./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/goblint-regression/04-mutex_10-ptrmunge_nr.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/goblint-regression/04-mutex_10-ptrmunge_nr.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b7b2dab104eee1bd1f440bec4a0db415f1c26fa4fc41062d03a3a4935f69226f --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-29 17:28:21,701 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 17:28:21,704 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 17:28:21,746 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 17:28:21,747 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 17:28:21,750 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 17:28:21,753 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 17:28:21,755 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 17:28:21,757 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 17:28:21,762 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 17:28:21,763 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 17:28:21,765 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 17:28:21,765 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 17:28:21,767 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 17:28:21,768 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 17:28:21,773 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 17:28:21,774 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 17:28:21,775 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 17:28:21,777 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 17:28:21,781 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 17:28:21,782 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 17:28:21,783 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 17:28:21,784 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 17:28:21,785 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 17:28:21,791 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 17:28:21,792 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 17:28:21,792 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 17:28:21,794 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 17:28:21,794 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 17:28:21,795 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 17:28:21,795 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 17:28:21,797 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 17:28:21,798 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 17:28:21,799 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 17:28:21,800 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 17:28:21,800 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 17:28:21,801 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 17:28:21,801 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 17:28:21,801 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 17:28:21,802 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 17:28:21,802 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 17:28:21,804 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-29 17:28:21,834 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 17:28:21,835 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 17:28:21,836 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 17:28:21,836 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 17:28:21,837 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 17:28:21,837 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 17:28:21,838 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 17:28:21,838 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 17:28:21,838 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 17:28:21,838 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 17:28:21,839 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 17:28:21,839 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 17:28:21,839 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 17:28:21,840 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 17:28:21,840 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 17:28:21,840 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-29 17:28:21,840 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 17:28:21,840 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-29 17:28:21,841 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-29 17:28:21,841 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 17:28:21,841 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-29 17:28:21,841 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 17:28:21,841 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-29 17:28:21,842 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 17:28:21,842 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 17:28:21,842 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 17:28:21,842 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 17:28:21,842 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 17:28:21,843 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 17:28:21,843 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-29 17:28:21,843 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 17:28:21,843 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 17:28:21,844 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 17:28:21,844 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-29 17:28:21,844 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 17:28:21,844 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 17:28:21,844 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 17:28:21,845 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b7b2dab104eee1bd1f440bec4a0db415f1c26fa4fc41062d03a3a4935f69226f Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-29 17:28:22,184 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 17:28:22,202 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 17:28:22,204 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 17:28:22,205 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 17:28:22,205 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 17:28:22,207 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/04-mutex_10-ptrmunge_nr.i [2023-08-29 17:28:23,330 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 17:28:23,603 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 17:28:23,604 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/04-mutex_10-ptrmunge_nr.i [2023-08-29 17:28:23,616 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/285626f9f/b7831baa2b6d4d0bab08bf829817b69f/FLAG625b081cb [2023-08-29 17:28:23,632 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/285626f9f/b7831baa2b6d4d0bab08bf829817b69f [2023-08-29 17:28:23,639 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 17:28:23,640 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 17:28:23,643 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 17:28:23,643 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 17:28:23,646 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 17:28:23,646 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 05:28:23" (1/1) ... [2023-08-29 17:28:23,647 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f27984 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:28:23, skipping insertion in model container [2023-08-29 17:28:23,647 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 05:28:23" (1/1) ... [2023-08-29 17:28:23,653 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 17:28:23,699 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 17:28:24,072 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 17:28:24,089 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 17:28:24,140 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 17:28:24,259 INFO L208 MainTranslator]: Completed translation [2023-08-29 17:28:24,260 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:28:24 WrapperNode [2023-08-29 17:28:24,260 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 17:28:24,261 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 17:28:24,261 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 17:28:24,261 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 17:28:24,268 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:28:24" (1/1) ... [2023-08-29 17:28:24,298 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:28:24" (1/1) ... [2023-08-29 17:28:24,338 INFO L138 Inliner]: procedures = 263, calls = 29, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 91 [2023-08-29 17:28:24,338 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 17:28:24,339 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 17:28:24,339 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 17:28:24,339 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 17:28:24,347 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:28:24" (1/1) ... [2023-08-29 17:28:24,348 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:28:24" (1/1) ... [2023-08-29 17:28:24,359 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:28:24" (1/1) ... [2023-08-29 17:28:24,360 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:28:24" (1/1) ... [2023-08-29 17:28:24,369 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:28:24" (1/1) ... [2023-08-29 17:28:24,378 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:28:24" (1/1) ... [2023-08-29 17:28:24,380 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:28:24" (1/1) ... [2023-08-29 17:28:24,385 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:28:24" (1/1) ... [2023-08-29 17:28:24,387 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 17:28:24,394 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 17:28:24,394 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 17:28:24,394 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 17:28:24,395 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:28:24" (1/1) ... [2023-08-29 17:28:24,400 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 17:28:24,411 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 17:28:24,423 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-29 17:28:24,445 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-29 17:28:24,457 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 17:28:24,457 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 17:28:24,457 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-29 17:28:24,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-29 17:28:24,458 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-29 17:28:24,458 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-29 17:28:24,458 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-29 17:28:24,458 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-29 17:28:24,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-29 17:28:24,458 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 17:28:24,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 17:28:24,460 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-29 17:28:24,616 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 17:28:24,618 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 17:28:24,845 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 17:28:24,851 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 17:28:24,851 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-29 17:28:24,853 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 05:28:24 BoogieIcfgContainer [2023-08-29 17:28:24,853 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 17:28:24,864 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 17:28:24,865 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 17:28:24,868 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 17:28:24,868 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 05:28:23" (1/3) ... [2023-08-29 17:28:24,869 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d69a9a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 05:28:24, skipping insertion in model container [2023-08-29 17:28:24,869 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:28:24" (2/3) ... [2023-08-29 17:28:24,869 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d69a9a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 05:28:24, skipping insertion in model container [2023-08-29 17:28:24,869 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 05:28:24" (3/3) ... [2023-08-29 17:28:24,872 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_10-ptrmunge_nr.i [2023-08-29 17:28:24,880 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-29 17:28:24,889 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 17:28:24,889 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2023-08-29 17:28:24,890 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 17:28:24,985 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-29 17:28:25,018 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 103 places, 99 transitions, 206 flow [2023-08-29 17:28:25,070 INFO L130 PetriNetUnfolder]: 0/98 cut-off events. [2023-08-29 17:28:25,071 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-29 17:28:25,073 INFO L83 FinitePrefix]: Finished finitePrefix Result has 103 conditions, 98 events. 0/98 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 64 event pairs, 0 based on Foata normal form. 0/93 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2023-08-29 17:28:25,073 INFO L82 GeneralOperation]: Start removeDead. Operand has 103 places, 99 transitions, 206 flow [2023-08-29 17:28:25,076 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 95 places, 91 transitions, 185 flow [2023-08-29 17:28:25,079 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 17:28:25,087 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 95 places, 91 transitions, 185 flow [2023-08-29 17:28:25,090 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 95 places, 91 transitions, 185 flow [2023-08-29 17:28:25,090 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 95 places, 91 transitions, 185 flow [2023-08-29 17:28:25,113 INFO L130 PetriNetUnfolder]: 0/91 cut-off events. [2023-08-29 17:28:25,113 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 17:28:25,113 INFO L83 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 91 events. 0/91 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 64 event pairs, 0 based on Foata normal form. 0/86 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-08-29 17:28:25,115 INFO L119 LiptonReduction]: Number of co-enabled transitions 1836 [2023-08-29 17:28:27,677 INFO L134 LiptonReduction]: Checked pairs total: 10947 [2023-08-29 17:28:27,677 INFO L136 LiptonReduction]: Total number of compositions: 50 [2023-08-29 17:28:27,691 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 17:28:27,696 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;@617c26c4, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 17:28:27,697 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-08-29 17:28:27,701 INFO L130 PetriNetUnfolder]: 0/14 cut-off events. [2023-08-29 17:28:27,702 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 17:28:27,702 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:28:27,703 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:28:27,703 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-29 17:28:27,707 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:28:27,708 INFO L85 PathProgramCache]: Analyzing trace with hash 1539204769, now seen corresponding path program 1 times [2023-08-29 17:28:27,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:28:27,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753698852] [2023-08-29 17:28:27,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:28:27,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:28:27,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:28:28,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:28:28,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:28:28,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753698852] [2023-08-29 17:28:28,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1753698852] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:28:28,276 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:28:28,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 17:28:28,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562938569] [2023-08-29 17:28:28,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:28:28,284 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 17:28:28,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:28:28,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 17:28:28,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 17:28:28,505 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 149 [2023-08-29 17:28:28,508 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 41 transitions, 85 flow. Second operand has 6 states, 6 states have (on average 81.5) internal successors, (489), 6 states have internal predecessors, (489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:28:28,508 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:28:28,508 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 149 [2023-08-29 17:28:28,509 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:28:28,730 INFO L130 PetriNetUnfolder]: 182/519 cut-off events. [2023-08-29 17:28:28,730 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 17:28:28,733 INFO L83 FinitePrefix]: Finished finitePrefix Result has 921 conditions, 519 events. 182/519 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 2536 event pairs, 83 based on Foata normal form. 0/494 useless extension candidates. Maximal degree in co-relation 912. Up to 289 conditions per place. [2023-08-29 17:28:28,736 INFO L137 encePairwiseOnDemand]: 138/149 looper letters, 51 selfloop transitions, 22 changer transitions 0/87 dead transitions. [2023-08-29 17:28:28,736 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 87 transitions, 323 flow [2023-08-29 17:28:28,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 17:28:28,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 17:28:28,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 554 transitions. [2023-08-29 17:28:28,750 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6196868008948546 [2023-08-29 17:28:28,750 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 554 transitions. [2023-08-29 17:28:28,751 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 554 transitions. [2023-08-29 17:28:28,753 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:28:28,755 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 554 transitions. [2023-08-29 17:28:28,758 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 92.33333333333333) internal successors, (554), 6 states have internal predecessors, (554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:28:28,763 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 149.0) internal successors, (1043), 7 states have internal predecessors, (1043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:28:28,764 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 149.0) internal successors, (1043), 7 states have internal predecessors, (1043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:28:28,765 INFO L175 Difference]: Start difference. First operand has 45 places, 41 transitions, 85 flow. Second operand 6 states and 554 transitions. [2023-08-29 17:28:28,766 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 87 transitions, 323 flow [2023-08-29 17:28:28,768 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 87 transitions, 322 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 17:28:28,770 INFO L231 Difference]: Finished difference. Result has 54 places, 62 transitions, 234 flow [2023-08-29 17:28:28,772 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=84, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=234, PETRI_PLACES=54, PETRI_TRANSITIONS=62} [2023-08-29 17:28:28,775 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 9 predicate places. [2023-08-29 17:28:28,775 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 62 transitions, 234 flow [2023-08-29 17:28:28,775 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 81.5) internal successors, (489), 6 states have internal predecessors, (489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:28:28,776 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:28:28,776 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:28:28,776 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-29 17:28:28,776 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-29 17:28:28,777 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:28:28,777 INFO L85 PathProgramCache]: Analyzing trace with hash -1776116605, now seen corresponding path program 1 times [2023-08-29 17:28:28,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:28:28,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172273051] [2023-08-29 17:28:28,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:28:28,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:28:28,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:28:28,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:28:28,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:28:28,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172273051] [2023-08-29 17:28:28,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172273051] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:28:28,994 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:28:28,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 17:28:28,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150001859] [2023-08-29 17:28:28,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:28:28,995 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 17:28:28,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:28:28,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 17:28:28,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 17:28:29,121 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 149 [2023-08-29 17:28:29,122 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 62 transitions, 234 flow. Second operand has 6 states, 6 states have (on average 81.5) internal successors, (489), 6 states have internal predecessors, (489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:28:29,123 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:28:29,123 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 149 [2023-08-29 17:28:29,123 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:28:29,278 INFO L130 PetriNetUnfolder]: 214/619 cut-off events. [2023-08-29 17:28:29,279 INFO L131 PetriNetUnfolder]: For 117/120 co-relation queries the response was YES. [2023-08-29 17:28:29,283 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1305 conditions, 619 events. 214/619 cut-off events. For 117/120 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 3221 event pairs, 86 based on Foata normal form. 0/592 useless extension candidates. Maximal degree in co-relation 1292. Up to 348 conditions per place. [2023-08-29 17:28:29,286 INFO L137 encePairwiseOnDemand]: 138/149 looper letters, 60 selfloop transitions, 26 changer transitions 0/104 dead transitions. [2023-08-29 17:28:29,286 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 104 transitions, 508 flow [2023-08-29 17:28:29,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 17:28:29,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 17:28:29,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 550 transitions. [2023-08-29 17:28:29,292 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6152125279642058 [2023-08-29 17:28:29,292 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 550 transitions. [2023-08-29 17:28:29,292 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 550 transitions. [2023-08-29 17:28:29,292 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:28:29,293 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 550 transitions. [2023-08-29 17:28:29,294 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 91.66666666666667) internal successors, (550), 6 states have internal predecessors, (550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:28:29,297 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 149.0) internal successors, (1043), 7 states have internal predecessors, (1043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:28:29,298 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 149.0) internal successors, (1043), 7 states have internal predecessors, (1043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:28:29,298 INFO L175 Difference]: Start difference. First operand has 54 places, 62 transitions, 234 flow. Second operand 6 states and 550 transitions. [2023-08-29 17:28:29,299 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 104 transitions, 508 flow [2023-08-29 17:28:29,304 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 104 transitions, 508 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 17:28:29,306 INFO L231 Difference]: Finished difference. Result has 64 places, 83 transitions, 418 flow [2023-08-29 17:28:29,306 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=234, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=418, PETRI_PLACES=64, PETRI_TRANSITIONS=83} [2023-08-29 17:28:29,307 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 19 predicate places. [2023-08-29 17:28:29,307 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 83 transitions, 418 flow [2023-08-29 17:28:29,307 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 81.5) internal successors, (489), 6 states have internal predecessors, (489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:28:29,307 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:28:29,308 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:28:29,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-29 17:28:29,308 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-29 17:28:29,311 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:28:29,312 INFO L85 PathProgramCache]: Analyzing trace with hash 389650683, now seen corresponding path program 1 times [2023-08-29 17:28:29,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:28:29,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297201564] [2023-08-29 17:28:29,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:28:29,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:28:29,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:28:29,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:28:29,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:28:29,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297201564] [2023-08-29 17:28:29,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1297201564] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:28:29,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:28:29,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 17:28:29,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686477776] [2023-08-29 17:28:29,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:28:29,526 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 17:28:29,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:28:29,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 17:28:29,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 17:28:29,624 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 149 [2023-08-29 17:28:29,625 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 83 transitions, 418 flow. Second operand has 6 states, 6 states have (on average 72.5) internal successors, (435), 6 states have internal predecessors, (435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:28:29,625 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:28:29,625 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 149 [2023-08-29 17:28:29,625 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:28:29,819 INFO L130 PetriNetUnfolder]: 416/961 cut-off events. [2023-08-29 17:28:29,820 INFO L131 PetriNetUnfolder]: For 608/611 co-relation queries the response was YES. [2023-08-29 17:28:29,822 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2669 conditions, 961 events. 416/961 cut-off events. For 608/611 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 4872 event pairs, 176 based on Foata normal form. 0/921 useless extension candidates. Maximal degree in co-relation 2651. Up to 740 conditions per place. [2023-08-29 17:28:29,825 INFO L137 encePairwiseOnDemand]: 134/149 looper letters, 90 selfloop transitions, 53 changer transitions 0/150 dead transitions. [2023-08-29 17:28:29,825 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 150 transitions, 964 flow [2023-08-29 17:28:29,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 17:28:29,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 17:28:29,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 513 transitions. [2023-08-29 17:28:29,828 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5738255033557047 [2023-08-29 17:28:29,828 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 513 transitions. [2023-08-29 17:28:29,828 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 513 transitions. [2023-08-29 17:28:29,828 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:28:29,829 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 513 transitions. [2023-08-29 17:28:29,830 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 85.5) internal successors, (513), 6 states have internal predecessors, (513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:28:29,832 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 149.0) internal successors, (1043), 7 states have internal predecessors, (1043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:28:29,832 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 149.0) internal successors, (1043), 7 states have internal predecessors, (1043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:28:29,833 INFO L175 Difference]: Start difference. First operand has 64 places, 83 transitions, 418 flow. Second operand 6 states and 513 transitions. [2023-08-29 17:28:29,833 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 150 transitions, 964 flow [2023-08-29 17:28:29,837 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 150 transitions, 964 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 17:28:29,839 INFO L231 Difference]: Finished difference. Result has 74 places, 130 transitions, 892 flow [2023-08-29 17:28:29,840 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=418, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=892, PETRI_PLACES=74, PETRI_TRANSITIONS=130} [2023-08-29 17:28:29,840 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 29 predicate places. [2023-08-29 17:28:29,841 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 130 transitions, 892 flow [2023-08-29 17:28:29,841 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 72.5) internal successors, (435), 6 states have internal predecessors, (435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:28:29,841 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:28:29,841 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:28:29,841 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-29 17:28:29,842 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-29 17:28:29,842 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:28:29,842 INFO L85 PathProgramCache]: Analyzing trace with hash 195939132, now seen corresponding path program 1 times [2023-08-29 17:28:29,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:28:29,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249350356] [2023-08-29 17:28:29,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:28:29,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:28:29,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:28:30,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:28:30,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:28:30,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249350356] [2023-08-29 17:28:30,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [249350356] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:28:30,038 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:28:30,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 17:28:30,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251353768] [2023-08-29 17:28:30,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:28:30,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 17:28:30,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:28:30,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 17:28:30,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 17:28:30,116 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 149 [2023-08-29 17:28:30,117 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 130 transitions, 892 flow. Second operand has 6 states, 6 states have (on average 72.5) internal successors, (435), 6 states have internal predecessors, (435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:28:30,117 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:28:30,118 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 149 [2023-08-29 17:28:30,118 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:28:30,432 INFO L130 PetriNetUnfolder]: 527/1189 cut-off events. [2023-08-29 17:28:30,432 INFO L131 PetriNetUnfolder]: For 1459/1476 co-relation queries the response was YES. [2023-08-29 17:28:30,435 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4006 conditions, 1189 events. 527/1189 cut-off events. For 1459/1476 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 6290 event pairs, 151 based on Foata normal form. 0/1138 useless extension candidates. Maximal degree in co-relation 3983. Up to 901 conditions per place. [2023-08-29 17:28:30,440 INFO L137 encePairwiseOnDemand]: 130/149 looper letters, 138 selfloop transitions, 83 changer transitions 0/228 dead transitions. [2023-08-29 17:28:30,441 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 228 transitions, 1804 flow [2023-08-29 17:28:30,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 17:28:30,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 17:28:30,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 533 transitions. [2023-08-29 17:28:30,443 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5961968680089486 [2023-08-29 17:28:30,443 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 533 transitions. [2023-08-29 17:28:30,443 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 533 transitions. [2023-08-29 17:28:30,444 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:28:30,444 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 533 transitions. [2023-08-29 17:28:30,445 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 88.83333333333333) internal successors, (533), 6 states have internal predecessors, (533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:28:30,447 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 149.0) internal successors, (1043), 7 states have internal predecessors, (1043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:28:30,447 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 149.0) internal successors, (1043), 7 states have internal predecessors, (1043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:28:30,448 INFO L175 Difference]: Start difference. First operand has 74 places, 130 transitions, 892 flow. Second operand 6 states and 533 transitions. [2023-08-29 17:28:30,448 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 228 transitions, 1804 flow [2023-08-29 17:28:30,456 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 228 transitions, 1748 flow, removed 28 selfloop flow, removed 0 redundant places. [2023-08-29 17:28:30,459 INFO L231 Difference]: Finished difference. Result has 84 places, 199 transitions, 1600 flow [2023-08-29 17:28:30,460 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=842, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1600, PETRI_PLACES=84, PETRI_TRANSITIONS=199} [2023-08-29 17:28:30,460 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 39 predicate places. [2023-08-29 17:28:30,461 INFO L495 AbstractCegarLoop]: Abstraction has has 84 places, 199 transitions, 1600 flow [2023-08-29 17:28:30,461 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 72.5) internal successors, (435), 6 states have internal predecessors, (435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:28:30,461 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:28:30,461 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:28:30,461 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-29 17:28:30,462 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-29 17:28:30,462 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:28:30,462 INFO L85 PathProgramCache]: Analyzing trace with hash 1709265970, now seen corresponding path program 1 times [2023-08-29 17:28:30,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:28:30,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722246001] [2023-08-29 17:28:30,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:28:30,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:28:30,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:28:30,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:28:30,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:28:30,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722246001] [2023-08-29 17:28:30,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1722246001] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:28:30,871 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:28:30,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 17:28:30,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140706042] [2023-08-29 17:28:30,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:28:30,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 17:28:30,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:28:30,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 17:28:30,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-08-29 17:28:31,366 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 149 [2023-08-29 17:28:31,367 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 199 transitions, 1600 flow. Second operand has 10 states, 10 states have (on average 77.3) internal successors, (773), 10 states have internal predecessors, (773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:28:31,367 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:28:31,367 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 149 [2023-08-29 17:28:31,367 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:28:31,939 INFO L130 PetriNetUnfolder]: 803/1970 cut-off events. [2023-08-29 17:28:31,940 INFO L131 PetriNetUnfolder]: For 4043/4117 co-relation queries the response was YES. [2023-08-29 17:28:31,947 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7888 conditions, 1970 events. 803/1970 cut-off events. For 4043/4117 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 13288 event pairs, 71 based on Foata normal form. 24/1953 useless extension candidates. Maximal degree in co-relation 7860. Up to 694 conditions per place. [2023-08-29 17:28:31,957 INFO L137 encePairwiseOnDemand]: 135/149 looper letters, 301 selfloop transitions, 64 changer transitions 0/418 dead transitions. [2023-08-29 17:28:31,958 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 418 transitions, 4038 flow [2023-08-29 17:28:31,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-29 17:28:31,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-29 17:28:31,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 948 transitions. [2023-08-29 17:28:31,961 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5784014643075046 [2023-08-29 17:28:31,961 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 948 transitions. [2023-08-29 17:28:31,961 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 948 transitions. [2023-08-29 17:28:31,962 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:28:31,962 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 948 transitions. [2023-08-29 17:28:31,964 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 86.18181818181819) internal successors, (948), 11 states have internal predecessors, (948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:28:31,966 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 149.0) internal successors, (1788), 12 states have internal predecessors, (1788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:28:31,967 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 149.0) internal successors, (1788), 12 states have internal predecessors, (1788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:28:31,967 INFO L175 Difference]: Start difference. First operand has 84 places, 199 transitions, 1600 flow. Second operand 11 states and 948 transitions. [2023-08-29 17:28:31,967 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 418 transitions, 4038 flow [2023-08-29 17:28:31,998 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 418 transitions, 3892 flow, removed 73 selfloop flow, removed 0 redundant places. [2023-08-29 17:28:32,004 INFO L231 Difference]: Finished difference. Result has 101 places, 252 transitions, 2332 flow [2023-08-29 17:28:32,004 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=1518, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=199, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=147, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=2332, PETRI_PLACES=101, PETRI_TRANSITIONS=252} [2023-08-29 17:28:32,005 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 56 predicate places. [2023-08-29 17:28:32,005 INFO L495 AbstractCegarLoop]: Abstraction has has 101 places, 252 transitions, 2332 flow [2023-08-29 17:28:32,006 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 77.3) internal successors, (773), 10 states have internal predecessors, (773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:28:32,006 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:28:32,006 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:28:32,006 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-29 17:28:32,006 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-29 17:28:32,007 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:28:32,007 INFO L85 PathProgramCache]: Analyzing trace with hash 191672506, now seen corresponding path program 2 times [2023-08-29 17:28:32,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:28:32,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721803129] [2023-08-29 17:28:32,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:28:32,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:28:32,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:28:32,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:28:32,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:28:32,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721803129] [2023-08-29 17:28:32,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1721803129] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:28:32,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:28:32,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 17:28:32,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494724207] [2023-08-29 17:28:32,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:28:32,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 17:28:32,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:28:32,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 17:28:32,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-08-29 17:28:32,694 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 149 [2023-08-29 17:28:32,695 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 252 transitions, 2332 flow. Second operand has 10 states, 10 states have (on average 77.3) internal successors, (773), 10 states have internal predecessors, (773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:28:32,695 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:28:32,695 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 149 [2023-08-29 17:28:32,695 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:28:33,325 INFO L130 PetriNetUnfolder]: 855/2074 cut-off events. [2023-08-29 17:28:33,325 INFO L131 PetriNetUnfolder]: For 6273/6354 co-relation queries the response was YES. [2023-08-29 17:28:33,332 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8901 conditions, 2074 events. 855/2074 cut-off events. For 6273/6354 co-relation queries the response was YES. Maximal size of possible extension queue 106. Compared 14096 event pairs, 91 based on Foata normal form. 16/2045 useless extension candidates. Maximal degree in co-relation 8864. Up to 1237 conditions per place. [2023-08-29 17:28:33,343 INFO L137 encePairwiseOnDemand]: 135/149 looper letters, 181 selfloop transitions, 88 changer transitions 0/322 dead transitions. [2023-08-29 17:28:33,344 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 322 transitions, 3421 flow [2023-08-29 17:28:33,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-29 17:28:33,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-29 17:28:33,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 780 transitions. [2023-08-29 17:28:33,347 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5816554809843401 [2023-08-29 17:28:33,347 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 780 transitions. [2023-08-29 17:28:33,347 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 780 transitions. [2023-08-29 17:28:33,348 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:28:33,348 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 780 transitions. [2023-08-29 17:28:33,350 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 86.66666666666667) internal successors, (780), 9 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:28:33,352 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 149.0) internal successors, (1490), 10 states have internal predecessors, (1490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:28:33,352 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 149.0) internal successors, (1490), 10 states have internal predecessors, (1490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:28:33,353 INFO L175 Difference]: Start difference. First operand has 101 places, 252 transitions, 2332 flow. Second operand 9 states and 780 transitions. [2023-08-29 17:28:33,353 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 322 transitions, 3421 flow [2023-08-29 17:28:33,381 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 322 transitions, 3416 flow, removed 2 selfloop flow, removed 1 redundant places. [2023-08-29 17:28:33,386 INFO L231 Difference]: Finished difference. Result has 111 places, 273 transitions, 2980 flow [2023-08-29 17:28:33,387 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=2327, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=252, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=67, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=173, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2980, PETRI_PLACES=111, PETRI_TRANSITIONS=273} [2023-08-29 17:28:33,388 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 66 predicate places. [2023-08-29 17:28:33,388 INFO L495 AbstractCegarLoop]: Abstraction has has 111 places, 273 transitions, 2980 flow [2023-08-29 17:28:33,388 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 77.3) internal successors, (773), 10 states have internal predecessors, (773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:28:33,388 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:28:33,389 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:28:33,389 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-29 17:28:33,389 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-29 17:28:33,389 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:28:33,390 INFO L85 PathProgramCache]: Analyzing trace with hash -1081218985, now seen corresponding path program 1 times [2023-08-29 17:28:33,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:28:33,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277955081] [2023-08-29 17:28:33,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:28:33,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:28:33,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:28:33,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:28:33,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:28:33,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277955081] [2023-08-29 17:28:33,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [277955081] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:28:33,666 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:28:33,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 17:28:33,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968500941] [2023-08-29 17:28:33,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:28:33,667 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 17:28:33,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:28:33,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 17:28:33,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-08-29 17:28:34,083 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 149 [2023-08-29 17:28:34,084 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 273 transitions, 2980 flow. Second operand has 10 states, 10 states have (on average 77.3) internal successors, (773), 10 states have internal predecessors, (773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:28:34,084 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:28:34,085 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 149 [2023-08-29 17:28:34,085 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:28:34,689 INFO L130 PetriNetUnfolder]: 929/2221 cut-off events. [2023-08-29 17:28:34,689 INFO L131 PetriNetUnfolder]: For 9139/9187 co-relation queries the response was YES. [2023-08-29 17:28:34,696 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10018 conditions, 2221 events. 929/2221 cut-off events. For 9139/9187 co-relation queries the response was YES. Maximal size of possible extension queue 112. Compared 15036 event pairs, 83 based on Foata normal form. 16/2190 useless extension candidates. Maximal degree in co-relation 9977. Up to 797 conditions per place. [2023-08-29 17:28:34,708 INFO L137 encePairwiseOnDemand]: 135/149 looper letters, 336 selfloop transitions, 70 changer transitions 0/489 dead transitions. [2023-08-29 17:28:34,708 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 489 transitions, 5479 flow [2023-08-29 17:28:34,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-29 17:28:34,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-29 17:28:34,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 867 transitions. [2023-08-29 17:28:34,712 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5818791946308725 [2023-08-29 17:28:34,712 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 867 transitions. [2023-08-29 17:28:34,712 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 867 transitions. [2023-08-29 17:28:34,712 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:28:34,713 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 867 transitions. [2023-08-29 17:28:34,715 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 86.7) internal successors, (867), 10 states have internal predecessors, (867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:28:34,717 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 149.0) internal successors, (1639), 11 states have internal predecessors, (1639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:28:34,718 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 149.0) internal successors, (1639), 11 states have internal predecessors, (1639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:28:34,718 INFO L175 Difference]: Start difference. First operand has 111 places, 273 transitions, 2980 flow. Second operand 10 states and 867 transitions. [2023-08-29 17:28:34,718 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 489 transitions, 5479 flow [2023-08-29 17:28:34,756 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 489 transitions, 5410 flow, removed 5 selfloop flow, removed 5 redundant places. [2023-08-29 17:28:34,762 INFO L231 Difference]: Finished difference. Result has 121 places, 326 transitions, 3779 flow [2023-08-29 17:28:34,763 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=2924, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=273, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=215, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=3779, PETRI_PLACES=121, PETRI_TRANSITIONS=326} [2023-08-29 17:28:34,763 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 76 predicate places. [2023-08-29 17:28:34,764 INFO L495 AbstractCegarLoop]: Abstraction has has 121 places, 326 transitions, 3779 flow [2023-08-29 17:28:34,764 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 77.3) internal successors, (773), 10 states have internal predecessors, (773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:28:34,764 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:28:34,764 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:28:34,765 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-29 17:28:34,765 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-29 17:28:34,765 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:28:34,768 INFO L85 PathProgramCache]: Analyzing trace with hash 842864954, now seen corresponding path program 3 times [2023-08-29 17:28:34,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:28:34,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794455055] [2023-08-29 17:28:34,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:28:34,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:28:34,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:28:35,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:28:35,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:28:35,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794455055] [2023-08-29 17:28:35,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794455055] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:28:35,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:28:35,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 17:28:35,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855622790] [2023-08-29 17:28:35,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:28:35,146 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 17:28:35,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:28:35,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 17:28:35,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-08-29 17:28:35,528 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 149 [2023-08-29 17:28:35,529 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 326 transitions, 3779 flow. Second operand has 10 states, 10 states have (on average 77.3) internal successors, (773), 10 states have internal predecessors, (773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:28:35,530 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:28:35,530 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 149 [2023-08-29 17:28:35,530 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:28:36,291 INFO L130 PetriNetUnfolder]: 1008/2408 cut-off events. [2023-08-29 17:28:36,291 INFO L131 PetriNetUnfolder]: For 12584/12639 co-relation queries the response was YES. [2023-08-29 17:28:36,299 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11484 conditions, 2408 events. 1008/2408 cut-off events. For 12584/12639 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 16675 event pairs, 101 based on Foata normal form. 14/2368 useless extension candidates. Maximal degree in co-relation 11437. Up to 1349 conditions per place. [2023-08-29 17:28:36,315 INFO L137 encePairwiseOnDemand]: 135/149 looper letters, 219 selfloop transitions, 117 changer transitions 0/419 dead transitions. [2023-08-29 17:28:36,315 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 419 transitions, 5320 flow [2023-08-29 17:28:36,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-29 17:28:36,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-29 17:28:36,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 866 transitions. [2023-08-29 17:28:36,318 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5812080536912752 [2023-08-29 17:28:36,318 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 866 transitions. [2023-08-29 17:28:36,318 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 866 transitions. [2023-08-29 17:28:36,319 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:28:36,319 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 866 transitions. [2023-08-29 17:28:36,320 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 86.6) internal successors, (866), 10 states have internal predecessors, (866), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:28:36,322 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 149.0) internal successors, (1639), 11 states have internal predecessors, (1639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:28:36,322 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 149.0) internal successors, (1639), 11 states have internal predecessors, (1639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:28:36,322 INFO L175 Difference]: Start difference. First operand has 121 places, 326 transitions, 3779 flow. Second operand 10 states and 866 transitions. [2023-08-29 17:28:36,322 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 419 transitions, 5320 flow [2023-08-29 17:28:36,374 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 419 transitions, 5309 flow, removed 1 selfloop flow, removed 2 redundant places. [2023-08-29 17:28:36,381 INFO L231 Difference]: Finished difference. Result has 133 places, 358 transitions, 4795 flow [2023-08-29 17:28:36,381 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=3772, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=326, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=85, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=220, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=4795, PETRI_PLACES=133, PETRI_TRANSITIONS=358} [2023-08-29 17:28:36,385 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 88 predicate places. [2023-08-29 17:28:36,385 INFO L495 AbstractCegarLoop]: Abstraction has has 133 places, 358 transitions, 4795 flow [2023-08-29 17:28:36,385 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 77.3) internal successors, (773), 10 states have internal predecessors, (773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:28:36,385 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:28:36,386 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:28:36,386 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-29 17:28:36,386 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-29 17:28:36,386 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:28:36,386 INFO L85 PathProgramCache]: Analyzing trace with hash 2076080314, now seen corresponding path program 4 times [2023-08-29 17:28:36,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:28:36,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711214429] [2023-08-29 17:28:36,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:28:36,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:28:36,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:28:36,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:28:36,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:28:36,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711214429] [2023-08-29 17:28:36,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [711214429] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:28:36,615 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:28:36,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 17:28:36,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201191973] [2023-08-29 17:28:36,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:28:36,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 17:28:36,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:28:36,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 17:28:36,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-08-29 17:28:37,002 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 149 [2023-08-29 17:28:37,003 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 358 transitions, 4795 flow. Second operand has 10 states, 10 states have (on average 77.3) internal successors, (773), 10 states have internal predecessors, (773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:28:37,003 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:28:37,004 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 149 [2023-08-29 17:28:37,004 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:28:37,740 INFO L130 PetriNetUnfolder]: 1043/2497 cut-off events. [2023-08-29 17:28:37,741 INFO L131 PetriNetUnfolder]: For 18636/18775 co-relation queries the response was YES. [2023-08-29 17:28:37,751 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12691 conditions, 2497 events. 1043/2497 cut-off events. For 18636/18775 co-relation queries the response was YES. Maximal size of possible extension queue 130. Compared 17550 event pairs, 97 based on Foata normal form. 45/2483 useless extension candidates. Maximal degree in co-relation 12639. Up to 733 conditions per place. [2023-08-29 17:28:37,767 INFO L137 encePairwiseOnDemand]: 135/149 looper letters, 352 selfloop transitions, 103 changer transitions 0/538 dead transitions. [2023-08-29 17:28:37,767 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 538 transitions, 7165 flow [2023-08-29 17:28:37,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-29 17:28:37,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-29 17:28:37,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 872 transitions. [2023-08-29 17:28:37,772 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5852348993288591 [2023-08-29 17:28:37,772 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 872 transitions. [2023-08-29 17:28:37,772 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 872 transitions. [2023-08-29 17:28:37,773 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:28:37,773 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 872 transitions. [2023-08-29 17:28:37,775 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 87.2) internal successors, (872), 10 states have internal predecessors, (872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:28:37,777 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 149.0) internal successors, (1639), 11 states have internal predecessors, (1639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:28:37,778 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 149.0) internal successors, (1639), 11 states have internal predecessors, (1639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:28:37,778 INFO L175 Difference]: Start difference. First operand has 133 places, 358 transitions, 4795 flow. Second operand 10 states and 872 transitions. [2023-08-29 17:28:37,778 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 538 transitions, 7165 flow [2023-08-29 17:28:37,840 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 538 transitions, 7077 flow, removed 18 selfloop flow, removed 4 redundant places. [2023-08-29 17:28:37,848 INFO L231 Difference]: Finished difference. Result has 145 places, 384 transitions, 5487 flow [2023-08-29 17:28:37,849 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=4722, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=358, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=77, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=255, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=5487, PETRI_PLACES=145, PETRI_TRANSITIONS=384} [2023-08-29 17:28:37,850 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 100 predicate places. [2023-08-29 17:28:37,850 INFO L495 AbstractCegarLoop]: Abstraction has has 145 places, 384 transitions, 5487 flow [2023-08-29 17:28:37,850 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 77.3) internal successors, (773), 10 states have internal predecessors, (773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:28:37,851 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:28:37,851 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:28:37,851 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-29 17:28:37,851 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-29 17:28:37,852 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:28:37,852 INFO L85 PathProgramCache]: Analyzing trace with hash -1402981190, now seen corresponding path program 5 times [2023-08-29 17:28:37,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:28:37,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734457921] [2023-08-29 17:28:37,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:28:37,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:28:37,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:28:38,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:28:38,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:28:38,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734457921] [2023-08-29 17:28:38,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [734457921] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:28:38,158 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:28:38,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 17:28:38,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336587341] [2023-08-29 17:28:38,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:28:38,160 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 17:28:38,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:28:38,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 17:28:38,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-08-29 17:28:38,550 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 149 [2023-08-29 17:28:38,551 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 384 transitions, 5487 flow. Second operand has 10 states, 10 states have (on average 77.3) internal successors, (773), 10 states have internal predecessors, (773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:28:38,551 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:28:38,551 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 149 [2023-08-29 17:28:38,551 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:28:39,291 INFO L130 PetriNetUnfolder]: 1138/2727 cut-off events. [2023-08-29 17:28:39,291 INFO L131 PetriNetUnfolder]: For 27774/27913 co-relation queries the response was YES. [2023-08-29 17:28:39,305 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14788 conditions, 2727 events. 1138/2727 cut-off events. For 27774/27913 co-relation queries the response was YES. Maximal size of possible extension queue 144. Compared 19577 event pairs, 115 based on Foata normal form. 37/2694 useless extension candidates. Maximal degree in co-relation 14729. Up to 1444 conditions per place. [2023-08-29 17:28:39,318 INFO L137 encePairwiseOnDemand]: 135/149 looper letters, 267 selfloop transitions, 145 changer transitions 0/495 dead transitions. [2023-08-29 17:28:39,318 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 154 places, 495 transitions, 7537 flow [2023-08-29 17:28:39,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-29 17:28:39,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-29 17:28:39,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 868 transitions. [2023-08-29 17:28:39,321 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5825503355704698 [2023-08-29 17:28:39,321 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 868 transitions. [2023-08-29 17:28:39,321 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 868 transitions. [2023-08-29 17:28:39,322 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:28:39,322 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 868 transitions. [2023-08-29 17:28:39,324 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 86.8) internal successors, (868), 10 states have internal predecessors, (868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:28:39,326 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 149.0) internal successors, (1639), 11 states have internal predecessors, (1639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:28:39,327 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 149.0) internal successors, (1639), 11 states have internal predecessors, (1639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:28:39,327 INFO L175 Difference]: Start difference. First operand has 145 places, 384 transitions, 5487 flow. Second operand 10 states and 868 transitions. [2023-08-29 17:28:39,327 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 154 places, 495 transitions, 7537 flow [2023-08-29 17:28:39,464 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 495 transitions, 7436 flow, removed 48 selfloop flow, removed 2 redundant places. [2023-08-29 17:28:39,471 INFO L231 Difference]: Finished difference. Result has 158 places, 425 transitions, 6837 flow [2023-08-29 17:28:39,472 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=5396, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=384, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=105, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=250, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=6837, PETRI_PLACES=158, PETRI_TRANSITIONS=425} [2023-08-29 17:28:39,473 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 113 predicate places. [2023-08-29 17:28:39,473 INFO L495 AbstractCegarLoop]: Abstraction has has 158 places, 425 transitions, 6837 flow [2023-08-29 17:28:39,474 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 77.3) internal successors, (773), 10 states have internal predecessors, (773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:28:39,474 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:28:39,474 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:28:39,474 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-29 17:28:39,474 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-29 17:28:39,475 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:28:39,475 INFO L85 PathProgramCache]: Analyzing trace with hash 1212173786, now seen corresponding path program 1 times [2023-08-29 17:28:39,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:28:39,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530547568] [2023-08-29 17:28:39,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:28:39,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:28:39,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:28:39,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:28:39,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:28:39,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530547568] [2023-08-29 17:28:39,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1530547568] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:28:39,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:28:39,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 17:28:39,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141167327] [2023-08-29 17:28:39,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:28:39,754 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 17:28:39,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:28:39,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 17:28:39,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-08-29 17:28:40,071 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 149 [2023-08-29 17:28:40,072 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 158 places, 425 transitions, 6837 flow. Second operand has 10 states, 10 states have (on average 67.8) internal successors, (678), 10 states have internal predecessors, (678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:28:40,072 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:28:40,072 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 149 [2023-08-29 17:28:40,072 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:28:41,105 INFO L130 PetriNetUnfolder]: 1710/3768 cut-off events. [2023-08-29 17:28:41,105 INFO L131 PetriNetUnfolder]: For 40498/40556 co-relation queries the response was YES. [2023-08-29 17:28:41,122 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21365 conditions, 3768 events. 1710/3768 cut-off events. For 40498/40556 co-relation queries the response was YES. Maximal size of possible extension queue 163. Compared 26646 event pairs, 355 based on Foata normal form. 23/3731 useless extension candidates. Maximal degree in co-relation 21300. Up to 2593 conditions per place. [2023-08-29 17:28:41,146 INFO L137 encePairwiseOnDemand]: 127/149 looper letters, 407 selfloop transitions, 230 changer transitions 0/648 dead transitions. [2023-08-29 17:28:41,146 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 167 places, 648 transitions, 9881 flow [2023-08-29 17:28:41,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-29 17:28:41,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-29 17:28:41,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 820 transitions. [2023-08-29 17:28:41,150 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5503355704697986 [2023-08-29 17:28:41,150 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 820 transitions. [2023-08-29 17:28:41,150 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 820 transitions. [2023-08-29 17:28:41,150 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:28:41,151 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 820 transitions. [2023-08-29 17:28:41,152 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 82.0) internal successors, (820), 10 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:28:41,155 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 149.0) internal successors, (1639), 11 states have internal predecessors, (1639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:28:41,155 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 149.0) internal successors, (1639), 11 states have internal predecessors, (1639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:28:41,155 INFO L175 Difference]: Start difference. First operand has 158 places, 425 transitions, 6837 flow. Second operand 10 states and 820 transitions. [2023-08-29 17:28:41,155 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 167 places, 648 transitions, 9881 flow [2023-08-29 17:28:41,348 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 163 places, 648 transitions, 9746 flow, removed 44 selfloop flow, removed 4 redundant places. [2023-08-29 17:28:41,358 INFO L231 Difference]: Finished difference. Result has 169 places, 509 transitions, 8285 flow [2023-08-29 17:28:41,359 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=6702, PETRI_DIFFERENCE_MINUEND_PLACES=154, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=425, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=159, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=222, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=8285, PETRI_PLACES=169, PETRI_TRANSITIONS=509} [2023-08-29 17:28:41,359 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 124 predicate places. [2023-08-29 17:28:41,359 INFO L495 AbstractCegarLoop]: Abstraction has has 169 places, 509 transitions, 8285 flow [2023-08-29 17:28:41,360 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 67.8) internal successors, (678), 10 states have internal predecessors, (678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:28:41,360 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:28:41,360 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:28:41,360 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-29 17:28:41,361 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-29 17:28:41,361 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:28:41,361 INFO L85 PathProgramCache]: Analyzing trace with hash -1244559529, now seen corresponding path program 2 times [2023-08-29 17:28:41,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:28:41,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914963304] [2023-08-29 17:28:41,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:28:41,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:28:41,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:28:41,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:28:41,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:28:41,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914963304] [2023-08-29 17:28:41,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1914963304] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:28:41,694 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:28:41,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 17:28:41,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316895943] [2023-08-29 17:28:41,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:28:41,697 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 17:28:41,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:28:41,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 17:28:41,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-08-29 17:28:42,012 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 149 [2023-08-29 17:28:42,012 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 169 places, 509 transitions, 8285 flow. Second operand has 10 states, 10 states have (on average 77.3) internal successors, (773), 10 states have internal predecessors, (773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:28:42,012 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:28:42,013 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 149 [2023-08-29 17:28:42,013 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:28:42,785 INFO L130 PetriNetUnfolder]: 1392/3270 cut-off events. [2023-08-29 17:28:42,785 INFO L131 PetriNetUnfolder]: For 41898/42000 co-relation queries the response was YES. [2023-08-29 17:28:42,799 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19372 conditions, 3270 events. 1392/3270 cut-off events. For 41898/42000 co-relation queries the response was YES. Maximal size of possible extension queue 168. Compared 24229 event pairs, 134 based on Foata normal form. 28/3234 useless extension candidates. Maximal degree in co-relation 19302. Up to 2060 conditions per place. [2023-08-29 17:28:42,815 INFO L137 encePairwiseOnDemand]: 135/149 looper letters, 299 selfloop transitions, 154 changer transitions 0/589 dead transitions. [2023-08-29 17:28:42,816 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 177 places, 589 transitions, 10106 flow [2023-08-29 17:28:42,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-29 17:28:42,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-29 17:28:42,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 774 transitions. [2023-08-29 17:28:42,819 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5771812080536913 [2023-08-29 17:28:42,819 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 774 transitions. [2023-08-29 17:28:42,819 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 774 transitions. [2023-08-29 17:28:42,820 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:28:42,820 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 774 transitions. [2023-08-29 17:28:42,823 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 86.0) internal successors, (774), 9 states have internal predecessors, (774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:28:42,825 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 149.0) internal successors, (1490), 10 states have internal predecessors, (1490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:28:42,825 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 149.0) internal successors, (1490), 10 states have internal predecessors, (1490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:28:42,826 INFO L175 Difference]: Start difference. First operand has 169 places, 509 transitions, 8285 flow. Second operand 9 states and 774 transitions. [2023-08-29 17:28:42,826 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 177 places, 589 transitions, 10106 flow [2023-08-29 17:28:42,988 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 176 places, 589 transitions, 10067 flow, removed 19 selfloop flow, removed 1 redundant places. [2023-08-29 17:28:42,997 INFO L231 Difference]: Finished difference. Result has 179 places, 532 transitions, 9286 flow [2023-08-29 17:28:42,998 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=8252, PETRI_DIFFERENCE_MINUEND_PLACES=168, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=509, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=131, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=366, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=9286, PETRI_PLACES=179, PETRI_TRANSITIONS=532} [2023-08-29 17:28:42,998 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 134 predicate places. [2023-08-29 17:28:42,999 INFO L495 AbstractCegarLoop]: Abstraction has has 179 places, 532 transitions, 9286 flow [2023-08-29 17:28:42,999 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 77.3) internal successors, (773), 10 states have internal predecessors, (773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:28:42,999 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:28:42,999 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:28:43,000 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-29 17:28:43,000 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-29 17:28:43,000 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:28:43,000 INFO L85 PathProgramCache]: Analyzing trace with hash 759309596, now seen corresponding path program 6 times [2023-08-29 17:28:43,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:28:43,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920338383] [2023-08-29 17:28:43,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:28:43,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:28:43,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:28:43,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:28:43,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:28:43,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920338383] [2023-08-29 17:28:43,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1920338383] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:28:43,302 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:28:43,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 17:28:43,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440666952] [2023-08-29 17:28:43,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:28:43,303 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 17:28:43,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:28:43,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 17:28:43,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-08-29 17:28:43,683 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 149 [2023-08-29 17:28:43,684 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 179 places, 532 transitions, 9286 flow. Second operand has 10 states, 10 states have (on average 77.3) internal successors, (773), 10 states have internal predecessors, (773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:28:43,684 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:28:43,684 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 149 [2023-08-29 17:28:43,684 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:28:44,568 INFO L130 PetriNetUnfolder]: 1435/3366 cut-off events. [2023-08-29 17:28:44,568 INFO L131 PetriNetUnfolder]: For 55172/55378 co-relation queries the response was YES. [2023-08-29 17:28:44,582 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21038 conditions, 3366 events. 1435/3366 cut-off events. For 55172/55378 co-relation queries the response was YES. Maximal size of possible extension queue 174. Compared 25118 event pairs, 140 based on Foata normal form. 47/3337 useless extension candidates. Maximal degree in co-relation 20964. Up to 1781 conditions per place. [2023-08-29 17:28:44,598 INFO L137 encePairwiseOnDemand]: 135/149 looper letters, 356 selfloop transitions, 169 changer transitions 0/637 dead transitions. [2023-08-29 17:28:44,598 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 187 places, 637 transitions, 11646 flow [2023-08-29 17:28:44,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-29 17:28:44,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-29 17:28:44,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 868 transitions. [2023-08-29 17:28:44,601 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5825503355704698 [2023-08-29 17:28:44,601 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 868 transitions. [2023-08-29 17:28:44,601 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 868 transitions. [2023-08-29 17:28:44,602 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:28:44,602 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 868 transitions. [2023-08-29 17:28:44,603 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 86.8) internal successors, (868), 10 states have internal predecessors, (868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:28:44,605 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 149.0) internal successors, (1639), 11 states have internal predecessors, (1639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:28:44,606 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 149.0) internal successors, (1639), 11 states have internal predecessors, (1639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:28:44,606 INFO L175 Difference]: Start difference. First operand has 179 places, 532 transitions, 9286 flow. Second operand 10 states and 868 transitions. [2023-08-29 17:28:44,606 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 187 places, 637 transitions, 11646 flow [2023-08-29 17:28:44,807 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 180 places, 637 transitions, 11440 flow, removed 3 selfloop flow, removed 7 redundant places. [2023-08-29 17:28:44,818 INFO L231 Difference]: Finished difference. Result has 186 places, 561 transitions, 10524 flow [2023-08-29 17:28:44,819 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=9087, PETRI_DIFFERENCE_MINUEND_PLACES=171, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=531, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=139, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=372, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=10524, PETRI_PLACES=186, PETRI_TRANSITIONS=561} [2023-08-29 17:28:44,820 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 141 predicate places. [2023-08-29 17:28:44,820 INFO L495 AbstractCegarLoop]: Abstraction has has 186 places, 561 transitions, 10524 flow [2023-08-29 17:28:44,820 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 77.3) internal successors, (773), 10 states have internal predecessors, (773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:28:44,820 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:28:44,821 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:28:44,821 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-29 17:28:44,821 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-29 17:28:44,821 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:28:44,821 INFO L85 PathProgramCache]: Analyzing trace with hash -629270941, now seen corresponding path program 3 times [2023-08-29 17:28:44,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:28:44,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711010146] [2023-08-29 17:28:44,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:28:44,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:28:44,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:28:45,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:28:45,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:28:45,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711010146] [2023-08-29 17:28:45,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1711010146] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:28:45,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:28:45,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 17:28:45,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742760331] [2023-08-29 17:28:45,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:28:45,144 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 17:28:45,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:28:45,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 17:28:45,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-08-29 17:28:45,501 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 149 [2023-08-29 17:28:45,502 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 186 places, 561 transitions, 10524 flow. Second operand has 10 states, 10 states have (on average 77.3) internal successors, (773), 10 states have internal predecessors, (773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:28:45,502 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:28:45,502 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 149 [2023-08-29 17:28:45,502 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:28:46,403 INFO L130 PetriNetUnfolder]: 1522/3541 cut-off events. [2023-08-29 17:28:46,403 INFO L131 PetriNetUnfolder]: For 60321/60452 co-relation queries the response was YES. [2023-08-29 17:28:46,415 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22529 conditions, 3541 events. 1522/3541 cut-off events. For 60321/60452 co-relation queries the response was YES. Maximal size of possible extension queue 182. Compared 26573 event pairs, 194 based on Foata normal form. 43/3513 useless extension candidates. Maximal degree in co-relation 22451. Up to 2188 conditions per place. [2023-08-29 17:28:46,428 INFO L137 encePairwiseOnDemand]: 135/149 looper letters, 335 selfloop transitions, 190 changer transitions 0/663 dead transitions. [2023-08-29 17:28:46,428 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 195 places, 663 transitions, 12834 flow [2023-08-29 17:28:46,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-29 17:28:46,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-29 17:28:46,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 859 transitions. [2023-08-29 17:28:46,431 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5765100671140939 [2023-08-29 17:28:46,431 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 859 transitions. [2023-08-29 17:28:46,431 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 859 transitions. [2023-08-29 17:28:46,431 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:28:46,432 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 859 transitions. [2023-08-29 17:28:46,433 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 85.9) internal successors, (859), 10 states have internal predecessors, (859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:28:46,435 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 149.0) internal successors, (1639), 11 states have internal predecessors, (1639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:28:46,436 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 149.0) internal successors, (1639), 11 states have internal predecessors, (1639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:28:46,436 INFO L175 Difference]: Start difference. First operand has 186 places, 561 transitions, 10524 flow. Second operand 10 states and 859 transitions. [2023-08-29 17:28:46,436 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 195 places, 663 transitions, 12834 flow [2023-08-29 17:28:46,627 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 191 places, 663 transitions, 12650 flow, removed 54 selfloop flow, removed 4 redundant places. [2023-08-29 17:28:46,636 INFO L231 Difference]: Finished difference. Result has 196 places, 595 transitions, 11820 flow [2023-08-29 17:28:46,636 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=10343, PETRI_DIFFERENCE_MINUEND_PLACES=182, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=561, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=156, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=383, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=11820, PETRI_PLACES=196, PETRI_TRANSITIONS=595} [2023-08-29 17:28:46,637 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 151 predicate places. [2023-08-29 17:28:46,637 INFO L495 AbstractCegarLoop]: Abstraction has has 196 places, 595 transitions, 11820 flow [2023-08-29 17:28:46,637 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 77.3) internal successors, (773), 10 states have internal predecessors, (773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:28:46,637 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:28:46,637 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:28:46,637 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-29 17:28:46,638 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-29 17:28:46,638 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:28:46,638 INFO L85 PathProgramCache]: Analyzing trace with hash -1152685874, now seen corresponding path program 1 times [2023-08-29 17:28:46,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:28:46,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449187759] [2023-08-29 17:28:46,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:28:46,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:28:46,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:28:46,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:28:46,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:28:46,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449187759] [2023-08-29 17:28:46,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1449187759] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:28:46,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:28:46,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 17:28:46,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299274916] [2023-08-29 17:28:46,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:28:46,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 17:28:46,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:28:46,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 17:28:46,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-08-29 17:28:47,125 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 149 [2023-08-29 17:28:47,126 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 196 places, 595 transitions, 11820 flow. Second operand has 10 states, 10 states have (on average 67.8) internal successors, (678), 10 states have internal predecessors, (678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:28:47,126 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:28:47,126 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 149 [2023-08-29 17:28:47,126 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:28:48,251 INFO L130 PetriNetUnfolder]: 2054/4522 cut-off events. [2023-08-29 17:28:48,251 INFO L131 PetriNetUnfolder]: For 77374/77418 co-relation queries the response was YES. [2023-08-29 17:28:48,270 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29662 conditions, 4522 events. 2054/4522 cut-off events. For 77374/77418 co-relation queries the response was YES. Maximal size of possible extension queue 204. Compared 33508 event pairs, 464 based on Foata normal form. 28/4476 useless extension candidates. Maximal degree in co-relation 29580. Up to 3199 conditions per place. [2023-08-29 17:28:48,285 INFO L137 encePairwiseOnDemand]: 131/149 looper letters, 499 selfloop transitions, 308 changer transitions 0/823 dead transitions. [2023-08-29 17:28:48,285 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 205 places, 823 transitions, 16406 flow [2023-08-29 17:28:48,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-29 17:28:48,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-29 17:28:48,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 797 transitions. [2023-08-29 17:28:48,295 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5348993288590604 [2023-08-29 17:28:48,295 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 797 transitions. [2023-08-29 17:28:48,295 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 797 transitions. [2023-08-29 17:28:48,297 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:28:48,297 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 797 transitions. [2023-08-29 17:28:48,298 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 79.7) internal successors, (797), 10 states have internal predecessors, (797), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:28:48,300 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 149.0) internal successors, (1639), 11 states have internal predecessors, (1639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:28:48,300 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 149.0) internal successors, (1639), 11 states have internal predecessors, (1639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:28:48,300 INFO L175 Difference]: Start difference. First operand has 196 places, 595 transitions, 11820 flow. Second operand 10 states and 797 transitions. [2023-08-29 17:28:48,301 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 205 places, 823 transitions, 16406 flow [2023-08-29 17:28:48,536 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 201 places, 823 transitions, 16298 flow, removed 21 selfloop flow, removed 4 redundant places. [2023-08-29 17:28:48,548 INFO L231 Difference]: Finished difference. Result has 207 places, 689 transitions, 14279 flow [2023-08-29 17:28:48,548 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=11712, PETRI_DIFFERENCE_MINUEND_PLACES=192, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=595, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=225, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=323, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=14279, PETRI_PLACES=207, PETRI_TRANSITIONS=689} [2023-08-29 17:28:48,548 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 162 predicate places. [2023-08-29 17:28:48,549 INFO L495 AbstractCegarLoop]: Abstraction has has 207 places, 689 transitions, 14279 flow [2023-08-29 17:28:48,549 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 67.8) internal successors, (678), 10 states have internal predecessors, (678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:28:48,549 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:28:48,549 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:28:48,549 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-08-29 17:28:48,549 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-29 17:28:48,549 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:28:48,550 INFO L85 PathProgramCache]: Analyzing trace with hash 274183847, now seen corresponding path program 4 times [2023-08-29 17:28:48,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:28:48,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720186983] [2023-08-29 17:28:48,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:28:48,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:28:48,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:28:48,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:28:48,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:28:48,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720186983] [2023-08-29 17:28:48,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720186983] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:28:48,827 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:28:48,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 17:28:48,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877844274] [2023-08-29 17:28:48,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:28:48,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 17:28:48,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:28:48,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 17:28:48,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-08-29 17:28:49,237 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 149 [2023-08-29 17:28:49,238 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 207 places, 689 transitions, 14279 flow. Second operand has 10 states, 10 states have (on average 77.3) internal successors, (773), 10 states have internal predecessors, (773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:28:49,238 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:28:49,238 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 149 [2023-08-29 17:28:49,238 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:28:50,334 INFO L130 PetriNetUnfolder]: 1690/3918 cut-off events. [2023-08-29 17:28:50,334 INFO L131 PetriNetUnfolder]: For 77143/77290 co-relation queries the response was YES. [2023-08-29 17:28:50,354 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27137 conditions, 3918 events. 1690/3918 cut-off events. For 77143/77290 co-relation queries the response was YES. Maximal size of possible extension queue 200. Compared 30037 event pairs, 148 based on Foata normal form. 54/3896 useless extension candidates. Maximal degree in co-relation 27049. Up to 1244 conditions per place. [2023-08-29 17:28:50,373 INFO L137 encePairwiseOnDemand]: 135/149 looper letters, 583 selfloop transitions, 148 changer transitions 0/893 dead transitions. [2023-08-29 17:28:50,373 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 217 places, 893 transitions, 18024 flow [2023-08-29 17:28:50,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-29 17:28:50,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-29 17:28:50,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 944 transitions. [2023-08-29 17:28:50,375 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5759609517998779 [2023-08-29 17:28:50,375 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 944 transitions. [2023-08-29 17:28:50,375 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 944 transitions. [2023-08-29 17:28:50,376 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:28:50,376 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 944 transitions. [2023-08-29 17:28:50,377 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 85.81818181818181) internal successors, (944), 11 states have internal predecessors, (944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:28:50,379 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 149.0) internal successors, (1788), 12 states have internal predecessors, (1788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:28:50,379 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 149.0) internal successors, (1788), 12 states have internal predecessors, (1788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:28:50,379 INFO L175 Difference]: Start difference. First operand has 207 places, 689 transitions, 14279 flow. Second operand 11 states and 944 transitions. [2023-08-29 17:28:50,380 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 217 places, 893 transitions, 18024 flow [2023-08-29 17:28:50,729 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 215 places, 893 transitions, 17957 flow, removed 28 selfloop flow, removed 2 redundant places. [2023-08-29 17:28:50,741 INFO L231 Difference]: Finished difference. Result has 222 places, 719 transitions, 15283 flow [2023-08-29 17:28:50,741 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=14222, PETRI_DIFFERENCE_MINUEND_PLACES=205, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=689, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=118, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=542, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=15283, PETRI_PLACES=222, PETRI_TRANSITIONS=719} [2023-08-29 17:28:50,741 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 177 predicate places. [2023-08-29 17:28:50,742 INFO L495 AbstractCegarLoop]: Abstraction has has 222 places, 719 transitions, 15283 flow [2023-08-29 17:28:50,742 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 77.3) internal successors, (773), 10 states have internal predecessors, (773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:28:50,742 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:28:50,742 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:28:50,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-08-29 17:28:50,742 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-29 17:28:50,743 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:28:50,743 INFO L85 PathProgramCache]: Analyzing trace with hash -523263794, now seen corresponding path program 2 times [2023-08-29 17:28:50,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:28:50,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243844271] [2023-08-29 17:28:50,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:28:50,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:28:50,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:28:50,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:28:50,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:28:50,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243844271] [2023-08-29 17:28:50,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1243844271] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:28:50,958 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:28:50,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 17:28:50,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478016549] [2023-08-29 17:28:50,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:28:50,959 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 17:28:50,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:28:50,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 17:28:50,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-08-29 17:28:51,255 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 149 [2023-08-29 17:28:51,256 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 222 places, 719 transitions, 15283 flow. Second operand has 10 states, 10 states have (on average 67.8) internal successors, (678), 10 states have internal predecessors, (678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:28:51,256 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:28:51,256 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 149 [2023-08-29 17:28:51,256 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:28:52,558 INFO L130 PetriNetUnfolder]: 2069/4526 cut-off events. [2023-08-29 17:28:52,558 INFO L131 PetriNetUnfolder]: For 90757/90811 co-relation queries the response was YES. [2023-08-29 17:28:52,585 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32560 conditions, 4526 events. 2069/4526 cut-off events. For 90757/90811 co-relation queries the response was YES. Maximal size of possible extension queue 199. Compared 33234 event pairs, 437 based on Foata normal form. 23/4483 useless extension candidates. Maximal degree in co-relation 32465. Up to 1759 conditions per place. [2023-08-29 17:28:52,602 INFO L137 encePairwiseOnDemand]: 127/149 looper letters, 744 selfloop transitions, 211 changer transitions 0/968 dead transitions. [2023-08-29 17:28:52,602 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 231 places, 968 transitions, 19951 flow [2023-08-29 17:28:52,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-29 17:28:52,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-29 17:28:52,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 837 transitions. [2023-08-29 17:28:52,605 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.561744966442953 [2023-08-29 17:28:52,605 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 837 transitions. [2023-08-29 17:28:52,605 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 837 transitions. [2023-08-29 17:28:52,606 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:28:52,606 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 837 transitions. [2023-08-29 17:28:52,607 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 83.7) internal successors, (837), 10 states have internal predecessors, (837), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:28:52,609 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 149.0) internal successors, (1639), 11 states have internal predecessors, (1639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:28:52,609 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 149.0) internal successors, (1639), 11 states have internal predecessors, (1639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:28:52,609 INFO L175 Difference]: Start difference. First operand has 222 places, 719 transitions, 15283 flow. Second operand 10 states and 837 transitions. [2023-08-29 17:28:52,610 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 231 places, 968 transitions, 19951 flow [2023-08-29 17:28:53,048 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 230 places, 968 transitions, 19754 flow, removed 98 selfloop flow, removed 1 redundant places. [2023-08-29 17:28:53,062 INFO L231 Difference]: Finished difference. Result has 236 places, 794 transitions, 16822 flow [2023-08-29 17:28:53,063 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=15148, PETRI_DIFFERENCE_MINUEND_PLACES=221, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=719, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=139, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=517, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=16822, PETRI_PLACES=236, PETRI_TRANSITIONS=794} [2023-08-29 17:28:53,063 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 191 predicate places. [2023-08-29 17:28:53,063 INFO L495 AbstractCegarLoop]: Abstraction has has 236 places, 794 transitions, 16822 flow [2023-08-29 17:28:53,063 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 67.8) internal successors, (678), 10 states have internal predecessors, (678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:28:53,064 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:28:53,064 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:28:53,064 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-08-29 17:28:53,064 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-29 17:28:53,064 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:28:53,064 INFO L85 PathProgramCache]: Analyzing trace with hash -285610316, now seen corresponding path program 2 times [2023-08-29 17:28:53,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:28:53,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254957869] [2023-08-29 17:28:53,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:28:53,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:28:53,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:28:53,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:28:53,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:28:53,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254957869] [2023-08-29 17:28:53,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [254957869] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:28:53,276 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:28:53,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 17:28:53,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54235115] [2023-08-29 17:28:53,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:28:53,277 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 17:28:53,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:28:53,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 17:28:53,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-08-29 17:28:53,579 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 149 [2023-08-29 17:28:53,580 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 236 places, 794 transitions, 16822 flow. Second operand has 10 states, 10 states have (on average 67.8) internal successors, (678), 10 states have internal predecessors, (678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:28:53,580 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:28:53,580 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 149 [2023-08-29 17:28:53,580 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:28:54,990 INFO L130 PetriNetUnfolder]: 2006/4392 cut-off events. [2023-08-29 17:28:54,990 INFO L131 PetriNetUnfolder]: For 96536/96572 co-relation queries the response was YES. [2023-08-29 17:28:55,013 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32930 conditions, 4392 events. 2006/4392 cut-off events. For 96536/96572 co-relation queries the response was YES. Maximal size of possible extension queue 195. Compared 32132 event pairs, 362 based on Foata normal form. 50/4377 useless extension candidates. Maximal degree in co-relation 32828. Up to 1744 conditions per place. [2023-08-29 17:28:55,028 INFO L137 encePairwiseOnDemand]: 131/149 looper letters, 843 selfloop transitions, 160 changer transitions 0/1019 dead transitions. [2023-08-29 17:28:55,028 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 246 places, 1019 transitions, 22081 flow [2023-08-29 17:28:55,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-29 17:28:55,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-29 17:28:55,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 873 transitions. [2023-08-29 17:28:55,029 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5326418547895058 [2023-08-29 17:28:55,029 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 873 transitions. [2023-08-29 17:28:55,029 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 873 transitions. [2023-08-29 17:28:55,030 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:28:55,030 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 873 transitions. [2023-08-29 17:28:55,031 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 79.36363636363636) internal successors, (873), 11 states have internal predecessors, (873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:28:55,032 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 149.0) internal successors, (1788), 12 states have internal predecessors, (1788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:28:55,033 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 149.0) internal successors, (1788), 12 states have internal predecessors, (1788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:28:55,033 INFO L175 Difference]: Start difference. First operand has 236 places, 794 transitions, 16822 flow. Second operand 11 states and 873 transitions. [2023-08-29 17:28:55,033 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 246 places, 1019 transitions, 22081 flow [2023-08-29 17:28:55,414 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 244 places, 1019 transitions, 21942 flow, removed 65 selfloop flow, removed 2 redundant places. [2023-08-29 17:28:55,429 INFO L231 Difference]: Finished difference. Result has 250 places, 833 transitions, 17927 flow [2023-08-29 17:28:55,430 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=16729, PETRI_DIFFERENCE_MINUEND_PLACES=234, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=794, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=122, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=637, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=17927, PETRI_PLACES=250, PETRI_TRANSITIONS=833} [2023-08-29 17:28:55,430 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 205 predicate places. [2023-08-29 17:28:55,430 INFO L495 AbstractCegarLoop]: Abstraction has has 250 places, 833 transitions, 17927 flow [2023-08-29 17:28:55,430 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 67.8) internal successors, (678), 10 states have internal predecessors, (678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:28:55,431 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:28:55,431 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:28:55,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-08-29 17:28:55,431 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-29 17:28:55,431 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:28:55,431 INFO L85 PathProgramCache]: Analyzing trace with hash 1199982051, now seen corresponding path program 5 times [2023-08-29 17:28:55,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:28:55,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95397867] [2023-08-29 17:28:55,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:28:55,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:28:55,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:28:55,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:28:55,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:28:55,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95397867] [2023-08-29 17:28:55,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [95397867] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:28:55,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:28:55,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 17:28:55,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958795739] [2023-08-29 17:28:55,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:28:55,680 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 17:28:55,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:28:55,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 17:28:55,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-08-29 17:28:56,007 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 149 [2023-08-29 17:28:56,008 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 250 places, 833 transitions, 17927 flow. Second operand has 10 states, 10 states have (on average 77.3) internal successors, (773), 10 states have internal predecessors, (773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:28:56,008 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:28:56,008 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 149 [2023-08-29 17:28:56,008 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:28:57,180 INFO L130 PetriNetUnfolder]: 1760/4023 cut-off events. [2023-08-29 17:28:57,181 INFO L131 PetriNetUnfolder]: For 103801/103945 co-relation queries the response was YES. [2023-08-29 17:28:57,205 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31910 conditions, 4023 events. 1760/4023 cut-off events. For 103801/103945 co-relation queries the response was YES. Maximal size of possible extension queue 206. Compared 30665 event pairs, 188 based on Foata normal form. 48/3993 useless extension candidates. Maximal degree in co-relation 31802. Up to 2485 conditions per place. [2023-08-29 17:28:57,220 INFO L137 encePairwiseOnDemand]: 135/149 looper letters, 540 selfloop transitions, 233 changer transitions 0/962 dead transitions. [2023-08-29 17:28:57,220 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 259 places, 962 transitions, 21488 flow [2023-08-29 17:28:57,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-29 17:28:57,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-29 17:28:57,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 861 transitions. [2023-08-29 17:28:57,221 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5778523489932886 [2023-08-29 17:28:57,221 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 861 transitions. [2023-08-29 17:28:57,221 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 861 transitions. [2023-08-29 17:28:57,222 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:28:57,222 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 861 transitions. [2023-08-29 17:28:57,222 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 86.1) internal successors, (861), 10 states have internal predecessors, (861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:28:57,224 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 149.0) internal successors, (1639), 11 states have internal predecessors, (1639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:28:57,224 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 149.0) internal successors, (1639), 11 states have internal predecessors, (1639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:28:57,224 INFO L175 Difference]: Start difference. First operand has 250 places, 833 transitions, 17927 flow. Second operand 10 states and 861 transitions. [2023-08-29 17:28:57,224 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 259 places, 962 transitions, 21488 flow [2023-08-29 17:28:57,658 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 256 places, 962 transitions, 21282 flow, removed 53 selfloop flow, removed 3 redundant places. [2023-08-29 17:28:57,672 INFO L231 Difference]: Finished difference. Result has 262 places, 878 transitions, 19854 flow [2023-08-29 17:28:57,673 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=17743, PETRI_DIFFERENCE_MINUEND_PLACES=247, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=833, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=189, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=612, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=19854, PETRI_PLACES=262, PETRI_TRANSITIONS=878} [2023-08-29 17:28:57,673 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 217 predicate places. [2023-08-29 17:28:57,674 INFO L495 AbstractCegarLoop]: Abstraction has has 262 places, 878 transitions, 19854 flow [2023-08-29 17:28:57,674 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 77.3) internal successors, (773), 10 states have internal predecessors, (773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:28:57,674 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:28:57,674 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:28:57,674 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-08-29 17:28:57,674 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-29 17:28:57,675 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:28:57,675 INFO L85 PathProgramCache]: Analyzing trace with hash 1194263780, now seen corresponding path program 3 times [2023-08-29 17:28:57,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:28:57,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523519856] [2023-08-29 17:28:57,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:28:57,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:28:57,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:28:57,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:28:57,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:28:57,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523519856] [2023-08-29 17:28:57,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [523519856] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:28:57,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:28:57,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 17:28:57,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611385014] [2023-08-29 17:28:57,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:28:57,899 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 17:28:57,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:28:57,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 17:28:57,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-08-29 17:28:58,105 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 149 [2023-08-29 17:28:58,105 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 262 places, 878 transitions, 19854 flow. Second operand has 10 states, 10 states have (on average 67.8) internal successors, (678), 10 states have internal predecessors, (678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:28:58,105 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:28:58,105 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 149 [2023-08-29 17:28:58,105 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:28:59,609 INFO L130 PetriNetUnfolder]: 2083/4547 cut-off events. [2023-08-29 17:28:59,609 INFO L131 PetriNetUnfolder]: For 118130/118176 co-relation queries the response was YES. [2023-08-29 17:28:59,630 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36418 conditions, 4547 events. 2083/4547 cut-off events. For 118130/118176 co-relation queries the response was YES. Maximal size of possible extension queue 204. Compared 33518 event pairs, 447 based on Foata normal form. 28/4512 useless extension candidates. Maximal degree in co-relation 36304. Up to 2142 conditions per place. [2023-08-29 17:28:59,645 INFO L137 encePairwiseOnDemand]: 131/149 looper letters, 842 selfloop transitions, 174 changer transitions 0/1032 dead transitions. [2023-08-29 17:28:59,646 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 271 places, 1032 transitions, 23870 flow [2023-08-29 17:28:59,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-29 17:28:59,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-29 17:28:59,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 805 transitions. [2023-08-29 17:28:59,647 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.540268456375839 [2023-08-29 17:28:59,647 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 805 transitions. [2023-08-29 17:28:59,647 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 805 transitions. [2023-08-29 17:28:59,647 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:28:59,647 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 805 transitions. [2023-08-29 17:28:59,648 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 80.5) internal successors, (805), 10 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:28:59,650 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 149.0) internal successors, (1639), 11 states have internal predecessors, (1639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:28:59,650 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 149.0) internal successors, (1639), 11 states have internal predecessors, (1639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:28:59,650 INFO L175 Difference]: Start difference. First operand has 262 places, 878 transitions, 19854 flow. Second operand 10 states and 805 transitions. [2023-08-29 17:28:59,650 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 271 places, 1032 transitions, 23870 flow [2023-08-29 17:29:00,270 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 268 places, 1032 transitions, 23672 flow, removed 70 selfloop flow, removed 3 redundant places. [2023-08-29 17:29:00,291 INFO L231 Difference]: Finished difference. Result has 272 places, 903 transitions, 20663 flow [2023-08-29 17:29:00,292 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=19668, PETRI_DIFFERENCE_MINUEND_PLACES=259, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=878, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=149, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=704, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=20663, PETRI_PLACES=272, PETRI_TRANSITIONS=903} [2023-08-29 17:29:00,293 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 227 predicate places. [2023-08-29 17:29:00,293 INFO L495 AbstractCegarLoop]: Abstraction has has 272 places, 903 transitions, 20663 flow [2023-08-29 17:29:00,294 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 67.8) internal successors, (678), 10 states have internal predecessors, (678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:29:00,294 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:29:00,295 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:29:00,295 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-08-29 17:29:00,295 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-29 17:29:00,295 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:29:00,296 INFO L85 PathProgramCache]: Analyzing trace with hash 364009928, now seen corresponding path program 3 times [2023-08-29 17:29:00,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:29:00,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823821364] [2023-08-29 17:29:00,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:29:00,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:29:00,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:29:00,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:29:00,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:29:00,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823821364] [2023-08-29 17:29:00,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1823821364] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:29:00,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:29:00,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 17:29:00,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563996149] [2023-08-29 17:29:00,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:29:00,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 17:29:00,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:29:00,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 17:29:00,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-08-29 17:29:00,712 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 149 [2023-08-29 17:29:00,713 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 272 places, 903 transitions, 20663 flow. Second operand has 10 states, 10 states have (on average 67.8) internal successors, (678), 10 states have internal predecessors, (678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:29:00,713 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:29:00,713 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 149 [2023-08-29 17:29:00,713 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:29:02,480 INFO L130 PetriNetUnfolder]: 2198/4759 cut-off events. [2023-08-29 17:29:02,480 INFO L131 PetriNetUnfolder]: For 127982/128015 co-relation queries the response was YES. [2023-08-29 17:29:02,514 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38781 conditions, 4759 events. 2198/4759 cut-off events. For 127982/128015 co-relation queries the response was YES. Maximal size of possible extension queue 208. Compared 34966 event pairs, 482 based on Foata normal form. 14/4699 useless extension candidates. Maximal degree in co-relation 38664. Up to 3606 conditions per place. [2023-08-29 17:29:02,533 INFO L137 encePairwiseOnDemand]: 127/149 looper letters, 565 selfloop transitions, 417 changer transitions 0/998 dead transitions. [2023-08-29 17:29:02,533 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 280 places, 998 transitions, 23786 flow [2023-08-29 17:29:02,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-29 17:29:02,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-29 17:29:02,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 741 transitions. [2023-08-29 17:29:02,534 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5525727069351231 [2023-08-29 17:29:02,534 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 741 transitions. [2023-08-29 17:29:02,534 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 741 transitions. [2023-08-29 17:29:02,535 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:29:02,535 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 741 transitions. [2023-08-29 17:29:02,536 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 82.33333333333333) internal successors, (741), 9 states have internal predecessors, (741), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:29:02,537 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 149.0) internal successors, (1490), 10 states have internal predecessors, (1490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:29:02,537 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 149.0) internal successors, (1490), 10 states have internal predecessors, (1490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:29:02,537 INFO L175 Difference]: Start difference. First operand has 272 places, 903 transitions, 20663 flow. Second operand 9 states and 741 transitions. [2023-08-29 17:29:02,537 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 280 places, 998 transitions, 23786 flow [2023-08-29 17:29:03,100 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 277 places, 998 transitions, 23539 flow, removed 78 selfloop flow, removed 3 redundant places. [2023-08-29 17:29:03,118 INFO L231 Difference]: Finished difference. Result has 280 places, 918 transitions, 22108 flow [2023-08-29 17:29:03,120 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=20459, PETRI_DIFFERENCE_MINUEND_PLACES=269, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=903, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=402, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=488, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=22108, PETRI_PLACES=280, PETRI_TRANSITIONS=918} [2023-08-29 17:29:03,120 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 235 predicate places. [2023-08-29 17:29:03,120 INFO L495 AbstractCegarLoop]: Abstraction has has 280 places, 918 transitions, 22108 flow [2023-08-29 17:29:03,120 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 67.8) internal successors, (678), 10 states have internal predecessors, (678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:29:03,121 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:29:03,121 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:29:03,121 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-08-29 17:29:03,121 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-29 17:29:03,121 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:29:03,121 INFO L85 PathProgramCache]: Analyzing trace with hash 2022772808, now seen corresponding path program 4 times [2023-08-29 17:29:03,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:29:03,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913413990] [2023-08-29 17:29:03,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:29:03,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:29:03,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:29:03,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:29:03,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:29:03,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913413990] [2023-08-29 17:29:03,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [913413990] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:29:03,329 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:29:03,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 17:29:03,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184047884] [2023-08-29 17:29:03,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:29:03,329 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 17:29:03,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:29:03,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 17:29:03,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-08-29 17:29:03,625 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 149 [2023-08-29 17:29:03,625 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 280 places, 918 transitions, 22108 flow. Second operand has 10 states, 10 states have (on average 67.8) internal successors, (678), 10 states have internal predecessors, (678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:29:03,625 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:29:03,625 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 149 [2023-08-29 17:29:03,625 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:29:05,383 INFO L130 PetriNetUnfolder]: 2280/4924 cut-off events. [2023-08-29 17:29:05,383 INFO L131 PetriNetUnfolder]: For 138997/139030 co-relation queries the response was YES. [2023-08-29 17:29:05,417 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41579 conditions, 4924 events. 2280/4924 cut-off events. For 138997/139030 co-relation queries the response was YES. Maximal size of possible extension queue 215. Compared 36425 event pairs, 469 based on Foata normal form. 25/4882 useless extension candidates. Maximal degree in co-relation 41460. Up to 3516 conditions per place. [2023-08-29 17:29:05,436 INFO L137 encePairwiseOnDemand]: 127/149 looper letters, 648 selfloop transitions, 433 changer transitions 0/1097 dead transitions. [2023-08-29 17:29:05,436 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 289 places, 1097 transitions, 26717 flow [2023-08-29 17:29:05,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-29 17:29:05,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-29 17:29:05,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 822 transitions. [2023-08-29 17:29:05,437 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5516778523489932 [2023-08-29 17:29:05,438 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 822 transitions. [2023-08-29 17:29:05,438 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 822 transitions. [2023-08-29 17:29:05,438 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:29:05,438 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 822 transitions. [2023-08-29 17:29:05,439 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 82.2) internal successors, (822), 10 states have internal predecessors, (822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:29:05,440 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 149.0) internal successors, (1639), 11 states have internal predecessors, (1639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:29:05,440 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 149.0) internal successors, (1639), 11 states have internal predecessors, (1639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:29:05,440 INFO L175 Difference]: Start difference. First operand has 280 places, 918 transitions, 22108 flow. Second operand 10 states and 822 transitions. [2023-08-29 17:29:05,440 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 289 places, 1097 transitions, 26717 flow [2023-08-29 17:29:06,090 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 285 places, 1097 transitions, 26454 flow, removed 8 selfloop flow, removed 4 redundant places. [2023-08-29 17:29:06,108 INFO L231 Difference]: Finished difference. Result has 290 places, 968 transitions, 24025 flow [2023-08-29 17:29:06,109 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=21849, PETRI_DIFFERENCE_MINUEND_PLACES=276, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=918, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=384, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=490, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=24025, PETRI_PLACES=290, PETRI_TRANSITIONS=968} [2023-08-29 17:29:06,109 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 245 predicate places. [2023-08-29 17:29:06,109 INFO L495 AbstractCegarLoop]: Abstraction has has 290 places, 968 transitions, 24025 flow [2023-08-29 17:29:06,110 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 67.8) internal successors, (678), 10 states have internal predecessors, (678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:29:06,110 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:29:06,110 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:29:06,110 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-08-29 17:29:06,110 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-29 17:29:06,111 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:29:06,111 INFO L85 PathProgramCache]: Analyzing trace with hash 414952538, now seen corresponding path program 5 times [2023-08-29 17:29:06,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:29:06,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461812268] [2023-08-29 17:29:06,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:29:06,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:29:06,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:29:06,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:29:06,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:29:06,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461812268] [2023-08-29 17:29:06,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [461812268] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:29:06,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:29:06,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 17:29:06,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655040729] [2023-08-29 17:29:06,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:29:06,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 17:29:06,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:29:06,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 17:29:06,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-08-29 17:29:06,634 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 149 [2023-08-29 17:29:06,634 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 290 places, 968 transitions, 24025 flow. Second operand has 10 states, 10 states have (on average 67.8) internal successors, (678), 10 states have internal predecessors, (678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:29:06,634 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:29:06,634 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 149 [2023-08-29 17:29:06,634 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:29:08,491 INFO L130 PetriNetUnfolder]: 2300/4964 cut-off events. [2023-08-29 17:29:08,491 INFO L131 PetriNetUnfolder]: For 150165/150198 co-relation queries the response was YES. [2023-08-29 17:29:08,526 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43719 conditions, 4964 events. 2300/4964 cut-off events. For 150165/150198 co-relation queries the response was YES. Maximal size of possible extension queue 217. Compared 36762 event pairs, 473 based on Foata normal form. 25/4917 useless extension candidates. Maximal degree in co-relation 43595. Up to 3684 conditions per place. [2023-08-29 17:29:08,545 INFO L137 encePairwiseOnDemand]: 127/149 looper letters, 625 selfloop transitions, 458 changer transitions 0/1099 dead transitions. [2023-08-29 17:29:08,546 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 299 places, 1099 transitions, 27936 flow [2023-08-29 17:29:08,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-29 17:29:08,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-29 17:29:08,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 822 transitions. [2023-08-29 17:29:08,547 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5516778523489932 [2023-08-29 17:29:08,547 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 822 transitions. [2023-08-29 17:29:08,547 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 822 transitions. [2023-08-29 17:29:08,547 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:29:08,547 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 822 transitions. [2023-08-29 17:29:08,548 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 82.2) internal successors, (822), 10 states have internal predecessors, (822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:29:08,549 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 149.0) internal successors, (1639), 11 states have internal predecessors, (1639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:29:08,549 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 149.0) internal successors, (1639), 11 states have internal predecessors, (1639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:29:08,549 INFO L175 Difference]: Start difference. First operand has 290 places, 968 transitions, 24025 flow. Second operand 10 states and 822 transitions. [2023-08-29 17:29:08,549 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 299 places, 1099 transitions, 27936 flow [2023-08-29 17:29:09,321 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 296 places, 1099 transitions, 27653 flow, removed 52 selfloop flow, removed 3 redundant places. [2023-08-29 17:29:09,341 INFO L231 Difference]: Finished difference. Result has 300 places, 1001 transitions, 25683 flow [2023-08-29 17:29:09,342 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=23742, PETRI_DIFFERENCE_MINUEND_PLACES=287, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=968, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=426, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=514, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=25683, PETRI_PLACES=300, PETRI_TRANSITIONS=1001} [2023-08-29 17:29:09,342 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 255 predicate places. [2023-08-29 17:29:09,342 INFO L495 AbstractCegarLoop]: Abstraction has has 300 places, 1001 transitions, 25683 flow [2023-08-29 17:29:09,342 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 67.8) internal successors, (678), 10 states have internal predecessors, (678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:29:09,342 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:29:09,343 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:29:09,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-08-29 17:29:09,343 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-29 17:29:09,343 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:29:09,343 INFO L85 PathProgramCache]: Analyzing trace with hash -1573861707, now seen corresponding path program 6 times [2023-08-29 17:29:09,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:29:09,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715421029] [2023-08-29 17:29:09,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:29:09,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:29:09,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:29:09,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:29:09,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:29:09,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715421029] [2023-08-29 17:29:09,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [715421029] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:29:09,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:29:09,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 17:29:09,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238828164] [2023-08-29 17:29:09,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:29:09,594 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 17:29:09,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:29:09,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 17:29:09,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-08-29 17:29:09,909 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 149 [2023-08-29 17:29:09,910 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 300 places, 1001 transitions, 25683 flow. Second operand has 10 states, 10 states have (on average 77.3) internal successors, (773), 10 states have internal predecessors, (773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:29:09,910 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:29:09,910 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 149 [2023-08-29 17:29:09,910 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:29:11,532 INFO L130 PetriNetUnfolder]: 1966/4400 cut-off events. [2023-08-29 17:29:11,532 INFO L131 PetriNetUnfolder]: For 159361/159503 co-relation queries the response was YES. [2023-08-29 17:29:11,557 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41274 conditions, 4400 events. 1966/4400 cut-off events. For 159361/159503 co-relation queries the response was YES. Maximal size of possible extension queue 222. Compared 33651 event pairs, 208 based on Foata normal form. 47/4365 useless extension candidates. Maximal degree in co-relation 41146. Up to 2660 conditions per place. [2023-08-29 17:29:11,573 INFO L137 encePairwiseOnDemand]: 135/149 looper letters, 652 selfloop transitions, 278 changer transitions 0/1131 dead transitions. [2023-08-29 17:29:11,573 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 308 places, 1131 transitions, 30332 flow [2023-08-29 17:29:11,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-29 17:29:11,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-29 17:29:11,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 861 transitions. [2023-08-29 17:29:11,574 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5778523489932886 [2023-08-29 17:29:11,574 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 861 transitions. [2023-08-29 17:29:11,574 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 861 transitions. [2023-08-29 17:29:11,574 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:29:11,574 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 861 transitions. [2023-08-29 17:29:11,575 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 86.1) internal successors, (861), 10 states have internal predecessors, (861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:29:11,576 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 149.0) internal successors, (1639), 11 states have internal predecessors, (1639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:29:11,576 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 149.0) internal successors, (1639), 11 states have internal predecessors, (1639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:29:11,576 INFO L175 Difference]: Start difference. First operand has 300 places, 1001 transitions, 25683 flow. Second operand 10 states and 861 transitions. [2023-08-29 17:29:11,576 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 308 places, 1131 transitions, 30332 flow [2023-08-29 17:29:12,376 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 303 places, 1131 transitions, 29851 flow, removed 67 selfloop flow, removed 5 redundant places. [2023-08-29 17:29:12,397 INFO L231 Difference]: Finished difference. Result has 309 places, 1032 transitions, 27380 flow [2023-08-29 17:29:12,398 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=25221, PETRI_DIFFERENCE_MINUEND_PLACES=294, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1000, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=246, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=733, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=27380, PETRI_PLACES=309, PETRI_TRANSITIONS=1032} [2023-08-29 17:29:12,398 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 264 predicate places. [2023-08-29 17:29:12,398 INFO L495 AbstractCegarLoop]: Abstraction has has 309 places, 1032 transitions, 27380 flow [2023-08-29 17:29:12,399 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 77.3) internal successors, (773), 10 states have internal predecessors, (773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:29:12,399 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:29:12,399 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:29:12,399 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-08-29 17:29:12,399 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-29 17:29:12,399 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:29:12,399 INFO L85 PathProgramCache]: Analyzing trace with hash 1806564088, now seen corresponding path program 6 times [2023-08-29 17:29:12,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:29:12,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598401667] [2023-08-29 17:29:12,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:29:12,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:29:12,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:29:12,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:29:12,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:29:12,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598401667] [2023-08-29 17:29:12,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1598401667] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:29:12,601 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:29:12,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 17:29:12,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915559366] [2023-08-29 17:29:12,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:29:12,602 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 17:29:12,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:29:12,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 17:29:12,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-08-29 17:29:12,804 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 149 [2023-08-29 17:29:12,804 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 309 places, 1032 transitions, 27380 flow. Second operand has 10 states, 10 states have (on average 67.8) internal successors, (678), 10 states have internal predecessors, (678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:29:12,804 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:29:12,804 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 149 [2023-08-29 17:29:12,804 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:29:14,787 INFO L130 PetriNetUnfolder]: 2305/4971 cut-off events. [2023-08-29 17:29:14,787 INFO L131 PetriNetUnfolder]: For 173202/173233 co-relation queries the response was YES. [2023-08-29 17:29:14,821 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46066 conditions, 4971 events. 2305/4971 cut-off events. For 173202/173233 co-relation queries the response was YES. Maximal size of possible extension queue 221. Compared 36710 event pairs, 449 based on Foata normal form. 51/4951 useless extension candidates. Maximal degree in co-relation 45934. Up to 2515 conditions per place. [2023-08-29 17:29:14,840 INFO L137 encePairwiseOnDemand]: 127/149 looper letters, 957 selfloop transitions, 243 changer transitions 0/1215 dead transitions. [2023-08-29 17:29:14,841 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 319 places, 1215 transitions, 32601 flow [2023-08-29 17:29:14,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-29 17:29:14,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-29 17:29:14,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 899 transitions. [2023-08-29 17:29:14,842 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5485051860890787 [2023-08-29 17:29:14,842 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 899 transitions. [2023-08-29 17:29:14,842 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 899 transitions. [2023-08-29 17:29:14,842 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:29:14,842 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 899 transitions. [2023-08-29 17:29:14,843 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 81.72727272727273) internal successors, (899), 11 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:29:14,844 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 149.0) internal successors, (1788), 12 states have internal predecessors, (1788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:29:14,845 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 149.0) internal successors, (1788), 12 states have internal predecessors, (1788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:29:14,845 INFO L175 Difference]: Start difference. First operand has 309 places, 1032 transitions, 27380 flow. Second operand 11 states and 899 transitions. [2023-08-29 17:29:14,845 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 319 places, 1215 transitions, 32601 flow [2023-08-29 17:29:15,648 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 315 places, 1215 transitions, 32292 flow, removed 88 selfloop flow, removed 4 redundant places. [2023-08-29 17:29:15,669 INFO L231 Difference]: Finished difference. Result has 322 places, 1049 transitions, 28339 flow [2023-08-29 17:29:15,670 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=27155, PETRI_DIFFERENCE_MINUEND_PLACES=305, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1032, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=227, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=793, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=28339, PETRI_PLACES=322, PETRI_TRANSITIONS=1049} [2023-08-29 17:29:15,670 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 277 predicate places. [2023-08-29 17:29:15,670 INFO L495 AbstractCegarLoop]: Abstraction has has 322 places, 1049 transitions, 28339 flow [2023-08-29 17:29:15,670 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 67.8) internal successors, (678), 10 states have internal predecessors, (678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:29:15,670 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:29:15,671 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:29:15,671 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-08-29 17:29:15,671 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-29 17:29:15,671 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:29:15,671 INFO L85 PathProgramCache]: Analyzing trace with hash -1210359308, now seen corresponding path program 4 times [2023-08-29 17:29:15,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:29:15,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951759570] [2023-08-29 17:29:15,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:29:15,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:29:15,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:29:15,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:29:15,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:29:15,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951759570] [2023-08-29 17:29:15,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [951759570] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:29:15,874 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:29:15,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 17:29:15,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818896875] [2023-08-29 17:29:15,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:29:15,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 17:29:15,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:29:15,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 17:29:15,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-08-29 17:29:16,074 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 149 [2023-08-29 17:29:16,075 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 322 places, 1049 transitions, 28339 flow. Second operand has 10 states, 10 states have (on average 67.8) internal successors, (678), 10 states have internal predecessors, (678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:29:16,075 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:29:16,075 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 149 [2023-08-29 17:29:16,075 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:29:18,179 INFO L130 PetriNetUnfolder]: 2330/5013 cut-off events. [2023-08-29 17:29:18,179 INFO L131 PetriNetUnfolder]: For 184779/184791 co-relation queries the response was YES. [2023-08-29 17:29:18,217 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48019 conditions, 5013 events. 2330/5013 cut-off events. For 184779/184791 co-relation queries the response was YES. Maximal size of possible extension queue 223. Compared 37168 event pairs, 513 based on Foata normal form. 17/4954 useless extension candidates. Maximal degree in co-relation 47881. Up to 3882 conditions per place. [2023-08-29 17:29:18,238 INFO L137 encePairwiseOnDemand]: 131/149 looper letters, 727 selfloop transitions, 418 changer transitions 0/1160 dead transitions. [2023-08-29 17:29:18,238 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 330 places, 1160 transitions, 32839 flow [2023-08-29 17:29:18,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-29 17:29:18,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-29 17:29:18,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 714 transitions. [2023-08-29 17:29:18,240 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5324384787472036 [2023-08-29 17:29:18,240 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 714 transitions. [2023-08-29 17:29:18,240 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 714 transitions. [2023-08-29 17:29:18,240 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:29:18,240 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 714 transitions. [2023-08-29 17:29:18,241 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 79.33333333333333) internal successors, (714), 9 states have internal predecessors, (714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:29:18,241 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 149.0) internal successors, (1490), 10 states have internal predecessors, (1490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:29:18,242 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 149.0) internal successors, (1490), 10 states have internal predecessors, (1490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:29:18,242 INFO L175 Difference]: Start difference. First operand has 322 places, 1049 transitions, 28339 flow. Second operand 9 states and 714 transitions. [2023-08-29 17:29:18,242 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 330 places, 1160 transitions, 32839 flow [2023-08-29 17:29:19,102 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 328 places, 1160 transitions, 32491 flow, removed 135 selfloop flow, removed 2 redundant places. [2023-08-29 17:29:19,122 INFO L231 Difference]: Finished difference. Result has 331 places, 1062 transitions, 29725 flow [2023-08-29 17:29:19,122 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=28039, PETRI_DIFFERENCE_MINUEND_PLACES=320, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1049, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=405, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=632, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=29725, PETRI_PLACES=331, PETRI_TRANSITIONS=1062} [2023-08-29 17:29:19,123 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 286 predicate places. [2023-08-29 17:29:19,123 INFO L495 AbstractCegarLoop]: Abstraction has has 331 places, 1062 transitions, 29725 flow [2023-08-29 17:29:19,123 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 67.8) internal successors, (678), 10 states have internal predecessors, (678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:29:19,123 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:29:19,123 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:29:19,123 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-08-29 17:29:19,123 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-29 17:29:19,124 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:29:19,124 INFO L85 PathProgramCache]: Analyzing trace with hash -743994444, now seen corresponding path program 5 times [2023-08-29 17:29:19,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:29:19,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814834765] [2023-08-29 17:29:19,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:29:19,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:29:19,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:29:19,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:29:19,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:29:19,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814834765] [2023-08-29 17:29:19,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814834765] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:29:19,315 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:29:19,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 17:29:19,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417390814] [2023-08-29 17:29:19,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:29:19,316 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 17:29:19,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:29:19,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 17:29:19,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-08-29 17:29:19,515 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 149 [2023-08-29 17:29:19,516 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 331 places, 1062 transitions, 29725 flow. Second operand has 10 states, 10 states have (on average 67.8) internal successors, (678), 10 states have internal predecessors, (678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:29:19,516 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:29:19,516 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 149 [2023-08-29 17:29:19,516 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:29:21,532 INFO L130 PetriNetUnfolder]: 2404/5172 cut-off events. [2023-08-29 17:29:21,532 INFO L131 PetriNetUnfolder]: For 195109/195121 co-relation queries the response was YES. [2023-08-29 17:29:21,573 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50233 conditions, 5172 events. 2404/5172 cut-off events. For 195109/195121 co-relation queries the response was YES. Maximal size of possible extension queue 230. Compared 38573 event pairs, 498 based on Foata normal form. 28/5130 useless extension candidates. Maximal degree in co-relation 50092. Up to 3793 conditions per place. [2023-08-29 17:29:21,596 INFO L137 encePairwiseOnDemand]: 131/149 looper letters, 791 selfloop transitions, 419 changer transitions 0/1225 dead transitions. [2023-08-29 17:29:21,596 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 340 places, 1225 transitions, 35213 flow [2023-08-29 17:29:21,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-29 17:29:21,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-29 17:29:21,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 795 transitions. [2023-08-29 17:29:21,598 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5335570469798657 [2023-08-29 17:29:21,598 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 795 transitions. [2023-08-29 17:29:21,598 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 795 transitions. [2023-08-29 17:29:21,598 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:29:21,598 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 795 transitions. [2023-08-29 17:29:21,599 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 79.5) internal successors, (795), 10 states have internal predecessors, (795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:29:21,600 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 149.0) internal successors, (1639), 11 states have internal predecessors, (1639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:29:21,601 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 149.0) internal successors, (1639), 11 states have internal predecessors, (1639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:29:21,601 INFO L175 Difference]: Start difference. First operand has 331 places, 1062 transitions, 29725 flow. Second operand 10 states and 795 transitions. [2023-08-29 17:29:21,601 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 340 places, 1225 transitions, 35213 flow [2023-08-29 17:29:22,532 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 336 places, 1225 transitions, 34931 flow, removed 8 selfloop flow, removed 4 redundant places. [2023-08-29 17:29:22,560 INFO L231 Difference]: Finished difference. Result has 341 places, 1098 transitions, 31523 flow [2023-08-29 17:29:22,561 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=29445, PETRI_DIFFERENCE_MINUEND_PLACES=327, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1062, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=383, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=644, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=31523, PETRI_PLACES=341, PETRI_TRANSITIONS=1098} [2023-08-29 17:29:22,561 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 296 predicate places. [2023-08-29 17:29:22,562 INFO L495 AbstractCegarLoop]: Abstraction has has 341 places, 1098 transitions, 31523 flow [2023-08-29 17:29:22,562 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 67.8) internal successors, (678), 10 states have internal predecessors, (678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:29:22,562 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:29:22,562 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:29:22,562 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-08-29 17:29:22,562 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-29 17:29:22,563 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:29:22,563 INFO L85 PathProgramCache]: Analyzing trace with hash -1113404018, now seen corresponding path program 6 times [2023-08-29 17:29:22,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:29:22,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288300518] [2023-08-29 17:29:22,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:29:22,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:29:22,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:29:22,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:29:22,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:29:22,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288300518] [2023-08-29 17:29:22,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288300518] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:29:22,766 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:29:22,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 17:29:22,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200199122] [2023-08-29 17:29:22,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:29:22,767 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 17:29:22,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:29:22,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 17:29:22,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-08-29 17:29:22,993 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 149 [2023-08-29 17:29:22,994 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 341 places, 1098 transitions, 31523 flow. Second operand has 10 states, 10 states have (on average 67.8) internal successors, (678), 10 states have internal predecessors, (678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:29:22,994 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:29:22,994 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 149 [2023-08-29 17:29:22,994 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:29:25,190 INFO L130 PetriNetUnfolder]: 2422/5213 cut-off events. [2023-08-29 17:29:25,190 INFO L131 PetriNetUnfolder]: For 204888/204898 co-relation queries the response was YES. [2023-08-29 17:29:25,232 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52122 conditions, 5213 events. 2422/5213 cut-off events. For 204888/204898 co-relation queries the response was YES. Maximal size of possible extension queue 232. Compared 38970 event pairs, 492 based on Foata normal form. 28/5166 useless extension candidates. Maximal degree in co-relation 51976. Up to 3959 conditions per place. [2023-08-29 17:29:25,255 INFO L137 encePairwiseOnDemand]: 131/149 looper letters, 764 selfloop transitions, 454 changer transitions 0/1233 dead transitions. [2023-08-29 17:29:25,255 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 349 places, 1233 transitions, 36600 flow [2023-08-29 17:29:25,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-29 17:29:25,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-29 17:29:25,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 792 transitions. [2023-08-29 17:29:25,256 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5315436241610738 [2023-08-29 17:29:25,256 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 792 transitions. [2023-08-29 17:29:25,256 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 792 transitions. [2023-08-29 17:29:25,257 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:29:25,257 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 792 transitions. [2023-08-29 17:29:25,258 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 79.2) internal successors, (792), 10 states have internal predecessors, (792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:29:25,259 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 149.0) internal successors, (1639), 11 states have internal predecessors, (1639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:29:25,260 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 149.0) internal successors, (1639), 11 states have internal predecessors, (1639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:29:25,260 INFO L175 Difference]: Start difference. First operand has 341 places, 1098 transitions, 31523 flow. Second operand 10 states and 792 transitions. [2023-08-29 17:29:25,260 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 349 places, 1233 transitions, 36600 flow [2023-08-29 17:29:26,214 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 345 places, 1233 transitions, 36382 flow, removed 71 selfloop flow, removed 4 redundant places. [2023-08-29 17:29:26,235 INFO L231 Difference]: Finished difference. Result has 348 places, 1118 transitions, 33080 flow [2023-08-29 17:29:26,236 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=31293, PETRI_DIFFERENCE_MINUEND_PLACES=336, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1097, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=433, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=645, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=33080, PETRI_PLACES=348, PETRI_TRANSITIONS=1118} [2023-08-29 17:29:26,236 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 303 predicate places. [2023-08-29 17:29:26,237 INFO L495 AbstractCegarLoop]: Abstraction has has 348 places, 1118 transitions, 33080 flow [2023-08-29 17:29:26,237 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 67.8) internal successors, (678), 10 states have internal predecessors, (678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:29:26,237 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:29:26,237 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:29:26,237 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-08-29 17:29:26,238 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-29 17:29:26,238 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:29:26,238 INFO L85 PathProgramCache]: Analyzing trace with hash 1675085254, now seen corresponding path program 1 times [2023-08-29 17:29:26,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:29:26,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939453209] [2023-08-29 17:29:26,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:29:26,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:29:26,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:29:26,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:29:26,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:29:26,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939453209] [2023-08-29 17:29:26,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939453209] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:29:26,375 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:29:26,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 17:29:26,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628534895] [2023-08-29 17:29:26,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:29:26,376 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 17:29:26,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:29:26,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 17:29:26,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 17:29:26,526 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 149 [2023-08-29 17:29:26,526 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 348 places, 1118 transitions, 33080 flow. Second operand has 6 states, 6 states have (on average 82.83333333333333) internal successors, (497), 6 states have internal predecessors, (497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:29:26,527 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:29:26,527 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 149 [2023-08-29 17:29:26,527 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:29:28,139 INFO L130 PetriNetUnfolder]: 2180/4768 cut-off events. [2023-08-29 17:29:28,139 INFO L131 PetriNetUnfolder]: For 214477/214594 co-relation queries the response was YES. [2023-08-29 17:29:28,181 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49874 conditions, 4768 events. 2180/4768 cut-off events. For 214477/214594 co-relation queries the response was YES. Maximal size of possible extension queue 231. Compared 35977 event pairs, 274 based on Foata normal form. 46/4768 useless extension candidates. Maximal degree in co-relation 49727. Up to 3463 conditions per place. [2023-08-29 17:29:28,199 INFO L137 encePairwiseOnDemand]: 139/149 looper letters, 708 selfloop transitions, 93 changer transitions 168/1228 dead transitions. [2023-08-29 17:29:28,199 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 353 places, 1228 transitions, 37913 flow [2023-08-29 17:29:28,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 17:29:28,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 17:29:28,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 548 transitions. [2023-08-29 17:29:28,202 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6129753914988815 [2023-08-29 17:29:28,202 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 548 transitions. [2023-08-29 17:29:28,202 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 548 transitions. [2023-08-29 17:29:28,202 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:29:28,202 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 548 transitions. [2023-08-29 17:29:28,203 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 91.33333333333333) internal successors, (548), 6 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:29:28,204 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 149.0) internal successors, (1043), 7 states have internal predecessors, (1043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:29:28,204 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 149.0) internal successors, (1043), 7 states have internal predecessors, (1043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:29:28,204 INFO L175 Difference]: Start difference. First operand has 348 places, 1118 transitions, 33080 flow. Second operand 6 states and 548 transitions. [2023-08-29 17:29:28,204 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 353 places, 1228 transitions, 37913 flow [2023-08-29 17:29:29,047 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 347 places, 1228 transitions, 37285 flow, removed 70 selfloop flow, removed 6 redundant places. [2023-08-29 17:29:29,067 INFO L231 Difference]: Finished difference. Result has 352 places, 1048 transitions, 31050 flow [2023-08-29 17:29:29,067 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=32452, PETRI_DIFFERENCE_MINUEND_PLACES=342, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=44, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1070, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=31050, PETRI_PLACES=352, PETRI_TRANSITIONS=1048} [2023-08-29 17:29:29,068 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 307 predicate places. [2023-08-29 17:29:29,068 INFO L495 AbstractCegarLoop]: Abstraction has has 352 places, 1048 transitions, 31050 flow [2023-08-29 17:29:29,068 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 82.83333333333333) internal successors, (497), 6 states have internal predecessors, (497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:29:29,068 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:29:29,069 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:29:29,069 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-08-29 17:29:29,069 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-29 17:29:29,069 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:29:29,069 INFO L85 PathProgramCache]: Analyzing trace with hash -2022430577, now seen corresponding path program 1 times [2023-08-29 17:29:29,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:29:29,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413634380] [2023-08-29 17:29:29,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:29:29,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:29:29,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:29:29,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:29:29,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:29:29,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413634380] [2023-08-29 17:29:29,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1413634380] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:29:29,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:29:29,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-29 17:29:29,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931140382] [2023-08-29 17:29:29,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:29:29,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-29 17:29:29,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:29:29,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-29 17:29:29,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2023-08-29 17:29:29,553 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 149 [2023-08-29 17:29:29,554 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 352 places, 1048 transitions, 31050 flow. Second operand has 9 states, 9 states have (on average 70.33333333333333) internal successors, (633), 9 states have internal predecessors, (633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:29:29,554 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:29:29,554 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 149 [2023-08-29 17:29:29,554 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:29:31,650 INFO L130 PetriNetUnfolder]: 2302/5081 cut-off events. [2023-08-29 17:29:31,651 INFO L131 PetriNetUnfolder]: For 211237/211249 co-relation queries the response was YES. [2023-08-29 17:29:31,692 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51682 conditions, 5081 events. 2302/5081 cut-off events. For 211237/211249 co-relation queries the response was YES. Maximal size of possible extension queue 219. Compared 38042 event pairs, 499 based on Foata normal form. 24/5089 useless extension candidates. Maximal degree in co-relation 51532. Up to 3653 conditions per place. [2023-08-29 17:29:31,712 INFO L137 encePairwiseOnDemand]: 132/149 looper letters, 712 selfloop transitions, 420 changer transitions 32/1179 dead transitions. [2023-08-29 17:29:31,712 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 358 places, 1179 transitions, 35365 flow [2023-08-29 17:29:31,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-29 17:29:31,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-29 17:29:31,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 666 transitions. [2023-08-29 17:29:31,713 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5587248322147651 [2023-08-29 17:29:31,713 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 666 transitions. [2023-08-29 17:29:31,714 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 666 transitions. [2023-08-29 17:29:31,714 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:29:31,714 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 666 transitions. [2023-08-29 17:29:31,715 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 83.25) internal successors, (666), 8 states have internal predecessors, (666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:29:31,716 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 149.0) internal successors, (1341), 9 states have internal predecessors, (1341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:29:31,716 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 149.0) internal successors, (1341), 9 states have internal predecessors, (1341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:29:31,716 INFO L175 Difference]: Start difference. First operand has 352 places, 1048 transitions, 31050 flow. Second operand 8 states and 666 transitions. [2023-08-29 17:29:31,716 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 358 places, 1179 transitions, 35365 flow [2023-08-29 17:29:32,687 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 354 places, 1179 transitions, 34249 flow, removed 152 selfloop flow, removed 4 redundant places. [2023-08-29 17:29:32,708 INFO L231 Difference]: Finished difference. Result has 359 places, 1056 transitions, 31713 flow [2023-08-29 17:29:32,709 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=30066, PETRI_DIFFERENCE_MINUEND_PLACES=347, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1048, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=404, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=628, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=31713, PETRI_PLACES=359, PETRI_TRANSITIONS=1056} [2023-08-29 17:29:32,710 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 314 predicate places. [2023-08-29 17:29:32,710 INFO L495 AbstractCegarLoop]: Abstraction has has 359 places, 1056 transitions, 31713 flow [2023-08-29 17:29:32,710 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 70.33333333333333) internal successors, (633), 9 states have internal predecessors, (633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:29:32,710 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:29:32,710 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:29:32,710 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-08-29 17:29:32,711 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-29 17:29:32,711 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:29:32,711 INFO L85 PathProgramCache]: Analyzing trace with hash 906309544, now seen corresponding path program 1 times [2023-08-29 17:29:32,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:29:32,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451340484] [2023-08-29 17:29:32,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:29:32,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:29:32,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:29:33,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:29:33,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:29:33,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451340484] [2023-08-29 17:29:33,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [451340484] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:29:33,013 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:29:33,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-29 17:29:33,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310105450] [2023-08-29 17:29:33,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:29:33,014 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-29 17:29:33,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:29:33,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-29 17:29:33,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2023-08-29 17:29:33,281 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 149 [2023-08-29 17:29:33,282 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 359 places, 1056 transitions, 31713 flow. Second operand has 9 states, 9 states have (on average 80.33333333333333) internal successors, (723), 9 states have internal predecessors, (723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:29:33,282 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:29:33,282 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 149 [2023-08-29 17:29:33,282 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:29:34,982 INFO L130 PetriNetUnfolder]: 1971/4534 cut-off events. [2023-08-29 17:29:34,982 INFO L131 PetriNetUnfolder]: For 224971/225116 co-relation queries the response was YES. [2023-08-29 17:29:35,023 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48138 conditions, 4534 events. 1971/4534 cut-off events. For 224971/225116 co-relation queries the response was YES. Maximal size of possible extension queue 219. Compared 35174 event pairs, 239 based on Foata normal form. 88/4600 useless extension candidates. Maximal degree in co-relation 47984. Up to 2951 conditions per place. [2023-08-29 17:29:35,036 INFO L137 encePairwiseOnDemand]: 141/149 looper letters, 608 selfloop transitions, 35 changer transitions 336/1172 dead transitions. [2023-08-29 17:29:35,036 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 367 places, 1172 transitions, 35818 flow [2023-08-29 17:29:35,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-29 17:29:35,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-29 17:29:35,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 782 transitions. [2023-08-29 17:29:35,038 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5831469052945563 [2023-08-29 17:29:35,038 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 782 transitions. [2023-08-29 17:29:35,038 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 782 transitions. [2023-08-29 17:29:35,038 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:29:35,038 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 782 transitions. [2023-08-29 17:29:35,038 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 86.88888888888889) internal successors, (782), 9 states have internal predecessors, (782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:29:35,040 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 149.0) internal successors, (1490), 10 states have internal predecessors, (1490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:29:35,040 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 149.0) internal successors, (1490), 10 states have internal predecessors, (1490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:29:35,040 INFO L175 Difference]: Start difference. First operand has 359 places, 1056 transitions, 31713 flow. Second operand 9 states and 782 transitions. [2023-08-29 17:29:35,040 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 367 places, 1172 transitions, 35818 flow [2023-08-29 17:29:35,927 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 364 places, 1172 transitions, 35702 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-29 17:29:35,945 INFO L231 Difference]: Finished difference. Result has 370 places, 824 transitions, 24288 flow [2023-08-29 17:29:35,946 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=31627, PETRI_DIFFERENCE_MINUEND_PLACES=356, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1056, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1021, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=24288, PETRI_PLACES=370, PETRI_TRANSITIONS=824} [2023-08-29 17:29:35,946 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 325 predicate places. [2023-08-29 17:29:35,946 INFO L495 AbstractCegarLoop]: Abstraction has has 370 places, 824 transitions, 24288 flow [2023-08-29 17:29:35,946 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 80.33333333333333) internal successors, (723), 9 states have internal predecessors, (723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:29:35,946 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:29:35,946 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:29:35,946 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-08-29 17:29:35,947 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-29 17:29:35,947 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:29:35,947 INFO L85 PathProgramCache]: Analyzing trace with hash -194410995, now seen corresponding path program 2 times [2023-08-29 17:29:35,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:29:35,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252580309] [2023-08-29 17:29:35,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:29:35,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:29:35,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:29:36,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:29:36,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:29:36,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252580309] [2023-08-29 17:29:36,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1252580309] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:29:36,373 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:29:36,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-29 17:29:36,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249285365] [2023-08-29 17:29:36,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:29:36,374 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-29 17:29:36,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:29:36,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-29 17:29:36,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-08-29 17:29:36,696 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 149 [2023-08-29 17:29:36,697 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 370 places, 824 transitions, 24288 flow. Second operand has 11 states, 11 states have (on average 66.72727272727273) internal successors, (734), 11 states have internal predecessors, (734), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:29:36,697 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:29:36,697 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 149 [2023-08-29 17:29:36,697 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:29:38,447 INFO L130 PetriNetUnfolder]: 1674/3914 cut-off events. [2023-08-29 17:29:38,448 INFO L131 PetriNetUnfolder]: For 181354/181366 co-relation queries the response was YES. [2023-08-29 17:29:38,481 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41281 conditions, 3914 events. 1674/3914 cut-off events. For 181354/181366 co-relation queries the response was YES. Maximal size of possible extension queue 190. Compared 29318 event pairs, 402 based on Foata normal form. 15/3919 useless extension candidates. Maximal degree in co-relation 41121. Up to 1691 conditions per place. [2023-08-29 17:29:38,491 INFO L137 encePairwiseOnDemand]: 139/149 looper letters, 563 selfloop transitions, 26 changer transitions 385/989 dead transitions. [2023-08-29 17:29:38,491 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 377 places, 989 transitions, 28349 flow [2023-08-29 17:29:38,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-29 17:29:38,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-29 17:29:38,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 805 transitions. [2023-08-29 17:29:38,493 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.540268456375839 [2023-08-29 17:29:38,493 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 805 transitions. [2023-08-29 17:29:38,493 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 805 transitions. [2023-08-29 17:29:38,493 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:29:38,493 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 805 transitions. [2023-08-29 17:29:38,494 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 80.5) internal successors, (805), 10 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:29:38,495 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 149.0) internal successors, (1639), 11 states have internal predecessors, (1639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:29:38,495 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 149.0) internal successors, (1639), 11 states have internal predecessors, (1639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:29:38,495 INFO L175 Difference]: Start difference. First operand has 370 places, 824 transitions, 24288 flow. Second operand 10 states and 805 transitions. [2023-08-29 17:29:38,495 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 377 places, 989 transitions, 28349 flow [2023-08-29 17:29:39,169 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 365 places, 989 transitions, 27045 flow, removed 159 selfloop flow, removed 12 redundant places. [2023-08-29 17:29:39,182 INFO L231 Difference]: Finished difference. Result has 369 places, 572 transitions, 15165 flow [2023-08-29 17:29:39,182 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=23244, PETRI_DIFFERENCE_MINUEND_PLACES=356, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=824, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=798, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=15165, PETRI_PLACES=369, PETRI_TRANSITIONS=572} [2023-08-29 17:29:39,183 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 324 predicate places. [2023-08-29 17:29:39,183 INFO L495 AbstractCegarLoop]: Abstraction has has 369 places, 572 transitions, 15165 flow [2023-08-29 17:29:39,183 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 66.72727272727273) internal successors, (734), 11 states have internal predecessors, (734), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:29:39,183 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:29:39,183 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:29:39,183 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2023-08-29 17:29:39,183 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-29 17:29:39,184 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:29:39,184 INFO L85 PathProgramCache]: Analyzing trace with hash -1815637884, now seen corresponding path program 2 times [2023-08-29 17:29:39,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:29:39,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410429955] [2023-08-29 17:29:39,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:29:39,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:29:39,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:29:39,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:29:39,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:29:39,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410429955] [2023-08-29 17:29:39,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [410429955] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:29:39,551 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:29:39,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-29 17:29:39,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262895961] [2023-08-29 17:29:39,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:29:39,551 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-29 17:29:39,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:29:39,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-29 17:29:39,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-08-29 17:29:39,832 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 149 [2023-08-29 17:29:39,833 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 369 places, 572 transitions, 15165 flow. Second operand has 9 states, 9 states have (on average 80.33333333333333) internal successors, (723), 9 states have internal predecessors, (723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:29:39,833 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:29:39,833 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 149 [2023-08-29 17:29:39,833 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:29:40,580 INFO L130 PetriNetUnfolder]: 914/2269 cut-off events. [2023-08-29 17:29:40,581 INFO L131 PetriNetUnfolder]: For 105787/105851 co-relation queries the response was YES. [2023-08-29 17:29:40,596 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24313 conditions, 2269 events. 914/2269 cut-off events. For 105787/105851 co-relation queries the response was YES. Maximal size of possible extension queue 116. Compared 15829 event pairs, 156 based on Foata normal form. 36/2292 useless extension candidates. Maximal degree in co-relation 24166. Up to 1784 conditions per place. [2023-08-29 17:29:40,602 INFO L137 encePairwiseOnDemand]: 137/149 looper letters, 423 selfloop transitions, 39 changer transitions 9/592 dead transitions. [2023-08-29 17:29:40,602 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 355 places, 592 transitions, 16490 flow [2023-08-29 17:29:40,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-29 17:29:40,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-29 17:29:40,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 692 transitions. [2023-08-29 17:29:40,603 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5805369127516778 [2023-08-29 17:29:40,603 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 692 transitions. [2023-08-29 17:29:40,603 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 692 transitions. [2023-08-29 17:29:40,603 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:29:40,603 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 692 transitions. [2023-08-29 17:29:40,604 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 86.5) internal successors, (692), 8 states have internal predecessors, (692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:29:40,605 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 149.0) internal successors, (1341), 9 states have internal predecessors, (1341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:29:40,605 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 149.0) internal successors, (1341), 9 states have internal predecessors, (1341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:29:40,605 INFO L175 Difference]: Start difference. First operand has 369 places, 572 transitions, 15165 flow. Second operand 8 states and 692 transitions. [2023-08-29 17:29:40,605 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 355 places, 592 transitions, 16490 flow [2023-08-29 17:29:40,902 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 309 places, 592 transitions, 14815 flow, removed 66 selfloop flow, removed 46 redundant places. [2023-08-29 17:29:40,911 INFO L231 Difference]: Finished difference. Result has 311 places, 572 transitions, 13635 flow [2023-08-29 17:29:40,911 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=13546, PETRI_DIFFERENCE_MINUEND_PLACES=302, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=572, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=39, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=533, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=13635, PETRI_PLACES=311, PETRI_TRANSITIONS=572} [2023-08-29 17:29:40,911 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 266 predicate places. [2023-08-29 17:29:40,911 INFO L495 AbstractCegarLoop]: Abstraction has has 311 places, 572 transitions, 13635 flow [2023-08-29 17:29:40,912 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 80.33333333333333) internal successors, (723), 9 states have internal predecessors, (723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:29:40,912 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:29:40,912 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:29:40,912 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2023-08-29 17:29:40,912 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-29 17:29:40,912 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:29:40,912 INFO L85 PathProgramCache]: Analyzing trace with hash 31039561, now seen corresponding path program 3 times [2023-08-29 17:29:40,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:29:40,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127524307] [2023-08-29 17:29:40,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:29:40,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:29:40,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:29:41,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:29:41,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:29:41,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127524307] [2023-08-29 17:29:41,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1127524307] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:29:41,302 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:29:41,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-29 17:29:41,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632471808] [2023-08-29 17:29:41,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:29:41,303 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-29 17:29:41,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:29:41,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-29 17:29:41,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-08-29 17:29:41,759 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 149 [2023-08-29 17:29:41,759 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 311 places, 572 transitions, 13635 flow. Second operand has 11 states, 11 states have (on average 66.72727272727273) internal successors, (734), 11 states have internal predecessors, (734), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:29:41,759 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:29:41,759 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 149 [2023-08-29 17:29:41,759 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:29:42,743 INFO L130 PetriNetUnfolder]: 1055/2503 cut-off events. [2023-08-29 17:29:42,743 INFO L131 PetriNetUnfolder]: For 79825/79837 co-relation queries the response was YES. [2023-08-29 17:29:42,761 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23828 conditions, 2503 events. 1055/2503 cut-off events. For 79825/79837 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 17042 event pairs, 187 based on Foata normal form. 15/2508 useless extension candidates. Maximal degree in co-relation 23705. Up to 845 conditions per place. [2023-08-29 17:29:42,765 INFO L137 encePairwiseOnDemand]: 139/149 looper letters, 198 selfloop transitions, 25 changer transitions 558/787 dead transitions. [2023-08-29 17:29:42,765 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 319 places, 787 transitions, 18439 flow [2023-08-29 17:29:42,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-29 17:29:42,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-29 17:29:42,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 781 transitions. [2023-08-29 17:29:42,767 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5241610738255034 [2023-08-29 17:29:42,767 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 781 transitions. [2023-08-29 17:29:42,767 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 781 transitions. [2023-08-29 17:29:42,767 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:29:42,767 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 781 transitions. [2023-08-29 17:29:42,768 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 78.1) internal successors, (781), 10 states have internal predecessors, (781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:29:42,769 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 149.0) internal successors, (1639), 11 states have internal predecessors, (1639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:29:42,769 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 149.0) internal successors, (1639), 11 states have internal predecessors, (1639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:29:42,769 INFO L175 Difference]: Start difference. First operand has 311 places, 572 transitions, 13635 flow. Second operand 10 states and 781 transitions. [2023-08-29 17:29:42,769 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 319 places, 787 transitions, 18439 flow [2023-08-29 17:29:43,050 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 311 places, 787 transitions, 18198 flow, removed 2 selfloop flow, removed 8 redundant places. [2023-08-29 17:29:43,058 INFO L231 Difference]: Finished difference. Result has 315 places, 217 transitions, 4034 flow [2023-08-29 17:29:43,058 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=13459, PETRI_DIFFERENCE_MINUEND_PLACES=302, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=572, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=547, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=4034, PETRI_PLACES=315, PETRI_TRANSITIONS=217} [2023-08-29 17:29:43,058 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 270 predicate places. [2023-08-29 17:29:43,058 INFO L495 AbstractCegarLoop]: Abstraction has has 315 places, 217 transitions, 4034 flow [2023-08-29 17:29:43,059 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 66.72727272727273) internal successors, (734), 11 states have internal predecessors, (734), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:29:43,059 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:29:43,059 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:29:43,059 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2023-08-29 17:29:43,059 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-29 17:29:43,059 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:29:43,060 INFO L85 PathProgramCache]: Analyzing trace with hash -833565660, now seen corresponding path program 3 times [2023-08-29 17:29:43,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:29:43,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731288293] [2023-08-29 17:29:43,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:29:43,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:29:43,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:29:43,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:29:43,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:29:43,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731288293] [2023-08-29 17:29:43,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1731288293] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:29:43,408 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:29:43,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-29 17:29:43,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230489620] [2023-08-29 17:29:43,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:29:43,408 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-29 17:29:43,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:29:43,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-29 17:29:43,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-08-29 17:29:43,652 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 149 [2023-08-29 17:29:43,652 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 315 places, 217 transitions, 4034 flow. Second operand has 9 states, 9 states have (on average 79.33333333333333) internal successors, (714), 9 states have internal predecessors, (714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:29:43,652 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:29:43,652 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 149 [2023-08-29 17:29:43,652 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:29:43,935 INFO L130 PetriNetUnfolder]: 289/793 cut-off events. [2023-08-29 17:29:43,936 INFO L131 PetriNetUnfolder]: For 19303/19303 co-relation queries the response was YES. [2023-08-29 17:29:43,941 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7524 conditions, 793 events. 289/793 cut-off events. For 19303/19303 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 4210 event pairs, 50 based on Foata normal form. 11/802 useless extension candidates. Maximal degree in co-relation 7399. Up to 589 conditions per place. [2023-08-29 17:29:43,965 INFO L137 encePairwiseOnDemand]: 137/149 looper letters, 157 selfloop transitions, 35 changer transitions 30/256 dead transitions. [2023-08-29 17:29:43,966 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 294 places, 256 transitions, 5171 flow [2023-08-29 17:29:43,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-29 17:29:43,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-29 17:29:43,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 769 transitions. [2023-08-29 17:29:43,967 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5734526472781506 [2023-08-29 17:29:43,967 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 769 transitions. [2023-08-29 17:29:43,967 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 769 transitions. [2023-08-29 17:29:43,967 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:29:43,967 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 769 transitions. [2023-08-29 17:29:43,968 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 85.44444444444444) internal successors, (769), 9 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:29:43,969 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 149.0) internal successors, (1490), 10 states have internal predecessors, (1490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:29:43,969 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 149.0) internal successors, (1490), 10 states have internal predecessors, (1490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:29:43,969 INFO L175 Difference]: Start difference. First operand has 315 places, 217 transitions, 4034 flow. Second operand 9 states and 769 transitions. [2023-08-29 17:29:43,969 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 294 places, 256 transitions, 5171 flow [2023-08-29 17:29:44,023 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 215 places, 256 transitions, 3742 flow, removed 120 selfloop flow, removed 79 redundant places. [2023-08-29 17:29:44,026 INFO L231 Difference]: Finished difference. Result has 218 places, 217 transitions, 2885 flow [2023-08-29 17:29:44,026 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=2791, PETRI_DIFFERENCE_MINUEND_PLACES=207, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=217, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=182, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2885, PETRI_PLACES=218, PETRI_TRANSITIONS=217} [2023-08-29 17:29:44,026 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 173 predicate places. [2023-08-29 17:29:44,026 INFO L495 AbstractCegarLoop]: Abstraction has has 218 places, 217 transitions, 2885 flow [2023-08-29 17:29:44,026 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 79.33333333333333) internal successors, (714), 9 states have internal predecessors, (714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:29:44,026 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:29:44,026 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:29:44,026 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2023-08-29 17:29:44,026 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-29 17:29:44,027 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:29:44,027 INFO L85 PathProgramCache]: Analyzing trace with hash -170968354, now seen corresponding path program 4 times [2023-08-29 17:29:44,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:29:44,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196842844] [2023-08-29 17:29:44,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:29:44,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:29:44,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:29:44,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:29:44,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:29:44,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196842844] [2023-08-29 17:29:44,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1196842844] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:29:44,355 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:29:44,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-29 17:29:44,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123963231] [2023-08-29 17:29:44,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:29:44,356 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-29 17:29:44,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:29:44,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-29 17:29:44,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-08-29 17:29:44,649 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 149 [2023-08-29 17:29:44,650 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 218 places, 217 transitions, 2885 flow. Second operand has 9 states, 9 states have (on average 80.33333333333333) internal successors, (723), 9 states have internal predecessors, (723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:29:44,650 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:29:44,650 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 149 [2023-08-29 17:29:44,650 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:29:44,935 INFO L130 PetriNetUnfolder]: 302/820 cut-off events. [2023-08-29 17:29:44,935 INFO L131 PetriNetUnfolder]: For 10729/10729 co-relation queries the response was YES. [2023-08-29 17:29:44,939 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6131 conditions, 820 events. 302/820 cut-off events. For 10729/10729 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 4354 event pairs, 54 based on Foata normal form. 11/825 useless extension candidates. Maximal degree in co-relation 6043. Up to 502 conditions per place. [2023-08-29 17:29:44,941 INFO L137 encePairwiseOnDemand]: 138/149 looper letters, 151 selfloop transitions, 30 changer transitions 64/279 dead transitions. [2023-08-29 17:29:44,941 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 224 places, 279 transitions, 4225 flow [2023-08-29 17:29:44,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-29 17:29:44,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-29 17:29:44,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 778 transitions. [2023-08-29 17:29:44,943 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5801640566741237 [2023-08-29 17:29:44,944 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 778 transitions. [2023-08-29 17:29:44,944 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 778 transitions. [2023-08-29 17:29:44,944 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:29:44,944 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 778 transitions. [2023-08-29 17:29:44,945 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 86.44444444444444) internal successors, (778), 9 states have internal predecessors, (778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:29:44,946 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 149.0) internal successors, (1490), 10 states have internal predecessors, (1490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:29:44,947 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 149.0) internal successors, (1490), 10 states have internal predecessors, (1490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:29:44,947 INFO L175 Difference]: Start difference. First operand has 218 places, 217 transitions, 2885 flow. Second operand 9 states and 778 transitions. [2023-08-29 17:29:44,947 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 224 places, 279 transitions, 4225 flow [2023-08-29 17:29:44,980 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 214 places, 279 transitions, 4034 flow, removed 30 selfloop flow, removed 10 redundant places. [2023-08-29 17:29:44,983 INFO L231 Difference]: Finished difference. Result has 218 places, 213 transitions, 2771 flow [2023-08-29 17:29:44,984 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=2760, PETRI_DIFFERENCE_MINUEND_PLACES=206, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=217, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=190, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2771, PETRI_PLACES=218, PETRI_TRANSITIONS=213} [2023-08-29 17:29:44,984 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 173 predicate places. [2023-08-29 17:29:44,984 INFO L495 AbstractCegarLoop]: Abstraction has has 218 places, 213 transitions, 2771 flow [2023-08-29 17:29:44,984 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 80.33333333333333) internal successors, (723), 9 states have internal predecessors, (723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:29:44,984 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:29:44,984 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:29:44,984 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2023-08-29 17:29:44,984 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-29 17:29:44,985 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:29:44,985 INFO L85 PathProgramCache]: Analyzing trace with hash -787920113, now seen corresponding path program 4 times [2023-08-29 17:29:44,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:29:44,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67502415] [2023-08-29 17:29:44,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:29:44,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:29:45,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:29:45,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:29:45,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:29:45,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67502415] [2023-08-29 17:29:45,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [67502415] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:29:45,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:29:45,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-29 17:29:45,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428058463] [2023-08-29 17:29:45,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:29:45,453 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-29 17:29:45,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:29:45,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-29 17:29:45,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-08-29 17:29:45,818 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 149 [2023-08-29 17:29:45,819 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 218 places, 213 transitions, 2771 flow. Second operand has 11 states, 11 states have (on average 66.72727272727273) internal successors, (734), 11 states have internal predecessors, (734), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:29:45,819 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:29:45,819 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 149 [2023-08-29 17:29:45,819 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:29:46,255 INFO L130 PetriNetUnfolder]: 291/798 cut-off events. [2023-08-29 17:29:46,255 INFO L131 PetriNetUnfolder]: For 10140/10140 co-relation queries the response was YES. [2023-08-29 17:29:46,260 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5965 conditions, 798 events. 291/798 cut-off events. For 10140/10140 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 4279 event pairs, 32 based on Foata normal form. 9/806 useless extension candidates. Maximal degree in co-relation 5877. Up to 356 conditions per place. [2023-08-29 17:29:46,262 INFO L137 encePairwiseOnDemand]: 138/149 looper letters, 202 selfloop transitions, 37 changer transitions 81/326 dead transitions. [2023-08-29 17:29:46,263 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 224 places, 326 transitions, 4409 flow [2023-08-29 17:29:46,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-29 17:29:46,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-29 17:29:46,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 769 transitions. [2023-08-29 17:29:46,266 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5161073825503356 [2023-08-29 17:29:46,266 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 769 transitions. [2023-08-29 17:29:46,266 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 769 transitions. [2023-08-29 17:29:46,266 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:29:46,266 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 769 transitions. [2023-08-29 17:29:46,267 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 76.9) internal successors, (769), 10 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:29:46,268 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 149.0) internal successors, (1639), 11 states have internal predecessors, (1639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:29:46,268 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 149.0) internal successors, (1639), 11 states have internal predecessors, (1639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:29:46,268 INFO L175 Difference]: Start difference. First operand has 218 places, 213 transitions, 2771 flow. Second operand 10 states and 769 transitions. [2023-08-29 17:29:46,268 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 224 places, 326 transitions, 4409 flow [2023-08-29 17:29:46,297 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 212 places, 326 transitions, 4146 flow, removed 26 selfloop flow, removed 12 redundant places. [2023-08-29 17:29:46,300 INFO L231 Difference]: Finished difference. Result has 215 places, 195 transitions, 2456 flow [2023-08-29 17:29:46,300 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=2569, PETRI_DIFFERENCE_MINUEND_PLACES=203, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=213, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=176, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=2456, PETRI_PLACES=215, PETRI_TRANSITIONS=195} [2023-08-29 17:29:46,301 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 170 predicate places. [2023-08-29 17:29:46,301 INFO L495 AbstractCegarLoop]: Abstraction has has 215 places, 195 transitions, 2456 flow [2023-08-29 17:29:46,301 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 66.72727272727273) internal successors, (734), 11 states have internal predecessors, (734), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:29:46,301 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:29:46,301 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:29:46,302 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2023-08-29 17:29:46,302 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-29 17:29:46,302 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:29:46,302 INFO L85 PathProgramCache]: Analyzing trace with hash 2129359247, now seen corresponding path program 5 times [2023-08-29 17:29:46,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:29:46,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285458337] [2023-08-29 17:29:46,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:29:46,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:29:46,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:29:46,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:29:46,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:29:46,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285458337] [2023-08-29 17:29:46,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1285458337] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:29:46,748 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:29:46,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-29 17:29:46,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375871361] [2023-08-29 17:29:46,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:29:46,749 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-29 17:29:46,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:29:46,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-29 17:29:46,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2023-08-29 17:29:47,041 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 149 [2023-08-29 17:29:47,041 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 215 places, 195 transitions, 2456 flow. Second operand has 11 states, 11 states have (on average 66.72727272727273) internal successors, (734), 11 states have internal predecessors, (734), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:29:47,042 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:29:47,042 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 149 [2023-08-29 17:29:47,042 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:29:47,374 INFO L130 PetriNetUnfolder]: 239/693 cut-off events. [2023-08-29 17:29:47,375 INFO L131 PetriNetUnfolder]: For 8478/8478 co-relation queries the response was YES. [2023-08-29 17:29:47,378 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5159 conditions, 693 events. 239/693 cut-off events. For 8478/8478 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 3636 event pairs, 39 based on Foata normal form. 4/697 useless extension candidates. Maximal degree in co-relation 5073. Up to 476 conditions per place. [2023-08-29 17:29:47,379 INFO L137 encePairwiseOnDemand]: 138/149 looper letters, 149 selfloop transitions, 31 changer transitions 42/228 dead transitions. [2023-08-29 17:29:47,379 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 223 places, 228 transitions, 3131 flow [2023-08-29 17:29:47,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-29 17:29:47,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-29 17:29:47,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 672 transitions. [2023-08-29 17:29:47,381 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5011185682326622 [2023-08-29 17:29:47,381 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 672 transitions. [2023-08-29 17:29:47,381 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 672 transitions. [2023-08-29 17:29:47,381 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:29:47,381 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 672 transitions. [2023-08-29 17:29:47,382 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 74.66666666666667) internal successors, (672), 9 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:29:47,383 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 149.0) internal successors, (1490), 10 states have internal predecessors, (1490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:29:47,383 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 149.0) internal successors, (1490), 10 states have internal predecessors, (1490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:29:47,383 INFO L175 Difference]: Start difference. First operand has 215 places, 195 transitions, 2456 flow. Second operand 9 states and 672 transitions. [2023-08-29 17:29:47,383 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 223 places, 228 transitions, 3131 flow [2023-08-29 17:29:47,408 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 212 places, 228 transitions, 3010 flow, removed 7 selfloop flow, removed 11 redundant places. [2023-08-29 17:29:47,410 INFO L231 Difference]: Finished difference. Result has 213 places, 176 transitions, 2082 flow [2023-08-29 17:29:47,410 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=2337, PETRI_DIFFERENCE_MINUEND_PLACES=204, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=195, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=164, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2082, PETRI_PLACES=213, PETRI_TRANSITIONS=176} [2023-08-29 17:29:47,411 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 168 predicate places. [2023-08-29 17:29:47,411 INFO L495 AbstractCegarLoop]: Abstraction has has 213 places, 176 transitions, 2082 flow [2023-08-29 17:29:47,411 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 66.72727272727273) internal successors, (734), 11 states have internal predecessors, (734), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:29:47,411 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:29:47,411 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:29:47,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2023-08-29 17:29:47,411 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-29 17:29:47,411 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:29:47,411 INFO L85 PathProgramCache]: Analyzing trace with hash 1301568573, now seen corresponding path program 6 times [2023-08-29 17:29:47,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:29:47,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103117365] [2023-08-29 17:29:47,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:29:47,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:29:47,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:29:47,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:29:47,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:29:47,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103117365] [2023-08-29 17:29:47,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [103117365] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:29:47,835 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:29:47,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-29 17:29:47,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623746210] [2023-08-29 17:29:47,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:29:47,836 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-29 17:29:47,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:29:47,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-29 17:29:47,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-08-29 17:29:48,188 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 149 [2023-08-29 17:29:48,189 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 213 places, 176 transitions, 2082 flow. Second operand has 11 states, 11 states have (on average 66.72727272727273) internal successors, (734), 11 states have internal predecessors, (734), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:29:48,189 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:29:48,189 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 149 [2023-08-29 17:29:48,189 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:29:48,604 INFO L130 PetriNetUnfolder]: 203/569 cut-off events. [2023-08-29 17:29:48,604 INFO L131 PetriNetUnfolder]: For 6774/6774 co-relation queries the response was YES. [2023-08-29 17:29:48,607 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4158 conditions, 569 events. 203/569 cut-off events. For 6774/6774 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 2680 event pairs, 27 based on Foata normal form. 9/577 useless extension candidates. Maximal degree in co-relation 4074. Up to 333 conditions per place. [2023-08-29 17:29:48,608 INFO L137 encePairwiseOnDemand]: 138/149 looper letters, 135 selfloop transitions, 24 changer transitions 76/241 dead transitions. [2023-08-29 17:29:48,608 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 219 places, 241 transitions, 3053 flow [2023-08-29 17:29:48,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-29 17:29:48,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-29 17:29:48,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 754 transitions. [2023-08-29 17:29:48,609 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5060402684563758 [2023-08-29 17:29:48,609 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 754 transitions. [2023-08-29 17:29:48,609 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 754 transitions. [2023-08-29 17:29:48,610 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:29:48,610 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 754 transitions. [2023-08-29 17:29:48,610 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 75.4) internal successors, (754), 10 states have internal predecessors, (754), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:29:48,611 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 149.0) internal successors, (1639), 11 states have internal predecessors, (1639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:29:48,611 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 149.0) internal successors, (1639), 11 states have internal predecessors, (1639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:29:48,611 INFO L175 Difference]: Start difference. First operand has 213 places, 176 transitions, 2082 flow. Second operand 10 states and 754 transitions. [2023-08-29 17:29:48,611 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 219 places, 241 transitions, 3053 flow [2023-08-29 17:29:48,628 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 199 places, 241 transitions, 2849 flow, removed 16 selfloop flow, removed 20 redundant places. [2023-08-29 17:29:48,631 INFO L231 Difference]: Finished difference. Result has 201 places, 155 transitions, 1660 flow [2023-08-29 17:29:48,631 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=1878, PETRI_DIFFERENCE_MINUEND_PLACES=190, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=176, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=152, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1660, PETRI_PLACES=201, PETRI_TRANSITIONS=155} [2023-08-29 17:29:48,632 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 156 predicate places. [2023-08-29 17:29:48,632 INFO L495 AbstractCegarLoop]: Abstraction has has 201 places, 155 transitions, 1660 flow [2023-08-29 17:29:48,632 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 66.72727272727273) internal successors, (734), 11 states have internal predecessors, (734), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:29:48,632 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:29:48,632 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:29:48,632 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2023-08-29 17:29:48,632 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-29 17:29:48,633 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:29:48,633 INFO L85 PathProgramCache]: Analyzing trace with hash -549311811, now seen corresponding path program 7 times [2023-08-29 17:29:48,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:29:48,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327217426] [2023-08-29 17:29:48,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:29:48,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:29:48,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:29:49,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:29:49,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:29:49,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327217426] [2023-08-29 17:29:49,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1327217426] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:29:49,077 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:29:49,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-29 17:29:49,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060191710] [2023-08-29 17:29:49,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:29:49,078 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-29 17:29:49,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:29:49,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-29 17:29:49,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-08-29 17:29:49,505 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 149 [2023-08-29 17:29:49,505 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 201 places, 155 transitions, 1660 flow. Second operand has 11 states, 11 states have (on average 66.72727272727273) internal successors, (734), 11 states have internal predecessors, (734), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:29:49,505 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:29:49,505 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 149 [2023-08-29 17:29:49,505 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:29:49,879 INFO L130 PetriNetUnfolder]: 148/423 cut-off events. [2023-08-29 17:29:49,879 INFO L131 PetriNetUnfolder]: For 3517/3517 co-relation queries the response was YES. [2023-08-29 17:29:49,881 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2750 conditions, 423 events. 148/423 cut-off events. For 3517/3517 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1774 event pairs, 21 based on Foata normal form. 9/431 useless extension candidates. Maximal degree in co-relation 2674. Up to 106 conditions per place. [2023-08-29 17:29:49,881 INFO L137 encePairwiseOnDemand]: 139/149 looper letters, 46 selfloop transitions, 9 changer transitions 193/250 dead transitions. [2023-08-29 17:29:49,881 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 203 places, 250 transitions, 2944 flow [2023-08-29 17:29:49,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-29 17:29:49,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-29 17:29:49,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 766 transitions. [2023-08-29 17:29:49,883 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5140939597315436 [2023-08-29 17:29:49,883 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 766 transitions. [2023-08-29 17:29:49,883 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 766 transitions. [2023-08-29 17:29:49,883 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:29:49,883 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 766 transitions. [2023-08-29 17:29:49,884 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 76.6) internal successors, (766), 10 states have internal predecessors, (766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:29:49,885 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 149.0) internal successors, (1639), 11 states have internal predecessors, (1639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:29:49,886 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 149.0) internal successors, (1639), 11 states have internal predecessors, (1639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:29:49,886 INFO L175 Difference]: Start difference. First operand has 201 places, 155 transitions, 1660 flow. Second operand 10 states and 766 transitions. [2023-08-29 17:29:49,886 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 203 places, 250 transitions, 2944 flow [2023-08-29 17:29:49,903 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 183 places, 250 transitions, 2774 flow, removed 7 selfloop flow, removed 20 redundant places. [2023-08-29 17:29:49,905 INFO L231 Difference]: Finished difference. Result has 183 places, 55 transitions, 519 flow [2023-08-29 17:29:49,905 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=1476, PETRI_DIFFERENCE_MINUEND_PLACES=174, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=154, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=145, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=519, PETRI_PLACES=183, PETRI_TRANSITIONS=55} [2023-08-29 17:29:49,906 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 138 predicate places. [2023-08-29 17:29:49,906 INFO L495 AbstractCegarLoop]: Abstraction has has 183 places, 55 transitions, 519 flow [2023-08-29 17:29:49,906 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 66.72727272727273) internal successors, (734), 11 states have internal predecessors, (734), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:29:49,906 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:29:49,906 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:29:49,907 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2023-08-29 17:29:49,907 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-29 17:29:49,907 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:29:49,907 INFO L85 PathProgramCache]: Analyzing trace with hash -282308628, now seen corresponding path program 5 times [2023-08-29 17:29:49,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:29:49,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297945947] [2023-08-29 17:29:49,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:29:49,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:29:49,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:29:50,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:29:50,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:29:50,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297945947] [2023-08-29 17:29:50,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297945947] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:29:50,183 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:29:50,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-29 17:29:50,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875027258] [2023-08-29 17:29:50,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:29:50,183 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-29 17:29:50,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:29:50,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-29 17:29:50,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-08-29 17:29:50,473 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 149 [2023-08-29 17:29:50,473 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 55 transitions, 519 flow. Second operand has 9 states, 9 states have (on average 79.33333333333333) internal successors, (714), 9 states have internal predecessors, (714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:29:50,473 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:29:50,474 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 149 [2023-08-29 17:29:50,474 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:29:50,581 INFO L130 PetriNetUnfolder]: 21/92 cut-off events. [2023-08-29 17:29:50,581 INFO L131 PetriNetUnfolder]: For 536/536 co-relation queries the response was YES. [2023-08-29 17:29:50,581 INFO L83 FinitePrefix]: Finished finitePrefix Result has 576 conditions, 92 events. 21/92 cut-off events. For 536/536 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 162 event pairs, 0 based on Foata normal form. 11/103 useless extension candidates. Maximal degree in co-relation 509. Up to 27 conditions per place. [2023-08-29 17:29:50,581 INFO L137 encePairwiseOnDemand]: 142/149 looper letters, 0 selfloop transitions, 0 changer transitions 78/78 dead transitions. [2023-08-29 17:29:50,581 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 162 places, 78 transitions, 878 flow [2023-08-29 17:29:50,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-29 17:29:50,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-29 17:29:50,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 663 transitions. [2023-08-29 17:29:50,582 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5562080536912751 [2023-08-29 17:29:50,583 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 663 transitions. [2023-08-29 17:29:50,583 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 663 transitions. [2023-08-29 17:29:50,583 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:29:50,583 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 663 transitions. [2023-08-29 17:29:50,584 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 82.875) internal successors, (663), 8 states have internal predecessors, (663), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:29:50,585 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 149.0) internal successors, (1341), 9 states have internal predecessors, (1341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:29:50,585 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 149.0) internal successors, (1341), 9 states have internal predecessors, (1341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:29:50,585 INFO L175 Difference]: Start difference. First operand has 183 places, 55 transitions, 519 flow. Second operand 8 states and 663 transitions. [2023-08-29 17:29:50,585 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 162 places, 78 transitions, 878 flow [2023-08-29 17:29:50,588 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 78 transitions, 497 flow, removed 35 selfloop flow, removed 75 redundant places. [2023-08-29 17:29:50,589 INFO L231 Difference]: Finished difference. Result has 87 places, 0 transitions, 0 flow [2023-08-29 17:29:50,589 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=241, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=0, PETRI_PLACES=87, PETRI_TRANSITIONS=0} [2023-08-29 17:29:50,589 INFO L281 CegarLoopForPetriNet]: 45 programPoint places, 42 predicate places. [2023-08-29 17:29:50,590 INFO L495 AbstractCegarLoop]: Abstraction has has 87 places, 0 transitions, 0 flow [2023-08-29 17:29:50,590 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 79.33333333333333) internal successors, (714), 9 states have internal predecessors, (714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 17:29:50,592 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (7 of 8 remaining) [2023-08-29 17:29:50,593 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (6 of 8 remaining) [2023-08-29 17:29:50,593 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (5 of 8 remaining) [2023-08-29 17:29:50,593 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 8 remaining) [2023-08-29 17:29:50,593 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 8 remaining) [2023-08-29 17:29:50,594 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 8 remaining) [2023-08-29 17:29:50,594 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 8 remaining) [2023-08-29 17:29:50,594 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 8 remaining) [2023-08-29 17:29:50,594 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2023-08-29 17:29:50,595 INFO L445 BasicCegarLoop]: Path program histogram: [7, 6, 6, 6, 6, 5, 1, 1, 1, 1, 1] [2023-08-29 17:29:50,599 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-29 17:29:50,599 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-29 17:29:50,601 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 05:29:50 BasicIcfg [2023-08-29 17:29:50,601 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-29 17:29:50,602 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-29 17:29:50,602 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-29 17:29:50,602 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-29 17:29:50,603 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 05:28:24" (3/4) ... [2023-08-29 17:29:50,605 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-29 17:29:50,609 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2023-08-29 17:29:50,613 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2023-08-29 17:29:50,613 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-08-29 17:29:50,613 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-29 17:29:50,647 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-29 17:29:50,647 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-29 17:29:50,648 INFO L158 Benchmark]: Toolchain (without parser) took 87007.32ms. Allocated memory was 81.8MB in the beginning and 2.1GB in the end (delta: 2.0GB). Free memory was 57.8MB in the beginning and 1.2GB in the end (delta: -1.2GB). Peak memory consumption was 862.2MB. Max. memory is 16.1GB. [2023-08-29 17:29:50,648 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 65.0MB. Free memory is still 43.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 17:29:50,649 INFO L158 Benchmark]: CACSL2BoogieTranslator took 617.72ms. Allocated memory is still 81.8MB. Free memory was 57.5MB in the beginning and 52.0MB in the end (delta: 5.6MB). Peak memory consumption was 24.2MB. Max. memory is 16.1GB. [2023-08-29 17:29:50,649 INFO L158 Benchmark]: Boogie Procedure Inliner took 77.35ms. Allocated memory is still 81.8MB. Free memory was 52.0MB in the beginning and 49.5MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 17:29:50,649 INFO L158 Benchmark]: Boogie Preprocessor took 53.80ms. Allocated memory is still 81.8MB. Free memory was 49.5MB in the beginning and 47.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 17:29:50,649 INFO L158 Benchmark]: RCFGBuilder took 459.32ms. Allocated memory is still 81.8MB. Free memory was 47.5MB in the beginning and 31.1MB in the end (delta: 16.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-08-29 17:29:50,650 INFO L158 Benchmark]: TraceAbstraction took 85737.25ms. Allocated memory was 81.8MB in the beginning and 2.1GB in the end (delta: 2.0GB). Free memory was 58.6MB in the beginning and 1.2GB in the end (delta: -1.2GB). Peak memory consumption was 858.0MB. Max. memory is 16.1GB. [2023-08-29 17:29:50,650 INFO L158 Benchmark]: Witness Printer took 45.25ms. Allocated memory is still 2.1GB. Free memory was 1.2GB in the beginning and 1.2GB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 17:29:50,652 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 65.0MB. Free memory is still 43.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 617.72ms. Allocated memory is still 81.8MB. Free memory was 57.5MB in the beginning and 52.0MB in the end (delta: 5.6MB). Peak memory consumption was 24.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 77.35ms. Allocated memory is still 81.8MB. Free memory was 52.0MB in the beginning and 49.5MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 53.80ms. Allocated memory is still 81.8MB. Free memory was 49.5MB in the beginning and 47.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 459.32ms. Allocated memory is still 81.8MB. Free memory was 47.5MB in the beginning and 31.1MB in the end (delta: 16.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 85737.25ms. Allocated memory was 81.8MB in the beginning and 2.1GB in the end (delta: 2.0GB). Free memory was 58.6MB in the beginning and 1.2GB in the end (delta: -1.2GB). Peak memory consumption was 858.0MB. Max. memory is 16.1GB. * Witness Printer took 45.25ms. Allocated memory is still 2.1GB. Free memory was 1.2GB in the beginning and 1.2GB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.6s, 95 PlacesBefore, 45 PlacesAfterwards, 91 TransitionsBefore, 41 TransitionsAfterwards, 1836 CoEnabledTransitionPairs, 6 FixpointIterations, 28 TrivialSequentialCompositions, 22 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 50 TotalNumberOfCompositions, 10947 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2229, independent: 1730, independent conditional: 0, independent unconditional: 1730, dependent: 499, dependent conditional: 0, dependent unconditional: 499, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 709, independent: 665, independent conditional: 0, independent unconditional: 665, dependent: 44, dependent conditional: 0, dependent unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2229, independent: 1065, independent conditional: 0, independent unconditional: 1065, dependent: 455, dependent conditional: 0, dependent unconditional: 455, unknown: 709, unknown conditional: 0, unknown unconditional: 709] , Statistics on independence cache: Total cache size (in pairs): 121, Positive cache size: 85, Positive conditional cache size: 0, Positive unconditional cache size: 85, Negative cache size: 36, Negative conditional cache size: 0, Negative unconditional cache size: 36, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 923]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 923]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 934]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 923]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 923]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 129 locations, 8 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 85.6s, OverallIterations: 41, TraceHistogramMax: 1, PathProgramHistogramMax: 7, EmptinessCheckTime: 0.0s, AutomataDifference: 70.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 10906 SdHoareTripleChecker+Valid, 20.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 8667 mSDsluCounter, 5097 SdHoareTripleChecker+Invalid, 16.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4295 mSDsCounter, 2524 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 36755 IncrementalHoareTripleChecker+Invalid, 39279 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2524 mSolverCounterUnsat, 802 mSDtfsCounter, 36755 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 641 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 540 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 766 ImplicationChecksByTransitivity, 4.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33080occurred in iteration=28, InterpolantAutomatonStates: 380, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 11.3s InterpolantComputationTime, 874 NumberOfCodeBlocks, 874 NumberOfCodeBlocksAsserted, 41 NumberOfCheckSat, 833 ConstructedInterpolants, 0 QuantifiedInterpolants, 14682 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 41 InterpolantComputations, 41 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 5 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-29 17:29:50,673 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE