./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/weaver/chl-word-subst.wvr.c --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/weaver/chl-word-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 98c397d7a260fe673f9e4655b5dca942c114f9b11115010a8eef60e068615ab1 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-31 21:36:37,640 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-31 21:36:37,642 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-31 21:36:37,672 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-31 21:36:37,674 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-31 21:36:37,676 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-31 21:36:37,677 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-31 21:36:37,679 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-31 21:36:37,681 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-31 21:36:37,684 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-31 21:36:37,685 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-31 21:36:37,686 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-31 21:36:37,687 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-31 21:36:37,688 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-31 21:36:37,689 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-31 21:36:37,693 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-31 21:36:37,694 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-31 21:36:37,695 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-31 21:36:37,696 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-31 21:36:37,717 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-31 21:36:37,718 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-31 21:36:37,719 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-31 21:36:37,720 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-31 21:36:37,721 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-31 21:36:37,726 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-31 21:36:37,726 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-31 21:36:37,726 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-31 21:36:37,728 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-31 21:36:37,728 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-31 21:36:37,729 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-31 21:36:37,729 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-31 21:36:37,733 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-31 21:36:37,734 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-31 21:36:37,735 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-31 21:36:37,736 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-31 21:36:37,736 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-31 21:36:37,736 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-31 21:36:37,737 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-31 21:36:37,737 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-31 21:36:37,737 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-31 21:36:37,738 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-31 21:36:37,739 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-31 21:36:37,763 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-31 21:36:37,764 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-31 21:36:37,764 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-31 21:36:37,765 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-31 21:36:37,765 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-31 21:36:37,765 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-31 21:36:37,766 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-31 21:36:37,766 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-31 21:36:37,766 INFO L138 SettingsManager]: * Use SBE=true [2023-08-31 21:36:37,766 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-31 21:36:37,767 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-31 21:36:37,767 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-31 21:36:37,767 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-31 21:36:37,767 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-31 21:36:37,767 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-31 21:36:37,768 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-31 21:36:37,768 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-31 21:36:37,768 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-31 21:36:37,768 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-31 21:36:37,768 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-31 21:36:37,768 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-31 21:36:37,768 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-31 21:36:37,769 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-31 21:36:37,769 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-31 21:36:37,769 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-31 21:36:37,769 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-31 21:36:37,769 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 21:36:37,769 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-31 21:36:37,769 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-31 21:36:37,770 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-31 21:36:37,770 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-31 21:36:37,770 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-31 21:36:37,770 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-31 21:36:37,770 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-31 21:36:37,770 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-31 21:36:37,771 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-31 21:36:37,771 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-31 21:36:37,771 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 98c397d7a260fe673f9e4655b5dca942c114f9b11115010a8eef60e068615ab1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-08-31 21:36:38,020 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-31 21:36:38,036 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-31 21:36:38,038 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-31 21:36:38,039 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-31 21:36:38,039 INFO L275 PluginConnector]: CDTParser initialized [2023-08-31 21:36:38,040 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-word-subst.wvr.c [2023-08-31 21:36:39,004 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-31 21:36:39,174 INFO L351 CDTParser]: Found 1 translation units. [2023-08-31 21:36:39,174 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-word-subst.wvr.c [2023-08-31 21:36:39,178 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/071da3198/246b5e026667419b973996b82c7faa77/FLAGa665afeec [2023-08-31 21:36:39,189 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/071da3198/246b5e026667419b973996b82c7faa77 [2023-08-31 21:36:39,190 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-31 21:36:39,191 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-31 21:36:39,192 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-31 21:36:39,192 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-31 21:36:39,199 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-31 21:36:39,199 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 09:36:39" (1/1) ... [2023-08-31 21:36:39,200 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fde9c9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:36:39, skipping insertion in model container [2023-08-31 21:36:39,200 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 09:36:39" (1/1) ... [2023-08-31 21:36:39,204 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-31 21:36:39,218 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-31 21:36:39,369 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-word-subst.wvr.c[3345,3358] [2023-08-31 21:36:39,379 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 21:36:39,389 INFO L203 MainTranslator]: Completed pre-run [2023-08-31 21:36:39,441 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-word-subst.wvr.c[3345,3358] [2023-08-31 21:36:39,445 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 21:36:39,458 INFO L208 MainTranslator]: Completed translation [2023-08-31 21:36:39,460 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:36:39 WrapperNode [2023-08-31 21:36:39,460 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-31 21:36:39,461 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-31 21:36:39,461 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-31 21:36:39,461 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-31 21:36:39,465 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:36:39" (1/1) ... [2023-08-31 21:36:39,485 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:36:39" (1/1) ... [2023-08-31 21:36:39,519 INFO L138 Inliner]: procedures = 25, calls = 45, calls flagged for inlining = 9, calls inlined = 13, statements flattened = 277 [2023-08-31 21:36:39,520 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-31 21:36:39,521 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-31 21:36:39,521 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-31 21:36:39,521 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-31 21:36:39,527 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:36:39" (1/1) ... [2023-08-31 21:36:39,527 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:36:39" (1/1) ... [2023-08-31 21:36:39,538 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:36:39" (1/1) ... [2023-08-31 21:36:39,539 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:36:39" (1/1) ... [2023-08-31 21:36:39,566 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:36:39" (1/1) ... [2023-08-31 21:36:39,570 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:36:39" (1/1) ... [2023-08-31 21:36:39,571 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:36:39" (1/1) ... [2023-08-31 21:36:39,593 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:36:39" (1/1) ... [2023-08-31 21:36:39,596 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-31 21:36:39,597 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-31 21:36:39,597 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-31 21:36:39,597 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-31 21:36:39,597 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:36:39" (1/1) ... [2023-08-31 21:36:39,601 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 21:36:39,611 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 21:36:39,621 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-31 21:36:39,640 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-31 21:36:39,649 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-31 21:36:39,649 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-31 21:36:39,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-31 21:36:39,650 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-31 21:36:39,650 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-31 21:36:39,650 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-31 21:36:39,650 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-31 21:36:39,650 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-31 21:36:39,651 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-08-31 21:36:39,651 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-08-31 21:36:39,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-31 21:36:39,651 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-31 21:36:39,651 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-31 21:36:39,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-31 21:36:39,651 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-31 21:36:39,652 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-31 21:36:39,753 INFO L236 CfgBuilder]: Building ICFG [2023-08-31 21:36:39,766 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-31 21:36:40,314 INFO L277 CfgBuilder]: Performing block encoding [2023-08-31 21:36:40,329 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-31 21:36:40,329 INFO L302 CfgBuilder]: Removed 6 assume(true) statements. [2023-08-31 21:36:40,332 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 09:36:40 BoogieIcfgContainer [2023-08-31 21:36:40,332 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-31 21:36:40,333 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-31 21:36:40,333 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-31 21:36:40,335 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-31 21:36:40,335 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.08 09:36:39" (1/3) ... [2023-08-31 21:36:40,336 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56b910c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 09:36:40, skipping insertion in model container [2023-08-31 21:36:40,336 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:36:39" (2/3) ... [2023-08-31 21:36:40,336 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56b910c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 09:36:40, skipping insertion in model container [2023-08-31 21:36:40,336 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 09:36:40" (3/3) ... [2023-08-31 21:36:40,337 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-word-subst.wvr.c [2023-08-31 21:36:40,342 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-31 21:36:40,349 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-31 21:36:40,349 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 80 error locations. [2023-08-31 21:36:40,349 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-31 21:36:40,482 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-08-31 21:36:40,519 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 631 places, 654 transitions, 1332 flow [2023-08-31 21:36:40,697 INFO L130 PetriNetUnfolder]: 33/651 cut-off events. [2023-08-31 21:36:40,698 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-08-31 21:36:40,709 INFO L83 FinitePrefix]: Finished finitePrefix Result has 664 conditions, 651 events. 33/651 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1747 event pairs, 0 based on Foata normal form. 0/538 useless extension candidates. Maximal degree in co-relation 472. Up to 3 conditions per place. [2023-08-31 21:36:40,709 INFO L82 GeneralOperation]: Start removeDead. Operand has 631 places, 654 transitions, 1332 flow [2023-08-31 21:36:40,719 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 610 places, 631 transitions, 1280 flow [2023-08-31 21:36:40,722 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-31 21:36:40,732 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 610 places, 631 transitions, 1280 flow [2023-08-31 21:36:40,735 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 610 places, 631 transitions, 1280 flow [2023-08-31 21:36:40,735 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 610 places, 631 transitions, 1280 flow [2023-08-31 21:36:40,822 INFO L130 PetriNetUnfolder]: 31/631 cut-off events. [2023-08-31 21:36:40,822 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-08-31 21:36:40,826 INFO L83 FinitePrefix]: Finished finitePrefix Result has 644 conditions, 631 events. 31/631 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1723 event pairs, 0 based on Foata normal form. 0/521 useless extension candidates. Maximal degree in co-relation 472. Up to 3 conditions per place. [2023-08-31 21:36:40,851 INFO L119 LiptonReduction]: Number of co-enabled transitions 89910 [2023-08-31 21:36:49,229 INFO L134 LiptonReduction]: Checked pairs total: 737885 [2023-08-31 21:36:49,229 INFO L136 LiptonReduction]: Total number of compositions: 509 [2023-08-31 21:36:49,238 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-31 21:36:49,242 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;@6ae81a74, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-31 21:36:49,242 INFO L358 AbstractCegarLoop]: Starting to check reachability of 140 error locations. [2023-08-31 21:36:49,243 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-31 21:36:49,243 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 21:36:49,243 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:36:49,244 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-31 21:36:49,244 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 136 more)] === [2023-08-31 21:36:49,247 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:36:49,247 INFO L85 PathProgramCache]: Analyzing trace with hash 2304, now seen corresponding path program 1 times [2023-08-31 21:36:49,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:36:49,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881429617] [2023-08-31 21:36:49,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:36:49,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:36:49,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:36:49,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:36:49,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:36:49,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881429617] [2023-08-31 21:36:49,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [881429617] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:36:49,313 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:36:49,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-31 21:36:49,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044241889] [2023-08-31 21:36:49,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:36:49,319 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-31 21:36:49,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:36:49,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-31 21:36:49,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-31 21:36:49,340 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 633 out of 1163 [2023-08-31 21:36:49,344 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 257 places, 268 transitions, 554 flow. Second operand has 2 states, 2 states have (on average 633.5) internal successors, (1267), 2 states have internal predecessors, (1267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:36:49,344 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:36:49,344 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 633 of 1163 [2023-08-31 21:36:49,344 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:36:53,730 INFO L130 PetriNetUnfolder]: 20226/60375 cut-off events. [2023-08-31 21:36:53,731 INFO L131 PetriNetUnfolder]: For 843/843 co-relation queries the response was YES. [2023-08-31 21:36:53,864 INFO L83 FinitePrefix]: Finished finitePrefix Result has 87422 conditions, 60375 events. 20226/60375 cut-off events. For 843/843 co-relation queries the response was YES. Maximal size of possible extension queue 1408. Compared 786984 event pairs, 13803 based on Foata normal form. 4804/52046 useless extension candidates. Maximal degree in co-relation 81860. Up to 26452 conditions per place. [2023-08-31 21:36:54,101 INFO L137 encePairwiseOnDemand]: 1131/1163 looper letters, 71 selfloop transitions, 0 changer transitions 1/236 dead transitions. [2023-08-31 21:36:54,101 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 229 places, 236 transitions, 634 flow [2023-08-31 21:36:54,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-31 21:36:54,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-31 21:36:54,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 1370 transitions. [2023-08-31 21:36:54,117 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.588993981083405 [2023-08-31 21:36:54,118 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 1370 transitions. [2023-08-31 21:36:54,118 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 1370 transitions. [2023-08-31 21:36:54,121 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:36:54,123 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 1370 transitions. [2023-08-31 21:36:54,128 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 685.0) internal successors, (1370), 2 states have internal predecessors, (1370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:36:54,135 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 1163.0) internal successors, (3489), 3 states have internal predecessors, (3489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:36:54,136 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 1163.0) internal successors, (3489), 3 states have internal predecessors, (3489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:36:54,137 INFO L175 Difference]: Start difference. First operand has 257 places, 268 transitions, 554 flow. Second operand 2 states and 1370 transitions. [2023-08-31 21:36:54,138 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 229 places, 236 transitions, 634 flow [2023-08-31 21:36:54,147 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 223 places, 236 transitions, 622 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-08-31 21:36:54,151 INFO L231 Difference]: Finished difference. Result has 223 places, 235 transitions, 475 flow [2023-08-31 21:36:54,152 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1163, PETRI_DIFFERENCE_MINUEND_FLOW=478, PETRI_DIFFERENCE_MINUEND_PLACES=222, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=236, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=236, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=475, PETRI_PLACES=223, PETRI_TRANSITIONS=235} [2023-08-31 21:36:54,156 INFO L281 CegarLoopForPetriNet]: 257 programPoint places, -34 predicate places. [2023-08-31 21:36:54,156 INFO L495 AbstractCegarLoop]: Abstraction has has 223 places, 235 transitions, 475 flow [2023-08-31 21:36:54,157 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 633.5) internal successors, (1267), 2 states have internal predecessors, (1267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:36:54,157 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:36:54,158 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:36:54,159 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-31 21:36:54,160 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 136 more)] === [2023-08-31 21:36:54,166 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:36:54,166 INFO L85 PathProgramCache]: Analyzing trace with hash 1484336008, now seen corresponding path program 1 times [2023-08-31 21:36:54,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:36:54,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111247984] [2023-08-31 21:36:54,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:36:54,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:36:54,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:36:54,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:36:54,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:36:54,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111247984] [2023-08-31 21:36:54,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1111247984] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:36:54,330 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:36:54,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 21:36:54,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292348610] [2023-08-31 21:36:54,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:36:54,331 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 21:36:54,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:36:54,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 21:36:54,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 21:36:54,347 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 620 out of 1163 [2023-08-31 21:36:54,349 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 223 places, 235 transitions, 475 flow. Second operand has 3 states, 3 states have (on average 622.3333333333334) internal successors, (1867), 3 states have internal predecessors, (1867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:36:54,349 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:36:54,349 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 620 of 1163 [2023-08-31 21:36:54,349 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:36:58,718 INFO L130 PetriNetUnfolder]: 27658/75911 cut-off events. [2023-08-31 21:36:58,719 INFO L131 PetriNetUnfolder]: For 160/160 co-relation queries the response was YES. [2023-08-31 21:36:58,861 INFO L83 FinitePrefix]: Finished finitePrefix Result has 112566 conditions, 75911 events. 27658/75911 cut-off events. For 160/160 co-relation queries the response was YES. Maximal size of possible extension queue 1715. Compared 977290 event pairs, 7125 based on Foata normal form. 0/61677 useless extension candidates. Maximal degree in co-relation 112563. Up to 36328 conditions per place. [2023-08-31 21:36:59,145 INFO L137 encePairwiseOnDemand]: 1157/1163 looper letters, 101 selfloop transitions, 2 changer transitions 0/258 dead transitions. [2023-08-31 21:36:59,146 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 220 places, 258 transitions, 729 flow [2023-08-31 21:36:59,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 21:36:59,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 21:36:59,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1967 transitions. [2023-08-31 21:36:59,150 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5637718543995414 [2023-08-31 21:36:59,150 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1967 transitions. [2023-08-31 21:36:59,150 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1967 transitions. [2023-08-31 21:36:59,151 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:36:59,151 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1967 transitions. [2023-08-31 21:36:59,154 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 655.6666666666666) internal successors, (1967), 3 states have internal predecessors, (1967), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:36:59,159 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1163.0) internal successors, (4652), 4 states have internal predecessors, (4652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:36:59,160 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1163.0) internal successors, (4652), 4 states have internal predecessors, (4652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:36:59,161 INFO L175 Difference]: Start difference. First operand has 223 places, 235 transitions, 475 flow. Second operand 3 states and 1967 transitions. [2023-08-31 21:36:59,161 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 220 places, 258 transitions, 729 flow [2023-08-31 21:36:59,163 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 220 places, 258 transitions, 729 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 21:36:59,167 INFO L231 Difference]: Finished difference. Result has 221 places, 233 transitions, 481 flow [2023-08-31 21:36:59,167 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1163, PETRI_DIFFERENCE_MINUEND_FLOW=467, PETRI_DIFFERENCE_MINUEND_PLACES=218, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=231, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=229, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=481, PETRI_PLACES=221, PETRI_TRANSITIONS=233} [2023-08-31 21:36:59,168 INFO L281 CegarLoopForPetriNet]: 257 programPoint places, -36 predicate places. [2023-08-31 21:36:59,168 INFO L495 AbstractCegarLoop]: Abstraction has has 221 places, 233 transitions, 481 flow [2023-08-31 21:36:59,169 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 622.3333333333334) internal successors, (1867), 3 states have internal predecessors, (1867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:36:59,169 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:36:59,170 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:36:59,170 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-31 21:36:59,170 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 136 more)] === [2023-08-31 21:36:59,172 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:36:59,172 INFO L85 PathProgramCache]: Analyzing trace with hash 517808650, now seen corresponding path program 1 times [2023-08-31 21:36:59,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:36:59,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087659587] [2023-08-31 21:36:59,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:36:59,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:36:59,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:36:59,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:36:59,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:36:59,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087659587] [2023-08-31 21:36:59,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1087659587] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:36:59,237 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:36:59,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 21:36:59,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823279919] [2023-08-31 21:36:59,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:36:59,238 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 21:36:59,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:36:59,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 21:36:59,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 21:36:59,251 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 620 out of 1163 [2023-08-31 21:36:59,252 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 221 places, 233 transitions, 481 flow. Second operand has 3 states, 3 states have (on average 622.6666666666666) internal successors, (1868), 3 states have internal predecessors, (1868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:36:59,253 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:36:59,253 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 620 of 1163 [2023-08-31 21:36:59,253 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:37:02,816 INFO L130 PetriNetUnfolder]: 26896/62752 cut-off events. [2023-08-31 21:37:02,816 INFO L131 PetriNetUnfolder]: For 1297/1297 co-relation queries the response was YES. [2023-08-31 21:37:02,930 INFO L83 FinitePrefix]: Finished finitePrefix Result has 99539 conditions, 62752 events. 26896/62752 cut-off events. For 1297/1297 co-relation queries the response was YES. Maximal size of possible extension queue 1497. Compared 720843 event pairs, 6299 based on Foata normal form. 0/49071 useless extension candidates. Maximal degree in co-relation 99535. Up to 35060 conditions per place. [2023-08-31 21:37:03,143 INFO L137 encePairwiseOnDemand]: 1157/1163 looper letters, 103 selfloop transitions, 2 changer transitions 0/256 dead transitions. [2023-08-31 21:37:03,143 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 219 places, 256 transitions, 749 flow [2023-08-31 21:37:03,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 21:37:03,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 21:37:03,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1965 transitions. [2023-08-31 21:37:03,147 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5631986242476354 [2023-08-31 21:37:03,147 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1965 transitions. [2023-08-31 21:37:03,147 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1965 transitions. [2023-08-31 21:37:03,148 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:37:03,148 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1965 transitions. [2023-08-31 21:37:03,151 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 655.0) internal successors, (1965), 3 states have internal predecessors, (1965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:03,155 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1163.0) internal successors, (4652), 4 states have internal predecessors, (4652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:03,157 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1163.0) internal successors, (4652), 4 states have internal predecessors, (4652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:03,157 INFO L175 Difference]: Start difference. First operand has 221 places, 233 transitions, 481 flow. Second operand 3 states and 1965 transitions. [2023-08-31 21:37:03,157 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 219 places, 256 transitions, 749 flow [2023-08-31 21:37:03,158 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 219 places, 256 transitions, 749 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 21:37:03,162 INFO L231 Difference]: Finished difference. Result has 220 places, 231 transitions, 487 flow [2023-08-31 21:37:03,162 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1163, PETRI_DIFFERENCE_MINUEND_FLOW=473, PETRI_DIFFERENCE_MINUEND_PLACES=217, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=229, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=227, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=487, PETRI_PLACES=220, PETRI_TRANSITIONS=231} [2023-08-31 21:37:03,163 INFO L281 CegarLoopForPetriNet]: 257 programPoint places, -37 predicate places. [2023-08-31 21:37:03,166 INFO L495 AbstractCegarLoop]: Abstraction has has 220 places, 231 transitions, 487 flow [2023-08-31 21:37:03,167 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 622.6666666666666) internal successors, (1868), 3 states have internal predecessors, (1868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:03,167 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:37:03,167 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:37:03,167 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-31 21:37:03,167 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 136 more)] === [2023-08-31 21:37:03,168 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:37:03,168 INFO L85 PathProgramCache]: Analyzing trace with hash 609006630, now seen corresponding path program 1 times [2023-08-31 21:37:03,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:37:03,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133027002] [2023-08-31 21:37:03,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:37:03,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:37:03,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:37:03,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:37:03,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:37:03,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133027002] [2023-08-31 21:37:03,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1133027002] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:37:03,223 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:37:03,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 21:37:03,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884007117] [2023-08-31 21:37:03,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:37:03,224 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 21:37:03,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:37:03,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 21:37:03,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 21:37:03,243 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 620 out of 1163 [2023-08-31 21:37:03,245 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 220 places, 231 transitions, 487 flow. Second operand has 3 states, 3 states have (on average 623.3333333333334) internal successors, (1870), 3 states have internal predecessors, (1870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:03,247 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:37:03,247 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 620 of 1163 [2023-08-31 21:37:03,247 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:37:06,966 INFO L130 PetriNetUnfolder]: 27949/68598 cut-off events. [2023-08-31 21:37:06,966 INFO L131 PetriNetUnfolder]: For 1927/1927 co-relation queries the response was YES. [2023-08-31 21:37:07,142 INFO L83 FinitePrefix]: Finished finitePrefix Result has 107533 conditions, 68598 events. 27949/68598 cut-off events. For 1927/1927 co-relation queries the response was YES. Maximal size of possible extension queue 1527. Compared 815771 event pairs, 6961 based on Foata normal form. 0/53979 useless extension candidates. Maximal degree in co-relation 107528. Up to 36393 conditions per place. [2023-08-31 21:37:07,514 INFO L137 encePairwiseOnDemand]: 1157/1163 looper letters, 106 selfloop transitions, 2 changer transitions 0/256 dead transitions. [2023-08-31 21:37:07,514 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 218 places, 256 transitions, 770 flow [2023-08-31 21:37:07,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 21:37:07,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 21:37:07,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1966 transitions. [2023-08-31 21:37:07,518 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5634852393235884 [2023-08-31 21:37:07,518 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1966 transitions. [2023-08-31 21:37:07,518 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1966 transitions. [2023-08-31 21:37:07,519 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:37:07,519 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1966 transitions. [2023-08-31 21:37:07,522 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 655.3333333333334) internal successors, (1966), 3 states have internal predecessors, (1966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:07,526 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1163.0) internal successors, (4652), 4 states have internal predecessors, (4652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:07,527 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1163.0) internal successors, (4652), 4 states have internal predecessors, (4652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:07,527 INFO L175 Difference]: Start difference. First operand has 220 places, 231 transitions, 487 flow. Second operand 3 states and 1966 transitions. [2023-08-31 21:37:07,527 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 218 places, 256 transitions, 770 flow [2023-08-31 21:37:07,529 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 218 places, 256 transitions, 770 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 21:37:07,531 INFO L231 Difference]: Finished difference. Result has 219 places, 229 transitions, 493 flow [2023-08-31 21:37:07,531 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1163, PETRI_DIFFERENCE_MINUEND_FLOW=479, PETRI_DIFFERENCE_MINUEND_PLACES=216, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=227, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=225, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=493, PETRI_PLACES=219, PETRI_TRANSITIONS=229} [2023-08-31 21:37:07,532 INFO L281 CegarLoopForPetriNet]: 257 programPoint places, -38 predicate places. [2023-08-31 21:37:07,533 INFO L495 AbstractCegarLoop]: Abstraction has has 219 places, 229 transitions, 493 flow [2023-08-31 21:37:07,533 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 623.3333333333334) internal successors, (1870), 3 states have internal predecessors, (1870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:07,534 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:37:07,534 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:37:07,534 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-31 21:37:07,534 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 136 more)] === [2023-08-31 21:37:07,534 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:37:07,534 INFO L85 PathProgramCache]: Analyzing trace with hash -601497461, now seen corresponding path program 1 times [2023-08-31 21:37:07,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:37:07,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481251941] [2023-08-31 21:37:07,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:37:07,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:37:07,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:37:07,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:37:07,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:37:07,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [481251941] [2023-08-31 21:37:07,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [481251941] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:37:07,585 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:37:07,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 21:37:07,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549573469] [2023-08-31 21:37:07,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:37:07,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 21:37:07,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:37:07,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 21:37:07,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 21:37:07,598 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 617 out of 1163 [2023-08-31 21:37:07,600 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 219 places, 229 transitions, 493 flow. Second operand has 3 states, 3 states have (on average 620.0) internal successors, (1860), 3 states have internal predecessors, (1860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:07,600 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:37:07,600 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 617 of 1163 [2023-08-31 21:37:07,600 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:37:12,077 INFO L130 PetriNetUnfolder]: 27994/78343 cut-off events. [2023-08-31 21:37:12,077 INFO L131 PetriNetUnfolder]: For 1857/1857 co-relation queries the response was YES. [2023-08-31 21:37:12,284 INFO L83 FinitePrefix]: Finished finitePrefix Result has 117602 conditions, 78343 events. 27994/78343 cut-off events. For 1857/1857 co-relation queries the response was YES. Maximal size of possible extension queue 1825. Compared 1021150 event pairs, 19172 based on Foata normal form. 0/62831 useless extension candidates. Maximal degree in co-relation 117596. Up to 37091 conditions per place. [2023-08-31 21:37:12,512 INFO L137 encePairwiseOnDemand]: 1158/1163 looper letters, 77 selfloop transitions, 1 changer transitions 0/225 dead transitions. [2023-08-31 21:37:12,512 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 217 places, 225 transitions, 641 flow [2023-08-31 21:37:12,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 21:37:12,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 21:37:12,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1930 transitions. [2023-08-31 21:37:12,515 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5531670965892806 [2023-08-31 21:37:12,515 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1930 transitions. [2023-08-31 21:37:12,516 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1930 transitions. [2023-08-31 21:37:12,516 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:37:12,516 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1930 transitions. [2023-08-31 21:37:12,519 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 643.3333333333334) internal successors, (1930), 3 states have internal predecessors, (1930), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:12,523 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1163.0) internal successors, (4652), 4 states have internal predecessors, (4652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:12,524 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1163.0) internal successors, (4652), 4 states have internal predecessors, (4652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:12,524 INFO L175 Difference]: Start difference. First operand has 219 places, 229 transitions, 493 flow. Second operand 3 states and 1930 transitions. [2023-08-31 21:37:12,524 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 217 places, 225 transitions, 641 flow [2023-08-31 21:37:12,526 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 217 places, 225 transitions, 641 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 21:37:12,528 INFO L231 Difference]: Finished difference. Result has 217 places, 225 transitions, 487 flow [2023-08-31 21:37:12,528 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1163, PETRI_DIFFERENCE_MINUEND_FLOW=485, PETRI_DIFFERENCE_MINUEND_PLACES=215, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=225, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=224, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=487, PETRI_PLACES=217, PETRI_TRANSITIONS=225} [2023-08-31 21:37:12,528 INFO L281 CegarLoopForPetriNet]: 257 programPoint places, -40 predicate places. [2023-08-31 21:37:12,529 INFO L495 AbstractCegarLoop]: Abstraction has has 217 places, 225 transitions, 487 flow [2023-08-31 21:37:12,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 620.0) internal successors, (1860), 3 states have internal predecessors, (1860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:12,529 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:37:12,529 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:37:12,530 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-31 21:37:12,530 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 136 more)] === [2023-08-31 21:37:12,530 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:37:12,530 INFO L85 PathProgramCache]: Analyzing trace with hash 1782207376, now seen corresponding path program 1 times [2023-08-31 21:37:12,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:37:12,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319673588] [2023-08-31 21:37:12,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:37:12,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:37:12,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:37:12,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:37:12,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:37:12,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319673588] [2023-08-31 21:37:12,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [319673588] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:37:12,553 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:37:12,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-31 21:37:12,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105363351] [2023-08-31 21:37:12,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:37:12,554 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 21:37:12,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:37:12,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 21:37:12,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 21:37:12,560 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 625 out of 1163 [2023-08-31 21:37:12,561 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 217 places, 225 transitions, 487 flow. Second operand has 3 states, 3 states have (on average 628.0) internal successors, (1884), 3 states have internal predecessors, (1884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:12,561 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:37:12,562 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 625 of 1163 [2023-08-31 21:37:12,562 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:37:16,759 INFO L130 PetriNetUnfolder]: 23328/67825 cut-off events. [2023-08-31 21:37:16,759 INFO L131 PetriNetUnfolder]: For 1601/1601 co-relation queries the response was YES. [2023-08-31 21:37:16,942 INFO L83 FinitePrefix]: Finished finitePrefix Result has 100614 conditions, 67825 events. 23328/67825 cut-off events. For 1601/1601 co-relation queries the response was YES. Maximal size of possible extension queue 1521. Compared 880022 event pairs, 14482 based on Foata normal form. 0/53897 useless extension candidates. Maximal degree in co-relation 100607. Up to 28946 conditions per place. [2023-08-31 21:37:17,146 INFO L137 encePairwiseOnDemand]: 1160/1163 looper letters, 115 selfloop transitions, 2 changer transitions 0/268 dead transitions. [2023-08-31 21:37:17,146 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 219 places, 268 transitions, 813 flow [2023-08-31 21:37:17,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 21:37:17,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 21:37:17,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1990 transitions. [2023-08-31 21:37:17,150 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5703640011464604 [2023-08-31 21:37:17,150 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1990 transitions. [2023-08-31 21:37:17,150 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1990 transitions. [2023-08-31 21:37:17,151 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:37:17,151 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1990 transitions. [2023-08-31 21:37:17,153 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 663.3333333333334) internal successors, (1990), 3 states have internal predecessors, (1990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:17,156 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1163.0) internal successors, (4652), 4 states have internal predecessors, (4652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:17,157 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1163.0) internal successors, (4652), 4 states have internal predecessors, (4652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:17,157 INFO L175 Difference]: Start difference. First operand has 217 places, 225 transitions, 487 flow. Second operand 3 states and 1990 transitions. [2023-08-31 21:37:17,157 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 219 places, 268 transitions, 813 flow [2023-08-31 21:37:17,161 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 218 places, 268 transitions, 812 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-31 21:37:17,163 INFO L231 Difference]: Finished difference. Result has 219 places, 226 transitions, 498 flow [2023-08-31 21:37:17,163 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1163, PETRI_DIFFERENCE_MINUEND_FLOW=486, PETRI_DIFFERENCE_MINUEND_PLACES=216, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=225, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=223, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=498, PETRI_PLACES=219, PETRI_TRANSITIONS=226} [2023-08-31 21:37:17,164 INFO L281 CegarLoopForPetriNet]: 257 programPoint places, -38 predicate places. [2023-08-31 21:37:17,164 INFO L495 AbstractCegarLoop]: Abstraction has has 219 places, 226 transitions, 498 flow [2023-08-31 21:37:17,165 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 628.0) internal successors, (1884), 3 states have internal predecessors, (1884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:17,165 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:37:17,165 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:37:17,165 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-31 21:37:17,165 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 136 more)] === [2023-08-31 21:37:17,165 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:37:17,165 INFO L85 PathProgramCache]: Analyzing trace with hash 1782007167, now seen corresponding path program 1 times [2023-08-31 21:37:17,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:37:17,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494529794] [2023-08-31 21:37:17,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:37:17,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:37:17,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:37:17,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:37:17,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:37:17,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494529794] [2023-08-31 21:37:17,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [494529794] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:37:17,187 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:37:17,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 21:37:17,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318998285] [2023-08-31 21:37:17,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:37:17,188 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 21:37:17,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:37:17,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 21:37:17,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 21:37:17,202 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 617 out of 1163 [2023-08-31 21:37:17,203 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 219 places, 226 transitions, 498 flow. Second operand has 3 states, 3 states have (on average 620.3333333333334) internal successors, (1861), 3 states have internal predecessors, (1861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:17,203 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:37:17,203 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 617 of 1163 [2023-08-31 21:37:17,203 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:37:22,039 INFO L130 PetriNetUnfolder]: 27442/76600 cut-off events. [2023-08-31 21:37:22,039 INFO L131 PetriNetUnfolder]: For 4361/4361 co-relation queries the response was YES. [2023-08-31 21:37:22,267 INFO L83 FinitePrefix]: Finished finitePrefix Result has 117778 conditions, 76600 events. 27442/76600 cut-off events. For 4361/4361 co-relation queries the response was YES. Maximal size of possible extension queue 1796. Compared 991990 event pairs, 18690 based on Foata normal form. 0/61981 useless extension candidates. Maximal degree in co-relation 117770. Up to 36343 conditions per place. [2023-08-31 21:37:22,505 INFO L137 encePairwiseOnDemand]: 1158/1163 looper letters, 77 selfloop transitions, 1 changer transitions 0/222 dead transitions. [2023-08-31 21:37:22,506 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 217 places, 222 transitions, 646 flow [2023-08-31 21:37:22,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 21:37:22,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 21:37:22,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1929 transitions. [2023-08-31 21:37:22,509 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5528804815133276 [2023-08-31 21:37:22,509 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1929 transitions. [2023-08-31 21:37:22,509 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1929 transitions. [2023-08-31 21:37:22,510 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:37:22,510 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1929 transitions. [2023-08-31 21:37:22,513 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 643.0) internal successors, (1929), 3 states have internal predecessors, (1929), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:22,516 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1163.0) internal successors, (4652), 4 states have internal predecessors, (4652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:22,517 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1163.0) internal successors, (4652), 4 states have internal predecessors, (4652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:22,517 INFO L175 Difference]: Start difference. First operand has 219 places, 226 transitions, 498 flow. Second operand 3 states and 1929 transitions. [2023-08-31 21:37:22,517 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 217 places, 222 transitions, 646 flow [2023-08-31 21:37:22,522 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 216 places, 222 transitions, 644 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-31 21:37:22,523 INFO L231 Difference]: Finished difference. Result has 216 places, 222 transitions, 490 flow [2023-08-31 21:37:22,524 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1163, PETRI_DIFFERENCE_MINUEND_FLOW=488, PETRI_DIFFERENCE_MINUEND_PLACES=214, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=222, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=221, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=490, PETRI_PLACES=216, PETRI_TRANSITIONS=222} [2023-08-31 21:37:22,524 INFO L281 CegarLoopForPetriNet]: 257 programPoint places, -41 predicate places. [2023-08-31 21:37:22,524 INFO L495 AbstractCegarLoop]: Abstraction has has 216 places, 222 transitions, 490 flow [2023-08-31 21:37:22,525 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 620.3333333333334) internal successors, (1861), 3 states have internal predecessors, (1861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:22,525 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:37:22,525 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:37:22,525 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-31 21:37:22,526 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 136 more)] === [2023-08-31 21:37:22,526 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:37:22,526 INFO L85 PathProgramCache]: Analyzing trace with hash -470211424, now seen corresponding path program 1 times [2023-08-31 21:37:22,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:37:22,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318520582] [2023-08-31 21:37:22,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:37:22,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:37:22,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:37:22,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:37:22,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:37:22,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318520582] [2023-08-31 21:37:22,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318520582] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:37:22,762 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:37:22,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 21:37:22,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429802283] [2023-08-31 21:37:22,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:37:22,762 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 21:37:22,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:37:22,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 21:37:22,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 21:37:23,329 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 612 out of 1163 [2023-08-31 21:37:23,331 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 216 places, 222 transitions, 490 flow. Second operand has 6 states, 6 states have (on average 614.3333333333334) internal successors, (3686), 6 states have internal predecessors, (3686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:23,331 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:37:23,331 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 612 of 1163 [2023-08-31 21:37:23,331 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:37:30,487 INFO L130 PetriNetUnfolder]: 72288/120485 cut-off events. [2023-08-31 21:37:30,487 INFO L131 PetriNetUnfolder]: For 8011/8011 co-relation queries the response was YES. [2023-08-31 21:37:30,866 INFO L83 FinitePrefix]: Finished finitePrefix Result has 223710 conditions, 120485 events. 72288/120485 cut-off events. For 8011/8011 co-relation queries the response was YES. Maximal size of possible extension queue 3014. Compared 1130370 event pairs, 6253 based on Foata normal form. 0/95422 useless extension candidates. Maximal degree in co-relation 223702. Up to 32740 conditions per place. [2023-08-31 21:37:31,246 INFO L137 encePairwiseOnDemand]: 1158/1163 looper letters, 307 selfloop transitions, 4 changer transitions 0/453 dead transitions. [2023-08-31 21:37:31,246 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 220 places, 453 transitions, 1666 flow [2023-08-31 21:37:31,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 21:37:31,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 21:37:31,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3964 transitions. [2023-08-31 21:37:31,251 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5680710805388364 [2023-08-31 21:37:31,251 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3964 transitions. [2023-08-31 21:37:31,251 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3964 transitions. [2023-08-31 21:37:31,252 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:37:31,252 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3964 transitions. [2023-08-31 21:37:31,256 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 660.6666666666666) internal successors, (3964), 6 states have internal predecessors, (3964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:31,262 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1163.0) internal successors, (8141), 7 states have internal predecessors, (8141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:31,263 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1163.0) internal successors, (8141), 7 states have internal predecessors, (8141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:31,263 INFO L175 Difference]: Start difference. First operand has 216 places, 222 transitions, 490 flow. Second operand 6 states and 3964 transitions. [2023-08-31 21:37:31,263 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 220 places, 453 transitions, 1666 flow [2023-08-31 21:37:31,277 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 219 places, 453 transitions, 1665 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-31 21:37:31,279 INFO L231 Difference]: Finished difference. Result has 219 places, 221 transitions, 495 flow [2023-08-31 21:37:31,280 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1163, PETRI_DIFFERENCE_MINUEND_FLOW=487, PETRI_DIFFERENCE_MINUEND_PLACES=214, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=221, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=217, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=495, PETRI_PLACES=219, PETRI_TRANSITIONS=221} [2023-08-31 21:37:31,280 INFO L281 CegarLoopForPetriNet]: 257 programPoint places, -38 predicate places. [2023-08-31 21:37:31,280 INFO L495 AbstractCegarLoop]: Abstraction has has 219 places, 221 transitions, 495 flow [2023-08-31 21:37:31,281 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 614.3333333333334) internal successors, (3686), 6 states have internal predecessors, (3686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:31,281 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:37:31,281 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:37:31,282 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-31 21:37:31,282 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 136 more)] === [2023-08-31 21:37:31,282 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:37:31,282 INFO L85 PathProgramCache]: Analyzing trace with hash 684706313, now seen corresponding path program 1 times [2023-08-31 21:37:31,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:37:31,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670028888] [2023-08-31 21:37:31,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:37:31,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:37:31,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:37:31,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:37:31,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:37:31,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670028888] [2023-08-31 21:37:31,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1670028888] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:37:31,304 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:37:31,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 21:37:31,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725207216] [2023-08-31 21:37:31,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:37:31,304 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 21:37:31,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:37:31,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 21:37:31,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 21:37:31,318 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 617 out of 1163 [2023-08-31 21:37:31,319 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 219 places, 221 transitions, 495 flow. Second operand has 3 states, 3 states have (on average 621.0) internal successors, (1863), 3 states have internal predecessors, (1863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:31,319 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:37:31,319 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 617 of 1163 [2023-08-31 21:37:31,319 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:37:35,851 INFO L130 PetriNetUnfolder]: 27625/76651 cut-off events. [2023-08-31 21:37:35,851 INFO L131 PetriNetUnfolder]: For 7368/7368 co-relation queries the response was YES. [2023-08-31 21:37:36,279 INFO L83 FinitePrefix]: Finished finitePrefix Result has 121874 conditions, 76651 events. 27625/76651 cut-off events. For 7368/7368 co-relation queries the response was YES. Maximal size of possible extension queue 1766. Compared 990217 event pairs, 18815 based on Foata normal form. 0/61972 useless extension candidates. Maximal degree in co-relation 121866. Up to 36598 conditions per place. [2023-08-31 21:37:36,495 INFO L137 encePairwiseOnDemand]: 1158/1163 looper letters, 77 selfloop transitions, 1 changer transitions 0/217 dead transitions. [2023-08-31 21:37:36,495 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 217 places, 217 transitions, 643 flow [2023-08-31 21:37:36,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 21:37:36,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 21:37:36,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1929 transitions. [2023-08-31 21:37:36,498 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5528804815133276 [2023-08-31 21:37:36,498 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1929 transitions. [2023-08-31 21:37:36,498 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1929 transitions. [2023-08-31 21:37:36,499 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:37:36,499 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1929 transitions. [2023-08-31 21:37:36,501 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 643.0) internal successors, (1929), 3 states have internal predecessors, (1929), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:36,504 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1163.0) internal successors, (4652), 4 states have internal predecessors, (4652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:36,505 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1163.0) internal successors, (4652), 4 states have internal predecessors, (4652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:36,505 INFO L175 Difference]: Start difference. First operand has 219 places, 221 transitions, 495 flow. Second operand 3 states and 1929 transitions. [2023-08-31 21:37:36,505 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 217 places, 217 transitions, 643 flow [2023-08-31 21:37:36,548 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 213 places, 217 transitions, 636 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-31 21:37:36,550 INFO L231 Difference]: Finished difference. Result has 213 places, 217 transitions, 482 flow [2023-08-31 21:37:36,550 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1163, PETRI_DIFFERENCE_MINUEND_FLOW=480, PETRI_DIFFERENCE_MINUEND_PLACES=211, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=217, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=216, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=482, PETRI_PLACES=213, PETRI_TRANSITIONS=217} [2023-08-31 21:37:36,551 INFO L281 CegarLoopForPetriNet]: 257 programPoint places, -44 predicate places. [2023-08-31 21:37:36,551 INFO L495 AbstractCegarLoop]: Abstraction has has 213 places, 217 transitions, 482 flow [2023-08-31 21:37:36,551 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 621.0) internal successors, (1863), 3 states have internal predecessors, (1863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:36,551 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:37:36,551 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:37:36,552 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-31 21:37:36,552 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread2Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 136 more)] === [2023-08-31 21:37:36,552 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:37:36,552 INFO L85 PathProgramCache]: Analyzing trace with hash 684959501, now seen corresponding path program 1 times [2023-08-31 21:37:36,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:37:36,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742758737] [2023-08-31 21:37:36,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:37:36,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:37:36,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:37:36,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:37:36,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:37:36,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742758737] [2023-08-31 21:37:36,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1742758737] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:37:36,575 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:37:36,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-31 21:37:36,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479431246] [2023-08-31 21:37:36,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:37:36,575 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 21:37:36,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:37:36,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 21:37:36,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 21:37:36,582 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 625 out of 1163 [2023-08-31 21:37:36,583 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 213 places, 217 transitions, 482 flow. Second operand has 3 states, 3 states have (on average 628.6666666666666) internal successors, (1886), 3 states have internal predecessors, (1886), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:36,583 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:37:36,583 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 625 of 1163 [2023-08-31 21:37:36,584 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:37:40,930 INFO L130 PetriNetUnfolder]: 24879/70843 cut-off events. [2023-08-31 21:37:40,931 INFO L131 PetriNetUnfolder]: For 3075/3075 co-relation queries the response was YES. [2023-08-31 21:37:41,147 INFO L83 FinitePrefix]: Finished finitePrefix Result has 107881 conditions, 70843 events. 24879/70843 cut-off events. For 3075/3075 co-relation queries the response was YES. Maximal size of possible extension queue 1549. Compared 906321 event pairs, 15558 based on Foata normal form. 0/57185 useless extension candidates. Maximal degree in co-relation 107873. Up to 30804 conditions per place. [2023-08-31 21:37:41,339 INFO L137 encePairwiseOnDemand]: 1160/1163 looper letters, 118 selfloop transitions, 2 changer transitions 0/262 dead transitions. [2023-08-31 21:37:41,339 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 215 places, 262 transitions, 829 flow [2023-08-31 21:37:41,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 21:37:41,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 21:37:41,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1990 transitions. [2023-08-31 21:37:41,342 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5703640011464604 [2023-08-31 21:37:41,342 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1990 transitions. [2023-08-31 21:37:41,342 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1990 transitions. [2023-08-31 21:37:41,343 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:37:41,343 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1990 transitions. [2023-08-31 21:37:41,345 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 663.3333333333334) internal successors, (1990), 3 states have internal predecessors, (1990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:41,348 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1163.0) internal successors, (4652), 4 states have internal predecessors, (4652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:41,349 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1163.0) internal successors, (4652), 4 states have internal predecessors, (4652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:41,349 INFO L175 Difference]: Start difference. First operand has 213 places, 217 transitions, 482 flow. Second operand 3 states and 1990 transitions. [2023-08-31 21:37:41,349 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 215 places, 262 transitions, 829 flow [2023-08-31 21:37:41,355 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 214 places, 262 transitions, 828 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-31 21:37:41,357 INFO L231 Difference]: Finished difference. Result has 215 places, 218 transitions, 493 flow [2023-08-31 21:37:41,357 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1163, PETRI_DIFFERENCE_MINUEND_FLOW=481, PETRI_DIFFERENCE_MINUEND_PLACES=212, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=217, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=215, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=493, PETRI_PLACES=215, PETRI_TRANSITIONS=218} [2023-08-31 21:37:41,358 INFO L281 CegarLoopForPetriNet]: 257 programPoint places, -42 predicate places. [2023-08-31 21:37:41,358 INFO L495 AbstractCegarLoop]: Abstraction has has 215 places, 218 transitions, 493 flow [2023-08-31 21:37:41,358 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 628.6666666666666) internal successors, (1886), 3 states have internal predecessors, (1886), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:41,359 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:37:41,359 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:37:41,359 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-31 21:37:41,359 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 136 more)] === [2023-08-31 21:37:41,359 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:37:41,359 INFO L85 PathProgramCache]: Analyzing trace with hash -1182550316, now seen corresponding path program 1 times [2023-08-31 21:37:41,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:37:41,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448875027] [2023-08-31 21:37:41,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:37:41,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:37:41,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:37:41,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:37:41,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:37:41,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448875027] [2023-08-31 21:37:41,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448875027] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:37:41,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:37:41,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 21:37:41,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34029157] [2023-08-31 21:37:41,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:37:41,382 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 21:37:41,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:37:41,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 21:37:41,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 21:37:41,394 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 620 out of 1163 [2023-08-31 21:37:41,395 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 215 places, 218 transitions, 493 flow. Second operand has 3 states, 3 states have (on average 624.0) internal successors, (1872), 3 states have internal predecessors, (1872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:41,395 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:37:41,395 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 620 of 1163 [2023-08-31 21:37:41,395 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:37:47,982 INFO L130 PetriNetUnfolder]: 45607/107526 cut-off events. [2023-08-31 21:37:47,982 INFO L131 PetriNetUnfolder]: For 9553/9553 co-relation queries the response was YES. [2023-08-31 21:37:48,400 INFO L83 FinitePrefix]: Finished finitePrefix Result has 180641 conditions, 107526 events. 45607/107526 cut-off events. For 9553/9553 co-relation queries the response was YES. Maximal size of possible extension queue 2517. Compared 1312524 event pairs, 11128 based on Foata normal form. 0/90540 useless extension candidates. Maximal degree in co-relation 180632. Up to 40417 conditions per place. [2023-08-31 21:37:48,685 INFO L137 encePairwiseOnDemand]: 1157/1163 looper letters, 136 selfloop transitions, 2 changer transitions 0/272 dead transitions. [2023-08-31 21:37:48,685 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 213 places, 272 transitions, 908 flow [2023-08-31 21:37:48,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 21:37:48,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 21:37:48,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1994 transitions. [2023-08-31 21:37:48,688 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5715104614502723 [2023-08-31 21:37:48,688 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1994 transitions. [2023-08-31 21:37:48,689 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1994 transitions. [2023-08-31 21:37:48,689 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:37:48,689 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1994 transitions. [2023-08-31 21:37:48,691 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 664.6666666666666) internal successors, (1994), 3 states have internal predecessors, (1994), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:48,694 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1163.0) internal successors, (4652), 4 states have internal predecessors, (4652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:48,694 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1163.0) internal successors, (4652), 4 states have internal predecessors, (4652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:48,695 INFO L175 Difference]: Start difference. First operand has 215 places, 218 transitions, 493 flow. Second operand 3 states and 1994 transitions. [2023-08-31 21:37:48,695 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 213 places, 272 transitions, 908 flow [2023-08-31 21:37:48,738 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 212 places, 272 transitions, 904 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-31 21:37:48,740 INFO L231 Difference]: Finished difference. Result has 213 places, 216 transitions, 501 flow [2023-08-31 21:37:48,740 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1163, PETRI_DIFFERENCE_MINUEND_FLOW=483, PETRI_DIFFERENCE_MINUEND_PLACES=210, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=214, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=212, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=501, PETRI_PLACES=213, PETRI_TRANSITIONS=216} [2023-08-31 21:37:48,740 INFO L281 CegarLoopForPetriNet]: 257 programPoint places, -44 predicate places. [2023-08-31 21:37:48,740 INFO L495 AbstractCegarLoop]: Abstraction has has 213 places, 216 transitions, 501 flow [2023-08-31 21:37:48,741 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 624.0) internal successors, (1872), 3 states have internal predecessors, (1872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:48,741 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:37:48,741 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:37:48,741 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-31 21:37:48,741 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread3Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 136 more)] === [2023-08-31 21:37:48,741 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:37:48,742 INFO L85 PathProgramCache]: Analyzing trace with hash 851631278, now seen corresponding path program 1 times [2023-08-31 21:37:48,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:37:48,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108446925] [2023-08-31 21:37:48,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:37:48,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:37:48,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:37:48,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:37:48,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:37:48,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108446925] [2023-08-31 21:37:48,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1108446925] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:37:48,766 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:37:48,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-31 21:37:48,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862985362] [2023-08-31 21:37:48,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:37:48,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 21:37:48,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:37:48,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 21:37:48,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 21:37:48,773 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 625 out of 1163 [2023-08-31 21:37:48,774 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 213 places, 216 transitions, 501 flow. Second operand has 3 states, 3 states have (on average 629.3333333333334) internal successors, (1888), 3 states have internal predecessors, (1888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:48,774 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:37:48,774 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 625 of 1163 [2023-08-31 21:37:48,774 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:37:55,422 INFO L130 PetriNetUnfolder]: 41344/102811 cut-off events. [2023-08-31 21:37:55,423 INFO L131 PetriNetUnfolder]: For 12103/12103 co-relation queries the response was YES. [2023-08-31 21:37:55,989 INFO L83 FinitePrefix]: Finished finitePrefix Result has 171717 conditions, 102811 events. 41344/102811 cut-off events. For 12103/12103 co-relation queries the response was YES. Maximal size of possible extension queue 2571. Compared 1293301 event pairs, 26431 based on Foata normal form. 0/87535 useless extension candidates. Maximal degree in co-relation 171708. Up to 51895 conditions per place. [2023-08-31 21:37:56,256 INFO L137 encePairwiseOnDemand]: 1160/1163 looper letters, 122 selfloop transitions, 2 changer transitions 0/262 dead transitions. [2023-08-31 21:37:56,256 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 215 places, 262 transitions, 883 flow [2023-08-31 21:37:56,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 21:37:56,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 21:37:56,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1987 transitions. [2023-08-31 21:37:56,259 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5695041559186014 [2023-08-31 21:37:56,259 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1987 transitions. [2023-08-31 21:37:56,259 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1987 transitions. [2023-08-31 21:37:56,260 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:37:56,260 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1987 transitions. [2023-08-31 21:37:56,262 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 662.3333333333334) internal successors, (1987), 3 states have internal predecessors, (1987), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:56,264 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1163.0) internal successors, (4652), 4 states have internal predecessors, (4652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:56,265 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1163.0) internal successors, (4652), 4 states have internal predecessors, (4652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:56,265 INFO L175 Difference]: Start difference. First operand has 213 places, 216 transitions, 501 flow. Second operand 3 states and 1987 transitions. [2023-08-31 21:37:56,265 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 215 places, 262 transitions, 883 flow [2023-08-31 21:37:56,280 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 215 places, 262 transitions, 883 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 21:37:56,282 INFO L231 Difference]: Finished difference. Result has 216 places, 217 transitions, 513 flow [2023-08-31 21:37:56,282 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1163, PETRI_DIFFERENCE_MINUEND_FLOW=501, PETRI_DIFFERENCE_MINUEND_PLACES=213, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=216, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=214, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=513, PETRI_PLACES=216, PETRI_TRANSITIONS=217} [2023-08-31 21:37:56,282 INFO L281 CegarLoopForPetriNet]: 257 programPoint places, -41 predicate places. [2023-08-31 21:37:56,283 INFO L495 AbstractCegarLoop]: Abstraction has has 216 places, 217 transitions, 513 flow [2023-08-31 21:37:56,283 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 629.3333333333334) internal successors, (1888), 3 states have internal predecessors, (1888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:56,283 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:37:56,283 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:37:56,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-31 21:37:56,283 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread3Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 136 more)] === [2023-08-31 21:37:56,283 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:37:56,284 INFO L85 PathProgramCache]: Analyzing trace with hash -1931740987, now seen corresponding path program 1 times [2023-08-31 21:37:56,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:37:56,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250329888] [2023-08-31 21:37:56,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:37:56,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:37:56,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:37:56,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:37:56,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:37:56,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250329888] [2023-08-31 21:37:56,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1250329888] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:37:56,329 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:37:56,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 21:37:56,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685052149] [2023-08-31 21:37:56,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:37:56,330 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 21:37:56,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:37:56,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 21:37:56,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 21:37:56,345 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 620 out of 1163 [2023-08-31 21:37:56,346 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 216 places, 217 transitions, 513 flow. Second operand has 3 states, 3 states have (on average 625.0) internal successors, (1875), 3 states have internal predecessors, (1875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:56,346 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:37:56,346 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 620 of 1163 [2023-08-31 21:37:56,346 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:38:05,049 INFO L130 PetriNetUnfolder]: 66515/136509 cut-off events. [2023-08-31 21:38:05,050 INFO L131 PetriNetUnfolder]: For 25456/25456 co-relation queries the response was YES. [2023-08-31 21:38:05,617 INFO L83 FinitePrefix]: Finished finitePrefix Result has 253871 conditions, 136509 events. 66515/136509 cut-off events. For 25456/25456 co-relation queries the response was YES. Maximal size of possible extension queue 3775. Compared 1555463 event pairs, 16315 based on Foata normal form. 0/119824 useless extension candidates. Maximal degree in co-relation 253860. Up to 61614 conditions per place. [2023-08-31 21:38:06,004 INFO L137 encePairwiseOnDemand]: 1157/1163 looper letters, 141 selfloop transitions, 2 changer transitions 0/272 dead transitions. [2023-08-31 21:38:06,005 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 214 places, 272 transitions, 965 flow [2023-08-31 21:38:06,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 21:38:06,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 21:38:06,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1992 transitions. [2023-08-31 21:38:06,008 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5709372312983663 [2023-08-31 21:38:06,008 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1992 transitions. [2023-08-31 21:38:06,008 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1992 transitions. [2023-08-31 21:38:06,009 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:38:06,009 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1992 transitions. [2023-08-31 21:38:06,011 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 664.0) internal successors, (1992), 3 states have internal predecessors, (1992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:38:06,013 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1163.0) internal successors, (4652), 4 states have internal predecessors, (4652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:38:06,014 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1163.0) internal successors, (4652), 4 states have internal predecessors, (4652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:38:06,014 INFO L175 Difference]: Start difference. First operand has 216 places, 217 transitions, 513 flow. Second operand 3 states and 1992 transitions. [2023-08-31 21:38:06,014 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 214 places, 272 transitions, 965 flow [2023-08-31 21:38:06,240 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 213 places, 272 transitions, 961 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-31 21:38:06,242 INFO L231 Difference]: Finished difference. Result has 214 places, 215 transitions, 519 flow [2023-08-31 21:38:06,242 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1163, PETRI_DIFFERENCE_MINUEND_FLOW=503, PETRI_DIFFERENCE_MINUEND_PLACES=211, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=213, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=211, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=519, PETRI_PLACES=214, PETRI_TRANSITIONS=215} [2023-08-31 21:38:06,243 INFO L281 CegarLoopForPetriNet]: 257 programPoint places, -43 predicate places. [2023-08-31 21:38:06,243 INFO L495 AbstractCegarLoop]: Abstraction has has 214 places, 215 transitions, 519 flow [2023-08-31 21:38:06,243 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 625.0) internal successors, (1875), 3 states have internal predecessors, (1875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:38:06,243 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:38:06,243 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] [2023-08-31 21:38:06,244 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-31 21:38:06,244 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 136 more)] === [2023-08-31 21:38:06,244 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:38:06,244 INFO L85 PathProgramCache]: Analyzing trace with hash 1229303674, now seen corresponding path program 1 times [2023-08-31 21:38:06,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:38:06,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921631350] [2023-08-31 21:38:06,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:38:06,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:38:06,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:38:06,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:38:06,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:38:06,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921631350] [2023-08-31 21:38:06,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1921631350] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:38:06,323 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:38:06,323 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 21:38:06,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002833844] [2023-08-31 21:38:06,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:38:06,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 21:38:06,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:38:06,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 21:38:06,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-08-31 21:38:06,546 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 603 out of 1163 [2023-08-31 21:38:06,547 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 214 places, 215 transitions, 519 flow. Second operand has 6 states, 6 states have (on average 604.8333333333334) internal successors, (3629), 6 states have internal predecessors, (3629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:38:06,547 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:38:06,547 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 603 of 1163 [2023-08-31 21:38:06,547 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:38:22,002 INFO L130 PetriNetUnfolder]: 100728/216835 cut-off events. [2023-08-31 21:38:22,002 INFO L131 PetriNetUnfolder]: For 41158/41264 co-relation queries the response was YES. [2023-08-31 21:38:23,025 INFO L83 FinitePrefix]: Finished finitePrefix Result has 398403 conditions, 216835 events. 100728/216835 cut-off events. For 41158/41264 co-relation queries the response was YES. Maximal size of possible extension queue 5625. Compared 2726079 event pairs, 51669 based on Foata normal form. 1162/191706 useless extension candidates. Maximal degree in co-relation 398392. Up to 78124 conditions per place. [2023-08-31 21:38:23,683 INFO L137 encePairwiseOnDemand]: 1155/1163 looper letters, 239 selfloop transitions, 7 changer transitions 0/381 dead transitions. [2023-08-31 21:38:23,684 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 219 places, 381 transitions, 1473 flow [2023-08-31 21:38:23,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 21:38:23,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 21:38:23,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3841 transitions. [2023-08-31 21:38:23,689 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5504442533677272 [2023-08-31 21:38:23,689 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3841 transitions. [2023-08-31 21:38:23,689 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3841 transitions. [2023-08-31 21:38:23,690 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:38:23,690 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3841 transitions. [2023-08-31 21:38:23,694 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 640.1666666666666) internal successors, (3841), 6 states have internal predecessors, (3841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:38:23,698 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1163.0) internal successors, (8141), 7 states have internal predecessors, (8141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:38:23,699 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1163.0) internal successors, (8141), 7 states have internal predecessors, (8141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:38:23,699 INFO L175 Difference]: Start difference. First operand has 214 places, 215 transitions, 519 flow. Second operand 6 states and 3841 transitions. [2023-08-31 21:38:23,699 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 219 places, 381 transitions, 1473 flow [2023-08-31 21:38:24,829 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 219 places, 381 transitions, 1473 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 21:38:24,831 INFO L231 Difference]: Finished difference. Result has 223 places, 221 transitions, 576 flow [2023-08-31 21:38:24,832 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1163, PETRI_DIFFERENCE_MINUEND_FLOW=519, PETRI_DIFFERENCE_MINUEND_PLACES=214, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=215, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=208, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=576, PETRI_PLACES=223, PETRI_TRANSITIONS=221} [2023-08-31 21:38:24,832 INFO L281 CegarLoopForPetriNet]: 257 programPoint places, -34 predicate places. [2023-08-31 21:38:24,832 INFO L495 AbstractCegarLoop]: Abstraction has has 223 places, 221 transitions, 576 flow [2023-08-31 21:38:24,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 604.8333333333334) internal successors, (3629), 6 states have internal predecessors, (3629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:38:24,833 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:38:24,833 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] [2023-08-31 21:38:24,833 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-31 21:38:24,833 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thread1Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 136 more)] === [2023-08-31 21:38:24,833 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:38:24,833 INFO L85 PathProgramCache]: Analyzing trace with hash 2044955075, now seen corresponding path program 1 times [2023-08-31 21:38:24,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:38:24,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112207066] [2023-08-31 21:38:24,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:38:24,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:38:24,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:38:24,914 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-31 21:38:24,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:38:24,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112207066] [2023-08-31 21:38:24,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2112207066] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:38:24,914 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:38:24,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-31 21:38:24,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528581908] [2023-08-31 21:38:24,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:38:24,915 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 21:38:24,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:38:24,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 21:38:24,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-08-31 21:38:25,137 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 609 out of 1163 [2023-08-31 21:38:25,139 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 223 places, 221 transitions, 576 flow. Second operand has 6 states, 6 states have (on average 611.0) internal successors, (3666), 6 states have internal predecessors, (3666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:38:25,139 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:38:25,139 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 609 of 1163 [2023-08-31 21:38:25,139 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:38:54,197 INFO L130 PetriNetUnfolder]: 191706/402955 cut-off events. [2023-08-31 21:38:54,197 INFO L131 PetriNetUnfolder]: For 122746/122968 co-relation queries the response was YES. [2023-08-31 21:38:56,514 INFO L83 FinitePrefix]: Finished finitePrefix Result has 779868 conditions, 402955 events. 191706/402955 cut-off events. For 122746/122968 co-relation queries the response was YES. Maximal size of possible extension queue 10045. Compared 5351440 event pairs, 94441 based on Foata normal form. 1166/355550 useless extension candidates. Maximal degree in co-relation 779852. Up to 134465 conditions per place. [2023-08-31 21:38:57,801 INFO L137 encePairwiseOnDemand]: 1155/1163 looper letters, 245 selfloop transitions, 12 changer transitions 0/392 dead transitions. [2023-08-31 21:38:57,801 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 228 places, 392 transitions, 1593 flow [2023-08-31 21:38:57,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 21:38:57,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 21:38:57,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3877 transitions. [2023-08-31 21:38:57,806 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.555603324734881 [2023-08-31 21:38:57,806 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3877 transitions. [2023-08-31 21:38:57,806 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3877 transitions. [2023-08-31 21:38:57,807 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:38:57,807 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3877 transitions. [2023-08-31 21:38:57,810 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 646.1666666666666) internal successors, (3877), 6 states have internal predecessors, (3877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:38:57,814 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1163.0) internal successors, (8141), 7 states have internal predecessors, (8141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:38:57,814 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1163.0) internal successors, (8141), 7 states have internal predecessors, (8141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:38:57,814 INFO L175 Difference]: Start difference. First operand has 223 places, 221 transitions, 576 flow. Second operand 6 states and 3877 transitions. [2023-08-31 21:38:57,814 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 228 places, 392 transitions, 1593 flow [2023-08-31 21:39:05,108 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 227 places, 392 transitions, 1589 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-08-31 21:39:05,111 INFO L231 Difference]: Finished difference. Result has 231 places, 231 transitions, 690 flow [2023-08-31 21:39:05,112 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1163, PETRI_DIFFERENCE_MINUEND_FLOW=572, PETRI_DIFFERENCE_MINUEND_PLACES=222, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=221, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=209, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=690, PETRI_PLACES=231, PETRI_TRANSITIONS=231} [2023-08-31 21:39:05,112 INFO L281 CegarLoopForPetriNet]: 257 programPoint places, -26 predicate places. [2023-08-31 21:39:05,112 INFO L495 AbstractCegarLoop]: Abstraction has has 231 places, 231 transitions, 690 flow [2023-08-31 21:39:05,113 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 611.0) internal successors, (3666), 6 states have internal predecessors, (3666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:39:05,113 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:39:05,113 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] [2023-08-31 21:39:05,113 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-08-31 21:39:05,113 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting thread1Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 136 more)] === [2023-08-31 21:39:05,113 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:39:05,113 INFO L85 PathProgramCache]: Analyzing trace with hash 555913671, now seen corresponding path program 1 times [2023-08-31 21:39:05,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:39:05,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767628627] [2023-08-31 21:39:05,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:39:05,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:39:05,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:39:05,308 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-31 21:39:05,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:39:05,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767628627] [2023-08-31 21:39:05,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1767628627] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:39:05,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:39:05,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 21:39:05,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473406916] [2023-08-31 21:39:05,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:39:05,309 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 21:39:05,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:39:05,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 21:39:05,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 21:39:05,803 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 605 out of 1163 [2023-08-31 21:39:05,804 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 231 places, 231 transitions, 690 flow. Second operand has 6 states, 6 states have (on average 608.0) internal successors, (3648), 6 states have internal predecessors, (3648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:39:05,804 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:39:05,804 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 605 of 1163 [2023-08-31 21:39:05,804 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand