./Ultimate.py --spec /storage/repos/ultimate/trunk/examples/svcomp/properties/no-data-race.prp --file /storage/repos/ultimate/trunk/examples/svcomp/weaver/mult-flipped-dist.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version efd9311c 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 /storage/repos/ultimate/trunk/examples/svcomp/weaver/mult-flipped-dist.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 0d10bf8c0e842192a13f4b6638f03cf57668d5bee07d0b49c4b595de1c605066 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-efd9311-m [2022-04-18 16:33:50,609 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-18 16:33:50,611 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-18 16:33:50,644 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-18 16:33:50,644 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-18 16:33:50,646 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-18 16:33:50,646 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-18 16:33:50,649 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-18 16:33:50,650 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-18 16:33:50,654 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-18 16:33:50,655 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-18 16:33:50,657 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-18 16:33:50,657 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-18 16:33:50,658 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-18 16:33:50,659 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-18 16:33:50,662 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-18 16:33:50,663 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-18 16:33:50,664 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-18 16:33:50,665 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-18 16:33:50,670 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-18 16:33:50,672 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-18 16:33:50,673 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-18 16:33:50,674 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-18 16:33:50,674 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-18 16:33:50,676 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-18 16:33:50,684 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-18 16:33:50,684 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-18 16:33:50,685 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-18 16:33:50,686 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-18 16:33:50,686 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-18 16:33:50,687 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-04-18 16:33:50,687 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-18 16:33:50,688 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-18 16:33:50,689 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-18 16:33:50,689 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-18 16:33:50,690 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-18 16:33:50,690 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-18 16:33:50,690 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-18 16:33:50,691 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-18 16:33:50,691 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-18 16:33:50,691 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-18 16:33:50,693 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-18 16:33:50,694 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-04-18 16:33:50,718 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-18 16:33:50,718 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-18 16:33:50,718 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-04-18 16:33:50,718 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-04-18 16:33:50,719 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-18 16:33:50,719 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-18 16:33:50,720 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-04-18 16:33:50,720 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-04-18 16:33:50,720 INFO L138 SettingsManager]: * Use SBE=true [2022-04-18 16:33:50,720 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-18 16:33:50,721 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-18 16:33:50,721 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-04-18 16:33:50,721 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-18 16:33:50,721 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-18 16:33:50,721 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-18 16:33:50,721 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-18 16:33:50,721 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-18 16:33:50,722 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-18 16:33:50,722 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-04-18 16:33:50,722 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-18 16:33:50,722 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-18 16:33:50,722 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-18 16:33:50,722 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-18 16:33:50,723 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-18 16:33:50,723 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-18 16:33:50,724 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-18 16:33:50,724 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 16:33:50,724 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-18 16:33:50,724 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-18 16:33:50,724 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-18 16:33:50,724 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-18 16:33:50,725 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-18 16:33:50,725 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-04-18 16:33:50,725 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-04-18 16:33:50,725 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-18 16:33:50,725 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0d10bf8c0e842192a13f4b6638f03cf57668d5bee07d0b49c4b595de1c605066 [2022-04-18 16:33:50,912 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-18 16:33:50,927 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-18 16:33:50,929 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-18 16:33:50,929 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-18 16:33:50,930 INFO L275 PluginConnector]: CDTParser initialized [2022-04-18 16:33:50,931 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/trunk/examples/svcomp/weaver/mult-flipped-dist.wvr.c [2022-04-18 16:33:50,973 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7b89598f6/16c102f1c83243c393311598300b1dc6/FLAGf7e3c04ce [2022-04-18 16:33:51,273 INFO L306 CDTParser]: Found 1 translation units. [2022-04-18 16:33:51,274 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/mult-flipped-dist.wvr.c [2022-04-18 16:33:51,279 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7b89598f6/16c102f1c83243c393311598300b1dc6/FLAGf7e3c04ce [2022-04-18 16:33:51,712 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7b89598f6/16c102f1c83243c393311598300b1dc6 [2022-04-18 16:33:51,713 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-18 16:33:51,714 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-04-18 16:33:51,715 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-18 16:33:51,716 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-18 16:33:51,718 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-18 16:33:51,718 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 04:33:51" (1/1) ... [2022-04-18 16:33:51,719 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24c51726 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:33:51, skipping insertion in model container [2022-04-18 16:33:51,719 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 04:33:51" (1/1) ... [2022-04-18 16:33:51,724 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-18 16:33:51,737 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-18 16:33:51,887 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/mult-flipped-dist.wvr.c[2135,2148] [2022-04-18 16:33:51,891 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 16:33:51,896 INFO L203 MainTranslator]: Completed pre-run [2022-04-18 16:33:51,928 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/mult-flipped-dist.wvr.c[2135,2148] [2022-04-18 16:33:51,935 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 16:33:51,948 INFO L208 MainTranslator]: Completed translation [2022-04-18 16:33:51,948 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:33:51 WrapperNode [2022-04-18 16:33:51,949 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-18 16:33:51,949 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-04-18 16:33:51,949 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-04-18 16:33:51,950 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-04-18 16:33:51,954 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:33:51" (1/1) ... [2022-04-18 16:33:51,967 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:33:51" (1/1) ... [2022-04-18 16:33:51,983 INFO L137 Inliner]: procedures = 22, calls = 25, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 103 [2022-04-18 16:33:51,984 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-04-18 16:33:51,984 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-18 16:33:51,984 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-18 16:33:51,984 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-18 16:33:51,990 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:33:51" (1/1) ... [2022-04-18 16:33:51,990 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:33:51" (1/1) ... [2022-04-18 16:33:51,992 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:33:51" (1/1) ... [2022-04-18 16:33:51,993 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:33:51" (1/1) ... [2022-04-18 16:33:52,001 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:33:51" (1/1) ... [2022-04-18 16:33:52,003 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:33:51" (1/1) ... [2022-04-18 16:33:52,004 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:33:51" (1/1) ... [2022-04-18 16:33:52,005 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-18 16:33:52,006 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-18 16:33:52,006 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-18 16:33:52,006 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-18 16:33:52,011 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:33:51" (1/1) ... [2022-04-18 16:33:52,016 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 16:33:52,022 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-18 16:33:52,030 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) [2022-04-18 16:33:52,034 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 [2022-04-18 16:33:52,054 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-18 16:33:52,054 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-04-18 16:33:52,054 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-04-18 16:33:52,054 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-04-18 16:33:52,055 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-04-18 16:33:52,055 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-04-18 16:33:52,055 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-04-18 16:33:52,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-18 16:33:52,055 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-04-18 16:33:52,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-18 16:33:52,055 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-18 16:33:52,055 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-18 16:33:52,056 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-18 16:33:52,056 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-18 16:33:52,057 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-04-18 16:33:52,136 INFO L234 CfgBuilder]: Building ICFG [2022-04-18 16:33:52,138 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-18 16:33:52,391 INFO L275 CfgBuilder]: Performing block encoding [2022-04-18 16:33:52,398 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-18 16:33:52,400 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-04-18 16:33:52,401 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 04:33:52 BoogieIcfgContainer [2022-04-18 16:33:52,402 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-18 16:33:52,403 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-18 16:33:52,404 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-18 16:33:52,407 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-18 16:33:52,407 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 04:33:51" (1/3) ... [2022-04-18 16:33:52,407 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49d6e4f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 04:33:52, skipping insertion in model container [2022-04-18 16:33:52,408 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:33:51" (2/3) ... [2022-04-18 16:33:52,408 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49d6e4f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 04:33:52, skipping insertion in model container [2022-04-18 16:33:52,408 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 04:33:52" (3/3) ... [2022-04-18 16:33:52,409 INFO L111 eAbstractionObserver]: Analyzing ICFG mult-flipped-dist.wvr.c [2022-04-18 16:33:52,413 WARN L147 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-04-18 16:33:52,413 INFO L202 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-18 16:33:52,413 INFO L161 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2022-04-18 16:33:52,413 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-04-18 16:33:52,478 INFO L135 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-04-18 16:33:52,532 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-18 16:33:52,537 INFO L340 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 [2022-04-18 16:33:52,542 INFO L341 AbstractCegarLoop]: Starting to check reachability of 38 error locations. [2022-04-18 16:33:52,561 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 196 places, 193 transitions, 410 flow [2022-04-18 16:33:52,633 INFO L129 PetriNetUnfolder]: 7/190 cut-off events. [2022-04-18 16:33:52,633 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-04-18 16:33:52,639 INFO L84 FinitePrefix]: Finished finitePrefix Result has 203 conditions, 190 events. 7/190 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 266 event pairs, 0 based on Foata normal form. 0/161 useless extension candidates. Maximal degree in co-relation 109. Up to 2 conditions per place. [2022-04-18 16:33:52,640 INFO L82 GeneralOperation]: Start removeDead. Operand has 196 places, 193 transitions, 410 flow [2022-04-18 16:33:52,647 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 174 places, 170 transitions, 358 flow [2022-04-18 16:33:52,656 INFO L129 PetriNetUnfolder]: 0/25 cut-off events. [2022-04-18 16:33:52,656 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-04-18 16:33:52,656 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:33:52,657 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:33:52,657 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-04-18 16:33:52,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:33:52,663 INFO L85 PathProgramCache]: Analyzing trace with hash 2019018468, now seen corresponding path program 1 times [2022-04-18 16:33:52,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:33:52,671 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907572239] [2022-04-18 16:33:52,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:33:52,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:33:52,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:33:52,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:33:52,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:33:52,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907572239] [2022-04-18 16:33:52,831 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1907572239] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:33:52,831 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:33:52,832 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:33:52,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937595596] [2022-04-18 16:33:52,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:33:52,839 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:33:52,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:33:52,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:33:52,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:33:52,868 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 170 out of 193 [2022-04-18 16:33:52,873 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 174 places, 170 transitions, 358 flow. Second operand has 3 states, 3 states have (on average 171.33333333333334) internal successors, (514), 3 states have internal predecessors, (514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:52,873 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:33:52,874 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 170 of 193 [2022-04-18 16:33:52,874 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:33:52,996 INFO L129 PetriNetUnfolder]: 40/427 cut-off events. [2022-04-18 16:33:52,996 INFO L130 PetriNetUnfolder]: For 52/53 co-relation queries the response was YES. [2022-04-18 16:33:53,002 INFO L84 FinitePrefix]: Finished finitePrefix Result has 537 conditions, 427 events. 40/427 cut-off events. For 52/53 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1889 event pairs, 21 based on Foata normal form. 41/381 useless extension candidates. Maximal degree in co-relation 352. Up to 72 conditions per place. [2022-04-18 16:33:53,006 INFO L132 encePairwiseOnDemand]: 187/193 looper letters, 15 selfloop transitions, 2 changer transitions 0/166 dead transitions. [2022-04-18 16:33:53,006 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 166 transitions, 384 flow [2022-04-18 16:33:53,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:33:53,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:33:53,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 531 transitions. [2022-04-18 16:33:53,025 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.917098445595855 [2022-04-18 16:33:53,026 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 531 transitions. [2022-04-18 16:33:53,026 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 531 transitions. [2022-04-18 16:33:53,029 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:33:53,031 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 531 transitions. [2022-04-18 16:33:53,035 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 177.0) internal successors, (531), 3 states have internal predecessors, (531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:53,043 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:53,044 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:53,046 INFO L186 Difference]: Start difference. First operand has 174 places, 170 transitions, 358 flow. Second operand 3 states and 531 transitions. [2022-04-18 16:33:53,046 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 166 transitions, 384 flow [2022-04-18 16:33:53,050 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 169 places, 166 transitions, 372 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-04-18 16:33:53,053 INFO L242 Difference]: Finished difference. Result has 169 places, 166 transitions, 342 flow [2022-04-18 16:33:53,055 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=338, PETRI_DIFFERENCE_MINUEND_PLACES=167, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=166, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=164, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=342, PETRI_PLACES=169, PETRI_TRANSITIONS=166} [2022-04-18 16:33:53,058 INFO L335 CegarLoopForPetriNet]: 174 programPoint places, -5 predicate places. [2022-04-18 16:33:53,059 INFO L478 AbstractCegarLoop]: Abstraction has has 169 places, 166 transitions, 342 flow [2022-04-18 16:33:53,059 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 171.33333333333334) internal successors, (514), 3 states have internal predecessors, (514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:53,059 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:33:53,060 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:33:53,060 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-18 16:33:53,060 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-04-18 16:33:53,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:33:53,061 INFO L85 PathProgramCache]: Analyzing trace with hash -806936975, now seen corresponding path program 1 times [2022-04-18 16:33:53,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:33:53,061 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101295400] [2022-04-18 16:33:53,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:33:53,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:33:53,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:33:53,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:33:53,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:33:53,124 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101295400] [2022-04-18 16:33:53,124 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2101295400] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:33:53,125 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:33:53,126 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:33:53,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952866461] [2022-04-18 16:33:53,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:33:53,128 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:33:53,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:33:53,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:33:53,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:33:53,130 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 170 out of 193 [2022-04-18 16:33:53,131 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 169 places, 166 transitions, 342 flow. Second operand has 3 states, 3 states have (on average 171.33333333333334) internal successors, (514), 3 states have internal predecessors, (514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:53,135 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:33:53,135 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 170 of 193 [2022-04-18 16:33:53,135 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:33:53,205 INFO L129 PetriNetUnfolder]: 63/505 cut-off events. [2022-04-18 16:33:53,206 INFO L130 PetriNetUnfolder]: For 26/26 co-relation queries the response was YES. [2022-04-18 16:33:53,210 INFO L84 FinitePrefix]: Finished finitePrefix Result has 622 conditions, 505 events. 63/505 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 2474 event pairs, 39 based on Foata normal form. 0/400 useless extension candidates. Maximal degree in co-relation 589. Up to 105 conditions per place. [2022-04-18 16:33:53,213 INFO L132 encePairwiseOnDemand]: 190/193 looper letters, 15 selfloop transitions, 2 changer transitions 0/165 dead transitions. [2022-04-18 16:33:53,214 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 165 transitions, 374 flow [2022-04-18 16:33:53,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:33:53,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:33:53,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 528 transitions. [2022-04-18 16:33:53,215 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9119170984455959 [2022-04-18 16:33:53,215 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 528 transitions. [2022-04-18 16:33:53,216 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 528 transitions. [2022-04-18 16:33:53,216 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:33:53,216 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 528 transitions. [2022-04-18 16:33:53,217 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 176.0) internal successors, (528), 3 states have internal predecessors, (528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:53,219 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:53,219 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:53,219 INFO L186 Difference]: Start difference. First operand has 169 places, 166 transitions, 342 flow. Second operand 3 states and 528 transitions. [2022-04-18 16:33:53,219 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 170 places, 165 transitions, 374 flow [2022-04-18 16:33:53,222 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 168 places, 165 transitions, 370 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:33:53,225 INFO L242 Difference]: Finished difference. Result has 168 places, 165 transitions, 340 flow [2022-04-18 16:33:53,226 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=336, PETRI_DIFFERENCE_MINUEND_PLACES=166, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=165, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=163, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=340, PETRI_PLACES=168, PETRI_TRANSITIONS=165} [2022-04-18 16:33:53,227 INFO L335 CegarLoopForPetriNet]: 174 programPoint places, -6 predicate places. [2022-04-18 16:33:53,227 INFO L478 AbstractCegarLoop]: Abstraction has has 168 places, 165 transitions, 340 flow [2022-04-18 16:33:53,227 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 171.33333333333334) internal successors, (514), 3 states have internal predecessors, (514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:53,227 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:33:53,228 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:33:53,228 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-18 16:33:53,228 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-04-18 16:33:53,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:33:53,228 INFO L85 PathProgramCache]: Analyzing trace with hash 1235032587, now seen corresponding path program 1 times [2022-04-18 16:33:53,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:33:53,229 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64318527] [2022-04-18 16:33:53,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:33:53,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:33:53,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:33:53,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:33:53,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:33:53,280 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64318527] [2022-04-18 16:33:53,280 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [64318527] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:33:53,280 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:33:53,280 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:33:53,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132772797] [2022-04-18 16:33:53,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:33:53,281 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:33:53,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:33:53,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:33:53,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:33:53,283 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 193 [2022-04-18 16:33:53,284 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 165 transitions, 340 flow. Second operand has 3 states, 3 states have (on average 168.33333333333334) internal successors, (505), 3 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:53,284 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:33:53,284 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 193 [2022-04-18 16:33:53,284 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:33:53,431 INFO L129 PetriNetUnfolder]: 201/1231 cut-off events. [2022-04-18 16:33:53,431 INFO L130 PetriNetUnfolder]: For 21/135 co-relation queries the response was YES. [2022-04-18 16:33:53,437 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1565 conditions, 1231 events. 201/1231 cut-off events. For 21/135 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 9340 event pairs, 135 based on Foata normal form. 0/924 useless extension candidates. Maximal degree in co-relation 1526. Up to 307 conditions per place. [2022-04-18 16:33:53,445 INFO L132 encePairwiseOnDemand]: 190/193 looper letters, 18 selfloop transitions, 2 changer transitions 0/164 dead transitions. [2022-04-18 16:33:53,446 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 164 transitions, 378 flow [2022-04-18 16:33:53,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:33:53,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:33:53,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 522 transitions. [2022-04-18 16:33:53,447 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9015544041450777 [2022-04-18 16:33:53,448 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 522 transitions. [2022-04-18 16:33:53,448 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 522 transitions. [2022-04-18 16:33:53,449 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:33:53,449 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 522 transitions. [2022-04-18 16:33:53,450 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 174.0) internal successors, (522), 3 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:53,451 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:53,451 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:53,451 INFO L186 Difference]: Start difference. First operand has 168 places, 165 transitions, 340 flow. Second operand 3 states and 522 transitions. [2022-04-18 16:33:53,451 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 164 transitions, 378 flow [2022-04-18 16:33:53,453 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 167 places, 164 transitions, 374 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:33:53,456 INFO L242 Difference]: Finished difference. Result has 167 places, 164 transitions, 338 flow [2022-04-18 16:33:53,456 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=334, PETRI_DIFFERENCE_MINUEND_PLACES=165, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=164, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=162, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=338, PETRI_PLACES=167, PETRI_TRANSITIONS=164} [2022-04-18 16:33:53,458 INFO L335 CegarLoopForPetriNet]: 174 programPoint places, -7 predicate places. [2022-04-18 16:33:53,458 INFO L478 AbstractCegarLoop]: Abstraction has has 167 places, 164 transitions, 338 flow [2022-04-18 16:33:53,458 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 168.33333333333334) internal successors, (505), 3 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:53,458 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:33:53,459 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:33:53,459 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-04-18 16:33:53,459 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-04-18 16:33:53,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:33:53,459 INFO L85 PathProgramCache]: Analyzing trace with hash 463162194, now seen corresponding path program 1 times [2022-04-18 16:33:53,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:33:53,460 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069893325] [2022-04-18 16:33:53,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:33:53,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:33:53,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:33:53,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:33:53,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:33:53,512 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069893325] [2022-04-18 16:33:53,513 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1069893325] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:33:53,513 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:33:53,513 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:33:53,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284040502] [2022-04-18 16:33:53,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:33:53,514 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:33:53,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:33:53,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:33:53,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:33:53,518 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 170 out of 193 [2022-04-18 16:33:53,518 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 164 transitions, 338 flow. Second operand has 3 states, 3 states have (on average 171.66666666666666) internal successors, (515), 3 states have internal predecessors, (515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:53,519 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:33:53,519 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 170 of 193 [2022-04-18 16:33:53,519 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:33:53,597 INFO L129 PetriNetUnfolder]: 97/714 cut-off events. [2022-04-18 16:33:53,598 INFO L130 PetriNetUnfolder]: For 14/40 co-relation queries the response was YES. [2022-04-18 16:33:53,600 INFO L84 FinitePrefix]: Finished finitePrefix Result has 883 conditions, 714 events. 97/714 cut-off events. For 14/40 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 4278 event pairs, 34 based on Foata normal form. 1/571 useless extension candidates. Maximal degree in co-relation 837. Up to 146 conditions per place. [2022-04-18 16:33:53,603 INFO L132 encePairwiseOnDemand]: 187/193 looper letters, 16 selfloop transitions, 3 changer transitions 0/166 dead transitions. [2022-04-18 16:33:53,603 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 166 places, 166 transitions, 382 flow [2022-04-18 16:33:53,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:33:53,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:33:53,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 532 transitions. [2022-04-18 16:33:53,605 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.918825561312608 [2022-04-18 16:33:53,605 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 532 transitions. [2022-04-18 16:33:53,606 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 532 transitions. [2022-04-18 16:33:53,608 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:33:53,608 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 532 transitions. [2022-04-18 16:33:53,609 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 177.33333333333334) internal successors, (532), 3 states have internal predecessors, (532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:53,610 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:53,611 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:53,611 INFO L186 Difference]: Start difference. First operand has 167 places, 164 transitions, 338 flow. Second operand 3 states and 532 transitions. [2022-04-18 16:33:53,611 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 166 places, 166 transitions, 382 flow [2022-04-18 16:33:53,612 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 164 places, 166 transitions, 378 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:33:53,614 INFO L242 Difference]: Finished difference. Result has 165 places, 164 transitions, 349 flow [2022-04-18 16:33:53,615 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=328, PETRI_DIFFERENCE_MINUEND_PLACES=162, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=161, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=158, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=349, PETRI_PLACES=165, PETRI_TRANSITIONS=164} [2022-04-18 16:33:53,616 INFO L335 CegarLoopForPetriNet]: 174 programPoint places, -9 predicate places. [2022-04-18 16:33:53,616 INFO L478 AbstractCegarLoop]: Abstraction has has 165 places, 164 transitions, 349 flow [2022-04-18 16:33:53,616 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 171.66666666666666) internal successors, (515), 3 states have internal predecessors, (515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:53,616 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:33:53,617 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:33:53,617 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-04-18 16:33:53,617 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-04-18 16:33:53,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:33:53,618 INFO L85 PathProgramCache]: Analyzing trace with hash -1664553678, now seen corresponding path program 1 times [2022-04-18 16:33:53,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:33:53,618 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295668634] [2022-04-18 16:33:53,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:33:53,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:33:53,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:33:53,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:33:53,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:33:53,679 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295668634] [2022-04-18 16:33:53,679 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [295668634] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:33:53,679 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:33:53,679 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:33:53,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718032331] [2022-04-18 16:33:53,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:33:53,680 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:33:53,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:33:53,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:33:53,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:33:53,682 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 173 out of 193 [2022-04-18 16:33:53,682 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 164 transitions, 349 flow. Second operand has 3 states, 3 states have (on average 174.0) internal successors, (522), 3 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:53,682 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:33:53,682 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 173 of 193 [2022-04-18 16:33:53,682 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:33:53,741 INFO L129 PetriNetUnfolder]: 38/408 cut-off events. [2022-04-18 16:33:53,742 INFO L130 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-04-18 16:33:53,744 INFO L84 FinitePrefix]: Finished finitePrefix Result has 500 conditions, 408 events. 38/408 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1895 event pairs, 7 based on Foata normal form. 0/344 useless extension candidates. Maximal degree in co-relation 361. Up to 36 conditions per place. [2022-04-18 16:33:53,746 INFO L132 encePairwiseOnDemand]: 188/193 looper letters, 12 selfloop transitions, 3 changer transitions 0/164 dead transitions. [2022-04-18 16:33:53,747 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 165 places, 164 transitions, 381 flow [2022-04-18 16:33:53,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:33:53,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:33:53,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 536 transitions. [2022-04-18 16:33:53,748 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.92573402417962 [2022-04-18 16:33:53,748 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 536 transitions. [2022-04-18 16:33:53,748 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 536 transitions. [2022-04-18 16:33:53,749 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:33:53,749 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 536 transitions. [2022-04-18 16:33:53,750 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 178.66666666666666) internal successors, (536), 3 states have internal predecessors, (536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:53,751 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:53,751 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:53,751 INFO L186 Difference]: Start difference. First operand has 165 places, 164 transitions, 349 flow. Second operand 3 states and 536 transitions. [2022-04-18 16:33:53,751 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 165 places, 164 transitions, 381 flow [2022-04-18 16:33:53,753 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 165 places, 164 transitions, 381 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-04-18 16:33:53,755 INFO L242 Difference]: Finished difference. Result has 165 places, 162 transitions, 351 flow [2022-04-18 16:33:53,755 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=345, PETRI_DIFFERENCE_MINUEND_PLACES=163, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=162, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=159, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=351, PETRI_PLACES=165, PETRI_TRANSITIONS=162} [2022-04-18 16:33:53,757 INFO L335 CegarLoopForPetriNet]: 174 programPoint places, -9 predicate places. [2022-04-18 16:33:53,757 INFO L478 AbstractCegarLoop]: Abstraction has has 165 places, 162 transitions, 351 flow [2022-04-18 16:33:53,757 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 174.0) internal successors, (522), 3 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:53,757 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:33:53,758 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:33:53,758 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-04-18 16:33:53,758 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-04-18 16:33:53,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:33:53,759 INFO L85 PathProgramCache]: Analyzing trace with hash -1908235884, now seen corresponding path program 1 times [2022-04-18 16:33:53,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:33:53,759 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496021965] [2022-04-18 16:33:53,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:33:53,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:33:53,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:33:53,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:33:53,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:33:53,811 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496021965] [2022-04-18 16:33:53,811 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1496021965] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:33:53,812 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:33:53,812 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:33:53,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26250243] [2022-04-18 16:33:53,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:33:53,812 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:33:53,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:33:53,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:33:53,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:33:53,815 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 173 out of 193 [2022-04-18 16:33:53,815 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 162 transitions, 351 flow. Second operand has 3 states, 3 states have (on average 174.66666666666666) internal successors, (524), 3 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:53,815 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:33:53,815 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 173 of 193 [2022-04-18 16:33:53,816 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:33:53,890 INFO L129 PetriNetUnfolder]: 67/700 cut-off events. [2022-04-18 16:33:53,890 INFO L130 PetriNetUnfolder]: For 17/23 co-relation queries the response was YES. [2022-04-18 16:33:53,893 INFO L84 FinitePrefix]: Finished finitePrefix Result has 854 conditions, 700 events. 67/700 cut-off events. For 17/23 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 3974 event pairs, 17 based on Foata normal form. 2/593 useless extension candidates. Maximal degree in co-relation 673. Up to 60 conditions per place. [2022-04-18 16:33:53,895 INFO L132 encePairwiseOnDemand]: 189/193 looper letters, 17 selfloop transitions, 2 changer transitions 0/167 dead transitions. [2022-04-18 16:33:53,895 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 165 places, 167 transitions, 404 flow [2022-04-18 16:33:53,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:33:53,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:33:53,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 540 transitions. [2022-04-18 16:33:53,897 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9326424870466321 [2022-04-18 16:33:53,897 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 540 transitions. [2022-04-18 16:33:53,897 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 540 transitions. [2022-04-18 16:33:53,897 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:33:53,897 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 540 transitions. [2022-04-18 16:33:53,898 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 180.0) internal successors, (540), 3 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:53,899 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:53,900 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:53,900 INFO L186 Difference]: Start difference. First operand has 165 places, 162 transitions, 351 flow. Second operand 3 states and 540 transitions. [2022-04-18 16:33:53,900 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 165 places, 167 transitions, 404 flow [2022-04-18 16:33:53,901 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 163 places, 167 transitions, 398 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:33:53,903 INFO L242 Difference]: Finished difference. Result has 164 places, 162 transitions, 355 flow [2022-04-18 16:33:53,903 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=341, PETRI_DIFFERENCE_MINUEND_PLACES=161, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=160, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=158, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=355, PETRI_PLACES=164, PETRI_TRANSITIONS=162} [2022-04-18 16:33:53,905 INFO L335 CegarLoopForPetriNet]: 174 programPoint places, -10 predicate places. [2022-04-18 16:33:53,905 INFO L478 AbstractCegarLoop]: Abstraction has has 164 places, 162 transitions, 355 flow [2022-04-18 16:33:53,906 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 174.66666666666666) internal successors, (524), 3 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:53,906 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:33:53,906 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:33:53,906 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-04-18 16:33:53,907 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-04-18 16:33:53,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:33:53,907 INFO L85 PathProgramCache]: Analyzing trace with hash -105588786, now seen corresponding path program 1 times [2022-04-18 16:33:53,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:33:53,908 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301624219] [2022-04-18 16:33:53,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:33:53,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:33:53,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:33:53,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:33:53,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:33:53,955 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301624219] [2022-04-18 16:33:53,955 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1301624219] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:33:53,956 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:33:53,956 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:33:53,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677210234] [2022-04-18 16:33:53,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:33:53,960 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:33:53,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:33:53,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:33:53,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:33:53,961 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 173 out of 193 [2022-04-18 16:33:53,962 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 164 places, 162 transitions, 355 flow. Second operand has 3 states, 3 states have (on average 174.33333333333334) internal successors, (523), 3 states have internal predecessors, (523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:53,962 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:33:53,962 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 173 of 193 [2022-04-18 16:33:53,962 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:33:54,022 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([462] L58-7-->L58-1: Formula: (= |v_#race~c~0_7| 0) InVars {} OutVars{#race~c~0=|v_#race~c~0_7|} AuxVars[] AssignedVars[#race~c~0][88], [Black: 220#true, 225#true, 113#L58-1true, 162#L75-4true, 77#L50-1true, Black: 211#true, 80#L42-1true, 213#(= |#race~c~0| 0), 222#(= |#race~a~0| 0)]) [2022-04-18 16:33:54,023 INFO L384 tUnfolder$Statistics]: this new event has 93 ancestors and is cut-off event [2022-04-18 16:33:54,023 INFO L387 tUnfolder$Statistics]: existing Event has 91 ancestors and is cut-off event [2022-04-18 16:33:54,023 INFO L387 tUnfolder$Statistics]: existing Event has 76 ancestors and is cut-off event [2022-04-18 16:33:54,023 INFO L387 tUnfolder$Statistics]: existing Event has 78 ancestors and is cut-off event [2022-04-18 16:33:54,041 INFO L129 PetriNetUnfolder]: 82/692 cut-off events. [2022-04-18 16:33:54,042 INFO L130 PetriNetUnfolder]: For 25/39 co-relation queries the response was YES. [2022-04-18 16:33:54,046 INFO L84 FinitePrefix]: Finished finitePrefix Result has 912 conditions, 692 events. 82/692 cut-off events. For 25/39 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 4003 event pairs, 28 based on Foata normal form. 2/598 useless extension candidates. Maximal degree in co-relation 674. Up to 71 conditions per place. [2022-04-18 16:33:54,049 INFO L132 encePairwiseOnDemand]: 188/193 looper letters, 12 selfloop transitions, 3 changer transitions 0/162 dead transitions. [2022-04-18 16:33:54,050 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 162 transitions, 387 flow [2022-04-18 16:33:54,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:33:54,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:33:54,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 536 transitions. [2022-04-18 16:33:54,052 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.92573402417962 [2022-04-18 16:33:54,052 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 536 transitions. [2022-04-18 16:33:54,052 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 536 transitions. [2022-04-18 16:33:54,052 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:33:54,052 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 536 transitions. [2022-04-18 16:33:54,053 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 178.66666666666666) internal successors, (536), 3 states have internal predecessors, (536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:54,054 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:54,054 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:54,054 INFO L186 Difference]: Start difference. First operand has 164 places, 162 transitions, 355 flow. Second operand 3 states and 536 transitions. [2022-04-18 16:33:54,055 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 164 places, 162 transitions, 387 flow [2022-04-18 16:33:54,056 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 164 places, 162 transitions, 387 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-04-18 16:33:54,057 INFO L242 Difference]: Finished difference. Result has 164 places, 160 transitions, 357 flow [2022-04-18 16:33:54,058 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=351, PETRI_DIFFERENCE_MINUEND_PLACES=162, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=160, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=157, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=357, PETRI_PLACES=164, PETRI_TRANSITIONS=160} [2022-04-18 16:33:54,058 INFO L335 CegarLoopForPetriNet]: 174 programPoint places, -10 predicate places. [2022-04-18 16:33:54,058 INFO L478 AbstractCegarLoop]: Abstraction has has 164 places, 160 transitions, 357 flow [2022-04-18 16:33:54,059 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 174.33333333333334) internal successors, (523), 3 states have internal predecessors, (523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:54,059 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:33:54,059 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:33:54,059 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-04-18 16:33:54,059 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-04-18 16:33:54,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:33:54,060 INFO L85 PathProgramCache]: Analyzing trace with hash -2096701929, now seen corresponding path program 1 times [2022-04-18 16:33:54,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:33:54,060 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670535513] [2022-04-18 16:33:54,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:33:54,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:33:54,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:33:54,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:33:54,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:33:54,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670535513] [2022-04-18 16:33:54,104 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [670535513] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:33:54,104 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:33:54,104 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:33:54,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014346085] [2022-04-18 16:33:54,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:33:54,105 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:33:54,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:33:54,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:33:54,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:33:54,106 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 193 [2022-04-18 16:33:54,107 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 164 places, 160 transitions, 357 flow. Second operand has 3 states, 3 states have (on average 173.0) internal successors, (519), 3 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:54,107 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:33:54,107 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 193 [2022-04-18 16:33:54,107 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:33:54,175 INFO L129 PetriNetUnfolder]: 52/526 cut-off events. [2022-04-18 16:33:54,175 INFO L130 PetriNetUnfolder]: For 7/9 co-relation queries the response was YES. [2022-04-18 16:33:54,179 INFO L84 FinitePrefix]: Finished finitePrefix Result has 696 conditions, 526 events. 52/526 cut-off events. For 7/9 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 2618 event pairs, 20 based on Foata normal form. 0/460 useless extension candidates. Maximal degree in co-relation 535. Up to 47 conditions per place. [2022-04-18 16:33:54,187 INFO L132 encePairwiseOnDemand]: 190/193 looper letters, 14 selfloop transitions, 2 changer transitions 0/161 dead transitions. [2022-04-18 16:33:54,187 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 165 places, 161 transitions, 393 flow [2022-04-18 16:33:54,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:33:54,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:33:54,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 530 transitions. [2022-04-18 16:33:54,189 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9153713298791019 [2022-04-18 16:33:54,189 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 530 transitions. [2022-04-18 16:33:54,189 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 530 transitions. [2022-04-18 16:33:54,189 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:33:54,189 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 530 transitions. [2022-04-18 16:33:54,190 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 176.66666666666666) internal successors, (530), 3 states have internal predecessors, (530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:54,191 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:54,191 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:54,191 INFO L186 Difference]: Start difference. First operand has 164 places, 160 transitions, 357 flow. Second operand 3 states and 530 transitions. [2022-04-18 16:33:54,191 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 165 places, 161 transitions, 393 flow [2022-04-18 16:33:54,193 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 163 places, 161 transitions, 387 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:33:54,195 INFO L242 Difference]: Finished difference. Result has 163 places, 159 transitions, 353 flow [2022-04-18 16:33:54,195 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=349, PETRI_DIFFERENCE_MINUEND_PLACES=161, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=159, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=157, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=353, PETRI_PLACES=163, PETRI_TRANSITIONS=159} [2022-04-18 16:33:54,195 INFO L335 CegarLoopForPetriNet]: 174 programPoint places, -11 predicate places. [2022-04-18 16:33:54,196 INFO L478 AbstractCegarLoop]: Abstraction has has 163 places, 159 transitions, 353 flow [2022-04-18 16:33:54,196 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 173.0) internal successors, (519), 3 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:54,196 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:33:54,196 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:33:54,196 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-04-18 16:33:54,197 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-04-18 16:33:54,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:33:54,197 INFO L85 PathProgramCache]: Analyzing trace with hash 1608407088, now seen corresponding path program 1 times [2022-04-18 16:33:54,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:33:54,197 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961721595] [2022-04-18 16:33:54,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:33:54,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:33:54,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:33:54,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:33:54,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:33:54,218 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961721595] [2022-04-18 16:33:54,218 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1961721595] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:33:54,218 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:33:54,219 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:33:54,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110656879] [2022-04-18 16:33:54,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:33:54,219 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:33:54,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:33:54,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:33:54,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:33:54,220 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 173 out of 193 [2022-04-18 16:33:54,221 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 163 places, 159 transitions, 353 flow. Second operand has 3 states, 3 states have (on average 175.0) internal successors, (525), 3 states have internal predecessors, (525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:54,221 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:33:54,221 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 173 of 193 [2022-04-18 16:33:54,221 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:33:54,284 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([462] L58-7-->L58-1: Formula: (= |v_#race~c~0_7| 0) InVars {} OutVars{#race~c~0=|v_#race~c~0_7|} AuxVars[] AssignedVars[#race~c~0][86], [Black: 220#true, 113#L58-1true, 235#(= |#race~b~0| 0), 162#L75-4true, Black: 211#true, 229#true, 77#L50-1true, 80#L42-1true, 213#(= |#race~c~0| 0), 222#(= |#race~a~0| 0)]) [2022-04-18 16:33:54,285 INFO L384 tUnfolder$Statistics]: this new event has 93 ancestors and is cut-off event [2022-04-18 16:33:54,285 INFO L387 tUnfolder$Statistics]: existing Event has 78 ancestors and is cut-off event [2022-04-18 16:33:54,285 INFO L387 tUnfolder$Statistics]: existing Event has 93 ancestors and is cut-off event [2022-04-18 16:33:54,285 INFO L387 tUnfolder$Statistics]: existing Event has 91 ancestors and is cut-off event [2022-04-18 16:33:54,297 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([462] L58-7-->L58-1: Formula: (= |v_#race~c~0_7| 0) InVars {} OutVars{#race~c~0=|v_#race~c~0_7|} AuxVars[] AssignedVars[#race~c~0][86], [Black: 220#true, 113#L58-1true, 235#(= |#race~b~0| 0), 122#L76-7true, 229#true, 77#L50-1true, Black: 211#true, 213#(= |#race~c~0| 0), 222#(= |#race~a~0| 0)]) [2022-04-18 16:33:54,298 INFO L384 tUnfolder$Statistics]: this new event has 106 ancestors and is cut-off event [2022-04-18 16:33:54,298 INFO L387 tUnfolder$Statistics]: existing Event has 91 ancestors and is cut-off event [2022-04-18 16:33:54,298 INFO L387 tUnfolder$Statistics]: existing Event has 104 ancestors and is cut-off event [2022-04-18 16:33:54,298 INFO L387 tUnfolder$Statistics]: existing Event has 106 ancestors and is cut-off event [2022-04-18 16:33:54,302 INFO L129 PetriNetUnfolder]: 140/980 cut-off events. [2022-04-18 16:33:54,302 INFO L130 PetriNetUnfolder]: For 33/41 co-relation queries the response was YES. [2022-04-18 16:33:54,307 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1271 conditions, 980 events. 140/980 cut-off events. For 33/41 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 6514 event pairs, 21 based on Foata normal form. 4/862 useless extension candidates. Maximal degree in co-relation 991. Up to 146 conditions per place. [2022-04-18 16:33:54,311 INFO L132 encePairwiseOnDemand]: 189/193 looper letters, 16 selfloop transitions, 2 changer transitions 0/163 dead transitions. [2022-04-18 16:33:54,311 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 163 places, 163 transitions, 401 flow [2022-04-18 16:33:54,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:33:54,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:33:54,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 539 transitions. [2022-04-18 16:33:54,313 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9309153713298791 [2022-04-18 16:33:54,313 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 539 transitions. [2022-04-18 16:33:54,313 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 539 transitions. [2022-04-18 16:33:54,313 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:33:54,313 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 539 transitions. [2022-04-18 16:33:54,314 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 179.66666666666666) internal successors, (539), 3 states have internal predecessors, (539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:54,315 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:54,315 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:54,315 INFO L186 Difference]: Start difference. First operand has 163 places, 159 transitions, 353 flow. Second operand 3 states and 539 transitions. [2022-04-18 16:33:54,315 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 163 places, 163 transitions, 401 flow [2022-04-18 16:33:54,316 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 161 places, 163 transitions, 397 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:33:54,318 INFO L242 Difference]: Finished difference. Result has 162 places, 159 transitions, 359 flow [2022-04-18 16:33:54,318 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=345, PETRI_DIFFERENCE_MINUEND_PLACES=159, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=157, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=155, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=359, PETRI_PLACES=162, PETRI_TRANSITIONS=159} [2022-04-18 16:33:54,319 INFO L335 CegarLoopForPetriNet]: 174 programPoint places, -12 predicate places. [2022-04-18 16:33:54,319 INFO L478 AbstractCegarLoop]: Abstraction has has 162 places, 159 transitions, 359 flow [2022-04-18 16:33:54,319 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 175.0) internal successors, (525), 3 states have internal predecessors, (525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:54,319 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:33:54,319 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:33:54,320 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-04-18 16:33:54,320 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting thread3Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-04-18 16:33:54,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:33:54,320 INFO L85 PathProgramCache]: Analyzing trace with hash 154083755, now seen corresponding path program 1 times [2022-04-18 16:33:54,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:33:54,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683470145] [2022-04-18 16:33:54,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:33:54,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:33:54,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:33:54,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:33:54,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:33:54,340 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683470145] [2022-04-18 16:33:54,340 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1683470145] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:33:54,340 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:33:54,341 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:33:54,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971264482] [2022-04-18 16:33:54,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:33:54,341 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:33:54,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:33:54,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:33:54,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:33:54,342 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 173 out of 193 [2022-04-18 16:33:54,343 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 159 transitions, 359 flow. Second operand has 3 states, 3 states have (on average 174.66666666666666) internal successors, (524), 3 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:54,343 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:33:54,343 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 173 of 193 [2022-04-18 16:33:54,343 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:33:54,406 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([462] L58-7-->L58-1: Formula: (= |v_#race~c~0_7| 0) InVars {} OutVars{#race~c~0=|v_#race~c~0_7|} AuxVars[] AssignedVars[#race~c~0][86], [Black: 220#true, 113#L58-1true, 235#(= |#race~b~0| 0), 162#L75-4true, 77#L50-1true, Black: 211#true, 80#L42-1true, 213#(= |#race~c~0| 0), 238#true, Black: 233#true, 222#(= |#race~a~0| 0)]) [2022-04-18 16:33:54,407 INFO L384 tUnfolder$Statistics]: this new event has 93 ancestors and is cut-off event [2022-04-18 16:33:54,407 INFO L387 tUnfolder$Statistics]: existing Event has 78 ancestors and is cut-off event [2022-04-18 16:33:54,407 INFO L387 tUnfolder$Statistics]: existing Event has 91 ancestors and is cut-off event [2022-04-18 16:33:54,407 INFO L387 tUnfolder$Statistics]: existing Event has 93 ancestors and is cut-off event [2022-04-18 16:33:54,426 INFO L129 PetriNetUnfolder]: 109/837 cut-off events. [2022-04-18 16:33:54,426 INFO L130 PetriNetUnfolder]: For 49/63 co-relation queries the response was YES. [2022-04-18 16:33:54,429 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1125 conditions, 837 events. 109/837 cut-off events. For 49/63 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 5360 event pairs, 23 based on Foata normal form. 6/752 useless extension candidates. Maximal degree in co-relation 884. Up to 69 conditions per place. [2022-04-18 16:33:54,432 INFO L132 encePairwiseOnDemand]: 188/193 looper letters, 10 selfloop transitions, 2 changer transitions 7/159 dead transitions. [2022-04-18 16:33:54,432 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 162 places, 159 transitions, 389 flow [2022-04-18 16:33:54,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:33:54,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:33:54,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 535 transitions. [2022-04-18 16:33:54,433 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.924006908462867 [2022-04-18 16:33:54,434 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 535 transitions. [2022-04-18 16:33:54,434 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 535 transitions. [2022-04-18 16:33:54,434 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:33:54,434 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 535 transitions. [2022-04-18 16:33:54,435 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 178.33333333333334) internal successors, (535), 3 states have internal predecessors, (535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:54,436 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:54,436 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:54,436 INFO L186 Difference]: Start difference. First operand has 162 places, 159 transitions, 359 flow. Second operand 3 states and 535 transitions. [2022-04-18 16:33:54,436 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 162 places, 159 transitions, 389 flow [2022-04-18 16:33:54,437 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 162 places, 159 transitions, 389 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-04-18 16:33:54,439 INFO L242 Difference]: Finished difference. Result has 162 places, 150 transitions, 344 flow [2022-04-18 16:33:54,439 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=355, PETRI_DIFFERENCE_MINUEND_PLACES=160, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=157, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=155, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=344, PETRI_PLACES=162, PETRI_TRANSITIONS=150} [2022-04-18 16:33:54,439 INFO L335 CegarLoopForPetriNet]: 174 programPoint places, -12 predicate places. [2022-04-18 16:33:54,440 INFO L478 AbstractCegarLoop]: Abstraction has has 162 places, 150 transitions, 344 flow [2022-04-18 16:33:54,440 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 174.66666666666666) internal successors, (524), 3 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:54,440 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:33:54,440 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:33:54,440 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-04-18 16:33:54,440 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-04-18 16:33:54,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:33:54,441 INFO L85 PathProgramCache]: Analyzing trace with hash 477703347, now seen corresponding path program 1 times [2022-04-18 16:33:54,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:33:54,441 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896856323] [2022-04-18 16:33:54,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:33:54,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:33:54,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:33:54,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:33:54,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:33:54,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896856323] [2022-04-18 16:33:54,459 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1896856323] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:33:54,460 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:33:54,460 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:33:54,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157581101] [2022-04-18 16:33:54,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:33:54,460 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:33:54,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:33:54,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:33:54,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:33:54,461 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 193 [2022-04-18 16:33:54,462 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 150 transitions, 344 flow. Second operand has 3 states, 3 states have (on average 173.33333333333334) internal successors, (520), 3 states have internal predecessors, (520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:54,462 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:33:54,462 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 193 [2022-04-18 16:33:54,462 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:33:54,525 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([462] L58-7-->L58-1: Formula: (= |v_#race~c~0_7| 0) InVars {} OutVars{#race~c~0=|v_#race~c~0_7|} AuxVars[] AssignedVars[#race~c~0][86], [Black: 220#true, 113#L58-1true, 235#(= |#race~b~0| 0), 162#L75-4true, 77#L50-1true, Black: 211#true, 80#L42-1true, 242#true, 213#(= |#race~c~0| 0), 238#true, Black: 233#true, 222#(= |#race~a~0| 0)]) [2022-04-18 16:33:54,525 INFO L384 tUnfolder$Statistics]: this new event has 93 ancestors and is cut-off event [2022-04-18 16:33:54,525 INFO L387 tUnfolder$Statistics]: existing Event has 93 ancestors and is cut-off event [2022-04-18 16:33:54,525 INFO L387 tUnfolder$Statistics]: existing Event has 91 ancestors and is cut-off event [2022-04-18 16:33:54,525 INFO L387 tUnfolder$Statistics]: existing Event has 78 ancestors and is cut-off event [2022-04-18 16:33:54,536 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([449] L51-2-->L51-3: Formula: (= |v_#race~b~0_1| 0) InVars {} OutVars{#race~b~0=|v_#race~b~0_1|} AuxVars[] AssignedVars[#race~b~0][122], [Black: 220#true, 115#L59-5true, 235#(= |#race~b~0| 0), 189#L51-3true, 240#(= |#race~x_3~0| 0), Black: 211#true, 122#L76-7true, 213#(= |#race~c~0| 0), 242#true, 222#(= |#race~a~0| 0), Black: 233#true]) [2022-04-18 16:33:54,536 INFO L384 tUnfolder$Statistics]: this new event has 116 ancestors and is cut-off event [2022-04-18 16:33:54,536 INFO L387 tUnfolder$Statistics]: existing Event has 101 ancestors and is cut-off event [2022-04-18 16:33:54,536 INFO L387 tUnfolder$Statistics]: existing Event has 86 ancestors and is cut-off event [2022-04-18 16:33:54,537 INFO L387 tUnfolder$Statistics]: existing Event has 101 ancestors and is cut-off event [2022-04-18 16:33:54,538 INFO L129 PetriNetUnfolder]: 132/876 cut-off events. [2022-04-18 16:33:54,538 INFO L130 PetriNetUnfolder]: For 35/48 co-relation queries the response was YES. [2022-04-18 16:33:54,543 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1265 conditions, 876 events. 132/876 cut-off events. For 35/48 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 5885 event pairs, 52 based on Foata normal form. 0/790 useless extension candidates. Maximal degree in co-relation 955. Up to 125 conditions per place. [2022-04-18 16:33:54,546 INFO L132 encePairwiseOnDemand]: 190/193 looper letters, 11 selfloop transitions, 2 changer transitions 0/151 dead transitions. [2022-04-18 16:33:54,546 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 156 places, 151 transitions, 374 flow [2022-04-18 16:33:54,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:33:54,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:33:54,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 527 transitions. [2022-04-18 16:33:54,548 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9101899827288429 [2022-04-18 16:33:54,548 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 527 transitions. [2022-04-18 16:33:54,548 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 527 transitions. [2022-04-18 16:33:54,548 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:33:54,548 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 527 transitions. [2022-04-18 16:33:54,549 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 175.66666666666666) internal successors, (527), 3 states have internal predecessors, (527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:54,550 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:54,550 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:54,550 INFO L186 Difference]: Start difference. First operand has 162 places, 150 transitions, 344 flow. Second operand 3 states and 527 transitions. [2022-04-18 16:33:54,550 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 156 places, 151 transitions, 374 flow [2022-04-18 16:33:54,551 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 151 transitions, 370 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:33:54,553 INFO L242 Difference]: Finished difference. Result has 154 places, 149 transitions, 342 flow [2022-04-18 16:33:54,553 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=338, PETRI_DIFFERENCE_MINUEND_PLACES=152, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=149, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=147, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=342, PETRI_PLACES=154, PETRI_TRANSITIONS=149} [2022-04-18 16:33:54,553 INFO L335 CegarLoopForPetriNet]: 174 programPoint places, -20 predicate places. [2022-04-18 16:33:54,554 INFO L478 AbstractCegarLoop]: Abstraction has has 154 places, 149 transitions, 342 flow [2022-04-18 16:33:54,554 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 173.33333333333334) internal successors, (520), 3 states have internal predecessors, (520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:54,554 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:33:54,554 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:33:54,554 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-04-18 16:33:54,554 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-04-18 16:33:54,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:33:54,555 INFO L85 PathProgramCache]: Analyzing trace with hash -868196793, now seen corresponding path program 1 times [2022-04-18 16:33:54,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:33:54,555 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539921263] [2022-04-18 16:33:54,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:33:54,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:33:54,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:33:54,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:33:54,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:33:54,642 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539921263] [2022-04-18 16:33:54,642 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1539921263] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:33:54,643 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:33:54,643 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 16:33:54,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79447387] [2022-04-18 16:33:54,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:33:54,643 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 16:33:54,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:33:54,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 16:33:54,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 16:33:54,645 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 158 out of 193 [2022-04-18 16:33:54,646 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 154 places, 149 transitions, 342 flow. Second operand has 6 states, 6 states have (on average 160.0) internal successors, (960), 6 states have internal predecessors, (960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:54,646 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:33:54,646 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 158 of 193 [2022-04-18 16:33:54,646 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:33:54,722 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([462] L58-7-->L58-1: Formula: (= |v_#race~c~0_7| 0) InVars {} OutVars{#race~c~0=|v_#race~c~0_7|} AuxVars[] AssignedVars[#race~c~0][86], [Black: 220#true, 113#L58-1true, 235#(= |#race~b~0| 0), 162#L75-4true, Black: 211#true, 77#L50-1true, 80#L42-1true, 242#true, 213#(= |#race~c~0| 0), 246#true, Black: 233#true, 222#(= |#race~a~0| 0)]) [2022-04-18 16:33:54,723 INFO L384 tUnfolder$Statistics]: this new event has 93 ancestors and is cut-off event [2022-04-18 16:33:54,723 INFO L387 tUnfolder$Statistics]: existing Event has 91 ancestors and is cut-off event [2022-04-18 16:33:54,723 INFO L387 tUnfolder$Statistics]: existing Event has 93 ancestors and is cut-off event [2022-04-18 16:33:54,723 INFO L387 tUnfolder$Statistics]: existing Event has 78 ancestors and is cut-off event [2022-04-18 16:33:54,728 INFO L129 PetriNetUnfolder]: 61/575 cut-off events. [2022-04-18 16:33:54,729 INFO L130 PetriNetUnfolder]: For 3/37 co-relation queries the response was YES. [2022-04-18 16:33:54,732 INFO L84 FinitePrefix]: Finished finitePrefix Result has 794 conditions, 575 events. 61/575 cut-off events. For 3/37 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 3113 event pairs, 10 based on Foata normal form. 12/529 useless extension candidates. Maximal degree in co-relation 611. Up to 65 conditions per place. [2022-04-18 16:33:54,734 INFO L132 encePairwiseOnDemand]: 188/193 looper letters, 22 selfloop transitions, 4 changer transitions 0/148 dead transitions. [2022-04-18 16:33:54,734 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 158 places, 148 transitions, 392 flow [2022-04-18 16:33:54,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 16:33:54,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-04-18 16:33:54,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 975 transitions. [2022-04-18 16:33:54,736 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8419689119170984 [2022-04-18 16:33:54,737 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 975 transitions. [2022-04-18 16:33:54,737 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 975 transitions. [2022-04-18 16:33:54,737 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:33:54,737 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 975 transitions. [2022-04-18 16:33:54,739 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 162.5) internal successors, (975), 6 states have internal predecessors, (975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:54,740 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 193.0) internal successors, (1351), 7 states have internal predecessors, (1351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:54,740 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 193.0) internal successors, (1351), 7 states have internal predecessors, (1351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:54,740 INFO L186 Difference]: Start difference. First operand has 154 places, 149 transitions, 342 flow. Second operand 6 states and 975 transitions. [2022-04-18 16:33:54,741 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 158 places, 148 transitions, 392 flow [2022-04-18 16:33:54,742 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 156 places, 148 transitions, 388 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:33:54,743 INFO L242 Difference]: Finished difference. Result has 156 places, 148 transitions, 344 flow [2022-04-18 16:33:54,744 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=336, PETRI_DIFFERENCE_MINUEND_PLACES=151, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=148, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=344, PETRI_PLACES=156, PETRI_TRANSITIONS=148} [2022-04-18 16:33:54,744 INFO L335 CegarLoopForPetriNet]: 174 programPoint places, -18 predicate places. [2022-04-18 16:33:54,744 INFO L478 AbstractCegarLoop]: Abstraction has has 156 places, 148 transitions, 344 flow [2022-04-18 16:33:54,745 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 160.0) internal successors, (960), 6 states have internal predecessors, (960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:54,745 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:33:54,745 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:33:54,745 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-04-18 16:33:54,745 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting thread3Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-04-18 16:33:54,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:33:54,746 INFO L85 PathProgramCache]: Analyzing trace with hash 942161298, now seen corresponding path program 1 times [2022-04-18 16:33:54,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:33:54,746 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350516907] [2022-04-18 16:33:54,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:33:54,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:33:54,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:33:54,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:33:54,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:33:54,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350516907] [2022-04-18 16:33:54,766 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1350516907] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:33:54,766 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:33:54,766 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:33:54,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092540874] [2022-04-18 16:33:54,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:33:54,767 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:33:54,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:33:54,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:33:54,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:33:54,768 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 193 [2022-04-18 16:33:54,769 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 156 places, 148 transitions, 344 flow. Second operand has 3 states, 3 states have (on average 173.66666666666666) internal successors, (521), 3 states have internal predecessors, (521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:54,769 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:33:54,769 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 193 [2022-04-18 16:33:54,769 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:33:54,824 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([462] L58-7-->L58-1: Formula: (= |v_#race~c~0_7| 0) InVars {} OutVars{#race~c~0=|v_#race~c~0_7|} AuxVars[] AssignedVars[#race~c~0][86], [Black: 220#true, 253#true, 113#L58-1true, 235#(= |#race~b~0| 0), 162#L75-4true, 77#L50-1true, Black: 211#true, 80#L42-1true, 213#(= |#race~c~0| 0), 246#true, Black: 233#true, 222#(= |#race~a~0| 0)]) [2022-04-18 16:33:54,824 INFO L384 tUnfolder$Statistics]: this new event has 93 ancestors and is cut-off event [2022-04-18 16:33:54,824 INFO L387 tUnfolder$Statistics]: existing Event has 91 ancestors and is cut-off event [2022-04-18 16:33:54,824 INFO L387 tUnfolder$Statistics]: existing Event has 78 ancestors and is cut-off event [2022-04-18 16:33:54,824 INFO L387 tUnfolder$Statistics]: existing Event has 93 ancestors and is cut-off event [2022-04-18 16:33:54,836 INFO L129 PetriNetUnfolder]: 117/749 cut-off events. [2022-04-18 16:33:54,837 INFO L130 PetriNetUnfolder]: For 51/70 co-relation queries the response was YES. [2022-04-18 16:33:54,841 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1053 conditions, 749 events. 117/749 cut-off events. For 51/70 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 4700 event pairs, 38 based on Foata normal form. 1/678 useless extension candidates. Maximal degree in co-relation 975. Up to 104 conditions per place. [2022-04-18 16:33:54,843 INFO L132 encePairwiseOnDemand]: 190/193 looper letters, 11 selfloop transitions, 2 changer transitions 0/149 dead transitions. [2022-04-18 16:33:54,843 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 149 transitions, 374 flow [2022-04-18 16:33:54,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:33:54,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:33:54,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 527 transitions. [2022-04-18 16:33:54,845 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9101899827288429 [2022-04-18 16:33:54,845 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 527 transitions. [2022-04-18 16:33:54,845 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 527 transitions. [2022-04-18 16:33:54,846 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:33:54,846 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 527 transitions. [2022-04-18 16:33:54,847 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 175.66666666666666) internal successors, (527), 3 states have internal predecessors, (527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:54,848 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:54,848 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:54,848 INFO L186 Difference]: Start difference. First operand has 156 places, 148 transitions, 344 flow. Second operand 3 states and 527 transitions. [2022-04-18 16:33:54,849 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 157 places, 149 transitions, 374 flow [2022-04-18 16:33:54,850 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 149 transitions, 367 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-04-18 16:33:54,851 INFO L242 Difference]: Finished difference. Result has 153 places, 147 transitions, 339 flow [2022-04-18 16:33:54,852 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=335, PETRI_DIFFERENCE_MINUEND_PLACES=151, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=147, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=145, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=339, PETRI_PLACES=153, PETRI_TRANSITIONS=147} [2022-04-18 16:33:54,852 INFO L335 CegarLoopForPetriNet]: 174 programPoint places, -21 predicate places. [2022-04-18 16:33:54,852 INFO L478 AbstractCegarLoop]: Abstraction has has 153 places, 147 transitions, 339 flow [2022-04-18 16:33:54,853 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 173.66666666666666) internal successors, (521), 3 states have internal predecessors, (521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:54,853 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:33:54,853 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:33:54,853 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-04-18 16:33:54,853 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-04-18 16:33:54,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:33:54,854 INFO L85 PathProgramCache]: Analyzing trace with hash 519210954, now seen corresponding path program 1 times [2022-04-18 16:33:54,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:33:54,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618270762] [2022-04-18 16:33:54,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:33:54,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:33:54,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:33:54,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:33:54,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:33:54,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618270762] [2022-04-18 16:33:54,938 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [618270762] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:33:54,938 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:33:54,938 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 16:33:54,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162735297] [2022-04-18 16:33:54,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:33:54,938 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 16:33:54,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:33:54,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 16:33:54,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 16:33:54,940 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 158 out of 193 [2022-04-18 16:33:54,941 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 147 transitions, 339 flow. Second operand has 6 states, 6 states have (on average 161.0) internal successors, (966), 6 states have internal predecessors, (966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:54,941 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:33:54,941 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 158 of 193 [2022-04-18 16:33:54,941 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:33:55,006 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([462] L58-7-->L58-1: Formula: (= |v_#race~c~0_7| 0) InVars {} OutVars{#race~c~0=|v_#race~c~0_7|} AuxVars[] AssignedVars[#race~c~0][86], [Black: 220#true, 253#true, 113#L58-1true, 235#(= |#race~b~0| 0), 162#L75-4true, Black: 211#true, 77#L50-1true, 80#L42-1true, 257#true, 213#(= |#race~c~0| 0), Black: 233#true, 222#(= |#race~a~0| 0)]) [2022-04-18 16:33:55,006 INFO L384 tUnfolder$Statistics]: this new event has 93 ancestors and is cut-off event [2022-04-18 16:33:55,006 INFO L387 tUnfolder$Statistics]: existing Event has 78 ancestors and is cut-off event [2022-04-18 16:33:55,006 INFO L387 tUnfolder$Statistics]: existing Event has 91 ancestors and is cut-off event [2022-04-18 16:33:55,007 INFO L387 tUnfolder$Statistics]: existing Event has 93 ancestors and is cut-off event [2022-04-18 16:33:55,011 INFO L129 PetriNetUnfolder]: 61/566 cut-off events. [2022-04-18 16:33:55,011 INFO L130 PetriNetUnfolder]: For 3/35 co-relation queries the response was YES. [2022-04-18 16:33:55,015 INFO L84 FinitePrefix]: Finished finitePrefix Result has 789 conditions, 566 events. 61/566 cut-off events. For 3/35 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 3012 event pairs, 10 based on Foata normal form. 8/525 useless extension candidates. Maximal degree in co-relation 707. Up to 59 conditions per place. [2022-04-18 16:33:55,016 INFO L132 encePairwiseOnDemand]: 188/193 looper letters, 21 selfloop transitions, 4 changer transitions 0/146 dead transitions. [2022-04-18 16:33:55,016 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 146 transitions, 387 flow [2022-04-18 16:33:55,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 16:33:55,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-04-18 16:33:55,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 974 transitions. [2022-04-18 16:33:55,018 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8411053540587219 [2022-04-18 16:33:55,019 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 974 transitions. [2022-04-18 16:33:55,019 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 974 transitions. [2022-04-18 16:33:55,019 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:33:55,019 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 974 transitions. [2022-04-18 16:33:55,021 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 162.33333333333334) internal successors, (974), 6 states have internal predecessors, (974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:55,022 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 193.0) internal successors, (1351), 7 states have internal predecessors, (1351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:55,022 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 193.0) internal successors, (1351), 7 states have internal predecessors, (1351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:55,022 INFO L186 Difference]: Start difference. First operand has 153 places, 147 transitions, 339 flow. Second operand 6 states and 974 transitions. [2022-04-18 16:33:55,022 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 157 places, 146 transitions, 387 flow [2022-04-18 16:33:55,023 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 155 places, 146 transitions, 383 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:33:55,025 INFO L242 Difference]: Finished difference. Result has 155 places, 146 transitions, 341 flow [2022-04-18 16:33:55,025 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=333, PETRI_DIFFERENCE_MINUEND_PLACES=150, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=146, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=142, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=341, PETRI_PLACES=155, PETRI_TRANSITIONS=146} [2022-04-18 16:33:55,025 INFO L335 CegarLoopForPetriNet]: 174 programPoint places, -19 predicate places. [2022-04-18 16:33:55,026 INFO L478 AbstractCegarLoop]: Abstraction has has 155 places, 146 transitions, 341 flow [2022-04-18 16:33:55,026 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 161.0) internal successors, (966), 6 states have internal predecessors, (966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:55,026 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:33:55,026 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:33:55,026 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-04-18 16:33:55,026 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-04-18 16:33:55,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:33:55,027 INFO L85 PathProgramCache]: Analyzing trace with hash -710599679, now seen corresponding path program 1 times [2022-04-18 16:33:55,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:33:55,027 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434783523] [2022-04-18 16:33:55,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:33:55,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:33:55,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:33:55,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:33:55,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:33:55,091 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434783523] [2022-04-18 16:33:55,091 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1434783523] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:33:55,091 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:33:55,091 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 16:33:55,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799345235] [2022-04-18 16:33:55,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:33:55,092 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 16:33:55,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:33:55,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 16:33:55,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 16:33:55,093 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 158 out of 193 [2022-04-18 16:33:55,094 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 146 transitions, 341 flow. Second operand has 6 states, 6 states have (on average 162.0) internal successors, (972), 6 states have internal predecessors, (972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:55,094 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:33:55,094 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 158 of 193 [2022-04-18 16:33:55,094 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:33:55,156 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([462] L58-7-->L58-1: Formula: (= |v_#race~c~0_7| 0) InVars {} OutVars{#race~c~0=|v_#race~c~0_7|} AuxVars[] AssignedVars[#race~c~0][86], [Black: 220#true, 113#L58-1true, 235#(= |#race~b~0| 0), 162#L75-4true, 77#L50-1true, Black: 211#true, 80#L42-1true, 257#true, 213#(= |#race~c~0| 0), 264#true, 222#(= |#race~a~0| 0), Black: 233#true]) [2022-04-18 16:33:55,156 INFO L384 tUnfolder$Statistics]: this new event has 93 ancestors and is cut-off event [2022-04-18 16:33:55,156 INFO L387 tUnfolder$Statistics]: existing Event has 78 ancestors and is cut-off event [2022-04-18 16:33:55,156 INFO L387 tUnfolder$Statistics]: existing Event has 91 ancestors and is cut-off event [2022-04-18 16:33:55,156 INFO L387 tUnfolder$Statistics]: existing Event has 93 ancestors and is cut-off event [2022-04-18 16:33:55,160 INFO L129 PetriNetUnfolder]: 61/559 cut-off events. [2022-04-18 16:33:55,160 INFO L130 PetriNetUnfolder]: For 5/35 co-relation queries the response was YES. [2022-04-18 16:33:55,163 INFO L84 FinitePrefix]: Finished finitePrefix Result has 774 conditions, 559 events. 61/559 cut-off events. For 5/35 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 2982 event pairs, 10 based on Foata normal form. 0/517 useless extension candidates. Maximal degree in co-relation 692. Up to 59 conditions per place. [2022-04-18 16:33:55,164 INFO L132 encePairwiseOnDemand]: 188/193 looper letters, 0 selfloop transitions, 0 changer transitions 145/145 dead transitions. [2022-04-18 16:33:55,164 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 159 places, 145 transitions, 387 flow [2022-04-18 16:33:55,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 16:33:55,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-04-18 16:33:55,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 973 transitions. [2022-04-18 16:33:55,166 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8402417962003454 [2022-04-18 16:33:55,166 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 973 transitions. [2022-04-18 16:33:55,166 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 973 transitions. [2022-04-18 16:33:55,167 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:33:55,167 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 973 transitions. [2022-04-18 16:33:55,168 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 162.16666666666666) internal successors, (973), 6 states have internal predecessors, (973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:55,170 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 193.0) internal successors, (1351), 7 states have internal predecessors, (1351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:55,170 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 193.0) internal successors, (1351), 7 states have internal predecessors, (1351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:55,170 INFO L186 Difference]: Start difference. First operand has 155 places, 146 transitions, 341 flow. Second operand 6 states and 973 transitions. [2022-04-18 16:33:55,170 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 159 places, 145 transitions, 387 flow [2022-04-18 16:33:55,171 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 155 places, 145 transitions, 380 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-04-18 16:33:55,172 INFO L242 Difference]: Finished difference. Result has 155 places, 0 transitions, 0 flow [2022-04-18 16:33:55,172 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=332, PETRI_DIFFERENCE_MINUEND_PLACES=150, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=145, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=155, PETRI_TRANSITIONS=0} [2022-04-18 16:33:55,172 INFO L335 CegarLoopForPetriNet]: 174 programPoint places, -19 predicate places. [2022-04-18 16:33:55,173 INFO L478 AbstractCegarLoop]: Abstraction has has 155 places, 0 transitions, 0 flow [2022-04-18 16:33:55,173 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 162.0) internal successors, (972), 6 states have internal predecessors, (972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:55,175 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (37 of 38 remaining) [2022-04-18 16:33:55,175 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (36 of 38 remaining) [2022-04-18 16:33:55,175 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (35 of 38 remaining) [2022-04-18 16:33:55,176 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (34 of 38 remaining) [2022-04-18 16:33:55,176 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (33 of 38 remaining) [2022-04-18 16:33:55,176 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (32 of 38 remaining) [2022-04-18 16:33:55,176 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (31 of 38 remaining) [2022-04-18 16:33:55,176 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (30 of 38 remaining) [2022-04-18 16:33:55,176 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (29 of 38 remaining) [2022-04-18 16:33:55,176 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (28 of 38 remaining) [2022-04-18 16:33:55,176 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (27 of 38 remaining) [2022-04-18 16:33:55,177 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONDATA_RACE (26 of 38 remaining) [2022-04-18 16:33:55,177 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONDATA_RACE (25 of 38 remaining) [2022-04-18 16:33:55,177 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (24 of 38 remaining) [2022-04-18 16:33:55,177 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (23 of 38 remaining) [2022-04-18 16:33:55,177 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (22 of 38 remaining) [2022-04-18 16:33:55,177 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (21 of 38 remaining) [2022-04-18 16:33:55,177 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (20 of 38 remaining) [2022-04-18 16:33:55,177 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (19 of 38 remaining) [2022-04-18 16:33:55,178 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (18 of 38 remaining) [2022-04-18 16:33:55,178 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (17 of 38 remaining) [2022-04-18 16:33:55,178 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (16 of 38 remaining) [2022-04-18 16:33:55,178 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (15 of 38 remaining) [2022-04-18 16:33:55,178 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (14 of 38 remaining) [2022-04-18 16:33:55,178 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 38 remaining) [2022-04-18 16:33:55,178 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (12 of 38 remaining) [2022-04-18 16:33:55,178 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (11 of 38 remaining) [2022-04-18 16:33:55,179 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (10 of 38 remaining) [2022-04-18 16:33:55,179 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (9 of 38 remaining) [2022-04-18 16:33:55,179 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (8 of 38 remaining) [2022-04-18 16:33:55,179 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (7 of 38 remaining) [2022-04-18 16:33:55,179 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (6 of 38 remaining) [2022-04-18 16:33:55,179 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (5 of 38 remaining) [2022-04-18 16:33:55,179 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (4 of 38 remaining) [2022-04-18 16:33:55,179 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (3 of 38 remaining) [2022-04-18 16:33:55,180 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (2 of 38 remaining) [2022-04-18 16:33:55,180 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONDATA_RACE (1 of 38 remaining) [2022-04-18 16:33:55,180 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONDATA_RACE (0 of 38 remaining) [2022-04-18 16:33:55,180 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-04-18 16:33:55,183 INFO L719 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:33:55,185 INFO L227 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-04-18 16:33:55,185 INFO L177 ceAbstractionStarter]: Computing trace abstraction results [2022-04-18 16:33:55,187 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 04:33:55 BasicIcfg [2022-04-18 16:33:55,188 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-04-18 16:33:55,188 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-04-18 16:33:55,188 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-04-18 16:33:55,188 INFO L275 PluginConnector]: Witness Printer initialized [2022-04-18 16:33:55,188 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 04:33:52" (3/4) ... [2022-04-18 16:33:55,190 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-04-18 16:33:55,193 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-04-18 16:33:55,194 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-04-18 16:33:55,194 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2022-04-18 16:33:55,196 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2022-04-18 16:33:55,197 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-04-18 16:33:55,197 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-04-18 16:33:55,197 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-04-18 16:33:55,217 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-04-18 16:33:55,217 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-04-18 16:33:55,218 INFO L158 Benchmark]: Toolchain (without parser) took 3503.30ms. Allocated memory was 98.6MB in the beginning and 184.5MB in the end (delta: 86.0MB). Free memory was 67.2MB in the beginning and 58.0MB in the end (delta: 9.2MB). Peak memory consumption was 94.3MB. Max. memory is 16.1GB. [2022-04-18 16:33:55,218 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 98.6MB. Free memory was 53.6MB in the beginning and 53.6MB in the end (delta: 41.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-04-18 16:33:55,218 INFO L158 Benchmark]: CACSL2BoogieTranslator took 233.29ms. Allocated memory is still 98.6MB. Free memory was 67.0MB in the beginning and 72.8MB in the end (delta: -5.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-04-18 16:33:55,218 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.45ms. Allocated memory is still 98.6MB. Free memory was 72.8MB in the beginning and 70.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-04-18 16:33:55,218 INFO L158 Benchmark]: Boogie Preprocessor took 21.42ms. Allocated memory is still 98.6MB. Free memory was 70.7MB in the beginning and 69.3MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-04-18 16:33:55,219 INFO L158 Benchmark]: RCFGBuilder took 396.25ms. Allocated memory is still 98.6MB. Free memory was 69.3MB in the beginning and 53.5MB in the end (delta: 15.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-04-18 16:33:55,219 INFO L158 Benchmark]: TraceAbstraction took 2784.18ms. Allocated memory was 98.6MB in the beginning and 184.5MB in the end (delta: 86.0MB). Free memory was 53.1MB in the beginning and 62.2MB in the end (delta: -9.0MB). Peak memory consumption was 78.5MB. Max. memory is 16.1GB. [2022-04-18 16:33:55,219 INFO L158 Benchmark]: Witness Printer took 29.34ms. Allocated memory is still 184.5MB. Free memory was 61.1MB in the beginning and 58.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-04-18 16:33:55,220 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 98.6MB. Free memory was 53.6MB in the beginning and 53.6MB in the end (delta: 41.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 233.29ms. Allocated memory is still 98.6MB. Free memory was 67.0MB in the beginning and 72.8MB in the end (delta: -5.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.45ms. Allocated memory is still 98.6MB. Free memory was 72.8MB in the beginning and 70.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.42ms. Allocated memory is still 98.6MB. Free memory was 70.7MB in the beginning and 69.3MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 396.25ms. Allocated memory is still 98.6MB. Free memory was 69.3MB in the beginning and 53.5MB in the end (delta: 15.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 2784.18ms. Allocated memory was 98.6MB in the beginning and 184.5MB in the end (delta: 86.0MB). Free memory was 53.1MB in the beginning and 62.2MB in the end (delta: -9.0MB). Peak memory consumption was 78.5MB. Max. memory is 16.1GB. * Witness Printer took 29.34ms. Allocated memory is still 184.5MB. Free memory was 61.1MB in the beginning and 58.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 42]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 43]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 43]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 43]: 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: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 58]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 59]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 59]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 59]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 59]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 69]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 70]: 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: 76]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 77]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 78]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 80]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 80]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 80]: 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 7 procedures, 262 locations, 38 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: 2.7s, OverallIterations: 15, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 68 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 68 mSDsluCounter, 115 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 85 mSDsCounter, 51 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 365 IncrementalHoareTripleChecker+Invalid, 416 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 51 mSolverCounterUnsat, 115 mSDtfsCounter, 365 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 39 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=359occurred in iteration=9, InterpolantAutomatonStates: 54, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 828 NumberOfCodeBlocks, 828 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 813 ConstructedInterpolants, 0 QuantifiedInterpolants, 1080 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 15 InterpolantComputations, 15 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 22 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-04-18 16:33:55,261 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