./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/weaver/chl-word-symm.wvr.c --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/weaver/chl-word-symm.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4ca4c99e545bc332635ee8b9969d24118d6fd539f8535aa6ae4c72d296ec330e --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-31 21:36:45,656 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-31 21:36:45,658 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-31 21:36:45,700 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-31 21:36:45,701 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-31 21:36:45,704 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-31 21:36:45,705 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-31 21:36:45,708 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-31 21:36:45,710 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-31 21:36:45,715 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-31 21:36:45,715 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-31 21:36:45,718 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-31 21:36:45,718 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-31 21:36:45,720 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-31 21:36:45,721 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-31 21:36:45,726 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-31 21:36:45,727 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-31 21:36:45,727 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-31 21:36:45,728 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-31 21:36:45,735 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-31 21:36:45,737 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-31 21:36:45,738 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-31 21:36:45,739 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-31 21:36:45,739 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-31 21:36:45,746 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-31 21:36:45,749 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-31 21:36:45,750 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-31 21:36:45,751 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-31 21:36:45,752 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-31 21:36:45,753 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-31 21:36:45,753 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-31 21:36:45,754 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-31 21:36:45,756 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-31 21:36:45,757 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-31 21:36:45,758 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-31 21:36:45,758 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-31 21:36:45,758 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-31 21:36:45,759 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-31 21:36:45,759 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-31 21:36:45,760 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-31 21:36:45,760 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-31 21:36:45,762 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-31 21:36:45,795 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-31 21:36:45,795 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-31 21:36:45,797 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-31 21:36:45,797 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-31 21:36:45,798 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-31 21:36:45,798 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-31 21:36:45,798 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-31 21:36:45,799 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-31 21:36:45,799 INFO L138 SettingsManager]: * Use SBE=true [2023-08-31 21:36:45,799 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-31 21:36:45,800 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-31 21:36:45,800 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-31 21:36:45,800 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-31 21:36:45,801 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-31 21:36:45,801 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-31 21:36:45,801 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-31 21:36:45,801 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-31 21:36:45,801 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-31 21:36:45,802 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-31 21:36:45,802 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-31 21:36:45,802 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-31 21:36:45,802 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-31 21:36:45,802 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-31 21:36:45,803 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-31 21:36:45,803 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-31 21:36:45,803 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-31 21:36:45,803 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 21:36:45,803 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-31 21:36:45,804 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-31 21:36:45,804 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-31 21:36:45,804 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-31 21:36:45,804 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-31 21:36:45,805 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-31 21:36:45,805 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-31 21:36:45,805 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-31 21:36:45,805 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-31 21:36:45,805 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-31 21:36:45,806 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4ca4c99e545bc332635ee8b9969d24118d6fd539f8535aa6ae4c72d296ec330e Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-08-31 21:36:46,089 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-31 21:36:46,106 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-31 21:36:46,108 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-31 21:36:46,109 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-31 21:36:46,110 INFO L275 PluginConnector]: CDTParser initialized [2023-08-31 21:36:46,111 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-word-symm.wvr.c [2023-08-31 21:36:47,277 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-31 21:36:47,477 INFO L351 CDTParser]: Found 1 translation units. [2023-08-31 21:36:47,478 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-word-symm.wvr.c [2023-08-31 21:36:47,494 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/56d7b23a7/13bf669deaac4fd1b73fe1b63fa31bec/FLAG363f4c736 [2023-08-31 21:36:47,505 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/56d7b23a7/13bf669deaac4fd1b73fe1b63fa31bec [2023-08-31 21:36:47,506 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-31 21:36:47,508 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-31 21:36:47,509 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-31 21:36:47,509 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-31 21:36:47,512 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-31 21:36:47,513 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 09:36:47" (1/1) ... [2023-08-31 21:36:47,513 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ce6ebe2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:36:47, skipping insertion in model container [2023-08-31 21:36:47,514 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 09:36:47" (1/1) ... [2023-08-31 21:36:47,519 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-31 21:36:47,536 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-31 21:36:47,688 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-word-symm.wvr.c[2848,2861] [2023-08-31 21:36:47,697 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 21:36:47,705 INFO L203 MainTranslator]: Completed pre-run [2023-08-31 21:36:47,760 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-word-symm.wvr.c[2848,2861] [2023-08-31 21:36:47,763 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 21:36:47,779 INFO L208 MainTranslator]: Completed translation [2023-08-31 21:36:47,780 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:36:47 WrapperNode [2023-08-31 21:36:47,780 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-31 21:36:47,782 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-31 21:36:47,782 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-31 21:36:47,782 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-31 21:36:47,788 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:36:47" (1/1) ... [2023-08-31 21:36:47,809 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:36:47" (1/1) ... [2023-08-31 21:36:47,849 INFO L138 Inliner]: procedures = 24, calls = 35, calls flagged for inlining = 9, calls inlined = 11, statements flattened = 210 [2023-08-31 21:36:47,850 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-31 21:36:47,851 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-31 21:36:47,852 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-31 21:36:47,852 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-31 21:36:47,860 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:36:47" (1/1) ... [2023-08-31 21:36:47,860 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:36:47" (1/1) ... [2023-08-31 21:36:47,876 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:36:47" (1/1) ... [2023-08-31 21:36:47,878 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:36:47" (1/1) ... [2023-08-31 21:36:47,891 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:36:47" (1/1) ... [2023-08-31 21:36:47,907 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:36:47" (1/1) ... [2023-08-31 21:36:47,914 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:36:47" (1/1) ... [2023-08-31 21:36:47,916 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:36:47" (1/1) ... [2023-08-31 21:36:47,921 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-31 21:36:47,923 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-31 21:36:47,925 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-31 21:36:47,925 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-31 21:36:47,926 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:36:47" (1/1) ... [2023-08-31 21:36:47,930 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 21:36:47,942 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 21:36:47,958 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-31 21:36:47,980 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-31 21:36:47,995 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-31 21:36:47,995 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-31 21:36:47,995 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-31 21:36:47,995 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-31 21:36:47,995 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-31 21:36:47,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-31 21:36:47,996 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-31 21:36:47,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-31 21:36:47,996 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-31 21:36:47,996 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-31 21:36:47,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-31 21:36:47,996 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-31 21:36:47,996 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-31 21:36:47,998 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-31 21:36:48,138 INFO L236 CfgBuilder]: Building ICFG [2023-08-31 21:36:48,140 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-31 21:36:48,839 INFO L277 CfgBuilder]: Performing block encoding [2023-08-31 21:36:48,861 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-31 21:36:48,861 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-08-31 21:36:48,864 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 09:36:48 BoogieIcfgContainer [2023-08-31 21:36:48,865 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-31 21:36:48,866 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-31 21:36:48,866 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-31 21:36:48,869 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-31 21:36:48,869 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.08 09:36:47" (1/3) ... [2023-08-31 21:36:48,870 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ef2962d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 09:36:48, skipping insertion in model container [2023-08-31 21:36:48,870 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:36:47" (2/3) ... [2023-08-31 21:36:48,871 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ef2962d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 09:36:48, skipping insertion in model container [2023-08-31 21:36:48,871 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 09:36:48" (3/3) ... [2023-08-31 21:36:48,872 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-word-symm.wvr.c [2023-08-31 21:36:48,879 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-31 21:36:48,887 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-31 21:36:48,888 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 56 error locations. [2023-08-31 21:36:48,888 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-31 21:36:49,023 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-31 21:36:49,074 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 451 places, 470 transitions, 956 flow [2023-08-31 21:36:49,211 INFO L130 PetriNetUnfolder]: 26/468 cut-off events. [2023-08-31 21:36:49,211 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-31 21:36:49,219 INFO L83 FinitePrefix]: Finished finitePrefix Result has 477 conditions, 468 events. 26/468 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1067 event pairs, 0 based on Foata normal form. 0/386 useless extension candidates. Maximal degree in co-relation 279. Up to 3 conditions per place. [2023-08-31 21:36:49,220 INFO L82 GeneralOperation]: Start removeDead. Operand has 451 places, 470 transitions, 956 flow [2023-08-31 21:36:49,228 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 433 places, 450 transitions, 912 flow [2023-08-31 21:36:49,231 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-31 21:36:49,239 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 433 places, 450 transitions, 912 flow [2023-08-31 21:36:49,241 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 433 places, 450 transitions, 912 flow [2023-08-31 21:36:49,242 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 433 places, 450 transitions, 912 flow [2023-08-31 21:36:49,325 INFO L130 PetriNetUnfolder]: 24/450 cut-off events. [2023-08-31 21:36:49,325 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-31 21:36:49,330 INFO L83 FinitePrefix]: Finished finitePrefix Result has 459 conditions, 450 events. 24/450 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1053 event pairs, 0 based on Foata normal form. 0/371 useless extension candidates. Maximal degree in co-relation 279. Up to 3 conditions per place. [2023-08-31 21:36:49,344 INFO L119 LiptonReduction]: Number of co-enabled transitions 31968 [2023-08-31 21:36:57,552 INFO L134 LiptonReduction]: Checked pairs total: 235448 [2023-08-31 21:36:57,553 INFO L136 LiptonReduction]: Total number of compositions: 380 [2023-08-31 21:36:57,564 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-31 21:36:57,569 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5fcd1766, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-31 21:36:57,570 INFO L358 AbstractCegarLoop]: Starting to check reachability of 96 error locations. [2023-08-31 21:36:57,571 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-31 21:36:57,571 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 21:36:57,572 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:36:57,572 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-31 21:36:57,573 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2023-08-31 21:36:57,576 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:36:57,577 INFO L85 PathProgramCache]: Analyzing trace with hash 1673, now seen corresponding path program 1 times [2023-08-31 21:36:57,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:36:57,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561248785] [2023-08-31 21:36:57,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:36:57,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:36:57,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:36:57,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:36:57,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:36:57,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561248785] [2023-08-31 21:36:57,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1561248785] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:36:57,670 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:36:57,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-31 21:36:57,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518917771] [2023-08-31 21:36:57,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:36:57,677 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-31 21:36:57,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:36:57,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-31 21:36:57,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-31 21:36:57,704 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 454 out of 850 [2023-08-31 21:36:57,707 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 173 places, 180 transitions, 372 flow. Second operand has 2 states, 2 states have (on average 454.5) internal successors, (909), 2 states have internal predecessors, (909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:36:57,707 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:36:57,708 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 454 of 850 [2023-08-31 21:36:57,708 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:36:58,162 INFO L130 PetriNetUnfolder]: 817/3012 cut-off events. [2023-08-31 21:36:58,162 INFO L131 PetriNetUnfolder]: For 103/145 co-relation queries the response was YES. [2023-08-31 21:36:58,168 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4284 conditions, 3012 events. 817/3012 cut-off events. For 103/145 co-relation queries the response was YES. Maximal size of possible extension queue 121. Compared 25641 event pairs, 525 based on Foata normal form. 204/2516 useless extension candidates. Maximal degree in co-relation 3992. Up to 1228 conditions per place. [2023-08-31 21:36:58,183 INFO L137 encePairwiseOnDemand]: 826/850 looper letters, 46 selfloop transitions, 0 changer transitions 1/156 dead transitions. [2023-08-31 21:36:58,183 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 156 transitions, 418 flow [2023-08-31 21:36:58,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-31 21:36:58,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-31 21:36:58,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 979 transitions. [2023-08-31 21:36:58,203 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5758823529411765 [2023-08-31 21:36:58,204 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 979 transitions. [2023-08-31 21:36:58,204 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 979 transitions. [2023-08-31 21:36:58,208 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:36:58,210 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 979 transitions. [2023-08-31 21:36:58,216 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 489.5) internal successors, (979), 2 states have internal predecessors, (979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:36:58,224 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 850.0) internal successors, (2550), 3 states have internal predecessors, (2550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:36:58,226 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 850.0) internal successors, (2550), 3 states have internal predecessors, (2550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:36:58,227 INFO L175 Difference]: Start difference. First operand has 173 places, 180 transitions, 372 flow. Second operand 2 states and 979 transitions. [2023-08-31 21:36:58,228 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 156 transitions, 418 flow [2023-08-31 21:36:58,235 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 156 transitions, 410 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-31 21:36:58,240 INFO L231 Difference]: Finished difference. Result has 148 places, 155 transitions, 313 flow [2023-08-31 21:36:58,243 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=850, PETRI_DIFFERENCE_MINUEND_FLOW=316, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=156, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=156, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=313, PETRI_PLACES=148, PETRI_TRANSITIONS=155} [2023-08-31 21:36:58,247 INFO L281 CegarLoopForPetriNet]: 173 programPoint places, -25 predicate places. [2023-08-31 21:36:58,247 INFO L495 AbstractCegarLoop]: Abstraction has has 148 places, 155 transitions, 313 flow [2023-08-31 21:36:58,248 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 454.5) internal successors, (909), 2 states have internal predecessors, (909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:36:58,249 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:36:58,250 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-31 21:36:58,250 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-31 21:36:58,251 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2023-08-31 21:36:58,260 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:36:58,261 INFO L85 PathProgramCache]: Analyzing trace with hash -1763721432, now seen corresponding path program 1 times [2023-08-31 21:36:58,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:36:58,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361395800] [2023-08-31 21:36:58,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:36:58,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:36:58,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:36:58,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:36:58,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:36:58,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361395800] [2023-08-31 21:36:58,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1361395800] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:36:58,401 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:36:58,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 21:36:58,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990780166] [2023-08-31 21:36:58,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:36:58,403 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 21:36:58,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:36:58,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 21:36:58,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 21:36:58,420 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 441 out of 850 [2023-08-31 21:36:58,422 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 155 transitions, 313 flow. Second operand has 3 states, 3 states have (on average 443.0) internal successors, (1329), 3 states have internal predecessors, (1329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:36:58,422 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:36:58,422 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 441 of 850 [2023-08-31 21:36:58,422 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:36:58,775 INFO L130 PetriNetUnfolder]: 1095/3599 cut-off events. [2023-08-31 21:36:58,775 INFO L131 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2023-08-31 21:36:58,781 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5283 conditions, 3599 events. 1095/3599 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 128. Compared 29950 event pairs, 417 based on Foata normal form. 0/2868 useless extension candidates. Maximal degree in co-relation 5280. Up to 1654 conditions per place. [2023-08-31 21:36:58,793 INFO L137 encePairwiseOnDemand]: 844/850 looper letters, 55 selfloop transitions, 2 changer transitions 0/157 dead transitions. [2023-08-31 21:36:58,794 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 157 transitions, 432 flow [2023-08-31 21:36:58,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 21:36:58,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 21:36:58,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1384 transitions. [2023-08-31 21:36:58,797 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5427450980392157 [2023-08-31 21:36:58,798 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1384 transitions. [2023-08-31 21:36:58,798 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1384 transitions. [2023-08-31 21:36:58,798 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:36:58,799 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1384 transitions. [2023-08-31 21:36:58,801 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 461.3333333333333) internal successors, (1384), 3 states have internal predecessors, (1384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:36:58,806 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 850.0) internal successors, (3400), 4 states have internal predecessors, (3400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:36:58,808 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 850.0) internal successors, (3400), 4 states have internal predecessors, (3400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:36:58,808 INFO L175 Difference]: Start difference. First operand has 148 places, 155 transitions, 313 flow. Second operand 3 states and 1384 transitions. [2023-08-31 21:36:58,808 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 157 transitions, 432 flow [2023-08-31 21:36:58,809 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 157 transitions, 432 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 21:36:58,811 INFO L231 Difference]: Finished difference. Result has 146 places, 153 transitions, 319 flow [2023-08-31 21:36:58,812 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=850, PETRI_DIFFERENCE_MINUEND_FLOW=305, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=151, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=149, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=319, PETRI_PLACES=146, PETRI_TRANSITIONS=153} [2023-08-31 21:36:58,812 INFO L281 CegarLoopForPetriNet]: 173 programPoint places, -27 predicate places. [2023-08-31 21:36:58,813 INFO L495 AbstractCegarLoop]: Abstraction has has 146 places, 153 transitions, 319 flow [2023-08-31 21:36:58,814 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 443.0) internal successors, (1329), 3 states have internal predecessors, (1329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:36:58,814 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:36:58,814 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:36:58,814 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-31 21:36:58,814 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2023-08-31 21:36:58,815 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:36:58,815 INFO L85 PathProgramCache]: Analyzing trace with hash 1582506890, now seen corresponding path program 1 times [2023-08-31 21:36:58,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:36:58,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961776244] [2023-08-31 21:36:58,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:36:58,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:36:58,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:36:58,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:36:58,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:36:58,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961776244] [2023-08-31 21:36:58,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [961776244] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:36:58,875 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:36:58,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 21:36:58,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42575263] [2023-08-31 21:36:58,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:36:58,876 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 21:36:58,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:36:58,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 21:36:58,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 21:36:58,891 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 441 out of 850 [2023-08-31 21:36:58,893 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 153 transitions, 319 flow. Second operand has 3 states, 3 states have (on average 443.6666666666667) internal successors, (1331), 3 states have internal predecessors, (1331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:36:58,893 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:36:58,894 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 441 of 850 [2023-08-31 21:36:58,894 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:36:59,236 INFO L130 PetriNetUnfolder]: 1082/3487 cut-off events. [2023-08-31 21:36:59,237 INFO L131 PetriNetUnfolder]: For 50/50 co-relation queries the response was YES. [2023-08-31 21:36:59,244 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5204 conditions, 3487 events. 1082/3487 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 124. Compared 28613 event pairs, 411 based on Foata normal form. 0/2780 useless extension candidates. Maximal degree in co-relation 5200. Up to 1627 conditions per place. [2023-08-31 21:36:59,257 INFO L137 encePairwiseOnDemand]: 844/850 looper letters, 56 selfloop transitions, 2 changer transitions 0/155 dead transitions. [2023-08-31 21:36:59,258 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 155 transitions, 443 flow [2023-08-31 21:36:59,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 21:36:59,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 21:36:59,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1384 transitions. [2023-08-31 21:36:59,262 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5427450980392157 [2023-08-31 21:36:59,262 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1384 transitions. [2023-08-31 21:36:59,262 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1384 transitions. [2023-08-31 21:36:59,263 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:36:59,263 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1384 transitions. [2023-08-31 21:36:59,266 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 461.3333333333333) internal successors, (1384), 3 states have internal predecessors, (1384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:36:59,286 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 850.0) internal successors, (3400), 4 states have internal predecessors, (3400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:36:59,288 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 850.0) internal successors, (3400), 4 states have internal predecessors, (3400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:36:59,288 INFO L175 Difference]: Start difference. First operand has 146 places, 153 transitions, 319 flow. Second operand 3 states and 1384 transitions. [2023-08-31 21:36:59,288 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 155 transitions, 443 flow [2023-08-31 21:36:59,289 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 155 transitions, 443 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 21:36:59,291 INFO L231 Difference]: Finished difference. Result has 145 places, 151 transitions, 325 flow [2023-08-31 21:36:59,291 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=850, PETRI_DIFFERENCE_MINUEND_FLOW=311, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=149, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=147, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=325, PETRI_PLACES=145, PETRI_TRANSITIONS=151} [2023-08-31 21:36:59,292 INFO L281 CegarLoopForPetriNet]: 173 programPoint places, -28 predicate places. [2023-08-31 21:36:59,292 INFO L495 AbstractCegarLoop]: Abstraction has has 145 places, 151 transitions, 325 flow [2023-08-31 21:36:59,293 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 443.6666666666667) internal successors, (1331), 3 states have internal predecessors, (1331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:36:59,293 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:36:59,293 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:36:59,294 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-31 21:36:59,294 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2023-08-31 21:36:59,294 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:36:59,294 INFO L85 PathProgramCache]: Analyzing trace with hash -1759661657, now seen corresponding path program 1 times [2023-08-31 21:36:59,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:36:59,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403586363] [2023-08-31 21:36:59,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:36:59,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:36:59,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:36:59,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:36:59,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:36:59,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403586363] [2023-08-31 21:36:59,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1403586363] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:36:59,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:36:59,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 21:36:59,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997651505] [2023-08-31 21:36:59,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:36:59,343 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 21:36:59,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:36:59,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 21:36:59,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 21:36:59,360 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 438 out of 850 [2023-08-31 21:36:59,362 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 151 transitions, 325 flow. Second operand has 3 states, 3 states have (on average 440.6666666666667) internal successors, (1322), 3 states have internal predecessors, (1322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:36:59,362 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:36:59,362 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 438 of 850 [2023-08-31 21:36:59,362 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:36:59,657 INFO L130 PetriNetUnfolder]: 1075/3361 cut-off events. [2023-08-31 21:36:59,657 INFO L131 PetriNetUnfolder]: For 76/77 co-relation queries the response was YES. [2023-08-31 21:36:59,663 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5095 conditions, 3361 events. 1075/3361 cut-off events. For 76/77 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 27175 event pairs, 643 based on Foata normal form. 0/2645 useless extension candidates. Maximal degree in co-relation 5090. Up to 1625 conditions per place. [2023-08-31 21:36:59,676 INFO L137 encePairwiseOnDemand]: 845/850 looper letters, 51 selfloop transitions, 1 changer transitions 0/147 dead transitions. [2023-08-31 21:36:59,676 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 147 transitions, 421 flow [2023-08-31 21:36:59,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 21:36:59,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 21:36:59,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1368 transitions. [2023-08-31 21:36:59,680 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5364705882352941 [2023-08-31 21:36:59,680 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1368 transitions. [2023-08-31 21:36:59,680 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1368 transitions. [2023-08-31 21:36:59,681 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:36:59,681 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1368 transitions. [2023-08-31 21:36:59,684 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 456.0) internal successors, (1368), 3 states have internal predecessors, (1368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:36:59,688 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 850.0) internal successors, (3400), 4 states have internal predecessors, (3400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:36:59,690 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 850.0) internal successors, (3400), 4 states have internal predecessors, (3400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:36:59,690 INFO L175 Difference]: Start difference. First operand has 145 places, 151 transitions, 325 flow. Second operand 3 states and 1368 transitions. [2023-08-31 21:36:59,690 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 147 transitions, 421 flow [2023-08-31 21:36:59,691 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 147 transitions, 421 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 21:36:59,693 INFO L231 Difference]: Finished difference. Result has 143 places, 147 transitions, 319 flow [2023-08-31 21:36:59,693 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=850, PETRI_DIFFERENCE_MINUEND_FLOW=317, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=147, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=146, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=319, PETRI_PLACES=143, PETRI_TRANSITIONS=147} [2023-08-31 21:36:59,694 INFO L281 CegarLoopForPetriNet]: 173 programPoint places, -30 predicate places. [2023-08-31 21:36:59,694 INFO L495 AbstractCegarLoop]: Abstraction has has 143 places, 147 transitions, 319 flow [2023-08-31 21:36:59,695 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 440.6666666666667) internal successors, (1322), 3 states have internal predecessors, (1322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:36:59,695 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:36:59,695 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:36:59,696 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-31 21:36:59,696 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2023-08-31 21:36:59,696 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:36:59,696 INFO L85 PathProgramCache]: Analyzing trace with hash -1219981720, now seen corresponding path program 1 times [2023-08-31 21:36:59,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:36:59,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663125212] [2023-08-31 21:36:59,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:36:59,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:36:59,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:37:00,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:37:00,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:37:00,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663125212] [2023-08-31 21:37:00,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663125212] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:37:00,147 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:37:00,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 21:37:00,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050723855] [2023-08-31 21:37:00,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:37:00,148 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 21:37:00,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:37:00,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 21:37:00,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 21:37:00,593 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 437 out of 850 [2023-08-31 21:37:00,596 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 147 transitions, 319 flow. Second operand has 6 states, 6 states have (on average 438.8333333333333) internal successors, (2633), 6 states have internal predecessors, (2633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:00,597 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:37:00,597 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 437 of 850 [2023-08-31 21:37:00,597 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:37:01,279 INFO L130 PetriNetUnfolder]: 3032/5650 cut-off events. [2023-08-31 21:37:01,308 INFO L131 PetriNetUnfolder]: For 170/171 co-relation queries the response was YES. [2023-08-31 21:37:01,325 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10146 conditions, 5650 events. 3032/5650 cut-off events. For 170/171 co-relation queries the response was YES. Maximal size of possible extension queue 216. Compared 39684 event pairs, 147 based on Foata normal form. 0/4248 useless extension candidates. Maximal degree in co-relation 10140. Up to 1570 conditions per place. [2023-08-31 21:37:01,351 INFO L137 encePairwiseOnDemand]: 845/850 looper letters, 196 selfloop transitions, 4 changer transitions 0/294 dead transitions. [2023-08-31 21:37:01,351 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 294 transitions, 1053 flow [2023-08-31 21:37:01,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 21:37:01,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 21:37:01,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2813 transitions. [2023-08-31 21:37:01,358 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5515686274509803 [2023-08-31 21:37:01,358 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2813 transitions. [2023-08-31 21:37:01,358 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2813 transitions. [2023-08-31 21:37:01,361 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:37:01,361 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2813 transitions. [2023-08-31 21:37:01,367 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 468.8333333333333) internal successors, (2813), 6 states have internal predecessors, (2813), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:01,379 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 850.0) internal successors, (5950), 7 states have internal predecessors, (5950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:01,382 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 850.0) internal successors, (5950), 7 states have internal predecessors, (5950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:01,382 INFO L175 Difference]: Start difference. First operand has 143 places, 147 transitions, 319 flow. Second operand 6 states and 2813 transitions. [2023-08-31 21:37:01,382 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 294 transitions, 1053 flow [2023-08-31 21:37:01,384 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 294 transitions, 1052 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-31 21:37:01,387 INFO L231 Difference]: Finished difference. Result has 146 places, 146 transitions, 324 flow [2023-08-31 21:37:01,387 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=850, PETRI_DIFFERENCE_MINUEND_FLOW=316, PETRI_DIFFERENCE_MINUEND_PLACES=141, 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=324, PETRI_PLACES=146, PETRI_TRANSITIONS=146} [2023-08-31 21:37:01,388 INFO L281 CegarLoopForPetriNet]: 173 programPoint places, -27 predicate places. [2023-08-31 21:37:01,388 INFO L495 AbstractCegarLoop]: Abstraction has has 146 places, 146 transitions, 324 flow [2023-08-31 21:37:01,390 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 438.8333333333333) internal successors, (2633), 6 states have internal predecessors, (2633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:01,390 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:37:01,390 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:37:01,390 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-31 21:37:01,390 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2023-08-31 21:37:01,391 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:37:01,391 INFO L85 PathProgramCache]: Analyzing trace with hash -204044010, now seen corresponding path program 1 times [2023-08-31 21:37:01,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:37:01,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145591692] [2023-08-31 21:37:01,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:37:01,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:37:01,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:37:01,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:37:01,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:37:01,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145591692] [2023-08-31 21:37:01,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [145591692] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:37:01,422 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:37:01,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 21:37:01,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122833492] [2023-08-31 21:37:01,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:37:01,424 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 21:37:01,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:37:01,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 21:37:01,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 21:37:01,443 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 438 out of 850 [2023-08-31 21:37:01,446 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 146 transitions, 324 flow. Second operand has 3 states, 3 states have (on average 441.3333333333333) internal successors, (1324), 3 states have internal predecessors, (1324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:01,447 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:37:01,447 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 438 of 850 [2023-08-31 21:37:01,447 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:37:01,707 INFO L130 PetriNetUnfolder]: 1075/3198 cut-off events. [2023-08-31 21:37:01,707 INFO L131 PetriNetUnfolder]: For 303/312 co-relation queries the response was YES. [2023-08-31 21:37:01,717 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5222 conditions, 3198 events. 1075/3198 cut-off events. For 303/312 co-relation queries the response was YES. Maximal size of possible extension queue 111. Compared 25229 event pairs, 643 based on Foata normal form. 0/2537 useless extension candidates. Maximal degree in co-relation 5216. Up to 1623 conditions per place. [2023-08-31 21:37:01,727 INFO L137 encePairwiseOnDemand]: 845/850 looper letters, 51 selfloop transitions, 1 changer transitions 0/142 dead transitions. [2023-08-31 21:37:01,727 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 142 transitions, 420 flow [2023-08-31 21:37:01,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 21:37:01,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 21:37:01,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1368 transitions. [2023-08-31 21:37:01,773 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5364705882352941 [2023-08-31 21:37:01,774 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1368 transitions. [2023-08-31 21:37:01,774 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1368 transitions. [2023-08-31 21:37:01,774 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:37:01,774 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1368 transitions. [2023-08-31 21:37:01,777 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 456.0) internal successors, (1368), 3 states have internal predecessors, (1368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:01,781 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 850.0) internal successors, (3400), 4 states have internal predecessors, (3400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:01,782 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 850.0) internal successors, (3400), 4 states have internal predecessors, (3400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:01,782 INFO L175 Difference]: Start difference. First operand has 146 places, 146 transitions, 324 flow. Second operand 3 states and 1368 transitions. [2023-08-31 21:37:01,782 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 142 transitions, 420 flow [2023-08-31 21:37:01,784 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 142 transitions, 413 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-31 21:37:01,786 INFO L231 Difference]: Finished difference. Result has 140 places, 142 transitions, 311 flow [2023-08-31 21:37:01,786 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=850, PETRI_DIFFERENCE_MINUEND_FLOW=309, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=141, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=311, PETRI_PLACES=140, PETRI_TRANSITIONS=142} [2023-08-31 21:37:01,787 INFO L281 CegarLoopForPetriNet]: 173 programPoint places, -33 predicate places. [2023-08-31 21:37:01,787 INFO L495 AbstractCegarLoop]: Abstraction has has 140 places, 142 transitions, 311 flow [2023-08-31 21:37:01,787 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 441.3333333333333) internal successors, (1324), 3 states have internal predecessors, (1324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:01,788 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:37:01,788 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:37:01,788 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-31 21:37:01,788 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2023-08-31 21:37:01,788 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:37:01,789 INFO L85 PathProgramCache]: Analyzing trace with hash 1182687205, now seen corresponding path program 1 times [2023-08-31 21:37:01,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:37:01,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345371857] [2023-08-31 21:37:01,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:37:01,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:37:01,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:37:01,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:37:01,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:37:01,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345371857] [2023-08-31 21:37:01,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [345371857] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:37:01,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:37:01,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-31 21:37:01,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414143990] [2023-08-31 21:37:01,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:37:01,813 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 21:37:01,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:37:01,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 21:37:01,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 21:37:01,822 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 446 out of 850 [2023-08-31 21:37:01,823 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 142 transitions, 311 flow. Second operand has 3 states, 3 states have (on average 448.6666666666667) internal successors, (1346), 3 states have internal predecessors, (1346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:01,824 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:37:01,824 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 446 of 850 [2023-08-31 21:37:01,824 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:37:02,124 INFO L130 PetriNetUnfolder]: 915/3121 cut-off events. [2023-08-31 21:37:02,124 INFO L131 PetriNetUnfolder]: For 66/67 co-relation queries the response was YES. [2023-08-31 21:37:02,134 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4625 conditions, 3121 events. 915/3121 cut-off events. For 66/67 co-relation queries the response was YES. Maximal size of possible extension queue 105. Compared 25597 event pairs, 477 based on Foata normal form. 0/2485 useless extension candidates. Maximal degree in co-relation 4619. Up to 1282 conditions per place. [2023-08-31 21:37:02,144 INFO L137 encePairwiseOnDemand]: 847/850 looper letters, 70 selfloop transitions, 2 changer transitions 0/166 dead transitions. [2023-08-31 21:37:02,144 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 166 transitions, 506 flow [2023-08-31 21:37:02,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 21:37:02,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 21:37:02,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1409 transitions. [2023-08-31 21:37:02,148 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5525490196078431 [2023-08-31 21:37:02,149 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1409 transitions. [2023-08-31 21:37:02,149 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1409 transitions. [2023-08-31 21:37:02,150 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:37:02,150 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1409 transitions. [2023-08-31 21:37:02,152 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 469.6666666666667) internal successors, (1409), 3 states have internal predecessors, (1409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:02,168 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 850.0) internal successors, (3400), 4 states have internal predecessors, (3400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:02,169 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 850.0) internal successors, (3400), 4 states have internal predecessors, (3400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:02,169 INFO L175 Difference]: Start difference. First operand has 140 places, 142 transitions, 311 flow. Second operand 3 states and 1409 transitions. [2023-08-31 21:37:02,170 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 166 transitions, 506 flow [2023-08-31 21:37:02,171 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 166 transitions, 505 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-31 21:37:02,173 INFO L231 Difference]: Finished difference. Result has 142 places, 143 transitions, 322 flow [2023-08-31 21:37:02,173 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=850, PETRI_DIFFERENCE_MINUEND_FLOW=310, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=140, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=322, PETRI_PLACES=142, PETRI_TRANSITIONS=143} [2023-08-31 21:37:02,174 INFO L281 CegarLoopForPetriNet]: 173 programPoint places, -31 predicate places. [2023-08-31 21:37:02,174 INFO L495 AbstractCegarLoop]: Abstraction has has 142 places, 143 transitions, 322 flow [2023-08-31 21:37:02,174 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 448.6666666666667) internal successors, (1346), 3 states have internal predecessors, (1346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:02,175 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:37:02,175 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:37:02,175 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-31 21:37:02,175 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2023-08-31 21:37:02,175 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:37:02,176 INFO L85 PathProgramCache]: Analyzing trace with hash 1482516808, now seen corresponding path program 1 times [2023-08-31 21:37:02,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:37:02,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314925281] [2023-08-31 21:37:02,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:37:02,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:37:02,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:37:02,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:37:02,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:37:02,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314925281] [2023-08-31 21:37:02,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [314925281] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:37:02,224 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:37:02,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-31 21:37:02,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57655917] [2023-08-31 21:37:02,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:37:02,225 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 21:37:02,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:37:02,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 21:37:02,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 21:37:02,238 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 446 out of 850 [2023-08-31 21:37:02,239 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 143 transitions, 322 flow. Second operand has 3 states, 3 states have (on average 449.3333333333333) internal successors, (1348), 3 states have internal predecessors, (1348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:02,240 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:37:02,240 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 446 of 850 [2023-08-31 21:37:02,240 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:37:02,585 INFO L130 PetriNetUnfolder]: 963/3200 cut-off events. [2023-08-31 21:37:02,585 INFO L131 PetriNetUnfolder]: For 219/226 co-relation queries the response was YES. [2023-08-31 21:37:02,595 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4962 conditions, 3200 events. 963/3200 cut-off events. For 219/226 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 25988 event pairs, 523 based on Foata normal form. 0/2594 useless extension candidates. Maximal degree in co-relation 4955. Up to 1374 conditions per place. [2023-08-31 21:37:02,606 INFO L137 encePairwiseOnDemand]: 847/850 looper letters, 67 selfloop transitions, 2 changer transitions 0/163 dead transitions. [2023-08-31 21:37:02,606 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 163 transitions, 513 flow [2023-08-31 21:37:02,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 21:37:02,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 21:37:02,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1404 transitions. [2023-08-31 21:37:02,610 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5505882352941176 [2023-08-31 21:37:02,611 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1404 transitions. [2023-08-31 21:37:02,611 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1404 transitions. [2023-08-31 21:37:02,612 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:37:02,612 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1404 transitions. [2023-08-31 21:37:02,614 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 468.0) internal successors, (1404), 3 states have internal predecessors, (1404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:02,618 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 850.0) internal successors, (3400), 4 states have internal predecessors, (3400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:02,619 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 850.0) internal successors, (3400), 4 states have internal predecessors, (3400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:02,619 INFO L175 Difference]: Start difference. First operand has 142 places, 143 transitions, 322 flow. Second operand 3 states and 1404 transitions. [2023-08-31 21:37:02,619 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 163 transitions, 513 flow [2023-08-31 21:37:02,622 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 163 transitions, 509 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-31 21:37:02,623 INFO L231 Difference]: Finished difference. Result has 144 places, 144 transitions, 332 flow [2023-08-31 21:37:02,624 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=850, PETRI_DIFFERENCE_MINUEND_FLOW=320, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=143, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=141, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=332, PETRI_PLACES=144, PETRI_TRANSITIONS=144} [2023-08-31 21:37:02,624 INFO L281 CegarLoopForPetriNet]: 173 programPoint places, -29 predicate places. [2023-08-31 21:37:02,625 INFO L495 AbstractCegarLoop]: Abstraction has has 144 places, 144 transitions, 332 flow [2023-08-31 21:37:02,625 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 449.3333333333333) internal successors, (1348), 3 states have internal predecessors, (1348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:02,625 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:37:02,625 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:37:02,626 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-31 21:37:02,626 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2023-08-31 21:37:02,626 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:37:02,626 INFO L85 PathProgramCache]: Analyzing trace with hash -1615897533, now seen corresponding path program 1 times [2023-08-31 21:37:02,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:37:02,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167655751] [2023-08-31 21:37:02,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:37:02,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:37:02,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:37:02,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:37:02,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:37:02,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167655751] [2023-08-31 21:37:02,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [167655751] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:37:02,651 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:37:02,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 21:37:02,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989414242] [2023-08-31 21:37:02,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:37:02,652 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 21:37:02,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:37:02,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 21:37:02,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 21:37:02,666 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 441 out of 850 [2023-08-31 21:37:02,668 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 144 transitions, 332 flow. Second operand has 3 states, 3 states have (on average 444.3333333333333) internal successors, (1333), 3 states have internal predecessors, (1333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:02,668 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:37:02,668 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 441 of 850 [2023-08-31 21:37:02,668 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:37:03,210 INFO L130 PetriNetUnfolder]: 1895/5228 cut-off events. [2023-08-31 21:37:03,211 INFO L131 PetriNetUnfolder]: For 521/522 co-relation queries the response was YES. [2023-08-31 21:37:03,226 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8872 conditions, 5228 events. 1895/5228 cut-off events. For 521/522 co-relation queries the response was YES. Maximal size of possible extension queue 164. Compared 42400 event pairs, 391 based on Foata normal form. 0/4434 useless extension candidates. Maximal degree in co-relation 8864. Up to 2058 conditions per place. [2023-08-31 21:37:03,242 INFO L137 encePairwiseOnDemand]: 844/850 looper letters, 88 selfloop transitions, 2 changer transitions 0/173 dead transitions. [2023-08-31 21:37:03,243 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 173 transitions, 594 flow [2023-08-31 21:37:03,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 21:37:03,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 21:37:03,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1411 transitions. [2023-08-31 21:37:03,246 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5533333333333333 [2023-08-31 21:37:03,247 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1411 transitions. [2023-08-31 21:37:03,247 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1411 transitions. [2023-08-31 21:37:03,247 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:37:03,248 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1411 transitions. [2023-08-31 21:37:03,250 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 470.3333333333333) internal successors, (1411), 3 states have internal predecessors, (1411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:03,253 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 850.0) internal successors, (3400), 4 states have internal predecessors, (3400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:03,254 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 850.0) internal successors, (3400), 4 states have internal predecessors, (3400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:03,254 INFO L175 Difference]: Start difference. First operand has 144 places, 144 transitions, 332 flow. Second operand 3 states and 1411 transitions. [2023-08-31 21:37:03,254 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 173 transitions, 594 flow [2023-08-31 21:37:03,258 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 173 transitions, 590 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-31 21:37:03,260 INFO L231 Difference]: Finished difference. Result has 142 places, 142 transitions, 338 flow [2023-08-31 21:37:03,260 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=850, PETRI_DIFFERENCE_MINUEND_FLOW=322, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=338, PETRI_PLACES=142, PETRI_TRANSITIONS=142} [2023-08-31 21:37:03,261 INFO L281 CegarLoopForPetriNet]: 173 programPoint places, -31 predicate places. [2023-08-31 21:37:03,261 INFO L495 AbstractCegarLoop]: Abstraction has has 142 places, 142 transitions, 338 flow [2023-08-31 21:37:03,261 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 444.3333333333333) internal successors, (1333), 3 states have internal predecessors, (1333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:03,262 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:37:03,262 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:37:03,262 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-31 21:37:03,262 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread2Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2023-08-31 21:37:03,262 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:37:03,263 INFO L85 PathProgramCache]: Analyzing trace with hash -1238618328, now seen corresponding path program 1 times [2023-08-31 21:37:03,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:37:03,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943724370] [2023-08-31 21:37:03,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:37:03,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:37:03,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:37:03,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:37:03,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:37:03,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943724370] [2023-08-31 21:37:03,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [943724370] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:37:03,288 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:37:03,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 21:37:03,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850216522] [2023-08-31 21:37:03,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:37:03,289 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 21:37:03,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:37:03,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 21:37:03,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 21:37:03,302 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 441 out of 850 [2023-08-31 21:37:03,303 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 142 transitions, 338 flow. Second operand has 3 states, 3 states have (on average 445.0) internal successors, (1335), 3 states have internal predecessors, (1335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:03,304 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:37:03,304 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 441 of 850 [2023-08-31 21:37:03,304 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:37:03,738 INFO L130 PetriNetUnfolder]: 1828/4996 cut-off events. [2023-08-31 21:37:03,738 INFO L131 PetriNetUnfolder]: For 547/554 co-relation queries the response was YES. [2023-08-31 21:37:03,755 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8612 conditions, 4996 events. 1828/4996 cut-off events. For 547/554 co-relation queries the response was YES. Maximal size of possible extension queue 162. Compared 40233 event pairs, 361 based on Foata normal form. 0/4387 useless extension candidates. Maximal degree in co-relation 8604. Up to 1993 conditions per place. [2023-08-31 21:37:03,772 INFO L137 encePairwiseOnDemand]: 844/850 looper letters, 86 selfloop transitions, 2 changer transitions 0/170 dead transitions. [2023-08-31 21:37:03,772 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 170 transitions, 595 flow [2023-08-31 21:37:03,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 21:37:03,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 21:37:03,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1408 transitions. [2023-08-31 21:37:03,776 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.552156862745098 [2023-08-31 21:37:03,776 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1408 transitions. [2023-08-31 21:37:03,776 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1408 transitions. [2023-08-31 21:37:03,777 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:37:03,777 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1408 transitions. [2023-08-31 21:37:03,780 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 469.3333333333333) internal successors, (1408), 3 states have internal predecessors, (1408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:03,783 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 850.0) internal successors, (3400), 4 states have internal predecessors, (3400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:03,784 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 850.0) internal successors, (3400), 4 states have internal predecessors, (3400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:03,784 INFO L175 Difference]: Start difference. First operand has 142 places, 142 transitions, 338 flow. Second operand 3 states and 1408 transitions. [2023-08-31 21:37:03,785 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 170 transitions, 595 flow [2023-08-31 21:37:03,788 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 170 transitions, 595 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 21:37:03,791 INFO L231 Difference]: Finished difference. Result has 141 places, 140 transitions, 346 flow [2023-08-31 21:37:03,792 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=850, PETRI_DIFFERENCE_MINUEND_FLOW=330, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=136, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=346, PETRI_PLACES=141, PETRI_TRANSITIONS=140} [2023-08-31 21:37:03,793 INFO L281 CegarLoopForPetriNet]: 173 programPoint places, -32 predicate places. [2023-08-31 21:37:03,793 INFO L495 AbstractCegarLoop]: Abstraction has has 141 places, 140 transitions, 346 flow [2023-08-31 21:37:03,794 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 445.0) internal successors, (1335), 3 states have internal predecessors, (1335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:03,794 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:37:03,794 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:37:03,794 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-31 21:37:03,794 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2023-08-31 21:37:03,795 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:37:03,795 INFO L85 PathProgramCache]: Analyzing trace with hash 1022349609, now seen corresponding path program 1 times [2023-08-31 21:37:03,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:37:03,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039166550] [2023-08-31 21:37:03,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:37:03,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:37:03,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:37:03,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:37:03,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:37:03,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039166550] [2023-08-31 21:37:03,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2039166550] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:37:03,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:37:03,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-31 21:37:03,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176386256] [2023-08-31 21:37:03,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:37:03,922 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-31 21:37:03,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:37:03,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-31 21:37:03,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-31 21:37:04,081 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 442 out of 850 [2023-08-31 21:37:04,083 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 140 transitions, 346 flow. Second operand has 5 states, 5 states have (on average 443.8) internal successors, (2219), 5 states have internal predecessors, (2219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:04,083 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:37:04,083 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 442 of 850 [2023-08-31 21:37:04,083 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:37:04,739 INFO L130 PetriNetUnfolder]: 2533/7033 cut-off events. [2023-08-31 21:37:04,740 INFO L131 PetriNetUnfolder]: For 1008/1026 co-relation queries the response was YES. [2023-08-31 21:37:04,762 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12430 conditions, 7033 events. 2533/7033 cut-off events. For 1008/1026 co-relation queries the response was YES. Maximal size of possible extension queue 231. Compared 63485 event pairs, 1182 based on Foata normal form. 58/6222 useless extension candidates. Maximal degree in co-relation 12421. Up to 2296 conditions per place. [2023-08-31 21:37:04,787 INFO L137 encePairwiseOnDemand]: 845/850 looper letters, 118 selfloop transitions, 4 changer transitions 0/210 dead transitions. [2023-08-31 21:37:04,787 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 210 transitions, 782 flow [2023-08-31 21:37:04,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-31 21:37:04,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-31 21:37:04,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 2321 transitions. [2023-08-31 21:37:04,793 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5461176470588235 [2023-08-31 21:37:04,794 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 2321 transitions. [2023-08-31 21:37:04,794 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 2321 transitions. [2023-08-31 21:37:04,795 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:37:04,795 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 2321 transitions. [2023-08-31 21:37:04,799 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 464.2) internal successors, (2321), 5 states have internal predecessors, (2321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:04,804 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 850.0) internal successors, (5100), 6 states have internal predecessors, (5100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:04,805 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 850.0) internal successors, (5100), 6 states have internal predecessors, (5100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:04,805 INFO L175 Difference]: Start difference. First operand has 141 places, 140 transitions, 346 flow. Second operand 5 states and 2321 transitions. [2023-08-31 21:37:04,806 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 210 transitions, 782 flow [2023-08-31 21:37:04,813 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 210 transitions, 782 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 21:37:04,815 INFO L231 Difference]: Finished difference. Result has 148 places, 143 transitions, 375 flow [2023-08-31 21:37:04,816 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=850, PETRI_DIFFERENCE_MINUEND_FLOW=346, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=136, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=375, PETRI_PLACES=148, PETRI_TRANSITIONS=143} [2023-08-31 21:37:04,816 INFO L281 CegarLoopForPetriNet]: 173 programPoint places, -25 predicate places. [2023-08-31 21:37:04,816 INFO L495 AbstractCegarLoop]: Abstraction has has 148 places, 143 transitions, 375 flow [2023-08-31 21:37:04,817 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 443.8) internal successors, (2219), 5 states have internal predecessors, (2219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:04,817 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:37:04,817 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:37:04,818 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-31 21:37:04,818 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread1Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2023-08-31 21:37:04,818 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:37:04,818 INFO L85 PathProgramCache]: Analyzing trace with hash -1194172968, now seen corresponding path program 1 times [2023-08-31 21:37:04,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:37:04,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689396552] [2023-08-31 21:37:04,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:37:04,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:37:04,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:37:04,931 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-31 21:37:04,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:37:04,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689396552] [2023-08-31 21:37:04,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [689396552] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:37:04,932 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:37:04,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-31 21:37:04,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702958763] [2023-08-31 21:37:04,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:37:04,933 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 21:37:04,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:37:04,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 21:37:04,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-08-31 21:37:05,141 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 434 out of 850 [2023-08-31 21:37:05,143 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 143 transitions, 375 flow. Second operand has 6 states, 6 states have (on average 435.6666666666667) internal successors, (2614), 6 states have internal predecessors, (2614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:05,143 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:37:05,143 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 434 of 850 [2023-08-31 21:37:05,143 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:37:06,250 INFO L130 PetriNetUnfolder]: 4772/12790 cut-off events. [2023-08-31 21:37:06,250 INFO L131 PetriNetUnfolder]: For 2450/2512 co-relation queries the response was YES. [2023-08-31 21:37:06,297 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23496 conditions, 12790 events. 4772/12790 cut-off events. For 2450/2512 co-relation queries the response was YES. Maximal size of possible extension queue 403. Compared 127299 event pairs, 1998 based on Foata normal form. 76/11542 useless extension candidates. Maximal degree in co-relation 23483. Up to 3612 conditions per place. [2023-08-31 21:37:06,337 INFO L137 encePairwiseOnDemand]: 842/850 looper letters, 165 selfloop transitions, 12 changer transitions 0/265 dead transitions. [2023-08-31 21:37:06,337 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 154 places, 265 transitions, 1070 flow [2023-08-31 21:37:06,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-31 21:37:06,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-31 21:37:06,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 3196 transitions. [2023-08-31 21:37:06,345 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5371428571428571 [2023-08-31 21:37:06,345 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 3196 transitions. [2023-08-31 21:37:06,345 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 3196 transitions. [2023-08-31 21:37:06,346 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:37:06,347 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 3196 transitions. [2023-08-31 21:37:06,352 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 456.57142857142856) internal successors, (3196), 7 states have internal predecessors, (3196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:06,358 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 850.0) internal successors, (6800), 8 states have internal predecessors, (6800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:06,360 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 850.0) internal successors, (6800), 8 states have internal predecessors, (6800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:06,360 INFO L175 Difference]: Start difference. First operand has 148 places, 143 transitions, 375 flow. Second operand 7 states and 3196 transitions. [2023-08-31 21:37:06,360 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 154 places, 265 transitions, 1070 flow [2023-08-31 21:37:06,383 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 265 transitions, 1066 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-08-31 21:37:06,386 INFO L231 Difference]: Finished difference. Result has 157 places, 151 transitions, 456 flow [2023-08-31 21:37:06,387 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=850, PETRI_DIFFERENCE_MINUEND_FLOW=371, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=143, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=456, PETRI_PLACES=157, PETRI_TRANSITIONS=151} [2023-08-31 21:37:06,388 INFO L281 CegarLoopForPetriNet]: 173 programPoint places, -16 predicate places. [2023-08-31 21:37:06,388 INFO L495 AbstractCegarLoop]: Abstraction has has 157 places, 151 transitions, 456 flow [2023-08-31 21:37:06,389 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 435.6666666666667) internal successors, (2614), 6 states have internal predecessors, (2614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:06,389 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:37:06,389 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:37:06,390 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-31 21:37:06,390 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2023-08-31 21:37:06,390 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:37:06,390 INFO L85 PathProgramCache]: Analyzing trace with hash 1957085854, now seen corresponding path program 1 times [2023-08-31 21:37:06,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:37:06,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081457160] [2023-08-31 21:37:06,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:37:06,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:37:06,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:37:06,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:37:06,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:37:06,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081457160] [2023-08-31 21:37:06,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2081457160] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:37:06,506 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:37:06,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 21:37:06,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871038093] [2023-08-31 21:37:06,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:37:06,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 21:37:06,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:37:06,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 21:37:06,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-08-31 21:37:06,733 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 434 out of 850 [2023-08-31 21:37:06,735 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 151 transitions, 456 flow. Second operand has 6 states, 6 states have (on average 436.0) internal successors, (2616), 6 states have internal predecessors, (2616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:06,735 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:37:06,735 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 434 of 850 [2023-08-31 21:37:06,735 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:37:07,658 INFO L130 PetriNetUnfolder]: 3584/9636 cut-off events. [2023-08-31 21:37:07,658 INFO L131 PetriNetUnfolder]: For 4333/4375 co-relation queries the response was YES. [2023-08-31 21:37:07,695 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18887 conditions, 9636 events. 3584/9636 cut-off events. For 4333/4375 co-relation queries the response was YES. Maximal size of possible extension queue 299. Compared 89883 event pairs, 1854 based on Foata normal form. 52/8689 useless extension candidates. Maximal degree in co-relation 18870. Up to 3980 conditions per place. [2023-08-31 21:37:07,729 INFO L137 encePairwiseOnDemand]: 842/850 looper letters, 142 selfloop transitions, 10 changer transitions 0/240 dead transitions. [2023-08-31 21:37:07,729 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 163 places, 240 transitions, 1126 flow [2023-08-31 21:37:07,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-31 21:37:07,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-31 21:37:07,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 3158 transitions. [2023-08-31 21:37:07,737 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5307563025210084 [2023-08-31 21:37:07,737 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 3158 transitions. [2023-08-31 21:37:07,738 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 3158 transitions. [2023-08-31 21:37:07,739 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:37:07,739 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 3158 transitions. [2023-08-31 21:37:07,744 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 451.14285714285717) internal successors, (3158), 7 states have internal predecessors, (3158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:07,752 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 850.0) internal successors, (6800), 8 states have internal predecessors, (6800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:07,753 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 850.0) internal successors, (6800), 8 states have internal predecessors, (6800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:07,753 INFO L175 Difference]: Start difference. First operand has 157 places, 151 transitions, 456 flow. Second operand 7 states and 3158 transitions. [2023-08-31 21:37:07,753 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 163 places, 240 transitions, 1126 flow [2023-08-31 21:37:07,766 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 163 places, 240 transitions, 1122 flow, removed 2 selfloop flow, removed 0 redundant places. [2023-08-31 21:37:07,769 INFO L231 Difference]: Finished difference. Result has 166 places, 156 transitions, 509 flow [2023-08-31 21:37:07,769 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=850, PETRI_DIFFERENCE_MINUEND_FLOW=454, PETRI_DIFFERENCE_MINUEND_PLACES=157, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=151, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=143, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=509, PETRI_PLACES=166, PETRI_TRANSITIONS=156} [2023-08-31 21:37:07,770 INFO L281 CegarLoopForPetriNet]: 173 programPoint places, -7 predicate places. [2023-08-31 21:37:07,770 INFO L495 AbstractCegarLoop]: Abstraction has has 166 places, 156 transitions, 509 flow [2023-08-31 21:37:07,771 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 436.0) internal successors, (2616), 6 states have internal predecessors, (2616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:07,771 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:37:07,771 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:37:07,771 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-31 21:37:07,771 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2023-08-31 21:37:07,772 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:37:07,772 INFO L85 PathProgramCache]: Analyzing trace with hash -1480564338, now seen corresponding path program 1 times [2023-08-31 21:37:07,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:37:07,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855174187] [2023-08-31 21:37:07,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:37:07,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:37:07,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:37:08,081 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-31 21:37:08,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:37:08,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855174187] [2023-08-31 21:37:08,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1855174187] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:37:08,082 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:37:08,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 21:37:08,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544337465] [2023-08-31 21:37:08,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:37:08,083 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 21:37:08,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:37:08,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 21:37:08,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 21:37:08,527 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 430 out of 850 [2023-08-31 21:37:08,529 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 166 places, 156 transitions, 509 flow. Second operand has 6 states, 6 states have (on average 432.6666666666667) internal successors, (2596), 6 states have internal predecessors, (2596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:08,529 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:37:08,530 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 430 of 850 [2023-08-31 21:37:08,530 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:37:09,509 INFO L130 PetriNetUnfolder]: 4627/11546 cut-off events. [2023-08-31 21:37:09,509 INFO L131 PetriNetUnfolder]: For 6667/6689 co-relation queries the response was YES. [2023-08-31 21:37:09,567 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23981 conditions, 11546 events. 4627/11546 cut-off events. For 6667/6689 co-relation queries the response was YES. Maximal size of possible extension queue 315. Compared 104875 event pairs, 2206 based on Foata normal form. 0/10585 useless extension candidates. Maximal degree in co-relation 23960. Up to 5448 conditions per place. [2023-08-31 21:37:09,598 INFO L137 encePairwiseOnDemand]: 843/850 looper letters, 178 selfloop transitions, 5 changer transitions 0/259 dead transitions. [2023-08-31 21:37:09,598 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 259 transitions, 1202 flow [2023-08-31 21:37:09,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 21:37:09,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 21:37:09,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2735 transitions. [2023-08-31 21:37:09,605 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5362745098039216 [2023-08-31 21:37:09,605 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2735 transitions. [2023-08-31 21:37:09,605 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2735 transitions. [2023-08-31 21:37:09,607 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:37:09,607 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2735 transitions. [2023-08-31 21:37:09,612 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 455.8333333333333) internal successors, (2735), 6 states have internal predecessors, (2735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:09,617 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 850.0) internal successors, (5950), 7 states have internal predecessors, (5950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:09,618 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 850.0) internal successors, (5950), 7 states have internal predecessors, (5950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:09,618 INFO L175 Difference]: Start difference. First operand has 166 places, 156 transitions, 509 flow. Second operand 6 states and 2735 transitions. [2023-08-31 21:37:09,619 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 259 transitions, 1202 flow [2023-08-31 21:37:09,641 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 168 places, 259 transitions, 1199 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-31 21:37:09,643 INFO L231 Difference]: Finished difference. Result has 168 places, 154 transitions, 512 flow [2023-08-31 21:37:09,644 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=850, PETRI_DIFFERENCE_MINUEND_FLOW=502, PETRI_DIFFERENCE_MINUEND_PLACES=163, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=154, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=149, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=512, PETRI_PLACES=168, PETRI_TRANSITIONS=154} [2023-08-31 21:37:09,644 INFO L281 CegarLoopForPetriNet]: 173 programPoint places, -5 predicate places. [2023-08-31 21:37:09,644 INFO L495 AbstractCegarLoop]: Abstraction has has 168 places, 154 transitions, 512 flow [2023-08-31 21:37:09,645 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 432.6666666666667) internal successors, (2596), 6 states have internal predecessors, (2596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:09,645 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:37:09,646 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:37:09,646 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-31 21:37:09,646 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thread2Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2023-08-31 21:37:09,646 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:37:09,646 INFO L85 PathProgramCache]: Analyzing trace with hash 1964362703, now seen corresponding path program 1 times [2023-08-31 21:37:09,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:37:09,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722969826] [2023-08-31 21:37:09,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:37:09,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:37:09,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:37:09,737 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-31 21:37:09,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:37:09,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722969826] [2023-08-31 21:37:09,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722969826] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:37:09,737 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:37:09,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 21:37:09,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521684803] [2023-08-31 21:37:09,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:37:09,738 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-31 21:37:09,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:37:09,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-31 21:37:09,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-31 21:37:09,905 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 442 out of 850 [2023-08-31 21:37:09,906 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 154 transitions, 512 flow. Second operand has 5 states, 5 states have (on average 444.6) internal successors, (2223), 5 states have internal predecessors, (2223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:09,907 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:37:09,907 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 442 of 850 [2023-08-31 21:37:09,907 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:37:10,512 INFO L130 PetriNetUnfolder]: 2871/7916 cut-off events. [2023-08-31 21:37:10,512 INFO L131 PetriNetUnfolder]: For 4199/4237 co-relation queries the response was YES. [2023-08-31 21:37:10,550 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16176 conditions, 7916 events. 2871/7916 cut-off events. For 4199/4237 co-relation queries the response was YES. Maximal size of possible extension queue 271. Compared 69400 event pairs, 1608 based on Foata normal form. 52/7273 useless extension candidates. Maximal degree in co-relation 16154. Up to 3349 conditions per place. [2023-08-31 21:37:10,569 INFO L137 encePairwiseOnDemand]: 845/850 looper letters, 105 selfloop transitions, 6 changer transitions 0/197 dead transitions. [2023-08-31 21:37:10,569 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 172 places, 197 transitions, 902 flow [2023-08-31 21:37:10,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-31 21:37:10,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-31 21:37:10,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 2299 transitions. [2023-08-31 21:37:10,574 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5409411764705883 [2023-08-31 21:37:10,575 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 2299 transitions. [2023-08-31 21:37:10,575 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 2299 transitions. [2023-08-31 21:37:10,576 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:37:10,576 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 2299 transitions. [2023-08-31 21:37:10,579 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 459.8) internal successors, (2299), 5 states have internal predecessors, (2299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:10,583 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 850.0) internal successors, (5100), 6 states have internal predecessors, (5100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:10,584 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 850.0) internal successors, (5100), 6 states have internal predecessors, (5100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:10,584 INFO L175 Difference]: Start difference. First operand has 168 places, 154 transitions, 512 flow. Second operand 5 states and 2299 transitions. [2023-08-31 21:37:10,585 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 172 places, 197 transitions, 902 flow [2023-08-31 21:37:10,602 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 167 places, 197 transitions, 892 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-31 21:37:10,604 INFO L231 Difference]: Finished difference. Result has 169 places, 156 transitions, 535 flow [2023-08-31 21:37:10,605 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=850, PETRI_DIFFERENCE_MINUEND_FLOW=502, PETRI_DIFFERENCE_MINUEND_PLACES=163, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=154, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=148, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=535, PETRI_PLACES=169, PETRI_TRANSITIONS=156} [2023-08-31 21:37:10,605 INFO L281 CegarLoopForPetriNet]: 173 programPoint places, -4 predicate places. [2023-08-31 21:37:10,605 INFO L495 AbstractCegarLoop]: Abstraction has has 169 places, 156 transitions, 535 flow [2023-08-31 21:37:10,606 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 444.6) internal successors, (2223), 5 states have internal predecessors, (2223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:10,606 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:37:10,606 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:37:10,607 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-08-31 21:37:10,607 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting thread2Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2023-08-31 21:37:10,607 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:37:10,607 INFO L85 PathProgramCache]: Analyzing trace with hash 1676164825, now seen corresponding path program 1 times [2023-08-31 21:37:10,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:37:10,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574492286] [2023-08-31 21:37:10,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:37:10,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:37:10,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:37:10,866 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-31 21:37:10,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:37:10,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574492286] [2023-08-31 21:37:10,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1574492286] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:37:10,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:37:10,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 21:37:10,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926344101] [2023-08-31 21:37:10,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:37:10,867 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 21:37:10,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:37:10,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 21:37:10,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 21:37:11,242 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 430 out of 850 [2023-08-31 21:37:11,245 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 169 places, 156 transitions, 535 flow. Second operand has 6 states, 6 states have (on average 433.1666666666667) internal successors, (2599), 6 states have internal predecessors, (2599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:11,245 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:37:11,245 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 430 of 850 [2023-08-31 21:37:11,245 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:37:12,033 INFO L130 PetriNetUnfolder]: 3446/8161 cut-off events. [2023-08-31 21:37:12,033 INFO L131 PetriNetUnfolder]: For 5608/5630 co-relation queries the response was YES. [2023-08-31 21:37:12,058 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17802 conditions, 8161 events. 3446/8161 cut-off events. For 5608/5630 co-relation queries the response was YES. Maximal size of possible extension queue 290. Compared 69402 event pairs, 1478 based on Foata normal form. 0/7489 useless extension candidates. Maximal degree in co-relation 17778. Up to 3777 conditions per place. [2023-08-31 21:37:12,077 INFO L137 encePairwiseOnDemand]: 843/850 looper letters, 157 selfloop transitions, 5 changer transitions 0/237 dead transitions. [2023-08-31 21:37:12,077 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 172 places, 237 transitions, 1165 flow [2023-08-31 21:37:12,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 21:37:12,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 21:37:12,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2712 transitions. [2023-08-31 21:37:12,083 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5317647058823529 [2023-08-31 21:37:12,083 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2712 transitions. [2023-08-31 21:37:12,083 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2712 transitions. [2023-08-31 21:37:12,085 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:37:12,085 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2712 transitions. [2023-08-31 21:37:12,089 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 452.0) internal successors, (2712), 6 states have internal predecessors, (2712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:12,093 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 850.0) internal successors, (5950), 7 states have internal predecessors, (5950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:12,095 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 850.0) internal successors, (5950), 7 states have internal predecessors, (5950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:12,095 INFO L175 Difference]: Start difference. First operand has 169 places, 156 transitions, 535 flow. Second operand 6 states and 2712 transitions. [2023-08-31 21:37:12,095 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 172 places, 237 transitions, 1165 flow [2023-08-31 21:37:12,113 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 170 places, 237 transitions, 1158 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-31 21:37:12,115 INFO L231 Difference]: Finished difference. Result has 170 places, 154 transitions, 534 flow [2023-08-31 21:37:12,115 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=850, PETRI_DIFFERENCE_MINUEND_FLOW=524, PETRI_DIFFERENCE_MINUEND_PLACES=165, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=154, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=149, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=534, PETRI_PLACES=170, PETRI_TRANSITIONS=154} [2023-08-31 21:37:12,116 INFO L281 CegarLoopForPetriNet]: 173 programPoint places, -3 predicate places. [2023-08-31 21:37:12,116 INFO L495 AbstractCegarLoop]: Abstraction has has 170 places, 154 transitions, 534 flow [2023-08-31 21:37:12,117 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 433.1666666666667) internal successors, (2599), 6 states have internal predecessors, (2599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:12,117 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:37:12,117 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:37:12,117 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-08-31 21:37:12,117 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2023-08-31 21:37:12,118 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:37:12,118 INFO L85 PathProgramCache]: Analyzing trace with hash -778634985, now seen corresponding path program 1 times [2023-08-31 21:37:12,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:37:12,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931847757] [2023-08-31 21:37:12,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:37:12,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:37:12,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:37:12,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:37:12,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:37:12,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931847757] [2023-08-31 21:37:12,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [931847757] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:37:12,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:37:12,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-31 21:37:12,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550347810] [2023-08-31 21:37:12,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:37:12,190 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 21:37:12,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:37:12,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 21:37:12,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 21:37:12,195 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 451 out of 850 [2023-08-31 21:37:12,196 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 154 transitions, 534 flow. Second operand has 3 states, 3 states have (on average 455.6666666666667) internal successors, (1367), 3 states have internal predecessors, (1367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:12,197 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:37:12,197 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 451 of 850 [2023-08-31 21:37:12,197 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:37:12,896 INFO L130 PetriNetUnfolder]: 2817/7592 cut-off events. [2023-08-31 21:37:12,896 INFO L131 PetriNetUnfolder]: For 4643/4669 co-relation queries the response was YES. [2023-08-31 21:37:12,921 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15996 conditions, 7592 events. 2817/7592 cut-off events. For 4643/4669 co-relation queries the response was YES. Maximal size of possible extension queue 242. Compared 65467 event pairs, 1228 based on Foata normal form. 0/7099 useless extension candidates. Maximal degree in co-relation 15972. Up to 3845 conditions per place. [2023-08-31 21:37:12,934 INFO L137 encePairwiseOnDemand]: 847/850 looper letters, 104 selfloop transitions, 3 changer transitions 0/191 dead transitions. [2023-08-31 21:37:12,935 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 172 places, 191 transitions, 904 flow [2023-08-31 21:37:12,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 21:37:12,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 21:37:12,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1427 transitions. [2023-08-31 21:37:12,938 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5596078431372549 [2023-08-31 21:37:12,938 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1427 transitions. [2023-08-31 21:37:12,938 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1427 transitions. [2023-08-31 21:37:12,940 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:37:12,940 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1427 transitions. [2023-08-31 21:37:12,942 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 475.6666666666667) internal successors, (1427), 3 states have internal predecessors, (1427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:12,944 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 850.0) internal successors, (3400), 4 states have internal predecessors, (3400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:12,944 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 850.0) internal successors, (3400), 4 states have internal predecessors, (3400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:12,945 INFO L175 Difference]: Start difference. First operand has 170 places, 154 transitions, 534 flow. Second operand 3 states and 1427 transitions. [2023-08-31 21:37:12,945 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 172 places, 191 transitions, 904 flow [2023-08-31 21:37:12,961 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 167 places, 191 transitions, 892 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-31 21:37:12,963 INFO L231 Difference]: Finished difference. Result has 168 places, 154 transitions, 535 flow [2023-08-31 21:37:12,963 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=850, PETRI_DIFFERENCE_MINUEND_FLOW=524, PETRI_DIFFERENCE_MINUEND_PLACES=165, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=154, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=151, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=535, PETRI_PLACES=168, PETRI_TRANSITIONS=154} [2023-08-31 21:37:12,963 INFO L281 CegarLoopForPetriNet]: 173 programPoint places, -5 predicate places. [2023-08-31 21:37:12,964 INFO L495 AbstractCegarLoop]: Abstraction has has 168 places, 154 transitions, 535 flow [2023-08-31 21:37:12,964 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 455.6666666666667) internal successors, (1367), 3 states have internal predecessors, (1367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:12,964 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:37:12,965 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:37:12,965 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-08-31 21:37:12,965 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2023-08-31 21:37:12,965 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:37:12,966 INFO L85 PathProgramCache]: Analyzing trace with hash 776978907, now seen corresponding path program 1 times [2023-08-31 21:37:12,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:37:12,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348034320] [2023-08-31 21:37:12,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:37:12,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:37:12,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:37:13,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 21:37:13,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:37:13,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348034320] [2023-08-31 21:37:13,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1348034320] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:37:13,196 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:37:13,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 21:37:13,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738627982] [2023-08-31 21:37:13,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:37:13,197 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 21:37:13,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:37:13,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 21:37:13,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 21:37:13,599 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 437 out of 850 [2023-08-31 21:37:13,601 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 154 transitions, 535 flow. Second operand has 6 states, 6 states have (on average 439.6666666666667) internal successors, (2638), 6 states have internal predecessors, (2638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:13,601 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:37:13,601 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 437 of 850 [2023-08-31 21:37:13,601 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:37:14,323 INFO L130 PetriNetUnfolder]: 3192/8141 cut-off events. [2023-08-31 21:37:14,323 INFO L131 PetriNetUnfolder]: For 6221/6229 co-relation queries the response was YES. [2023-08-31 21:37:14,341 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17900 conditions, 8141 events. 3192/8141 cut-off events. For 6221/6229 co-relation queries the response was YES. Maximal size of possible extension queue 250. Compared 70220 event pairs, 1870 based on Foata normal form. 0/7685 useless extension candidates. Maximal degree in co-relation 17875. Up to 4208 conditions per place. [2023-08-31 21:37:14,349 INFO L137 encePairwiseOnDemand]: 845/850 looper letters, 106 selfloop transitions, 4 changer transitions 80/269 dead transitions. [2023-08-31 21:37:14,349 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 172 places, 269 transitions, 1445 flow [2023-08-31 21:37:14,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 21:37:14,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 21:37:14,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2753 transitions. [2023-08-31 21:37:14,355 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5398039215686274 [2023-08-31 21:37:14,355 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2753 transitions. [2023-08-31 21:37:14,355 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2753 transitions. [2023-08-31 21:37:14,356 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:37:14,356 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2753 transitions. [2023-08-31 21:37:14,359 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 458.8333333333333) internal successors, (2753), 6 states have internal predecessors, (2753), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:14,362 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 850.0) internal successors, (5950), 7 states have internal predecessors, (5950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:14,363 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 850.0) internal successors, (5950), 7 states have internal predecessors, (5950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:14,363 INFO L175 Difference]: Start difference. First operand has 168 places, 154 transitions, 535 flow. Second operand 6 states and 2753 transitions. [2023-08-31 21:37:14,363 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 172 places, 269 transitions, 1445 flow [2023-08-31 21:37:14,379 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 170 places, 269 transitions, 1439 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-31 21:37:14,382 INFO L231 Difference]: Finished difference. Result has 170 places, 137 transitions, 403 flow [2023-08-31 21:37:14,382 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=850, PETRI_DIFFERENCE_MINUEND_FLOW=527, PETRI_DIFFERENCE_MINUEND_PLACES=165, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=153, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=149, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=403, PETRI_PLACES=170, PETRI_TRANSITIONS=137} [2023-08-31 21:37:14,383 INFO L281 CegarLoopForPetriNet]: 173 programPoint places, -3 predicate places. [2023-08-31 21:37:14,383 INFO L495 AbstractCegarLoop]: Abstraction has has 170 places, 137 transitions, 403 flow [2023-08-31 21:37:14,383 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 439.6666666666667) internal successors, (2638), 6 states have internal predecessors, (2638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:14,384 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:37:14,384 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:37:14,384 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-08-31 21:37:14,384 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting thread1Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2023-08-31 21:37:14,384 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:37:14,385 INFO L85 PathProgramCache]: Analyzing trace with hash -427272012, now seen corresponding path program 1 times [2023-08-31 21:37:14,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:37:14,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686161095] [2023-08-31 21:37:14,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:37:14,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:37:14,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:37:14,632 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-31 21:37:14,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:37:14,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686161095] [2023-08-31 21:37:14,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686161095] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:37:14,633 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:37:14,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 21:37:14,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359894785] [2023-08-31 21:37:14,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:37:14,634 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 21:37:14,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:37:14,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 21:37:14,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 21:37:15,057 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 430 out of 850 [2023-08-31 21:37:15,059 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 137 transitions, 403 flow. Second operand has 6 states, 6 states have (on average 432.6666666666667) internal successors, (2596), 6 states have internal predecessors, (2596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:15,059 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:37:15,059 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 430 of 850 [2023-08-31 21:37:15,059 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:37:15,720 INFO L130 PetriNetUnfolder]: 2179/5307 cut-off events. [2023-08-31 21:37:15,720 INFO L131 PetriNetUnfolder]: For 2564/2565 co-relation queries the response was YES. [2023-08-31 21:37:15,746 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11088 conditions, 5307 events. 2179/5307 cut-off events. For 2564/2565 co-relation queries the response was YES. Maximal size of possible extension queue 151. Compared 40303 event pairs, 815 based on Foata normal form. 0/5082 useless extension candidates. Maximal degree in co-relation 11063. Up to 2069 conditions per place. [2023-08-31 21:37:15,756 INFO L137 encePairwiseOnDemand]: 843/850 looper letters, 113 selfloop transitions, 5 changer transitions 49/235 dead transitions. [2023-08-31 21:37:15,756 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 163 places, 235 transitions, 1034 flow [2023-08-31 21:37:15,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 21:37:15,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 21:37:15,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2732 transitions. [2023-08-31 21:37:15,761 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5356862745098039 [2023-08-31 21:37:15,761 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2732 transitions. [2023-08-31 21:37:15,762 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2732 transitions. [2023-08-31 21:37:15,762 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:37:15,762 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2732 transitions. [2023-08-31 21:37:15,765 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 455.3333333333333) internal successors, (2732), 6 states have internal predecessors, (2732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:15,768 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 850.0) internal successors, (5950), 7 states have internal predecessors, (5950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:15,768 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 850.0) internal successors, (5950), 7 states have internal predecessors, (5950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:15,768 INFO L175 Difference]: Start difference. First operand has 170 places, 137 transitions, 403 flow. Second operand 6 states and 2732 transitions. [2023-08-31 21:37:15,768 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 163 places, 235 transitions, 1034 flow [2023-08-31 21:37:15,776 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 235 transitions, 931 flow, removed 33 selfloop flow, removed 18 redundant places. [2023-08-31 21:37:15,779 INFO L231 Difference]: Finished difference. Result has 145 places, 122 transitions, 332 flow [2023-08-31 21:37:15,779 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=850, PETRI_DIFFERENCE_MINUEND_FLOW=354, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=135, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=332, PETRI_PLACES=145, PETRI_TRANSITIONS=122} [2023-08-31 21:37:15,779 INFO L281 CegarLoopForPetriNet]: 173 programPoint places, -28 predicate places. [2023-08-31 21:37:15,779 INFO L495 AbstractCegarLoop]: Abstraction has has 145 places, 122 transitions, 332 flow [2023-08-31 21:37:15,780 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 432.6666666666667) internal successors, (2596), 6 states have internal predecessors, (2596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:15,780 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 21:37:15,780 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:37:15,780 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-08-31 21:37:15,781 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting thread2Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2023-08-31 21:37:15,781 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 21:37:15,781 INFO L85 PathProgramCache]: Analyzing trace with hash 1877385373, now seen corresponding path program 1 times [2023-08-31 21:37:15,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 21:37:15,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441358141] [2023-08-31 21:37:15,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 21:37:15,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 21:37:15,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 21:37:16,041 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-31 21:37:16,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 21:37:16,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441358141] [2023-08-31 21:37:16,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1441358141] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 21:37:16,042 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 21:37:16,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 21:37:16,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121496821] [2023-08-31 21:37:16,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 21:37:16,043 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 21:37:16,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 21:37:16,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 21:37:16,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 21:37:16,470 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 430 out of 850 [2023-08-31 21:37:16,472 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 122 transitions, 332 flow. Second operand has 6 states, 6 states have (on average 433.1666666666667) internal successors, (2599), 6 states have internal predecessors, (2599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:16,472 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 21:37:16,472 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 430 of 850 [2023-08-31 21:37:16,472 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 21:37:16,895 INFO L130 PetriNetUnfolder]: 1439/3798 cut-off events. [2023-08-31 21:37:16,895 INFO L131 PetriNetUnfolder]: For 686/687 co-relation queries the response was YES. [2023-08-31 21:37:16,904 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7081 conditions, 3798 events. 1439/3798 cut-off events. For 686/687 co-relation queries the response was YES. Maximal size of possible extension queue 109. Compared 28294 event pairs, 520 based on Foata normal form. 35/3616 useless extension candidates. Maximal degree in co-relation 7068. Up to 1287 conditions per place. [2023-08-31 21:37:16,907 INFO L137 encePairwiseOnDemand]: 843/850 looper letters, 0 selfloop transitions, 0 changer transitions 196/196 dead transitions. [2023-08-31 21:37:16,907 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 196 transitions, 812 flow [2023-08-31 21:37:16,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 21:37:16,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 21:37:16,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2699 transitions. [2023-08-31 21:37:16,911 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5292156862745098 [2023-08-31 21:37:16,911 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2699 transitions. [2023-08-31 21:37:16,911 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2699 transitions. [2023-08-31 21:37:16,911 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 21:37:16,911 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2699 transitions. [2023-08-31 21:37:16,914 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 449.8333333333333) internal successors, (2699), 6 states have internal predecessors, (2699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:16,918 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 850.0) internal successors, (5950), 7 states have internal predecessors, (5950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:16,918 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 850.0) internal successors, (5950), 7 states have internal predecessors, (5950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:16,918 INFO L175 Difference]: Start difference. First operand has 145 places, 122 transitions, 332 flow. Second operand 6 states and 2699 transitions. [2023-08-31 21:37:16,918 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 196 transitions, 812 flow [2023-08-31 21:37:16,921 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 196 transitions, 790 flow, removed 2 selfloop flow, removed 6 redundant places. [2023-08-31 21:37:16,923 INFO L231 Difference]: Finished difference. Result has 133 places, 0 transitions, 0 flow [2023-08-31 21:37:16,923 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=850, PETRI_DIFFERENCE_MINUEND_FLOW=314, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=120, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=133, PETRI_TRANSITIONS=0} [2023-08-31 21:37:16,923 INFO L281 CegarLoopForPetriNet]: 173 programPoint places, -40 predicate places. [2023-08-31 21:37:16,924 INFO L495 AbstractCegarLoop]: Abstraction has has 133 places, 0 transitions, 0 flow [2023-08-31 21:37:16,924 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 433.1666666666667) internal successors, (2599), 6 states have internal predecessors, (2599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 21:37:16,926 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (95 of 96 remaining) [2023-08-31 21:37:16,927 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (94 of 96 remaining) [2023-08-31 21:37:16,927 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err16ASSERT_VIOLATIONDATA_RACE (93 of 96 remaining) [2023-08-31 21:37:16,928 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (92 of 96 remaining) [2023-08-31 21:37:16,928 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err17ASSERT_VIOLATIONDATA_RACE (91 of 96 remaining) [2023-08-31 21:37:16,928 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err13ASSERT_VIOLATIONDATA_RACE (90 of 96 remaining) [2023-08-31 21:37:16,929 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err14ASSERT_VIOLATIONDATA_RACE (89 of 96 remaining) [2023-08-31 21:37:16,929 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (88 of 96 remaining) [2023-08-31 21:37:16,930 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err18ASSERT_VIOLATIONDATA_RACE (87 of 96 remaining) [2023-08-31 21:37:16,930 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (86 of 96 remaining) [2023-08-31 21:37:16,930 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err15ASSERT_VIOLATIONDATA_RACE (85 of 96 remaining) [2023-08-31 21:37:16,930 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (84 of 96 remaining) [2023-08-31 21:37:16,931 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (83 of 96 remaining) [2023-08-31 21:37:16,931 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (82 of 96 remaining) [2023-08-31 21:37:16,931 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (81 of 96 remaining) [2023-08-31 21:37:16,931 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONDATA_RACE (80 of 96 remaining) [2023-08-31 21:37:16,932 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONDATA_RACE (79 of 96 remaining) [2023-08-31 21:37:16,932 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err11ASSERT_VIOLATIONDATA_RACE (78 of 96 remaining) [2023-08-31 21:37:16,932 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err12ASSERT_VIOLATIONDATA_RACE (77 of 96 remaining) [2023-08-31 21:37:16,932 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (76 of 96 remaining) [2023-08-31 21:37:16,933 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (75 of 96 remaining) [2023-08-31 21:37:16,933 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err16ASSERT_VIOLATIONDATA_RACE (74 of 96 remaining) [2023-08-31 21:37:16,933 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (73 of 96 remaining) [2023-08-31 21:37:16,933 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err17ASSERT_VIOLATIONDATA_RACE (72 of 96 remaining) [2023-08-31 21:37:16,933 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err13ASSERT_VIOLATIONDATA_RACE (71 of 96 remaining) [2023-08-31 21:37:16,934 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err14ASSERT_VIOLATIONDATA_RACE (70 of 96 remaining) [2023-08-31 21:37:16,934 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (69 of 96 remaining) [2023-08-31 21:37:16,934 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err18ASSERT_VIOLATIONDATA_RACE (68 of 96 remaining) [2023-08-31 21:37:16,935 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (67 of 96 remaining) [2023-08-31 21:37:16,935 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err15ASSERT_VIOLATIONDATA_RACE (66 of 96 remaining) [2023-08-31 21:37:16,935 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (65 of 96 remaining) [2023-08-31 21:37:16,935 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (64 of 96 remaining) [2023-08-31 21:37:16,935 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (63 of 96 remaining) [2023-08-31 21:37:16,936 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (62 of 96 remaining) [2023-08-31 21:37:16,936 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (61 of 96 remaining) [2023-08-31 21:37:16,936 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONDATA_RACE (60 of 96 remaining) [2023-08-31 21:37:16,936 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONDATA_RACE (59 of 96 remaining) [2023-08-31 21:37:16,936 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err12ASSERT_VIOLATIONDATA_RACE (58 of 96 remaining) [2023-08-31 21:37:16,937 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (57 of 96 remaining) [2023-08-31 21:37:16,937 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (56 of 96 remaining) [2023-08-31 21:37:16,937 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (55 of 96 remaining) [2023-08-31 21:37:16,937 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (54 of 96 remaining) [2023-08-31 21:37:16,937 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (53 of 96 remaining) [2023-08-31 21:37:16,937 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (52 of 96 remaining) [2023-08-31 21:37:16,937 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (51 of 96 remaining) [2023-08-31 21:37:16,937 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (50 of 96 remaining) [2023-08-31 21:37:16,937 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (49 of 96 remaining) [2023-08-31 21:37:16,938 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (48 of 96 remaining) [2023-08-31 21:37:16,938 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (47 of 96 remaining) [2023-08-31 21:37:16,938 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (46 of 96 remaining) [2023-08-31 21:37:16,938 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (45 of 96 remaining) [2023-08-31 21:37:16,939 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (44 of 96 remaining) [2023-08-31 21:37:16,939 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (43 of 96 remaining) [2023-08-31 21:37:16,939 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE (42 of 96 remaining) [2023-08-31 21:37:16,939 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE (41 of 96 remaining) [2023-08-31 21:37:16,939 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE (40 of 96 remaining) [2023-08-31 21:37:16,939 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (39 of 96 remaining) [2023-08-31 21:37:16,939 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (38 of 96 remaining) [2023-08-31 21:37:16,939 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (37 of 96 remaining) [2023-08-31 21:37:16,939 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (36 of 96 remaining) [2023-08-31 21:37:16,940 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err16ASSERT_VIOLATIONDATA_RACE (35 of 96 remaining) [2023-08-31 21:37:16,940 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (34 of 96 remaining) [2023-08-31 21:37:16,940 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err17ASSERT_VIOLATIONDATA_RACE (33 of 96 remaining) [2023-08-31 21:37:16,940 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err13ASSERT_VIOLATIONDATA_RACE (32 of 96 remaining) [2023-08-31 21:37:16,940 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err14ASSERT_VIOLATIONDATA_RACE (31 of 96 remaining) [2023-08-31 21:37:16,940 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (30 of 96 remaining) [2023-08-31 21:37:16,940 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err18ASSERT_VIOLATIONDATA_RACE (29 of 96 remaining) [2023-08-31 21:37:16,941 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (28 of 96 remaining) [2023-08-31 21:37:16,941 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err15ASSERT_VIOLATIONDATA_RACE (27 of 96 remaining) [2023-08-31 21:37:16,941 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (26 of 96 remaining) [2023-08-31 21:37:16,941 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (25 of 96 remaining) [2023-08-31 21:37:16,941 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (24 of 96 remaining) [2023-08-31 21:37:16,942 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (23 of 96 remaining) [2023-08-31 21:37:16,942 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONDATA_RACE (22 of 96 remaining) [2023-08-31 21:37:16,942 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONDATA_RACE (21 of 96 remaining) [2023-08-31 21:37:16,942 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err11ASSERT_VIOLATIONDATA_RACE (20 of 96 remaining) [2023-08-31 21:37:16,942 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err12ASSERT_VIOLATIONDATA_RACE (19 of 96 remaining) [2023-08-31 21:37:16,943 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (18 of 96 remaining) [2023-08-31 21:37:16,943 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (17 of 96 remaining) [2023-08-31 21:37:16,943 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err16ASSERT_VIOLATIONDATA_RACE (16 of 96 remaining) [2023-08-31 21:37:16,943 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (15 of 96 remaining) [2023-08-31 21:37:16,943 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err17ASSERT_VIOLATIONDATA_RACE (14 of 96 remaining) [2023-08-31 21:37:16,944 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err13ASSERT_VIOLATIONDATA_RACE (13 of 96 remaining) [2023-08-31 21:37:16,944 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err14ASSERT_VIOLATIONDATA_RACE (12 of 96 remaining) [2023-08-31 21:37:16,944 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (11 of 96 remaining) [2023-08-31 21:37:16,944 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err18ASSERT_VIOLATIONDATA_RACE (10 of 96 remaining) [2023-08-31 21:37:16,945 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (9 of 96 remaining) [2023-08-31 21:37:16,945 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err15ASSERT_VIOLATIONDATA_RACE (8 of 96 remaining) [2023-08-31 21:37:16,945 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (7 of 96 remaining) [2023-08-31 21:37:16,945 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (6 of 96 remaining) [2023-08-31 21:37:16,945 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (5 of 96 remaining) [2023-08-31 21:37:16,946 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (4 of 96 remaining) [2023-08-31 21:37:16,946 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (3 of 96 remaining) [2023-08-31 21:37:16,946 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONDATA_RACE (2 of 96 remaining) [2023-08-31 21:37:16,946 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONDATA_RACE (1 of 96 remaining) [2023-08-31 21:37:16,946 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err12ASSERT_VIOLATIONDATA_RACE (0 of 96 remaining) [2023-08-31 21:37:16,947 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-08-31 21:37:16,947 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 21:37:16,953 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-31 21:37:16,953 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-31 21:37:16,956 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.08 09:37:16 BasicIcfg [2023-08-31 21:37:16,956 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-31 21:37:16,957 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-31 21:37:16,957 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-31 21:37:16,957 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-31 21:37:16,957 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 09:36:48" (3/4) ... [2023-08-31 21:37:16,959 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-31 21:37:16,963 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2023-08-31 21:37:16,964 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2023-08-31 21:37:16,975 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 26 nodes and edges [2023-08-31 21:37:16,976 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-08-31 21:37:16,976 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-31 21:37:16,976 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-31 21:37:17,032 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-31 21:37:17,032 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-31 21:37:17,033 INFO L158 Benchmark]: Toolchain (without parser) took 29525.36ms. Allocated memory was 83.9MB in the beginning and 1.4GB in the end (delta: 1.3GB). Free memory was 64.7MB in the beginning and 1.0GB in the end (delta: -956.0MB). Peak memory consumption was 369.1MB. Max. memory is 16.1GB. [2023-08-31 21:37:17,033 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 62.9MB. Free memory is still 40.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-31 21:37:17,034 INFO L158 Benchmark]: CACSL2BoogieTranslator took 271.72ms. Allocated memory is still 83.9MB. Free memory was 64.4MB in the beginning and 51.7MB in the end (delta: 12.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-08-31 21:37:17,034 INFO L158 Benchmark]: Boogie Procedure Inliner took 68.67ms. Allocated memory is still 83.9MB. Free memory was 51.7MB in the beginning and 49.0MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-31 21:37:17,034 INFO L158 Benchmark]: Boogie Preprocessor took 70.52ms. Allocated memory is still 83.9MB. Free memory was 49.0MB in the beginning and 46.4MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-31 21:37:17,035 INFO L158 Benchmark]: RCFGBuilder took 941.63ms. Allocated memory is still 83.9MB. Free memory was 46.1MB in the beginning and 58.5MB in the end (delta: -12.3MB). Peak memory consumption was 17.1MB. Max. memory is 16.1GB. [2023-08-31 21:37:17,035 INFO L158 Benchmark]: TraceAbstraction took 28090.13ms. Allocated memory was 83.9MB in the beginning and 1.4GB in the end (delta: 1.3GB). Free memory was 58.0MB in the beginning and 1.0GB in the end (delta: -968.0MB). Peak memory consumption was 356.3MB. Max. memory is 16.1GB. [2023-08-31 21:37:17,035 INFO L158 Benchmark]: Witness Printer took 75.84ms. Allocated memory is still 1.4GB. Free memory was 1.0GB in the beginning and 1.0GB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-08-31 21:37:17,037 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 62.9MB. Free memory is still 40.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 271.72ms. Allocated memory is still 83.9MB. Free memory was 64.4MB in the beginning and 51.7MB in the end (delta: 12.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 68.67ms. Allocated memory is still 83.9MB. Free memory was 51.7MB in the beginning and 49.0MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 70.52ms. Allocated memory is still 83.9MB. Free memory was 49.0MB in the beginning and 46.4MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 941.63ms. Allocated memory is still 83.9MB. Free memory was 46.1MB in the beginning and 58.5MB in the end (delta: -12.3MB). Peak memory consumption was 17.1MB. Max. memory is 16.1GB. * TraceAbstraction took 28090.13ms. Allocated memory was 83.9MB in the beginning and 1.4GB in the end (delta: 1.3GB). Free memory was 58.0MB in the beginning and 1.0GB in the end (delta: -968.0MB). Peak memory consumption was 356.3MB. Max. memory is 16.1GB. * Witness Printer took 75.84ms. Allocated memory is still 1.4GB. Free memory was 1.0GB in the beginning and 1.0GB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8.3s, 433 PlacesBefore, 173 PlacesAfterwards, 450 TransitionsBefore, 180 TransitionsAfterwards, 31968 CoEnabledTransitionPairs, 8 FixpointIterations, 218 TrivialSequentialCompositions, 111 ConcurrentSequentialCompositions, 31 TrivialYvCompositions, 10 ConcurrentYvCompositions, 10 ChoiceCompositions, 380 TotalNumberOfCompositions, 235448 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 52185, independent: 49768, independent conditional: 0, independent unconditional: 49768, dependent: 2417, dependent conditional: 0, dependent unconditional: 2417, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 15155, independent: 14816, independent conditional: 0, independent unconditional: 14816, dependent: 339, dependent conditional: 0, dependent unconditional: 339, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 52185, independent: 34952, independent conditional: 0, independent unconditional: 34952, dependent: 2078, dependent conditional: 0, dependent unconditional: 2078, unknown: 15155, unknown conditional: 0, unknown unconditional: 15155] , Statistics on independence cache: Total cache size (in pairs): 3487, Positive cache size: 3294, Positive conditional cache size: 0, Positive unconditional cache size: 3294, Negative cache size: 193, Negative conditional cache size: 0, Negative unconditional cache size: 193, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 60]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 60]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 57]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 57]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 60]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 57]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 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: 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: 68]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 68]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 80]: 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: 80]: 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: 77]: 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: 80]: 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: 77]: 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: 70]: 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: 71]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 71]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 71]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 71]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 89]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 90]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 91]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 92]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 93]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 93]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 116]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 94]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 94]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 116]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 99]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 100]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 102]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 102]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 103]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 103]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 104]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 104]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 659 locations, 96 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: 27.9s, OverallIterations: 20, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 16.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 8.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4335 SdHoareTripleChecker+Valid, 5.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2797 mSDsluCounter, 1172 SdHoareTripleChecker+Invalid, 4.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 868 mSDsCounter, 1117 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 8160 IncrementalHoareTripleChecker+Invalid, 9277 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1117 mSolverCounterUnsat, 304 mSDtfsCounter, 8160 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 81 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=535occurred in iteration=15, InterpolantAutomatonStates: 89, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 343 NumberOfCodeBlocks, 343 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 323 ConstructedInterpolants, 0 QuantifiedInterpolants, 1127 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 20 InterpolantComputations, 20 PerfectInterpolantSequences, 10/10 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 56 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-31 21:37:17,077 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