./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_78-equ_racing.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_78-equ_racing.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 246cd07a930f0cb8d777c2eae74f25d04e3267c275b813f0c0f5232c23299340 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-29 03:00:24,591 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 03:00:24,593 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 03:00:24,633 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 03:00:24,633 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 03:00:24,636 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 03:00:24,638 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 03:00:24,640 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 03:00:24,642 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 03:00:24,647 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 03:00:24,648 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 03:00:24,650 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 03:00:24,650 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 03:00:24,652 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 03:00:24,653 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 03:00:24,656 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 03:00:24,659 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 03:00:24,660 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 03:00:24,662 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 03:00:24,663 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 03:00:24,666 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 03:00:24,667 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 03:00:24,668 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 03:00:24,669 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 03:00:24,671 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 03:00:24,672 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 03:00:24,673 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 03:00:24,673 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 03:00:24,674 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 03:00:24,675 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 03:00:24,675 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 03:00:24,676 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 03:00:24,677 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 03:00:24,678 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 03:00:24,679 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 03:00:24,679 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 03:00:24,679 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 03:00:24,680 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 03:00:24,680 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 03:00:24,680 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 03:00:24,681 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 03:00:24,682 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-29 03:00:24,710 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 03:00:24,710 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 03:00:24,711 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 03:00:24,711 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 03:00:24,712 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 03:00:24,712 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 03:00:24,713 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 03:00:24,713 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 03:00:24,713 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 03:00:24,713 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 03:00:24,714 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 03:00:24,714 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 03:00:24,714 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 03:00:24,714 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 03:00:24,714 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 03:00:24,715 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-29 03:00:24,715 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 03:00:24,715 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-29 03:00:24,715 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-29 03:00:24,715 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 03:00:24,715 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-29 03:00:24,716 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 03:00:24,716 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-29 03:00:24,716 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 03:00:24,716 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 03:00:24,716 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 03:00:24,716 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 03:00:24,717 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 03:00:24,717 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 03:00:24,717 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-29 03:00:24,717 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 03:00:24,717 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 03:00:24,718 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 03:00:24,718 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-29 03:00:24,718 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 03:00:24,718 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 03:00:24,718 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 03:00:24,718 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 246cd07a930f0cb8d777c2eae74f25d04e3267c275b813f0c0f5232c23299340 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-29 03:00:25,007 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 03:00:25,021 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 03:00:25,023 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 03:00:25,024 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 03:00:25,024 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 03:00:25,026 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_78-equ_racing.i [2023-08-29 03:00:26,136 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 03:00:26,360 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 03:00:26,360 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_78-equ_racing.i [2023-08-29 03:00:26,371 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aa91759da/312302e1946041679cf1b1886c9928a9/FLAGcb87fd572 [2023-08-29 03:00:26,390 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aa91759da/312302e1946041679cf1b1886c9928a9 [2023-08-29 03:00:26,392 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 03:00:26,393 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 03:00:26,394 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 03:00:26,394 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 03:00:26,396 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 03:00:26,397 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 03:00:26" (1/1) ... [2023-08-29 03:00:26,398 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7da19cf1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:00:26, skipping insertion in model container [2023-08-29 03:00:26,399 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 03:00:26" (1/1) ... [2023-08-29 03:00:26,403 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 03:00:26,456 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 03:00:26,801 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_78-equ_racing.i[47038,47051] [2023-08-29 03:00:26,838 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 03:00:26,851 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 03:00:26,890 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_78-equ_racing.i[47038,47051] [2023-08-29 03:00:26,906 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 03:00:26,958 INFO L208 MainTranslator]: Completed translation [2023-08-29 03:00:26,958 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:00:26 WrapperNode [2023-08-29 03:00:26,959 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 03:00:26,960 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 03:00:26,960 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 03:00:26,960 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 03:00:26,964 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:00:26" (1/1) ... [2023-08-29 03:00:26,998 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:00:26" (1/1) ... [2023-08-29 03:00:27,032 INFO L138 Inliner]: procedures = 271, calls = 56, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 267 [2023-08-29 03:00:27,037 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 03:00:27,038 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 03:00:27,038 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 03:00:27,038 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 03:00:27,044 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:00:26" (1/1) ... [2023-08-29 03:00:27,045 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:00:26" (1/1) ... [2023-08-29 03:00:27,061 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:00:26" (1/1) ... [2023-08-29 03:00:27,063 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:00:26" (1/1) ... [2023-08-29 03:00:27,072 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:00:26" (1/1) ... [2023-08-29 03:00:27,085 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:00:26" (1/1) ... [2023-08-29 03:00:27,093 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:00:26" (1/1) ... [2023-08-29 03:00:27,094 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:00:26" (1/1) ... [2023-08-29 03:00:27,100 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 03:00:27,101 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 03:00:27,104 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 03:00:27,104 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 03:00:27,105 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:00:26" (1/1) ... [2023-08-29 03:00:27,109 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 03:00:27,118 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 03:00:27,133 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-29 03:00:27,137 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-29 03:00:27,169 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 03:00:27,170 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 03:00:27,170 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-29 03:00:27,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-29 03:00:27,170 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-29 03:00:27,170 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-29 03:00:27,171 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-29 03:00:27,171 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-29 03:00:27,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-29 03:00:27,171 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 03:00:27,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 03:00:27,173 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-29 03:00:27,283 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 03:00:27,285 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 03:00:27,609 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 03:00:27,615 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 03:00:27,615 INFO L302 CfgBuilder]: Removed 22 assume(true) statements. [2023-08-29 03:00:27,617 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 03:00:27 BoogieIcfgContainer [2023-08-29 03:00:27,617 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 03:00:27,620 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 03:00:27,620 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 03:00:27,622 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 03:00:27,623 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 03:00:26" (1/3) ... [2023-08-29 03:00:27,623 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@772a02b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 03:00:27, skipping insertion in model container [2023-08-29 03:00:27,623 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:00:26" (2/3) ... [2023-08-29 03:00:27,624 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@772a02b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 03:00:27, skipping insertion in model container [2023-08-29 03:00:27,624 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 03:00:27" (3/3) ... [2023-08-29 03:00:27,625 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_78-equ_racing.i [2023-08-29 03:00:27,630 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-29 03:00:27,637 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 03:00:27,637 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2023-08-29 03:00:27,638 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 03:00:27,692 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-29 03:00:27,724 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 247 places, 273 transitions, 554 flow [2023-08-29 03:00:27,826 INFO L130 PetriNetUnfolder]: 43/382 cut-off events. [2023-08-29 03:00:27,826 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-29 03:00:27,833 INFO L83 FinitePrefix]: Finished finitePrefix Result has 388 conditions, 382 events. 43/382 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1513 event pairs, 0 based on Foata normal form. 0/319 useless extension candidates. Maximal degree in co-relation 204. Up to 8 conditions per place. [2023-08-29 03:00:27,834 INFO L82 GeneralOperation]: Start removeDead. Operand has 247 places, 273 transitions, 554 flow [2023-08-29 03:00:27,839 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 246 places, 271 transitions, 550 flow [2023-08-29 03:00:27,841 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 03:00:27,848 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 246 places, 271 transitions, 550 flow [2023-08-29 03:00:27,850 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 246 places, 271 transitions, 550 flow [2023-08-29 03:00:27,850 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 246 places, 271 transitions, 550 flow [2023-08-29 03:00:27,920 INFO L130 PetriNetUnfolder]: 42/380 cut-off events. [2023-08-29 03:00:27,920 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-29 03:00:27,925 INFO L83 FinitePrefix]: Finished finitePrefix Result has 386 conditions, 380 events. 42/380 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1539 event pairs, 0 based on Foata normal form. 0/318 useless extension candidates. Maximal degree in co-relation 204. Up to 8 conditions per place. [2023-08-29 03:00:27,934 INFO L119 LiptonReduction]: Number of co-enabled transitions 20700 [2023-08-29 03:00:33,830 INFO L134 LiptonReduction]: Checked pairs total: 113976 [2023-08-29 03:00:33,830 INFO L136 LiptonReduction]: Total number of compositions: 169 [2023-08-29 03:00:33,839 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 03:00:33,843 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;@37a38402, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 03:00:33,843 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2023-08-29 03:00:33,850 INFO L130 PetriNetUnfolder]: 15/84 cut-off events. [2023-08-29 03:00:33,850 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 03:00:33,851 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:00:33,851 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:00:33,851 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [t_funErr4ASSERT_VIOLATIONDATA_RACE, t_funErr1ASSERT_VIOLATIONDATA_RACE, t_funErr3ASSERT_VIOLATIONDATA_RACE, t_funErr4ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-08-29 03:00:33,857 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:00:33,857 INFO L85 PathProgramCache]: Analyzing trace with hash -218579595, now seen corresponding path program 1 times [2023-08-29 03:00:33,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:00:33,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937622414] [2023-08-29 03:00:33,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:00:33,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:00:33,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:00:34,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 03:00:34,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:00:34,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937622414] [2023-08-29 03:00:34,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1937622414] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:00:34,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:00:34,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 03:00:34,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696951373] [2023-08-29 03:00:34,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:00:34,034 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-29 03:00:34,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:00:34,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-29 03:00:34,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-29 03:00:34,050 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 245 out of 442 [2023-08-29 03:00:34,052 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 130 transitions, 268 flow. Second operand has 2 states, 2 states have (on average 247.0) internal successors, (494), 2 states have internal predecessors, (494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:00:34,052 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:00:34,053 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 245 of 442 [2023-08-29 03:00:34,053 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:00:34,243 INFO L130 PetriNetUnfolder]: 398/1540 cut-off events. [2023-08-29 03:00:34,243 INFO L131 PetriNetUnfolder]: For 3/4 co-relation queries the response was YES. [2023-08-29 03:00:34,245 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2324 conditions, 1540 events. 398/1540 cut-off events. For 3/4 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 10783 event pairs, 357 based on Foata normal form. 135/1533 useless extension candidates. Maximal degree in co-relation 2230. Up to 777 conditions per place. [2023-08-29 03:00:34,251 INFO L137 encePairwiseOnDemand]: 421/442 looper letters, 42 selfloop transitions, 0 changer transitions 0/109 dead transitions. [2023-08-29 03:00:34,251 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 109 transitions, 310 flow [2023-08-29 03:00:34,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-29 03:00:34,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-29 03:00:34,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 553 transitions. [2023-08-29 03:00:34,265 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6255656108597285 [2023-08-29 03:00:34,266 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 553 transitions. [2023-08-29 03:00:34,266 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 553 transitions. [2023-08-29 03:00:34,269 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:00:34,270 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 553 transitions. [2023-08-29 03:00:34,275 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 276.5) internal successors, (553), 2 states have internal predecessors, (553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:00:34,280 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 442.0) internal successors, (1326), 3 states have internal predecessors, (1326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:00:34,281 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 442.0) internal successors, (1326), 3 states have internal predecessors, (1326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:00:34,282 INFO L175 Difference]: Start difference. First operand has 109 places, 130 transitions, 268 flow. Second operand 2 states and 553 transitions. [2023-08-29 03:00:34,283 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 109 transitions, 310 flow [2023-08-29 03:00:34,286 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 109 transitions, 310 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 03:00:34,288 INFO L231 Difference]: Finished difference. Result has 110 places, 109 transitions, 226 flow [2023-08-29 03:00:34,290 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=442, PETRI_DIFFERENCE_MINUEND_FLOW=226, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=226, PETRI_PLACES=110, PETRI_TRANSITIONS=109} [2023-08-29 03:00:34,293 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, 1 predicate places. [2023-08-29 03:00:34,294 INFO L495 AbstractCegarLoop]: Abstraction has has 110 places, 109 transitions, 226 flow [2023-08-29 03:00:34,294 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 247.0) internal successors, (494), 2 states have internal predecessors, (494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:00:34,294 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:00:34,294 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:00:34,295 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-29 03:00:34,295 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [t_funErr4ASSERT_VIOLATIONDATA_RACE, t_funErr1ASSERT_VIOLATIONDATA_RACE, t_funErr3ASSERT_VIOLATIONDATA_RACE, t_funErr4ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-08-29 03:00:34,298 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:00:34,298 INFO L85 PathProgramCache]: Analyzing trace with hash 1952686399, now seen corresponding path program 1 times [2023-08-29 03:00:34,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:00:34,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654417289] [2023-08-29 03:00:34,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:00:34,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:00:34,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:00:34,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 03:00:34,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:00:34,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654417289] [2023-08-29 03:00:34,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [654417289] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:00:34,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:00:34,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 03:00:34,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565698565] [2023-08-29 03:00:34,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:00:34,619 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 03:00:34,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:00:34,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 03:00:34,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 03:00:34,900 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 206 out of 442 [2023-08-29 03:00:34,901 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 109 transitions, 226 flow. Second operand has 6 states, 6 states have (on average 207.5) internal successors, (1245), 6 states have internal predecessors, (1245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:00:34,901 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:00:34,901 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 206 of 442 [2023-08-29 03:00:34,901 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:00:35,320 INFO L130 PetriNetUnfolder]: 1393/3610 cut-off events. [2023-08-29 03:00:35,320 INFO L131 PetriNetUnfolder]: For 6/10 co-relation queries the response was YES. [2023-08-29 03:00:35,324 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6481 conditions, 3610 events. 1393/3610 cut-off events. For 6/10 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 25631 event pairs, 525 based on Foata normal form. 1/3355 useless extension candidates. Maximal degree in co-relation 6477. Up to 1930 conditions per place. [2023-08-29 03:00:35,334 INFO L137 encePairwiseOnDemand]: 414/442 looper letters, 141 selfloop transitions, 49 changer transitions 0/227 dead transitions. [2023-08-29 03:00:35,335 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 227 transitions, 845 flow [2023-08-29 03:00:35,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 03:00:35,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 03:00:35,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1429 transitions. [2023-08-29 03:00:35,338 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5388386123680241 [2023-08-29 03:00:35,338 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1429 transitions. [2023-08-29 03:00:35,338 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1429 transitions. [2023-08-29 03:00:35,339 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:00:35,339 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1429 transitions. [2023-08-29 03:00:35,341 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 238.16666666666666) internal successors, (1429), 6 states have internal predecessors, (1429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:00:35,344 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 442.0) internal successors, (3094), 7 states have internal predecessors, (3094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:00:35,346 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 442.0) internal successors, (3094), 7 states have internal predecessors, (3094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:00:35,346 INFO L175 Difference]: Start difference. First operand has 110 places, 109 transitions, 226 flow. Second operand 6 states and 1429 transitions. [2023-08-29 03:00:35,346 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 227 transitions, 845 flow [2023-08-29 03:00:35,348 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 227 transitions, 845 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 03:00:35,350 INFO L231 Difference]: Finished difference. Result has 120 places, 155 transitions, 564 flow [2023-08-29 03:00:35,351 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=442, PETRI_DIFFERENCE_MINUEND_FLOW=226, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=564, PETRI_PLACES=120, PETRI_TRANSITIONS=155} [2023-08-29 03:00:35,351 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, 11 predicate places. [2023-08-29 03:00:35,351 INFO L495 AbstractCegarLoop]: Abstraction has has 120 places, 155 transitions, 564 flow [2023-08-29 03:00:35,352 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 207.5) internal successors, (1245), 6 states have internal predecessors, (1245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:00:35,352 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:00:35,352 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:00:35,353 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-29 03:00:35,353 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr4ASSERT_VIOLATIONDATA_RACE === [t_funErr4ASSERT_VIOLATIONDATA_RACE, t_funErr1ASSERT_VIOLATIONDATA_RACE, t_funErr3ASSERT_VIOLATIONDATA_RACE, t_funErr4ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-08-29 03:00:35,353 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:00:35,354 INFO L85 PathProgramCache]: Analyzing trace with hash 678287048, now seen corresponding path program 1 times [2023-08-29 03:00:35,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:00:35,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41999450] [2023-08-29 03:00:35,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:00:35,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:00:35,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:00:35,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 03:00:35,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:00:35,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41999450] [2023-08-29 03:00:35,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [41999450] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:00:35,542 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:00:35,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 03:00:35,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699690363] [2023-08-29 03:00:35,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:00:35,542 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 03:00:35,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:00:35,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 03:00:35,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 03:00:35,822 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 208 out of 442 [2023-08-29 03:00:35,824 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 155 transitions, 564 flow. Second operand has 6 states, 6 states have (on average 209.83333333333334) internal successors, (1259), 6 states have internal predecessors, (1259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:00:35,824 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:00:35,824 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 208 of 442 [2023-08-29 03:00:35,824 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:00:36,387 INFO L130 PetriNetUnfolder]: 1837/4686 cut-off events. [2023-08-29 03:00:36,387 INFO L131 PetriNetUnfolder]: For 911/980 co-relation queries the response was YES. [2023-08-29 03:00:36,393 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10119 conditions, 4686 events. 1837/4686 cut-off events. For 911/980 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 34494 event pairs, 592 based on Foata normal form. 38/4381 useless extension candidates. Maximal degree in co-relation 10110. Up to 2492 conditions per place. [2023-08-29 03:00:36,406 INFO L137 encePairwiseOnDemand]: 414/442 looper letters, 199 selfloop transitions, 65 changer transitions 0/311 dead transitions. [2023-08-29 03:00:36,406 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 311 transitions, 1539 flow [2023-08-29 03:00:36,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 03:00:36,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 03:00:36,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1455 transitions. [2023-08-29 03:00:36,409 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5486425339366516 [2023-08-29 03:00:36,409 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1455 transitions. [2023-08-29 03:00:36,409 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1455 transitions. [2023-08-29 03:00:36,410 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:00:36,410 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1455 transitions. [2023-08-29 03:00:36,412 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 242.5) internal successors, (1455), 6 states have internal predecessors, (1455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:00:36,415 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 442.0) internal successors, (3094), 7 states have internal predecessors, (3094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:00:36,416 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 442.0) internal successors, (3094), 7 states have internal predecessors, (3094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:00:36,417 INFO L175 Difference]: Start difference. First operand has 120 places, 155 transitions, 564 flow. Second operand 6 states and 1455 transitions. [2023-08-29 03:00:36,417 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 311 transitions, 1539 flow [2023-08-29 03:00:36,422 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 311 transitions, 1539 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 03:00:36,425 INFO L231 Difference]: Finished difference. Result has 130 places, 217 transitions, 1102 flow [2023-08-29 03:00:36,425 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=442, PETRI_DIFFERENCE_MINUEND_FLOW=564, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=155, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=120, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1102, PETRI_PLACES=130, PETRI_TRANSITIONS=217} [2023-08-29 03:00:36,426 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, 21 predicate places. [2023-08-29 03:00:36,426 INFO L495 AbstractCegarLoop]: Abstraction has has 130 places, 217 transitions, 1102 flow [2023-08-29 03:00:36,427 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 209.83333333333334) internal successors, (1259), 6 states have internal predecessors, (1259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:00:36,427 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:00:36,427 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:00:36,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-29 03:00:36,427 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [t_funErr4ASSERT_VIOLATIONDATA_RACE, t_funErr1ASSERT_VIOLATIONDATA_RACE, t_funErr3ASSERT_VIOLATIONDATA_RACE, t_funErr4ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-08-29 03:00:36,428 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:00:36,428 INFO L85 PathProgramCache]: Analyzing trace with hash 57878911, now seen corresponding path program 1 times [2023-08-29 03:00:36,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:00:36,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005721894] [2023-08-29 03:00:36,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:00:36,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:00:36,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:00:36,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 03:00:36,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:00:36,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005721894] [2023-08-29 03:00:36,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005721894] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:00:36,606 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:00:36,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 03:00:36,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762590005] [2023-08-29 03:00:36,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:00:36,607 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 03:00:36,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:00:36,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 03:00:36,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 03:00:36,767 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 442 [2023-08-29 03:00:36,768 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 217 transitions, 1102 flow. Second operand has 6 states, 6 states have (on average 192.5) internal successors, (1155), 6 states have internal predecessors, (1155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:00:36,769 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:00:36,769 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 442 [2023-08-29 03:00:36,769 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:00:37,741 INFO L130 PetriNetUnfolder]: 2933/6641 cut-off events. [2023-08-29 03:00:37,741 INFO L131 PetriNetUnfolder]: For 4528/4596 co-relation queries the response was YES. [2023-08-29 03:00:37,751 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18545 conditions, 6641 events. 2933/6641 cut-off events. For 4528/4596 co-relation queries the response was YES. Maximal size of possible extension queue 128. Compared 47074 event pairs, 1633 based on Foata normal form. 0/6287 useless extension candidates. Maximal degree in co-relation 18531. Up to 5627 conditions per place. [2023-08-29 03:00:37,776 INFO L137 encePairwiseOnDemand]: 415/442 looper letters, 249 selfloop transitions, 115 changer transitions 0/388 dead transitions. [2023-08-29 03:00:37,777 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 388 transitions, 2510 flow [2023-08-29 03:00:37,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 03:00:37,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 03:00:37,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1376 transitions. [2023-08-29 03:00:37,780 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5188536953242836 [2023-08-29 03:00:37,780 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1376 transitions. [2023-08-29 03:00:37,780 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1376 transitions. [2023-08-29 03:00:37,781 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:00:37,781 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1376 transitions. [2023-08-29 03:00:37,783 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 229.33333333333334) internal successors, (1376), 6 states have internal predecessors, (1376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:00:37,786 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 442.0) internal successors, (3094), 7 states have internal predecessors, (3094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:00:37,787 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 442.0) internal successors, (3094), 7 states have internal predecessors, (3094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:00:37,787 INFO L175 Difference]: Start difference. First operand has 130 places, 217 transitions, 1102 flow. Second operand 6 states and 1376 transitions. [2023-08-29 03:00:37,787 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 388 transitions, 2510 flow [2023-08-29 03:00:37,803 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 388 transitions, 2510 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 03:00:37,806 INFO L231 Difference]: Finished difference. Result has 140 places, 322 transitions, 2154 flow [2023-08-29 03:00:37,807 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=442, PETRI_DIFFERENCE_MINUEND_FLOW=1102, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=217, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=168, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2154, PETRI_PLACES=140, PETRI_TRANSITIONS=322} [2023-08-29 03:00:37,807 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, 31 predicate places. [2023-08-29 03:00:37,808 INFO L495 AbstractCegarLoop]: Abstraction has has 140 places, 322 transitions, 2154 flow [2023-08-29 03:00:37,808 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 192.5) internal successors, (1155), 6 states have internal predecessors, (1155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:00:37,808 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:00:37,808 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:00:37,808 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-29 03:00:37,809 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [t_funErr4ASSERT_VIOLATIONDATA_RACE, t_funErr1ASSERT_VIOLATIONDATA_RACE, t_funErr3ASSERT_VIOLATIONDATA_RACE, t_funErr4ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-08-29 03:00:37,809 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:00:37,809 INFO L85 PathProgramCache]: Analyzing trace with hash -594224925, now seen corresponding path program 1 times [2023-08-29 03:00:37,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:00:37,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979697849] [2023-08-29 03:00:37,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:00:37,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:00:37,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:00:38,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 03:00:38,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:00:38,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979697849] [2023-08-29 03:00:38,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [979697849] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:00:38,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:00:38,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 03:00:38,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520470716] [2023-08-29 03:00:38,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:00:38,121 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 03:00:38,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:00:38,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 03:00:38,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 03:00:38,395 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 218 out of 442 [2023-08-29 03:00:38,396 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 322 transitions, 2154 flow. Second operand has 6 states, 6 states have (on average 220.16666666666666) internal successors, (1321), 6 states have internal predecessors, (1321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:00:38,396 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:00:38,396 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 218 of 442 [2023-08-29 03:00:38,396 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:00:39,110 INFO L130 PetriNetUnfolder]: 1967/5146 cut-off events. [2023-08-29 03:00:39,111 INFO L131 PetriNetUnfolder]: For 5100/5201 co-relation queries the response was YES. [2023-08-29 03:00:39,124 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15158 conditions, 5146 events. 1967/5146 cut-off events. For 5100/5201 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 39298 event pairs, 745 based on Foata normal form. 26/4933 useless extension candidates. Maximal degree in co-relation 15139. Up to 3218 conditions per place. [2023-08-29 03:00:39,139 INFO L137 encePairwiseOnDemand]: 427/442 looper letters, 235 selfloop transitions, 77 changer transitions 36/472 dead transitions. [2023-08-29 03:00:39,139 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 472 transitions, 3569 flow [2023-08-29 03:00:39,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 03:00:39,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 03:00:39,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1473 transitions. [2023-08-29 03:00:39,142 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5554298642533937 [2023-08-29 03:00:39,143 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1473 transitions. [2023-08-29 03:00:39,143 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1473 transitions. [2023-08-29 03:00:39,143 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:00:39,144 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1473 transitions. [2023-08-29 03:00:39,146 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 245.5) internal successors, (1473), 6 states have internal predecessors, (1473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:00:39,149 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 442.0) internal successors, (3094), 7 states have internal predecessors, (3094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:00:39,149 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 442.0) internal successors, (3094), 7 states have internal predecessors, (3094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:00:39,149 INFO L175 Difference]: Start difference. First operand has 140 places, 322 transitions, 2154 flow. Second operand 6 states and 1473 transitions. [2023-08-29 03:00:39,149 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 472 transitions, 3569 flow [2023-08-29 03:00:39,168 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 472 transitions, 3435 flow, removed 67 selfloop flow, removed 0 redundant places. [2023-08-29 03:00:39,174 INFO L231 Difference]: Finished difference. Result has 150 places, 396 transitions, 2887 flow [2023-08-29 03:00:39,174 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=442, PETRI_DIFFERENCE_MINUEND_FLOW=2020, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=322, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=299, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2887, PETRI_PLACES=150, PETRI_TRANSITIONS=396} [2023-08-29 03:00:39,175 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, 41 predicate places. [2023-08-29 03:00:39,175 INFO L495 AbstractCegarLoop]: Abstraction has has 150 places, 396 transitions, 2887 flow [2023-08-29 03:00:39,176 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 220.16666666666666) internal successors, (1321), 6 states have internal predecessors, (1321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:00:39,176 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:00:39,176 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:00:39,176 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-29 03:00:39,176 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [t_funErr4ASSERT_VIOLATIONDATA_RACE, t_funErr1ASSERT_VIOLATIONDATA_RACE, t_funErr3ASSERT_VIOLATIONDATA_RACE, t_funErr4ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-08-29 03:00:39,177 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:00:39,177 INFO L85 PathProgramCache]: Analyzing trace with hash 576984675, now seen corresponding path program 1 times [2023-08-29 03:00:39,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:00:39,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223481547] [2023-08-29 03:00:39,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:00:39,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:00:39,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:00:39,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 03:00:39,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:00:39,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223481547] [2023-08-29 03:00:39,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [223481547] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:00:39,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:00:39,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 03:00:39,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73196587] [2023-08-29 03:00:39,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:00:39,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 03:00:39,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:00:39,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 03:00:39,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 03:00:39,614 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 192 out of 442 [2023-08-29 03:00:39,615 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 396 transitions, 2887 flow. Second operand has 6 states, 6 states have (on average 194.83333333333334) internal successors, (1169), 6 states have internal predecessors, (1169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:00:39,616 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:00:39,616 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 192 of 442 [2023-08-29 03:00:39,616 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:00:40,662 INFO L130 PetriNetUnfolder]: 3275/7330 cut-off events. [2023-08-29 03:00:40,663 INFO L131 PetriNetUnfolder]: For 9842/9940 co-relation queries the response was YES. [2023-08-29 03:00:40,686 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24802 conditions, 7330 events. 3275/7330 cut-off events. For 9842/9940 co-relation queries the response was YES. Maximal size of possible extension queue 139. Compared 52705 event pairs, 1553 based on Foata normal form. 0/7006 useless extension candidates. Maximal degree in co-relation 24778. Up to 6168 conditions per place. [2023-08-29 03:00:40,707 INFO L137 encePairwiseOnDemand]: 411/442 looper letters, 428 selfloop transitions, 163 changer transitions 0/616 dead transitions. [2023-08-29 03:00:40,708 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 154 places, 616 transitions, 5069 flow [2023-08-29 03:00:40,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 03:00:40,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 03:00:40,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1418 transitions. [2023-08-29 03:00:40,711 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5346907993966817 [2023-08-29 03:00:40,712 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1418 transitions. [2023-08-29 03:00:40,712 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1418 transitions. [2023-08-29 03:00:40,712 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:00:40,712 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1418 transitions. [2023-08-29 03:00:40,714 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 236.33333333333334) internal successors, (1418), 6 states have internal predecessors, (1418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:00:40,717 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 442.0) internal successors, (3094), 7 states have internal predecessors, (3094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:00:40,718 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 442.0) internal successors, (3094), 7 states have internal predecessors, (3094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:00:40,718 INFO L175 Difference]: Start difference. First operand has 150 places, 396 transitions, 2887 flow. Second operand 6 states and 1418 transitions. [2023-08-29 03:00:40,718 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 154 places, 616 transitions, 5069 flow [2023-08-29 03:00:40,756 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 616 transitions, 5069 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 03:00:40,761 INFO L231 Difference]: Finished difference. Result has 159 places, 529 transitions, 4399 flow [2023-08-29 03:00:40,762 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=442, PETRI_DIFFERENCE_MINUEND_FLOW=2887, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=396, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=56, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=311, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=4399, PETRI_PLACES=159, PETRI_TRANSITIONS=529} [2023-08-29 03:00:40,764 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, 50 predicate places. [2023-08-29 03:00:40,764 INFO L495 AbstractCegarLoop]: Abstraction has has 159 places, 529 transitions, 4399 flow [2023-08-29 03:00:40,765 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 194.83333333333334) internal successors, (1169), 6 states have internal predecessors, (1169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:00:40,765 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:00:40,765 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:00:40,765 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-29 03:00:40,765 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [t_funErr4ASSERT_VIOLATIONDATA_RACE, t_funErr1ASSERT_VIOLATIONDATA_RACE, t_funErr3ASSERT_VIOLATIONDATA_RACE, t_funErr4ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-08-29 03:00:40,765 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:00:40,766 INFO L85 PathProgramCache]: Analyzing trace with hash 577770874, now seen corresponding path program 1 times [2023-08-29 03:00:40,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:00:40,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209607814] [2023-08-29 03:00:40,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:00:40,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:00:40,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:00:40,825 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-29 03:00:40,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:00:40,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209607814] [2023-08-29 03:00:40,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1209607814] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:00:40,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:00:40,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-29 03:00:40,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283894416] [2023-08-29 03:00:40,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:00:40,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 03:00:40,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:00:40,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 03:00:40,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 03:00:40,850 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 228 out of 442 [2023-08-29 03:00:40,850 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 529 transitions, 4399 flow. Second operand has 3 states, 3 states have (on average 232.33333333333334) internal successors, (697), 3 states have internal predecessors, (697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:00:40,850 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:00:40,851 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 228 of 442 [2023-08-29 03:00:40,851 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:00:41,192 INFO L130 PetriNetUnfolder]: 520/2101 cut-off events. [2023-08-29 03:00:41,193 INFO L131 PetriNetUnfolder]: For 3308/3346 co-relation queries the response was YES. [2023-08-29 03:00:41,199 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6959 conditions, 2101 events. 520/2101 cut-off events. For 3308/3346 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 15536 event pairs, 106 based on Foata normal form. 66/2025 useless extension candidates. Maximal degree in co-relation 6930. Up to 475 conditions per place. [2023-08-29 03:00:41,204 INFO L137 encePairwiseOnDemand]: 428/442 looper letters, 78 selfloop transitions, 15 changer transitions 7/221 dead transitions. [2023-08-29 03:00:41,205 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 154 places, 221 transitions, 1847 flow [2023-08-29 03:00:41,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 03:00:41,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 03:00:41,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 766 transitions. [2023-08-29 03:00:41,207 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5776772247360482 [2023-08-29 03:00:41,207 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 766 transitions. [2023-08-29 03:00:41,207 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 766 transitions. [2023-08-29 03:00:41,207 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:00:41,207 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 766 transitions. [2023-08-29 03:00:41,208 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 255.33333333333334) internal successors, (766), 3 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 03:00:41,210 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 442.0) internal successors, (1768), 4 states have internal predecessors, (1768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:00:41,210 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 442.0) internal successors, (1768), 4 states have internal predecessors, (1768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:00:41,211 INFO L175 Difference]: Start difference. First operand has 159 places, 529 transitions, 4399 flow. Second operand 3 states and 766 transitions. [2023-08-29 03:00:41,211 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 154 places, 221 transitions, 1847 flow [2023-08-29 03:00:41,226 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 221 transitions, 1393 flow, removed 147 selfloop flow, removed 24 redundant places. [2023-08-29 03:00:41,228 INFO L231 Difference]: Finished difference. Result has 131 places, 181 transitions, 1022 flow [2023-08-29 03:00:41,228 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=442, PETRI_DIFFERENCE_MINUEND_FLOW=947, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=175, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=160, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1022, PETRI_PLACES=131, PETRI_TRANSITIONS=181} [2023-08-29 03:00:41,229 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, 22 predicate places. [2023-08-29 03:00:41,229 INFO L495 AbstractCegarLoop]: Abstraction has has 131 places, 181 transitions, 1022 flow [2023-08-29 03:00:41,229 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 232.33333333333334) internal successors, (697), 3 states have internal predecessors, (697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:00:41,230 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:00:41,230 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 03:00:41,230 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-29 03:00:41,230 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [t_funErr4ASSERT_VIOLATIONDATA_RACE, t_funErr1ASSERT_VIOLATIONDATA_RACE, t_funErr3ASSERT_VIOLATIONDATA_RACE, t_funErr4ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-08-29 03:00:41,230 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:00:41,230 INFO L85 PathProgramCache]: Analyzing trace with hash -785159667, now seen corresponding path program 1 times [2023-08-29 03:00:41,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:00:41,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623806963] [2023-08-29 03:00:41,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:00:41,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:00:41,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:00:41,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 03:00:41,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:00:41,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623806963] [2023-08-29 03:00:41,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [623806963] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:00:41,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:00:41,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 03:00:41,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024266841] [2023-08-29 03:00:41,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:00:41,446 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 03:00:41,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:00:41,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 03:00:41,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 03:00:41,580 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 442 [2023-08-29 03:00:41,581 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 181 transitions, 1022 flow. Second operand has 6 states, 6 states have (on average 194.66666666666666) internal successors, (1168), 6 states have internal predecessors, (1168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:00:41,581 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:00:41,581 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 442 [2023-08-29 03:00:41,581 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:00:41,958 INFO L130 PetriNetUnfolder]: 1253/3257 cut-off events. [2023-08-29 03:00:41,958 INFO L131 PetriNetUnfolder]: For 3396/3406 co-relation queries the response was YES. [2023-08-29 03:00:41,965 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10121 conditions, 3257 events. 1253/3257 cut-off events. For 3396/3406 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 21850 event pairs, 931 based on Foata normal form. 0/3000 useless extension candidates. Maximal degree in co-relation 10103. Up to 2883 conditions per place. [2023-08-29 03:00:41,972 INFO L137 encePairwiseOnDemand]: 436/442 looper letters, 154 selfloop transitions, 5 changer transitions 21/196 dead transitions. [2023-08-29 03:00:41,972 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 196 transitions, 1422 flow [2023-08-29 03:00:41,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 03:00:41,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 03:00:41,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1240 transitions. [2023-08-29 03:00:41,976 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4675716440422323 [2023-08-29 03:00:41,976 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1240 transitions. [2023-08-29 03:00:41,976 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1240 transitions. [2023-08-29 03:00:41,977 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:00:41,977 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1240 transitions. [2023-08-29 03:00:41,979 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 206.66666666666666) internal successors, (1240), 6 states have internal predecessors, (1240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:00:41,982 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 442.0) internal successors, (3094), 7 states have internal predecessors, (3094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:00:41,982 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 442.0) internal successors, (3094), 7 states have internal predecessors, (3094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:00:41,982 INFO L175 Difference]: Start difference. First operand has 131 places, 181 transitions, 1022 flow. Second operand 6 states and 1240 transitions. [2023-08-29 03:00:41,983 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 196 transitions, 1422 flow [2023-08-29 03:00:42,004 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 196 transitions, 1361 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-29 03:00:42,006 INFO L231 Difference]: Finished difference. Result has 132 places, 167 transitions, 929 flow [2023-08-29 03:00:42,006 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=442, PETRI_DIFFERENCE_MINUEND_FLOW=963, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=180, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=175, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=929, PETRI_PLACES=132, PETRI_TRANSITIONS=167} [2023-08-29 03:00:42,008 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, 23 predicate places. [2023-08-29 03:00:42,008 INFO L495 AbstractCegarLoop]: Abstraction has has 132 places, 167 transitions, 929 flow [2023-08-29 03:00:42,009 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 194.66666666666666) internal successors, (1168), 6 states have internal predecessors, (1168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:00:42,009 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:00:42,009 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:00:42,009 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-29 03:00:42,009 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [t_funErr4ASSERT_VIOLATIONDATA_RACE, t_funErr1ASSERT_VIOLATIONDATA_RACE, t_funErr3ASSERT_VIOLATIONDATA_RACE, t_funErr4ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-08-29 03:00:42,010 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:00:42,010 INFO L85 PathProgramCache]: Analyzing trace with hash -1631164654, now seen corresponding path program 1 times [2023-08-29 03:00:42,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:00:42,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598863856] [2023-08-29 03:00:42,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:00:42,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:00:42,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:00:42,089 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 03:00:42,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:00:42,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598863856] [2023-08-29 03:00:42,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598863856] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-29 03:00:42,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1921568273] [2023-08-29 03:00:42,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:00:42,092 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 03:00:42,093 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 03:00:42,115 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-29 03:00:42,133 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-08-29 03:00:42,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:00:42,226 INFO L263 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 3 conjunts are in the unsatisfiable core [2023-08-29 03:00:42,232 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 03:00:42,914 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 03:00:42,914 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-29 03:00:42,932 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 03:00:42,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1921568273] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-29 03:00:42,934 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-29 03:00:42,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2023-08-29 03:00:42,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382170882] [2023-08-29 03:00:42,935 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-29 03:00:42,936 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 03:00:42,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:00:42,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 03:00:42,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 03:00:42,950 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 240 out of 442 [2023-08-29 03:00:42,952 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 167 transitions, 929 flow. Second operand has 6 states, 6 states have (on average 243.66666666666666) internal successors, (1462), 6 states have internal predecessors, (1462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:00:42,952 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:00:42,952 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 240 of 442 [2023-08-29 03:00:42,952 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:00:42,987 INFO L130 PetriNetUnfolder]: 26/134 cut-off events. [2023-08-29 03:00:42,987 INFO L131 PetriNetUnfolder]: For 51/51 co-relation queries the response was YES. [2023-08-29 03:00:42,988 INFO L83 FinitePrefix]: Finished finitePrefix Result has 317 conditions, 134 events. 26/134 cut-off events. For 51/51 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 257 event pairs, 11 based on Foata normal form. 0/134 useless extension candidates. Maximal degree in co-relation 299. Up to 54 conditions per place. [2023-08-29 03:00:42,989 INFO L137 encePairwiseOnDemand]: 439/442 looper letters, 23 selfloop transitions, 2 changer transitions 7/53 dead transitions. [2023-08-29 03:00:42,989 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 53 transitions, 259 flow [2023-08-29 03:00:42,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-29 03:00:42,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-29 03:00:42,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 993 transitions. [2023-08-29 03:00:42,991 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5616515837104072 [2023-08-29 03:00:42,991 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 993 transitions. [2023-08-29 03:00:42,991 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 993 transitions. [2023-08-29 03:00:42,991 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:00:42,991 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 993 transitions. [2023-08-29 03:00:42,994 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 248.25) internal successors, (993), 4 states have internal predecessors, (993), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:00:42,995 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 442.0) internal successors, (2210), 5 states have internal predecessors, (2210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:00:42,996 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 442.0) internal successors, (2210), 5 states have internal predecessors, (2210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:00:42,996 INFO L175 Difference]: Start difference. First operand has 132 places, 167 transitions, 929 flow. Second operand 4 states and 993 transitions. [2023-08-29 03:00:42,996 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 53 transitions, 259 flow [2023-08-29 03:00:42,997 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 53 transitions, 173 flow, removed 16 selfloop flow, removed 16 redundant places. [2023-08-29 03:00:42,997 INFO L231 Difference]: Finished difference. Result has 51 places, 35 transitions, 79 flow [2023-08-29 03:00:42,998 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=442, PETRI_DIFFERENCE_MINUEND_FLOW=83, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=79, PETRI_PLACES=51, PETRI_TRANSITIONS=35} [2023-08-29 03:00:42,999 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, -58 predicate places. [2023-08-29 03:00:42,999 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 35 transitions, 79 flow [2023-08-29 03:00:43,000 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 243.66666666666666) internal successors, (1462), 6 states have internal predecessors, (1462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:00:43,000 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:00:43,000 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:00:43,020 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-08-29 03:00:43,205 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 03:00:43,206 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [t_funErr4ASSERT_VIOLATIONDATA_RACE, t_funErr1ASSERT_VIOLATIONDATA_RACE, t_funErr3ASSERT_VIOLATIONDATA_RACE, t_funErr4ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-08-29 03:00:43,206 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:00:43,206 INFO L85 PathProgramCache]: Analyzing trace with hash -1701668079, now seen corresponding path program 1 times [2023-08-29 03:00:43,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:00:43,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097999708] [2023-08-29 03:00:43,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:00:43,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:00:43,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:00:43,452 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 03:00:43,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:00:43,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097999708] [2023-08-29 03:00:43,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097999708] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:00:43,452 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:00:43,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 03:00:43,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882944026] [2023-08-29 03:00:43,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:00:43,453 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 03:00:43,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:00:43,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 03:00:43,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 03:00:43,698 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 192 out of 442 [2023-08-29 03:00:43,699 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 35 transitions, 79 flow. Second operand has 6 states, 6 states have (on average 197.0) internal successors, (1182), 6 states have internal predecessors, (1182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:00:43,699 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:00:43,699 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 192 of 442 [2023-08-29 03:00:43,699 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:00:43,767 INFO L130 PetriNetUnfolder]: 52/146 cut-off events. [2023-08-29 03:00:43,767 INFO L131 PetriNetUnfolder]: For 26/26 co-relation queries the response was YES. [2023-08-29 03:00:43,768 INFO L83 FinitePrefix]: Finished finitePrefix Result has 323 conditions, 146 events. 52/146 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 239 event pairs, 44 based on Foata normal form. 3/149 useless extension candidates. Maximal degree in co-relation 313. Up to 116 conditions per place. [2023-08-29 03:00:43,768 INFO L137 encePairwiseOnDemand]: 437/442 looper letters, 0 selfloop transitions, 0 changer transitions 42/42 dead transitions. [2023-08-29 03:00:43,768 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 42 transitions, 177 flow [2023-08-29 03:00:43,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 03:00:43,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 03:00:43,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1191 transitions. [2023-08-29 03:00:43,772 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4490950226244344 [2023-08-29 03:00:43,772 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1191 transitions. [2023-08-29 03:00:43,772 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1191 transitions. [2023-08-29 03:00:43,772 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:00:43,773 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1191 transitions. [2023-08-29 03:00:43,775 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 198.5) internal successors, (1191), 6 states have internal predecessors, (1191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:00:43,778 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 442.0) internal successors, (3094), 7 states have internal predecessors, (3094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:00:43,779 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 442.0) internal successors, (3094), 7 states have internal predecessors, (3094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:00:43,779 INFO L175 Difference]: Start difference. First operand has 51 places, 35 transitions, 79 flow. Second operand 6 states and 1191 transitions. [2023-08-29 03:00:43,779 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 42 transitions, 177 flow [2023-08-29 03:00:43,780 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 42 transitions, 170 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 03:00:43,780 INFO L231 Difference]: Finished difference. Result has 49 places, 0 transitions, 0 flow [2023-08-29 03:00:43,781 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=442, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=49, PETRI_TRANSITIONS=0} [2023-08-29 03:00:43,781 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, -60 predicate places. [2023-08-29 03:00:43,781 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 0 transitions, 0 flow [2023-08-29 03:00:43,782 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 197.0) internal successors, (1182), 6 states have internal predecessors, (1182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:00:43,784 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr4ASSERT_VIOLATIONDATA_RACE (15 of 16 remaining) [2023-08-29 03:00:43,785 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (14 of 16 remaining) [2023-08-29 03:00:43,785 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONDATA_RACE (13 of 16 remaining) [2023-08-29 03:00:43,785 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr4ASSERT_VIOLATIONDATA_RACE (12 of 16 remaining) [2023-08-29 03:00:43,785 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONDATA_RACE (11 of 16 remaining) [2023-08-29 03:00:43,785 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (10 of 16 remaining) [2023-08-29 03:00:43,785 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (9 of 16 remaining) [2023-08-29 03:00:43,785 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (8 of 16 remaining) [2023-08-29 03:00:43,786 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 16 remaining) [2023-08-29 03:00:43,786 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONDATA_RACE (6 of 16 remaining) [2023-08-29 03:00:43,786 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (5 of 16 remaining) [2023-08-29 03:00:43,786 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (4 of 16 remaining) [2023-08-29 03:00:43,786 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (3 of 16 remaining) [2023-08-29 03:00:43,786 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (2 of 16 remaining) [2023-08-29 03:00:43,787 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (1 of 16 remaining) [2023-08-29 03:00:43,787 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 16 remaining) [2023-08-29 03:00:43,787 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-29 03:00:43,787 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:00:43,789 INFO L307 ceAbstractionStarter]: Result for error location AllErrorsAtOnce was SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE (1/2) [2023-08-29 03:00:43,794 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 247 places, 273 transitions, 554 flow [2023-08-29 03:00:43,823 INFO L130 PetriNetUnfolder]: 43/382 cut-off events. [2023-08-29 03:00:43,823 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-29 03:00:43,825 INFO L83 FinitePrefix]: Finished finitePrefix Result has 388 conditions, 382 events. 43/382 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1513 event pairs, 0 based on Foata normal form. 0/319 useless extension candidates. Maximal degree in co-relation 204. Up to 8 conditions per place. [2023-08-29 03:00:43,825 INFO L82 GeneralOperation]: Start removeDead. Operand has 247 places, 273 transitions, 554 flow [2023-08-29 03:00:43,827 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 242 places, 266 transitions, 537 flow [2023-08-29 03:00:43,827 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 03:00:43,827 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 242 places, 266 transitions, 537 flow [2023-08-29 03:00:43,827 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 242 places, 266 transitions, 537 flow [2023-08-29 03:00:43,827 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 242 places, 266 transitions, 537 flow [2023-08-29 03:00:43,870 INFO L130 PetriNetUnfolder]: 41/375 cut-off events. [2023-08-29 03:00:43,876 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 03:00:43,878 INFO L83 FinitePrefix]: Finished finitePrefix Result has 380 conditions, 375 events. 41/375 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1481 event pairs, 0 based on Foata normal form. 0/313 useless extension candidates. Maximal degree in co-relation 204. Up to 8 conditions per place. [2023-08-29 03:00:43,885 INFO L119 LiptonReduction]: Number of co-enabled transitions 20700 [2023-08-29 03:00:48,504 INFO L134 LiptonReduction]: Checked pairs total: 102307 [2023-08-29 03:00:48,504 INFO L136 LiptonReduction]: Total number of compositions: 163 [2023-08-29 03:00:48,505 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-29 03:00:48,505 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;@37a38402, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 03:00:48,505 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-29 03:00:48,508 INFO L130 PetriNetUnfolder]: 6/32 cut-off events. [2023-08-29 03:00:48,508 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 03:00:48,508 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:00:48,508 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2023-08-29 03:00:48,508 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-29 03:00:48,508 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:00:48,509 INFO L85 PathProgramCache]: Analyzing trace with hash -1483016064, now seen corresponding path program 1 times [2023-08-29 03:00:48,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:00:48,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346003195] [2023-08-29 03:00:48,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:00:48,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:00:48,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-29 03:00:48,518 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-29 03:00:48,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-29 03:00:48,537 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-29 03:00:48,537 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-29 03:00:48,538 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-29 03:00:48,538 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-29 03:00:48,538 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-29 03:00:48,539 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (2/2) [2023-08-29 03:00:48,539 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-29 03:00:48,539 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-08-29 03:00:48,563 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-29 03:00:48,566 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 328 places, 365 transitions, 748 flow [2023-08-29 03:00:48,644 INFO L130 PetriNetUnfolder]: 72/613 cut-off events. [2023-08-29 03:00:48,644 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2023-08-29 03:00:48,649 INFO L83 FinitePrefix]: Finished finitePrefix Result has 627 conditions, 613 events. 72/613 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 3007 event pairs, 0 based on Foata normal form. 0/508 useless extension candidates. Maximal degree in co-relation 384. Up to 12 conditions per place. [2023-08-29 03:00:48,649 INFO L82 GeneralOperation]: Start removeDead. Operand has 328 places, 365 transitions, 748 flow [2023-08-29 03:00:48,652 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 327 places, 363 transitions, 744 flow [2023-08-29 03:00:48,653 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 03:00:48,653 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 327 places, 363 transitions, 744 flow [2023-08-29 03:00:48,653 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 327 places, 363 transitions, 744 flow [2023-08-29 03:00:48,653 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 327 places, 363 transitions, 744 flow [2023-08-29 03:00:48,698 INFO L130 PetriNetUnfolder]: 71/611 cut-off events. [2023-08-29 03:00:48,699 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2023-08-29 03:00:48,702 INFO L83 FinitePrefix]: Finished finitePrefix Result has 625 conditions, 611 events. 71/611 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 3018 event pairs, 0 based on Foata normal form. 0/507 useless extension candidates. Maximal degree in co-relation 382. Up to 12 conditions per place. [2023-08-29 03:00:48,721 INFO L119 LiptonReduction]: Number of co-enabled transitions 59580 [2023-08-29 03:00:52,827 INFO L134 LiptonReduction]: Checked pairs total: 300701 [2023-08-29 03:00:52,827 INFO L136 LiptonReduction]: Total number of compositions: 210 [2023-08-29 03:00:52,829 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 03:00:52,830 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;@37a38402, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 03:00:52,830 INFO L358 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2023-08-29 03:00:52,842 INFO L130 PetriNetUnfolder]: 13/72 cut-off events. [2023-08-29 03:00:52,849 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-29 03:00:52,849 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:00:52,849 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:00:52,849 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr3ASSERT_VIOLATIONDATA_RACE, t_funErr1ASSERT_VIOLATIONDATA_RACE, t_funErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2023-08-29 03:00:52,850 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:00:52,850 INFO L85 PathProgramCache]: Analyzing trace with hash 902487861, now seen corresponding path program 1 times [2023-08-29 03:00:52,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:00:52,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903273590] [2023-08-29 03:00:52,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:00:52,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:00:52,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:00:52,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 03:00:52,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:00:52,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903273590] [2023-08-29 03:00:52,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [903273590] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:00:52,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:00:52,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 03:00:52,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202572122] [2023-08-29 03:00:52,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:00:52,883 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-29 03:00:52,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:00:52,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-29 03:00:52,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-29 03:00:52,884 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 323 out of 575 [2023-08-29 03:00:52,885 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 160 places, 192 transitions, 402 flow. Second operand has 2 states, 2 states have (on average 325.0) internal successors, (650), 2 states have internal predecessors, (650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:00:52,885 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:00:52,885 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 323 of 575 [2023-08-29 03:00:52,885 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:00:55,128 INFO L130 PetriNetUnfolder]: 14723/34693 cut-off events. [2023-08-29 03:00:55,128 INFO L131 PetriNetUnfolder]: For 187/238 co-relation queries the response was YES. [2023-08-29 03:00:55,195 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56063 conditions, 34693 events. 14723/34693 cut-off events. For 187/238 co-relation queries the response was YES. Maximal size of possible extension queue 879. Compared 374405 event pairs, 13600 based on Foata normal form. 5781/37193 useless extension candidates. Maximal degree in co-relation 26692. Up to 21257 conditions per place. [2023-08-29 03:00:55,292 INFO L137 encePairwiseOnDemand]: 543/575 looper letters, 61 selfloop transitions, 0 changer transitions 0/160 dead transitions. [2023-08-29 03:00:55,292 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 160 transitions, 460 flow [2023-08-29 03:00:55,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-29 03:00:55,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-29 03:00:55,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 739 transitions. [2023-08-29 03:00:55,294 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6426086956521739 [2023-08-29 03:00:55,294 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 739 transitions. [2023-08-29 03:00:55,294 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 739 transitions. [2023-08-29 03:00:55,294 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:00:55,295 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 739 transitions. [2023-08-29 03:00:55,296 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 369.5) internal successors, (739), 2 states have internal predecessors, (739), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:00:55,297 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 575.0) internal successors, (1725), 3 states have internal predecessors, (1725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:00:55,297 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 575.0) internal successors, (1725), 3 states have internal predecessors, (1725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:00:55,298 INFO L175 Difference]: Start difference. First operand has 160 places, 192 transitions, 402 flow. Second operand 2 states and 739 transitions. [2023-08-29 03:00:55,298 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 160 transitions, 460 flow [2023-08-29 03:00:55,299 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 161 places, 160 transitions, 460 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 03:00:55,300 INFO L231 Difference]: Finished difference. Result has 161 places, 160 transitions, 338 flow [2023-08-29 03:00:55,300 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=575, PETRI_DIFFERENCE_MINUEND_FLOW=338, PETRI_DIFFERENCE_MINUEND_PLACES=160, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=160, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=160, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=338, PETRI_PLACES=161, PETRI_TRANSITIONS=160} [2023-08-29 03:00:55,301 INFO L281 CegarLoopForPetriNet]: 160 programPoint places, 1 predicate places. [2023-08-29 03:00:55,301 INFO L495 AbstractCegarLoop]: Abstraction has has 161 places, 160 transitions, 338 flow [2023-08-29 03:00:55,301 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 325.0) internal successors, (650), 2 states have internal predecessors, (650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:00:55,301 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:00:55,301 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:00:55,302 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-29 03:00:55,302 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr3ASSERT_VIOLATIONDATA_RACE, t_funErr1ASSERT_VIOLATIONDATA_RACE, t_funErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2023-08-29 03:00:55,302 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:00:55,302 INFO L85 PathProgramCache]: Analyzing trace with hash 790723660, now seen corresponding path program 1 times [2023-08-29 03:00:55,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:00:55,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548623993] [2023-08-29 03:00:55,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:00:55,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:00:55,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:00:55,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 03:00:55,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:00:55,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548623993] [2023-08-29 03:00:55,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [548623993] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:00:55,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:00:55,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 03:00:55,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812079149] [2023-08-29 03:00:55,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:00:55,417 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 03:00:55,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:00:55,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 03:00:55,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 03:00:55,731 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 276 out of 575 [2023-08-29 03:00:55,732 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 160 transitions, 338 flow. Second operand has 6 states, 6 states have (on average 277.5) internal successors, (1665), 6 states have internal predecessors, (1665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:00:55,732 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:00:55,733 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 276 of 575 [2023-08-29 03:00:55,733 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:01:05,546 INFO L130 PetriNetUnfolder]: 74611/132543 cut-off events. [2023-08-29 03:01:05,546 INFO L131 PetriNetUnfolder]: For 416/479 co-relation queries the response was YES. [2023-08-29 03:01:05,734 INFO L83 FinitePrefix]: Finished finitePrefix Result has 244740 conditions, 132543 events. 74611/132543 cut-off events. For 416/479 co-relation queries the response was YES. Maximal size of possible extension queue 2834. Compared 1313312 event pairs, 36705 based on Foata normal form. 17/123476 useless extension candidates. Maximal degree in co-relation 244735. Up to 80781 conditions per place. [2023-08-29 03:01:06,105 INFO L137 encePairwiseOnDemand]: 539/575 looper letters, 227 selfloop transitions, 81 changer transitions 0/371 dead transitions. [2023-08-29 03:01:06,106 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 166 places, 371 transitions, 1382 flow [2023-08-29 03:01:06,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 03:01:06,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 03:01:06,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1967 transitions. [2023-08-29 03:01:06,109 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5701449275362319 [2023-08-29 03:01:06,109 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1967 transitions. [2023-08-29 03:01:06,109 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1967 transitions. [2023-08-29 03:01:06,110 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:01:06,110 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1967 transitions. [2023-08-29 03:01:06,113 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 327.8333333333333) internal successors, (1967), 6 states have internal predecessors, (1967), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:01:06,116 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 575.0) internal successors, (4025), 7 states have internal predecessors, (4025), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:01:06,116 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 575.0) internal successors, (4025), 7 states have internal predecessors, (4025), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:01:06,116 INFO L175 Difference]: Start difference. First operand has 161 places, 160 transitions, 338 flow. Second operand 6 states and 1967 transitions. [2023-08-29 03:01:06,117 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 166 places, 371 transitions, 1382 flow [2023-08-29 03:01:06,118 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 371 transitions, 1382 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 03:01:06,121 INFO L231 Difference]: Finished difference. Result has 171 places, 238 transitions, 884 flow [2023-08-29 03:01:06,121 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=575, PETRI_DIFFERENCE_MINUEND_FLOW=338, PETRI_DIFFERENCE_MINUEND_PLACES=161, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=160, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=884, PETRI_PLACES=171, PETRI_TRANSITIONS=238} [2023-08-29 03:01:06,122 INFO L281 CegarLoopForPetriNet]: 160 programPoint places, 11 predicate places. [2023-08-29 03:01:06,122 INFO L495 AbstractCegarLoop]: Abstraction has has 171 places, 238 transitions, 884 flow [2023-08-29 03:01:06,122 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 277.5) internal successors, (1665), 6 states have internal predecessors, (1665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:01:06,122 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:01:06,122 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:01:06,122 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-29 03:01:06,123 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr4ASSERT_VIOLATIONDATA_RACE === [t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr3ASSERT_VIOLATIONDATA_RACE, t_funErr1ASSERT_VIOLATIONDATA_RACE, t_funErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2023-08-29 03:01:06,123 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:01:06,123 INFO L85 PathProgramCache]: Analyzing trace with hash -1683003529, now seen corresponding path program 1 times [2023-08-29 03:01:06,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:01:06,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465692475] [2023-08-29 03:01:06,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:01:06,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:01:06,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:01:06,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 03:01:06,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:01:06,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465692475] [2023-08-29 03:01:06,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [465692475] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:01:06,236 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:01:06,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 03:01:06,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686466463] [2023-08-29 03:01:06,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:01:06,236 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 03:01:06,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:01:06,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 03:01:06,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 03:01:06,627 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 258 out of 575 [2023-08-29 03:01:06,628 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 171 places, 238 transitions, 884 flow. Second operand has 6 states, 6 states have (on average 259.8333333333333) internal successors, (1559), 6 states have internal predecessors, (1559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:01:06,628 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:01:06,628 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 258 of 575 [2023-08-29 03:01:06,628 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:01:44,439 INFO L130 PetriNetUnfolder]: 268335/463478 cut-off events. [2023-08-29 03:01:44,440 INFO L131 PetriNetUnfolder]: For 130428/137644 co-relation queries the response was YES. [2023-08-29 03:01:45,877 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1036607 conditions, 463478 events. 268335/463478 cut-off events. For 130428/137644 co-relation queries the response was YES. Maximal size of possible extension queue 7782. Compared 4960462 event pairs, 59044 based on Foata normal form. 2786/433108 useless extension candidates. Maximal degree in co-relation 1036597. Up to 185116 conditions per place. [2023-08-29 03:01:47,532 INFO L137 encePairwiseOnDemand]: 511/575 looper letters, 586 selfloop transitions, 300 changer transitions 0/944 dead transitions. [2023-08-29 03:01:47,532 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 176 places, 944 transitions, 5360 flow [2023-08-29 03:01:47,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 03:01:47,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 03:01:47,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2100 transitions. [2023-08-29 03:01:47,537 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6086956521739131 [2023-08-29 03:01:47,537 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2100 transitions. [2023-08-29 03:01:47,537 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2100 transitions. [2023-08-29 03:01:47,538 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:01:47,538 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2100 transitions. [2023-08-29 03:01:47,541 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 350.0) internal successors, (2100), 6 states have internal predecessors, (2100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:01:47,545 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 575.0) internal successors, (4025), 7 states have internal predecessors, (4025), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:01:47,545 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 575.0) internal successors, (4025), 7 states have internal predecessors, (4025), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:01:47,545 INFO L175 Difference]: Start difference. First operand has 171 places, 238 transitions, 884 flow. Second operand 6 states and 2100 transitions. [2023-08-29 03:01:47,546 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 176 places, 944 transitions, 5360 flow [2023-08-29 03:01:49,568 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 176 places, 944 transitions, 5360 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 03:01:49,575 INFO L231 Difference]: Finished difference. Result has 181 places, 562 transitions, 3920 flow [2023-08-29 03:01:49,575 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=575, PETRI_DIFFERENCE_MINUEND_FLOW=884, PETRI_DIFFERENCE_MINUEND_PLACES=171, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=238, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=60, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=114, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3920, PETRI_PLACES=181, PETRI_TRANSITIONS=562} [2023-08-29 03:01:49,576 INFO L281 CegarLoopForPetriNet]: 160 programPoint places, 21 predicate places. [2023-08-29 03:01:49,576 INFO L495 AbstractCegarLoop]: Abstraction has has 181 places, 562 transitions, 3920 flow [2023-08-29 03:01:49,576 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 259.8333333333333) internal successors, (1559), 6 states have internal predecessors, (1559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:01:49,576 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:01:49,576 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:01:49,576 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-29 03:01:49,577 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr3ASSERT_VIOLATIONDATA_RACE, t_funErr1ASSERT_VIOLATIONDATA_RACE, t_funErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2023-08-29 03:01:49,577 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:01:49,577 INFO L85 PathProgramCache]: Analyzing trace with hash 1422057176, now seen corresponding path program 1 times [2023-08-29 03:01:49,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:01:49,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540646050] [2023-08-29 03:01:49,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:01:49,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:01:49,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:01:49,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 03:01:49,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:01:49,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540646050] [2023-08-29 03:01:49,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [540646050] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:01:49,717 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:01:49,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 03:01:49,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300130688] [2023-08-29 03:01:49,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:01:49,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 03:01:49,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:01:49,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 03:01:49,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 03:01:49,923 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 248 out of 575 [2023-08-29 03:01:49,924 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 181 places, 562 transitions, 3920 flow. Second operand has 6 states, 6 states have (on average 250.5) internal successors, (1503), 6 states have internal predecessors, (1503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:01:49,924 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:01:49,924 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 248 of 575 [2023-08-29 03:01:49,924 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:03:06,602 INFO L130 PetriNetUnfolder]: 393193/649058 cut-off events. [2023-08-29 03:03:06,603 INFO L131 PetriNetUnfolder]: For 677419/690398 co-relation queries the response was YES. [2023-08-29 03:03:09,459 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1979357 conditions, 649058 events. 393193/649058 cut-off events. For 677419/690398 co-relation queries the response was YES. Maximal size of possible extension queue 8962. Compared 6606490 event pairs, 185337 based on Foata normal form. 231/622867 useless extension candidates. Maximal degree in co-relation 1979342. Up to 564968 conditions per place. [2023-08-29 03:03:12,120 INFO L137 encePairwiseOnDemand]: 528/575 looper letters, 698 selfloop transitions, 312 changer transitions 0/1051 dead transitions. [2023-08-29 03:03:12,120 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 1051 transitions, 8420 flow [2023-08-29 03:03:12,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 03:03:12,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 03:03:12,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1901 transitions. [2023-08-29 03:03:12,124 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5510144927536232 [2023-08-29 03:03:12,125 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1901 transitions. [2023-08-29 03:03:12,125 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1901 transitions. [2023-08-29 03:03:12,125 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:03:12,126 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1901 transitions. [2023-08-29 03:03:12,129 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 316.8333333333333) internal successors, (1901), 6 states have internal predecessors, (1901), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:03:12,132 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 575.0) internal successors, (4025), 7 states have internal predecessors, (4025), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:03:12,133 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 575.0) internal successors, (4025), 7 states have internal predecessors, (4025), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:03:12,133 INFO L175 Difference]: Start difference. First operand has 181 places, 562 transitions, 3920 flow. Second operand 6 states and 1901 transitions. [2023-08-29 03:03:12,133 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 1051 transitions, 8420 flow [2023-08-29 03:03:18,557 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 186 places, 1051 transitions, 8420 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 03:03:18,573 INFO L231 Difference]: Finished difference. Result has 191 places, 864 transitions, 7216 flow [2023-08-29 03:03:18,574 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=575, PETRI_DIFFERENCE_MINUEND_FLOW=3920, PETRI_DIFFERENCE_MINUEND_PLACES=181, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=562, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=72, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=436, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=7216, PETRI_PLACES=191, PETRI_TRANSITIONS=864} [2023-08-29 03:03:18,574 INFO L281 CegarLoopForPetriNet]: 160 programPoint places, 31 predicate places. [2023-08-29 03:03:18,574 INFO L495 AbstractCegarLoop]: Abstraction has has 191 places, 864 transitions, 7216 flow [2023-08-29 03:03:18,575 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 250.5) internal successors, (1503), 6 states have internal predecessors, (1503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:03:18,575 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:03:18,575 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:03:18,575 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-08-29 03:03:18,575 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr3ASSERT_VIOLATIONDATA_RACE, t_funErr1ASSERT_VIOLATIONDATA_RACE, t_funErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2023-08-29 03:03:18,576 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:03:18,576 INFO L85 PathProgramCache]: Analyzing trace with hash 489045447, now seen corresponding path program 1 times [2023-08-29 03:03:18,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:03:18,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062401627] [2023-08-29 03:03:18,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:03:18,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:03:18,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:03:18,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 03:03:18,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:03:18,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062401627] [2023-08-29 03:03:18,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2062401627] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:03:18,738 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:03:18,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 03:03:18,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454275377] [2023-08-29 03:03:18,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:03:18,739 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 03:03:18,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:03:18,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 03:03:18,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 03:03:19,126 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 288 out of 575 [2023-08-29 03:03:19,127 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 191 places, 864 transitions, 7216 flow. Second operand has 6 states, 6 states have (on average 290.1666666666667) internal successors, (1741), 6 states have internal predecessors, (1741), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:03:19,127 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:03:19,127 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 288 of 575 [2023-08-29 03:03:19,127 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand