./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/pthread-deagle/circular_buffer_ok.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/pthread-deagle/circular_buffer_ok.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 8fcb457b1bed8494a9a3b58e82500f367f4337ac38b5a41a5dad0da896f97e40 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-31 21:57:20,962 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-31 21:57:20,964 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-31 21:57:20,990 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-31 21:57:20,990 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-31 21:57:20,993 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-31 21:57:20,997 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-31 21:57:21,000 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-31 21:57:21,002 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-31 21:57:21,004 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-31 21:57:21,005 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-31 21:57:21,006 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-31 21:57:21,006 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-31 21:57:21,007 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-31 21:57:21,008 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-31 21:57:21,009 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-31 21:57:21,009 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-31 21:57:21,010 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-31 21:57:21,011 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-31 21:57:21,013 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-31 21:57:21,024 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-31 21:57:21,025 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-31 21:57:21,026 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-31 21:57:21,027 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-31 21:57:21,030 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-31 21:57:21,030 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-31 21:57:21,030 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-31 21:57:21,031 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-31 21:57:21,031 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-31 21:57:21,032 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-31 21:57:21,033 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-31 21:57:21,033 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-31 21:57:21,034 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-31 21:57:21,035 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-31 21:57:21,036 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-31 21:57:21,036 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-31 21:57:21,036 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-31 21:57:21,037 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-31 21:57:21,037 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-31 21:57:21,038 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-31 21:57:21,038 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-31 21:57:21,039 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-31 21:57:21,059 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-31 21:57:21,059 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-31 21:57:21,060 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-31 21:57:21,060 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-31 21:57:21,060 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-31 21:57:21,061 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-31 21:57:21,061 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-31 21:57:21,062 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-31 21:57:21,062 INFO L138 SettingsManager]: * Use SBE=true [2023-08-31 21:57:21,062 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-31 21:57:21,062 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-31 21:57:21,062 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-31 21:57:21,063 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-31 21:57:21,063 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-31 21:57:21,063 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-31 21:57:21,063 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-31 21:57:21,064 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-31 21:57:21,064 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-31 21:57:21,064 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-31 21:57:21,064 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-31 21:57:21,065 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-31 21:57:21,065 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-31 21:57:21,065 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-31 21:57:21,065 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-31 21:57:21,065 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-31 21:57:21,066 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-31 21:57:21,066 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 21:57:21,066 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-31 21:57:21,066 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-31 21:57:21,067 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-31 21:57:21,067 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-31 21:57:21,067 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-31 21:57:21,067 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-31 21:57:21,067 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-31 21:57:21,068 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-31 21:57:21,068 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-31 21:57:21,068 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-31 21:57:21,068 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8fcb457b1bed8494a9a3b58e82500f367f4337ac38b5a41a5dad0da896f97e40 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-08-31 21:57:21,327 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-31 21:57:21,350 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-31 21:57:21,352 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-31 21:57:21,353 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-31 21:57:21,353 INFO L275 PluginConnector]: CDTParser initialized [2023-08-31 21:57:21,355 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-deagle/circular_buffer_ok.i [2023-08-31 21:57:22,637 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-31 21:57:22,920 INFO L351 CDTParser]: Found 1 translation units. [2023-08-31 21:57:22,920 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-deagle/circular_buffer_ok.i [2023-08-31 21:57:22,930 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b1972687b/bedfe51bcd8a47f79d4b9912e0159b33/FLAG2648f9e00 [2023-08-31 21:57:22,945 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b1972687b/bedfe51bcd8a47f79d4b9912e0159b33 [2023-08-31 21:57:22,948 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-31 21:57:22,949 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-31 21:57:22,951 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-31 21:57:22,951 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-31 21:57:22,954 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-31 21:57:22,955 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 09:57:22" (1/1) ... [2023-08-31 21:57:22,957 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61bcca87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:57:22, skipping insertion in model container [2023-08-31 21:57:22,957 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 09:57:22" (1/1) ... [2023-08-31 21:57:22,964 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-31 21:57:23,002 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-31 21:57:23,326 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-deagle/circular_buffer_ok.i[30451,30464] [2023-08-31 21:57:23,330 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-deagle/circular_buffer_ok.i[30681,30694] [2023-08-31 21:57:23,341 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-deagle/circular_buffer_ok.i[30979,30992] [2023-08-31 21:57:23,350 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 21:57:23,364 INFO L203 MainTranslator]: Completed pre-run [2023-08-31 21:57:23,418 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-deagle/circular_buffer_ok.i[30451,30464] [2023-08-31 21:57:23,420 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-deagle/circular_buffer_ok.i[30681,30694] [2023-08-31 21:57:23,422 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-deagle/circular_buffer_ok.i[30979,30992] [2023-08-31 21:57:23,428 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 21:57:23,478 INFO L208 MainTranslator]: Completed translation [2023-08-31 21:57:23,489 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:57:23 WrapperNode [2023-08-31 21:57:23,489 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-31 21:57:23,490 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-31 21:57:23,491 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-31 21:57:23,491 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-31 21:57:23,497 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:57:23" (1/1) ... [2023-08-31 21:57:23,528 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:57:23" (1/1) ... [2023-08-31 21:57:23,564 INFO L138 Inliner]: procedures = 168, calls = 36, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 250 [2023-08-31 21:57:23,565 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-31 21:57:23,566 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-31 21:57:23,566 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-31 21:57:23,566 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-31 21:57:23,574 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:57:23" (1/1) ... [2023-08-31 21:57:23,575 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:57:23" (1/1) ... [2023-08-31 21:57:23,590 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:57:23" (1/1) ... [2023-08-31 21:57:23,597 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:57:23" (1/1) ... [2023-08-31 21:57:23,606 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:57:23" (1/1) ... [2023-08-31 21:57:23,618 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:57:23" (1/1) ... [2023-08-31 21:57:23,620 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:57:23" (1/1) ... [2023-08-31 21:57:23,621 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:57:23" (1/1) ... [2023-08-31 21:57:23,631 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-31 21:57:23,632 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-31 21:57:23,632 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-31 21:57:23,632 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-31 21:57:23,633 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:57:23" (1/1) ... [2023-08-31 21:57:23,639 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 21:57:23,650 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 21:57:23,660 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-31 21:57:23,681 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-31 21:57:23,692 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-31 21:57:23,692 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2023-08-31 21:57:23,692 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2023-08-31 21:57:23,692 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2023-08-31 21:57:23,692 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2023-08-31 21:57:23,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-31 21:57:23,693 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-31 21:57:23,693 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-31 21:57:23,693 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-31 21:57:23,693 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-31 21:57:23,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-08-31 21:57:23,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-31 21:57:23,694 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-31 21:57:23,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-31 21:57:23,695 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-31 21:57:23,817 INFO L236 CfgBuilder]: Building ICFG [2023-08-31 21:57:23,818 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-31 21:57:24,224 INFO L277 CfgBuilder]: Performing block encoding [2023-08-31 21:57:24,233 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-31 21:57:24,234 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-08-31 21:57:24,236 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 09:57:24 BoogieIcfgContainer [2023-08-31 21:57:24,236 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-31 21:57:24,238 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-31 21:57:24,238 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-31 21:57:24,241 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-31 21:57:24,241 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.08 09:57:22" (1/3) ... [2023-08-31 21:57:24,242 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a43932e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 09:57:24, skipping insertion in model container [2023-08-31 21:57:24,242 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:57:23" (2/3) ... [2023-08-31 21:57:24,242 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a43932e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 09:57:24, skipping insertion in model container [2023-08-31 21:57:24,242 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 09:57:24" (3/3) ... [2023-08-31 21:57:24,243 INFO L112 eAbstractionObserver]: Analyzing ICFG circular_buffer_ok.i [2023-08-31 21:57:24,250 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-31 21:57:24,258 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-31 21:57:24,258 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 33 error locations. [2023-08-31 21:57:24,258 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-31 21:57:24,374 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-31 21:57:24,405 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 282 places, 288 transitions, 592 flow [2023-08-31 21:57:24,504 INFO L130 PetriNetUnfolder]: 13/286 cut-off events. [2023-08-31 21:57:24,505 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-31 21:57:24,526 INFO L83 FinitePrefix]: Finished finitePrefix Result has 295 conditions, 286 events. 13/286 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 785 event pairs, 0 based on Foata normal form. 0/240 useless extension candidates. Maximal degree in co-relation 200. Up to 2 conditions per place. [2023-08-31 21:57:24,526 INFO L82 GeneralOperation]: Start removeDead. Operand has 282 places, 288 transitions, 592 flow [2023-08-31 21:57:24,533 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 271 places, 277 transitions, 563 flow [2023-08-31 21:57:24,536 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-31 21:57:24,548 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 271 places, 277 transitions, 563 flow [2023-08-31 21:57:24,558 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 271 places, 277 transitions, 563 flow [2023-08-31 21:57:24,559 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 271 places, 277 transitions, 563 flow [2023-08-31 21:57:24,636 INFO L130 PetriNetUnfolder]: 13/277 cut-off events. [2023-08-31 21:57:24,636 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-31 21:57:24,641 INFO L83 FinitePrefix]: Finished finitePrefix Result has 285 conditions, 277 events. 13/277 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 722 event pairs, 0 based on Foata normal form. 0/231 useless extension candidates. Maximal degree in co-relation 200. Up to 2 conditions per place. [2023-08-31 21:57:24,652 INFO L119 LiptonReduction]: Number of co-enabled transitions 22158 [2023-08-31 21:57:30,125 INFO L134 LiptonReduction]: Checked pairs total: 118575 [2023-08-31 21:57:30,125 INFO L136 LiptonReduction]: Total number of compositions: 216 [2023-08-31 21:57:30,138 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-31 21:57:30,144 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;@93c3bd, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-31 21:57:30,144 INFO L358 AbstractCegarLoop]: Starting to check reachability of 60 error locations. [2023-08-31 21:57:30,146 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-31 21:57:30,146 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 21:57:30,146 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:57:30,147 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-31 21:57:30,147 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-08-31 21:57:30,151 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:57:30,151 INFO L85 PathProgramCache]: Analyzing trace with hash 1062, now seen corresponding path program 1 times [2023-08-31 21:57:30,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:57:30,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116866535] [2023-08-31 21:57:30,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:57:30,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:57:30,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:57:30,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:57:30,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:57:30,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116866535] [2023-08-31 21:57:30,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2116866535] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:57:30,248 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:57:30,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-31 21:57:30,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368541933] [2023-08-31 21:57:30,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:57:30,256 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-31 21:57:30,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:57:30,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-31 21:57:30,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-31 21:57:30,280 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 276 out of 504 [2023-08-31 21:57:30,282 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 122 transitions, 253 flow. Second operand has 2 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) [2023-08-31 21:57:30,283 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:57:30,283 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 276 of 504 [2023-08-31 21:57:30,284 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:57:30,664 INFO L130 PetriNetUnfolder]: 1329/3228 cut-off events. [2023-08-31 21:57:30,665 INFO L131 PetriNetUnfolder]: For 70/70 co-relation queries the response was YES. [2023-08-31 21:57:30,669 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5375 conditions, 3228 events. 1329/3228 cut-off events. For 70/70 co-relation queries the response was YES. Maximal size of possible extension queue 132. Compared 23748 event pairs, 1017 based on Foata normal form. 74/2637 useless extension candidates. Maximal degree in co-relation 5110. Up to 2085 conditions per place. [2023-08-31 21:57:30,684 INFO L137 encePairwiseOnDemand]: 492/504 looper letters, 50 selfloop transitions, 0 changer transitions 0/110 dead transitions. [2023-08-31 21:57:30,684 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 110 transitions, 329 flow [2023-08-31 21:57:30,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-31 21:57:30,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-31 21:57:30,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 614 transitions. [2023-08-31 21:57:30,702 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6091269841269841 [2023-08-31 21:57:30,703 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 614 transitions. [2023-08-31 21:57:30,703 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 614 transitions. [2023-08-31 21:57:30,706 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:57:30,709 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 614 transitions. [2023-08-31 21:57:30,713 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 307.0) internal successors, (614), 2 states have internal predecessors, (614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:57:30,720 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 504.0) internal successors, (1512), 3 states have internal predecessors, (1512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:57:30,721 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 504.0) internal successors, (1512), 3 states have internal predecessors, (1512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:57:30,722 INFO L175 Difference]: Start difference. First operand has 119 places, 122 transitions, 253 flow. Second operand 2 states and 614 transitions. [2023-08-31 21:57:30,724 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 110 transitions, 329 flow [2023-08-31 21:57:30,727 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 110 transitions, 324 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-31 21:57:30,730 INFO L231 Difference]: Finished difference. Result has 107 places, 110 transitions, 224 flow [2023-08-31 21:57:30,732 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=504, PETRI_DIFFERENCE_MINUEND_FLOW=224, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=224, PETRI_PLACES=107, PETRI_TRANSITIONS=110} [2023-08-31 21:57:30,737 INFO L281 CegarLoopForPetriNet]: 119 programPoint places, -12 predicate places. [2023-08-31 21:57:30,738 INFO L495 AbstractCegarLoop]: Abstraction has has 107 places, 110 transitions, 224 flow [2023-08-31 21:57:30,740 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 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) [2023-08-31 21:57:30,741 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:57:30,741 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-31 21:57:30,741 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-31 21:57:30,742 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t1Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-08-31 21:57:30,749 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:57:30,749 INFO L85 PathProgramCache]: Analyzing trace with hash 1207225463, now seen corresponding path program 1 times [2023-08-31 21:57:30,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:57:30,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107761666] [2023-08-31 21:57:30,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:57:30,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:57:30,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:57:30,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:57:30,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:57:30,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107761666] [2023-08-31 21:57:30,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107761666] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:57:30,879 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:57:30,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 21:57:30,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705566639] [2023-08-31 21:57:30,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:57:30,882 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 21:57:30,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:57:30,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 21:57:30,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 21:57:30,903 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 270 out of 504 [2023-08-31 21:57:30,904 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 110 transitions, 224 flow. Second operand has 3 states, 3 states have (on average 272.0) internal successors, (816), 3 states have internal predecessors, (816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:57:30,905 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:57:30,905 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 270 of 504 [2023-08-31 21:57:30,905 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:57:31,469 INFO L130 PetriNetUnfolder]: 2737/6173 cut-off events. [2023-08-31 21:57:31,470 INFO L131 PetriNetUnfolder]: For 18/43 co-relation queries the response was YES. [2023-08-31 21:57:31,477 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10515 conditions, 6173 events. 2737/6173 cut-off events. For 18/43 co-relation queries the response was YES. Maximal size of possible extension queue 163. Compared 46899 event pairs, 656 based on Foata normal form. 1/5075 useless extension candidates. Maximal degree in co-relation 10512. Up to 2308 conditions per place. [2023-08-31 21:57:31,503 INFO L137 encePairwiseOnDemand]: 499/504 looper letters, 97 selfloop transitions, 4 changer transitions 0/157 dead transitions. [2023-08-31 21:57:31,503 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 157 transitions, 523 flow [2023-08-31 21:57:31,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 21:57:31,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 21:57:31,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 912 transitions. [2023-08-31 21:57:31,506 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6031746031746031 [2023-08-31 21:57:31,506 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 912 transitions. [2023-08-31 21:57:31,506 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 912 transitions. [2023-08-31 21:57:31,507 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:57:31,507 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 912 transitions. [2023-08-31 21:57:31,509 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 304.0) internal successors, (912), 3 states have internal predecessors, (912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:57:31,511 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 504.0) internal successors, (2016), 4 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:57:31,512 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 504.0) internal successors, (2016), 4 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:57:31,513 INFO L175 Difference]: Start difference. First operand has 107 places, 110 transitions, 224 flow. Second operand 3 states and 912 transitions. [2023-08-31 21:57:31,513 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 157 transitions, 523 flow [2023-08-31 21:57:31,514 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 157 transitions, 523 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 21:57:31,516 INFO L231 Difference]: Finished difference. Result has 111 places, 114 transitions, 258 flow [2023-08-31 21:57:31,516 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=504, PETRI_DIFFERENCE_MINUEND_FLOW=224, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=258, PETRI_PLACES=111, PETRI_TRANSITIONS=114} [2023-08-31 21:57:31,517 INFO L281 CegarLoopForPetriNet]: 119 programPoint places, -8 predicate places. [2023-08-31 21:57:31,517 INFO L495 AbstractCegarLoop]: Abstraction has has 111 places, 114 transitions, 258 flow [2023-08-31 21:57:31,518 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 272.0) internal successors, (816), 3 states have internal predecessors, (816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:57:31,518 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:57:31,518 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:57:31,518 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-31 21:57:31,519 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t2Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-08-31 21:57:31,519 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:57:31,519 INFO L85 PathProgramCache]: Analyzing trace with hash 1661037478, now seen corresponding path program 1 times [2023-08-31 21:57:31,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:57:31,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723833538] [2023-08-31 21:57:31,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:57:31,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:57:31,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:57:31,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:57:31,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:57:31,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723833538] [2023-08-31 21:57:31,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [723833538] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:57:31,626 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:57:31,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 21:57:31,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224760459] [2023-08-31 21:57:31,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:57:31,627 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 21:57:31,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:57:31,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 21:57:31,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 21:57:31,644 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 270 out of 504 [2023-08-31 21:57:31,645 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 114 transitions, 258 flow. Second operand has 3 states, 3 states have (on average 272.6666666666667) internal successors, (818), 3 states have internal predecessors, (818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:57:31,645 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:57:31,645 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 270 of 504 [2023-08-31 21:57:31,645 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:57:32,501 INFO L130 PetriNetUnfolder]: 3985/8710 cut-off events. [2023-08-31 21:57:32,501 INFO L131 PetriNetUnfolder]: For 209/209 co-relation queries the response was YES. [2023-08-31 21:57:32,516 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15351 conditions, 8710 events. 3985/8710 cut-off events. For 209/209 co-relation queries the response was YES. Maximal size of possible extension queue 227. Compared 70243 event pairs, 1032 based on Foata normal form. 0/7169 useless extension candidates. Maximal degree in co-relation 15346. Up to 3192 conditions per place. [2023-08-31 21:57:32,559 INFO L137 encePairwiseOnDemand]: 499/504 looper letters, 92 selfloop transitions, 4 changer transitions 0/157 dead transitions. [2023-08-31 21:57:32,559 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 157 transitions, 537 flow [2023-08-31 21:57:32,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 21:57:32,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 21:57:32,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 906 transitions. [2023-08-31 21:57:32,562 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5992063492063492 [2023-08-31 21:57:32,562 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 906 transitions. [2023-08-31 21:57:32,563 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 906 transitions. [2023-08-31 21:57:32,563 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:57:32,563 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 906 transitions. [2023-08-31 21:57:32,565 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 302.0) internal successors, (906), 3 states have internal predecessors, (906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:57:32,568 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 504.0) internal successors, (2016), 4 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:57:32,569 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 504.0) internal successors, (2016), 4 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:57:32,569 INFO L175 Difference]: Start difference. First operand has 111 places, 114 transitions, 258 flow. Second operand 3 states and 906 transitions. [2023-08-31 21:57:32,570 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 157 transitions, 537 flow [2023-08-31 21:57:32,573 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 157 transitions, 529 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-31 21:57:32,575 INFO L231 Difference]: Finished difference. Result has 113 places, 118 transitions, 284 flow [2023-08-31 21:57:32,575 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=504, PETRI_DIFFERENCE_MINUEND_FLOW=250, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=284, PETRI_PLACES=113, PETRI_TRANSITIONS=118} [2023-08-31 21:57:32,576 INFO L281 CegarLoopForPetriNet]: 119 programPoint places, -6 predicate places. [2023-08-31 21:57:32,577 INFO L495 AbstractCegarLoop]: Abstraction has has 113 places, 118 transitions, 284 flow [2023-08-31 21:57:32,577 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 272.6666666666667) internal successors, (818), 3 states have internal predecessors, (818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:57:32,577 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:57:32,578 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:57:32,578 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-31 21:57:32,578 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t1Err1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-08-31 21:57:32,578 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:57:32,579 INFO L85 PathProgramCache]: Analyzing trace with hash -1601411185, now seen corresponding path program 1 times [2023-08-31 21:57:32,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:57:32,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90222658] [2023-08-31 21:57:32,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:57:32,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:57:32,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:57:32,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:57:32,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:57:32,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90222658] [2023-08-31 21:57:32,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [90222658] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:57:32,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:57:32,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 21:57:32,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946403268] [2023-08-31 21:57:32,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:57:32,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 21:57:32,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:57:32,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 21:57:32,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 21:57:32,642 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 256 out of 504 [2023-08-31 21:57:32,643 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 118 transitions, 284 flow. Second operand has 3 states, 3 states have (on average 258.3333333333333) internal successors, (775), 3 states have internal predecessors, (775), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:57:32,643 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:57:32,643 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 256 of 504 [2023-08-31 21:57:32,644 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:57:33,544 INFO L130 PetriNetUnfolder]: 4842/10557 cut-off events. [2023-08-31 21:57:33,544 INFO L131 PetriNetUnfolder]: For 545/545 co-relation queries the response was YES. [2023-08-31 21:57:33,561 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19347 conditions, 10557 events. 4842/10557 cut-off events. For 545/545 co-relation queries the response was YES. Maximal size of possible extension queue 220. Compared 84664 event pairs, 3591 based on Foata normal form. 0/8969 useless extension candidates. Maximal degree in co-relation 19341. Up to 7434 conditions per place. [2023-08-31 21:57:33,595 INFO L137 encePairwiseOnDemand]: 494/504 looper letters, 83 selfloop transitions, 5 changer transitions 0/142 dead transitions. [2023-08-31 21:57:33,595 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 142 transitions, 526 flow [2023-08-31 21:57:33,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 21:57:33,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 21:57:33,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 854 transitions. [2023-08-31 21:57:33,598 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5648148148148148 [2023-08-31 21:57:33,598 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 854 transitions. [2023-08-31 21:57:33,598 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 854 transitions. [2023-08-31 21:57:33,598 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:57:33,599 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 854 transitions. [2023-08-31 21:57:33,600 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 284.6666666666667) internal successors, (854), 3 states have internal predecessors, (854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:57:33,603 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 504.0) internal successors, (2016), 4 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:57:33,604 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 504.0) internal successors, (2016), 4 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:57:33,604 INFO L175 Difference]: Start difference. First operand has 113 places, 118 transitions, 284 flow. Second operand 3 states and 854 transitions. [2023-08-31 21:57:33,604 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 142 transitions, 526 flow [2023-08-31 21:57:33,608 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 142 transitions, 514 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-31 21:57:33,610 INFO L231 Difference]: Finished difference. Result has 111 places, 117 transitions, 302 flow [2023-08-31 21:57:33,610 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=504, PETRI_DIFFERENCE_MINUEND_FLOW=268, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=302, PETRI_PLACES=111, PETRI_TRANSITIONS=117} [2023-08-31 21:57:33,611 INFO L281 CegarLoopForPetriNet]: 119 programPoint places, -8 predicate places. [2023-08-31 21:57:33,611 INFO L495 AbstractCegarLoop]: Abstraction has has 111 places, 117 transitions, 302 flow [2023-08-31 21:57:33,612 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 258.3333333333333) internal successors, (775), 3 states have internal predecessors, (775), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:57:33,612 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:57:33,612 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:57:33,612 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-31 21:57:33,613 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-08-31 21:57:33,613 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:57:33,613 INFO L85 PathProgramCache]: Analyzing trace with hash -686748799, now seen corresponding path program 1 times [2023-08-31 21:57:33,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:57:33,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354842321] [2023-08-31 21:57:33,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:57:33,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:57:33,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:57:34,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:57:34,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:57:34,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354842321] [2023-08-31 21:57:34,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [354842321] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:57:34,001 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:57:34,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 21:57:34,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685143437] [2023-08-31 21:57:34,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:57:34,002 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 21:57:34,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:57:34,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 21:57:34,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 21:57:34,111 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 266 out of 504 [2023-08-31 21:57:34,113 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 117 transitions, 302 flow. Second operand has 6 states, 6 states have (on average 267.6666666666667) internal successors, (1606), 6 states have internal predecessors, (1606), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:57:34,113 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:57:34,113 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 266 of 504 [2023-08-31 21:57:34,113 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:57:38,037 INFO L130 PetriNetUnfolder]: 30178/54245 cut-off events. [2023-08-31 21:57:38,038 INFO L131 PetriNetUnfolder]: For 7457/7457 co-relation queries the response was YES. [2023-08-31 21:57:38,125 INFO L83 FinitePrefix]: Finished finitePrefix Result has 107526 conditions, 54245 events. 30178/54245 cut-off events. For 7457/7457 co-relation queries the response was YES. Maximal size of possible extension queue 1059. Compared 481951 event pairs, 9224 based on Foata normal form. 0/45787 useless extension candidates. Maximal degree in co-relation 107519. Up to 25050 conditions per place. [2023-08-31 21:57:38,339 INFO L137 encePairwiseOnDemand]: 497/504 looper letters, 255 selfloop transitions, 9 changer transitions 0/319 dead transitions. [2023-08-31 21:57:38,339 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 319 transitions, 1363 flow [2023-08-31 21:57:38,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 21:57:38,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 21:57:38,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1831 transitions. [2023-08-31 21:57:38,344 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.605489417989418 [2023-08-31 21:57:38,344 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1831 transitions. [2023-08-31 21:57:38,344 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1831 transitions. [2023-08-31 21:57:38,345 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:57:38,346 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1831 transitions. [2023-08-31 21:57:38,349 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 305.1666666666667) internal successors, (1831), 6 states have internal predecessors, (1831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:57:38,354 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 504.0) internal successors, (3528), 7 states have internal predecessors, (3528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:57:38,356 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 504.0) internal successors, (3528), 7 states have internal predecessors, (3528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:57:38,356 INFO L175 Difference]: Start difference. First operand has 111 places, 117 transitions, 302 flow. Second operand 6 states and 1831 transitions. [2023-08-31 21:57:38,358 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 319 transitions, 1363 flow [2023-08-31 21:57:38,392 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 319 transitions, 1329 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-31 21:57:38,396 INFO L231 Difference]: Finished difference. Result has 119 places, 125 transitions, 356 flow [2023-08-31 21:57:38,396 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=504, PETRI_DIFFERENCE_MINUEND_FLOW=292, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=111, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=356, PETRI_PLACES=119, PETRI_TRANSITIONS=125} [2023-08-31 21:57:38,398 INFO L281 CegarLoopForPetriNet]: 119 programPoint places, 0 predicate places. [2023-08-31 21:57:38,399 INFO L495 AbstractCegarLoop]: Abstraction has has 119 places, 125 transitions, 356 flow [2023-08-31 21:57:38,400 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 267.6666666666667) internal successors, (1606), 6 states have internal predecessors, (1606), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:57:38,400 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:57:38,400 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:57:38,400 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-31 21:57:38,401 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t1Err2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-08-31 21:57:38,401 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:57:38,401 INFO L85 PathProgramCache]: Analyzing trace with hash -1357834767, now seen corresponding path program 1 times [2023-08-31 21:57:38,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:57:38,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334765754] [2023-08-31 21:57:38,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:57:38,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:57:38,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:57:38,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:57:38,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:57:38,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334765754] [2023-08-31 21:57:38,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [334765754] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:57:38,446 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:57:38,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 21:57:38,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076813178] [2023-08-31 21:57:38,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:57:38,447 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 21:57:38,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:57:38,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 21:57:38,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 21:57:38,464 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 260 out of 504 [2023-08-31 21:57:38,465 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 125 transitions, 356 flow. Second operand has 3 states, 3 states have (on average 262.6666666666667) internal successors, (788), 3 states have internal predecessors, (788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:57:38,465 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:57:38,465 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 260 of 504 [2023-08-31 21:57:38,466 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:57:40,785 INFO L130 PetriNetUnfolder]: 15666/34452 cut-off events. [2023-08-31 21:57:40,785 INFO L131 PetriNetUnfolder]: For 4439/4601 co-relation queries the response was YES. [2023-08-31 21:57:40,849 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67228 conditions, 34452 events. 15666/34452 cut-off events. For 4439/4601 co-relation queries the response was YES. Maximal size of possible extension queue 742. Compared 334911 event pairs, 3002 based on Foata normal form. 0/29297 useless extension candidates. Maximal degree in co-relation 67217. Up to 24327 conditions per place. [2023-08-31 21:57:40,962 INFO L137 encePairwiseOnDemand]: 497/504 looper letters, 98 selfloop transitions, 2 changer transitions 0/154 dead transitions. [2023-08-31 21:57:40,963 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 154 transitions, 629 flow [2023-08-31 21:57:40,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 21:57:40,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 21:57:40,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 873 transitions. [2023-08-31 21:57:40,965 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5773809523809523 [2023-08-31 21:57:40,965 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 873 transitions. [2023-08-31 21:57:40,966 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 873 transitions. [2023-08-31 21:57:40,966 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:57:40,966 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 873 transitions. [2023-08-31 21:57:40,968 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 291.0) internal successors, (873), 3 states have internal predecessors, (873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:57:40,970 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 504.0) internal successors, (2016), 4 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:57:40,971 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 504.0) internal successors, (2016), 4 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:57:40,971 INFO L175 Difference]: Start difference. First operand has 119 places, 125 transitions, 356 flow. Second operand 3 states and 873 transitions. [2023-08-31 21:57:40,971 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 154 transitions, 629 flow [2023-08-31 21:57:40,978 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 154 transitions, 629 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 21:57:40,980 INFO L231 Difference]: Finished difference. Result has 117 places, 122 transitions, 360 flow [2023-08-31 21:57:40,981 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=504, PETRI_DIFFERENCE_MINUEND_FLOW=346, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=360, PETRI_PLACES=117, PETRI_TRANSITIONS=122} [2023-08-31 21:57:40,981 INFO L281 CegarLoopForPetriNet]: 119 programPoint places, -2 predicate places. [2023-08-31 21:57:40,981 INFO L495 AbstractCegarLoop]: Abstraction has has 117 places, 122 transitions, 360 flow [2023-08-31 21:57:40,982 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 262.6666666666667) internal successors, (788), 3 states have internal predecessors, (788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:57:40,982 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:57:40,982 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:57:40,982 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-31 21:57:40,982 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t2Err8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-08-31 21:57:40,983 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:57:40,983 INFO L85 PathProgramCache]: Analyzing trace with hash 1026723325, now seen corresponding path program 1 times [2023-08-31 21:57:40,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:57:40,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011139722] [2023-08-31 21:57:40,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:57:40,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:57:40,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:57:41,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:57:41,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:57:41,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011139722] [2023-08-31 21:57:41,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2011139722] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:57:41,010 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:57:41,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 21:57:41,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828137317] [2023-08-31 21:57:41,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:57:41,011 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 21:57:41,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:57:41,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 21:57:41,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 21:57:41,017 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 272 out of 504 [2023-08-31 21:57:41,018 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 122 transitions, 360 flow. Second operand has 3 states, 3 states have (on average 276.0) internal successors, (828), 3 states have internal predecessors, (828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:57:41,019 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:57:41,019 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 272 of 504 [2023-08-31 21:57:41,019 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:57:44,738 INFO L130 PetriNetUnfolder]: 22533/50616 cut-off events. [2023-08-31 21:57:44,739 INFO L131 PetriNetUnfolder]: For 5866/6157 co-relation queries the response was YES. [2023-08-31 21:57:44,857 INFO L83 FinitePrefix]: Finished finitePrefix Result has 99149 conditions, 50616 events. 22533/50616 cut-off events. For 5866/6157 co-relation queries the response was YES. Maximal size of possible extension queue 1100. Compared 539777 event pairs, 8535 based on Foata normal form. 0/42158 useless extension candidates. Maximal degree in co-relation 99137. Up to 20385 conditions per place. [2023-08-31 21:57:45,016 INFO L137 encePairwiseOnDemand]: 499/504 looper letters, 114 selfloop transitions, 4 changer transitions 0/178 dead transitions. [2023-08-31 21:57:45,016 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 178 transitions, 753 flow [2023-08-31 21:57:45,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 21:57:45,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 21:57:45,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 915 transitions. [2023-08-31 21:57:45,024 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6051587301587301 [2023-08-31 21:57:45,024 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 915 transitions. [2023-08-31 21:57:45,024 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 915 transitions. [2023-08-31 21:57:45,026 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:57:45,026 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 915 transitions. [2023-08-31 21:57:45,030 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 305.0) internal successors, (915), 3 states have internal predecessors, (915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:57:45,034 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 504.0) internal successors, (2016), 4 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:57:45,035 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 504.0) internal successors, (2016), 4 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:57:45,035 INFO L175 Difference]: Start difference. First operand has 117 places, 122 transitions, 360 flow. Second operand 3 states and 915 transitions. [2023-08-31 21:57:45,035 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 178 transitions, 753 flow [2023-08-31 21:57:45,042 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 178 transitions, 753 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 21:57:45,044 INFO L231 Difference]: Finished difference. Result has 121 places, 126 transitions, 394 flow [2023-08-31 21:57:45,044 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=504, PETRI_DIFFERENCE_MINUEND_FLOW=360, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=394, PETRI_PLACES=121, PETRI_TRANSITIONS=126} [2023-08-31 21:57:45,045 INFO L281 CegarLoopForPetriNet]: 119 programPoint places, 2 predicate places. [2023-08-31 21:57:45,045 INFO L495 AbstractCegarLoop]: Abstraction has has 121 places, 126 transitions, 394 flow [2023-08-31 21:57:45,046 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 276.0) internal successors, (828), 3 states have internal predecessors, (828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:57:45,046 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:57:45,046 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:57:45,046 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-31 21:57:45,046 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t1Err11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-08-31 21:57:45,047 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:57:45,047 INFO L85 PathProgramCache]: Analyzing trace with hash -1244267314, now seen corresponding path program 1 times [2023-08-31 21:57:45,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:57:45,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542981629] [2023-08-31 21:57:45,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:57:45,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:57:45,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:57:45,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:57:45,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:57:45,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542981629] [2023-08-31 21:57:45,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1542981629] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:57:45,113 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:57:45,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-31 21:57:45,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185006430] [2023-08-31 21:57:45,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:57:45,114 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 21:57:45,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:57:45,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 21:57:45,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 21:57:45,126 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 272 out of 504 [2023-08-31 21:57:45,127 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 126 transitions, 394 flow. Second operand has 3 states, 3 states have (on average 275.0) internal successors, (825), 3 states have internal predecessors, (825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:57:45,127 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:57:45,127 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 272 of 504 [2023-08-31 21:57:45,127 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:57:50,611 INFO L130 PetriNetUnfolder]: 30399/70835 cut-off events. [2023-08-31 21:57:50,611 INFO L131 PetriNetUnfolder]: For 13222/13742 co-relation queries the response was YES. [2023-08-31 21:57:50,816 INFO L83 FinitePrefix]: Finished finitePrefix Result has 142987 conditions, 70835 events. 30399/70835 cut-off events. For 13222/13742 co-relation queries the response was YES. Maximal size of possible extension queue 1560. Compared 817902 event pairs, 15411 based on Foata normal form. 0/61206 useless extension candidates. Maximal degree in co-relation 142973. Up to 36216 conditions per place. [2023-08-31 21:57:51,043 INFO L137 encePairwiseOnDemand]: 499/504 looper letters, 116 selfloop transitions, 3 changer transitions 0/182 dead transitions. [2023-08-31 21:57:51,044 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 182 transitions, 808 flow [2023-08-31 21:57:51,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 21:57:51,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 21:57:51,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 911 transitions. [2023-08-31 21:57:51,047 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6025132275132276 [2023-08-31 21:57:51,047 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 911 transitions. [2023-08-31 21:57:51,047 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 911 transitions. [2023-08-31 21:57:51,048 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:57:51,048 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 911 transitions. [2023-08-31 21:57:51,050 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 303.6666666666667) internal successors, (911), 3 states have internal predecessors, (911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:57:51,052 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 504.0) internal successors, (2016), 4 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:57:51,053 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 504.0) internal successors, (2016), 4 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:57:51,053 INFO L175 Difference]: Start difference. First operand has 121 places, 126 transitions, 394 flow. Second operand 3 states and 911 transitions. [2023-08-31 21:57:51,053 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 182 transitions, 808 flow [2023-08-31 21:57:51,135 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 182 transitions, 794 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-31 21:57:51,137 INFO L231 Difference]: Finished difference. Result has 122 places, 128 transitions, 407 flow [2023-08-31 21:57:51,137 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=504, PETRI_DIFFERENCE_MINUEND_FLOW=386, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=407, PETRI_PLACES=122, PETRI_TRANSITIONS=128} [2023-08-31 21:57:51,138 INFO L281 CegarLoopForPetriNet]: 119 programPoint places, 3 predicate places. [2023-08-31 21:57:51,138 INFO L495 AbstractCegarLoop]: Abstraction has has 122 places, 128 transitions, 407 flow [2023-08-31 21:57:51,138 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 275.0) internal successors, (825), 3 states have internal predecessors, (825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:57:51,139 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:57:51,139 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:57:51,139 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-31 21:57:51,139 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t2Err7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-08-31 21:57:51,139 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:57:51,140 INFO L85 PathProgramCache]: Analyzing trace with hash 1763680429, now seen corresponding path program 1 times [2023-08-31 21:57:51,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:57:51,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245009467] [2023-08-31 21:57:51,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:57:51,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:57:51,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:57:51,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:57:51,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:57:51,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245009467] [2023-08-31 21:57:51,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1245009467] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:57:51,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:57:51,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-31 21:57:51,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392386143] [2023-08-31 21:57:51,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:57:51,177 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 21:57:51,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:57:51,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 21:57:51,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 21:57:51,186 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 267 out of 504 [2023-08-31 21:57:51,187 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 128 transitions, 407 flow. Second operand has 3 states, 3 states have (on average 270.6666666666667) internal successors, (812), 3 states have internal predecessors, (812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:57:51,188 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:57:51,188 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 267 of 504 [2023-08-31 21:57:51,188 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:57:57,054 INFO L130 PetriNetUnfolder]: 31089/70990 cut-off events. [2023-08-31 21:57:57,055 INFO L131 PetriNetUnfolder]: For 13588/14128 co-relation queries the response was YES. [2023-08-31 21:57:57,262 INFO L83 FinitePrefix]: Finished finitePrefix Result has 148466 conditions, 70990 events. 31089/70990 cut-off events. For 13588/14128 co-relation queries the response was YES. Maximal size of possible extension queue 1580. Compared 814175 event pairs, 19223 based on Foata normal form. 1239/64116 useless extension candidates. Maximal degree in co-relation 148451. Up to 48777 conditions per place. [2023-08-31 21:57:57,496 INFO L137 encePairwiseOnDemand]: 501/504 looper letters, 99 selfloop transitions, 3 changer transitions 0/165 dead transitions. [2023-08-31 21:57:57,496 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 165 transitions, 739 flow [2023-08-31 21:57:57,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 21:57:57,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 21:57:57,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 879 transitions. [2023-08-31 21:57:57,500 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5813492063492064 [2023-08-31 21:57:57,500 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 879 transitions. [2023-08-31 21:57:57,501 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 879 transitions. [2023-08-31 21:57:57,501 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:57:57,501 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 879 transitions. [2023-08-31 21:57:57,503 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 293.0) internal successors, (879), 3 states have internal predecessors, (879), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:57:57,507 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 504.0) internal successors, (2016), 4 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:57:57,508 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 504.0) internal successors, (2016), 4 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:57:57,508 INFO L175 Difference]: Start difference. First operand has 122 places, 128 transitions, 407 flow. Second operand 3 states and 879 transitions. [2023-08-31 21:57:57,508 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 165 transitions, 739 flow [2023-08-31 21:57:57,521 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 165 transitions, 733 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-31 21:57:57,523 INFO L231 Difference]: Finished difference. Result has 124 places, 130 transitions, 427 flow [2023-08-31 21:57:57,524 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=504, PETRI_DIFFERENCE_MINUEND_FLOW=404, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=427, PETRI_PLACES=124, PETRI_TRANSITIONS=130} [2023-08-31 21:57:57,525 INFO L281 CegarLoopForPetriNet]: 119 programPoint places, 5 predicate places. [2023-08-31 21:57:57,527 INFO L495 AbstractCegarLoop]: Abstraction has has 124 places, 130 transitions, 427 flow [2023-08-31 21:57:57,528 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 270.6666666666667) internal successors, (812), 3 states have internal predecessors, (812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:57:57,528 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:57:57,528 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:57:57,529 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-31 21:57:57,529 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t1Err5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-08-31 21:57:57,529 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:57:57,529 INFO L85 PathProgramCache]: Analyzing trace with hash -1785076131, now seen corresponding path program 1 times [2023-08-31 21:57:57,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:57:57,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685661117] [2023-08-31 21:57:57,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:57:57,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:57:57,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:57:57,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:57:57,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:57:57,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685661117] [2023-08-31 21:57:57,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1685661117] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:57:57,565 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:57:57,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-31 21:57:57,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570021015] [2023-08-31 21:57:57,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:57:57,566 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 21:57:57,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:57:57,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 21:57:57,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 21:57:57,576 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 267 out of 504 [2023-08-31 21:57:57,578 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 130 transitions, 427 flow. Second operand has 3 states, 3 states have (on average 270.0) internal successors, (810), 3 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:57:57,578 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:57:57,578 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 267 of 504 [2023-08-31 21:57:57,578 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:58:03,363 INFO L130 PetriNetUnfolder]: 32203/73800 cut-off events. [2023-08-31 21:58:03,364 INFO L131 PetriNetUnfolder]: For 21665/22177 co-relation queries the response was YES. [2023-08-31 21:58:03,608 INFO L83 FinitePrefix]: Finished finitePrefix Result has 160244 conditions, 73800 events. 32203/73800 cut-off events. For 21665/22177 co-relation queries the response was YES. Maximal size of possible extension queue 1593. Compared 848008 event pairs, 20486 based on Foata normal form. 829/67589 useless extension candidates. Maximal degree in co-relation 160228. Up to 51560 conditions per place. [2023-08-31 21:58:03,806 INFO L137 encePairwiseOnDemand]: 501/504 looper letters, 96 selfloop transitions, 2 changer transitions 0/161 dead transitions. [2023-08-31 21:58:03,806 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 161 transitions, 730 flow [2023-08-31 21:58:03,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 21:58:03,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 21:58:03,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 876 transitions. [2023-08-31 21:58:03,808 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5793650793650794 [2023-08-31 21:58:03,808 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 876 transitions. [2023-08-31 21:58:03,809 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 876 transitions. [2023-08-31 21:58:03,809 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:58:03,809 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 876 transitions. [2023-08-31 21:58:03,811 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 292.0) internal successors, (876), 3 states have internal predecessors, (876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:58:03,813 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 504.0) internal successors, (2016), 4 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:58:03,814 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 504.0) internal successors, (2016), 4 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:58:03,814 INFO L175 Difference]: Start difference. First operand has 124 places, 130 transitions, 427 flow. Second operand 3 states and 876 transitions. [2023-08-31 21:58:03,814 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 161 transitions, 730 flow [2023-08-31 21:58:03,914 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 161 transitions, 724 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-31 21:58:03,916 INFO L231 Difference]: Finished difference. Result has 126 places, 131 transitions, 438 flow [2023-08-31 21:58:03,917 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=504, PETRI_DIFFERENCE_MINUEND_FLOW=424, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=128, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=438, PETRI_PLACES=126, PETRI_TRANSITIONS=131} [2023-08-31 21:58:03,918 INFO L281 CegarLoopForPetriNet]: 119 programPoint places, 7 predicate places. [2023-08-31 21:58:03,918 INFO L495 AbstractCegarLoop]: Abstraction has has 126 places, 131 transitions, 438 flow [2023-08-31 21:58:03,919 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 270.0) internal successors, (810), 3 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:58:03,919 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:58:03,919 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:58:03,919 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-31 21:58:03,919 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting t2Err7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-08-31 21:58:03,919 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:58:03,920 INFO L85 PathProgramCache]: Analyzing trace with hash -151986676, now seen corresponding path program 1 times [2023-08-31 21:58:03,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:58:03,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776803708] [2023-08-31 21:58:03,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:58:03,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:58:03,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:58:04,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:58:04,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:58:04,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776803708] [2023-08-31 21:58:04,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [776803708] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:58:04,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:58:04,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 21:58:04,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852954492] [2023-08-31 21:58:04,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:58:04,031 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 21:58:04,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:58:04,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 21:58:04,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 21:58:04,091 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 268 out of 504 [2023-08-31 21:58:04,092 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 131 transitions, 438 flow. Second operand has 3 states, 3 states have (on average 272.6666666666667) internal successors, (818), 3 states have internal predecessors, (818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:58:04,092 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:58:04,093 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 268 of 504 [2023-08-31 21:58:04,093 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:58:14,718 INFO L130 PetriNetUnfolder]: 57205/126415 cut-off events. [2023-08-31 21:58:14,718 INFO L131 PetriNetUnfolder]: For 43523/44437 co-relation queries the response was YES. [2023-08-31 21:58:15,206 INFO L83 FinitePrefix]: Finished finitePrefix Result has 284782 conditions, 126415 events. 57205/126415 cut-off events. For 43523/44437 co-relation queries the response was YES. Maximal size of possible extension queue 2543. Compared 1510760 event pairs, 27020 based on Foata normal form. 0/115658 useless extension candidates. Maximal degree in co-relation 284765. Up to 55013 conditions per place. [2023-08-31 21:58:15,564 INFO L137 encePairwiseOnDemand]: 499/504 looper letters, 125 selfloop transitions, 8 changer transitions 0/194 dead transitions. [2023-08-31 21:58:15,564 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 194 transitions, 929 flow [2023-08-31 21:58:15,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 21:58:15,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 21:58:15,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 902 transitions. [2023-08-31 21:58:15,567 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5965608465608465 [2023-08-31 21:58:15,567 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 902 transitions. [2023-08-31 21:58:15,567 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 902 transitions. [2023-08-31 21:58:15,568 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:58:15,568 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 902 transitions. [2023-08-31 21:58:15,570 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 300.6666666666667) internal successors, (902), 3 states have internal predecessors, (902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:58:15,572 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 504.0) internal successors, (2016), 4 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:58:15,573 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 504.0) internal successors, (2016), 4 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:58:15,573 INFO L175 Difference]: Start difference. First operand has 126 places, 131 transitions, 438 flow. Second operand 3 states and 902 transitions. [2023-08-31 21:58:15,573 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 194 transitions, 929 flow [2023-08-31 21:58:16,010 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 194 transitions, 925 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-31 21:58:16,012 INFO L231 Difference]: Finished difference. Result has 129 places, 138 transitions, 518 flow [2023-08-31 21:58:16,012 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=504, PETRI_DIFFERENCE_MINUEND_FLOW=436, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=518, PETRI_PLACES=129, PETRI_TRANSITIONS=138} [2023-08-31 21:58:16,012 INFO L281 CegarLoopForPetriNet]: 119 programPoint places, 10 predicate places. [2023-08-31 21:58:16,012 INFO L495 AbstractCegarLoop]: Abstraction has has 129 places, 138 transitions, 518 flow [2023-08-31 21:58:16,013 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 272.6666666666667) internal successors, (818), 3 states have internal predecessors, (818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:58:16,013 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:58:16,013 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:58:16,013 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-31 21:58:16,014 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting t2Err9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-08-31 21:58:16,014 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:58:16,014 INFO L85 PathProgramCache]: Analyzing trace with hash 647005288, now seen corresponding path program 1 times [2023-08-31 21:58:16,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:58:16,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65349580] [2023-08-31 21:58:16,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:58:16,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:58:16,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:58:16,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:58:16,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:58:16,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65349580] [2023-08-31 21:58:16,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65349580] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:58:16,074 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:58:16,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-31 21:58:16,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539600387] [2023-08-31 21:58:16,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:58:16,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-31 21:58:16,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:58:16,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-31 21:58:16,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-31 21:58:16,086 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 269 out of 504 [2023-08-31 21:58:16,088 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 138 transitions, 518 flow. Second operand has 4 states, 4 states have (on average 272.5) internal successors, (1090), 4 states have internal predecessors, (1090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:58:16,088 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:58:16,088 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 269 of 504 [2023-08-31 21:58:16,088 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:58:28,318 INFO L130 PetriNetUnfolder]: 62848/147257 cut-off events. [2023-08-31 21:58:28,318 INFO L131 PetriNetUnfolder]: For 72244/74516 co-relation queries the response was YES. [2023-08-31 21:58:28,916 INFO L83 FinitePrefix]: Finished finitePrefix Result has 331621 conditions, 147257 events. 62848/147257 cut-off events. For 72244/74516 co-relation queries the response was YES. Maximal size of possible extension queue 3227. Compared 1876607 event pairs, 28131 based on Foata normal form. 565/133704 useless extension candidates. Maximal degree in co-relation 331603. Up to 82015 conditions per place. [2023-08-31 21:58:29,562 INFO L137 encePairwiseOnDemand]: 498/504 looper letters, 159 selfloop transitions, 12 changer transitions 0/233 dead transitions. [2023-08-31 21:58:29,562 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 233 transitions, 1286 flow [2023-08-31 21:58:29,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-31 21:58:29,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-31 21:58:29,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1191 transitions. [2023-08-31 21:58:29,565 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5907738095238095 [2023-08-31 21:58:29,565 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1191 transitions. [2023-08-31 21:58:29,565 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1191 transitions. [2023-08-31 21:58:29,566 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:58:29,566 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1191 transitions. [2023-08-31 21:58:29,568 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 297.75) internal successors, (1191), 4 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) [2023-08-31 21:58:29,571 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 504.0) internal successors, (2520), 5 states have internal predecessors, (2520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:58:29,572 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 504.0) internal successors, (2520), 5 states have internal predecessors, (2520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:58:29,572 INFO L175 Difference]: Start difference. First operand has 129 places, 138 transitions, 518 flow. Second operand 4 states and 1191 transitions. [2023-08-31 21:58:29,572 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 233 transitions, 1286 flow [2023-08-31 21:58:29,916 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 233 transitions, 1246 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-31 21:58:29,917 INFO L231 Difference]: Finished difference. Result has 132 places, 149 transitions, 615 flow [2023-08-31 21:58:29,918 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=504, PETRI_DIFFERENCE_MINUEND_FLOW=502, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=129, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=615, PETRI_PLACES=132, PETRI_TRANSITIONS=149} [2023-08-31 21:58:29,918 INFO L281 CegarLoopForPetriNet]: 119 programPoint places, 13 predicate places. [2023-08-31 21:58:29,918 INFO L495 AbstractCegarLoop]: Abstraction has has 132 places, 149 transitions, 615 flow [2023-08-31 21:58:29,919 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 272.5) internal successors, (1090), 4 states have internal predecessors, (1090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:58:29,919 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:58:29,919 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:58:29,919 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-31 21:58:29,919 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting t1Err5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-08-31 21:58:29,920 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:58:29,920 INFO L85 PathProgramCache]: Analyzing trace with hash -1460437733, now seen corresponding path program 1 times [2023-08-31 21:58:29,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:58:29,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337205177] [2023-08-31 21:58:29,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:58:29,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:58:29,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:58:30,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:58:30,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:58:30,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337205177] [2023-08-31 21:58:30,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1337205177] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:58:30,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:58:30,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 21:58:30,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246308851] [2023-08-31 21:58:30,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:58:30,023 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 21:58:30,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:58:30,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 21:58:30,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 21:58:30,084 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 257 out of 504 [2023-08-31 21:58:30,084 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 149 transitions, 615 flow. Second operand has 3 states, 3 states have (on average 260.6666666666667) internal successors, (782), 3 states have internal predecessors, (782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:58:30,084 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:58:30,085 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 257 of 504 [2023-08-31 21:58:30,085 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:58:56,879 INFO L130 PetriNetUnfolder]: 165654/303017 cut-off events. [2023-08-31 21:58:56,879 INFO L131 PetriNetUnfolder]: For 250393/254012 co-relation queries the response was YES. [2023-08-31 21:58:57,991 INFO L83 FinitePrefix]: Finished finitePrefix Result has 799658 conditions, 303017 events. 165654/303017 cut-off events. For 250393/254012 co-relation queries the response was YES. Maximal size of possible extension queue 5445. Compared 3337374 event pairs, 94173 based on Foata normal form. 0/281316 useless extension candidates. Maximal degree in co-relation 799638. Up to 233577 conditions per place. [2023-08-31 21:58:59,160 INFO L137 encePairwiseOnDemand]: 495/504 looper letters, 127 selfloop transitions, 20 changer transitions 0/196 dead transitions. [2023-08-31 21:58:59,160 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 196 transitions, 1123 flow [2023-08-31 21:58:59,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 21:58:59,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 21:58:59,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 863 transitions. [2023-08-31 21:58:59,163 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5707671957671958 [2023-08-31 21:58:59,163 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 863 transitions. [2023-08-31 21:58:59,163 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 863 transitions. [2023-08-31 21:58:59,164 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:58:59,164 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 863 transitions. [2023-08-31 21:58:59,165 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 287.6666666666667) internal successors, (863), 3 states have internal predecessors, (863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:58:59,167 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 504.0) internal successors, (2016), 4 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:58:59,168 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 504.0) internal successors, (2016), 4 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:58:59,168 INFO L175 Difference]: Start difference. First operand has 132 places, 149 transitions, 615 flow. Second operand 3 states and 863 transitions. [2023-08-31 21:58:59,168 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 196 transitions, 1123 flow [2023-08-31 21:59:03,293 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 196 transitions, 1123 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 21:59:03,295 INFO L231 Difference]: Finished difference. Result has 136 places, 159 transitions, 761 flow [2023-08-31 21:59:03,295 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=504, PETRI_DIFFERENCE_MINUEND_FLOW=615, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=149, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=129, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=761, PETRI_PLACES=136, PETRI_TRANSITIONS=159} [2023-08-31 21:59:03,296 INFO L281 CegarLoopForPetriNet]: 119 programPoint places, 17 predicate places. [2023-08-31 21:59:03,296 INFO L495 AbstractCegarLoop]: Abstraction has has 136 places, 159 transitions, 761 flow [2023-08-31 21:59:03,296 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 260.6666666666667) internal successors, (782), 3 states have internal predecessors, (782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:59:03,296 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:59:03,296 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:59:03,296 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-31 21:59:03,296 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting t1Err11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-08-31 21:59:03,297 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:59:03,297 INFO L85 PathProgramCache]: Analyzing trace with hash 895874013, now seen corresponding path program 1 times [2023-08-31 21:59:03,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:59:03,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717401861] [2023-08-31 21:59:03,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:59:03,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:59:03,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:59:03,337 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:59:03,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:59:03,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [717401861] [2023-08-31 21:59:03,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [717401861] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:59:03,338 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:59:03,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-31 21:59:03,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616818141] [2023-08-31 21:59:03,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:59:03,339 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 21:59:03,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:59:03,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 21:59:03,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 21:59:03,345 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 270 out of 504 [2023-08-31 21:59:03,346 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 159 transitions, 761 flow. Second operand has 3 states, 3 states have (on average 274.0) internal successors, (822), 3 states have internal predecessors, (822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:59:03,346 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:59:03,346 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 270 of 504 [2023-08-31 21:59:03,346 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:59:26,341 INFO L130 PetriNetUnfolder]: 106173/234297 cut-off events. [2023-08-31 21:59:26,341 INFO L131 PetriNetUnfolder]: For 208880/248904 co-relation queries the response was YES. [2023-08-31 21:59:27,413 INFO L83 FinitePrefix]: Finished finitePrefix Result has 592690 conditions, 234297 events. 106173/234297 cut-off events. For 208880/248904 co-relation queries the response was YES. Maximal size of possible extension queue 5239. Compared 3013974 event pairs, 41400 based on Foata normal form. 1394/211532 useless extension candidates. Maximal degree in co-relation 592668. Up to 123260 conditions per place. [2023-08-31 21:59:28,392 INFO L137 encePairwiseOnDemand]: 500/504 looper letters, 134 selfloop transitions, 3 changer transitions 0/208 dead transitions. [2023-08-31 21:59:28,392 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 208 transitions, 1244 flow [2023-08-31 21:59:28,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 21:59:28,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 21:59:28,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 894 transitions. [2023-08-31 21:59:28,395 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5912698412698413 [2023-08-31 21:59:28,395 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 894 transitions. [2023-08-31 21:59:28,395 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 894 transitions. [2023-08-31 21:59:28,395 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:59:28,395 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 894 transitions. [2023-08-31 21:59:28,397 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 298.0) internal successors, (894), 3 states have internal predecessors, (894), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:59:28,399 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 504.0) internal successors, (2016), 4 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:59:28,399 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 504.0) internal successors, (2016), 4 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:59:28,399 INFO L175 Difference]: Start difference. First operand has 136 places, 159 transitions, 761 flow. Second operand 3 states and 894 transitions. [2023-08-31 21:59:28,400 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 208 transitions, 1244 flow [2023-08-31 21:59:29,637 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 208 transitions, 1204 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-31 21:59:29,639 INFO L231 Difference]: Finished difference. Result has 138 places, 161 transitions, 743 flow [2023-08-31 21:59:29,639 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=504, PETRI_DIFFERENCE_MINUEND_FLOW=721, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=159, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=156, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=743, PETRI_PLACES=138, PETRI_TRANSITIONS=161} [2023-08-31 21:59:29,639 INFO L281 CegarLoopForPetriNet]: 119 programPoint places, 19 predicate places. [2023-08-31 21:59:29,639 INFO L495 AbstractCegarLoop]: Abstraction has has 138 places, 161 transitions, 743 flow [2023-08-31 21:59:29,640 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 274.0) internal successors, (822), 3 states have internal predecessors, (822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:59:29,640 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:59:29,640 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:59:29,640 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-31 21:59:29,640 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting t1Err5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-08-31 21:59:29,640 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:59:29,640 INFO L85 PathProgramCache]: Analyzing trace with hash 1849895114, now seen corresponding path program 1 times [2023-08-31 21:59:29,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:59:29,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668016747] [2023-08-31 21:59:29,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:59:29,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:59:29,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:59:29,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:59:29,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:59:29,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668016747] [2023-08-31 21:59:29,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1668016747] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:59:29,893 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:59:29,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-31 21:59:29,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583457247] [2023-08-31 21:59:29,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:59:29,894 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-31 21:59:29,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:59:29,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-31 21:59:29,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-08-31 21:59:30,035 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 254 out of 504 [2023-08-31 21:59:30,036 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 161 transitions, 743 flow. Second operand has 5 states, 5 states have (on average 257.0) internal successors, (1285), 5 states have internal predecessors, (1285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:59:30,036 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:59:30,036 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 254 of 504 [2023-08-31 21:59:30,036 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 22:00:03,058 INFO L130 PetriNetUnfolder]: 182009/336833 cut-off events. [2023-08-31 22:00:03,059 INFO L131 PetriNetUnfolder]: For 433589/436808 co-relation queries the response was YES. [2023-08-31 22:00:04,514 INFO L83 FinitePrefix]: Finished finitePrefix Result has 979480 conditions, 336833 events. 182009/336833 cut-off events. For 433589/436808 co-relation queries the response was YES. Maximal size of possible extension queue 5357. Compared 3716103 event pairs, 100990 based on Foata normal form. 0/313422 useless extension candidates. Maximal degree in co-relation 979457. Up to 248744 conditions per place. [2023-08-31 22:00:05,845 INFO L137 encePairwiseOnDemand]: 498/504 looper letters, 140 selfloop transitions, 16 changer transitions 0/206 dead transitions. [2023-08-31 22:00:05,845 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 206 transitions, 1277 flow [2023-08-31 22:00:05,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-31 22:00:05,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-31 22:00:05,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1108 transitions. [2023-08-31 22:00:05,848 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5496031746031746 [2023-08-31 22:00:05,848 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1108 transitions. [2023-08-31 22:00:05,848 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1108 transitions. [2023-08-31 22:00:05,848 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 22:00:05,849 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1108 transitions. [2023-08-31 22:00:05,850 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 277.0) internal successors, (1108), 4 states have internal predecessors, (1108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 22:00:05,853 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 504.0) internal successors, (2520), 5 states have internal predecessors, (2520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 22:00:05,853 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 504.0) internal successors, (2520), 5 states have internal predecessors, (2520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 22:00:05,853 INFO L175 Difference]: Start difference. First operand has 138 places, 161 transitions, 743 flow. Second operand 4 states and 1108 transitions. [2023-08-31 22:00:05,854 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 206 transitions, 1277 flow [2023-08-31 22:00:12,072 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 206 transitions, 1271 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-31 22:00:12,074 INFO L231 Difference]: Finished difference. Result has 141 places, 164 transitions, 822 flow [2023-08-31 22:00:12,074 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=504, PETRI_DIFFERENCE_MINUEND_FLOW=737, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=161, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=145, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=822, PETRI_PLACES=141, PETRI_TRANSITIONS=164} [2023-08-31 22:00:12,074 INFO L281 CegarLoopForPetriNet]: 119 programPoint places, 22 predicate places. [2023-08-31 22:00:12,074 INFO L495 AbstractCegarLoop]: Abstraction has has 141 places, 164 transitions, 822 flow [2023-08-31 22:00:12,075 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 257.0) internal successors, (1285), 5 states have internal predecessors, (1285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 22:00:12,075 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 22:00:12,075 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 22:00:12,075 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-08-31 22:00:12,075 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-08-31 22:00:12,075 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 22:00:12,076 INFO L85 PathProgramCache]: Analyzing trace with hash -1484019175, now seen corresponding path program 1 times [2023-08-31 22:00:12,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 22:00:12,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816199038] [2023-08-31 22:00:12,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 22:00:12,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 22:00:12,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 22:00:12,139 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 22:00:12,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 22:00:12,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816199038] [2023-08-31 22:00:12,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816199038] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-31 22:00:12,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1219349952] [2023-08-31 22:00:12,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 22:00:12,140 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-31 22:00:12,140 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 22:00:12,145 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) [2023-08-31 22:00:12,164 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-08-31 22:00:12,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 22:00:12,279 INFO L263 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 3 conjunts are in the unsatisfiable core [2023-08-31 22:00:12,283 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-31 22:00:12,363 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 22:00:12,363 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-31 22:00:12,387 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 22:00:12,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1219349952] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-31 22:00:12,388 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-31 22:00:12,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2023-08-31 22:00:12,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208741824] [2023-08-31 22:00:12,388 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-31 22:00:12,388 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-31 22:00:12,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 22:00:12,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-31 22:00:12,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-08-31 22:00:12,416 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 271 out of 504 [2023-08-31 22:00:12,417 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 164 transitions, 822 flow. Second operand has 7 states, 7 states have (on average 274.0) internal successors, (1918), 7 states have internal predecessors, (1918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 22:00:12,417 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 22:00:12,417 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 271 of 504 [2023-08-31 22:00:12,418 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 22:01:23,665 INFO L130 PetriNetUnfolder]: 255492/591876 cut-off events. [2023-08-31 22:01:23,666 INFO L131 PetriNetUnfolder]: For 781347/900682 co-relation queries the response was YES. [2023-08-31 22:01:26,932 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1538596 conditions, 591876 events. 255492/591876 cut-off events. For 781347/900682 co-relation queries the response was YES. Maximal size of possible extension queue 10534. Compared 8516891 event pairs, 62266 based on Foata normal form. 15022/559064 useless extension candidates. Maximal degree in co-relation 1538571. Up to 107941 conditions per place. [2023-08-31 22:01:29,062 INFO L137 encePairwiseOnDemand]: 498/504 looper letters, 370 selfloop transitions, 29 changer transitions 0/474 dead transitions. [2023-08-31 22:01:29,062 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 474 transitions, 3290 flow [2023-08-31 22:01:29,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-31 22:01:29,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-31 22:01:29,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2131 transitions. [2023-08-31 22:01:29,065 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6040249433106576 [2023-08-31 22:01:29,066 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2131 transitions. [2023-08-31 22:01:29,066 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2131 transitions. [2023-08-31 22:01:29,067 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 22:01:29,067 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2131 transitions. [2023-08-31 22:01:29,070 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 304.42857142857144) internal successors, (2131), 7 states have internal predecessors, (2131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 22:01:29,074 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 504.0) internal successors, (4032), 8 states have internal predecessors, (4032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 22:01:29,074 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 504.0) internal successors, (4032), 8 states have internal predecessors, (4032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 22:01:29,075 INFO L175 Difference]: Start difference. First operand has 141 places, 164 transitions, 822 flow. Second operand 7 states and 2131 transitions. [2023-08-31 22:01:29,075 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 474 transitions, 3290 flow [2023-08-31 22:01:45,372 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 474 transitions, 3289 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-31 22:01:45,375 INFO L231 Difference]: Finished difference. Result has 150 places, 182 transitions, 1049 flow [2023-08-31 22:01:45,375 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=504, PETRI_DIFFERENCE_MINUEND_FLOW=821, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=164, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=152, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1049, PETRI_PLACES=150, PETRI_TRANSITIONS=182} [2023-08-31 22:01:45,376 INFO L281 CegarLoopForPetriNet]: 119 programPoint places, 31 predicate places. [2023-08-31 22:01:45,376 INFO L495 AbstractCegarLoop]: Abstraction has has 150 places, 182 transitions, 1049 flow [2023-08-31 22:01:45,376 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 274.0) internal successors, (1918), 7 states have internal predecessors, (1918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 22:01:45,377 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 22:01:45,377 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 22:01:45,391 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-08-31 22:01:45,591 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-08-31 22:01:45,591 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting t2Err9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-08-31 22:01:45,592 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 22:01:45,592 INFO L85 PathProgramCache]: Analyzing trace with hash -714576845, now seen corresponding path program 1 times [2023-08-31 22:01:45,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 22:01:45,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278826924] [2023-08-31 22:01:45,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 22:01:45,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 22:01:45,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 22:01:45,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 22:01:45,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 22:01:45,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278826924] [2023-08-31 22:01:45,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278826924] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 22:01:45,640 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 22:01:45,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 22:01:45,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838455845] [2023-08-31 22:01:45,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 22:01:45,640 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 22:01:45,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 22:01:45,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 22:01:45,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 22:01:45,656 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 268 out of 504 [2023-08-31 22:01:45,657 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 182 transitions, 1049 flow. Second operand has 3 states, 3 states have (on average 273.6666666666667) internal successors, (821), 3 states have internal predecessors, (821), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 22:01:45,657 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 22:01:45,657 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 268 of 504 [2023-08-31 22:01:45,657 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 22:03:01,994 INFO L130 PetriNetUnfolder]: 271586/594319 cut-off events. [2023-08-31 22:03:01,994 INFO L131 PetriNetUnfolder]: For 1029152/1177949 co-relation queries the response was YES. [2023-08-31 22:03:05,268 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1689637 conditions, 594319 events. 271586/594319 cut-off events. For 1029152/1177949 co-relation queries the response was YES. Maximal size of possible extension queue 11865. Compared 8359146 event pairs, 140292 based on Foata normal form. 3951/543698 useless extension candidates. Maximal degree in co-relation 1689609. Up to 414758 conditions per place. [2023-08-31 22:03:07,423 INFO L137 encePairwiseOnDemand]: 499/504 looper letters, 164 selfloop transitions, 6 changer transitions 0/243 dead transitions. [2023-08-31 22:03:07,424 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 243 transitions, 1855 flow [2023-08-31 22:03:07,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 22:03:07,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 22:03:07,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 885 transitions. [2023-08-31 22:03:07,425 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5853174603174603 [2023-08-31 22:03:07,425 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 885 transitions. [2023-08-31 22:03:07,425 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 885 transitions. [2023-08-31 22:03:07,426 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 22:03:07,426 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 885 transitions. [2023-08-31 22:03:07,427 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 295.0) internal successors, (885), 3 states have internal predecessors, (885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 22:03:07,429 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 504.0) internal successors, (2016), 4 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 22:03:07,429 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 504.0) internal successors, (2016), 4 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 22:03:07,429 INFO L175 Difference]: Start difference. First operand has 150 places, 182 transitions, 1049 flow. Second operand 3 states and 885 transitions. [2023-08-31 22:03:07,430 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 243 transitions, 1855 flow [2023-08-31 22:03:19,803 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 151 places, 243 transitions, 1761 flow, removed 44 selfloop flow, removed 1 redundant places. [2023-08-31 22:03:19,806 INFO L231 Difference]: Finished difference. Result has 153 places, 186 transitions, 1044 flow [2023-08-31 22:03:19,807 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=504, PETRI_DIFFERENCE_MINUEND_FLOW=996, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=182, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=176, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1044, PETRI_PLACES=153, PETRI_TRANSITIONS=186} [2023-08-31 22:03:19,807 INFO L281 CegarLoopForPetriNet]: 119 programPoint places, 34 predicate places. [2023-08-31 22:03:19,807 INFO L495 AbstractCegarLoop]: Abstraction has has 153 places, 186 transitions, 1044 flow [2023-08-31 22:03:19,807 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 273.6666666666667) internal successors, (821), 3 states have internal predecessors, (821), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 22:03:19,808 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 22:03:19,808 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] [2023-08-31 22:03:19,808 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-08-31 22:03:19,808 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-08-31 22:03:19,808 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 22:03:19,808 INFO L85 PathProgramCache]: Analyzing trace with hash -882771332, now seen corresponding path program 1 times [2023-08-31 22:03:19,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 22:03:19,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397783245] [2023-08-31 22:03:19,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 22:03:19,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 22:03:19,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 22:03:20,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 22:03:20,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 22:03:20,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397783245] [2023-08-31 22:03:20,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [397783245] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 22:03:20,155 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 22:03:20,155 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-31 22:03:20,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070974930] [2023-08-31 22:03:20,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 22:03:20,156 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-31 22:03:20,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 22:03:20,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-31 22:03:20,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2023-08-31 22:03:20,338 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 265 out of 504 [2023-08-31 22:03:20,340 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 186 transitions, 1044 flow. Second operand has 8 states, 8 states have (on average 267.25) internal successors, (2138), 8 states have internal predecessors, (2138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 22:03:20,340 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 22:03:20,340 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 265 of 504 [2023-08-31 22:03:20,340 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 22:05:04,483 INFO L130 PetriNetUnfolder]: 488647/837828 cut-off events. [2023-08-31 22:05:04,497 INFO L131 PetriNetUnfolder]: For 1270359/1303322 co-relation queries the response was YES. [2023-08-31 22:05:10,838 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2711773 conditions, 837828 events. 488647/837828 cut-off events. For 1270359/1303322 co-relation queries the response was YES. Maximal size of possible extension queue 12398. Compared 9446165 event pairs, 90887 based on Foata normal form. 25814/819165 useless extension candidates. Maximal degree in co-relation 2711743. Up to 256841 conditions per place. [2023-08-31 22:05:15,090 INFO L137 encePairwiseOnDemand]: 498/504 looper letters, 490 selfloop transitions, 15 changer transitions 0/564 dead transitions. [2023-08-31 22:05:15,091 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 158 places, 564 transitions, 4358 flow [2023-08-31 22:05:15,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-31 22:05:15,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-31 22:05:15,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2083 transitions. [2023-08-31 22:05:15,095 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5904195011337868 [2023-08-31 22:05:15,095 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2083 transitions. [2023-08-31 22:05:15,095 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2083 transitions. [2023-08-31 22:05:15,096 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 22:05:15,096 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2083 transitions. [2023-08-31 22:05:15,099 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 297.57142857142856) internal successors, (2083), 7 states have internal predecessors, (2083), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 22:05:15,102 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 504.0) internal successors, (4032), 8 states have internal predecessors, (4032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 22:05:15,129 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 504.0) internal successors, (4032), 8 states have internal predecessors, (4032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 22:05:15,129 INFO L175 Difference]: Start difference. First operand has 153 places, 186 transitions, 1044 flow. Second operand 7 states and 2083 transitions. [2023-08-31 22:05:15,129 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 158 places, 564 transitions, 4358 flow Killed by 15