./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/weaver/array-eq-symm.wvr.c --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/weaver/array-eq-symm.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1a172ae6dd3a5207c1a2580ce55cc24497fcf78586be62b7482a56f18aa6beb2 --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 21:25:40,736 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-31 21:25:40,739 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-31 21:25:40,782 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-31 21:25:40,784 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-31 21:25:40,787 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-31 21:25:40,790 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-31 21:25:40,792 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-31 21:25:40,795 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-31 21:25:40,799 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-31 21:25:40,800 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-31 21:25:40,804 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-31 21:25:40,805 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-31 21:25:40,807 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-31 21:25:40,808 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-31 21:25:40,814 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-31 21:25:40,815 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-31 21:25:40,816 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-31 21:25:40,818 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-31 21:25:40,823 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-31 21:25:40,824 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-31 21:25:40,826 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-31 21:25:40,826 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-31 21:25:40,827 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-31 21:25:40,834 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-31 21:25:40,835 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-31 21:25:40,835 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-31 21:25:40,837 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-31 21:25:40,837 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-31 21:25:40,838 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-31 21:25:40,838 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-31 21:25:40,844 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-31 21:25:40,846 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-31 21:25:40,846 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-31 21:25:40,847 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-31 21:25:40,848 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-31 21:25:40,848 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-31 21:25:40,848 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-31 21:25:40,849 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-31 21:25:40,849 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-31 21:25:40,850 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-31 21:25:40,852 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-31 21:25:40,886 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-31 21:25:40,886 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-31 21:25:40,887 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-31 21:25:40,887 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-31 21:25:40,888 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-31 21:25:40,888 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-31 21:25:40,889 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-31 21:25:40,889 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-31 21:25:40,889 INFO L138 SettingsManager]: * Use SBE=true [2023-08-31 21:25:40,889 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-31 21:25:40,890 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-31 21:25:40,891 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-31 21:25:40,891 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-31 21:25:40,891 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-31 21:25:40,891 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-31 21:25:40,891 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-31 21:25:40,891 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-31 21:25:40,892 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-31 21:25:40,892 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-31 21:25:40,892 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-31 21:25:40,892 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-31 21:25:40,892 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-31 21:25:40,893 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-31 21:25:40,893 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-31 21:25:40,893 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-31 21:25:40,893 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-31 21:25:40,893 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 21:25:40,894 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-31 21:25:40,894 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-31 21:25:40,894 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-31 21:25:40,894 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-31 21:25:40,894 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-31 21:25:40,895 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-31 21:25:40,895 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-31 21:25:40,895 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-31 21:25:40,895 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-31 21:25:40,895 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-31 21:25:40,896 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1a172ae6dd3a5207c1a2580ce55cc24497fcf78586be62b7482a56f18aa6beb2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-08-31 21:25:41,216 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-31 21:25:41,234 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-31 21:25:41,237 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-31 21:25:41,238 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-31 21:25:41,238 INFO L275 PluginConnector]: CDTParser initialized [2023-08-31 21:25:41,239 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/array-eq-symm.wvr.c [2023-08-31 21:25:42,416 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-31 21:25:42,688 INFO L351 CDTParser]: Found 1 translation units. [2023-08-31 21:25:42,688 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/array-eq-symm.wvr.c [2023-08-31 21:25:42,695 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a732d308f/1aff5eb2ba954eaf8b910242df9ea3ef/FLAG065d5c538 [2023-08-31 21:25:42,715 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a732d308f/1aff5eb2ba954eaf8b910242df9ea3ef [2023-08-31 21:25:42,717 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-31 21:25:42,719 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-31 21:25:42,726 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-31 21:25:42,726 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-31 21:25:42,729 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-31 21:25:42,729 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 09:25:42" (1/1) ... [2023-08-31 21:25:42,731 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a81c470 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:25:42, skipping insertion in model container [2023-08-31 21:25:42,731 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 09:25:42" (1/1) ... [2023-08-31 21:25:42,736 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-31 21:25:42,755 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-31 21:25:42,950 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/array-eq-symm.wvr.c[2251,2264] [2023-08-31 21:25:42,963 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 21:25:42,976 INFO L203 MainTranslator]: Completed pre-run [2023-08-31 21:25:43,000 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/array-eq-symm.wvr.c[2251,2264] [2023-08-31 21:25:43,004 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 21:25:43,019 INFO L208 MainTranslator]: Completed translation [2023-08-31 21:25:43,020 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:25:43 WrapperNode [2023-08-31 21:25:43,020 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-31 21:25:43,021 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-31 21:25:43,021 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-31 21:25:43,021 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-31 21:25:43,027 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:25:43" (1/1) ... [2023-08-31 21:25:43,047 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:25:43" (1/1) ... [2023-08-31 21:25:43,071 INFO L138 Inliner]: procedures = 23, calls = 29, calls flagged for inlining = 7, calls inlined = 9, statements flattened = 164 [2023-08-31 21:25:43,071 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-31 21:25:43,072 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-31 21:25:43,072 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-31 21:25:43,072 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-31 21:25:43,080 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:25:43" (1/1) ... [2023-08-31 21:25:43,080 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:25:43" (1/1) ... [2023-08-31 21:25:43,084 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:25:43" (1/1) ... [2023-08-31 21:25:43,085 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:25:43" (1/1) ... [2023-08-31 21:25:43,097 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:25:43" (1/1) ... [2023-08-31 21:25:43,101 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:25:43" (1/1) ... [2023-08-31 21:25:43,103 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:25:43" (1/1) ... [2023-08-31 21:25:43,104 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:25:43" (1/1) ... [2023-08-31 21:25:43,107 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-31 21:25:43,108 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-31 21:25:43,108 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-31 21:25:43,108 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-31 21:25:43,109 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:25:43" (1/1) ... [2023-08-31 21:25:43,125 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 21:25:43,133 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 21:25:43,144 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 21:25:43,170 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 21:25:43,201 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-31 21:25:43,201 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-31 21:25:43,201 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-31 21:25:43,202 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-31 21:25:43,202 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-31 21:25:43,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-31 21:25:43,202 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-31 21:25:43,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-31 21:25:43,202 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-31 21:25:43,202 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-31 21:25:43,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-31 21:25:43,203 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-31 21:25:43,203 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-31 21:25:43,204 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 21:25:43,312 INFO L236 CfgBuilder]: Building ICFG [2023-08-31 21:25:43,314 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-31 21:25:43,783 INFO L277 CfgBuilder]: Performing block encoding [2023-08-31 21:25:43,793 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-31 21:25:43,800 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-08-31 21:25:43,803 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 09:25:43 BoogieIcfgContainer [2023-08-31 21:25:43,805 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-31 21:25:43,817 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-31 21:25:43,818 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-31 21:25:43,821 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-31 21:25:43,821 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.08 09:25:42" (1/3) ... [2023-08-31 21:25:43,822 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20bd7342 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 09:25:43, skipping insertion in model container [2023-08-31 21:25:43,822 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:25:43" (2/3) ... [2023-08-31 21:25:43,823 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20bd7342 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 09:25:43, skipping insertion in model container [2023-08-31 21:25:43,823 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 09:25:43" (3/3) ... [2023-08-31 21:25:43,824 INFO L112 eAbstractionObserver]: Analyzing ICFG array-eq-symm.wvr.c [2023-08-31 21:25:43,832 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-31 21:25:43,841 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-31 21:25:43,841 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 36 error locations. [2023-08-31 21:25:43,841 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-31 21:25:43,920 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-31 21:25:43,956 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 311 places, 321 transitions, 658 flow [2023-08-31 21:25:44,055 INFO L130 PetriNetUnfolder]: 17/319 cut-off events. [2023-08-31 21:25:44,055 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-31 21:25:44,069 INFO L83 FinitePrefix]: Finished finitePrefix Result has 328 conditions, 319 events. 17/319 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 589 event pairs, 0 based on Foata normal form. 0/266 useless extension candidates. Maximal degree in co-relation 214. Up to 3 conditions per place. [2023-08-31 21:25:44,069 INFO L82 GeneralOperation]: Start removeDead. Operand has 311 places, 321 transitions, 658 flow [2023-08-31 21:25:44,076 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 295 places, 304 transitions, 620 flow [2023-08-31 21:25:44,079 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-31 21:25:44,086 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 295 places, 304 transitions, 620 flow [2023-08-31 21:25:44,089 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 295 places, 304 transitions, 620 flow [2023-08-31 21:25:44,090 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 295 places, 304 transitions, 620 flow [2023-08-31 21:25:44,140 INFO L130 PetriNetUnfolder]: 16/304 cut-off events. [2023-08-31 21:25:44,141 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-31 21:25:44,143 INFO L83 FinitePrefix]: Finished finitePrefix Result has 313 conditions, 304 events. 16/304 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 528 event pairs, 0 based on Foata normal form. 0/253 useless extension candidates. Maximal degree in co-relation 214. Up to 3 conditions per place. [2023-08-31 21:25:44,149 INFO L119 LiptonReduction]: Number of co-enabled transitions 13068 [2023-08-31 21:25:50,435 INFO L134 LiptonReduction]: Checked pairs total: 59450 [2023-08-31 21:25:50,436 INFO L136 LiptonReduction]: Total number of compositions: 284 [2023-08-31 21:25:50,454 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-31 21:25:50,462 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;@64e1c2e1, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-31 21:25:50,463 INFO L358 AbstractCegarLoop]: Starting to check reachability of 62 error locations. [2023-08-31 21:25:50,464 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-31 21:25:50,464 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 21:25:50,464 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:25:50,466 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-31 21:25:50,466 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2023-08-31 21:25:50,471 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:25:50,471 INFO L85 PathProgramCache]: Analyzing trace with hash 1147, now seen corresponding path program 1 times [2023-08-31 21:25:50,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:25:50,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522109310] [2023-08-31 21:25:50,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:25:50,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:25:50,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:25:50,552 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 21:25:50,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:25:50,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522109310] [2023-08-31 21:25:50,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [522109310] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:25:50,554 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:25:50,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-31 21:25:50,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118713104] [2023-08-31 21:25:50,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:25:50,563 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-31 21:25:50,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:25:50,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-31 21:25:50,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-31 21:25:50,592 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 307 out of 605 [2023-08-31 21:25:50,596 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 102 transitions, 216 flow. Second operand has 2 states, 2 states have (on average 307.5) internal successors, (615), 2 states have internal predecessors, (615), 0 states have call successors, (0), 0 states 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 21:25:50,596 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:25:50,596 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 307 of 605 [2023-08-31 21:25:50,597 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:25:50,835 INFO L130 PetriNetUnfolder]: 467/1300 cut-off events. [2023-08-31 21:25:50,835 INFO L131 PetriNetUnfolder]: For 45/69 co-relation queries the response was YES. [2023-08-31 21:25:50,839 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2071 conditions, 1300 events. 467/1300 cut-off events. For 45/69 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 8449 event pairs, 327 based on Foata normal form. 78/1170 useless extension candidates. Maximal degree in co-relation 1876. Up to 734 conditions per place. [2023-08-31 21:25:50,846 INFO L137 encePairwiseOnDemand]: 581/605 looper letters, 36 selfloop transitions, 0 changer transitions 1/78 dead transitions. [2023-08-31 21:25:50,846 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 78 transitions, 242 flow [2023-08-31 21:25:50,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-31 21:25:50,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-31 21:25:50,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 675 transitions. [2023-08-31 21:25:50,864 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5578512396694215 [2023-08-31 21:25:50,865 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 675 transitions. [2023-08-31 21:25:50,865 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 675 transitions. [2023-08-31 21:25:50,869 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:25:50,871 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 675 transitions. [2023-08-31 21:25:50,876 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 337.5) internal successors, (675), 2 states have internal predecessors, (675), 0 states have call successors, (0), 0 states 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 21:25:50,881 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 605.0) internal successors, (1815), 3 states have internal predecessors, (1815), 0 states have call successors, (0), 0 states 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 21:25:50,882 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 605.0) internal successors, (1815), 3 states have internal predecessors, (1815), 0 states have call successors, (0), 0 states 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 21:25:50,884 INFO L175 Difference]: Start difference. First operand has 99 places, 102 transitions, 216 flow. Second operand 2 states and 675 transitions. [2023-08-31 21:25:50,885 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 78 transitions, 242 flow [2023-08-31 21:25:50,887 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 78 transitions, 234 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-31 21:25:50,889 INFO L231 Difference]: Finished difference. Result has 74 places, 77 transitions, 157 flow [2023-08-31 21:25:50,891 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=605, PETRI_DIFFERENCE_MINUEND_FLOW=160, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=157, PETRI_PLACES=74, PETRI_TRANSITIONS=77} [2023-08-31 21:25:50,894 INFO L281 CegarLoopForPetriNet]: 99 programPoint places, -25 predicate places. [2023-08-31 21:25:50,894 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 77 transitions, 157 flow [2023-08-31 21:25:50,895 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 307.5) internal successors, (615), 2 states have internal predecessors, (615), 0 states have call successors, (0), 0 states 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 21:25:50,895 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:25:50,895 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-31 21:25:50,895 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-31 21:25:50,895 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2023-08-31 21:25:50,896 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:25:50,896 INFO L85 PathProgramCache]: Analyzing trace with hash 11846128, now seen corresponding path program 1 times [2023-08-31 21:25:50,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:25:50,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944446878] [2023-08-31 21:25:50,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:25:50,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:25:50,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:25:51,032 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 21:25:51,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:25:51,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944446878] [2023-08-31 21:25:51,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1944446878] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:25:51,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:25:51,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 21:25:51,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963314446] [2023-08-31 21:25:51,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:25:51,035 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 21:25:51,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:25:51,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 21:25:51,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 21:25:51,049 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 297 out of 605 [2023-08-31 21:25:51,050 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 77 transitions, 157 flow. Second operand has 3 states, 3 states have (on average 299.0) internal successors, (897), 3 states have internal predecessors, (897), 0 states have call successors, (0), 0 states 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 21:25:51,050 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:25:51,050 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 297 of 605 [2023-08-31 21:25:51,051 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:25:51,206 INFO L130 PetriNetUnfolder]: 467/1278 cut-off events. [2023-08-31 21:25:51,206 INFO L131 PetriNetUnfolder]: For 11/35 co-relation queries the response was YES. [2023-08-31 21:25:51,208 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2024 conditions, 1278 events. 467/1278 cut-off events. For 11/35 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 8187 event pairs, 327 based on Foata normal form. 0/1070 useless extension candidates. Maximal degree in co-relation 2021. Up to 732 conditions per place. [2023-08-31 21:25:51,214 INFO L137 encePairwiseOnDemand]: 602/605 looper letters, 35 selfloop transitions, 1 changer transitions 0/75 dead transitions. [2023-08-31 21:25:51,214 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 75 transitions, 225 flow [2023-08-31 21:25:51,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 21:25:51,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 21:25:51,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 929 transitions. [2023-08-31 21:25:51,217 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5118457300275482 [2023-08-31 21:25:51,217 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 929 transitions. [2023-08-31 21:25:51,217 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 929 transitions. [2023-08-31 21:25:51,218 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:25:51,218 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 929 transitions. [2023-08-31 21:25:51,220 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 309.6666666666667) internal successors, (929), 3 states have internal predecessors, (929), 0 states have call successors, (0), 0 states 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 21:25:51,224 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 605.0) internal successors, (2420), 4 states have internal predecessors, (2420), 0 states have call successors, (0), 0 states 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 21:25:51,225 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 605.0) internal successors, (2420), 4 states have internal predecessors, (2420), 0 states have call successors, (0), 0 states 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 21:25:51,225 INFO L175 Difference]: Start difference. First operand has 74 places, 77 transitions, 157 flow. Second operand 3 states and 929 transitions. [2023-08-31 21:25:51,225 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 75 transitions, 225 flow [2023-08-31 21:25:51,226 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 75 transitions, 225 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 21:25:51,227 INFO L231 Difference]: Finished difference. Result has 73 places, 75 transitions, 155 flow [2023-08-31 21:25:51,228 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=605, PETRI_DIFFERENCE_MINUEND_FLOW=153, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=155, PETRI_PLACES=73, PETRI_TRANSITIONS=75} [2023-08-31 21:25:51,228 INFO L281 CegarLoopForPetriNet]: 99 programPoint places, -26 predicate places. [2023-08-31 21:25:51,229 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 75 transitions, 155 flow [2023-08-31 21:25:51,229 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 299.0) internal successors, (897), 3 states have internal predecessors, (897), 0 states have call successors, (0), 0 states 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 21:25:51,229 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:25:51,230 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:25:51,230 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-31 21:25:51,230 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2023-08-31 21:25:51,230 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:25:51,231 INFO L85 PathProgramCache]: Analyzing trace with hash -1499039319, now seen corresponding path program 1 times [2023-08-31 21:25:51,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:25:51,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34309575] [2023-08-31 21:25:51,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:25:51,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:25:51,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:25:51,296 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 21:25:51,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:25:51,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34309575] [2023-08-31 21:25:51,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [34309575] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:25:51,297 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:25:51,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 21:25:51,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728909000] [2023-08-31 21:25:51,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:25:51,297 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 21:25:51,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:25:51,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 21:25:51,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 21:25:51,311 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 297 out of 605 [2023-08-31 21:25:51,312 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 75 transitions, 155 flow. Second operand has 3 states, 3 states have (on average 299.6666666666667) internal successors, (899), 3 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:25:51,313 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:25:51,313 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 297 of 605 [2023-08-31 21:25:51,313 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:25:51,454 INFO L130 PetriNetUnfolder]: 467/1268 cut-off events. [2023-08-31 21:25:51,454 INFO L131 PetriNetUnfolder]: For 11/35 co-relation queries the response was YES. [2023-08-31 21:25:51,456 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2016 conditions, 1268 events. 467/1268 cut-off events. For 11/35 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 8055 event pairs, 327 based on Foata normal form. 0/1060 useless extension candidates. Maximal degree in co-relation 2012. Up to 730 conditions per place. [2023-08-31 21:25:51,462 INFO L137 encePairwiseOnDemand]: 602/605 looper letters, 35 selfloop transitions, 1 changer transitions 0/73 dead transitions. [2023-08-31 21:25:51,462 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 73 transitions, 223 flow [2023-08-31 21:25:51,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 21:25:51,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 21:25:51,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 929 transitions. [2023-08-31 21:25:51,465 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5118457300275482 [2023-08-31 21:25:51,465 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 929 transitions. [2023-08-31 21:25:51,465 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 929 transitions. [2023-08-31 21:25:51,466 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:25:51,466 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 929 transitions. [2023-08-31 21:25:51,468 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 309.6666666666667) internal successors, (929), 3 states have internal predecessors, (929), 0 states have call successors, (0), 0 states 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 21:25:51,471 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 605.0) internal successors, (2420), 4 states have internal predecessors, (2420), 0 states have call successors, (0), 0 states 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 21:25:51,472 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 605.0) internal successors, (2420), 4 states have internal predecessors, (2420), 0 states have call successors, (0), 0 states 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 21:25:51,473 INFO L175 Difference]: Start difference. First operand has 73 places, 75 transitions, 155 flow. Second operand 3 states and 929 transitions. [2023-08-31 21:25:51,473 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 73 transitions, 223 flow [2023-08-31 21:25:51,474 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 73 transitions, 222 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-31 21:25:51,475 INFO L231 Difference]: Finished difference. Result has 72 places, 73 transitions, 152 flow [2023-08-31 21:25:51,475 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=605, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=152, PETRI_PLACES=72, PETRI_TRANSITIONS=73} [2023-08-31 21:25:51,476 INFO L281 CegarLoopForPetriNet]: 99 programPoint places, -27 predicate places. [2023-08-31 21:25:51,476 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 73 transitions, 152 flow [2023-08-31 21:25:51,477 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 299.6666666666667) internal successors, (899), 3 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:25:51,477 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:25:51,477 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:25:51,477 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-31 21:25:51,477 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2023-08-31 21:25:51,478 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:25:51,478 INFO L85 PathProgramCache]: Analyzing trace with hash -1500497950, now seen corresponding path program 1 times [2023-08-31 21:25:51,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:25:51,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257084503] [2023-08-31 21:25:51,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:25:51,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:25:51,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:25:51,547 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 21:25:51,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:25:51,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257084503] [2023-08-31 21:25:51,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [257084503] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:25:51,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:25:51,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-31 21:25:51,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210322719] [2023-08-31 21:25:51,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:25:51,550 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 21:25:51,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:25:51,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 21:25:51,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 21:25:51,561 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 299 out of 605 [2023-08-31 21:25:51,563 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 73 transitions, 152 flow. Second operand has 3 states, 3 states have (on average 301.3333333333333) internal successors, (904), 3 states have internal predecessors, (904), 0 states have call successors, (0), 0 states 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 21:25:51,563 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:25:51,563 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 299 of 605 [2023-08-31 21:25:51,564 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:25:51,741 INFO L130 PetriNetUnfolder]: 506/1409 cut-off events. [2023-08-31 21:25:51,742 INFO L131 PetriNetUnfolder]: For 11/11 co-relation queries the response was YES. [2023-08-31 21:25:51,744 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2222 conditions, 1409 events. 506/1409 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 9165 event pairs, 327 based on Foata normal form. 0/1193 useless extension candidates. Maximal degree in co-relation 2218. Up to 733 conditions per place. [2023-08-31 21:25:51,751 INFO L137 encePairwiseOnDemand]: 602/605 looper letters, 51 selfloop transitions, 2 changer transitions 0/90 dead transitions. [2023-08-31 21:25:51,751 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 90 transitions, 293 flow [2023-08-31 21:25:51,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 21:25:51,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 21:25:51,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 951 transitions. [2023-08-31 21:25:51,754 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5239669421487604 [2023-08-31 21:25:51,754 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 951 transitions. [2023-08-31 21:25:51,758 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 951 transitions. [2023-08-31 21:25:51,759 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:25:51,759 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 951 transitions. [2023-08-31 21:25:51,761 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 317.0) internal successors, (951), 3 states have internal predecessors, (951), 0 states have call successors, (0), 0 states 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 21:25:51,764 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 605.0) internal successors, (2420), 4 states have internal predecessors, (2420), 0 states have call successors, (0), 0 states 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 21:25:51,765 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 605.0) internal successors, (2420), 4 states have internal predecessors, (2420), 0 states have call successors, (0), 0 states 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 21:25:51,766 INFO L175 Difference]: Start difference. First operand has 72 places, 73 transitions, 152 flow. Second operand 3 states and 951 transitions. [2023-08-31 21:25:51,766 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 90 transitions, 293 flow [2023-08-31 21:25:51,768 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 90 transitions, 292 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-31 21:25:51,770 INFO L231 Difference]: Finished difference. Result has 74 places, 74 transitions, 163 flow [2023-08-31 21:25:51,770 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=605, PETRI_DIFFERENCE_MINUEND_FLOW=151, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=163, PETRI_PLACES=74, PETRI_TRANSITIONS=74} [2023-08-31 21:25:51,772 INFO L281 CegarLoopForPetriNet]: 99 programPoint places, -25 predicate places. [2023-08-31 21:25:51,773 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 74 transitions, 163 flow [2023-08-31 21:25:51,773 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 301.3333333333333) internal successors, (904), 3 states have internal predecessors, (904), 0 states have call successors, (0), 0 states 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 21:25:51,774 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:25:51,774 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:25:51,774 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-31 21:25:51,774 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2023-08-31 21:25:51,774 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:25:51,775 INFO L85 PathProgramCache]: Analyzing trace with hash -1762507168, now seen corresponding path program 1 times [2023-08-31 21:25:51,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:25:51,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258662985] [2023-08-31 21:25:51,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:25:51,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:25:51,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:25:51,854 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 21:25:51,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:25:51,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258662985] [2023-08-31 21:25:51,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [258662985] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:25:51,856 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:25:51,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-31 21:25:51,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823278100] [2023-08-31 21:25:51,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:25:51,857 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 21:25:51,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:25:51,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 21:25:51,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 21:25:51,868 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 299 out of 605 [2023-08-31 21:25:51,870 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 74 transitions, 163 flow. Second operand has 3 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 21:25:51,870 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:25:51,870 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 299 of 605 [2023-08-31 21:25:51,870 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:25:52,038 INFO L130 PetriNetUnfolder]: 545/1460 cut-off events. [2023-08-31 21:25:52,039 INFO L131 PetriNetUnfolder]: For 125/133 co-relation queries the response was YES. [2023-08-31 21:25:52,042 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2467 conditions, 1460 events. 545/1460 cut-off events. For 125/133 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 9250 event pairs, 360 based on Foata normal form. 0/1266 useless extension candidates. Maximal degree in co-relation 2462. Up to 796 conditions per place. [2023-08-31 21:25:52,048 INFO L137 encePairwiseOnDemand]: 602/605 looper letters, 52 selfloop transitions, 2 changer transitions 0/91 dead transitions. [2023-08-31 21:25:52,048 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 91 transitions, 316 flow [2023-08-31 21:25:52,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 21:25:52,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 21:25:52,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 950 transitions. [2023-08-31 21:25:52,051 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5234159779614325 [2023-08-31 21:25:52,051 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 950 transitions. [2023-08-31 21:25:52,051 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 950 transitions. [2023-08-31 21:25:52,052 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:25:52,052 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 950 transitions. [2023-08-31 21:25:52,054 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 316.6666666666667) internal successors, (950), 3 states have internal predecessors, (950), 0 states have call successors, (0), 0 states 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 21:25:52,057 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 605.0) internal successors, (2420), 4 states have internal predecessors, (2420), 0 states have call successors, (0), 0 states 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 21:25:52,058 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 605.0) internal successors, (2420), 4 states have internal predecessors, (2420), 0 states have call successors, (0), 0 states 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 21:25:52,059 INFO L175 Difference]: Start difference. First operand has 74 places, 74 transitions, 163 flow. Second operand 3 states and 950 transitions. [2023-08-31 21:25:52,059 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 91 transitions, 316 flow [2023-08-31 21:25:52,060 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 91 transitions, 312 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-31 21:25:52,061 INFO L231 Difference]: Finished difference. Result has 76 places, 75 transitions, 173 flow [2023-08-31 21:25:52,062 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=605, PETRI_DIFFERENCE_MINUEND_FLOW=161, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=173, PETRI_PLACES=76, PETRI_TRANSITIONS=75} [2023-08-31 21:25:52,062 INFO L281 CegarLoopForPetriNet]: 99 programPoint places, -23 predicate places. [2023-08-31 21:25:52,063 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 75 transitions, 173 flow [2023-08-31 21:25:52,063 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 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 21:25:52,063 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:25:52,064 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:25:52,064 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-31 21:25:52,064 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2023-08-31 21:25:52,064 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:25:52,064 INFO L85 PathProgramCache]: Analyzing trace with hash 1130409515, now seen corresponding path program 1 times [2023-08-31 21:25:52,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:25:52,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762724184] [2023-08-31 21:25:52,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:25:52,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:25:52,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:25:52,104 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 21:25:52,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:25:52,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762724184] [2023-08-31 21:25:52,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1762724184] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:25:52,105 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:25:52,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 21:25:52,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529366360] [2023-08-31 21:25:52,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:25:52,106 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 21:25:52,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:25:52,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 21:25:52,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 21:25:52,121 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 300 out of 605 [2023-08-31 21:25:52,122 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 75 transitions, 173 flow. Second operand has 3 states, 3 states have (on average 303.3333333333333) internal successors, (910), 3 states have internal predecessors, (910), 0 states have call successors, (0), 0 states 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 21:25:52,122 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:25:52,122 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 300 of 605 [2023-08-31 21:25:52,122 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:25:52,386 INFO L130 PetriNetUnfolder]: 866/2116 cut-off events. [2023-08-31 21:25:52,386 INFO L131 PetriNetUnfolder]: For 259/267 co-relation queries the response was YES. [2023-08-31 21:25:52,390 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3920 conditions, 2116 events. 866/2116 cut-off events. For 259/267 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 13202 event pairs, 225 based on Foata normal form. 0/1880 useless extension candidates. Maximal degree in co-relation 3914. Up to 953 conditions per place. [2023-08-31 21:25:52,399 INFO L137 encePairwiseOnDemand]: 601/605 looper letters, 61 selfloop transitions, 2 changer transitions 0/97 dead transitions. [2023-08-31 21:25:52,399 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 97 transitions, 363 flow [2023-08-31 21:25:52,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 21:25:52,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 21:25:52,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 961 transitions. [2023-08-31 21:25:52,402 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5294765840220386 [2023-08-31 21:25:52,402 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 961 transitions. [2023-08-31 21:25:52,402 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 961 transitions. [2023-08-31 21:25:52,403 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:25:52,403 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 961 transitions. [2023-08-31 21:25:52,405 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 320.3333333333333) internal successors, (961), 3 states have internal predecessors, (961), 0 states have call successors, (0), 0 states 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 21:25:52,409 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 605.0) internal successors, (2420), 4 states have internal predecessors, (2420), 0 states have call successors, (0), 0 states 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 21:25:52,410 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 605.0) internal successors, (2420), 4 states have internal predecessors, (2420), 0 states have call successors, (0), 0 states 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 21:25:52,410 INFO L175 Difference]: Start difference. First operand has 76 places, 75 transitions, 173 flow. Second operand 3 states and 961 transitions. [2023-08-31 21:25:52,410 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 97 transitions, 363 flow [2023-08-31 21:25:52,412 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 97 transitions, 359 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-31 21:25:52,413 INFO L231 Difference]: Finished difference. Result has 76 places, 75 transitions, 183 flow [2023-08-31 21:25:52,413 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=605, PETRI_DIFFERENCE_MINUEND_FLOW=167, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=183, PETRI_PLACES=76, PETRI_TRANSITIONS=75} [2023-08-31 21:25:52,414 INFO L281 CegarLoopForPetriNet]: 99 programPoint places, -23 predicate places. [2023-08-31 21:25:52,414 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 75 transitions, 183 flow [2023-08-31 21:25:52,415 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 303.3333333333333) internal successors, (910), 3 states have internal predecessors, (910), 0 states have call successors, (0), 0 states 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 21:25:52,415 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:25:52,415 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:25:52,415 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-31 21:25:52,415 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2023-08-31 21:25:52,416 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:25:52,416 INFO L85 PathProgramCache]: Analyzing trace with hash 1206621140, now seen corresponding path program 1 times [2023-08-31 21:25:52,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:25:52,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104493970] [2023-08-31 21:25:52,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:25:52,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:25:52,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:25:52,743 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 21:25:52,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:25:52,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104493970] [2023-08-31 21:25:52,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [104493970] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:25:52,744 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:25:52,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 21:25:52,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034577091] [2023-08-31 21:25:52,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:25:52,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 21:25:52,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:25:52,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 21:25:52,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 21:25:53,025 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 290 out of 605 [2023-08-31 21:25:53,027 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 75 transitions, 183 flow. Second operand has 6 states, 6 states have (on average 291.8333333333333) internal successors, (1751), 6 states have internal predecessors, (1751), 0 states have call successors, (0), 0 states 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 21:25:53,027 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:25:53,027 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 290 of 605 [2023-08-31 21:25:53,027 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:25:53,580 INFO L130 PetriNetUnfolder]: 2782/4709 cut-off events. [2023-08-31 21:25:53,580 INFO L131 PetriNetUnfolder]: For 1128/1128 co-relation queries the response was YES. [2023-08-31 21:25:53,587 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10114 conditions, 4709 events. 2782/4709 cut-off events. For 1128/1128 co-relation queries the response was YES. Maximal size of possible extension queue 142. Compared 26407 event pairs, 241 based on Foata normal form. 0/4357 useless extension candidates. Maximal degree in co-relation 10108. Up to 1496 conditions per place. [2023-08-31 21:25:53,607 INFO L137 encePairwiseOnDemand]: 600/605 looper letters, 151 selfloop transitions, 4 changer transitions 0/186 dead transitions. [2023-08-31 21:25:53,607 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 186 transitions, 807 flow [2023-08-31 21:25:53,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 21:25:53,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 21:25:53,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1881 transitions. [2023-08-31 21:25:53,612 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5181818181818182 [2023-08-31 21:25:53,612 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1881 transitions. [2023-08-31 21:25:53,612 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1881 transitions. [2023-08-31 21:25:53,613 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:25:53,613 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1881 transitions. [2023-08-31 21:25:53,617 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 313.5) internal successors, (1881), 6 states have internal predecessors, (1881), 0 states have call successors, (0), 0 states 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 21:25:53,622 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 605.0) internal successors, (4235), 7 states have internal predecessors, (4235), 0 states have call successors, (0), 0 states 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 21:25:53,623 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 605.0) internal successors, (4235), 7 states have internal predecessors, (4235), 0 states have call successors, (0), 0 states 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 21:25:53,623 INFO L175 Difference]: Start difference. First operand has 76 places, 75 transitions, 183 flow. Second operand 6 states and 1881 transitions. [2023-08-31 21:25:53,624 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 186 transitions, 807 flow [2023-08-31 21:25:53,626 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 186 transitions, 807 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 21:25:53,628 INFO L231 Difference]: Finished difference. Result has 80 places, 74 transitions, 189 flow [2023-08-31 21:25:53,628 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=605, PETRI_DIFFERENCE_MINUEND_FLOW=181, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=189, PETRI_PLACES=80, PETRI_TRANSITIONS=74} [2023-08-31 21:25:53,629 INFO L281 CegarLoopForPetriNet]: 99 programPoint places, -19 predicate places. [2023-08-31 21:25:53,629 INFO L495 AbstractCegarLoop]: Abstraction has has 80 places, 74 transitions, 189 flow [2023-08-31 21:25:53,630 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 291.8333333333333) internal successors, (1751), 6 states have internal predecessors, (1751), 0 states have call successors, (0), 0 states 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 21:25:53,630 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:25:53,630 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:25:53,630 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-31 21:25:53,630 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2023-08-31 21:25:53,631 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:25:53,631 INFO L85 PathProgramCache]: Analyzing trace with hash -1551584079, now seen corresponding path program 1 times [2023-08-31 21:25:53,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:25:53,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818100757] [2023-08-31 21:25:53,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:25:53,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:25:53,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:25:53,657 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 21:25:53,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:25:53,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818100757] [2023-08-31 21:25:53,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [818100757] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:25:53,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:25:53,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 21:25:53,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605454038] [2023-08-31 21:25:53,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:25:53,659 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 21:25:53,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:25:53,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 21:25:53,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 21:25:53,667 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 300 out of 605 [2023-08-31 21:25:53,669 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 74 transitions, 189 flow. Second operand has 3 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 21:25:53,669 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:25:53,669 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 300 of 605 [2023-08-31 21:25:53,669 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:25:53,908 INFO L130 PetriNetUnfolder]: 921/2120 cut-off events. [2023-08-31 21:25:53,908 INFO L131 PetriNetUnfolder]: For 544/552 co-relation queries the response was YES. [2023-08-31 21:25:53,913 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4357 conditions, 2120 events. 921/2120 cut-off events. For 544/552 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 12569 event pairs, 218 based on Foata normal form. 1/1938 useless extension candidates. Maximal degree in co-relation 4350. Up to 1069 conditions per place. [2023-08-31 21:25:53,929 INFO L137 encePairwiseOnDemand]: 601/605 looper letters, 61 selfloop transitions, 2 changer transitions 0/95 dead transitions. [2023-08-31 21:25:53,929 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 95 transitions, 380 flow [2023-08-31 21:25:53,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 21:25:53,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 21:25:53,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 960 transitions. [2023-08-31 21:25:53,932 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5289256198347108 [2023-08-31 21:25:53,932 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 960 transitions. [2023-08-31 21:25:53,932 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 960 transitions. [2023-08-31 21:25:53,933 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:25:53,933 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 960 transitions. [2023-08-31 21:25:53,935 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 320.0) internal successors, (960), 3 states have internal predecessors, (960), 0 states have call successors, (0), 0 states 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 21:25:53,938 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 605.0) internal successors, (2420), 4 states have internal predecessors, (2420), 0 states have call successors, (0), 0 states 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 21:25:53,938 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 605.0) internal successors, (2420), 4 states have internal predecessors, (2420), 0 states have call successors, (0), 0 states 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 21:25:53,939 INFO L175 Difference]: Start difference. First operand has 80 places, 74 transitions, 189 flow. Second operand 3 states and 960 transitions. [2023-08-31 21:25:53,939 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 95 transitions, 380 flow [2023-08-31 21:25:53,942 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 95 transitions, 371 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-31 21:25:53,944 INFO L231 Difference]: Finished difference. Result has 77 places, 74 transitions, 194 flow [2023-08-31 21:25:53,944 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=605, PETRI_DIFFERENCE_MINUEND_FLOW=178, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=194, PETRI_PLACES=77, PETRI_TRANSITIONS=74} [2023-08-31 21:25:53,947 INFO L281 CegarLoopForPetriNet]: 99 programPoint places, -22 predicate places. [2023-08-31 21:25:53,947 INFO L495 AbstractCegarLoop]: Abstraction has has 77 places, 74 transitions, 194 flow [2023-08-31 21:25:53,947 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 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 21:25:53,947 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:25:53,948 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:25:53,948 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-31 21:25:53,948 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2023-08-31 21:25:53,948 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:25:53,948 INFO L85 PathProgramCache]: Analyzing trace with hash 1114334934, now seen corresponding path program 1 times [2023-08-31 21:25:53,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:25:53,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261998807] [2023-08-31 21:25:53,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:25:53,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:25:53,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:25:54,029 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 21:25:54,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:25:54,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261998807] [2023-08-31 21:25:54,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [261998807] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:25:54,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:25:54,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-31 21:25:54,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623617726] [2023-08-31 21:25:54,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:25:54,032 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-31 21:25:54,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:25:54,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-31 21:25:54,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-31 21:25:54,172 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 296 out of 605 [2023-08-31 21:25:54,173 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 74 transitions, 194 flow. Second operand has 4 states, 4 states have (on average 298.5) internal successors, (1194), 4 states have internal predecessors, (1194), 0 states have call successors, (0), 0 states 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 21:25:54,174 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:25:54,174 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 296 of 605 [2023-08-31 21:25:54,174 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:25:54,569 INFO L130 PetriNetUnfolder]: 1486/3592 cut-off events. [2023-08-31 21:25:54,569 INFO L131 PetriNetUnfolder]: For 666/688 co-relation queries the response was YES. [2023-08-31 21:25:54,576 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7145 conditions, 3592 events. 1486/3592 cut-off events. For 666/688 co-relation queries the response was YES. Maximal size of possible extension queue 103. Compared 25379 event pairs, 1147 based on Foata normal form. 92/3450 useless extension candidates. Maximal degree in co-relation 7138. Up to 1389 conditions per place. [2023-08-31 21:25:54,585 INFO L137 encePairwiseOnDemand]: 600/605 looper letters, 90 selfloop transitions, 4 changer transitions 0/128 dead transitions. [2023-08-31 21:25:54,585 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 128 transitions, 535 flow [2023-08-31 21:25:54,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-31 21:25:54,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-31 21:25:54,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1568 transitions. [2023-08-31 21:25:54,590 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5183471074380165 [2023-08-31 21:25:54,590 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1568 transitions. [2023-08-31 21:25:54,590 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1568 transitions. [2023-08-31 21:25:54,591 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:25:54,591 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1568 transitions. [2023-08-31 21:25:54,594 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 313.6) internal successors, (1568), 5 states have internal predecessors, (1568), 0 states have call successors, (0), 0 states 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 21:25:54,598 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 605.0) internal successors, (3630), 6 states have internal predecessors, (3630), 0 states have call successors, (0), 0 states 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 21:25:54,599 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 605.0) internal successors, (3630), 6 states have internal predecessors, (3630), 0 states have call successors, (0), 0 states 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 21:25:54,600 INFO L175 Difference]: Start difference. First operand has 77 places, 74 transitions, 194 flow. Second operand 5 states and 1568 transitions. [2023-08-31 21:25:54,600 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 128 transitions, 535 flow [2023-08-31 21:25:54,604 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 128 transitions, 535 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 21:25:54,609 INFO L231 Difference]: Finished difference. Result has 84 places, 77 transitions, 225 flow [2023-08-31 21:25:54,609 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=605, PETRI_DIFFERENCE_MINUEND_FLOW=194, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=225, PETRI_PLACES=84, PETRI_TRANSITIONS=77} [2023-08-31 21:25:54,610 INFO L281 CegarLoopForPetriNet]: 99 programPoint places, -15 predicate places. [2023-08-31 21:25:54,610 INFO L495 AbstractCegarLoop]: Abstraction has has 84 places, 77 transitions, 225 flow [2023-08-31 21:25:54,611 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 298.5) internal successors, (1194), 4 states have internal predecessors, (1194), 0 states have call successors, (0), 0 states 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 21:25:54,611 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:25:54,611 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 21:25:54,611 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-31 21:25:54,612 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2023-08-31 21:25:54,613 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:25:54,613 INFO L85 PathProgramCache]: Analyzing trace with hash 49022518, now seen corresponding path program 1 times [2023-08-31 21:25:54,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:25:54,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743434120] [2023-08-31 21:25:54,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:25:54,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:25:54,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:25:54,747 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-31 21:25:54,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:25:54,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743434120] [2023-08-31 21:25:54,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743434120] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:25:54,748 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:25:54,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 21:25:54,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166955489] [2023-08-31 21:25:54,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:25:54,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 21:25:54,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:25:54,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 21:25:54,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-08-31 21:25:54,931 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 287 out of 605 [2023-08-31 21:25:54,933 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 77 transitions, 225 flow. Second operand has 6 states, 6 states have (on average 288.8333333333333) internal successors, (1733), 6 states have internal predecessors, (1733), 0 states have call successors, (0), 0 states 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 21:25:54,933 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:25:54,933 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 287 of 605 [2023-08-31 21:25:54,934 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:25:55,668 INFO L130 PetriNetUnfolder]: 2571/5897 cut-off events. [2023-08-31 21:25:55,668 INFO L131 PetriNetUnfolder]: For 1273/1291 co-relation queries the response was YES. [2023-08-31 21:25:55,686 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12065 conditions, 5897 events. 2571/5897 cut-off events. For 1273/1291 co-relation queries the response was YES. Maximal size of possible extension queue 133. Compared 42693 event pairs, 1270 based on Foata normal form. 66/5595 useless extension candidates. Maximal degree in co-relation 12054. Up to 1616 conditions per place. [2023-08-31 21:25:55,706 INFO L137 encePairwiseOnDemand]: 596/605 looper letters, 128 selfloop transitions, 13 changer transitions 0/175 dead transitions. [2023-08-31 21:25:55,706 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 175 transitions, 791 flow [2023-08-31 21:25:55,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-31 21:25:55,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-31 21:25:55,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2136 transitions. [2023-08-31 21:25:55,712 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5043683589138135 [2023-08-31 21:25:55,712 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2136 transitions. [2023-08-31 21:25:55,712 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2136 transitions. [2023-08-31 21:25:55,713 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:25:55,714 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2136 transitions. [2023-08-31 21:25:55,718 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 305.14285714285717) internal successors, (2136), 7 states have internal predecessors, (2136), 0 states have call successors, (0), 0 states 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 21:25:55,724 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 605.0) internal successors, (4840), 8 states have internal predecessors, (4840), 0 states have call successors, (0), 0 states 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 21:25:55,725 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 605.0) internal successors, (4840), 8 states have internal predecessors, (4840), 0 states have call successors, (0), 0 states 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 21:25:55,725 INFO L175 Difference]: Start difference. First operand has 84 places, 77 transitions, 225 flow. Second operand 7 states and 2136 transitions. [2023-08-31 21:25:55,726 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 175 transitions, 791 flow [2023-08-31 21:25:55,731 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 175 transitions, 787 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-08-31 21:25:55,733 INFO L231 Difference]: Finished difference. Result has 93 places, 86 transitions, 317 flow [2023-08-31 21:25:55,733 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=605, PETRI_DIFFERENCE_MINUEND_FLOW=221, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=317, PETRI_PLACES=93, PETRI_TRANSITIONS=86} [2023-08-31 21:25:55,734 INFO L281 CegarLoopForPetriNet]: 99 programPoint places, -6 predicate places. [2023-08-31 21:25:55,734 INFO L495 AbstractCegarLoop]: Abstraction has has 93 places, 86 transitions, 317 flow [2023-08-31 21:25:55,735 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 288.8333333333333) internal successors, (1733), 6 states have internal predecessors, (1733), 0 states have call successors, (0), 0 states 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 21:25:55,735 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:25:55,735 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 21:25:55,735 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-31 21:25:55,736 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2023-08-31 21:25:55,736 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:25:55,736 INFO L85 PathProgramCache]: Analyzing trace with hash -664113146, now seen corresponding path program 1 times [2023-08-31 21:25:55,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:25:55,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779719650] [2023-08-31 21:25:55,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:25:55,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:25:55,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:25:55,868 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 21:25:55,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:25:55,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779719650] [2023-08-31 21:25:55,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [779719650] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:25:55,869 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:25:55,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-31 21:25:55,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773341830] [2023-08-31 21:25:55,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:25:55,869 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-31 21:25:55,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:25:55,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-31 21:25:55,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-31 21:25:56,046 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 287 out of 605 [2023-08-31 21:25:56,047 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 86 transitions, 317 flow. Second operand has 5 states, 5 states have (on average 289.6) internal successors, (1448), 5 states have internal predecessors, (1448), 0 states have call successors, (0), 0 states 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 21:25:56,047 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:25:56,047 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 287 of 605 [2023-08-31 21:25:56,047 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:25:56,609 INFO L130 PetriNetUnfolder]: 2161/4923 cut-off events. [2023-08-31 21:25:56,609 INFO L131 PetriNetUnfolder]: For 2827/2883 co-relation queries the response was YES. [2023-08-31 21:25:56,626 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11066 conditions, 4923 events. 2161/4923 cut-off events. For 2827/2883 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 33595 event pairs, 1451 based on Foata normal form. 28/4707 useless extension candidates. Maximal degree in co-relation 11051. Up to 2878 conditions per place. [2023-08-31 21:25:56,644 INFO L137 encePairwiseOnDemand]: 597/605 looper letters, 109 selfloop transitions, 14 changer transitions 0/157 dead transitions. [2023-08-31 21:25:56,644 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 157 transitions, 848 flow [2023-08-31 21:25:56,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-31 21:25:56,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-31 21:25:56,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 2398 transitions. [2023-08-31 21:25:56,650 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4954545454545455 [2023-08-31 21:25:56,651 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 2398 transitions. [2023-08-31 21:25:56,651 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 2398 transitions. [2023-08-31 21:25:56,652 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:25:56,652 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 2398 transitions. [2023-08-31 21:25:56,656 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 299.75) internal successors, (2398), 8 states have internal predecessors, (2398), 0 states have call successors, (0), 0 states 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 21:25:56,661 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 605.0) internal successors, (5445), 9 states have internal predecessors, (5445), 0 states have call successors, (0), 0 states 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 21:25:56,663 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 605.0) internal successors, (5445), 9 states have internal predecessors, (5445), 0 states have call successors, (0), 0 states 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 21:25:56,664 INFO L175 Difference]: Start difference. First operand has 93 places, 86 transitions, 317 flow. Second operand 8 states and 2398 transitions. [2023-08-31 21:25:56,664 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 157 transitions, 848 flow [2023-08-31 21:25:56,669 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 157 transitions, 844 flow, removed 2 selfloop flow, removed 0 redundant places. [2023-08-31 21:25:56,671 INFO L231 Difference]: Finished difference. Result has 102 places, 94 transitions, 385 flow [2023-08-31 21:25:56,671 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=605, PETRI_DIFFERENCE_MINUEND_FLOW=313, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=385, PETRI_PLACES=102, PETRI_TRANSITIONS=94} [2023-08-31 21:25:56,672 INFO L281 CegarLoopForPetriNet]: 99 programPoint places, 3 predicate places. [2023-08-31 21:25:56,672 INFO L495 AbstractCegarLoop]: Abstraction has has 102 places, 94 transitions, 385 flow [2023-08-31 21:25:56,673 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 289.6) internal successors, (1448), 5 states have internal predecessors, (1448), 0 states have call successors, (0), 0 states 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 21:25:56,673 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:25:56,673 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 21:25:56,673 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-31 21:25:56,673 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2023-08-31 21:25:56,674 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:25:56,674 INFO L85 PathProgramCache]: Analyzing trace with hash 670940326, now seen corresponding path program 1 times [2023-08-31 21:25:56,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:25:56,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086492262] [2023-08-31 21:25:56,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:25:56,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:25:56,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:25:56,748 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-31 21:25:56,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:25:56,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086492262] [2023-08-31 21:25:56,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2086492262] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:25:56,749 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:25:56,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-31 21:25:56,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635490949] [2023-08-31 21:25:56,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:25:56,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-31 21:25:56,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:25:56,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-31 21:25:56,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-31 21:25:56,913 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 295 out of 605 [2023-08-31 21:25:56,914 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 94 transitions, 385 flow. Second operand has 5 states, 5 states have (on average 297.8) internal successors, (1489), 5 states have internal predecessors, (1489), 0 states have call successors, (0), 0 states 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 21:25:56,914 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:25:56,914 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 295 of 605 [2023-08-31 21:25:56,914 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:25:57,392 INFO L130 PetriNetUnfolder]: 1680/3953 cut-off events. [2023-08-31 21:25:57,393 INFO L131 PetriNetUnfolder]: For 2509/2561 co-relation queries the response was YES. [2023-08-31 21:25:57,404 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9217 conditions, 3953 events. 1680/3953 cut-off events. For 2509/2561 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 26250 event pairs, 1115 based on Foata normal form. 34/3778 useless extension candidates. Maximal degree in co-relation 9199. Up to 2106 conditions per place. [2023-08-31 21:25:57,416 INFO L137 encePairwiseOnDemand]: 599/605 looper letters, 82 selfloop transitions, 8 changer transitions 0/124 dead transitions. [2023-08-31 21:25:57,416 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 124 transitions, 679 flow [2023-08-31 21:25:57,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 21:25:57,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 21:25:57,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1840 transitions. [2023-08-31 21:25:57,421 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5068870523415978 [2023-08-31 21:25:57,422 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1840 transitions. [2023-08-31 21:25:57,422 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1840 transitions. [2023-08-31 21:25:57,423 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:25:57,423 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1840 transitions. [2023-08-31 21:25:57,426 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 306.6666666666667) internal successors, (1840), 6 states have internal predecessors, (1840), 0 states have call successors, (0), 0 states 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 21:25:57,432 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 605.0) internal successors, (4235), 7 states have internal predecessors, (4235), 0 states have call successors, (0), 0 states 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 21:25:57,433 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 605.0) internal successors, (4235), 7 states have internal predecessors, (4235), 0 states have call successors, (0), 0 states 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 21:25:57,433 INFO L175 Difference]: Start difference. First operand has 102 places, 94 transitions, 385 flow. Second operand 6 states and 1840 transitions. [2023-08-31 21:25:57,433 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 124 transitions, 679 flow [2023-08-31 21:25:57,440 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 124 transitions, 670 flow, removed 1 selfloop flow, removed 3 redundant places. [2023-08-31 21:25:57,442 INFO L231 Difference]: Finished difference. Result has 106 places, 93 transitions, 398 flow [2023-08-31 21:25:57,442 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=605, PETRI_DIFFERENCE_MINUEND_FLOW=364, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=398, PETRI_PLACES=106, PETRI_TRANSITIONS=93} [2023-08-31 21:25:57,443 INFO L281 CegarLoopForPetriNet]: 99 programPoint places, 7 predicate places. [2023-08-31 21:25:57,443 INFO L495 AbstractCegarLoop]: Abstraction has has 106 places, 93 transitions, 398 flow [2023-08-31 21:25:57,443 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 297.8) internal successors, (1489), 5 states have internal predecessors, (1489), 0 states have call successors, (0), 0 states 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 21:25:57,444 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:25:57,444 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 21:25:57,444 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-31 21:25:57,444 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2023-08-31 21:25:57,444 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:25:57,445 INFO L85 PathProgramCache]: Analyzing trace with hash 1381194681, now seen corresponding path program 1 times [2023-08-31 21:25:57,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:25:57,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280189472] [2023-08-31 21:25:57,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:25:57,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:25:57,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:25:57,762 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-31 21:25:57,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:25:57,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280189472] [2023-08-31 21:25:57,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1280189472] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:25:57,763 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:25:57,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 21:25:57,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499805729] [2023-08-31 21:25:57,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:25:57,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 21:25:57,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:25:57,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 21:25:57,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 21:25:58,045 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 289 out of 605 [2023-08-31 21:25:58,047 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 93 transitions, 398 flow. Second operand has 6 states, 6 states have (on average 291.8333333333333) internal successors, (1751), 6 states have internal predecessors, (1751), 0 states have call successors, (0), 0 states 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 21:25:58,047 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:25:58,047 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 289 of 605 [2023-08-31 21:25:58,047 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:25:58,763 INFO L130 PetriNetUnfolder]: 2326/5105 cut-off events. [2023-08-31 21:25:58,763 INFO L131 PetriNetUnfolder]: For 3456/3523 co-relation queries the response was YES. [2023-08-31 21:25:58,781 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12242 conditions, 5105 events. 2326/5105 cut-off events. For 3456/3523 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 33200 event pairs, 1185 based on Foata normal form. 2/4887 useless extension candidates. Maximal degree in co-relation 12222. Up to 2410 conditions per place. [2023-08-31 21:25:58,798 INFO L137 encePairwiseOnDemand]: 599/605 looper letters, 132 selfloop transitions, 6 changer transitions 0/166 dead transitions. [2023-08-31 21:25:58,798 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 166 transitions, 945 flow [2023-08-31 21:25:58,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 21:25:58,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 21:25:58,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1842 transitions. [2023-08-31 21:25:58,803 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5074380165289256 [2023-08-31 21:25:58,803 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1842 transitions. [2023-08-31 21:25:58,803 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1842 transitions. [2023-08-31 21:25:58,804 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:25:58,804 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1842 transitions. [2023-08-31 21:25:58,807 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 307.0) internal successors, (1842), 6 states have internal predecessors, (1842), 0 states have call successors, (0), 0 states 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 21:25:58,811 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 605.0) internal successors, (4235), 7 states have internal predecessors, (4235), 0 states have call successors, (0), 0 states 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 21:25:58,812 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 605.0) internal successors, (4235), 7 states have internal predecessors, (4235), 0 states have call successors, (0), 0 states 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 21:25:58,812 INFO L175 Difference]: Start difference. First operand has 106 places, 93 transitions, 398 flow. Second operand 6 states and 1842 transitions. [2023-08-31 21:25:58,812 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 166 transitions, 945 flow [2023-08-31 21:25:58,818 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 166 transitions, 939 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-31 21:25:58,820 INFO L231 Difference]: Finished difference. Result has 108 places, 92 transitions, 402 flow [2023-08-31 21:25:58,821 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=605, PETRI_DIFFERENCE_MINUEND_FLOW=390, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=402, PETRI_PLACES=108, PETRI_TRANSITIONS=92} [2023-08-31 21:25:58,822 INFO L281 CegarLoopForPetriNet]: 99 programPoint places, 9 predicate places. [2023-08-31 21:25:58,822 INFO L495 AbstractCegarLoop]: Abstraction has has 108 places, 92 transitions, 402 flow [2023-08-31 21:25:58,823 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 291.8333333333333) internal successors, (1751), 6 states have internal predecessors, (1751), 0 states have call successors, (0), 0 states 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 21:25:58,823 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:25:58,823 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:25:58,823 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-31 21:25:58,823 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread2Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2023-08-31 21:25:58,823 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:25:58,824 INFO L85 PathProgramCache]: Analyzing trace with hash -981395581, now seen corresponding path program 1 times [2023-08-31 21:25:58,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:25:58,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118076852] [2023-08-31 21:25:58,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:25:58,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:25:58,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:25:59,171 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-31 21:25:59,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:25:59,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118076852] [2023-08-31 21:25:59,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118076852] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:25:59,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:25:59,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 21:25:59,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273423749] [2023-08-31 21:25:59,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:25:59,172 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 21:25:59,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:25:59,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 21:25:59,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 21:25:59,475 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 289 out of 605 [2023-08-31 21:25:59,477 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 92 transitions, 402 flow. Second operand has 6 states, 6 states have (on average 292.1666666666667) internal successors, (1753), 6 states have internal predecessors, (1753), 0 states have call successors, (0), 0 states 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 21:25:59,477 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:25:59,477 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 289 of 605 [2023-08-31 21:25:59,477 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:26:00,090 INFO L130 PetriNetUnfolder]: 2233/4961 cut-off events. [2023-08-31 21:26:00,090 INFO L131 PetriNetUnfolder]: For 3743/3771 co-relation queries the response was YES. [2023-08-31 21:26:00,111 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12208 conditions, 4961 events. 2233/4961 cut-off events. For 3743/3771 co-relation queries the response was YES. Maximal size of possible extension queue 111. Compared 33025 event pairs, 1206 based on Foata normal form. 0/4815 useless extension candidates. Maximal degree in co-relation 12188. Up to 2438 conditions per place. [2023-08-31 21:26:00,128 INFO L137 encePairwiseOnDemand]: 599/605 looper letters, 138 selfloop transitions, 5 changer transitions 0/171 dead transitions. [2023-08-31 21:26:00,129 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 171 transitions, 1050 flow [2023-08-31 21:26:00,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 21:26:00,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 21:26:00,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1835 transitions. [2023-08-31 21:26:00,133 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5055096418732782 [2023-08-31 21:26:00,134 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1835 transitions. [2023-08-31 21:26:00,134 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1835 transitions. [2023-08-31 21:26:00,135 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:26:00,135 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1835 transitions. [2023-08-31 21:26:00,138 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 305.8333333333333) internal successors, (1835), 6 states have internal predecessors, (1835), 0 states have call successors, (0), 0 states 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 21:26:00,142 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 605.0) internal successors, (4235), 7 states have internal predecessors, (4235), 0 states have call successors, (0), 0 states 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 21:26:00,144 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 605.0) internal successors, (4235), 7 states have internal predecessors, (4235), 0 states have call successors, (0), 0 states 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 21:26:00,145 INFO L175 Difference]: Start difference. First operand has 108 places, 92 transitions, 402 flow. Second operand 6 states and 1835 transitions. [2023-08-31 21:26:00,145 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 171 transitions, 1050 flow [2023-08-31 21:26:00,152 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 171 transitions, 1022 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-31 21:26:00,154 INFO L231 Difference]: Finished difference. Result has 107 places, 91 transitions, 398 flow [2023-08-31 21:26:00,155 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=605, PETRI_DIFFERENCE_MINUEND_FLOW=388, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=398, PETRI_PLACES=107, PETRI_TRANSITIONS=91} [2023-08-31 21:26:00,156 INFO L281 CegarLoopForPetriNet]: 99 programPoint places, 8 predicate places. [2023-08-31 21:26:00,156 INFO L495 AbstractCegarLoop]: Abstraction has has 107 places, 91 transitions, 398 flow [2023-08-31 21:26:00,156 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 292.1666666666667) internal successors, (1753), 6 states have internal predecessors, (1753), 0 states have call successors, (0), 0 states 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 21:26:00,157 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:26:00,157 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:26:00,157 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-31 21:26:00,157 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2023-08-31 21:26:00,157 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:26:00,158 INFO L85 PathProgramCache]: Analyzing trace with hash 30665844, now seen corresponding path program 1 times [2023-08-31 21:26:00,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:26:00,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417924176] [2023-08-31 21:26:00,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:26:00,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:26:00,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:26:00,459 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 21:26:00,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:26:00,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417924176] [2023-08-31 21:26:00,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [417924176] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:26:00,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:26:00,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 21:26:00,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908830524] [2023-08-31 21:26:00,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:26:00,461 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 21:26:00,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:26:00,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 21:26:00,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 21:26:00,721 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 290 out of 605 [2023-08-31 21:26:00,722 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 91 transitions, 398 flow. Second operand has 6 states, 6 states have (on average 292.6666666666667) internal successors, (1756), 6 states have internal predecessors, (1756), 0 states have call successors, (0), 0 states 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 21:26:00,722 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:26:00,722 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 290 of 605 [2023-08-31 21:26:00,722 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:26:01,255 INFO L130 PetriNetUnfolder]: 1918/4275 cut-off events. [2023-08-31 21:26:01,255 INFO L131 PetriNetUnfolder]: For 3314/3342 co-relation queries the response was YES. [2023-08-31 21:26:01,271 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10805 conditions, 4275 events. 1918/4275 cut-off events. For 3314/3342 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 27522 event pairs, 1344 based on Foata normal form. 0/4226 useless extension candidates. Maximal degree in co-relation 10785. Up to 2742 conditions per place. [2023-08-31 21:26:01,282 INFO L137 encePairwiseOnDemand]: 600/605 looper letters, 89 selfloop transitions, 4 changer transitions 58/178 dead transitions. [2023-08-31 21:26:01,283 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 178 transitions, 1150 flow [2023-08-31 21:26:01,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 21:26:01,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 21:26:01,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1833 transitions. [2023-08-31 21:26:01,287 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5049586776859504 [2023-08-31 21:26:01,287 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1833 transitions. [2023-08-31 21:26:01,287 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1833 transitions. [2023-08-31 21:26:01,288 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:26:01,289 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1833 transitions. [2023-08-31 21:26:01,291 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 305.5) internal successors, (1833), 6 states have internal predecessors, (1833), 0 states have call successors, (0), 0 states 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 21:26:01,296 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 605.0) internal successors, (4235), 7 states have internal predecessors, (4235), 0 states have call successors, (0), 0 states 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 21:26:01,297 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 605.0) internal successors, (4235), 7 states have internal predecessors, (4235), 0 states have call successors, (0), 0 states 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 21:26:01,297 INFO L175 Difference]: Start difference. First operand has 107 places, 91 transitions, 398 flow. Second operand 6 states and 1833 transitions. [2023-08-31 21:26:01,297 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 178 transitions, 1150 flow [2023-08-31 21:26:01,304 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 178 transitions, 1124 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-31 21:26:01,306 INFO L231 Difference]: Finished difference. Result has 106 places, 76 transitions, 283 flow [2023-08-31 21:26:01,306 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=605, PETRI_DIFFERENCE_MINUEND_FLOW=386, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=283, PETRI_PLACES=106, PETRI_TRANSITIONS=76} [2023-08-31 21:26:01,307 INFO L281 CegarLoopForPetriNet]: 99 programPoint places, 7 predicate places. [2023-08-31 21:26:01,307 INFO L495 AbstractCegarLoop]: Abstraction has has 106 places, 76 transitions, 283 flow [2023-08-31 21:26:01,307 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 292.6666666666667) internal successors, (1756), 6 states have internal predecessors, (1756), 0 states have call successors, (0), 0 states 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 21:26:01,308 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:26:01,308 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:26:01,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-08-31 21:26:01,308 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting thread2Err9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2023-08-31 21:26:01,308 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:26:01,309 INFO L85 PathProgramCache]: Analyzing trace with hash 2003056810, now seen corresponding path program 1 times [2023-08-31 21:26:01,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:26:01,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958743622] [2023-08-31 21:26:01,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:26:01,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:26:01,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:26:01,607 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-31 21:26:01,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:26:01,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958743622] [2023-08-31 21:26:01,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [958743622] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:26:01,608 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:26:01,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 21:26:01,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231308843] [2023-08-31 21:26:01,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:26:01,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 21:26:01,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:26:01,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 21:26:01,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 21:26:01,897 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 289 out of 605 [2023-08-31 21:26:01,898 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 76 transitions, 283 flow. Second operand has 6 states, 6 states have (on average 292.5) internal successors, (1755), 6 states have internal predecessors, (1755), 0 states have call successors, (0), 0 states 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 21:26:01,899 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:26:01,899 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 289 of 605 [2023-08-31 21:26:01,899 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:26:02,373 INFO L130 PetriNetUnfolder]: 1714/3672 cut-off events. [2023-08-31 21:26:02,373 INFO L131 PetriNetUnfolder]: For 2528/2543 co-relation queries the response was YES. [2023-08-31 21:26:02,382 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8976 conditions, 3672 events. 1714/3672 cut-off events. For 2528/2543 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 22855 event pairs, 1040 based on Foata normal form. 0/3602 useless extension candidates. Maximal degree in co-relation 8956. Up to 2148 conditions per place. [2023-08-31 21:26:02,391 INFO L137 encePairwiseOnDemand]: 599/605 looper letters, 81 selfloop transitions, 5 changer transitions 42/151 dead transitions. [2023-08-31 21:26:02,391 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 151 transitions, 849 flow [2023-08-31 21:26:02,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 21:26:02,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 21:26:02,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1834 transitions. [2023-08-31 21:26:02,397 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5052341597796143 [2023-08-31 21:26:02,397 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1834 transitions. [2023-08-31 21:26:02,397 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1834 transitions. [2023-08-31 21:26:02,398 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:26:02,399 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1834 transitions. [2023-08-31 21:26:02,402 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 305.6666666666667) internal successors, (1834), 6 states have internal predecessors, (1834), 0 states have call successors, (0), 0 states 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 21:26:02,407 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 605.0) internal successors, (4235), 7 states have internal predecessors, (4235), 0 states have call successors, (0), 0 states 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 21:26:02,408 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 605.0) internal successors, (4235), 7 states have internal predecessors, (4235), 0 states have call successors, (0), 0 states 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 21:26:02,408 INFO L175 Difference]: Start difference. First operand has 106 places, 76 transitions, 283 flow. Second operand 6 states and 1834 transitions. [2023-08-31 21:26:02,408 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 151 transitions, 849 flow [2023-08-31 21:26:02,414 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 151 transitions, 764 flow, removed 30 selfloop flow, removed 12 redundant places. [2023-08-31 21:26:02,416 INFO L231 Difference]: Finished difference. Result has 90 places, 65 transitions, 219 flow [2023-08-31 21:26:02,416 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=605, PETRI_DIFFERENCE_MINUEND_FLOW=244, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=219, PETRI_PLACES=90, PETRI_TRANSITIONS=65} [2023-08-31 21:26:02,417 INFO L281 CegarLoopForPetriNet]: 99 programPoint places, -9 predicate places. [2023-08-31 21:26:02,417 INFO L495 AbstractCegarLoop]: Abstraction has has 90 places, 65 transitions, 219 flow [2023-08-31 21:26:02,417 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 292.5) internal successors, (1755), 6 states have internal predecessors, (1755), 0 states have call successors, (0), 0 states 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 21:26:02,418 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:26:02,418 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:26:02,418 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-08-31 21:26:02,418 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting thread1Err9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2023-08-31 21:26:02,418 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:26:02,419 INFO L85 PathProgramCache]: Analyzing trace with hash 257699384, now seen corresponding path program 1 times [2023-08-31 21:26:02,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:26:02,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929860263] [2023-08-31 21:26:02,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:26:02,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:26:02,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:26:02,717 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-31 21:26:02,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:26:02,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929860263] [2023-08-31 21:26:02,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [929860263] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:26:02,718 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:26:02,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 21:26:02,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156702002] [2023-08-31 21:26:02,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:26:02,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 21:26:02,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:26:02,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 21:26:02,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 21:26:02,989 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 289 out of 605 [2023-08-31 21:26:02,991 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 65 transitions, 219 flow. Second operand has 6 states, 6 states have (on average 292.1666666666667) internal successors, (1753), 6 states have internal predecessors, (1753), 0 states have call successors, (0), 0 states 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 21:26:02,991 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:26:02,991 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 289 of 605 [2023-08-31 21:26:02,991 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:26:03,398 INFO L130 PetriNetUnfolder]: 1568/3209 cut-off events. [2023-08-31 21:26:03,399 INFO L131 PetriNetUnfolder]: For 1008/1014 co-relation queries the response was YES. [2023-08-31 21:26:03,407 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7347 conditions, 3209 events. 1568/3209 cut-off events. For 1008/1014 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 18164 event pairs, 1066 based on Foata normal form. 60/3255 useless extension candidates. Maximal degree in co-relation 7333. Up to 2024 conditions per place. [2023-08-31 21:26:03,410 INFO L137 encePairwiseOnDemand]: 599/605 looper letters, 0 selfloop transitions, 0 changer transitions 132/132 dead transitions. [2023-08-31 21:26:03,411 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 132 transitions, 655 flow [2023-08-31 21:26:03,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 21:26:03,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 21:26:03,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1836 transitions. [2023-08-31 21:26:03,416 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5057851239669422 [2023-08-31 21:26:03,417 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1836 transitions. [2023-08-31 21:26:03,417 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1836 transitions. [2023-08-31 21:26:03,418 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:26:03,418 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1836 transitions. [2023-08-31 21:26:03,422 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 306.0) internal successors, (1836), 6 states have internal predecessors, (1836), 0 states have call successors, (0), 0 states 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 21:26:03,427 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 605.0) internal successors, (4235), 7 states have internal predecessors, (4235), 0 states have call successors, (0), 0 states 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 21:26:03,428 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 605.0) internal successors, (4235), 7 states have internal predecessors, (4235), 0 states have call successors, (0), 0 states 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 21:26:03,428 INFO L175 Difference]: Start difference. First operand has 90 places, 65 transitions, 219 flow. Second operand 6 states and 1836 transitions. [2023-08-31 21:26:03,428 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 132 transitions, 655 flow [2023-08-31 21:26:03,433 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 132 transitions, 625 flow, removed 1 selfloop flow, removed 7 redundant places. [2023-08-31 21:26:03,434 INFO L231 Difference]: Finished difference. Result has 80 places, 0 transitions, 0 flow [2023-08-31 21:26:03,434 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=605, PETRI_DIFFERENCE_MINUEND_FLOW=203, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=80, PETRI_TRANSITIONS=0} [2023-08-31 21:26:03,434 INFO L281 CegarLoopForPetriNet]: 99 programPoint places, -19 predicate places. [2023-08-31 21:26:03,435 INFO L495 AbstractCegarLoop]: Abstraction has has 80 places, 0 transitions, 0 flow [2023-08-31 21:26:03,435 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 292.1666666666667) internal successors, (1753), 6 states have internal predecessors, (1753), 0 states have call successors, (0), 0 states 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 21:26:03,437 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (61 of 62 remaining) [2023-08-31 21:26:03,438 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (60 of 62 remaining) [2023-08-31 21:26:03,438 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (59 of 62 remaining) [2023-08-31 21:26:03,439 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (58 of 62 remaining) [2023-08-31 21:26:03,439 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (57 of 62 remaining) [2023-08-31 21:26:03,439 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (56 of 62 remaining) [2023-08-31 21:26:03,439 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (55 of 62 remaining) [2023-08-31 21:26:03,439 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (54 of 62 remaining) [2023-08-31 21:26:03,440 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (53 of 62 remaining) [2023-08-31 21:26:03,440 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONDATA_RACE (52 of 62 remaining) [2023-08-31 21:26:03,440 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONDATA_RACE (51 of 62 remaining) [2023-08-31 21:26:03,440 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err11ASSERT_VIOLATIONDATA_RACE (50 of 62 remaining) [2023-08-31 21:26:03,440 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (49 of 62 remaining) [2023-08-31 21:26:03,441 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (48 of 62 remaining) [2023-08-31 21:26:03,441 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (47 of 62 remaining) [2023-08-31 21:26:03,441 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (46 of 62 remaining) [2023-08-31 21:26:03,441 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (45 of 62 remaining) [2023-08-31 21:26:03,441 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (44 of 62 remaining) [2023-08-31 21:26:03,442 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (43 of 62 remaining) [2023-08-31 21:26:03,442 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (42 of 62 remaining) [2023-08-31 21:26:03,442 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (41 of 62 remaining) [2023-08-31 21:26:03,442 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (40 of 62 remaining) [2023-08-31 21:26:03,442 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONDATA_RACE (39 of 62 remaining) [2023-08-31 21:26:03,443 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONDATA_RACE (38 of 62 remaining) [2023-08-31 21:26:03,443 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (37 of 62 remaining) [2023-08-31 21:26:03,443 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (36 of 62 remaining) [2023-08-31 21:26:03,443 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (35 of 62 remaining) [2023-08-31 21:26:03,443 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (34 of 62 remaining) [2023-08-31 21:26:03,444 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (33 of 62 remaining) [2023-08-31 21:26:03,444 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (32 of 62 remaining) [2023-08-31 21:26:03,444 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (31 of 62 remaining) [2023-08-31 21:26:03,444 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (30 of 62 remaining) [2023-08-31 21:26:03,444 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (29 of 62 remaining) [2023-08-31 21:26:03,445 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (28 of 62 remaining) [2023-08-31 21:26:03,445 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (27 of 62 remaining) [2023-08-31 21:26:03,445 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (26 of 62 remaining) [2023-08-31 21:26:03,445 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (25 of 62 remaining) [2023-08-31 21:26:03,445 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (24 of 62 remaining) [2023-08-31 21:26:03,446 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (23 of 62 remaining) [2023-08-31 21:26:03,446 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (22 of 62 remaining) [2023-08-31 21:26:03,446 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (21 of 62 remaining) [2023-08-31 21:26:03,446 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (20 of 62 remaining) [2023-08-31 21:26:03,446 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (19 of 62 remaining) [2023-08-31 21:26:03,447 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (18 of 62 remaining) [2023-08-31 21:26:03,447 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (17 of 62 remaining) [2023-08-31 21:26:03,447 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (16 of 62 remaining) [2023-08-31 21:26:03,447 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (15 of 62 remaining) [2023-08-31 21:26:03,447 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONDATA_RACE (14 of 62 remaining) [2023-08-31 21:26:03,448 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONDATA_RACE (13 of 62 remaining) [2023-08-31 21:26:03,448 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err11ASSERT_VIOLATIONDATA_RACE (12 of 62 remaining) [2023-08-31 21:26:03,448 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (11 of 62 remaining) [2023-08-31 21:26:03,448 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (10 of 62 remaining) [2023-08-31 21:26:03,448 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (9 of 62 remaining) [2023-08-31 21:26:03,449 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (8 of 62 remaining) [2023-08-31 21:26:03,449 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (7 of 62 remaining) [2023-08-31 21:26:03,449 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (6 of 62 remaining) [2023-08-31 21:26:03,449 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (5 of 62 remaining) [2023-08-31 21:26:03,449 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (4 of 62 remaining) [2023-08-31 21:26:03,450 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (3 of 62 remaining) [2023-08-31 21:26:03,450 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (2 of 62 remaining) [2023-08-31 21:26:03,450 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONDATA_RACE (1 of 62 remaining) [2023-08-31 21:26:03,450 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONDATA_RACE (0 of 62 remaining) [2023-08-31 21:26:03,450 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-08-31 21:26:03,451 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:26:03,456 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-31 21:26:03,456 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-31 21:26:03,460 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.08 09:26:03 BasicIcfg [2023-08-31 21:26:03,460 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-31 21:26:03,461 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-31 21:26:03,461 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-31 21:26:03,461 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-31 21:26:03,462 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 09:25:43" (3/4) ... [2023-08-31 21:26:03,464 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-31 21:26:03,469 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2023-08-31 21:26:03,469 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2023-08-31 21:26:03,475 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 24 nodes and edges [2023-08-31 21:26:03,476 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-08-31 21:26:03,476 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-31 21:26:03,477 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-31 21:26:03,526 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-31 21:26:03,527 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-31 21:26:03,527 INFO L158 Benchmark]: Toolchain (without parser) took 20808.13ms. Allocated memory was 75.5MB in the beginning and 1.3GB in the end (delta: 1.2GB). Free memory was 53.0MB in the beginning and 816.9MB in the end (delta: -763.9MB). Peak memory consumption was 462.1MB. Max. memory is 16.1GB. [2023-08-31 21:26:03,528 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 58.7MB. Free memory is still 36.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-31 21:26:03,528 INFO L158 Benchmark]: CACSL2BoogieTranslator took 294.43ms. Allocated memory is still 75.5MB. Free memory was 52.8MB in the beginning and 41.0MB in the end (delta: 11.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-08-31 21:26:03,528 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.71ms. Allocated memory is still 75.5MB. Free memory was 41.0MB in the beginning and 38.7MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-31 21:26:03,528 INFO L158 Benchmark]: Boogie Preprocessor took 34.90ms. Allocated memory is still 75.5MB. Free memory was 38.7MB in the beginning and 36.5MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-31 21:26:03,529 INFO L158 Benchmark]: RCFGBuilder took 697.42ms. Allocated memory is still 75.5MB. Free memory was 36.2MB in the beginning and 30.0MB in the end (delta: 6.3MB). Peak memory consumption was 6.5MB. Max. memory is 16.1GB. [2023-08-31 21:26:03,529 INFO L158 Benchmark]: TraceAbstraction took 19643.26ms. Allocated memory was 92.3MB in the beginning and 1.3GB in the end (delta: 1.2GB). Free memory was 69.2MB in the beginning and 821.1MB in the end (delta: -751.9MB). Peak memory consumption was 455.9MB. Max. memory is 16.1GB. [2023-08-31 21:26:03,529 INFO L158 Benchmark]: Witness Printer took 65.86ms. Allocated memory is still 1.3GB. Free memory was 821.1MB in the beginning and 816.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-31 21:26:03,531 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 58.7MB. Free memory is still 36.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 294.43ms. Allocated memory is still 75.5MB. Free memory was 52.8MB in the beginning and 41.0MB in the end (delta: 11.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.71ms. Allocated memory is still 75.5MB. Free memory was 41.0MB in the beginning and 38.7MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.90ms. Allocated memory is still 75.5MB. Free memory was 38.7MB in the beginning and 36.5MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 697.42ms. Allocated memory is still 75.5MB. Free memory was 36.2MB in the beginning and 30.0MB in the end (delta: 6.3MB). Peak memory consumption was 6.5MB. Max. memory is 16.1GB. * TraceAbstraction took 19643.26ms. Allocated memory was 92.3MB in the beginning and 1.3GB in the end (delta: 1.2GB). Free memory was 69.2MB in the beginning and 821.1MB in the end (delta: -751.9MB). Peak memory consumption was 455.9MB. Max. memory is 16.1GB. * Witness Printer took 65.86ms. Allocated memory is still 1.3GB. Free memory was 821.1MB in the beginning and 816.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.3s, 295 PlacesBefore, 99 PlacesAfterwards, 304 TransitionsBefore, 102 TransitionsAfterwards, 13068 CoEnabledTransitionPairs, 7 FixpointIterations, 154 TrivialSequentialCompositions, 98 ConcurrentSequentialCompositions, 16 TrivialYvCompositions, 10 ConcurrentYvCompositions, 6 ChoiceCompositions, 284 TotalNumberOfCompositions, 59450 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 16997, independent: 16026, independent conditional: 0, independent unconditional: 16026, dependent: 971, dependent conditional: 0, dependent unconditional: 971, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 7087, independent: 6887, independent conditional: 0, independent unconditional: 6887, dependent: 200, dependent conditional: 0, dependent unconditional: 200, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 16997, independent: 9139, independent conditional: 0, independent unconditional: 9139, dependent: 771, dependent conditional: 0, dependent unconditional: 771, unknown: 7087, unknown conditional: 0, unknown unconditional: 7087] , Statistics on independence cache: Total cache size (in pairs): 1107, Positive cache size: 1000, Positive conditional cache size: 0, Positive unconditional cache size: 1000, Negative cache size: 107, Negative conditional cache size: 0, Negative unconditional cache size: 107, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 46]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 46]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 46]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 46]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 47]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 47]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 47]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 47]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 47]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 47]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 58]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 58]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 58]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 58]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 59]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 59]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 59]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 59]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 59]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 59]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 60]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 60]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 73]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 74]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 75]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 75]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 96]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 76]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 76]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 96]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 81]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 82]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 84]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 84]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 433 locations, 62 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 19.5s, OverallIterations: 17, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 10.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 6.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2916 SdHoareTripleChecker+Valid, 4.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1959 mSDsluCounter, 413 SdHoareTripleChecker+Invalid, 3.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 274 mSDsCounter, 663 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5510 IncrementalHoareTripleChecker+Invalid, 6173 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 663 mSolverCounterUnsat, 139 mSDtfsCounter, 5510 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 73 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=402occurred in iteration=13, InterpolantAutomatonStates: 82, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 243 NumberOfCodeBlocks, 243 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 226 ConstructedInterpolants, 0 QuantifiedInterpolants, 986 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 17 InterpolantComputations, 17 PerfectInterpolantSequences, 10/10 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 36 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-31 21:26:03,565 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE