./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/weaver/chl-file-item-symm.wvr.c --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/weaver/chl-file-item-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 846c6ea342419c7ea85c72de8af40f1cf8af72c22131b8a3f2ebdacec113c699 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-29 03:24:08,670 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 03:24:08,673 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 03:24:08,719 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 03:24:08,722 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 03:24:08,725 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 03:24:08,727 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 03:24:08,730 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 03:24:08,733 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 03:24:08,737 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 03:24:08,739 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 03:24:08,741 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 03:24:08,742 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 03:24:08,744 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 03:24:08,745 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 03:24:08,753 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 03:24:08,754 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 03:24:08,756 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 03:24:08,757 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 03:24:08,763 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 03:24:08,764 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 03:24:08,767 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 03:24:08,768 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 03:24:08,769 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 03:24:08,776 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 03:24:08,777 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 03:24:08,777 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 03:24:08,779 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 03:24:08,779 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 03:24:08,781 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 03:24:08,781 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 03:24:08,787 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 03:24:08,789 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 03:24:08,789 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 03:24:08,790 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 03:24:08,791 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 03:24:08,791 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 03:24:08,791 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 03:24:08,792 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 03:24:08,792 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 03:24:08,793 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 03:24:08,794 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-29 03:24:08,837 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 03:24:08,838 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 03:24:08,839 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 03:24:08,839 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 03:24:08,840 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 03:24:08,840 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 03:24:08,840 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 03:24:08,840 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 03:24:08,841 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 03:24:08,841 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 03:24:08,842 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 03:24:08,842 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 03:24:08,842 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 03:24:08,842 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 03:24:08,842 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 03:24:08,843 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-29 03:24:08,843 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 03:24:08,843 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-29 03:24:08,843 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-29 03:24:08,844 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 03:24:08,844 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-29 03:24:08,848 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 03:24:08,848 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-29 03:24:08,849 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 03:24:08,849 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 03:24:08,849 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 03:24:08,849 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 03:24:08,850 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 03:24:08,850 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 03:24:08,850 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-29 03:24:08,850 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 03:24:08,850 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 03:24:08,851 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 03:24:08,851 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-29 03:24:08,851 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 03:24:08,851 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 03:24:08,851 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 03:24:08,851 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 846c6ea342419c7ea85c72de8af40f1cf8af72c22131b8a3f2ebdacec113c699 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-29 03:24:09,157 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 03:24:09,175 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 03:24:09,179 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 03:24:09,181 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 03:24:09,182 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 03:24:09,183 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-file-item-symm.wvr.c [2023-08-29 03:24:10,315 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 03:24:10,580 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 03:24:10,581 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-file-item-symm.wvr.c [2023-08-29 03:24:10,590 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5cc51b95d/8f05530d79fe4b599b298fdcecc3d4c7/FLAG5e55c221a [2023-08-29 03:24:10,611 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5cc51b95d/8f05530d79fe4b599b298fdcecc3d4c7 [2023-08-29 03:24:10,615 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 03:24:10,616 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 03:24:10,618 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 03:24:10,618 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 03:24:10,621 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 03:24:10,622 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 03:24:10" (1/1) ... [2023-08-29 03:24:10,624 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3af54048 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:24:10, skipping insertion in model container [2023-08-29 03:24:10,624 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 03:24:10" (1/1) ... [2023-08-29 03:24:10,630 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 03:24:10,650 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 03:24:10,807 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-file-item-symm.wvr.c[2495,2508] [2023-08-29 03:24:10,816 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 03:24:10,829 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 03:24:10,872 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-file-item-symm.wvr.c[2495,2508] [2023-08-29 03:24:10,882 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 03:24:10,897 INFO L208 MainTranslator]: Completed translation [2023-08-29 03:24:10,897 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:24:10 WrapperNode [2023-08-29 03:24:10,898 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 03:24:10,899 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 03:24:10,899 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 03:24:10,899 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 03:24:10,906 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:24:10" (1/1) ... [2023-08-29 03:24:10,925 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:24:10" (1/1) ... [2023-08-29 03:24:10,962 INFO L138 Inliner]: procedures = 22, calls = 25, calls flagged for inlining = 9, calls inlined = 11, statements flattened = 246 [2023-08-29 03:24:10,963 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 03:24:10,964 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 03:24:10,964 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 03:24:10,965 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 03:24:10,972 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:24:10" (1/1) ... [2023-08-29 03:24:10,973 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:24:10" (1/1) ... [2023-08-29 03:24:10,986 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:24:10" (1/1) ... [2023-08-29 03:24:10,989 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:24:10" (1/1) ... [2023-08-29 03:24:10,996 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:24:10" (1/1) ... [2023-08-29 03:24:11,008 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:24:10" (1/1) ... [2023-08-29 03:24:11,010 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:24:10" (1/1) ... [2023-08-29 03:24:11,011 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:24:10" (1/1) ... [2023-08-29 03:24:11,013 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 03:24:11,014 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 03:24:11,014 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 03:24:11,014 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 03:24:11,015 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:24:10" (1/1) ... [2023-08-29 03:24:11,026 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 03:24:11,038 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 03:24:11,050 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-29 03:24:11,087 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-29 03:24:11,103 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-29 03:24:11,103 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-29 03:24:11,103 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-29 03:24:11,103 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-29 03:24:11,104 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-29 03:24:11,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-29 03:24:11,104 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 03:24:11,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-29 03:24:11,104 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 03:24:11,104 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 03:24:11,104 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-29 03:24:11,105 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 03:24:11,106 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-29 03:24:11,262 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 03:24:11,267 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 03:24:11,776 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 03:24:11,787 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 03:24:11,788 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-29 03:24:11,790 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 03:24:11 BoogieIcfgContainer [2023-08-29 03:24:11,790 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 03:24:11,791 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 03:24:11,792 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 03:24:11,794 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 03:24:11,795 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 03:24:10" (1/3) ... [2023-08-29 03:24:11,795 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61751089 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 03:24:11, skipping insertion in model container [2023-08-29 03:24:11,795 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:24:10" (2/3) ... [2023-08-29 03:24:11,796 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61751089 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 03:24:11, skipping insertion in model container [2023-08-29 03:24:11,796 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 03:24:11" (3/3) ... [2023-08-29 03:24:11,797 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-file-item-symm.wvr.c [2023-08-29 03:24:11,808 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-29 03:24:11,817 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 03:24:11,817 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 32 error locations. [2023-08-29 03:24:11,817 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 03:24:11,948 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-29 03:24:11,992 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 295 places, 306 transitions, 628 flow [2023-08-29 03:24:12,084 INFO L130 PetriNetUnfolder]: 18/304 cut-off events. [2023-08-29 03:24:12,084 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-29 03:24:12,095 INFO L83 FinitePrefix]: Finished finitePrefix Result has 313 conditions, 304 events. 18/304 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 625 event pairs, 0 based on Foata normal form. 0/254 useless extension candidates. Maximal degree in co-relation 165. Up to 2 conditions per place. [2023-08-29 03:24:12,095 INFO L82 GeneralOperation]: Start removeDead. Operand has 295 places, 306 transitions, 628 flow [2023-08-29 03:24:12,104 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 277 places, 286 transitions, 584 flow [2023-08-29 03:24:12,108 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 03:24:12,122 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 277 places, 286 transitions, 584 flow [2023-08-29 03:24:12,124 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 277 places, 286 transitions, 584 flow [2023-08-29 03:24:12,124 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 277 places, 286 transitions, 584 flow [2023-08-29 03:24:12,183 INFO L130 PetriNetUnfolder]: 16/286 cut-off events. [2023-08-29 03:24:12,183 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-29 03:24:12,186 INFO L83 FinitePrefix]: Finished finitePrefix Result has 295 conditions, 286 events. 16/286 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 613 event pairs, 0 based on Foata normal form. 0/239 useless extension candidates. Maximal degree in co-relation 165. Up to 2 conditions per place. [2023-08-29 03:24:12,193 INFO L119 LiptonReduction]: Number of co-enabled transitions 15476 [2023-08-29 03:24:18,029 INFO L134 LiptonReduction]: Checked pairs total: 54733 [2023-08-29 03:24:18,030 INFO L136 LiptonReduction]: Total number of compositions: 294 [2023-08-29 03:24:18,043 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 03:24:18,049 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;@c7bb5db, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 03:24:18,049 INFO L358 AbstractCegarLoop]: Starting to check reachability of 52 error locations. [2023-08-29 03:24:18,051 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-29 03:24:18,051 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 03:24:18,052 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:24:18,052 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-29 03:24:18,053 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 48 more)] === [2023-08-29 03:24:18,057 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:24:18,057 INFO L85 PathProgramCache]: Analyzing trace with hash 1144, now seen corresponding path program 1 times [2023-08-29 03:24:18,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:24:18,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609520398] [2023-08-29 03:24:18,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:24:18,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:24:18,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:24:18,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 03:24:18,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:24:18,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609520398] [2023-08-29 03:24:18,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1609520398] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:24:18,154 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:24:18,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-29 03:24:18,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921264261] [2023-08-29 03:24:18,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:24:18,163 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-29 03:24:18,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:24:18,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-29 03:24:18,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-29 03:24:18,199 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 294 out of 600 [2023-08-29 03:24:18,206 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 81 transitions, 174 flow. Second operand has 2 states, 2 states have (on average 294.5) internal successors, (589), 2 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:24:18,207 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:24:18,207 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 294 of 600 [2023-08-29 03:24:18,208 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:24:18,400 INFO L130 PetriNetUnfolder]: 400/872 cut-off events. [2023-08-29 03:24:18,401 INFO L131 PetriNetUnfolder]: For 18/18 co-relation queries the response was YES. [2023-08-29 03:24:18,405 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1506 conditions, 872 events. 400/872 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 5267 event pairs, 240 based on Foata normal form. 1/664 useless extension candidates. Maximal degree in co-relation 1400. Up to 601 conditions per place. [2023-08-29 03:24:18,410 INFO L137 encePairwiseOnDemand]: 585/600 looper letters, 31 selfloop transitions, 0 changer transitions 1/66 dead transitions. [2023-08-29 03:24:18,411 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 66 transitions, 208 flow [2023-08-29 03:24:18,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-29 03:24:18,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-29 03:24:18,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 635 transitions. [2023-08-29 03:24:18,433 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5291666666666667 [2023-08-29 03:24:18,434 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 635 transitions. [2023-08-29 03:24:18,435 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 635 transitions. [2023-08-29 03:24:18,438 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:24:18,441 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 635 transitions. [2023-08-29 03:24:18,447 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 317.5) internal successors, (635), 2 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:24:18,453 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 600.0) internal successors, (1800), 3 states have internal predecessors, (1800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:24:18,454 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 600.0) internal successors, (1800), 3 states have internal predecessors, (1800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:24:18,456 INFO L175 Difference]: Start difference. First operand has 80 places, 81 transitions, 174 flow. Second operand 2 states and 635 transitions. [2023-08-29 03:24:18,457 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 66 transitions, 208 flow [2023-08-29 03:24:18,461 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 66 transitions, 200 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-29 03:24:18,463 INFO L231 Difference]: Finished difference. Result has 62 places, 65 transitions, 133 flow [2023-08-29 03:24:18,465 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=600, PETRI_DIFFERENCE_MINUEND_FLOW=136, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=133, PETRI_PLACES=62, PETRI_TRANSITIONS=65} [2023-08-29 03:24:18,469 INFO L281 CegarLoopForPetriNet]: 80 programPoint places, -18 predicate places. [2023-08-29 03:24:18,469 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 65 transitions, 133 flow [2023-08-29 03:24:18,470 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 294.5) internal successors, (589), 2 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:24:18,470 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:24:18,471 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-29 03:24:18,472 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-29 03:24:18,473 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 48 more)] === [2023-08-29 03:24:18,478 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:24:18,480 INFO L85 PathProgramCache]: Analyzing trace with hash 35350171, now seen corresponding path program 1 times [2023-08-29 03:24:18,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:24:18,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207115222] [2023-08-29 03:24:18,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:24:18,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:24:18,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:24:18,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 03:24:18,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:24:18,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207115222] [2023-08-29 03:24:18,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [207115222] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:24:18,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:24:18,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 03:24:18,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717142836] [2023-08-29 03:24:18,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:24:18,572 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 03:24:18,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:24:18,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 03:24:18,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 03:24:18,592 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 284 out of 600 [2023-08-29 03:24:18,595 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 65 transitions, 133 flow. Second operand has 3 states, 3 states have (on average 285.3333333333333) internal successors, (856), 3 states have internal predecessors, (856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:24:18,595 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:24:18,595 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 284 of 600 [2023-08-29 03:24:18,595 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:24:18,732 INFO L130 PetriNetUnfolder]: 552/1139 cut-off events. [2023-08-29 03:24:18,732 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2023-08-29 03:24:18,734 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1993 conditions, 1139 events. 552/1139 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 6460 event pairs, 202 based on Foata normal form. 0/929 useless extension candidates. Maximal degree in co-relation 1990. Up to 828 conditions per place. [2023-08-29 03:24:18,740 INFO L137 encePairwiseOnDemand]: 594/600 looper letters, 40 selfloop transitions, 3 changer transitions 0/70 dead transitions. [2023-08-29 03:24:18,741 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 70 transitions, 230 flow [2023-08-29 03:24:18,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 03:24:18,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 03:24:18,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 898 transitions. [2023-08-29 03:24:18,744 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4988888888888889 [2023-08-29 03:24:18,744 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 898 transitions. [2023-08-29 03:24:18,745 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 898 transitions. [2023-08-29 03:24:18,745 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:24:18,745 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 898 transitions. [2023-08-29 03:24:18,748 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 299.3333333333333) internal successors, (898), 3 states have internal predecessors, (898), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:24:18,752 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 600.0) internal successors, (2400), 4 states have internal predecessors, (2400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:24:18,753 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 600.0) internal successors, (2400), 4 states have internal predecessors, (2400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:24:18,754 INFO L175 Difference]: Start difference. First operand has 62 places, 65 transitions, 133 flow. Second operand 3 states and 898 transitions. [2023-08-29 03:24:18,754 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 70 transitions, 230 flow [2023-08-29 03:24:18,754 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 70 transitions, 230 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 03:24:18,756 INFO L231 Difference]: Finished difference. Result has 61 places, 65 transitions, 148 flow [2023-08-29 03:24:18,756 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=600, PETRI_DIFFERENCE_MINUEND_FLOW=127, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=148, PETRI_PLACES=61, PETRI_TRANSITIONS=65} [2023-08-29 03:24:18,757 INFO L281 CegarLoopForPetriNet]: 80 programPoint places, -19 predicate places. [2023-08-29 03:24:18,757 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 65 transitions, 148 flow [2023-08-29 03:24:18,758 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 285.3333333333333) internal successors, (856), 3 states have internal predecessors, (856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:24:18,758 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:24:18,758 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-29 03:24:18,759 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-29 03:24:18,759 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 48 more)] === [2023-08-29 03:24:18,762 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:24:18,763 INFO L85 PathProgramCache]: Analyzing trace with hash -388194731, now seen corresponding path program 1 times [2023-08-29 03:24:18,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:24:18,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245487249] [2023-08-29 03:24:18,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:24:18,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:24:18,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:24:18,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 03:24:18,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:24:18,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245487249] [2023-08-29 03:24:18,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245487249] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:24:18,804 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:24:18,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 03:24:18,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013391174] [2023-08-29 03:24:18,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:24:18,805 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 03:24:18,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:24:18,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 03:24:18,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 03:24:18,821 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 284 out of 600 [2023-08-29 03:24:18,823 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 65 transitions, 148 flow. Second operand has 3 states, 3 states have (on average 285.3333333333333) internal successors, (856), 3 states have internal predecessors, (856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:24:18,823 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:24:18,823 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 284 of 600 [2023-08-29 03:24:18,823 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:24:18,936 INFO L130 PetriNetUnfolder]: 453/994 cut-off events. [2023-08-29 03:24:18,936 INFO L131 PetriNetUnfolder]: For 9/9 co-relation queries the response was YES. [2023-08-29 03:24:18,938 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1738 conditions, 994 events. 453/994 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 5908 event pairs, 126 based on Foata normal form. 0/793 useless extension candidates. Maximal degree in co-relation 1734. Up to 675 conditions per place. [2023-08-29 03:24:18,942 INFO L137 encePairwiseOnDemand]: 594/600 looper letters, 35 selfloop transitions, 3 changer transitions 0/68 dead transitions. [2023-08-29 03:24:18,942 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 68 transitions, 231 flow [2023-08-29 03:24:18,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 03:24:18,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 03:24:18,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 893 transitions. [2023-08-29 03:24:18,945 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4961111111111111 [2023-08-29 03:24:18,945 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 893 transitions. [2023-08-29 03:24:18,945 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 893 transitions. [2023-08-29 03:24:18,946 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:24:18,946 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 893 transitions. [2023-08-29 03:24:18,961 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 297.6666666666667) internal successors, (893), 3 states have internal predecessors, (893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:24:18,964 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 600.0) internal successors, (2400), 4 states have internal predecessors, (2400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:24:18,965 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 600.0) internal successors, (2400), 4 states have internal predecessors, (2400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:24:18,965 INFO L175 Difference]: Start difference. First operand has 61 places, 65 transitions, 148 flow. Second operand 3 states and 893 transitions. [2023-08-29 03:24:18,966 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 68 transitions, 231 flow [2023-08-29 03:24:18,967 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 68 transitions, 231 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 03:24:18,968 INFO L231 Difference]: Finished difference. Result has 61 places, 65 transitions, 163 flow [2023-08-29 03:24:18,969 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=600, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=163, PETRI_PLACES=61, PETRI_TRANSITIONS=65} [2023-08-29 03:24:18,969 INFO L281 CegarLoopForPetriNet]: 80 programPoint places, -19 predicate places. [2023-08-29 03:24:18,969 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 65 transitions, 163 flow [2023-08-29 03:24:18,970 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 285.3333333333333) internal successors, (856), 3 states have internal predecessors, (856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:24:18,970 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:24:18,970 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:24:18,970 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-29 03:24:18,971 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 48 more)] === [2023-08-29 03:24:18,971 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:24:18,971 INFO L85 PathProgramCache]: Analyzing trace with hash 850877374, now seen corresponding path program 1 times [2023-08-29 03:24:18,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:24:18,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246372574] [2023-08-29 03:24:18,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:24:18,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:24:18,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:24:19,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 03:24:19,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:24:19,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246372574] [2023-08-29 03:24:19,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1246372574] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:24:19,010 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:24:19,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 03:24:19,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876456767] [2023-08-29 03:24:19,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:24:19,011 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 03:24:19,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:24:19,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 03:24:19,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 03:24:19,026 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 286 out of 600 [2023-08-29 03:24:19,027 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 65 transitions, 163 flow. Second operand has 3 states, 3 states have (on average 287.6666666666667) internal successors, (863), 3 states have internal predecessors, (863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:24:19,027 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:24:19,027 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 286 of 600 [2023-08-29 03:24:19,027 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:24:19,160 INFO L130 PetriNetUnfolder]: 442/929 cut-off events. [2023-08-29 03:24:19,160 INFO L131 PetriNetUnfolder]: For 23/23 co-relation queries the response was YES. [2023-08-29 03:24:19,162 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1675 conditions, 929 events. 442/929 cut-off events. For 23/23 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 5511 event pairs, 187 based on Foata normal form. 0/696 useless extension candidates. Maximal degree in co-relation 1670. Up to 520 conditions per place. [2023-08-29 03:24:19,166 INFO L137 encePairwiseOnDemand]: 593/600 looper letters, 35 selfloop transitions, 6 changer transitions 7/79 dead transitions. [2023-08-29 03:24:19,166 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 79 transitions, 288 flow [2023-08-29 03:24:19,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 03:24:19,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 03:24:19,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 905 transitions. [2023-08-29 03:24:19,170 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5027777777777778 [2023-08-29 03:24:19,171 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 905 transitions. [2023-08-29 03:24:19,171 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 905 transitions. [2023-08-29 03:24:19,172 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:24:19,173 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 905 transitions. [2023-08-29 03:24:19,175 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 301.6666666666667) internal successors, (905), 3 states have internal predecessors, (905), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:24:19,178 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 600.0) internal successors, (2400), 4 states have internal predecessors, (2400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:24:19,179 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 600.0) internal successors, (2400), 4 states have internal predecessors, (2400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:24:19,179 INFO L175 Difference]: Start difference. First operand has 61 places, 65 transitions, 163 flow. Second operand 3 states and 905 transitions. [2023-08-29 03:24:19,179 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 79 transitions, 288 flow [2023-08-29 03:24:19,181 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 79 transitions, 288 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 03:24:19,183 INFO L231 Difference]: Finished difference. Result has 62 places, 64 transitions, 173 flow [2023-08-29 03:24:19,183 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=600, PETRI_DIFFERENCE_MINUEND_FLOW=161, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=173, PETRI_PLACES=62, PETRI_TRANSITIONS=64} [2023-08-29 03:24:19,184 INFO L281 CegarLoopForPetriNet]: 80 programPoint places, -18 predicate places. [2023-08-29 03:24:19,184 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 64 transitions, 173 flow [2023-08-29 03:24:19,185 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 287.6666666666667) internal successors, (863), 3 states have internal predecessors, (863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:24:19,185 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:24:19,185 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:24:19,185 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-29 03:24:19,186 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 48 more)] === [2023-08-29 03:24:19,186 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:24:19,186 INFO L85 PathProgramCache]: Analyzing trace with hash 607281875, now seen corresponding path program 1 times [2023-08-29 03:24:19,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:24:19,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983361052] [2023-08-29 03:24:19,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:24:19,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:24:19,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:24:19,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 03:24:19,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:24:19,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983361052] [2023-08-29 03:24:19,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1983361052] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:24:19,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:24:19,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 03:24:19,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753681042] [2023-08-29 03:24:19,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:24:19,248 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 03:24:19,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:24:19,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 03:24:19,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 03:24:19,263 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 284 out of 600 [2023-08-29 03:24:19,264 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 64 transitions, 173 flow. Second operand has 3 states, 3 states have (on average 286.0) internal successors, (858), 3 states have internal predecessors, (858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:24:19,265 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:24:19,265 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 284 of 600 [2023-08-29 03:24:19,265 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:24:19,421 INFO L130 PetriNetUnfolder]: 689/1367 cut-off events. [2023-08-29 03:24:19,422 INFO L131 PetriNetUnfolder]: For 192/192 co-relation queries the response was YES. [2023-08-29 03:24:19,424 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2742 conditions, 1367 events. 689/1367 cut-off events. For 192/192 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 8404 event pairs, 142 based on Foata normal form. 0/1088 useless extension candidates. Maximal degree in co-relation 2736. Up to 738 conditions per place. [2023-08-29 03:24:19,429 INFO L137 encePairwiseOnDemand]: 594/600 looper letters, 56 selfloop transitions, 3 changer transitions 0/83 dead transitions. [2023-08-29 03:24:19,429 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 83 transitions, 341 flow [2023-08-29 03:24:19,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 03:24:19,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 03:24:19,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 912 transitions. [2023-08-29 03:24:19,432 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5066666666666667 [2023-08-29 03:24:19,432 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 912 transitions. [2023-08-29 03:24:19,432 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 912 transitions. [2023-08-29 03:24:19,433 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:24:19,433 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 912 transitions. [2023-08-29 03:24:19,436 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 304.0) internal successors, (912), 3 states have internal predecessors, (912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:24:19,439 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 600.0) internal successors, (2400), 4 states have internal predecessors, (2400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:24:19,440 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 600.0) internal successors, (2400), 4 states have internal predecessors, (2400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:24:19,440 INFO L175 Difference]: Start difference. First operand has 62 places, 64 transitions, 173 flow. Second operand 3 states and 912 transitions. [2023-08-29 03:24:19,440 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 83 transitions, 341 flow [2023-08-29 03:24:19,447 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 83 transitions, 323 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 03:24:19,449 INFO L231 Difference]: Finished difference. Result has 60 places, 64 transitions, 176 flow [2023-08-29 03:24:19,449 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=600, PETRI_DIFFERENCE_MINUEND_FLOW=155, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=176, PETRI_PLACES=60, PETRI_TRANSITIONS=64} [2023-08-29 03:24:19,452 INFO L281 CegarLoopForPetriNet]: 80 programPoint places, -20 predicate places. [2023-08-29 03:24:19,453 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 64 transitions, 176 flow [2023-08-29 03:24:19,453 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 286.0) internal successors, (858), 3 states have internal predecessors, (858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:24:19,453 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:24:19,454 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:24:19,454 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-29 03:24:19,454 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 48 more)] === [2023-08-29 03:24:19,454 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:24:19,454 INFO L85 PathProgramCache]: Analyzing trace with hash -517457380, now seen corresponding path program 1 times [2023-08-29 03:24:19,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:24:19,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903683684] [2023-08-29 03:24:19,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:24:19,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:24:19,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:24:19,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 03:24:19,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:24:19,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903683684] [2023-08-29 03:24:19,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1903683684] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:24:19,515 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:24:19,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 03:24:19,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337520997] [2023-08-29 03:24:19,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:24:19,516 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 03:24:19,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:24:19,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 03:24:19,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 03:24:19,534 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 284 out of 600 [2023-08-29 03:24:19,535 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 64 transitions, 176 flow. Second operand has 3 states, 3 states have (on average 286.3333333333333) internal successors, (859), 3 states have internal predecessors, (859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:24:19,535 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:24:19,535 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 284 of 600 [2023-08-29 03:24:19,536 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:24:19,698 INFO L130 PetriNetUnfolder]: 720/1424 cut-off events. [2023-08-29 03:24:19,698 INFO L131 PetriNetUnfolder]: For 38/38 co-relation queries the response was YES. [2023-08-29 03:24:19,701 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2771 conditions, 1424 events. 720/1424 cut-off events. For 38/38 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 8566 event pairs, 158 based on Foata normal form. 0/1134 useless extension candidates. Maximal degree in co-relation 2765. Up to 771 conditions per place. [2023-08-29 03:24:19,706 INFO L137 encePairwiseOnDemand]: 594/600 looper letters, 56 selfloop transitions, 3 changer transitions 0/83 dead transitions. [2023-08-29 03:24:19,706 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 83 transitions, 338 flow [2023-08-29 03:24:19,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 03:24:19,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 03:24:19,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 912 transitions. [2023-08-29 03:24:19,709 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5066666666666667 [2023-08-29 03:24:19,709 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 912 transitions. [2023-08-29 03:24:19,709 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 912 transitions. [2023-08-29 03:24:19,710 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:24:19,710 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 912 transitions. [2023-08-29 03:24:19,712 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 304.0) internal successors, (912), 3 states have internal predecessors, (912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:24:19,715 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 600.0) internal successors, (2400), 4 states have internal predecessors, (2400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:24:19,716 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 600.0) internal successors, (2400), 4 states have internal predecessors, (2400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:24:19,716 INFO L175 Difference]: Start difference. First operand has 60 places, 64 transitions, 176 flow. Second operand 3 states and 912 transitions. [2023-08-29 03:24:19,716 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 83 transitions, 338 flow [2023-08-29 03:24:19,718 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 83 transitions, 338 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 03:24:19,719 INFO L231 Difference]: Finished difference. Result has 60 places, 64 transitions, 191 flow [2023-08-29 03:24:19,719 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=600, PETRI_DIFFERENCE_MINUEND_FLOW=170, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=191, PETRI_PLACES=60, PETRI_TRANSITIONS=64} [2023-08-29 03:24:19,721 INFO L281 CegarLoopForPetriNet]: 80 programPoint places, -20 predicate places. [2023-08-29 03:24:19,721 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 64 transitions, 191 flow [2023-08-29 03:24:19,723 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 286.3333333333333) internal successors, (859), 3 states have internal predecessors, (859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:24:19,725 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:24:19,725 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:24:19,725 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-29 03:24:19,726 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 48 more)] === [2023-08-29 03:24:19,726 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:24:19,727 INFO L85 PathProgramCache]: Analyzing trace with hash 940647521, now seen corresponding path program 1 times [2023-08-29 03:24:19,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:24:19,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501291695] [2023-08-29 03:24:19,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:24:19,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:24:19,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:24:19,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 03:24:19,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:24:19,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501291695] [2023-08-29 03:24:19,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [501291695] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:24:19,777 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:24:19,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 03:24:19,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853199316] [2023-08-29 03:24:19,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:24:19,778 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 03:24:19,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:24:19,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 03:24:19,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 03:24:19,787 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 287 out of 600 [2023-08-29 03:24:19,788 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 64 transitions, 191 flow. Second operand has 3 states, 3 states have (on average 289.3333333333333) internal successors, (868), 3 states have internal predecessors, (868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:24:19,789 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:24:19,789 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 287 of 600 [2023-08-29 03:24:19,789 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:24:19,963 INFO L130 PetriNetUnfolder]: 798/1443 cut-off events. [2023-08-29 03:24:19,963 INFO L131 PetriNetUnfolder]: For 37/37 co-relation queries the response was YES. [2023-08-29 03:24:19,966 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2953 conditions, 1443 events. 798/1443 cut-off events. For 37/37 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 8220 event pairs, 286 based on Foata normal form. 0/1132 useless extension candidates. Maximal degree in co-relation 2946. Up to 787 conditions per place. [2023-08-29 03:24:19,970 INFO L137 encePairwiseOnDemand]: 596/600 looper letters, 56 selfloop transitions, 2 changer transitions 5/90 dead transitions. [2023-08-29 03:24:19,970 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 90 transitions, 375 flow [2023-08-29 03:24:19,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 03:24:19,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 03:24:19,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 924 transitions. [2023-08-29 03:24:19,973 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5133333333333333 [2023-08-29 03:24:19,973 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 924 transitions. [2023-08-29 03:24:19,973 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 924 transitions. [2023-08-29 03:24:19,974 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:24:19,974 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 924 transitions. [2023-08-29 03:24:19,976 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 308.0) internal successors, (924), 3 states have internal predecessors, (924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:24:19,978 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 600.0) internal successors, (2400), 4 states have internal predecessors, (2400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:24:19,979 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 600.0) internal successors, (2400), 4 states have internal predecessors, (2400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:24:19,979 INFO L175 Difference]: Start difference. First operand has 60 places, 64 transitions, 191 flow. Second operand 3 states and 924 transitions. [2023-08-29 03:24:19,979 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 90 transitions, 375 flow [2023-08-29 03:24:19,980 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 90 transitions, 375 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 03:24:19,981 INFO L231 Difference]: Finished difference. Result has 61 places, 64 transitions, 201 flow [2023-08-29 03:24:19,982 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=600, PETRI_DIFFERENCE_MINUEND_FLOW=187, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=201, PETRI_PLACES=61, PETRI_TRANSITIONS=64} [2023-08-29 03:24:19,982 INFO L281 CegarLoopForPetriNet]: 80 programPoint places, -19 predicate places. [2023-08-29 03:24:19,982 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 64 transitions, 201 flow [2023-08-29 03:24:19,983 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 289.3333333333333) internal successors, (868), 3 states have internal predecessors, (868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:24:19,983 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:24:19,983 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:24:19,983 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-29 03:24:19,983 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 48 more)] === [2023-08-29 03:24:19,983 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:24:19,984 INFO L85 PathProgramCache]: Analyzing trace with hash 2019159844, now seen corresponding path program 1 times [2023-08-29 03:24:19,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:24:19,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138592694] [2023-08-29 03:24:19,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:24:19,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:24:19,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:24:20,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 03:24:20,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:24:20,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138592694] [2023-08-29 03:24:20,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2138592694] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:24:20,008 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:24:20,008 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 03:24:20,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3104547] [2023-08-29 03:24:20,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:24:20,008 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 03:24:20,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:24:20,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 03:24:20,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 03:24:20,017 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 287 out of 600 [2023-08-29 03:24:20,018 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 64 transitions, 201 flow. Second operand has 3 states, 3 states have (on average 289.6666666666667) internal successors, (869), 3 states have internal predecessors, (869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:24:20,018 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:24:20,018 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 287 of 600 [2023-08-29 03:24:20,018 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:24:20,198 INFO L130 PetriNetUnfolder]: 804/1444 cut-off events. [2023-08-29 03:24:20,198 INFO L131 PetriNetUnfolder]: For 69/69 co-relation queries the response was YES. [2023-08-29 03:24:20,201 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3079 conditions, 1444 events. 804/1444 cut-off events. For 69/69 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 8014 event pairs, 296 based on Foata normal form. 0/1149 useless extension candidates. Maximal degree in co-relation 3071. Up to 772 conditions per place. [2023-08-29 03:24:20,202 INFO L137 encePairwiseOnDemand]: 596/600 looper letters, 0 selfloop transitions, 0 changer transitions 90/90 dead transitions. [2023-08-29 03:24:20,203 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 90 transitions, 390 flow [2023-08-29 03:24:20,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 03:24:20,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 03:24:20,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 924 transitions. [2023-08-29 03:24:20,205 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5133333333333333 [2023-08-29 03:24:20,205 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 924 transitions. [2023-08-29 03:24:20,205 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 924 transitions. [2023-08-29 03:24:20,206 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:24:20,206 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 924 transitions. [2023-08-29 03:24:20,208 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 308.0) internal successors, (924), 3 states have internal predecessors, (924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:24:20,210 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 600.0) internal successors, (2400), 4 states have internal predecessors, (2400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:24:20,211 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 600.0) internal successors, (2400), 4 states have internal predecessors, (2400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:24:20,211 INFO L175 Difference]: Start difference. First operand has 61 places, 64 transitions, 201 flow. Second operand 3 states and 924 transitions. [2023-08-29 03:24:20,211 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 90 transitions, 390 flow [2023-08-29 03:24:20,213 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 90 transitions, 390 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 03:24:20,213 INFO L231 Difference]: Finished difference. Result has 61 places, 0 transitions, 0 flow [2023-08-29 03:24:20,213 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=600, PETRI_DIFFERENCE_MINUEND_FLOW=197, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=61, PETRI_TRANSITIONS=0} [2023-08-29 03:24:20,214 INFO L281 CegarLoopForPetriNet]: 80 programPoint places, -19 predicate places. [2023-08-29 03:24:20,214 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 0 transitions, 0 flow [2023-08-29 03:24:20,214 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 289.6666666666667) internal successors, (869), 3 states have internal predecessors, (869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:24:20,217 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (51 of 52 remaining) [2023-08-29 03:24:20,217 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (50 of 52 remaining) [2023-08-29 03:24:20,217 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (49 of 52 remaining) [2023-08-29 03:24:20,217 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (48 of 52 remaining) [2023-08-29 03:24:20,217 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (47 of 52 remaining) [2023-08-29 03:24:20,217 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (46 of 52 remaining) [2023-08-29 03:24:20,218 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (45 of 52 remaining) [2023-08-29 03:24:20,218 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (44 of 52 remaining) [2023-08-29 03:24:20,218 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (43 of 52 remaining) [2023-08-29 03:24:20,218 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (42 of 52 remaining) [2023-08-29 03:24:20,218 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (41 of 52 remaining) [2023-08-29 03:24:20,218 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (40 of 52 remaining) [2023-08-29 03:24:20,218 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (39 of 52 remaining) [2023-08-29 03:24:20,218 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (38 of 52 remaining) [2023-08-29 03:24:20,218 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (37 of 52 remaining) [2023-08-29 03:24:20,219 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (36 of 52 remaining) [2023-08-29 03:24:20,219 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (35 of 52 remaining) [2023-08-29 03:24:20,219 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (34 of 52 remaining) [2023-08-29 03:24:20,219 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (33 of 52 remaining) [2023-08-29 03:24:20,219 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (32 of 52 remaining) [2023-08-29 03:24:20,219 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (31 of 52 remaining) [2023-08-29 03:24:20,219 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (30 of 52 remaining) [2023-08-29 03:24:20,219 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (29 of 52 remaining) [2023-08-29 03:24:20,219 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (28 of 52 remaining) [2023-08-29 03:24:20,220 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (27 of 52 remaining) [2023-08-29 03:24:20,220 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (26 of 52 remaining) [2023-08-29 03:24:20,220 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (25 of 52 remaining) [2023-08-29 03:24:20,220 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (24 of 52 remaining) [2023-08-29 03:24:20,220 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (23 of 52 remaining) [2023-08-29 03:24:20,220 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (22 of 52 remaining) [2023-08-29 03:24:20,220 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (21 of 52 remaining) [2023-08-29 03:24:20,220 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (20 of 52 remaining) [2023-08-29 03:24:20,221 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 52 remaining) [2023-08-29 03:24:20,221 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 52 remaining) [2023-08-29 03:24:20,221 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (17 of 52 remaining) [2023-08-29 03:24:20,221 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (16 of 52 remaining) [2023-08-29 03:24:20,221 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (15 of 52 remaining) [2023-08-29 03:24:20,221 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (14 of 52 remaining) [2023-08-29 03:24:20,221 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (13 of 52 remaining) [2023-08-29 03:24:20,221 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (12 of 52 remaining) [2023-08-29 03:24:20,221 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (11 of 52 remaining) [2023-08-29 03:24:20,222 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (10 of 52 remaining) [2023-08-29 03:24:20,222 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (9 of 52 remaining) [2023-08-29 03:24:20,222 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (8 of 52 remaining) [2023-08-29 03:24:20,222 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (7 of 52 remaining) [2023-08-29 03:24:20,222 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (6 of 52 remaining) [2023-08-29 03:24:20,222 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (5 of 52 remaining) [2023-08-29 03:24:20,222 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (4 of 52 remaining) [2023-08-29 03:24:20,222 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (3 of 52 remaining) [2023-08-29 03:24:20,222 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (2 of 52 remaining) [2023-08-29 03:24:20,223 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (1 of 52 remaining) [2023-08-29 03:24:20,223 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (0 of 52 remaining) [2023-08-29 03:24:20,223 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-29 03:24:20,223 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:24:20,231 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-29 03:24:20,231 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-29 03:24:20,235 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 03:24:20 BasicIcfg [2023-08-29 03:24:20,235 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-29 03:24:20,235 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-29 03:24:20,236 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-29 03:24:20,236 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-29 03:24:20,236 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 03:24:11" (3/4) ... [2023-08-29 03:24:20,238 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-29 03:24:20,243 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2023-08-29 03:24:20,243 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2023-08-29 03:24:20,250 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2023-08-29 03:24:20,250 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-08-29 03:24:20,250 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-29 03:24:20,251 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-29 03:24:20,297 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-29 03:24:20,297 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-29 03:24:20,298 INFO L158 Benchmark]: Toolchain (without parser) took 9681.41ms. Allocated memory was 75.5MB in the beginning and 174.1MB in the end (delta: 98.6MB). Free memory was 53.0MB in the beginning and 87.9MB in the end (delta: -34.8MB). Peak memory consumption was 64.0MB. Max. memory is 16.1GB. [2023-08-29 03:24:20,298 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 54.5MB. Free memory is still 33.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 03:24:20,298 INFO L158 Benchmark]: CACSL2BoogieTranslator took 279.94ms. Allocated memory is still 75.5MB. Free memory was 52.8MB in the beginning and 41.3MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-08-29 03:24:20,298 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.54ms. Allocated memory is still 75.5MB. Free memory was 41.3MB in the beginning and 38.8MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 03:24:20,299 INFO L158 Benchmark]: Boogie Preprocessor took 49.43ms. Allocated memory is still 75.5MB. Free memory was 38.8MB in the beginning and 37.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 03:24:20,299 INFO L158 Benchmark]: RCFGBuilder took 775.98ms. Allocated memory is still 75.5MB. Free memory was 37.1MB in the beginning and 35.0MB in the end (delta: 2.1MB). Peak memory consumption was 8.5MB. Max. memory is 16.1GB. [2023-08-29 03:24:20,299 INFO L158 Benchmark]: TraceAbstraction took 8443.51ms. Allocated memory was 75.5MB in the beginning and 174.1MB in the end (delta: 98.6MB). Free memory was 34.3MB in the beginning and 92.1MB in the end (delta: -57.7MB). Peak memory consumption was 70.2MB. Max. memory is 16.1GB. [2023-08-29 03:24:20,300 INFO L158 Benchmark]: Witness Printer took 61.62ms. Allocated memory is still 174.1MB. Free memory was 92.1MB in the beginning and 87.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-29 03:24:20,302 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 54.5MB. Free memory is still 33.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 279.94ms. Allocated memory is still 75.5MB. Free memory was 52.8MB in the beginning and 41.3MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.54ms. Allocated memory is still 75.5MB. Free memory was 41.3MB in the beginning and 38.8MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 49.43ms. Allocated memory is still 75.5MB. Free memory was 38.8MB in the beginning and 37.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 775.98ms. Allocated memory is still 75.5MB. Free memory was 37.1MB in the beginning and 35.0MB in the end (delta: 2.1MB). Peak memory consumption was 8.5MB. Max. memory is 16.1GB. * TraceAbstraction took 8443.51ms. Allocated memory was 75.5MB in the beginning and 174.1MB in the end (delta: 98.6MB). Free memory was 34.3MB in the beginning and 92.1MB in the end (delta: -57.7MB). Peak memory consumption was 70.2MB. Max. memory is 16.1GB. * Witness Printer took 61.62ms. Allocated memory is still 174.1MB. Free memory was 92.1MB in the beginning and 87.9MB 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: 5.9s, 277 PlacesBefore, 80 PlacesAfterwards, 286 TransitionsBefore, 81 TransitionsAfterwards, 15476 CoEnabledTransitionPairs, 8 FixpointIterations, 132 TrivialSequentialCompositions, 108 ConcurrentSequentialCompositions, 12 TrivialYvCompositions, 34 ConcurrentYvCompositions, 8 ChoiceCompositions, 294 TotalNumberOfCompositions, 54733 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 29437, independent: 28507, independent conditional: 0, independent unconditional: 28507, dependent: 930, dependent conditional: 0, dependent unconditional: 930, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 9187, independent: 9101, independent conditional: 0, independent unconditional: 9101, dependent: 86, dependent conditional: 0, dependent unconditional: 86, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 29437, independent: 19406, independent conditional: 0, independent unconditional: 19406, dependent: 844, dependent conditional: 0, dependent unconditional: 844, unknown: 9187, unknown conditional: 0, unknown unconditional: 9187] , Statistics on independence cache: Total cache size (in pairs): 858, Positive cache size: 809, Positive conditional cache size: 0, Positive unconditional cache size: 809, Negative cache size: 49, Negative conditional cache size: 0, Negative unconditional cache size: 49, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: 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: 60]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 62]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 63]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 68]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 69]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 71]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 71]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 72]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 72]: 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: 73]: 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, 427 locations, 52 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: 8.2s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 6.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 322 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 228 mSDsluCounter, 24 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 57 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 567 IncrementalHoareTripleChecker+Invalid, 624 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 57 mSolverCounterUnsat, 24 mSDtfsCounter, 567 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=201occurred in iteration=7, InterpolantAutomatonStates: 23, 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, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 62 NumberOfCodeBlocks, 62 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 54 ConstructedInterpolants, 0 QuantifiedInterpolants, 68 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 32 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-29 03:24:20,330 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE