./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/weaver/popl20-more-sorted.wvr.c --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/weaver/popl20-more-sorted.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 362fd638a164593c63fbfc307f633b7ac4c475762218e6a2237e90d5b6553a84 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-29 03:43:48,690 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 03:43:48,692 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 03:43:48,723 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 03:43:48,726 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 03:43:48,729 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 03:43:48,731 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 03:43:48,733 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 03:43:48,735 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 03:43:48,739 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 03:43:48,740 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 03:43:48,742 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 03:43:48,744 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 03:43:48,745 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 03:43:48,746 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 03:43:48,747 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 03:43:48,748 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 03:43:48,748 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 03:43:48,750 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 03:43:48,753 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 03:43:48,773 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 03:43:48,774 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 03:43:48,775 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 03:43:48,776 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 03:43:48,779 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 03:43:48,780 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 03:43:48,780 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 03:43:48,782 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 03:43:48,782 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 03:43:48,784 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 03:43:48,784 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 03:43:48,786 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 03:43:48,787 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 03:43:48,788 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 03:43:48,788 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 03:43:48,788 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 03:43:48,789 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 03:43:48,789 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 03:43:48,789 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 03:43:48,790 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 03:43:48,790 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 03:43:48,792 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-29 03:43:48,821 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 03:43:48,821 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 03:43:48,822 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 03:43:48,823 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 03:43:48,823 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 03:43:48,824 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 03:43:48,824 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 03:43:48,824 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 03:43:48,824 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 03:43:48,824 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 03:43:48,825 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 03:43:48,825 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 03:43:48,826 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 03:43:48,826 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 03:43:48,826 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 03:43:48,826 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-29 03:43:48,826 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 03:43:48,826 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-29 03:43:48,826 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-29 03:43:48,827 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 03:43:48,827 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-29 03:43:48,827 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 03:43:48,827 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-29 03:43:48,827 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 03:43:48,827 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 03:43:48,828 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 03:43:48,828 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 03:43:48,828 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 03:43:48,828 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 03:43:48,828 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-29 03:43:48,828 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 03:43:48,829 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 03:43:48,829 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 03:43:48,829 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-29 03:43:48,829 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 03:43:48,829 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 03:43:48,829 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 03:43:48,830 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 362fd638a164593c63fbfc307f633b7ac4c475762218e6a2237e90d5b6553a84 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-29 03:43:49,080 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 03:43:49,099 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 03:43:49,102 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 03:43:49,103 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 03:43:49,103 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 03:43:49,104 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-more-sorted.wvr.c [2023-08-29 03:43:50,180 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 03:43:50,440 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 03:43:50,440 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-sorted.wvr.c [2023-08-29 03:43:50,467 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/58503925e/86f144a93b5d40f8a42d8d8810c04b54/FLAG4e1b1079a [2023-08-29 03:43:50,482 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/58503925e/86f144a93b5d40f8a42d8d8810c04b54 [2023-08-29 03:43:50,485 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 03:43:50,486 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 03:43:50,487 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 03:43:50,487 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 03:43:50,489 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 03:43:50,490 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 03:43:50" (1/1) ... [2023-08-29 03:43:50,491 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3fdf9712 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:43:50, skipping insertion in model container [2023-08-29 03:43:50,491 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 03:43:50" (1/1) ... [2023-08-29 03:43:50,496 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 03:43:50,511 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 03:43:50,672 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/popl20-more-sorted.wvr.c[2434,2447] [2023-08-29 03:43:50,684 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 03:43:50,694 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 03:43:50,729 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/popl20-more-sorted.wvr.c[2434,2447] [2023-08-29 03:43:50,742 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 03:43:50,754 INFO L208 MainTranslator]: Completed translation [2023-08-29 03:43:50,755 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:43:50 WrapperNode [2023-08-29 03:43:50,755 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 03:43:50,756 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 03:43:50,756 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 03:43:50,756 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 03:43:50,761 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:43:50" (1/1) ... [2023-08-29 03:43:50,781 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:43:50" (1/1) ... [2023-08-29 03:43:50,803 INFO L138 Inliner]: procedures = 24, calls = 37, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 176 [2023-08-29 03:43:50,803 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 03:43:50,804 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 03:43:50,804 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 03:43:50,804 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 03:43:50,810 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:43:50" (1/1) ... [2023-08-29 03:43:50,810 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:43:50" (1/1) ... [2023-08-29 03:43:50,817 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:43:50" (1/1) ... [2023-08-29 03:43:50,817 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:43:50" (1/1) ... [2023-08-29 03:43:50,826 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:43:50" (1/1) ... [2023-08-29 03:43:50,830 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:43:50" (1/1) ... [2023-08-29 03:43:50,832 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:43:50" (1/1) ... [2023-08-29 03:43:50,833 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:43:50" (1/1) ... [2023-08-29 03:43:50,836 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 03:43:50,836 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 03:43:50,837 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 03:43:50,837 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 03:43:50,837 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:43:50" (1/1) ... [2023-08-29 03:43:50,841 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 03:43:50,850 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 03:43:50,877 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-29 03:43:50,888 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-29 03:43:50,910 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-29 03:43:50,910 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-29 03:43:50,910 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-29 03:43:50,910 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-29 03:43:50,911 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-29 03:43:50,911 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-08-29 03:43:50,911 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-08-29 03:43:50,911 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-29 03:43:50,911 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 03:43:50,911 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-29 03:43:50,911 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-29 03:43:50,911 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 03:43:50,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 03:43:50,912 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-29 03:43:50,912 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 03:43:50,913 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-29 03:43:51,056 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 03:43:51,057 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 03:43:51,420 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 03:43:51,436 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 03:43:51,437 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-08-29 03:43:51,439 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 03:43:51 BoogieIcfgContainer [2023-08-29 03:43:51,439 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 03:43:51,441 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 03:43:51,441 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 03:43:51,444 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 03:43:51,445 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 03:43:50" (1/3) ... [2023-08-29 03:43:51,445 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@519e67c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 03:43:51, skipping insertion in model container [2023-08-29 03:43:51,445 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:43:50" (2/3) ... [2023-08-29 03:43:51,446 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@519e67c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 03:43:51, skipping insertion in model container [2023-08-29 03:43:51,446 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 03:43:51" (3/3) ... [2023-08-29 03:43:51,447 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-sorted.wvr.c [2023-08-29 03:43:51,453 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-29 03:43:51,460 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 03:43:51,460 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 39 error locations. [2023-08-29 03:43:51,460 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 03:43:51,575 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-08-29 03:43:51,613 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 343 places, 350 transitions, 724 flow [2023-08-29 03:43:51,731 INFO L130 PetriNetUnfolder]: 17/347 cut-off events. [2023-08-29 03:43:51,731 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-08-29 03:43:51,739 INFO L83 FinitePrefix]: Finished finitePrefix Result has 360 conditions, 347 events. 17/347 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 720 event pairs, 0 based on Foata normal form. 0/291 useless extension candidates. Maximal degree in co-relation 240. Up to 2 conditions per place. [2023-08-29 03:43:51,740 INFO L82 GeneralOperation]: Start removeDead. Operand has 343 places, 350 transitions, 724 flow [2023-08-29 03:43:51,748 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 322 places, 327 transitions, 672 flow [2023-08-29 03:43:51,751 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 03:43:51,766 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 322 places, 327 transitions, 672 flow [2023-08-29 03:43:51,769 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 322 places, 327 transitions, 672 flow [2023-08-29 03:43:51,770 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 322 places, 327 transitions, 672 flow [2023-08-29 03:43:51,821 INFO L130 PetriNetUnfolder]: 15/327 cut-off events. [2023-08-29 03:43:51,822 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-08-29 03:43:51,826 INFO L83 FinitePrefix]: Finished finitePrefix Result has 340 conditions, 327 events. 15/327 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 706 event pairs, 0 based on Foata normal form. 0/274 useless extension candidates. Maximal degree in co-relation 240. Up to 2 conditions per place. [2023-08-29 03:43:51,834 INFO L119 LiptonReduction]: Number of co-enabled transitions 21474 [2023-08-29 03:43:58,649 INFO L134 LiptonReduction]: Checked pairs total: 137204 [2023-08-29 03:43:58,650 INFO L136 LiptonReduction]: Total number of compositions: 283 [2023-08-29 03:43:58,684 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 03:43:58,690 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;@177af657, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>] [2023-08-29 03:43:58,690 INFO L358 AbstractCegarLoop]: Starting to check reachability of 64 error locations. [2023-08-29 03:43:58,692 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-29 03:43:58,692 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 03:43:58,692 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:43:58,693 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-29 03:43:58,693 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-08-29 03:43:58,697 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:43:58,697 INFO L85 PathProgramCache]: Analyzing trace with hash 1221, now seen corresponding path program 1 times [2023-08-29 03:43:58,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:43:58,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028893032] [2023-08-29 03:43:58,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:43:58,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:43:58,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:43:58,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 03:43:58,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:43:58,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028893032] [2023-08-29 03:43:58,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1028893032] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:43:58,789 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:43:58,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-29 03:43:58,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825294189] [2023-08-29 03:43:58,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:43:58,795 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-29 03:43:58,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:43:58,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-29 03:43:58,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-29 03:43:58,819 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 335 out of 633 [2023-08-29 03:43:58,824 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 133 transitions, 284 flow. Second operand has 2 states, 2 states have (on average 335.5) internal successors, (671), 2 states have internal predecessors, (671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:43:58,824 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:43:58,824 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 335 of 633 [2023-08-29 03:43:58,825 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:43:59,388 INFO L130 PetriNetUnfolder]: 2574/7157 cut-off events. [2023-08-29 03:43:59,388 INFO L131 PetriNetUnfolder]: For 193/193 co-relation queries the response was YES. [2023-08-29 03:43:59,399 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10649 conditions, 7157 events. 2574/7157 cut-off events. For 193/193 co-relation queries the response was YES. Maximal size of possible extension queue 378. Compared 72006 event pairs, 1475 based on Foata normal form. 549/5878 useless extension candidates. Maximal degree in co-relation 9347. Up to 3345 conditions per place. [2023-08-29 03:43:59,424 INFO L137 encePairwiseOnDemand]: 610/633 looper letters, 34 selfloop transitions, 0 changer transitions 1/110 dead transitions. [2023-08-29 03:43:59,424 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 110 transitions, 308 flow [2023-08-29 03:43:59,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-29 03:43:59,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-29 03:43:59,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 728 transitions. [2023-08-29 03:43:59,456 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5750394944707741 [2023-08-29 03:43:59,456 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 728 transitions. [2023-08-29 03:43:59,457 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 728 transitions. [2023-08-29 03:43:59,459 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:43:59,461 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 728 transitions. [2023-08-29 03:43:59,465 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 364.0) internal successors, (728), 2 states have internal predecessors, (728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:43:59,469 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 633.0) internal successors, (1899), 3 states have internal predecessors, (1899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:43:59,470 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 633.0) internal successors, (1899), 3 states have internal predecessors, (1899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:43:59,471 INFO L175 Difference]: Start difference. First operand has 133 places, 133 transitions, 284 flow. Second operand 2 states and 728 transitions. [2023-08-29 03:43:59,471 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 110 transitions, 308 flow [2023-08-29 03:43:59,477 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 110 transitions, 296 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-08-29 03:43:59,479 INFO L231 Difference]: Finished difference. Result has 108 places, 109 transitions, 223 flow [2023-08-29 03:43:59,480 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=633, PETRI_DIFFERENCE_MINUEND_FLOW=226, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=223, PETRI_PLACES=108, PETRI_TRANSITIONS=109} [2023-08-29 03:43:59,483 INFO L281 CegarLoopForPetriNet]: 133 programPoint places, -25 predicate places. [2023-08-29 03:43:59,484 INFO L495 AbstractCegarLoop]: Abstraction has has 108 places, 109 transitions, 223 flow [2023-08-29 03:43:59,484 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 335.5) internal successors, (671), 2 states have internal predecessors, (671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:43:59,484 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:43:59,485 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-29 03:43:59,486 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-29 03:43:59,487 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-08-29 03:43:59,492 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:43:59,492 INFO L85 PathProgramCache]: Analyzing trace with hash -2126243569, now seen corresponding path program 1 times [2023-08-29 03:43:59,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:43:59,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141355224] [2023-08-29 03:43:59,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:43:59,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:43:59,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:43:59,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 03:43:59,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:43:59,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141355224] [2023-08-29 03:43:59,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1141355224] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:43:59,594 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:43:59,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 03:43:59,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132535435] [2023-08-29 03:43:59,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:43:59,595 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 03:43:59,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:43:59,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 03:43:59,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 03:43:59,610 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 322 out of 633 [2023-08-29 03:43:59,612 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 109 transitions, 223 flow. Second operand has 3 states, 3 states have (on average 323.6666666666667) internal successors, (971), 3 states have internal predecessors, (971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:43:59,612 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:43:59,612 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 322 of 633 [2023-08-29 03:43:59,612 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:44:00,054 INFO L130 PetriNetUnfolder]: 2991/6944 cut-off events. [2023-08-29 03:44:00,054 INFO L131 PetriNetUnfolder]: For 63/63 co-relation queries the response was YES. [2023-08-29 03:44:00,063 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10967 conditions, 6944 events. 2991/6944 cut-off events. For 63/63 co-relation queries the response was YES. Maximal size of possible extension queue 367. Compared 61327 event pairs, 1922 based on Foata normal form. 0/5232 useless extension candidates. Maximal degree in co-relation 10964. Up to 3970 conditions per place. [2023-08-29 03:44:00,086 INFO L137 encePairwiseOnDemand]: 630/633 looper letters, 35 selfloop transitions, 1 changer transitions 0/107 dead transitions. [2023-08-29 03:44:00,086 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 107 transitions, 291 flow [2023-08-29 03:44:00,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 03:44:00,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 03:44:00,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1004 transitions. [2023-08-29 03:44:00,089 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5286993154291733 [2023-08-29 03:44:00,089 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1004 transitions. [2023-08-29 03:44:00,089 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1004 transitions. [2023-08-29 03:44:00,089 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:44:00,089 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1004 transitions. [2023-08-29 03:44:00,091 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 334.6666666666667) internal successors, (1004), 3 states have internal predecessors, (1004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:44:00,094 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 633.0) internal successors, (2532), 4 states have internal predecessors, (2532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:44:00,095 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 633.0) internal successors, (2532), 4 states have internal predecessors, (2532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:44:00,095 INFO L175 Difference]: Start difference. First operand has 108 places, 109 transitions, 223 flow. Second operand 3 states and 1004 transitions. [2023-08-29 03:44:00,095 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 107 transitions, 291 flow [2023-08-29 03:44:00,096 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 107 transitions, 291 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 03:44:00,097 INFO L231 Difference]: Finished difference. Result has 107 places, 107 transitions, 221 flow [2023-08-29 03:44:00,097 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=633, PETRI_DIFFERENCE_MINUEND_FLOW=219, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=221, PETRI_PLACES=107, PETRI_TRANSITIONS=107} [2023-08-29 03:44:00,098 INFO L281 CegarLoopForPetriNet]: 133 programPoint places, -26 predicate places. [2023-08-29 03:44:00,098 INFO L495 AbstractCegarLoop]: Abstraction has has 107 places, 107 transitions, 221 flow [2023-08-29 03:44:00,098 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 323.6666666666667) internal successors, (971), 3 states have internal predecessors, (971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:44:00,099 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:44:00,099 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:44:00,099 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-29 03:44:00,099 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-08-29 03:44:00,099 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:44:00,099 INFO L85 PathProgramCache]: Analyzing trace with hash 1084721334, now seen corresponding path program 1 times [2023-08-29 03:44:00,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:44:00,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570699986] [2023-08-29 03:44:00,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:44:00,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:44:00,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:44:00,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 03:44:00,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:44:00,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570699986] [2023-08-29 03:44:00,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1570699986] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:44:00,137 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:44:00,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 03:44:00,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990752244] [2023-08-29 03:44:00,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:44:00,138 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 03:44:00,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:44:00,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 03:44:00,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 03:44:00,156 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 316 out of 633 [2023-08-29 03:44:00,157 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 107 transitions, 221 flow. Second operand has 3 states, 3 states have (on average 318.0) internal successors, (954), 3 states have internal predecessors, (954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:44:00,157 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:44:00,157 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 316 of 633 [2023-08-29 03:44:00,157 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:44:01,046 INFO L130 PetriNetUnfolder]: 6905/15038 cut-off events. [2023-08-29 03:44:01,046 INFO L131 PetriNetUnfolder]: For 117/117 co-relation queries the response was YES. [2023-08-29 03:44:01,067 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24246 conditions, 15038 events. 6905/15038 cut-off events. For 117/117 co-relation queries the response was YES. Maximal size of possible extension queue 580. Compared 141945 event pairs, 1278 based on Foata normal form. 0/11835 useless extension candidates. Maximal degree in co-relation 24242. Up to 7625 conditions per place. [2023-08-29 03:44:01,110 INFO L137 encePairwiseOnDemand]: 624/633 looper letters, 63 selfloop transitions, 3 changer transitions 0/126 dead transitions. [2023-08-29 03:44:01,110 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 126 transitions, 395 flow [2023-08-29 03:44:01,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 03:44:01,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 03:44:01,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1020 transitions. [2023-08-29 03:44:01,113 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5371248025276462 [2023-08-29 03:44:01,113 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1020 transitions. [2023-08-29 03:44:01,113 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1020 transitions. [2023-08-29 03:44:01,113 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:44:01,114 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1020 transitions. [2023-08-29 03:44:01,115 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 340.0) internal successors, (1020), 3 states have internal predecessors, (1020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:44:01,118 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 633.0) internal successors, (2532), 4 states have internal predecessors, (2532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:44:01,119 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 633.0) internal successors, (2532), 4 states have internal predecessors, (2532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:44:01,119 INFO L175 Difference]: Start difference. First operand has 107 places, 107 transitions, 221 flow. Second operand 3 states and 1020 transitions. [2023-08-29 03:44:01,119 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 126 transitions, 395 flow [2023-08-29 03:44:01,120 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 126 transitions, 394 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 03:44:01,121 INFO L231 Difference]: Finished difference. Result has 103 places, 104 transitions, 229 flow [2023-08-29 03:44:01,121 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=633, PETRI_DIFFERENCE_MINUEND_FLOW=208, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=229, PETRI_PLACES=103, PETRI_TRANSITIONS=104} [2023-08-29 03:44:01,122 INFO L281 CegarLoopForPetriNet]: 133 programPoint places, -30 predicate places. [2023-08-29 03:44:01,122 INFO L495 AbstractCegarLoop]: Abstraction has has 103 places, 104 transitions, 229 flow [2023-08-29 03:44:01,123 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 318.0) internal successors, (954), 3 states have internal predecessors, (954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:44:01,123 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:44:01,123 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:44:01,123 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-29 03:44:01,123 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-08-29 03:44:01,124 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:44:01,124 INFO L85 PathProgramCache]: Analyzing trace with hash 1421367791, now seen corresponding path program 1 times [2023-08-29 03:44:01,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:44:01,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84760290] [2023-08-29 03:44:01,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:44:01,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:44:01,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:44:01,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 03:44:01,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:44:01,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84760290] [2023-08-29 03:44:01,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [84760290] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:44:01,188 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:44:01,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 03:44:01,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266430774] [2023-08-29 03:44:01,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:44:01,189 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 03:44:01,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:44:01,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 03:44:01,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 03:44:01,201 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 322 out of 633 [2023-08-29 03:44:01,202 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 104 transitions, 229 flow. Second operand has 3 states, 3 states have (on average 324.3333333333333) internal successors, (973), 3 states have internal predecessors, (973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:44:01,202 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:44:01,202 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 322 of 633 [2023-08-29 03:44:01,202 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:44:01,819 INFO L130 PetriNetUnfolder]: 4562/9187 cut-off events. [2023-08-29 03:44:01,820 INFO L131 PetriNetUnfolder]: For 502/502 co-relation queries the response was YES. [2023-08-29 03:44:01,835 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16197 conditions, 9187 events. 4562/9187 cut-off events. For 502/502 co-relation queries the response was YES. Maximal size of possible extension queue 329. Compared 73361 event pairs, 2803 based on Foata normal form. 0/6889 useless extension candidates. Maximal degree in co-relation 16193. Up to 6059 conditions per place. [2023-08-29 03:44:01,877 INFO L137 encePairwiseOnDemand]: 630/633 looper letters, 38 selfloop transitions, 1 changer transitions 0/102 dead transitions. [2023-08-29 03:44:01,877 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 102 transitions, 303 flow [2023-08-29 03:44:01,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 03:44:01,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 03:44:01,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1004 transitions. [2023-08-29 03:44:01,880 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5286993154291733 [2023-08-29 03:44:01,880 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1004 transitions. [2023-08-29 03:44:01,880 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1004 transitions. [2023-08-29 03:44:01,880 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:44:01,881 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1004 transitions. [2023-08-29 03:44:01,882 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 334.6666666666667) internal successors, (1004), 3 states have internal predecessors, (1004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:44:01,885 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 633.0) internal successors, (2532), 4 states have internal predecessors, (2532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:44:01,886 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 633.0) internal successors, (2532), 4 states have internal predecessors, (2532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:44:01,886 INFO L175 Difference]: Start difference. First operand has 103 places, 104 transitions, 229 flow. Second operand 3 states and 1004 transitions. [2023-08-29 03:44:01,886 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 102 transitions, 303 flow [2023-08-29 03:44:01,887 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 102 transitions, 303 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 03:44:01,888 INFO L231 Difference]: Finished difference. Result has 103 places, 102 transitions, 227 flow [2023-08-29 03:44:01,888 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=633, PETRI_DIFFERENCE_MINUEND_FLOW=225, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=227, PETRI_PLACES=103, PETRI_TRANSITIONS=102} [2023-08-29 03:44:01,889 INFO L281 CegarLoopForPetriNet]: 133 programPoint places, -30 predicate places. [2023-08-29 03:44:01,889 INFO L495 AbstractCegarLoop]: Abstraction has has 103 places, 102 transitions, 227 flow [2023-08-29 03:44:01,889 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 324.3333333333333) internal successors, (973), 3 states have internal predecessors, (973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:44:01,890 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:44:01,890 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:44:01,890 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-29 03:44:01,890 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-08-29 03:44:01,890 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:44:01,890 INFO L85 PathProgramCache]: Analyzing trace with hash 1061850866, now seen corresponding path program 1 times [2023-08-29 03:44:01,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:44:01,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688722959] [2023-08-29 03:44:01,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:44:01,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:44:01,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:44:01,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 03:44:01,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:44:01,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688722959] [2023-08-29 03:44:01,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1688722959] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:44:01,984 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:44:01,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 03:44:01,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441579232] [2023-08-29 03:44:01,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:44:01,984 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 03:44:01,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:44:01,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 03:44:01,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 03:44:02,029 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 330 out of 633 [2023-08-29 03:44:02,031 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 102 transitions, 227 flow. Second operand has 3 states, 3 states have (on average 332.6666666666667) internal successors, (998), 3 states have internal predecessors, (998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:44:02,031 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:44:02,031 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 330 of 633 [2023-08-29 03:44:02,031 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:44:02,509 INFO L130 PetriNetUnfolder]: 3846/8729 cut-off events. [2023-08-29 03:44:02,509 INFO L131 PetriNetUnfolder]: For 479/479 co-relation queries the response was YES. [2023-08-29 03:44:02,527 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14493 conditions, 8729 events. 3846/8729 cut-off events. For 479/479 co-relation queries the response was YES. Maximal size of possible extension queue 350. Compared 78074 event pairs, 2050 based on Foata normal form. 1/6380 useless extension candidates. Maximal degree in co-relation 14488. Up to 4980 conditions per place. [2023-08-29 03:44:02,551 INFO L137 encePairwiseOnDemand]: 630/633 looper letters, 36 selfloop transitions, 2 changer transitions 0/103 dead transitions. [2023-08-29 03:44:02,552 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 103 transitions, 305 flow [2023-08-29 03:44:02,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 03:44:02,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 03:44:02,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1026 transitions. [2023-08-29 03:44:02,554 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5402843601895735 [2023-08-29 03:44:02,554 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1026 transitions. [2023-08-29 03:44:02,554 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1026 transitions. [2023-08-29 03:44:02,555 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:44:02,555 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1026 transitions. [2023-08-29 03:44:02,557 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 342.0) internal successors, (1026), 3 states have internal predecessors, (1026), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:44:02,560 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 633.0) internal successors, (2532), 4 states have internal predecessors, (2532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:44:02,561 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 633.0) internal successors, (2532), 4 states have internal predecessors, (2532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:44:02,561 INFO L175 Difference]: Start difference. First operand has 103 places, 102 transitions, 227 flow. Second operand 3 states and 1026 transitions. [2023-08-29 03:44:02,561 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 103 transitions, 305 flow [2023-08-29 03:44:02,562 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 103 transitions, 304 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 03:44:02,563 INFO L231 Difference]: Finished difference. Result has 105 places, 103 transitions, 238 flow [2023-08-29 03:44:02,563 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=633, PETRI_DIFFERENCE_MINUEND_FLOW=226, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=238, PETRI_PLACES=105, PETRI_TRANSITIONS=103} [2023-08-29 03:44:02,565 INFO L281 CegarLoopForPetriNet]: 133 programPoint places, -28 predicate places. [2023-08-29 03:44:02,565 INFO L495 AbstractCegarLoop]: Abstraction has has 105 places, 103 transitions, 238 flow [2023-08-29 03:44:02,566 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 332.6666666666667) internal successors, (998), 3 states have internal predecessors, (998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:44:02,566 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:44:02,566 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:44:02,566 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-29 03:44:02,566 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-08-29 03:44:02,566 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:44:02,567 INFO L85 PathProgramCache]: Analyzing trace with hash 1716033877, now seen corresponding path program 1 times [2023-08-29 03:44:02,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:44:02,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196304170] [2023-08-29 03:44:02,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:44:02,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:44:02,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:44:02,845 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-29 03:44:02,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:44:02,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196304170] [2023-08-29 03:44:02,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196304170] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:44:02,846 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:44:02,846 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 03:44:02,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352121700] [2023-08-29 03:44:02,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:44:02,847 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 03:44:02,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:44:02,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 03:44:02,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 03:44:03,150 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 322 out of 633 [2023-08-29 03:44:03,152 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 103 transitions, 238 flow. Second operand has 6 states, 6 states have (on average 324.1666666666667) internal successors, (1945), 6 states have internal predecessors, (1945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:44:03,152 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:44:03,152 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 322 of 633 [2023-08-29 03:44:03,152 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:44:04,211 INFO L130 PetriNetUnfolder]: 10770/15857 cut-off events. [2023-08-29 03:44:04,211 INFO L131 PetriNetUnfolder]: For 1199/1199 co-relation queries the response was YES. [2023-08-29 03:44:04,268 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31327 conditions, 15857 events. 10770/15857 cut-off events. For 1199/1199 co-relation queries the response was YES. Maximal size of possible extension queue 589. Compared 101267 event pairs, 792 based on Foata normal form. 0/10552 useless extension candidates. Maximal degree in co-relation 31321. Up to 4880 conditions per place. [2023-08-29 03:44:04,343 INFO L137 encePairwiseOnDemand]: 628/633 looper letters, 134 selfloop transitions, 4 changer transitions 0/198 dead transitions. [2023-08-29 03:44:04,343 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 198 transitions, 764 flow [2023-08-29 03:44:04,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 03:44:04,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 03:44:04,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2055 transitions. [2023-08-29 03:44:04,348 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5410742496050553 [2023-08-29 03:44:04,348 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2055 transitions. [2023-08-29 03:44:04,348 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2055 transitions. [2023-08-29 03:44:04,349 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:44:04,349 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2055 transitions. [2023-08-29 03:44:04,352 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 342.5) internal successors, (2055), 6 states have internal predecessors, (2055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:44:04,358 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 633.0) internal successors, (4431), 7 states have internal predecessors, (4431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:44:04,361 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 633.0) internal successors, (4431), 7 states have internal predecessors, (4431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:44:04,361 INFO L175 Difference]: Start difference. First operand has 105 places, 103 transitions, 238 flow. Second operand 6 states and 2055 transitions. [2023-08-29 03:44:04,361 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 198 transitions, 764 flow [2023-08-29 03:44:04,363 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 198 transitions, 760 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-08-29 03:44:04,366 INFO L231 Difference]: Finished difference. Result has 108 places, 102 transitions, 240 flow [2023-08-29 03:44:04,366 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=633, PETRI_DIFFERENCE_MINUEND_FLOW=232, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=240, PETRI_PLACES=108, PETRI_TRANSITIONS=102} [2023-08-29 03:44:04,369 INFO L281 CegarLoopForPetriNet]: 133 programPoint places, -25 predicate places. [2023-08-29 03:44:04,369 INFO L495 AbstractCegarLoop]: Abstraction has has 108 places, 102 transitions, 240 flow [2023-08-29 03:44:04,370 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 324.1666666666667) internal successors, (1945), 6 states have internal predecessors, (1945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:44:04,370 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:44:04,370 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:44:04,370 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-29 03:44:04,371 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-08-29 03:44:04,371 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:44:04,371 INFO L85 PathProgramCache]: Analyzing trace with hash -696639168, now seen corresponding path program 1 times [2023-08-29 03:44:04,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:44:04,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016978116] [2023-08-29 03:44:04,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:44:04,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:44:04,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:44:04,465 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 03:44:04,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:44:04,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016978116] [2023-08-29 03:44:04,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016978116] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-29 03:44:04,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [463516324] [2023-08-29 03:44:04,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:44:04,467 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 03:44:04,467 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 03:44:04,495 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-29 03:44:04,525 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-08-29 03:44:04,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:44:04,625 INFO L263 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 7 conjunts are in the unsatisfiable core [2023-08-29 03:44:04,628 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 03:44:04,684 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 03:44:04,685 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-29 03:44:04,722 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 03:44:04,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [463516324] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-29 03:44:04,723 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-29 03:44:04,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2023-08-29 03:44:04,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963218422] [2023-08-29 03:44:04,724 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-29 03:44:04,724 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-29 03:44:04,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:44:04,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-29 03:44:04,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2023-08-29 03:44:04,984 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 323 out of 633 [2023-08-29 03:44:04,987 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 102 transitions, 240 flow. Second operand has 12 states, 12 states have (on average 324.4166666666667) internal successors, (3893), 12 states have internal predecessors, (3893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:44:04,987 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:44:04,987 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 323 of 633 [2023-08-29 03:44:04,987 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:44:05,787 INFO L130 PetriNetUnfolder]: 5279/11054 cut-off events. [2023-08-29 03:44:05,788 INFO L131 PetriNetUnfolder]: For 1296/1693 co-relation queries the response was YES. [2023-08-29 03:44:05,811 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20300 conditions, 11054 events. 5279/11054 cut-off events. For 1296/1693 co-relation queries the response was YES. Maximal size of possible extension queue 424. Compared 97167 event pairs, 1623 based on Foata normal form. 43/8460 useless extension candidates. Maximal degree in co-relation 20294. Up to 3361 conditions per place. [2023-08-29 03:44:05,842 INFO L137 encePairwiseOnDemand]: 626/633 looper letters, 108 selfloop transitions, 6 changer transitions 0/177 dead transitions. [2023-08-29 03:44:05,842 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 177 transitions, 668 flow [2023-08-29 03:44:05,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-29 03:44:05,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-29 03:44:05,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2368 transitions. [2023-08-29 03:44:05,846 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5344166102459942 [2023-08-29 03:44:05,847 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2368 transitions. [2023-08-29 03:44:05,847 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2368 transitions. [2023-08-29 03:44:05,847 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:44:05,848 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2368 transitions. [2023-08-29 03:44:05,851 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 338.2857142857143) internal successors, (2368), 7 states have internal predecessors, (2368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:44:05,854 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 633.0) internal successors, (5064), 8 states have internal predecessors, (5064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:44:05,855 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 633.0) internal successors, (5064), 8 states have internal predecessors, (5064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:44:05,855 INFO L175 Difference]: Start difference. First operand has 108 places, 102 transitions, 240 flow. Second operand 7 states and 2368 transitions. [2023-08-29 03:44:05,855 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 177 transitions, 668 flow [2023-08-29 03:44:05,862 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 177 transitions, 655 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-29 03:44:05,863 INFO L231 Difference]: Finished difference. Result has 114 places, 106 transitions, 279 flow [2023-08-29 03:44:05,863 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=633, PETRI_DIFFERENCE_MINUEND_FLOW=233, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=279, PETRI_PLACES=114, PETRI_TRANSITIONS=106} [2023-08-29 03:44:05,864 INFO L281 CegarLoopForPetriNet]: 133 programPoint places, -19 predicate places. [2023-08-29 03:44:05,864 INFO L495 AbstractCegarLoop]: Abstraction has has 114 places, 106 transitions, 279 flow [2023-08-29 03:44:05,865 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 324.4166666666667) internal successors, (3893), 12 states have internal predecessors, (3893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:44:05,865 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:44:05,865 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:44:05,870 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-08-29 03:44:06,069 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 03:44:06,072 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-08-29 03:44:06,072 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:44:06,072 INFO L85 PathProgramCache]: Analyzing trace with hash 1802819581, now seen corresponding path program 2 times [2023-08-29 03:44:06,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:44:06,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847036934] [2023-08-29 03:44:06,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:44:06,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:44:06,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:44:06,252 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-29 03:44:06,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:44:06,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847036934] [2023-08-29 03:44:06,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [847036934] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:44:06,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:44:06,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 03:44:06,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509377039] [2023-08-29 03:44:06,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:44:06,254 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 03:44:06,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:44:06,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 03:44:06,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 03:44:06,600 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 321 out of 633 [2023-08-29 03:44:06,602 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 106 transitions, 279 flow. Second operand has 6 states, 6 states have (on average 323.0) internal successors, (1938), 6 states have internal predecessors, (1938), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:44:06,602 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:44:06,602 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 321 of 633 [2023-08-29 03:44:06,602 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:44:07,663 INFO L130 PetriNetUnfolder]: 7261/15959 cut-off events. [2023-08-29 03:44:07,663 INFO L131 PetriNetUnfolder]: For 2039/2039 co-relation queries the response was YES. [2023-08-29 03:44:07,692 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28572 conditions, 15959 events. 7261/15959 cut-off events. For 2039/2039 co-relation queries the response was YES. Maximal size of possible extension queue 584. Compared 154306 event pairs, 3183 based on Foata normal form. 0/12834 useless extension candidates. Maximal degree in co-relation 28563. Up to 7071 conditions per place. [2023-08-29 03:44:07,730 INFO L137 encePairwiseOnDemand]: 627/633 looper letters, 124 selfloop transitions, 5 changer transitions 0/186 dead transitions. [2023-08-29 03:44:07,730 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 186 transitions, 721 flow [2023-08-29 03:44:07,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 03:44:07,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 03:44:07,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2048 transitions. [2023-08-29 03:44:07,734 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5392311743022643 [2023-08-29 03:44:07,734 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2048 transitions. [2023-08-29 03:44:07,734 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2048 transitions. [2023-08-29 03:44:07,735 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:44:07,735 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2048 transitions. [2023-08-29 03:44:07,738 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 341.3333333333333) internal successors, (2048), 6 states have internal predecessors, (2048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:44:07,741 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 633.0) internal successors, (4431), 7 states have internal predecessors, (4431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:44:07,742 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 633.0) internal successors, (4431), 7 states have internal predecessors, (4431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:44:07,742 INFO L175 Difference]: Start difference. First operand has 114 places, 106 transitions, 279 flow. Second operand 6 states and 2048 transitions. [2023-08-29 03:44:07,742 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 186 transitions, 721 flow [2023-08-29 03:44:07,744 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 186 transitions, 713 flow, removed 3 selfloop flow, removed 1 redundant places. [2023-08-29 03:44:07,746 INFO L231 Difference]: Finished difference. Result has 118 places, 106 transitions, 285 flow [2023-08-29 03:44:07,746 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=633, PETRI_DIFFERENCE_MINUEND_FLOW=269, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=285, PETRI_PLACES=118, PETRI_TRANSITIONS=106} [2023-08-29 03:44:07,746 INFO L281 CegarLoopForPetriNet]: 133 programPoint places, -15 predicate places. [2023-08-29 03:44:07,746 INFO L495 AbstractCegarLoop]: Abstraction has has 118 places, 106 transitions, 285 flow [2023-08-29 03:44:07,747 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 323.0) internal successors, (1938), 6 states have internal predecessors, (1938), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:44:07,747 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:44:07,747 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:44:07,748 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-29 03:44:07,748 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-08-29 03:44:07,748 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:44:07,748 INFO L85 PathProgramCache]: Analyzing trace with hash -487733133, now seen corresponding path program 1 times [2023-08-29 03:44:07,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:44:07,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151412366] [2023-08-29 03:44:07,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:44:07,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:44:07,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:44:07,823 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 03:44:07,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:44:07,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151412366] [2023-08-29 03:44:07,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151412366] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-29 03:44:07,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1763713316] [2023-08-29 03:44:07,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:44:07,824 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 03:44:07,824 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 03:44:07,837 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-29 03:44:07,840 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-08-29 03:44:07,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:44:07,912 INFO L263 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 8 conjunts are in the unsatisfiable core [2023-08-29 03:44:07,914 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 03:44:07,964 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 03:44:07,965 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-29 03:44:08,013 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 03:44:08,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1763713316] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-29 03:44:08,014 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-29 03:44:08,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2023-08-29 03:44:08,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513423944] [2023-08-29 03:44:08,014 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-29 03:44:08,015 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-29 03:44:08,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:44:08,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-29 03:44:08,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2023-08-29 03:44:08,313 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 321 out of 633 [2023-08-29 03:44:08,315 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 106 transitions, 285 flow. Second operand has 12 states, 12 states have (on average 322.5833333333333) internal successors, (3871), 12 states have internal predecessors, (3871), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:44:08,315 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:44:08,315 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 321 of 633 [2023-08-29 03:44:08,315 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:44:09,057 INFO L130 PetriNetUnfolder]: 4220/9758 cut-off events. [2023-08-29 03:44:09,058 INFO L131 PetriNetUnfolder]: For 1573/1679 co-relation queries the response was YES. [2023-08-29 03:44:09,090 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18406 conditions, 9758 events. 4220/9758 cut-off events. For 1573/1679 co-relation queries the response was YES. Maximal size of possible extension queue 387. Compared 89132 event pairs, 2030 based on Foata normal form. 92/8173 useless extension candidates. Maximal degree in co-relation 18395. Up to 4136 conditions per place. [2023-08-29 03:44:09,123 INFO L137 encePairwiseOnDemand]: 626/633 looper letters, 98 selfloop transitions, 6 changer transitions 0/167 dead transitions. [2023-08-29 03:44:09,124 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 167 transitions, 658 flow [2023-08-29 03:44:09,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-29 03:44:09,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-29 03:44:09,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2344 transitions. [2023-08-29 03:44:09,129 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5290002256826901 [2023-08-29 03:44:09,130 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2344 transitions. [2023-08-29 03:44:09,130 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2344 transitions. [2023-08-29 03:44:09,145 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:44:09,145 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2344 transitions. [2023-08-29 03:44:09,149 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 334.85714285714283) internal successors, (2344), 7 states have internal predecessors, (2344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:44:09,153 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 633.0) internal successors, (5064), 8 states have internal predecessors, (5064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:44:09,153 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 633.0) internal successors, (5064), 8 states have internal predecessors, (5064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:44:09,154 INFO L175 Difference]: Start difference. First operand has 118 places, 106 transitions, 285 flow. Second operand 7 states and 2344 transitions. [2023-08-29 03:44:09,154 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 167 transitions, 658 flow [2023-08-29 03:44:09,158 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 167 transitions, 649 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-29 03:44:09,159 INFO L231 Difference]: Finished difference. Result has 123 places, 108 transitions, 307 flow [2023-08-29 03:44:09,159 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=633, PETRI_DIFFERENCE_MINUEND_FLOW=277, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=307, PETRI_PLACES=123, PETRI_TRANSITIONS=108} [2023-08-29 03:44:09,160 INFO L281 CegarLoopForPetriNet]: 133 programPoint places, -10 predicate places. [2023-08-29 03:44:09,160 INFO L495 AbstractCegarLoop]: Abstraction has has 123 places, 108 transitions, 307 flow [2023-08-29 03:44:09,161 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 322.5833333333333) internal successors, (3871), 12 states have internal predecessors, (3871), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:44:09,161 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:44:09,161 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:44:09,166 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-08-29 03:44:09,366 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2023-08-29 03:44:09,367 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread2Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-08-29 03:44:09,367 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:44:09,367 INFO L85 PathProgramCache]: Analyzing trace with hash 605406192, now seen corresponding path program 2 times [2023-08-29 03:44:09,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:44:09,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578347310] [2023-08-29 03:44:09,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:44:09,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:44:09,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:44:09,661 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-29 03:44:09,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:44:09,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578347310] [2023-08-29 03:44:09,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [578347310] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:44:09,662 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:44:09,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 03:44:09,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191679693] [2023-08-29 03:44:09,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:44:09,663 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 03:44:09,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:44:09,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 03:44:09,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 03:44:10,126 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 321 out of 633 [2023-08-29 03:44:10,128 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 108 transitions, 307 flow. Second operand has 6 states, 6 states have (on average 323.3333333333333) internal successors, (1940), 6 states have internal predecessors, (1940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:44:10,128 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:44:10,128 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 321 of 633 [2023-08-29 03:44:10,128 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:44:11,156 INFO L130 PetriNetUnfolder]: 6680/13960 cut-off events. [2023-08-29 03:44:11,156 INFO L131 PetriNetUnfolder]: For 3297/3375 co-relation queries the response was YES. [2023-08-29 03:44:11,237 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28429 conditions, 13960 events. 6680/13960 cut-off events. For 3297/3375 co-relation queries the response was YES. Maximal size of possible extension queue 509. Compared 127233 event pairs, 2669 based on Foata normal form. 78/12275 useless extension candidates. Maximal degree in co-relation 28416. Up to 5727 conditions per place. [2023-08-29 03:44:11,287 INFO L137 encePairwiseOnDemand]: 627/633 looper letters, 130 selfloop transitions, 5 changer transitions 0/192 dead transitions. [2023-08-29 03:44:11,288 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 192 transitions, 813 flow [2023-08-29 03:44:11,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 03:44:11,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 03:44:11,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2048 transitions. [2023-08-29 03:44:11,309 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5392311743022643 [2023-08-29 03:44:11,309 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2048 transitions. [2023-08-29 03:44:11,309 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2048 transitions. [2023-08-29 03:44:11,310 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:44:11,310 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2048 transitions. [2023-08-29 03:44:11,313 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 341.3333333333333) internal successors, (2048), 6 states have internal predecessors, (2048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:44:11,323 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 633.0) internal successors, (4431), 7 states have internal predecessors, (4431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:44:11,324 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 633.0) internal successors, (4431), 7 states have internal predecessors, (4431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:44:11,324 INFO L175 Difference]: Start difference. First operand has 123 places, 108 transitions, 307 flow. Second operand 6 states and 2048 transitions. [2023-08-29 03:44:11,324 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 192 transitions, 813 flow [2023-08-29 03:44:11,353 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 192 transitions, 808 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 03:44:11,355 INFO L231 Difference]: Finished difference. Result has 126 places, 108 transitions, 316 flow [2023-08-29 03:44:11,356 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=633, PETRI_DIFFERENCE_MINUEND_FLOW=300, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=316, PETRI_PLACES=126, PETRI_TRANSITIONS=108} [2023-08-29 03:44:11,357 INFO L281 CegarLoopForPetriNet]: 133 programPoint places, -7 predicate places. [2023-08-29 03:44:11,357 INFO L495 AbstractCegarLoop]: Abstraction has has 126 places, 108 transitions, 316 flow [2023-08-29 03:44:11,357 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 323.3333333333333) internal successors, (1940), 6 states have internal predecessors, (1940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:44:11,367 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:44:11,368 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:44:11,368 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-29 03:44:11,368 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread3Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-08-29 03:44:11,369 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:44:11,369 INFO L85 PathProgramCache]: Analyzing trace with hash 1342720661, now seen corresponding path program 1 times [2023-08-29 03:44:11,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:44:11,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936253043] [2023-08-29 03:44:11,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:44:11,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:44:11,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:44:11,449 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 03:44:11,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:44:11,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936253043] [2023-08-29 03:44:11,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1936253043] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-29 03:44:11,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [410654000] [2023-08-29 03:44:11,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:44:11,450 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 03:44:11,451 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 03:44:11,451 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-29 03:44:11,454 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-08-29 03:44:11,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:44:11,532 INFO L263 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 8 conjunts are in the unsatisfiable core [2023-08-29 03:44:11,533 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 03:44:11,589 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 03:44:11,589 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-29 03:44:11,624 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 03:44:11,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [410654000] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-29 03:44:11,624 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-29 03:44:11,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2023-08-29 03:44:11,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443176287] [2023-08-29 03:44:11,625 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-29 03:44:11,625 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-29 03:44:11,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:44:11,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-29 03:44:11,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2023-08-29 03:44:11,982 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 321 out of 633 [2023-08-29 03:44:11,983 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 108 transitions, 316 flow. Second operand has 12 states, 12 states have (on average 323.0833333333333) internal successors, (3877), 12 states have internal predecessors, (3877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:44:11,983 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:44:11,983 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 321 of 633 [2023-08-29 03:44:11,983 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:44:12,724 INFO L130 PetriNetUnfolder]: 4645/9780 cut-off events. [2023-08-29 03:44:12,725 INFO L131 PetriNetUnfolder]: For 2717/2769 co-relation queries the response was YES. [2023-08-29 03:44:12,752 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21198 conditions, 9780 events. 4645/9780 cut-off events. For 2717/2769 co-relation queries the response was YES. Maximal size of possible extension queue 394. Compared 82754 event pairs, 2224 based on Foata normal form. 34/8258 useless extension candidates. Maximal degree in co-relation 21183. Up to 5220 conditions per place. [2023-08-29 03:44:12,780 INFO L137 encePairwiseOnDemand]: 626/633 looper letters, 78 selfloop transitions, 6 changer transitions 0/148 dead transitions. [2023-08-29 03:44:12,781 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 148 transitions, 610 flow [2023-08-29 03:44:12,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-29 03:44:12,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-29 03:44:12,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2324 transitions. [2023-08-29 03:44:12,784 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5244865718799369 [2023-08-29 03:44:12,784 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2324 transitions. [2023-08-29 03:44:12,784 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2324 transitions. [2023-08-29 03:44:12,785 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:44:12,785 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2324 transitions. [2023-08-29 03:44:12,788 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 332.0) internal successors, (2324), 7 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:44:12,792 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 633.0) internal successors, (5064), 8 states have internal predecessors, (5064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:44:12,792 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 633.0) internal successors, (5064), 8 states have internal predecessors, (5064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:44:12,792 INFO L175 Difference]: Start difference. First operand has 126 places, 108 transitions, 316 flow. Second operand 7 states and 2324 transitions. [2023-08-29 03:44:12,793 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 148 transitions, 610 flow [2023-08-29 03:44:12,805 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 148 transitions, 601 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-29 03:44:12,807 INFO L231 Difference]: Finished difference. Result has 131 places, 110 transitions, 338 flow [2023-08-29 03:44:12,807 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=633, PETRI_DIFFERENCE_MINUEND_FLOW=308, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=338, PETRI_PLACES=131, PETRI_TRANSITIONS=110} [2023-08-29 03:44:12,807 INFO L281 CegarLoopForPetriNet]: 133 programPoint places, -2 predicate places. [2023-08-29 03:44:12,807 INFO L495 AbstractCegarLoop]: Abstraction has has 131 places, 110 transitions, 338 flow [2023-08-29 03:44:12,808 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 323.0833333333333) internal successors, (3877), 12 states have internal predecessors, (3877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:44:12,808 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:44:12,809 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:44:12,816 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-08-29 03:44:13,013 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 03:44:13,014 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread3Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-08-29 03:44:13,014 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:44:13,014 INFO L85 PathProgramCache]: Analyzing trace with hash -417375534, now seen corresponding path program 2 times [2023-08-29 03:44:13,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:44:13,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326420522] [2023-08-29 03:44:13,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:44:13,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:44:13,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:44:13,255 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-29 03:44:13,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:44:13,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326420522] [2023-08-29 03:44:13,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [326420522] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:44:13,256 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:44:13,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 03:44:13,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369323888] [2023-08-29 03:44:13,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:44:13,257 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 03:44:13,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:44:13,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 03:44:13,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 03:44:13,668 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 321 out of 633 [2023-08-29 03:44:13,669 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 110 transitions, 338 flow. Second operand has 6 states, 6 states have (on average 323.8333333333333) internal successors, (1943), 6 states have internal predecessors, (1943), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:44:13,669 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:44:13,669 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 321 of 633 [2023-08-29 03:44:13,669 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:44:14,724 INFO L130 PetriNetUnfolder]: 6835/12874 cut-off events. [2023-08-29 03:44:14,725 INFO L131 PetriNetUnfolder]: For 4545/4579 co-relation queries the response was YES. [2023-08-29 03:44:14,773 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29740 conditions, 12874 events. 6835/12874 cut-off events. For 4545/4579 co-relation queries the response was YES. Maximal size of possible extension queue 470. Compared 105338 event pairs, 2405 based on Foata normal form. 34/11231 useless extension candidates. Maximal degree in co-relation 29723. Up to 5609 conditions per place. [2023-08-29 03:44:14,819 INFO L137 encePairwiseOnDemand]: 627/633 looper letters, 123 selfloop transitions, 5 changer transitions 0/186 dead transitions. [2023-08-29 03:44:14,820 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 186 transitions, 858 flow [2023-08-29 03:44:14,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 03:44:14,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 03:44:14,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2035 transitions. [2023-08-29 03:44:14,824 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5358083201685098 [2023-08-29 03:44:14,824 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2035 transitions. [2023-08-29 03:44:14,824 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2035 transitions. [2023-08-29 03:44:14,825 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:44:14,825 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2035 transitions. [2023-08-29 03:44:14,828 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 339.1666666666667) internal successors, (2035), 6 states have internal predecessors, (2035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:44:14,831 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 633.0) internal successors, (4431), 7 states have internal predecessors, (4431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:44:14,832 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 633.0) internal successors, (4431), 7 states have internal predecessors, (4431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:44:14,832 INFO L175 Difference]: Start difference. First operand has 131 places, 110 transitions, 338 flow. Second operand 6 states and 2035 transitions. [2023-08-29 03:44:14,833 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 186 transitions, 858 flow [2023-08-29 03:44:14,846 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 186 transitions, 853 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 03:44:14,848 INFO L231 Difference]: Finished difference. Result has 134 places, 110 transitions, 347 flow [2023-08-29 03:44:14,848 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=633, PETRI_DIFFERENCE_MINUEND_FLOW=331, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=347, PETRI_PLACES=134, PETRI_TRANSITIONS=110} [2023-08-29 03:44:14,848 INFO L281 CegarLoopForPetriNet]: 133 programPoint places, 1 predicate places. [2023-08-29 03:44:14,848 INFO L495 AbstractCegarLoop]: Abstraction has has 134 places, 110 transitions, 347 flow [2023-08-29 03:44:14,849 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 323.8333333333333) internal successors, (1943), 6 states have internal predecessors, (1943), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:44:14,849 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:44:14,849 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] [2023-08-29 03:44:14,849 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-29 03:44:14,849 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-08-29 03:44:14,850 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:44:14,850 INFO L85 PathProgramCache]: Analyzing trace with hash 1158084679, now seen corresponding path program 1 times [2023-08-29 03:44:14,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:44:14,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762729492] [2023-08-29 03:44:14,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:44:14,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:44:14,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:44:15,052 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-29 03:44:15,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:44:15,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762729492] [2023-08-29 03:44:15,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1762729492] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:44:15,053 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:44:15,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 03:44:15,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632591783] [2023-08-29 03:44:15,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:44:15,055 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 03:44:15,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:44:15,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 03:44:15,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 03:44:15,353 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 322 out of 633 [2023-08-29 03:44:15,354 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 110 transitions, 347 flow. Second operand has 6 states, 6 states have (on average 324.6666666666667) internal successors, (1948), 6 states have internal predecessors, (1948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:44:15,354 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:44:15,355 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 322 of 633 [2023-08-29 03:44:15,355 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:44:16,424 INFO L130 PetriNetUnfolder]: 5958/11844 cut-off events. [2023-08-29 03:44:16,424 INFO L131 PetriNetUnfolder]: For 4288/4352 co-relation queries the response was YES. [2023-08-29 03:44:16,465 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27917 conditions, 11844 events. 5958/11844 cut-off events. For 4288/4352 co-relation queries the response was YES. Maximal size of possible extension queue 418. Compared 100038 event pairs, 2662 based on Foata normal form. 46/10408 useless extension candidates. Maximal degree in co-relation 27898. Up to 6166 conditions per place. [2023-08-29 03:44:16,509 INFO L137 encePairwiseOnDemand]: 628/633 looper letters, 135 selfloop transitions, 4 changer transitions 0/197 dead transitions. [2023-08-29 03:44:16,509 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 197 transitions, 971 flow [2023-08-29 03:44:16,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 03:44:16,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 03:44:16,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2031 transitions. [2023-08-29 03:44:16,513 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5347551342812006 [2023-08-29 03:44:16,513 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2031 transitions. [2023-08-29 03:44:16,513 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2031 transitions. [2023-08-29 03:44:16,514 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:44:16,514 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2031 transitions. [2023-08-29 03:44:16,516 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 338.5) internal successors, (2031), 6 states have internal predecessors, (2031), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:44:16,519 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 633.0) internal successors, (4431), 7 states have internal predecessors, (4431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:44:16,520 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 633.0) internal successors, (4431), 7 states have internal predecessors, (4431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:44:16,520 INFO L175 Difference]: Start difference. First operand has 134 places, 110 transitions, 347 flow. Second operand 6 states and 2031 transitions. [2023-08-29 03:44:16,520 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 197 transitions, 971 flow [2023-08-29 03:44:16,549 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 197 transitions, 959 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-29 03:44:16,551 INFO L231 Difference]: Finished difference. Result has 134 places, 109 transitions, 345 flow [2023-08-29 03:44:16,551 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=633, PETRI_DIFFERENCE_MINUEND_FLOW=337, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=345, PETRI_PLACES=134, PETRI_TRANSITIONS=109} [2023-08-29 03:44:16,551 INFO L281 CegarLoopForPetriNet]: 133 programPoint places, 1 predicate places. [2023-08-29 03:44:16,552 INFO L495 AbstractCegarLoop]: Abstraction has has 134 places, 109 transitions, 345 flow [2023-08-29 03:44:16,552 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 324.6666666666667) internal successors, (1948), 6 states have internal predecessors, (1948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:44:16,552 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:44:16,552 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:44:16,552 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-29 03:44:16,553 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-08-29 03:44:16,553 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:44:16,553 INFO L85 PathProgramCache]: Analyzing trace with hash 1101091557, now seen corresponding path program 1 times [2023-08-29 03:44:16,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:44:16,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042078381] [2023-08-29 03:44:16,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:44:16,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:44:16,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:44:16,739 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-29 03:44:16,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:44:16,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042078381] [2023-08-29 03:44:16,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2042078381] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:44:16,740 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:44:16,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 03:44:16,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047879348] [2023-08-29 03:44:16,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:44:16,741 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 03:44:16,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:44:16,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 03:44:16,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 03:44:17,021 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 321 out of 633 [2023-08-29 03:44:17,023 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 109 transitions, 345 flow. Second operand has 6 states, 6 states have (on average 323.0) internal successors, (1938), 6 states have internal predecessors, (1938), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:44:17,023 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:44:17,023 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 321 of 633 [2023-08-29 03:44:17,023 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:44:18,042 INFO L130 PetriNetUnfolder]: 6317/12165 cut-off events. [2023-08-29 03:44:18,042 INFO L131 PetriNetUnfolder]: For 4343/4367 co-relation queries the response was YES. [2023-08-29 03:44:18,080 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28427 conditions, 12165 events. 6317/12165 cut-off events. For 4343/4367 co-relation queries the response was YES. Maximal size of possible extension queue 512. Compared 101102 event pairs, 2560 based on Foata normal form. 24/10854 useless extension candidates. Maximal degree in co-relation 28408. Up to 5655 conditions per place. [2023-08-29 03:44:18,129 INFO L137 encePairwiseOnDemand]: 627/633 looper letters, 136 selfloop transitions, 5 changer transitions 0/196 dead transitions. [2023-08-29 03:44:18,129 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 196 transitions, 921 flow [2023-08-29 03:44:18,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 03:44:18,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 03:44:18,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2047 transitions. [2023-08-29 03:44:18,134 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5389678778304371 [2023-08-29 03:44:18,134 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2047 transitions. [2023-08-29 03:44:18,134 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2047 transitions. [2023-08-29 03:44:18,135 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:44:18,135 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2047 transitions. [2023-08-29 03:44:18,139 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 341.1666666666667) internal successors, (2047), 6 states have internal predecessors, (2047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:44:18,143 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 633.0) internal successors, (4431), 7 states have internal predecessors, (4431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:44:18,144 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 633.0) internal successors, (4431), 7 states have internal predecessors, (4431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:44:18,144 INFO L175 Difference]: Start difference. First operand has 134 places, 109 transitions, 345 flow. Second operand 6 states and 2047 transitions. [2023-08-29 03:44:18,144 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 196 transitions, 921 flow [2023-08-29 03:44:18,177 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 196 transitions, 914 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-29 03:44:18,179 INFO L231 Difference]: Finished difference. Result has 134 places, 108 transitions, 346 flow [2023-08-29 03:44:18,179 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=633, PETRI_DIFFERENCE_MINUEND_FLOW=336, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=346, PETRI_PLACES=134, PETRI_TRANSITIONS=108} [2023-08-29 03:44:18,180 INFO L281 CegarLoopForPetriNet]: 133 programPoint places, 1 predicate places. [2023-08-29 03:44:18,180 INFO L495 AbstractCegarLoop]: Abstraction has has 134 places, 108 transitions, 346 flow [2023-08-29 03:44:18,180 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 323.0) internal successors, (1938), 6 states have internal predecessors, (1938), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:44:18,181 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:44:18,181 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:44:18,181 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-29 03:44:18,181 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thread2Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-08-29 03:44:18,181 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:44:18,182 INFO L85 PathProgramCache]: Analyzing trace with hash -1557941288, now seen corresponding path program 1 times [2023-08-29 03:44:18,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:44:18,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000196588] [2023-08-29 03:44:18,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:44:18,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:44:18,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:44:18,350 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-29 03:44:18,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:44:18,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000196588] [2023-08-29 03:44:18,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2000196588] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:44:18,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:44:18,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 03:44:18,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150336472] [2023-08-29 03:44:18,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:44:18,351 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 03:44:18,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:44:18,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 03:44:18,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 03:44:18,677 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 321 out of 633 [2023-08-29 03:44:18,678 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 108 transitions, 346 flow. Second operand has 6 states, 6 states have (on average 323.3333333333333) internal successors, (1940), 6 states have internal predecessors, (1940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:44:18,678 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:44:18,678 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 321 of 633 [2023-08-29 03:44:18,678 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:44:19,694 INFO L130 PetriNetUnfolder]: 6435/12376 cut-off events. [2023-08-29 03:44:19,695 INFO L131 PetriNetUnfolder]: For 4771/4816 co-relation queries the response was YES. [2023-08-29 03:44:19,750 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29021 conditions, 12376 events. 6435/12376 cut-off events. For 4771/4816 co-relation queries the response was YES. Maximal size of possible extension queue 488. Compared 103413 event pairs, 2565 based on Foata normal form. 24/11096 useless extension candidates. Maximal degree in co-relation 29002. Up to 5585 conditions per place. [2023-08-29 03:44:19,795 INFO L137 encePairwiseOnDemand]: 627/633 looper letters, 136 selfloop transitions, 5 changer transitions 0/195 dead transitions. [2023-08-29 03:44:19,795 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 195 transitions, 930 flow [2023-08-29 03:44:19,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 03:44:19,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 03:44:19,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2047 transitions. [2023-08-29 03:44:19,798 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5389678778304371 [2023-08-29 03:44:19,798 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2047 transitions. [2023-08-29 03:44:19,799 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2047 transitions. [2023-08-29 03:44:19,799 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:44:19,799 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2047 transitions. [2023-08-29 03:44:19,802 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 341.1666666666667) internal successors, (2047), 6 states have internal predecessors, (2047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:44:19,808 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 633.0) internal successors, (4431), 7 states have internal predecessors, (4431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:44:19,809 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 633.0) internal successors, (4431), 7 states have internal predecessors, (4431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:44:19,809 INFO L175 Difference]: Start difference. First operand has 134 places, 108 transitions, 346 flow. Second operand 6 states and 2047 transitions. [2023-08-29 03:44:19,809 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 195 transitions, 930 flow [2023-08-29 03:44:19,837 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 195 transitions, 912 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-29 03:44:19,839 INFO L231 Difference]: Finished difference. Result has 133 places, 107 transitions, 344 flow [2023-08-29 03:44:19,839 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=633, PETRI_DIFFERENCE_MINUEND_FLOW=334, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=344, PETRI_PLACES=133, PETRI_TRANSITIONS=107} [2023-08-29 03:44:19,839 INFO L281 CegarLoopForPetriNet]: 133 programPoint places, 0 predicate places. [2023-08-29 03:44:19,840 INFO L495 AbstractCegarLoop]: Abstraction has has 133 places, 107 transitions, 344 flow [2023-08-29 03:44:19,840 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 323.3333333333333) internal successors, (1940), 6 states have internal predecessors, (1940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:44:19,840 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:44:19,840 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:44:19,840 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-08-29 03:44:19,841 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting thread3Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-08-29 03:44:19,841 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:44:19,841 INFO L85 PathProgramCache]: Analyzing trace with hash -1685568921, now seen corresponding path program 1 times [2023-08-29 03:44:19,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:44:19,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728986331] [2023-08-29 03:44:19,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:44:19,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:44:19,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:44:20,062 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-29 03:44:20,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:44:20,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728986331] [2023-08-29 03:44:20,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [728986331] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:44:20,063 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:44:20,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 03:44:20,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15528051] [2023-08-29 03:44:20,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:44:20,065 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 03:44:20,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:44:20,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 03:44:20,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 03:44:20,417 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 321 out of 633 [2023-08-29 03:44:20,418 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 107 transitions, 344 flow. Second operand has 6 states, 6 states have (on average 324.0) internal successors, (1944), 6 states have internal predecessors, (1944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:44:20,418 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:44:20,418 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 321 of 633 [2023-08-29 03:44:20,419 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:44:21,235 INFO L130 PetriNetUnfolder]: 6470/12061 cut-off events. [2023-08-29 03:44:21,236 INFO L131 PetriNetUnfolder]: For 4829/4881 co-relation queries the response was YES. [2023-08-29 03:44:21,270 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29197 conditions, 12061 events. 6470/12061 cut-off events. For 4829/4881 co-relation queries the response was YES. Maximal size of possible extension queue 451. Compared 97362 event pairs, 2624 based on Foata normal form. 34/10514 useless extension candidates. Maximal degree in co-relation 29178. Up to 6088 conditions per place. [2023-08-29 03:44:21,305 INFO L137 encePairwiseOnDemand]: 627/633 looper letters, 122 selfloop transitions, 5 changer transitions 0/182 dead transitions. [2023-08-29 03:44:21,306 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 182 transitions, 868 flow [2023-08-29 03:44:21,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 03:44:21,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 03:44:21,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2034 transitions. [2023-08-29 03:44:21,309 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5355450236966824 [2023-08-29 03:44:21,309 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2034 transitions. [2023-08-29 03:44:21,309 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2034 transitions. [2023-08-29 03:44:21,310 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:44:21,310 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2034 transitions. [2023-08-29 03:44:21,312 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 339.0) internal successors, (2034), 6 states have internal predecessors, (2034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:44:21,315 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 633.0) internal successors, (4431), 7 states have internal predecessors, (4431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:44:21,316 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 633.0) internal successors, (4431), 7 states have internal predecessors, (4431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:44:21,316 INFO L175 Difference]: Start difference. First operand has 133 places, 107 transitions, 344 flow. Second operand 6 states and 2034 transitions. [2023-08-29 03:44:21,316 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 182 transitions, 868 flow [2023-08-29 03:44:21,345 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 182 transitions, 850 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-29 03:44:21,346 INFO L231 Difference]: Finished difference. Result has 132 places, 106 transitions, 342 flow [2023-08-29 03:44:21,346 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=633, PETRI_DIFFERENCE_MINUEND_FLOW=332, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=342, PETRI_PLACES=132, PETRI_TRANSITIONS=106} [2023-08-29 03:44:21,347 INFO L281 CegarLoopForPetriNet]: 133 programPoint places, -1 predicate places. [2023-08-29 03:44:21,347 INFO L495 AbstractCegarLoop]: Abstraction has has 132 places, 106 transitions, 342 flow [2023-08-29 03:44:21,347 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 324.0) internal successors, (1944), 6 states have internal predecessors, (1944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:44:21,347 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:44:21,347 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, 1] [2023-08-29 03:44:21,347 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-08-29 03:44:21,347 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-08-29 03:44:21,348 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:44:21,348 INFO L85 PathProgramCache]: Analyzing trace with hash -1163381815, now seen corresponding path program 1 times [2023-08-29 03:44:21,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:44:21,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921515271] [2023-08-29 03:44:21,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:44:21,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:44:21,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:44:21,579 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-29 03:44:21,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:44:21,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921515271] [2023-08-29 03:44:21,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1921515271] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:44:21,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:44:21,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 03:44:21,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449893470] [2023-08-29 03:44:21,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:44:21,581 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 03:44:21,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:44:21,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 03:44:21,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 03:44:21,913 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 322 out of 633 [2023-08-29 03:44:21,915 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 106 transitions, 342 flow. Second operand has 6 states, 6 states have (on average 325.1666666666667) internal successors, (1951), 6 states have internal predecessors, (1951), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:44:21,915 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:44:21,915 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 322 of 633 [2023-08-29 03:44:21,915 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:44:22,686 INFO L130 PetriNetUnfolder]: 5082/10653 cut-off events. [2023-08-29 03:44:22,686 INFO L131 PetriNetUnfolder]: For 3802/3854 co-relation queries the response was YES. [2023-08-29 03:44:22,709 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24736 conditions, 10653 events. 5082/10653 cut-off events. For 3802/3854 co-relation queries the response was YES. Maximal size of possible extension queue 371. Compared 91994 event pairs, 2829 based on Foata normal form. 34/9374 useless extension candidates. Maximal degree in co-relation 24717. Up to 6532 conditions per place. [2023-08-29 03:44:22,713 INFO L137 encePairwiseOnDemand]: 628/633 looper letters, 0 selfloop transitions, 0 changer transitions 157/157 dead transitions. [2023-08-29 03:44:22,713 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 157 transitions, 754 flow [2023-08-29 03:44:22,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 03:44:22,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 03:44:22,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2007 transitions. [2023-08-29 03:44:22,717 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5284360189573459 [2023-08-29 03:44:22,717 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2007 transitions. [2023-08-29 03:44:22,717 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2007 transitions. [2023-08-29 03:44:22,718 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:44:22,718 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2007 transitions. [2023-08-29 03:44:22,720 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 334.5) internal successors, (2007), 6 states have internal predecessors, (2007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:44:22,722 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 633.0) internal successors, (4431), 7 states have internal predecessors, (4431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:44:22,722 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 633.0) internal successors, (4431), 7 states have internal predecessors, (4431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:44:22,722 INFO L175 Difference]: Start difference. First operand has 132 places, 106 transitions, 342 flow. Second operand 6 states and 2007 transitions. [2023-08-29 03:44:22,722 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 157 transitions, 754 flow [2023-08-29 03:44:22,743 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 157 transitions, 736 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-29 03:44:22,744 INFO L231 Difference]: Finished difference. Result has 131 places, 0 transitions, 0 flow [2023-08-29 03:44:22,744 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=633, PETRI_DIFFERENCE_MINUEND_FLOW=330, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=131, PETRI_TRANSITIONS=0} [2023-08-29 03:44:22,744 INFO L281 CegarLoopForPetriNet]: 133 programPoint places, -2 predicate places. [2023-08-29 03:44:22,744 INFO L495 AbstractCegarLoop]: Abstraction has has 131 places, 0 transitions, 0 flow [2023-08-29 03:44:22,745 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 325.1666666666667) internal successors, (1951), 6 states have internal predecessors, (1951), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 03:44:22,746 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (63 of 64 remaining) [2023-08-29 03:44:22,747 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (62 of 64 remaining) [2023-08-29 03:44:22,747 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (61 of 64 remaining) [2023-08-29 03:44:22,747 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (60 of 64 remaining) [2023-08-29 03:44:22,747 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (59 of 64 remaining) [2023-08-29 03:44:22,747 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (58 of 64 remaining) [2023-08-29 03:44:22,747 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (57 of 64 remaining) [2023-08-29 03:44:22,747 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (56 of 64 remaining) [2023-08-29 03:44:22,748 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (55 of 64 remaining) [2023-08-29 03:44:22,748 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (54 of 64 remaining) [2023-08-29 03:44:22,748 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (53 of 64 remaining) [2023-08-29 03:44:22,748 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (52 of 64 remaining) [2023-08-29 03:44:22,748 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (51 of 64 remaining) [2023-08-29 03:44:22,748 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (50 of 64 remaining) [2023-08-29 03:44:22,748 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (49 of 64 remaining) [2023-08-29 03:44:22,748 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (48 of 64 remaining) [2023-08-29 03:44:22,749 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (47 of 64 remaining) [2023-08-29 03:44:22,749 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONDATA_RACE (46 of 64 remaining) [2023-08-29 03:44:22,749 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err7ASSERT_VIOLATIONDATA_RACE (45 of 64 remaining) [2023-08-29 03:44:22,749 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONDATA_RACE (44 of 64 remaining) [2023-08-29 03:44:22,749 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONDATA_RACE (43 of 64 remaining) [2023-08-29 03:44:22,749 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err6ASSERT_VIOLATIONDATA_RACE (42 of 64 remaining) [2023-08-29 03:44:22,749 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (41 of 64 remaining) [2023-08-29 03:44:22,749 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (40 of 64 remaining) [2023-08-29 03:44:22,749 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (39 of 64 remaining) [2023-08-29 03:44:22,750 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (38 of 64 remaining) [2023-08-29 03:44:22,750 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (37 of 64 remaining) [2023-08-29 03:44:22,750 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (36 of 64 remaining) [2023-08-29 03:44:22,750 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (35 of 64 remaining) [2023-08-29 03:44:22,750 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (34 of 64 remaining) [2023-08-29 03:44:22,750 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (33 of 64 remaining) [2023-08-29 03:44:22,750 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (32 of 64 remaining) [2023-08-29 03:44:22,750 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (31 of 64 remaining) [2023-08-29 03:44:22,751 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (30 of 64 remaining) [2023-08-29 03:44:22,751 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (29 of 64 remaining) [2023-08-29 03:44:22,751 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (28 of 64 remaining) [2023-08-29 03:44:22,751 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (27 of 64 remaining) [2023-08-29 03:44:22,751 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE (26 of 64 remaining) [2023-08-29 03:44:22,751 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE (25 of 64 remaining) [2023-08-29 03:44:22,751 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (24 of 64 remaining) [2023-08-29 03:44:22,751 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (23 of 64 remaining) [2023-08-29 03:44:22,752 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (22 of 64 remaining) [2023-08-29 03:44:22,752 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (21 of 64 remaining) [2023-08-29 03:44:22,752 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (20 of 64 remaining) [2023-08-29 03:44:22,752 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (19 of 64 remaining) [2023-08-29 03:44:22,752 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (18 of 64 remaining) [2023-08-29 03:44:22,752 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (17 of 64 remaining) [2023-08-29 03:44:22,752 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (16 of 64 remaining) [2023-08-29 03:44:22,752 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (15 of 64 remaining) [2023-08-29 03:44:22,753 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (14 of 64 remaining) [2023-08-29 03:44:22,753 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (13 of 64 remaining) [2023-08-29 03:44:22,753 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (12 of 64 remaining) [2023-08-29 03:44:22,753 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (11 of 64 remaining) [2023-08-29 03:44:22,753 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (10 of 64 remaining) [2023-08-29 03:44:22,753 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (9 of 64 remaining) [2023-08-29 03:44:22,753 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (8 of 64 remaining) [2023-08-29 03:44:22,753 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (7 of 64 remaining) [2023-08-29 03:44:22,757 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (6 of 64 remaining) [2023-08-29 03:44:22,758 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (5 of 64 remaining) [2023-08-29 03:44:22,758 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONDATA_RACE (4 of 64 remaining) [2023-08-29 03:44:22,758 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err7ASSERT_VIOLATIONDATA_RACE (3 of 64 remaining) [2023-08-29 03:44:22,758 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONDATA_RACE (2 of 64 remaining) [2023-08-29 03:44:22,758 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONDATA_RACE (1 of 64 remaining) [2023-08-29 03:44:22,758 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err6ASSERT_VIOLATIONDATA_RACE (0 of 64 remaining) [2023-08-29 03:44:22,758 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-08-29 03:44:22,759 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:44:22,762 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-29 03:44:22,762 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-29 03:44:22,764 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 03:44:22 BasicIcfg [2023-08-29 03:44:22,764 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-29 03:44:22,765 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-29 03:44:22,765 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-29 03:44:22,765 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-29 03:44:22,765 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 03:43:51" (3/4) ... [2023-08-29 03:44:22,766 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-29 03:44:22,770 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2023-08-29 03:44:22,770 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2023-08-29 03:44:22,770 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2023-08-29 03:44:22,774 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 24 nodes and edges [2023-08-29 03:44:22,774 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-08-29 03:44:22,774 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-29 03:44:22,774 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-29 03:44:22,813 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-29 03:44:22,813 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-29 03:44:22,813 INFO L158 Benchmark]: Toolchain (without parser) took 32327.06ms. Allocated memory was 75.5MB in the beginning and 3.3GB in the end (delta: 3.3GB). Free memory was 53.2MB in the beginning and 3.0GB in the end (delta: -2.9GB). Peak memory consumption was 348.1MB. Max. memory is 16.1GB. [2023-08-29 03:44:22,814 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 75.5MB. Free memory is still 53.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 03:44:22,814 INFO L158 Benchmark]: CACSL2BoogieTranslator took 267.94ms. Allocated memory is still 75.5MB. Free memory was 52.9MB in the beginning and 40.5MB in the end (delta: 12.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-08-29 03:44:22,814 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.42ms. Allocated memory is still 75.5MB. Free memory was 40.2MB in the beginning and 38.0MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 03:44:22,814 INFO L158 Benchmark]: Boogie Preprocessor took 32.17ms. Allocated memory is still 75.5MB. Free memory was 38.0MB in the beginning and 35.6MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 03:44:22,814 INFO L158 Benchmark]: RCFGBuilder took 602.90ms. Allocated memory was 75.5MB in the beginning and 96.5MB in the end (delta: 21.0MB). Free memory was 35.6MB in the beginning and 51.2MB in the end (delta: -15.6MB). Peak memory consumption was 13.0MB. Max. memory is 16.1GB. [2023-08-29 03:44:22,815 INFO L158 Benchmark]: TraceAbstraction took 31323.47ms. Allocated memory was 96.5MB in the beginning and 3.3GB in the end (delta: 3.2GB). Free memory was 50.7MB in the beginning and 3.0GB in the end (delta: -2.9GB). Peak memory consumption was 2.2GB. Max. memory is 16.1GB. [2023-08-29 03:44:22,815 INFO L158 Benchmark]: Witness Printer took 48.46ms. Allocated memory is still 3.3GB. Free memory was 3.0GB in the beginning and 3.0GB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-29 03:44:22,816 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 75.5MB. Free memory is still 53.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 267.94ms. Allocated memory is still 75.5MB. Free memory was 52.9MB in the beginning and 40.5MB in the end (delta: 12.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.42ms. Allocated memory is still 75.5MB. Free memory was 40.2MB in the beginning and 38.0MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.17ms. Allocated memory is still 75.5MB. Free memory was 38.0MB in the beginning and 35.6MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 602.90ms. Allocated memory was 75.5MB in the beginning and 96.5MB in the end (delta: 21.0MB). Free memory was 35.6MB in the beginning and 51.2MB in the end (delta: -15.6MB). Peak memory consumption was 13.0MB. Max. memory is 16.1GB. * TraceAbstraction took 31323.47ms. Allocated memory was 96.5MB in the beginning and 3.3GB in the end (delta: 3.2GB). Free memory was 50.7MB in the beginning and 3.0GB in the end (delta: -2.9GB). Peak memory consumption was 2.2GB. Max. memory is 16.1GB. * Witness Printer took 48.46ms. Allocated memory is still 3.3GB. Free memory was 3.0GB in the beginning and 3.0GB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.9s, 322 PlacesBefore, 133 PlacesAfterwards, 327 TransitionsBefore, 133 TransitionsAfterwards, 21474 CoEnabledTransitionPairs, 8 FixpointIterations, 159 TrivialSequentialCompositions, 82 ConcurrentSequentialCompositions, 17 TrivialYvCompositions, 20 ConcurrentYvCompositions, 5 ChoiceCompositions, 283 TotalNumberOfCompositions, 137204 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 33159, independent: 31598, independent conditional: 0, independent unconditional: 31598, dependent: 1561, dependent conditional: 0, dependent unconditional: 1561, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 10021, independent: 9854, independent conditional: 0, independent unconditional: 9854, dependent: 167, dependent conditional: 0, dependent unconditional: 167, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 33159, independent: 21744, independent conditional: 0, independent unconditional: 21744, dependent: 1394, dependent conditional: 0, dependent unconditional: 1394, unknown: 10021, unknown conditional: 0, unknown unconditional: 10021] , Statistics on independence cache: Total cache size (in pairs): 1611, Positive cache size: 1507, Positive conditional cache size: 0, Positive unconditional cache size: 1507, Negative cache size: 104, Negative conditional cache size: 0, Negative unconditional cache size: 104, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 47]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 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: 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: 55]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 56]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 56]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 56]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 56]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 56]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 56]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 63]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 63]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 74]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 75]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 76]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 76]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 103]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 77]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 78]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 79]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 81]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 81]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 81]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 87]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 88]: 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: 91]: 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: 91]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 478 locations, 64 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: 31.2s, OverallIterations: 17, TraceHistogramMax: 2, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 20.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 7.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4433 SdHoareTripleChecker+Valid, 6.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3064 mSDsluCounter, 1099 SdHoareTripleChecker+Invalid, 5.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 939 mSDsCounter, 1348 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 9675 IncrementalHoareTripleChecker+Invalid, 11023 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1348 mSolverCounterUnsat, 160 mSDtfsCounter, 9675 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 176 GetRequests, 97 SyntacticMatches, 3 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=347occurred in iteration=12, 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: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.6s InterpolantComputationTime, 334 NumberOfCodeBlocks, 334 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 362 ConstructedInterpolants, 0 QuantifiedInterpolants, 1655 SizeOfPredicates, 19 NumberOfNonLiveVariables, 625 ConjunctsInSsa, 23 ConjunctsInUnsatCore, 23 InterpolantComputations, 14 PerfectInterpolantSequences, 21/30 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 39 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-29 03:44:22,844 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