25:25,583 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 03:25:25,583 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 03:25:25,583 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 03:25:25,589 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:25:25" (1/1) ... [2023-08-29 03:25:25,590 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:25:25" (1/1) ... [2023-08-29 03:25:25,604 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:25:25" (1/1) ... [2023-08-29 03:25:25,604 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:25:25" (1/1) ... [2023-08-29 03:25:25,645 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:25:25" (1/1) ... [2023-08-29 03:25:25,649 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:25:25" (1/1) ... [2023-08-29 03:25:25,651 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:25:25" (1/1) ... [2023-08-29 03:25:25,662 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:25:25" (1/1) ... [2023-08-29 03:25:25,669 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 03:25:25,670 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 03:25:25,670 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 03:25:25,670 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 03:25:25,671 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:25:25" (1/1) ... [2023-08-29 03:25:25,675 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 03:25:25,683 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 03:25:25,702 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 03:25:25,721 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 03:25:25,733 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-29 03:25:25,733 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 03:25:25,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-29 03:25:25,733 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-29 03:25:25,733 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-29 03:25:25,733 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-29 03:25:25,733 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-29 03:25:25,734 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-29 03:25:25,734 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-08-29 03:25:25,734 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-08-29 03:25:25,734 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-29 03:25:25,734 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-29 03:25:25,734 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 03:25:25,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 03:25:25,734 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 03:25:25,735 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 03:25:25,858 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 03:25:25,859 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 03:25:26,681 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 03:25:26,691 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 03:25:26,691 INFO L302 CfgBuilder]: Removed 6 assume(true) statements. [2023-08-29 03:25:26,693 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 03:25:26 BoogieIcfgContainer [2023-08-29 03:25:26,693 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 03:25:26,694 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 03:25:26,694 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 03:25:26,696 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 03:25:26,697 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 03:25:25" (1/3) ... [2023-08-29 03:25:26,697 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42ad5f76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 03:25:26, skipping insertion in model container [2023-08-29 03:25:26,697 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:25:25" (2/3) ... [2023-08-29 03:25:26,698 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42ad5f76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 03:25:26, skipping insertion in model container [2023-08-29 03:25:26,698 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 03:25:26" (3/3) ... [2023-08-29 03:25:26,699 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-node-subst.wvr.c [2023-08-29 03:25:26,704 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-29 03:25:26,709 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 03:25:26,710 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 119 error locations. [2023-08-29 03:25:26,710 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 03:25:26,856 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-08-29 03:25:26,897 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 973 places, 1011 transitions, 2046 flow [2023-08-29 03:25:27,224 INFO L130 PetriNetUnfolder]: 48/1008 cut-off events. [2023-08-29 03:25:27,225 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-08-29 03:25:27,247 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1021 conditions, 1008 events. 48/1008 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 2165 event pairs, 0 based on Foata normal form. 0/841 useless extension candidates. Maximal degree in co-relation 795. Up to 2 conditions per place. [2023-08-29 03:25:27,247 INFO L82 GeneralOperation]: Start removeDead. Operand has 973 places, 1011 transitions, 2046 flow [2023-08-29 03:25:27,278 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 950 places, 985 transitions, 1988 flow [2023-08-29 03:25:27,282 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 03:25:27,296 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 950 places, 985 transitions, 1988 flow [2023-08-29 03:25:27,300 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 950 places, 985 transitions, 1988 flow [2023-08-29 03:25:27,300 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 950 places, 985 transitions, 1988 flow [2023-08-29 03:25:27,578 INFO L130 PetriNetUnfolder]: 45/985 cut-off events. [2023-08-29 03:25:27,579 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-08-29 03:25:27,587 INFO L83 FinitePrefix]: Finished finitePrefix Result has 998 conditions, 985 events. 45/985 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 2122 event pairs, 0 based on Foata normal form. 0/822 useless extension candidates. Maximal degree in co-relation 795. Up to 2 conditions per place. [2023-08-29 03:25:27,631 INFO L119 LiptonReduction]: Number of co-enabled transitions 148920 [2023-08-29 03:25:50,023 INFO L134 LiptonReduction]: Checked pairs total: 1150192 [2023-08-29 03:25:50,024 INFO L136 LiptonReduction]: Total number of compositions: 986 [2023-08-29 03:25:50,034 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 03:25:50,038 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;@f2501ef, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 03:25:50,038 INFO L358 AbstractCegarLoop]: Starting to check reachability of 197 error locations. [2023-08-29 03:25:50,039 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-29 03:25:50,039 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 03:25:50,039 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:25:50,040 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-29 03:25:50,040 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2023-08-29 03:25:50,043 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:25:50,043 INFO L85 PathProgramCache]: Analyzing trace with hash 3623, now seen corresponding path program 1 times [2023-08-29 03:25:50,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:25:50,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818184810] [2023-08-29 03:25:50,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:25:50,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:25:50,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:25:50,113 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 03:25:50,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:25:50,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818184810] [2023-08-29 03:25:50,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818184810] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:25:50,114 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:25:50,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-29 03:25:50,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941614557] [2023-08-29 03:25:50,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:25:50,121 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-29 03:25:50,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:25:50,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-29 03:25:50,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-29 03:25:50,146 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 975 out of 1997 [2023-08-29 03:25:50,150 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 318 places, 320 transitions, 658 flow. Second operand has 2 states, 2 states have (on average 975.5) internal successors, (1951), 2 states have internal predecessors, (1951), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:25:50,150 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:25:50,151 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 975 of 1997 [2023-08-29 03:25:50,151 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:25:53,861 INFO L130 PetriNetUnfolder]: 10619/35446 cut-off events. [2023-08-29 03:25:53,862 INFO L131 PetriNetUnfolder]: For 444/444 co-relation queries the response was YES. [2023-08-29 03:25:53,944 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50482 conditions, 35446 events. 10619/35446 cut-off events. For 444/444 co-relation queries the response was YES. Maximal size of possible extension queue 916. Compared 448545 event pairs, 8657 based on Foata normal form. 1862/30470 useless extension candidates. Maximal degree in co-relation 47034. Up to 14622 conditions per place. [2023-08-29 03:25:54,094 INFO L137 encePairwiseOnDemand]: 1937/1997 looper letters, 63 selfloop transitions, 0 changer transitions 1/260 dead transitions. [2023-08-29 03:25:54,095 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 259 places, 260 transitions, 666 flow [2023-08-29 03:25:54,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-29 03:25:54,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-29 03:25:54,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 2074 transitions. [2023-08-29 03:25:54,112 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5192789183775663 [2023-08-29 03:25:54,113 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 2074 transitions. [2023-08-29 03:25:54,113 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 2074 transitions. [2023-08-29 03:25:54,116 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:25:54,118 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 2074 transitions. [2023-08-29 03:25:54,124 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 1037.0) internal successors, (2074), 2 states have internal predecessors, (2074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:25:54,132 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 1997.0) internal successors, (5991), 3 states have internal predecessors, (5991), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:25:54,135 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 1997.0) internal successors, (5991), 3 states have internal predecessors, (5991), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:25:54,136 INFO L175 Difference]: Start difference. First operand has 318 places, 320 transitions, 658 flow. Second operand 2 states and 2074 transitions. [2023-08-29 03:25:54,137 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 259 places, 260 transitions, 666 flow [2023-08-29 03:25:54,167 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 253 places, 260 transitions, 654 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-08-29 03:25:54,171 INFO L231 Difference]: Finished difference. Result has 253 places, 259 transitions, 523 flow [2023-08-29 03:25:54,173 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1997, PETRI_DIFFERENCE_MINUEND_FLOW=526, PETRI_DIFFERENCE_MINUEND_PLACES=252, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=260, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=260, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=523, PETRI_PLACES=253, PETRI_TRANSITIONS=259} [2023-08-29 03:25:54,177 INFO L281 CegarLoopForPetriNet]: 318 programPoint places, -65 predicate places. [2023-08-29 03:25:54,177 INFO L495 AbstractCegarLoop]: Abstraction has has 253 places, 259 transitions, 523 flow [2023-08-29 03:25:54,178 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 975.5) internal successors, (1951), 2 states have internal predecessors, (1951), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:25:54,179 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:25:54,180 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:25:54,181 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-29 03:25:54,182 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2023-08-29 03:25:54,188 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:25:54,188 INFO L85 PathProgramCache]: Analyzing trace with hash -1353092378, now seen corresponding path program 1 times [2023-08-29 03:25:54,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:25:54,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52832706] [2023-08-29 03:25:54,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:25:54,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:25:54,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:25:54,375 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 03:25:54,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:25:54,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52832706] [2023-08-29 03:25:54,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52832706] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:25:54,376 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:25:54,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 03:25:54,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723299015] [2023-08-29 03:25:54,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:25:54,377 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 03:25:54,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:25:54,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 03:25:54,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 03:25:54,394 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 962 out of 1997 [2023-08-29 03:25:54,397 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 253 places, 259 transitions, 523 flow. Second operand has 3 states, 3 states have (on average 965.3333333333334) internal successors, (2896), 3 states have internal predecessors, (2896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:25:54,397 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:25:54,397 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 962 of 1997 [2023-08-29 03:25:54,397 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:25:59,042 INFO L130 PetriNetUnfolder]: 17330/58316 cut-off events. [2023-08-29 03:25:59,042 INFO L131 PetriNetUnfolder]: For 85/85 co-relation queries the response was YES. [2023-08-29 03:25:59,156 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82425 conditions, 58316 events. 17330/58316 cut-off events. For 85/85 co-relation queries the response was YES. Maximal size of possible extension queue 1326. Compared 773228 event pairs, 5176 based on Foata normal form. 0/48516 useless extension candidates. Maximal degree in co-relation 82422. Up to 23852 conditions per place. [2023-08-29 03:25:59,374 INFO L137 encePairwiseOnDemand]: 1991/1997 looper letters, 92 selfloop transitions, 2 changer transitions 0/280 dead transitions. [2023-08-29 03:25:59,374 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 250 places, 280 transitions, 755 flow [2023-08-29 03:25:59,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 03:25:59,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 03:25:59,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2984 transitions. [2023-08-29 03:25:59,379 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49808045401435486 [2023-08-29 03:25:59,380 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2984 transitions. [2023-08-29 03:25:59,380 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2984 transitions. [2023-08-29 03:25:59,381 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:25:59,381 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2984 transitions. [2023-08-29 03:25:59,385 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 994.6666666666666) internal successors, (2984), 3 states have internal predecessors, (2984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:25:59,392 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1997.0) internal successors, (7988), 4 states have internal predecessors, (7988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:25:59,395 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1997.0) internal successors, (7988), 4 states have internal predecessors, (7988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:25:59,395 INFO L175 Difference]: Start difference. First operand has 253 places, 259 transitions, 523 flow. Second operand 3 states and 2984 transitions. [2023-08-29 03:25:59,395 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 250 places, 280 transitions, 755 flow [2023-08-29 03:25:59,396 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 250 places, 280 transitions, 755 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 03:25:59,399 INFO L231 Difference]: Finished difference. Result has 251 places, 257 transitions, 529 flow [2023-08-29 03:25:59,399 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1997, PETRI_DIFFERENCE_MINUEND_FLOW=515, PETRI_DIFFERENCE_MINUEND_PLACES=248, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=255, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=253, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=529, PETRI_PLACES=251, PETRI_TRANSITIONS=257} [2023-08-29 03:25:59,400 INFO L281 CegarLoopForPetriNet]: 318 programPoint places, -67 predicate places. [2023-08-29 03:25:59,400 INFO L495 AbstractCegarLoop]: Abstraction has has 251 places, 257 transitions, 529 flow [2023-08-29 03:25:59,401 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 965.3333333333334) internal successors, (2896), 3 states have internal predecessors, (2896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:25:59,401 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:25:59,401 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:25:59,402 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-29 03:25:59,402 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2023-08-29 03:25:59,402 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:25:59,402 INFO L85 PathProgramCache]: Analyzing trace with hash 1053387688, now seen corresponding path program 1 times [2023-08-29 03:25:59,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:25:59,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423326990] [2023-08-29 03:25:59,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:25:59,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:25:59,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:25:59,522 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 03:25:59,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:25:59,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423326990] [2023-08-29 03:25:59,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1423326990] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:25:59,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:25:59,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 03:25:59,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931501423] [2023-08-29 03:25:59,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:25:59,524 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 03:25:59,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:25:59,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 03:25:59,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 03:25:59,553 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 944 out of 1997 [2023-08-29 03:25:59,556 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 251 places, 257 transitions, 529 flow. Second operand has 3 states, 3 states have (on average 947.3333333333334) internal successors, (2842), 3 states have internal predecessors, (2842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:25:59,556 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:25:59,556 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 944 of 1997 [2023-08-29 03:25:59,556 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:26:05,881 INFO L130 PetriNetUnfolder]: 26577/78278 cut-off events. [2023-08-29 03:26:05,881 INFO L131 PetriNetUnfolder]: For 113/113 co-relation queries the response was YES. [2023-08-29 03:26:06,074 INFO L83 FinitePrefix]: Finished finitePrefix Result has 115526 conditions, 78278 events. 26577/78278 cut-off events. For 113/113 co-relation queries the response was YES. Maximal size of possible extension queue 1600. Compared 1024601 event pairs, 22970 based on Foata normal form. 0/66303 useless extension candidates. Maximal degree in co-relation 115522. Up to 36949 conditions per place. [2023-08-29 03:26:06,514 INFO L137 encePairwiseOnDemand]: 1990/1997 looper letters, 74 selfloop transitions, 1 changer transitions 0/251 dead transitions. [2023-08-29 03:26:06,514 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 247 places, 251 transitions, 667 flow [2023-08-29 03:26:06,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 03:26:06,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 03:26:06,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2913 transitions. [2023-08-29 03:26:06,520 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.486229344016024 [2023-08-29 03:26:06,520 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2913 transitions. [2023-08-29 03:26:06,520 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2913 transitions. [2023-08-29 03:26:06,521 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:26:06,521 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2913 transitions. [2023-08-29 03:26:06,526 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 971.0) internal successors, (2913), 3 states have internal predecessors, (2913), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:26:06,533 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1997.0) internal successors, (7988), 4 states have internal predecessors, (7988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:26:06,536 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1997.0) internal successors, (7988), 4 states have internal predecessors, (7988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:26:06,537 INFO L175 Difference]: Start difference. First operand has 251 places, 257 transitions, 529 flow. Second operand 3 states and 2913 transitions. [2023-08-29 03:26:06,537 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 247 places, 251 transitions, 667 flow [2023-08-29 03:26:06,538 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 247 places, 251 transitions, 667 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 03:26:06,540 INFO L231 Difference]: Finished difference. Result has 247 places, 251 transitions, 519 flow [2023-08-29 03:26:06,540 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1997, PETRI_DIFFERENCE_MINUEND_FLOW=517, PETRI_DIFFERENCE_MINUEND_PLACES=245, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=251, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=250, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=519, PETRI_PLACES=247, PETRI_TRANSITIONS=251} [2023-08-29 03:26:06,542 INFO L281 CegarLoopForPetriNet]: 318 programPoint places, -71 predicate places. [2023-08-29 03:26:06,544 INFO L495 AbstractCegarLoop]: Abstraction has has 247 places, 251 transitions, 519 flow [2023-08-29 03:26:06,545 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 947.3333333333334) internal successors, (2842), 3 states have internal predecessors, (2842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:26:06,546 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:26:06,546 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:26:06,546 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-29 03:26:06,546 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread3Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2023-08-29 03:26:06,546 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:26:06,547 INFO L85 PathProgramCache]: Analyzing trace with hash 1820064494, now seen corresponding path program 1 times [2023-08-29 03:26:06,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:26:06,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837410402] [2023-08-29 03:26:06,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:26:06,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:26:06,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:26:06,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 03:26:06,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:26:06,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837410402] [2023-08-29 03:26:06,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1837410402] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:26:06,636 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:26:06,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 03:26:06,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61145649] [2023-08-29 03:26:06,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:26:06,638 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 03:26:06,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:26:06,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 03:26:06,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 03:26:06,653 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 962 out of 1997 [2023-08-29 03:26:06,656 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 247 places, 251 transitions, 519 flow. Second operand has 3 states, 3 states have (on average 966.6666666666666) internal successors, (2900), 3 states have internal predecessors, (2900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:26:06,658 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:26:06,658 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 962 of 1997 [2023-08-29 03:26:06,658 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:26:09,914 INFO L130 PetriNetUnfolder]: 16344/43718 cut-off events. [2023-08-29 03:26:09,915 INFO L131 PetriNetUnfolder]: For 60/60 co-relation queries the response was YES. [2023-08-29 03:26:10,029 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66538 conditions, 43718 events. 16344/43718 cut-off events. For 60/60 co-relation queries the response was YES. Maximal size of possible extension queue 1071. Compared 514281 event pairs, 4478 based on Foata normal form. 0/37713 useless extension candidates. Maximal degree in co-relation 66533. Up to 22375 conditions per place. [2023-08-29 03:26:10,179 INFO L137 encePairwiseOnDemand]: 1991/1997 looper letters, 86 selfloop transitions, 2 changer transitions 0/266 dead transitions. [2023-08-29 03:26:10,179 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 245 places, 266 transitions, 727 flow [2023-08-29 03:26:10,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 03:26:10,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 03:26:10,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2978 transitions. [2023-08-29 03:26:10,184 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4970789517609748 [2023-08-29 03:26:10,184 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2978 transitions. [2023-08-29 03:26:10,184 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2978 transitions. [2023-08-29 03:26:10,185 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:26:10,185 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2978 transitions. [2023-08-29 03:26:10,189 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 992.6666666666666) internal successors, (2978), 3 states have internal predecessors, (2978), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:26:10,318 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1997.0) internal successors, (7988), 4 states have internal predecessors, (7988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:26:10,322 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1997.0) internal successors, (7988), 4 states have internal predecessors, (7988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:26:10,325 INFO L175 Difference]: Start difference. First operand has 247 places, 251 transitions, 519 flow. Second operand 3 states and 2978 transitions. [2023-08-29 03:26:10,325 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 245 places, 266 transitions, 727 flow [2023-08-29 03:26:10,326 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 244 places, 266 transitions, 726 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 03:26:10,328 INFO L231 Difference]: Finished difference. Result has 245 places, 249 transitions, 524 flow [2023-08-29 03:26:10,329 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1997, PETRI_DIFFERENCE_MINUEND_FLOW=510, PETRI_DIFFERENCE_MINUEND_PLACES=242, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=247, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=245, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=524, PETRI_PLACES=245, PETRI_TRANSITIONS=249} [2023-08-29 03:26:10,330 INFO L281 CegarLoopForPetriNet]: 318 programPoint places, -73 predicate places. [2023-08-29 03:26:10,330 INFO L495 AbstractCegarLoop]: Abstraction has has 245 places, 249 transitions, 524 flow [2023-08-29 03:26:10,331 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 966.6666666666666) internal successors, (2900), 3 states have internal predecessors, (2900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:26:10,336 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:26:10,336 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:26:10,336 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-29 03:26:10,336 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread3Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2023-08-29 03:26:10,337 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:26:10,337 INFO L85 PathProgramCache]: Analyzing trace with hash 1030370864, now seen corresponding path program 1 times [2023-08-29 03:26:10,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:26:10,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789849730] [2023-08-29 03:26:10,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:26:10,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:26:10,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:26:10,385 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 03:26:10,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:26:10,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789849730] [2023-08-29 03:26:10,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789849730] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:26:10,387 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:26:10,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 03:26:10,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981638377] [2023-08-29 03:26:10,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:26:10,388 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 03:26:10,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:26:10,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 03:26:10,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 03:26:10,413 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 944 out of 1997 [2023-08-29 03:26:10,420 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 245 places, 249 transitions, 524 flow. Second operand has 3 states, 3 states have (on average 948.6666666666666) internal successors, (2846), 3 states have internal predecessors, (2846), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:26:10,420 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:26:10,420 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 944 of 1997 [2023-08-29 03:26:10,420 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:26:15,456 INFO L130 PetriNetUnfolder]: 22024/65988 cut-off events. [2023-08-29 03:26:15,456 INFO L131 PetriNetUnfolder]: For 594/594 co-relation queries the response was YES. [2023-08-29 03:26:15,742 INFO L83 FinitePrefix]: Finished finitePrefix Result has 97343 conditions, 65988 events. 22024/65988 cut-off events. For 594/594 co-relation queries the response was YES. Maximal size of possible extension queue 1514. Compared 868918 event pairs, 18617 based on Foata normal form. 0/57159 useless extension candidates. Maximal degree in co-relation 97338. Up to 30618 conditions per place. [2023-08-29 03:26:16,029 INFO L137 encePairwiseOnDemand]: 1990/1997 looper letters, 74 selfloop transitions, 1 changer transitions 0/243 dead transitions. [2023-08-29 03:26:16,029 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 241 places, 243 transitions, 662 flow [2023-08-29 03:26:16,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 03:26:16,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 03:26:16,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2912 transitions. [2023-08-29 03:26:16,035 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48606242697379404 [2023-08-29 03:26:16,035 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2912 transitions. [2023-08-29 03:26:16,035 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2912 transitions. [2023-08-29 03:26:16,036 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:26:16,036 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2912 transitions. [2023-08-29 03:26:16,040 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 970.6666666666666) internal successors, (2912), 3 states have internal predecessors, (2912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:26:16,047 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1997.0) internal successors, (7988), 4 states have internal predecessors, (7988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:26:16,048 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1997.0) internal successors, (7988), 4 states have internal predecessors, (7988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:26:16,048 INFO L175 Difference]: Start difference. First operand has 245 places, 249 transitions, 524 flow. Second operand 3 states and 2912 transitions. [2023-08-29 03:26:16,048 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 241 places, 243 transitions, 662 flow [2023-08-29 03:26:16,049 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 241 places, 243 transitions, 662 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 03:26:16,051 INFO L231 Difference]: Finished difference. Result has 241 places, 243 transitions, 514 flow [2023-08-29 03:26:16,052 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1997, PETRI_DIFFERENCE_MINUEND_FLOW=512, PETRI_DIFFERENCE_MINUEND_PLACES=239, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=243, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=242, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=514, PETRI_PLACES=241, PETRI_TRANSITIONS=243} [2023-08-29 03:26:16,052 INFO L281 CegarLoopForPetriNet]: 318 programPoint places, -77 predicate places. [2023-08-29 03:26:16,052 INFO L495 AbstractCegarLoop]: Abstraction has has 241 places, 243 transitions, 514 flow [2023-08-29 03:26:16,061 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 948.6666666666666) internal successors, (2846), 3 states have internal predecessors, (2846), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:26:16,061 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:26:16,061 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:26:16,061 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-29 03:26:16,061 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2023-08-29 03:26:16,061 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:26:16,061 INFO L85 PathProgramCache]: Analyzing trace with hash -1625690359, now seen corresponding path program 1 times [2023-08-29 03:26:16,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:26:16,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488254253] [2023-08-29 03:26:16,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:26:16,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:26:16,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:26:16,163 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 03:26:16,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:26:16,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488254253] [2023-08-29 03:26:16,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [488254253] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:26:16,163 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:26:16,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 03:26:16,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281584353] [2023-08-29 03:26:16,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:26:16,164 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 03:26:16,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:26:16,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 03:26:16,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 03:26:16,303 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 961 out of 1997 [2023-08-29 03:26:16,305 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 241 places, 243 transitions, 514 flow. Second operand has 3 states, 3 states have (on average 965.3333333333334) internal successors, (2896), 3 states have internal predecessors, (2896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:26:16,305 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:26:16,305 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 961 of 1997 [2023-08-29 03:26:16,305 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:26:19,394 INFO L130 PetriNetUnfolder]: 11509/37588 cut-off events. [2023-08-29 03:26:19,395 INFO L131 PetriNetUnfolder]: For 460/460 co-relation queries the response was YES. [2023-08-29 03:26:19,588 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54173 conditions, 37588 events. 11509/37588 cut-off events. For 460/460 co-relation queries the response was YES. Maximal size of possible extension queue 946. Compared 474063 event pairs, 9358 based on Foata normal form. 0/31878 useless extension candidates. Maximal degree in co-relation 54167. Up to 16012 conditions per place. [2023-08-29 03:26:19,749 INFO L137 encePairwiseOnDemand]: 1994/1997 looper letters, 63 selfloop transitions, 2 changer transitions 0/244 dead transitions. [2023-08-29 03:26:19,749 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 243 places, 244 transitions, 646 flow [2023-08-29 03:26:19,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 03:26:19,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 03:26:19,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2948 transitions. [2023-08-29 03:26:19,754 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4920714404940744 [2023-08-29 03:26:19,755 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2948 transitions. [2023-08-29 03:26:19,755 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2948 transitions. [2023-08-29 03:26:19,756 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:26:19,756 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2948 transitions. [2023-08-29 03:26:19,760 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 982.6666666666666) internal successors, (2948), 3 states have internal predecessors, (2948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:26:19,765 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1997.0) internal successors, (7988), 4 states have internal predecessors, (7988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:26:19,766 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1997.0) internal successors, (7988), 4 states have internal predecessors, (7988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:26:19,767 INFO L175 Difference]: Start difference. First operand has 241 places, 243 transitions, 514 flow. Second operand 3 states and 2948 transitions. [2023-08-29 03:26:19,767 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 243 places, 244 transitions, 646 flow [2023-08-29 03:26:19,768 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 242 places, 244 transitions, 645 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 03:26:19,770 INFO L231 Difference]: Finished difference. Result has 243 places, 244 transitions, 525 flow [2023-08-29 03:26:19,771 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1997, PETRI_DIFFERENCE_MINUEND_FLOW=513, PETRI_DIFFERENCE_MINUEND_PLACES=240, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=243, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=241, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=525, PETRI_PLACES=243, PETRI_TRANSITIONS=244} [2023-08-29 03:26:19,773 INFO L281 CegarLoopForPetriNet]: 318 programPoint places, -75 predicate places. [2023-08-29 03:26:19,773 INFO L495 AbstractCegarLoop]: Abstraction has has 243 places, 244 transitions, 525 flow [2023-08-29 03:26:19,774 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 965.3333333333334) internal successors, (2896), 3 states have internal predecessors, (2896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:26:19,774 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:26:19,774 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:26:19,774 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-29 03:26:19,774 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2023-08-29 03:26:19,775 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:26:19,775 INFO L85 PathProgramCache]: Analyzing trace with hash 1409368287, now seen corresponding path program 1 times [2023-08-29 03:26:19,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:26:19,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411623969] [2023-08-29 03:26:19,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:26:19,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:26:19,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:26:19,891 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 03:26:19,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:26:19,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411623969] [2023-08-29 03:26:19,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411623969] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:26:19,892 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:26:19,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-29 03:26:19,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702282405] [2023-08-29 03:26:19,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:26:19,893 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-29 03:26:19,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:26:19,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-29 03:26:19,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-29 03:26:20,074 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 961 out of 1997 [2023-08-29 03:26:20,077 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 243 places, 244 transitions, 525 flow. Second operand has 4 states, 4 states have (on average 964.5) internal successors, (3858), 4 states have internal predecessors, (3858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:26:20,077 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:26:20,077 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 961 of 1997 [2023-08-29 03:26:20,077 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:26:22,802 INFO L130 PetriNetUnfolder]: 11509/37589 cut-off events. [2023-08-29 03:26:22,802 INFO L131 PetriNetUnfolder]: For 460/460 co-relation queries the response was YES. [2023-08-29 03:26:22,967 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54181 conditions, 37589 events. 11509/37589 cut-off events. For 460/460 co-relation queries the response was YES. Maximal size of possible extension queue 946. Compared 474308 event pairs, 9358 based on Foata normal form. 0/31879 useless extension candidates. Maximal degree in co-relation 54174. Up to 16012 conditions per place. [2023-08-29 03:26:23,101 INFO L137 encePairwiseOnDemand]: 1993/1997 looper letters, 63 selfloop transitions, 3 changer transitions 0/245 dead transitions. [2023-08-29 03:26:23,101 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 246 places, 245 transitions, 659 flow [2023-08-29 03:26:23,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-29 03:26:23,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-29 03:26:23,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 3909 transitions. [2023-08-29 03:26:23,107 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48935903855783675 [2023-08-29 03:26:23,107 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 3909 transitions. [2023-08-29 03:26:23,108 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 3909 transitions. [2023-08-29 03:26:23,109 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:26:23,109 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 3909 transitions. [2023-08-29 03:26:23,113 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 977.25) internal successors, (3909), 4 states have internal predecessors, (3909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:26:23,119 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 1997.0) internal successors, (9985), 5 states have internal predecessors, (9985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:26:23,120 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 1997.0) internal successors, (9985), 5 states have internal predecessors, (9985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:26:23,120 INFO L175 Difference]: Start difference. First operand has 243 places, 244 transitions, 525 flow. Second operand 4 states and 3909 transitions. [2023-08-29 03:26:23,120 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 246 places, 245 transitions, 659 flow [2023-08-29 03:26:23,122 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 245 places, 245 transitions, 655 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-08-29 03:26:23,124 INFO L231 Difference]: Finished difference. Result has 246 places, 245 transitions, 535 flow [2023-08-29 03:26:23,125 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1997, PETRI_DIFFERENCE_MINUEND_FLOW=521, PETRI_DIFFERENCE_MINUEND_PLACES=242, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=244, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=241, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=535, PETRI_PLACES=246, PETRI_TRANSITIONS=245} [2023-08-29 03:26:23,125 INFO L281 CegarLoopForPetriNet]: 318 programPoint places, -72 predicate places. [2023-08-29 03:26:23,125 INFO L495 AbstractCegarLoop]: Abstraction has has 246 places, 245 transitions, 535 flow [2023-08-29 03:26:23,126 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 964.5) internal successors, (3858), 4 states have internal predecessors, (3858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:26:23,126 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:26:23,126 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:26:23,126 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-29 03:26:23,126 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2023-08-29 03:26:23,127 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:26:23,127 INFO L85 PathProgramCache]: Analyzing trace with hash -1181819343, now seen corresponding path program 1 times [2023-08-29 03:26:23,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:26:23,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683721088] [2023-08-29 03:26:23,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:26:23,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:26:23,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:26:23,211 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 03:26:23,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:26:23,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683721088] [2023-08-29 03:26:23,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1683721088] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:26:23,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:26:23,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-29 03:26:23,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654019821] [2023-08-29 03:26:23,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:26:23,212 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-29 03:26:23,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:26:23,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-29 03:26:23,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-29 03:26:23,341 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 961 out of 1997 [2023-08-29 03:26:23,343 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 246 places, 245 transitions, 535 flow. Second operand has 4 states, 4 states have (on average 964.75) internal successors, (3859), 4 states have internal predecessors, (3859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:26:23,344 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:26:23,344 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 961 of 1997 [2023-08-29 03:26:23,344 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:26:26,085 INFO L130 PetriNetUnfolder]: 11509/37590 cut-off events. [2023-08-29 03:26:26,085 INFO L131 PetriNetUnfolder]: For 463/463 co-relation queries the response was YES. [2023-08-29 03:26:26,280 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54188 conditions, 37590 events. 11509/37590 cut-off events. For 463/463 co-relation queries the response was YES. Maximal size of possible extension queue 946. Compared 474143 event pairs, 9358 based on Foata normal form. 0/31881 useless extension candidates. Maximal degree in co-relation 54180. Up to 16012 conditions per place. [2023-08-29 03:26:26,420 INFO L137 encePairwiseOnDemand]: 1992/1997 looper letters, 63 selfloop transitions, 4 changer transitions 0/246 dead transitions. [2023-08-29 03:26:26,420 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 249 places, 246 transitions, 671 flow [2023-08-29 03:26:26,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-29 03:26:26,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-29 03:26:26,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 3910 transitions. [2023-08-29 03:26:26,426 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4894842263395093 [2023-08-29 03:26:26,427 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 3910 transitions. [2023-08-29 03:26:26,427 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 3910 transitions. [2023-08-29 03:26:26,428 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:26:26,428 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 3910 transitions. [2023-08-29 03:26:26,432 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 977.5) internal successors, (3910), 4 states have internal predecessors, (3910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:26:26,439 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 1997.0) internal successors, (9985), 5 states have internal predecessors, (9985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:26:26,440 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 1997.0) internal successors, (9985), 5 states have internal predecessors, (9985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:26:26,441 INFO L175 Difference]: Start difference. First operand has 246 places, 245 transitions, 535 flow. Second operand 4 states and 3910 transitions. [2023-08-29 03:26:26,441 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 249 places, 246 transitions, 671 flow [2023-08-29 03:26:26,442 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 247 places, 246 transitions, 665 flow, removed 1 selfloop flow, removed 2 redundant places. [2023-08-29 03:26:26,444 INFO L231 Difference]: Finished difference. Result has 248 places, 246 transitions, 547 flow [2023-08-29 03:26:26,444 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1997, PETRI_DIFFERENCE_MINUEND_FLOW=529, PETRI_DIFFERENCE_MINUEND_PLACES=244, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=245, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=241, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=547, PETRI_PLACES=248, PETRI_TRANSITIONS=246} [2023-08-29 03:26:26,446 INFO L281 CegarLoopForPetriNet]: 318 programPoint places, -70 predicate places. [2023-08-29 03:26:26,447 INFO L495 AbstractCegarLoop]: Abstraction has has 248 places, 246 transitions, 547 flow [2023-08-29 03:26:26,447 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 964.75) internal successors, (3859), 4 states have internal predecessors, (3859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:26:26,447 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:26:26,447 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 03:26:26,448 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-29 03:26:26,448 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2023-08-29 03:26:26,448 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:26:26,448 INFO L85 PathProgramCache]: Analyzing trace with hash -429197971, now seen corresponding path program 1 times [2023-08-29 03:26:26,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:26:26,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525842421] [2023-08-29 03:26:26,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:26:26,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:26:26,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:26:26,633 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-29 03:26:26,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:26:26,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525842421] [2023-08-29 03:26:26,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [525842421] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-29 03:26:26,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1231903768] [2023-08-29 03:26:26,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:26:26,635 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 03:26:26,635 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 03:26:26,642 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-29 03:26:26,644 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-08-29 03:26:26,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:26:26,800 INFO L263 TraceCheckSpWp]: Trace formula consists of 424 conjuncts, 5 conjunts are in the unsatisfiable core [2023-08-29 03:26:26,806 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 03:26:26,870 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-29 03:26:26,870 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-29 03:26:26,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1231903768] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:26:26,871 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-29 03:26:26,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2023-08-29 03:26:26,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526965768] [2023-08-29 03:26:26,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:26:26,871 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-29 03:26:26,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:26:26,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-29 03:26:26,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-08-29 03:26:27,029 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 961 out of 1997 [2023-08-29 03:26:27,030 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 248 places, 246 transitions, 547 flow. Second operand has 4 states, 4 states have (on average 965.0) internal successors, (3860), 4 states have internal predecessors, (3860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:26:27,030 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:26:27,031 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 961 of 1997 [2023-08-29 03:26:27,031 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:26:30,039 INFO L130 PetriNetUnfolder]: 11509/37591 cut-off events. [2023-08-29 03:26:30,039 INFO L131 PetriNetUnfolder]: For 464/464 co-relation queries the response was YES. [2023-08-29 03:26:30,153 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54196 conditions, 37591 events. 11509/37591 cut-off events. For 464/464 co-relation queries the response was YES. Maximal size of possible extension queue 946. Compared 473917 event pairs, 9358 based on Foata normal form. 0/31883 useless extension candidates. Maximal degree in co-relation 54187. Up to 16014 conditions per place. [2023-08-29 03:26:30,259 INFO L137 encePairwiseOnDemand]: 1993/1997 looper letters, 65 selfloop transitions, 3 changer transitions 0/247 dead transitions. [2023-08-29 03:26:30,259 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 251 places, 247 transitions, 685 flow [2023-08-29 03:26:30,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-29 03:26:30,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-29 03:26:30,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 3909 transitions. [2023-08-29 03:26:30,265 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48935903855783675 [2023-08-29 03:26:30,265 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 3909 transitions. [2023-08-29 03:26:30,265 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 3909 transitions. [2023-08-29 03:26:30,266 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:26:30,266 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 3909 transitions. [2023-08-29 03:26:30,271 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 977.25) internal successors, (3909), 4 states have internal predecessors, (3909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:26:30,275 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 1997.0) internal successors, (9985), 5 states have internal predecessors, (9985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:26:30,276 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 1997.0) internal successors, (9985), 5 states have internal predecessors, (9985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:26:30,276 INFO L175 Difference]: Start difference. First operand has 248 places, 246 transitions, 547 flow. Second operand 4 states and 3909 transitions. [2023-08-29 03:26:30,276 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 251 places, 247 transitions, 685 flow [2023-08-29 03:26:30,277 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 249 places, 247 transitions, 681 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 03:26:30,279 INFO L231 Difference]: Finished difference. Result has 250 places, 247 transitions, 557 flow [2023-08-29 03:26:30,280 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1997, PETRI_DIFFERENCE_MINUEND_FLOW=543, PETRI_DIFFERENCE_MINUEND_PLACES=246, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=246, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=243, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=557, PETRI_PLACES=250, PETRI_TRANSITIONS=247} [2023-08-29 03:26:30,280 INFO L281 CegarLoopForPetriNet]: 318 programPoint places, -68 predicate places. [2023-08-29 03:26:30,280 INFO L495 AbstractCegarLoop]: Abstraction has has 250 places, 247 transitions, 557 flow [2023-08-29 03:26:30,281 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 965.0) internal successors, (3860), 4 states have internal predecessors, (3860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:26:30,281 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:26:30,281 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 03:26:30,286 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-08-29 03:26:30,486 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 03:26:30,487 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2023-08-29 03:26:30,487 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:26:30,487 INFO L85 PathProgramCache]: Analyzing trace with hash 729237032, now seen corresponding path program 1 times [2023-08-29 03:26:30,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:26:30,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517921019] [2023-08-29 03:26:30,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:26:30,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:26:30,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:26:30,650 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-29 03:26:30,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:26:30,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517921019] [2023-08-29 03:26:30,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1517921019] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-29 03:26:30,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [768190992] [2023-08-29 03:26:30,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:26:30,651 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 03:26:30,651 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 03:26:30,652 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-29 03:26:30,654 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-08-29 03:26:30,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:26:30,805 INFO L263 TraceCheckSpWp]: Trace formula consists of 435 conjuncts, 5 conjunts are in the unsatisfiable core [2023-08-29 03:26:30,807 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 03:26:30,841 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-08-29 03:26:30,841 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-29 03:26:30,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [768190992] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:26:30,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-29 03:26:30,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2023-08-29 03:26:30,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765991990] [2023-08-29 03:26:30,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:26:30,842 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-29 03:26:30,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:26:30,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-29 03:26:30,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-08-29 03:26:30,998 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 961 out of 1997 [2023-08-29 03:26:31,000 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 250 places, 247 transitions, 557 flow. Second operand has 4 states, 4 states have (on average 965.25) internal successors, (3861), 4 states have internal predecessors, (3861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:26:31,000 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:26:31,000 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 961 of 1997 [2023-08-29 03:26:31,000 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:26:33,873 INFO L130 PetriNetUnfolder]: 11509/37592 cut-off events. [2023-08-29 03:26:33,873 INFO L131 PetriNetUnfolder]: For 463/463 co-relation queries the response was YES. [2023-08-29 03:26:34,110 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54203 conditions, 37592 events. 11509/37592 cut-off events. For 463/463 co-relation queries the response was YES. Maximal size of possible extension queue 946. Compared 473967 event pairs, 9358 based on Foata normal form. 0/31885 useless extension candidates. Maximal degree in co-relation 54193. Up to 16015 conditions per place. [2023-08-29 03:26:34,275 INFO L137 encePairwiseOnDemand]: 1993/1997 looper letters, 66 selfloop transitions, 3 changer transitions 0/248 dead transitions. [2023-08-29 03:26:34,275 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 253 places, 248 transitions, 697 flow [2023-08-29 03:26:34,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-29 03:26:34,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-29 03:26:34,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 3909 transitions. [2023-08-29 03:26:34,281 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48935903855783675 [2023-08-29 03:26:34,281 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 3909 transitions. [2023-08-29 03:26:34,281 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 3909 transitions. [2023-08-29 03:26:34,282 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:26:34,282 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 3909 transitions. [2023-08-29 03:26:34,286 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 977.25) internal successors, (3909), 4 states have internal predecessors, (3909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:26:34,291 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 1997.0) internal successors, (9985), 5 states have internal predecessors, (9985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:26:34,292 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 1997.0) internal successors, (9985), 5 states have internal predecessors, (9985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:26:34,292 INFO L175 Difference]: Start difference. First operand has 250 places, 247 transitions, 557 flow. Second operand 4 states and 3909 transitions. [2023-08-29 03:26:34,292 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 253 places, 248 transitions, 697 flow [2023-08-29 03:26:34,293 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 251 places, 248 transitions, 691 flow, removed 1 selfloop flow, removed 2 redundant places. [2023-08-29 03:26:34,295 INFO L231 Difference]: Finished difference. Result has 252 places, 248 transitions, 565 flow [2023-08-29 03:26:34,296 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1997, PETRI_DIFFERENCE_MINUEND_FLOW=551, PETRI_DIFFERENCE_MINUEND_PLACES=248, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=247, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=244, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=565, PETRI_PLACES=252, PETRI_TRANSITIONS=248} [2023-08-29 03:26:34,296 INFO L281 CegarLoopForPetriNet]: 318 programPoint places, -66 predicate places. [2023-08-29 03:26:34,296 INFO L495 AbstractCegarLoop]: Abstraction has has 252 places, 248 transitions, 565 flow [2023-08-29 03:26:34,297 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 965.25) internal successors, (3861), 4 states have internal predecessors, (3861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:26:34,297 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:26:34,297 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 03:26:34,303 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-08-29 03:26:34,501 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-08-29 03:26:34,502 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2023-08-29 03:26:34,502 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:26:34,502 INFO L85 PathProgramCache]: Analyzing trace with hash -1357595980, now seen corresponding path program 1 times [2023-08-29 03:26:34,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:26:34,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368789586] [2023-08-29 03:26:34,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:26:34,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:26:34,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:26:34,604 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-08-29 03:26:34,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:26:34,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368789586] [2023-08-29 03:26:34,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1368789586] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:26:34,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:26:34,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-29 03:26:34,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579386585] [2023-08-29 03:26:34,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:26:34,606 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-29 03:26:34,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:26:34,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-29 03:26:34,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-29 03:26:34,758 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 961 out of 1997 [2023-08-29 03:26:34,760 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 252 places, 248 transitions, 565 flow. Second operand has 4 states, 4 states have (on average 965.5) internal successors, (3862), 4 states have internal predecessors, (3862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:26:34,760 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:26:34,760 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 961 of 1997 [2023-08-29 03:26:34,760 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:26:37,590 INFO L130 PetriNetUnfolder]: 11509/37593 cut-off events. [2023-08-29 03:26:37,590 INFO L131 PetriNetUnfolder]: For 465/465 co-relation queries the response was YES. [2023-08-29 03:26:37,867 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54209 conditions, 37593 events. 11509/37593 cut-off events. For 465/465 co-relation queries the response was YES. Maximal size of possible extension queue 946. Compared 473996 event pairs, 9358 based on Foata normal form. 0/31887 useless extension candidates. Maximal degree in co-relation 54198. Up to 16016 conditions per place. [2023-08-29 03:26:38,010 INFO L137 encePairwiseOnDemand]: 1993/1997 looper letters, 67 selfloop transitions, 3 changer transitions 0/249 dead transitions. [2023-08-29 03:26:38,010 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 255 places, 249 transitions, 707 flow [2023-08-29 03:26:38,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-29 03:26:38,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-29 03:26:38,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 3909 transitions. [2023-08-29 03:26:38,015 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48935903855783675 [2023-08-29 03:26:38,015 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 3909 transitions. [2023-08-29 03:26:38,015 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 3909 transitions. [2023-08-29 03:26:38,016 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:26:38,016 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 3909 transitions. [2023-08-29 03:26:38,019 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 977.25) internal successors, (3909), 4 states have internal predecessors, (3909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:26:38,023 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 1997.0) internal successors, (9985), 5 states have internal predecessors, (9985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:26:38,024 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 1997.0) internal successors, (9985), 5 states have internal predecessors, (9985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:26:38,024 INFO L175 Difference]: Start difference. First operand has 252 places, 248 transitions, 565 flow. Second operand 4 states and 3909 transitions. [2023-08-29 03:26:38,024 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 255 places, 249 transitions, 707 flow [2023-08-29 03:26:38,026 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 253 places, 249 transitions, 701 flow, removed 1 selfloop flow, removed 2 redundant places. [2023-08-29 03:26:38,028 INFO L231 Difference]: Finished difference. Result has 254 places, 249 transitions, 573 flow [2023-08-29 03:26:38,028 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1997, PETRI_DIFFERENCE_MINUEND_FLOW=559, PETRI_DIFFERENCE_MINUEND_PLACES=250, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=248, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=245, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=573, PETRI_PLACES=254, PETRI_TRANSITIONS=249} [2023-08-29 03:26:38,029 INFO L281 CegarLoopForPetriNet]: 318 programPoint places, -64 predicate places. [2023-08-29 03:26:38,029 INFO L495 AbstractCegarLoop]: Abstraction has has 254 places, 249 transitions, 573 flow [2023-08-29 03:26:38,029 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 965.5) internal successors, (3862), 4 states have internal predecessors, (3862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:26:38,029 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:26:38,030 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 03:26:38,030 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-29 03:26:38,030 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2023-08-29 03:26:38,030 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:26:38,030 INFO L85 PathProgramCache]: Analyzing trace with hash 296542500, now seen corresponding path program 1 times [2023-08-29 03:26:38,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:26:38,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535441598] [2023-08-29 03:26:38,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:26:38,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:26:38,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:26:38,372 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-08-29 03:26:38,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:26:38,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535441598] [2023-08-29 03:26:38,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [535441598] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:26:38,373 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:26:38,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 03:26:38,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008427057] [2023-08-29 03:26:38,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:26:38,373 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 03:26:38,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:26:38,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 03:26:38,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 03:26:38,953 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 951 out of 1997 [2023-08-29 03:26:38,956 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 254 places, 249 transitions, 573 flow. Second operand has 6 states, 6 states have (on average 954.8333333333334) internal successors, (5729), 6 states have internal predecessors, (5729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:26:38,956 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:26:38,956 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 951 of 1997 [2023-08-29 03:26:38,956 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:26:44,417 INFO L130 PetriNetUnfolder]: 35817/70365 cut-off events. [2023-08-29 03:26:44,417 INFO L131 PetriNetUnfolder]: For 1119/1119 co-relation queries the response was YES. [2023-08-29 03:26:44,941 INFO L83 FinitePrefix]: Finished finitePrefix Result has 119785 conditions, 70365 events. 35817/70365 cut-off events. For 1119/1119 co-relation queries the response was YES. Maximal size of possible extension queue 1958. Compared 750369 event pairs, 6750 based on Foata normal form. 0/58859 useless extension candidates. Maximal degree in co-relation 119773. Up to 17208 conditions per place. [2023-08-29 03:26:45,274 INFO L137 encePairwiseOnDemand]: 1992/1997 looper letters, 234 selfloop transitions, 4 changer transitions 0/412 dead transitions. [2023-08-29 03:26:45,274 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 258 places, 412 transitions, 1395 flow [2023-08-29 03:26:45,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 03:26:45,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 03:26:45,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 5934 transitions. [2023-08-29 03:26:45,281 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49524286429644465 [2023-08-29 03:26:45,281 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 5934 transitions. [2023-08-29 03:26:45,281 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 5934 transitions. [2023-08-29 03:26:45,282 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:26:45,282 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 5934 transitions. [2023-08-29 03:26:45,287 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 989.0) internal successors, (5934), 6 states have internal predecessors, (5934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:26:45,293 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1997.0) internal successors, (13979), 7 states have internal predecessors, (13979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:26:45,293 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1997.0) internal successors, (13979), 7 states have internal predecessors, (13979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:26:45,294 INFO L175 Difference]: Start difference. First operand has 254 places, 249 transitions, 573 flow. Second operand 6 states and 5934 transitions. [2023-08-29 03:26:45,294 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 258 places, 412 transitions, 1395 flow [2023-08-29 03:26:45,296 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 256 places, 412 transitions, 1389 flow, removed 1 selfloop flow, removed 2 redundant places. [2023-08-29 03:26:45,298 INFO L231 Difference]: Finished difference. Result has 256 places, 248 transitions, 573 flow [2023-08-29 03:26:45,299 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1997, PETRI_DIFFERENCE_MINUEND_FLOW=565, PETRI_DIFFERENCE_MINUEND_PLACES=251, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=248, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=244, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=573, PETRI_PLACES=256, PETRI_TRANSITIONS=248} [2023-08-29 03:26:45,299 INFO L281 CegarLoopForPetriNet]: 318 programPoint places, -62 predicate places. [2023-08-29 03:26:45,299 INFO L495 AbstractCegarLoop]: Abstraction has has 256 places, 248 transitions, 573 flow [2023-08-29 03:26:45,300 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 954.8333333333334) internal successors, (5729), 6 states have internal predecessors, (5729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:26:45,300 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:26:45,300 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] [2023-08-29 03:26:45,300 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-29 03:26:45,300 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2023-08-29 03:26:45,301 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:26:45,301 INFO L85 PathProgramCache]: Analyzing trace with hash -1466481967, now seen corresponding path program 1 times [2023-08-29 03:26:45,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:26:45,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961448027] [2023-08-29 03:26:45,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:26:45,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:26:45,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:26:45,644 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-08-29 03:26:45,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:26:45,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961448027] [2023-08-29 03:26:45,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [961448027] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:26:45,644 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:26:45,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 03:26:45,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154514026] [2023-08-29 03:26:45,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:26:45,645 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 03:26:45,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:26:45,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 03:26:45,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 03:26:46,243 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 932 out of 1997 [2023-08-29 03:26:46,246 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 256 places, 248 transitions, 573 flow. Second operand has 6 states, 6 states have (on average 935.1666666666666) internal successors, (5611), 6 states have internal predecessors, (5611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:26:46,246 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:26:46,246 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 932 of 1997 [2023-08-29 03:26:46,246 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:26:54,737 INFO L130 PetriNetUnfolder]: 37620/91878 cut-off events. [2023-08-29 03:26:54,737 INFO L131 PetriNetUnfolder]: For 7425/7425 co-relation queries the response was YES. [2023-08-29 03:26:55,147 INFO L83 FinitePrefix]: Finished finitePrefix Result has 152349 conditions, 91878 events. 37620/91878 cut-off events. For 7425/7425 co-relation queries the response was YES. Maximal size of possible extension queue 1964. Compared 1115818 event pairs, 8510 based on Foata normal form. 0/82484 useless extension candidates. Maximal degree in co-relation 152337. Up to 50469 conditions per place. [2023-08-29 03:26:55,495 INFO L137 encePairwiseOnDemand]: 1985/1997 looper letters, 192 selfloop transitions, 8 changer transitions 0/356 dead transitions. [2023-08-29 03:26:55,495 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 257 places, 356 transitions, 1205 flow [2023-08-29 03:26:55,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 03:26:55,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 03:26:55,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 5789 transitions. [2023-08-29 03:26:55,502 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4831413787347688 [2023-08-29 03:26:55,502 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 5789 transitions. [2023-08-29 03:26:55,502 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 5789 transitions. [2023-08-29 03:26:55,503 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:26:55,503 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 5789 transitions. [2023-08-29 03:26:55,507 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 964.8333333333334) internal successors, (5789), 6 states have internal predecessors, (5789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:26:55,513 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1997.0) internal successors, (13979), 7 states have internal predecessors, (13979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:26:55,513 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1997.0) internal successors, (13979), 7 states have internal predecessors, (13979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:26:55,514 INFO L175 Difference]: Start difference. First operand has 256 places, 248 transitions, 573 flow. Second operand 6 states and 5789 transitions. [2023-08-29 03:26:55,514 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 257 places, 356 transitions, 1205 flow [2023-08-29 03:26:55,520 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 253 places, 356 transitions, 1190 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-29 03:26:55,522 INFO L231 Difference]: Finished difference. Result has 257 places, 252 transitions, 620 flow [2023-08-29 03:26:55,523 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1997, PETRI_DIFFERENCE_MINUEND_FLOW=558, PETRI_DIFFERENCE_MINUEND_PLACES=248, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=244, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=236, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=620, PETRI_PLACES=257, PETRI_TRANSITIONS=252} [2023-08-29 03:26:55,523 INFO L281 CegarLoopForPetriNet]: 318 programPoint places, -61 predicate places. [2023-08-29 03:26:55,523 INFO L495 AbstractCegarLoop]: Abstraction has has 257 places, 252 transitions, 620 flow [2023-08-29 03:26:55,524 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 935.1666666666666) internal successors, (5611), 6 states have internal predecessors, (5611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:26:55,524 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:26:55,524 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] [2023-08-29 03:26:55,524 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-29 03:26:55,524 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread3Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2023-08-29 03:26:55,525 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:26:55,525 INFO L85 PathProgramCache]: Analyzing trace with hash -634481860, now seen corresponding path program 1 times [2023-08-29 03:26:55,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:26:55,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498127358] [2023-08-29 03:26:55,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:26:55,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:26:55,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:26:55,846 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-08-29 03:26:55,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:26:55,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498127358] [2023-08-29 03:26:55,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1498127358] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:26:55,847 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:26:55,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 03:26:55,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174669400] [2023-08-29 03:26:55,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:26:55,849 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 03:26:55,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:26:55,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 03:26:55,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 03:26:56,491 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 932 out of 1997 [2023-08-29 03:26:56,494 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 257 places, 252 transitions, 620 flow. Second operand has 6 states, 6 states have (on average 935.8333333333334) internal successors, (5615), 6 states have internal predecessors, (5615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:26:56,494 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:26:56,494 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 932 of 1997 [2023-08-29 03:26:56,494 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:27:04,108 INFO L130 PetriNetUnfolder]: 30861/90144 cut-off events. [2023-08-29 03:27:04,108 INFO L131 PetriNetUnfolder]: For 752/833 co-relation queries the response was YES. [2023-08-29 03:27:04,591 INFO L83 FinitePrefix]: Finished finitePrefix Result has 134591 conditions, 90144 events. 30861/90144 cut-off events. For 752/833 co-relation queries the response was YES. Maximal size of possible extension queue 1950. Compared 1213057 event pairs, 14758 based on Foata normal form. 0/77842 useless extension candidates. Maximal degree in co-relation 134576. Up to 40273 conditions per place. [2023-08-29 03:27:04,863 INFO L137 encePairwiseOnDemand]: 1985/1997 looper letters, 170 selfloop transitions, 8 changer transitions 0/340 dead transitions. [2023-08-29 03:27:04,863 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 258 places, 340 transitions, 1168 flow [2023-08-29 03:27:04,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 03:27:04,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 03:27:04,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 5767 transitions. [2023-08-29 03:27:04,871 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4813052912702387 [2023-08-29 03:27:04,872 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 5767 transitions. [2023-08-29 03:27:04,872 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 5767 transitions. [2023-08-29 03:27:04,873 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:27:04,873 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 5767 transitions. [2023-08-29 03:27:04,878 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 961.1666666666666) internal successors, (5767), 6 states have internal predecessors, (5767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:27:04,883 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1997.0) internal successors, (13979), 7 states have internal predecessors, (13979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:27:04,884 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1997.0) internal successors, (13979), 7 states have internal predecessors, (13979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:27:04,884 INFO L175 Difference]: Start difference. First operand has 257 places, 252 transitions, 620 flow. Second operand 6 states and 5767 transitions. [2023-08-29 03:27:04,885 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 258 places, 340 transitions, 1168 flow [2023-08-29 03:27:04,887 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 258 places, 340 transitions, 1168 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 03:27:04,889 INFO L231 Difference]: Finished difference. Result has 262 places, 256 transitions, 674 flow [2023-08-29 03:27:04,889 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1997, PETRI_DIFFERENCE_MINUEND_FLOW=612, PETRI_DIFFERENCE_MINUEND_PLACES=253, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=248, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=240, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=674, PETRI_PLACES=262, PETRI_TRANSITIONS=256} [2023-08-29 03:27:04,890 INFO L281 CegarLoopForPetriNet]: 318 programPoint places, -56 predicate places. [2023-08-29 03:27:04,890 INFO L495 AbstractCegarLoop]: Abstraction has has 262 places, 256 transitions, 674 flow [2023-08-29 03:27:04,891 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 935.8333333333334) internal successors, (5615), 6 states have internal predecessors, (5615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:27:04,891 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:27:04,891 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] [2023-08-29 03:27:04,891 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-29 03:27:04,891 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thread2Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2023-08-29 03:27:04,891 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:27:04,892 INFO L85 PathProgramCache]: Analyzing trace with hash 305190290, now seen corresponding path program 1 times [2023-08-29 03:27:04,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:27:04,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63968031] [2023-08-29 03:27:04,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:27:04,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:27:05,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:27:05,083 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-08-29 03:27:05,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:27:05,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63968031] [2023-08-29 03:27:05,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [63968031] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:27:05,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:27:05,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 03:27:05,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332035475] [2023-08-29 03:27:05,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:27:05,088 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 03:27:05,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:27:05,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 03:27:05,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 03:27:05,099 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 962 out of 1997 [2023-08-29 03:27:05,101 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 262 places, 256 transitions, 674 flow. Second operand has 3 states, 3 states have (on average 968.3333333333334) internal successors, (2905), 3 states have internal predecessors, (2905), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:27:05,101 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:27:05,101 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 962 of 1997 [2023-08-29 03:27:05,101 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:27:10,805 INFO L130 PetriNetUnfolder]: 22916/62348 cut-off events. [2023-08-29 03:27:10,805 INFO L131 PetriNetUnfolder]: For 1736/1767 co-relation queries the response was YES. [2023-08-29 03:27:11,141 INFO L83 FinitePrefix]: Finished finitePrefix Result has 96983 conditions, 62348 events. 22916/62348 cut-off events. For 1736/1767 co-relation queries the response was YES. Maximal size of possible extension queue 1487. Compared 776092 event pairs, 6268 based on Foata normal form. 0/55302 useless extension candidates. Maximal degree in co-relation 96964. Up to 31845 conditions per place. [2023-08-29 03:27:11,307 INFO L137 encePairwiseOnDemand]: 1991/1997 looper letters, 98 selfloop transitions, 2 changer transitions 0/275 dead transitions. [2023-08-29 03:27:11,307 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 260 places, 275 transitions, 925 flow [2023-08-29 03:27:11,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 03:27:11,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 03:27:11,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2980 transitions. [2023-08-29 03:27:11,311 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4974127858454348 [2023-08-29 03:27:11,311 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2980 transitions. [2023-08-29 03:27:11,311 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2980 transitions. [2023-08-29 03:27:11,312 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:27:11,312 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2980 transitions. [2023-08-29 03:27:11,314 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 993.3333333333334) internal successors, (2980), 3 states have internal predecessors, (2980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:27:11,317 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1997.0) internal successors, (7988), 4 states have internal predecessors, (7988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:27:11,317 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1997.0) internal successors, (7988), 4 states have internal predecessors, (7988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:27:11,318 INFO L175 Difference]: Start difference. First operand has 262 places, 256 transitions, 674 flow. Second operand 3 states and 2980 transitions. [2023-08-29 03:27:11,318 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 260 places, 275 transitions, 925 flow [2023-08-29 03:27:11,320 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 260 places, 275 transitions, 925 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 03:27:11,322 INFO L231 Difference]: Finished difference. Result has 261 places, 254 transitions, 680 flow [2023-08-29 03:27:11,322 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1997, PETRI_DIFFERENCE_MINUEND_FLOW=666, PETRI_DIFFERENCE_MINUEND_PLACES=258, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=252, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=250, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=680, PETRI_PLACES=261, PETRI_TRANSITIONS=254} [2023-08-29 03:27:11,323 INFO L281 CegarLoopForPetriNet]: 318 programPoint places, -57 predicate places. [2023-08-29 03:27:11,323 INFO L495 AbstractCegarLoop]: Abstraction has has 261 places, 254 transitions, 680 flow [2023-08-29 03:27:11,323 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 968.3333333333334) internal successors, (2905), 3 states have internal predecessors, (2905), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:27:11,323 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:27:11,323 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 03:27:11,324 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-08-29 03:27:11,324 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting thread2Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2023-08-29 03:27:11,324 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:27:11,324 INFO L85 PathProgramCache]: Analyzing trace with hash 1230170132, now seen corresponding path program 1 times [2023-08-29 03:27:11,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:27:11,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764889961] [2023-08-29 03:27:11,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:27:11,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:27:11,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:27:11,359 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-08-29 03:27:11,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:27:11,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764889961] [2023-08-29 03:27:11,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [764889961] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:27:11,360 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:27:11,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 03:27:11,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789280728] [2023-08-29 03:27:11,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:27:11,361 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 03:27:11,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:27:11,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 03:27:11,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 03:27:11,381 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 944 out of 1997 [2023-08-29 03:27:11,382 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 261 places, 254 transitions, 680 flow. Second operand has 3 states, 3 states have (on average 950.6666666666666) internal successors, (2852), 3 states have internal predecessors, (2852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:27:11,382 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:27:11,382 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 944 of 1997 [2023-08-29 03:27:11,382 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:27:18,884 INFO L130 PetriNetUnfolder]: 29115/76935 cut-off events. [2023-08-29 03:27:18,884 INFO L131 PetriNetUnfolder]: For 3273/3318 co-relation queries the response was YES. [2023-08-29 03:27:19,373 INFO L83 FinitePrefix]: Finished finitePrefix Result has 122599 conditions, 76935 events. 29115/76935 cut-off events. For 3273/3318 co-relation queries the response was YES. Maximal size of possible extension queue 1868. Compared 974410 event pairs, 23332 based on Foata normal form. 0/69965 useless extension candidates. Maximal degree in co-relation 122579. Up to 41701 conditions per place. [2023-08-29 03:27:19,579 INFO L137 encePairwiseOnDemand]: 1990/1997 looper letters, 82 selfloop transitions, 1 changer transitions 0/248 dead transitions. [2023-08-29 03:27:19,579 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 257 places, 248 transitions, 834 flow [2023-08-29 03:27:19,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 03:27:19,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 03:27:19,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2911 transitions. [2023-08-29 03:27:19,583 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.485895509931564 [2023-08-29 03:27:19,583 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2911 transitions. [2023-08-29 03:27:19,583 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2911 transitions. [2023-08-29 03:27:19,584 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:27:19,584 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2911 transitions. [2023-08-29 03:27:19,586 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 970.3333333333334) internal successors, (2911), 3 states have internal predecessors, (2911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:27:19,589 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1997.0) internal successors, (7988), 4 states have internal predecessors, (7988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:27:19,589 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1997.0) internal successors, (7988), 4 states have internal predecessors, (7988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:27:19,589 INFO L175 Difference]: Start difference. First operand has 261 places, 254 transitions, 680 flow. Second operand 3 states and 2911 transitions. [2023-08-29 03:27:19,589 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 257 places, 248 transitions, 834 flow [2023-08-29 03:27:19,592 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 257 places, 248 transitions, 834 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 03:27:19,594 INFO L231 Difference]: Finished difference. Result has 257 places, 248 transitions, 670 flow [2023-08-29 03:27:19,594 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1997, PETRI_DIFFERENCE_MINUEND_FLOW=668, PETRI_DIFFERENCE_MINUEND_PLACES=255, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=248, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=247, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=670, PETRI_PLACES=257, PETRI_TRANSITIONS=248} [2023-08-29 03:27:19,595 INFO L281 CegarLoopForPetriNet]: 318 programPoint places, -61 predicate places. [2023-08-29 03:27:19,595 INFO L495 AbstractCegarLoop]: Abstraction has has 257 places, 248 transitions, 670 flow [2023-08-29 03:27:19,595 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 950.6666666666666) internal successors, (2852), 3 states have internal predecessors, (2852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:27:19,595 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:27:19,596 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, 1, 1, 1, 1, 1, 1] [2023-08-29 03:27:19,596 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-08-29 03:27:19,596 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting thread2Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2023-08-29 03:27:19,596 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:27:19,596 INFO L85 PathProgramCache]: Analyzing trace with hash 52370232, now seen corresponding path program 1 times [2023-08-29 03:27:19,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:27:19,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997665263] [2023-08-29 03:27:19,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:27:19,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:27:19,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:27:20,026 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-08-29 03:27:20,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:27:20,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997665263] [2023-08-29 03:27:20,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997665263] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:27:20,027 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:27:20,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 03:27:20,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854286473] [2023-08-29 03:27:20,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:27:20,028 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 03:27:20,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:27:20,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 03:27:20,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 03:27:20,642 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 932 out of 1997 [2023-08-29 03:27:20,645 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 257 places, 248 transitions, 670 flow. Second operand has 6 states, 6 states have (on average 935.8333333333334) internal successors, (5615), 6 states have internal predecessors, (5615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:27:20,645 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:27:20,645 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 932 of 1997 [2023-08-29 03:27:20,645 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:27:27,976 INFO L130 PetriNetUnfolder]: 36955/77616 cut-off events. [2023-08-29 03:27:27,976 INFO L131 PetriNetUnfolder]: For 4043/4090 co-relation queries the response was YES. [2023-08-29 03:27:28,451 INFO L83 FinitePrefix]: Finished finitePrefix Result has 135006 conditions, 77616 events. 36955/77616 cut-off events. For 4043/4090 co-relation queries the response was YES. Maximal size of possible extension queue 1769. Compared 855614 event pairs, 6990 based on Foata normal form. 0/70288 useless extension candidates. Maximal degree in co-relation 134985. Up to 46950 conditions per place. [2023-08-29 03:27:28,658 INFO L137 encePairwiseOnDemand]: 1985/1997 looper letters, 196 selfloop transitions, 8 changer transitions 0/360 dead transitions. [2023-08-29 03:27:28,658 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 258 places, 360 transitions, 1370 flow [2023-08-29 03:27:28,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 03:27:28,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 03:27:28,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 5782 transitions. [2023-08-29 03:27:28,664 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4825571690869638 [2023-08-29 03:27:28,664 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 5782 transitions. [2023-08-29 03:27:28,664 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 5782 transitions. [2023-08-29 03:27:28,665 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:27:28,665 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 5782 transitions. [2023-08-29 03:27:28,669 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 963.6666666666666) internal successors, (5782), 6 states have internal predecessors, (5782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:27:28,674 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1997.0) internal successors, (13979), 7 states have internal predecessors, (13979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:27:28,675 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1997.0) internal successors, (13979), 7 states have internal predecessors, (13979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:27:28,675 INFO L175 Difference]: Start difference. First operand has 257 places, 248 transitions, 670 flow. Second operand 6 states and 5782 transitions. [2023-08-29 03:27:28,675 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 258 places, 360 transitions, 1370 flow [2023-08-29 03:27:28,678 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 257 places, 360 transitions, 1369 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 03:27:28,681 INFO L231 Difference]: Finished difference. Result has 261 places, 252 transitions, 723 flow [2023-08-29 03:27:28,681 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1997, PETRI_DIFFERENCE_MINUEND_FLOW=661, PETRI_DIFFERENCE_MINUEND_PLACES=252, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=244, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=236, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=723, PETRI_PLACES=261, PETRI_TRANSITIONS=252} [2023-08-29 03:27:28,682 INFO L281 CegarLoopForPetriNet]: 318 programPoint places, -57 predicate places. [2023-08-29 03:27:28,682 INFO L495 AbstractCegarLoop]: Abstraction has has 261 places, 252 transitions, 723 flow [2023-08-29 03:27:28,683 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 935.8333333333334) internal successors, (5615), 6 states have internal predecessors, (5615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:27:28,683 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:27:28,683 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, 1, 1, 1, 1, 1, 1] [2023-08-29 03:27:28,683 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-08-29 03:27:28,683 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting thread1Err8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2023-08-29 03:27:28,683 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:27:28,684 INFO L85 PathProgramCache]: Analyzing trace with hash -1573677098, now seen corresponding path program 1 times [2023-08-29 03:27:28,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:27:28,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341134238] [2023-08-29 03:27:28,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:27:28,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:27:28,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:27:28,723 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-08-29 03:27:28,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:27:28,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341134238] [2023-08-29 03:27:28,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [341134238] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:27:28,724 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:27:28,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 03:27:28,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470988241] [2023-08-29 03:27:28,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:27:28,725 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 03:27:28,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:27:28,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 03:27:28,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 03:27:28,732 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 968 out of 1997 [2023-08-29 03:27:28,733 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 261 places, 252 transitions, 723 flow. Second operand has 3 states, 3 states have (on average 974.3333333333334) internal successors, (2923), 3 states have internal predecessors, (2923), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:27:28,733 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:27:28,733 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 968 of 1997 [2023-08-29 03:27:28,733 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:27:34,937 INFO L130 PetriNetUnfolder]: 20298/66429 cut-off events. [2023-08-29 03:27:34,937 INFO L131 PetriNetUnfolder]: For 2587/2668 co-relation queries the response was YES. [2023-08-29 03:27:35,461 INFO L83 FinitePrefix]: Finished finitePrefix Result has 100506 conditions, 66429 events. 20298/66429 cut-off events. For 2587/2668 co-relation queries the response was YES. Maximal size of possible extension queue 1574. Compared 907340 event pairs, 4720 based on Foata normal form. 0/60194 useless extension candidates. Maximal degree in co-relation 100482. Up to 24477 conditions per place. [2023-08-29 03:27:35,632 INFO L137 encePairwiseOnDemand]: 1993/1997 looper letters, 108 selfloop transitions, 2 changer transitions 0/285 dead transitions. [2023-08-29 03:27:35,632 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 261 places, 285 transitions, 1032 flow [2023-08-29 03:27:35,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 03:27:35,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 03:27:35,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3002 transitions. [2023-08-29 03:27:35,635 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.501084960774495 [2023-08-29 03:27:35,635 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3002 transitions. [2023-08-29 03:27:35,635 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3002 transitions. [2023-08-29 03:27:35,635 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:27:35,635 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3002 transitions. [2023-08-29 03:27:35,638 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1000.6666666666666) internal successors, (3002), 3 states have internal predecessors, (3002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:27:35,641 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1997.0) internal successors, (7988), 4 states have internal predecessors, (7988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:27:35,641 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1997.0) internal successors, (7988), 4 states have internal predecessors, (7988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:27:35,641 INFO L175 Difference]: Start difference. First operand has 261 places, 252 transitions, 723 flow. Second operand 3 states and 3002 transitions. [2023-08-29 03:27:35,641 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 261 places, 285 transitions, 1032 flow [2023-08-29 03:27:35,649 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 261 places, 285 transitions, 1032 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 03:27:35,651 INFO L231 Difference]: Finished difference. Result has 262 places, 252 transitions, 733 flow [2023-08-29 03:27:35,651 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1997, PETRI_DIFFERENCE_MINUEND_FLOW=719, PETRI_DIFFERENCE_MINUEND_PLACES=259, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=250, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=248, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=733, PETRI_PLACES=262, PETRI_TRANSITIONS=252} [2023-08-29 03:27:35,651 INFO L281 CegarLoopForPetriNet]: 318 programPoint places, -56 predicate places. [2023-08-29 03:27:35,652 INFO L495 AbstractCegarLoop]: Abstraction has has 262 places, 252 transitions, 733 flow [2023-08-29 03:27:35,652 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 974.3333333333334) internal successors, (2923), 3 states have internal predecessors, (2923), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:27:35,652 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:27:35,652 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, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:27:35,652 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-08-29 03:27:35,653 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting thread3Err8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2023-08-29 03:27:35,653 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:27:35,653 INFO L85 PathProgramCache]: Analyzing trace with hash 750934377, now seen corresponding path program 1 times [2023-08-29 03:27:35,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:27:35,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057065969] [2023-08-29 03:27:35,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:27:35,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:27:35,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:27:35,696 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-08-29 03:27:35,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:27:35,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057065969] [2023-08-29 03:27:35,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057065969] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:27:35,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:27:35,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 03:27:35,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390589136] [2023-08-29 03:27:35,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:27:35,697 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 03:27:35,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:27:35,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 03:27:35,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 03:27:35,704 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 968 out of 1997 [2023-08-29 03:27:35,705 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 262 places, 252 transitions, 733 flow. Second operand has 3 states, 3 states have (on average 976.3333333333334) internal successors, (2929), 3 states have internal predecessors, (2929), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:27:35,705 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:27:35,705 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 968 of 1997 [2023-08-29 03:27:35,705 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:27:42,270 INFO L130 PetriNetUnfolder]: 22088/62484 cut-off events. [2023-08-29 03:27:42,270 INFO L131 PetriNetUnfolder]: For 4160/4249 co-relation queries the response was YES. [2023-08-29 03:27:42,681 INFO L83 FinitePrefix]: Finished finitePrefix Result has 101934 conditions, 62484 events. 22088/62484 cut-off events. For 4160/4249 co-relation queries the response was YES. Maximal size of possible extension queue 1714. Compared 809427 event pairs, 4893 based on Foata normal form. 0/56844 useless extension candidates. Maximal degree in co-relation 101909. Up to 23786 conditions per place. [2023-08-29 03:27:42,844 INFO L137 encePairwiseOnDemand]: 1993/1997 looper letters, 115 selfloop transitions, 2 changer transitions 0/290 dead transitions. [2023-08-29 03:27:42,844 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 262 places, 290 transitions, 1071 flow [2023-08-29 03:27:42,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 03:27:42,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 03:27:42,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3007 transitions. [2023-08-29 03:27:42,847 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5019195459856451 [2023-08-29 03:27:42,847 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3007 transitions. [2023-08-29 03:27:42,847 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3007 transitions. [2023-08-29 03:27:42,848 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:27:42,848 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3007 transitions. [2023-08-29 03:27:42,850 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1002.3333333333334) internal successors, (3007), 3 states have internal predecessors, (3007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:27:42,853 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1997.0) internal successors, (7988), 4 states have internal predecessors, (7988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:27:42,853 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1997.0) internal successors, (7988), 4 states have internal predecessors, (7988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:27:42,853 INFO L175 Difference]: Start difference. First operand has 262 places, 252 transitions, 733 flow. Second operand 3 states and 3007 transitions. [2023-08-29 03:27:42,853 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 262 places, 290 transitions, 1071 flow [2023-08-29 03:27:42,862 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 262 places, 290 transitions, 1071 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 03:27:42,864 INFO L231 Difference]: Finished difference. Result has 263 places, 252 transitions, 743 flow [2023-08-29 03:27:42,864 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1997, PETRI_DIFFERENCE_MINUEND_FLOW=729, PETRI_DIFFERENCE_MINUEND_PLACES=260, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=250, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=248, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=743, PETRI_PLACES=263, PETRI_TRANSITIONS=252} [2023-08-29 03:27:42,865 INFO L281 CegarLoopForPetriNet]: 318 programPoint places, -55 predicate places. [2023-08-29 03:27:42,865 INFO L495 AbstractCegarLoop]: Abstraction has has 263 places, 252 transitions, 743 flow [2023-08-29 03:27:42,865 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 976.3333333333334) internal successors, (2929), 3 states have internal predecessors, (2929), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:27:42,865 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:27:42,865 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:27:42,866 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-08-29 03:27:42,866 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting thread1Err10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2023-08-29 03:27:42,866 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:27:42,866 INFO L85 PathProgramCache]: Analyzing trace with hash 1633107175, now seen corresponding path program 1 times [2023-08-29 03:27:42,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:27:42,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444164152] [2023-08-29 03:27:42,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:27:42,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:27:42,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:27:42,941 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-08-29 03:27:42,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:27:42,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444164152] [2023-08-29 03:27:42,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [444164152] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:27:42,942 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:27:42,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 03:27:42,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686845373] [2023-08-29 03:27:42,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:27:42,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 03:27:42,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:27:42,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 03:27:42,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 03:27:43,131 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 950 out of 1997 [2023-08-29 03:27:43,132 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 263 places, 252 transitions, 743 flow. Second operand has 3 states, 3 states have (on average 956.6666666666666) internal successors, (2870), 3 states have internal predecessors, (2870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:27:43,132 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:27:43,133 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 950 of 1997 [2023-08-29 03:27:43,133 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:27:50,905 INFO L130 PetriNetUnfolder]: 26141/79414 cut-off events. [2023-08-29 03:27:50,905 INFO L131 PetriNetUnfolder]: For 5355/5438 co-relation queries the response was YES. [2023-08-29 03:27:51,609 INFO L83 FinitePrefix]: Finished finitePrefix Result has 127073 conditions, 79414 events. 26141/79414 cut-off events. For 5355/5438 co-relation queries the response was YES. Maximal size of possible extension queue 1957. Compared 1083651 event pairs, 6397 based on Foata normal form. 0/72176 useless extension candidates. Maximal degree in co-relation 127047. Up to 31043 conditions per place. [2023-08-29 03:27:51,831 INFO L137 encePairwiseOnDemand]: 1993/1997 looper letters, 116 selfloop transitions, 2 changer transitions 0/287 dead transitions. [2023-08-29 03:27:51,831 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 263 places, 287 transitions, 1079 flow [2023-08-29 03:27:51,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 03:27:51,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 03:27:51,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2952 transitions. [2023-08-29 03:27:51,834 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4927391086629945 [2023-08-29 03:27:51,834 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2952 transitions. [2023-08-29 03:27:51,834 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2952 transitions. [2023-08-29 03:27:51,834 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:27:51,834 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2952 transitions. [2023-08-29 03:27:51,836 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 984.0) internal successors, (2952), 3 states have internal predecessors, (2952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:27:51,838 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1997.0) internal successors, (7988), 4 states have internal predecessors, (7988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:27:51,839 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1997.0) internal successors, (7988), 4 states have internal predecessors, (7988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:27:51,839 INFO L175 Difference]: Start difference. First operand has 263 places, 252 transitions, 743 flow. Second operand 3 states and 2952 transitions. [2023-08-29 03:27:51,839 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 263 places, 287 transitions, 1079 flow [2023-08-29 03:27:51,850 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 263 places, 287 transitions, 1079 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 03:27:51,852 INFO L231 Difference]: Finished difference. Result has 264 places, 252 transitions, 753 flow [2023-08-29 03:27:51,852 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1997, PETRI_DIFFERENCE_MINUEND_FLOW=739, PETRI_DIFFERENCE_MINUEND_PLACES=261, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=250, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=248, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=753, PETRI_PLACES=264, PETRI_TRANSITIONS=252} [2023-08-29 03:27:51,853 INFO L281 CegarLoopForPetriNet]: 318 programPoint places, -54 predicate places. [2023-08-29 03:27:51,853 INFO L495 AbstractCegarLoop]: Abstraction has has 264 places, 252 transitions, 753 flow [2023-08-29 03:27:51,853 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 956.6666666666666) internal successors, (2870), 3 states have internal predecessors, (2870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:27:51,853 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:27:51,854 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:27:51,854 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-08-29 03:27:51,854 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting thread3Err10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2023-08-29 03:27:51,854 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:27:51,854 INFO L85 PathProgramCache]: Analyzing trace with hash -327793627, now seen corresponding path program 1 times [2023-08-29 03:27:51,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:27:51,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501111946] [2023-08-29 03:27:51,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:27:51,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:27:51,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:27:51,931 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-08-29 03:27:51,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:27:51,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501111946] [2023-08-29 03:27:51,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1501111946] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:27:51,932 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:27:51,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 03:27:51,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983041907] [2023-08-29 03:27:51,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:27:51,933 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 03:27:51,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:27:51,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 03:27:51,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 03:27:52,262 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 950 out of 1997 [2023-08-29 03:27:52,263 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 264 places, 252 transitions, 753 flow. Second operand has 3 states, 3 states have (on average 958.6666666666666) internal successors, (2876), 3 states have internal predecessors, (2876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:27:52,264 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:27:52,264 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 950 of 1997 [2023-08-29 03:27:52,264 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:27:58,813 INFO L130 PetriNetUnfolder]: 21820/63198 cut-off events. [2023-08-29 03:27:58,813 INFO L131 PetriNetUnfolder]: For 4991/5098 co-relation queries the response was YES. [2023-08-29 03:27:59,242 INFO L83 FinitePrefix]: Finished finitePrefix Result has 104573 conditions, 63198 events. 21820/63198 cut-off events. For 4991/5098 co-relation queries the response was YES. Maximal size of possible extension queue 1657. Compared 824549 event pairs, 6021 based on Foata normal form. 4/57678 useless extension candidates. Maximal degree in co-relation 104546. Up to 21018 conditions per place. [2023-08-29 03:27:59,411 INFO L137 encePairwiseOnDemand]: 1993/1997 looper letters, 118 selfloop transitions, 2 changer transitions 0/292 dead transitions. [2023-08-29 03:27:59,411 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 264 places, 292 transitions, 1105 flow [2023-08-29 03:27:59,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 03:27:59,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 03:27:59,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2954 transitions. [2023-08-29 03:27:59,413 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4930729427474545 [2023-08-29 03:27:59,413 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2954 transitions. [2023-08-29 03:27:59,413 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2954 transitions. [2023-08-29 03:27:59,414 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:27:59,414 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2954 transitions. [2023-08-29 03:27:59,415 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 984.6666666666666) internal successors, (2954), 3 states have internal predecessors, (2954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:27:59,418 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1997.0) internal successors, (7988), 4 states have internal predecessors, (7988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:27:59,418 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1997.0) internal successors, (7988), 4 states have internal predecessors, (7988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:27:59,418 INFO L175 Difference]: Start difference. First operand has 264 places, 252 transitions, 753 flow. Second operand 3 states and 2954 transitions. [2023-08-29 03:27:59,418 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 264 places, 292 transitions, 1105 flow [2023-08-29 03:27:59,429 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 264 places, 292 transitions, 1105 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 03:27:59,431 INFO L231 Difference]: Finished difference. Result has 265 places, 252 transitions, 763 flow [2023-08-29 03:27:59,431 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1997, PETRI_DIFFERENCE_MINUEND_FLOW=749, PETRI_DIFFERENCE_MINUEND_PLACES=262, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=250, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=248, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=763, PETRI_PLACES=265, PETRI_TRANSITIONS=252} [2023-08-29 03:27:59,431 INFO L281 CegarLoopForPetriNet]: 318 programPoint places, -53 predicate places. [2023-08-29 03:27:59,431 INFO L495 AbstractCegarLoop]: Abstraction has has 265 places, 252 transitions, 763 flow [2023-08-29 03:27:59,432 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 958.6666666666666) internal successors, (2876), 3 states have internal predecessors, (2876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:27:59,432 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:27:59,432 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:27:59,432 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-08-29 03:27:59,432 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting thread1Err24ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2023-08-29 03:27:59,432 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:27:59,433 INFO L85 PathProgramCache]: Analyzing trace with hash 1753880610, now seen corresponding path program 1 times [2023-08-29 03:27:59,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:27:59,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049179055] [2023-08-29 03:27:59,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:27:59,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:27:59,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:27:59,498 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-08-29 03:27:59,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:27:59,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049179055] [2023-08-29 03:27:59,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2049179055] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:27:59,498 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:27:59,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-29 03:27:59,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815555918] [2023-08-29 03:27:59,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:27:59,499 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 03:27:59,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:27:59,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 03:27:59,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 03:27:59,505 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 968 out of 1997 [2023-08-29 03:27:59,506 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 265 places, 252 transitions, 763 flow. Second operand has 3 states, 3 states have (on average 974.6666666666666) internal successors, (2924), 3 states have internal predecessors, (2924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:27:59,506 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:27:59,506 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 968 of 1997 [2023-08-29 03:27:59,506 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand