./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/pthread-ext/26_stack_cas.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --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/pthread-ext/26_stack_cas.i -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 fa97ad6141e9aa8818b694f4968e766701fe7261f516cd86f7a15e5cf1a3d14d --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-29 09:29:22,706 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 09:29:22,708 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 09:29:22,740 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 09:29:22,744 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 09:29:22,745 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 09:29:22,746 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 09:29:22,747 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 09:29:22,748 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 09:29:22,752 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 09:29:22,752 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 09:29:22,755 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 09:29:22,755 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 09:29:22,756 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 09:29:22,757 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 09:29:22,764 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 09:29:22,765 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 09:29:22,766 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 09:29:22,767 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 09:29:22,771 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 09:29:22,772 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 09:29:22,772 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 09:29:22,773 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 09:29:22,773 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 09:29:22,778 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 09:29:22,778 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 09:29:22,778 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 09:29:22,780 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 09:29:22,780 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 09:29:22,781 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 09:29:22,781 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 09:29:22,785 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 09:29:22,785 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 09:29:22,786 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 09:29:22,787 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 09:29:22,787 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 09:29:22,787 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 09:29:22,788 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 09:29:22,788 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 09:29:22,792 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 09:29:22,793 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 09:29:22,794 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-29 09:29:22,820 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 09:29:22,820 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 09:29:22,821 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 09:29:22,821 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 09:29:22,822 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 09:29:22,822 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 09:29:22,822 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 09:29:22,822 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 09:29:22,822 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 09:29:22,823 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 09:29:22,823 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 09:29:22,823 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 09:29:22,824 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 09:29:22,824 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 09:29:22,824 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 09:29:22,824 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-29 09:29:22,824 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 09:29:22,824 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-29 09:29:22,825 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-29 09:29:22,825 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 09:29:22,825 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-29 09:29:22,825 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 09:29:22,825 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-29 09:29:22,825 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 09:29:22,826 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 09:29:22,826 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 09:29:22,826 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 09:29:22,826 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 09:29:22,826 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 09:29:22,826 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-29 09:29:22,827 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 09:29:22,827 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 09:29:22,827 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 09:29:22,827 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-29 09:29:22,827 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 09:29:22,827 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 09:29:22,828 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 09:29:22,828 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fa97ad6141e9aa8818b694f4968e766701fe7261f516cd86f7a15e5cf1a3d14d Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-29 09:29:23,056 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 09:29:23,071 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 09:29:23,074 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 09:29:23,075 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 09:29:23,075 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 09:29:23,076 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/26_stack_cas.i [2023-08-29 09:29:23,958 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 09:29:24,126 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 09:29:24,127 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/26_stack_cas.i [2023-08-29 09:29:24,139 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85efd5a41/eab714fa52e843d1bad836f77e1ca25d/FLAG2ef03fca5 [2023-08-29 09:29:24,148 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85efd5a41/eab714fa52e843d1bad836f77e1ca25d [2023-08-29 09:29:24,149 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 09:29:24,150 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 09:29:24,151 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 09:29:24,151 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 09:29:24,162 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 09:29:24,162 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 09:29:24" (1/1) ... [2023-08-29 09:29:24,163 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e7b34f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:29:24, skipping insertion in model container [2023-08-29 09:29:24,164 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 09:29:24" (1/1) ... [2023-08-29 09:29:24,168 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 09:29:24,204 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 09:29:24,490 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/26_stack_cas.i[31152,31165] [2023-08-29 09:29:24,495 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 09:29:24,504 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 09:29:24,543 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/26_stack_cas.i[31152,31165] [2023-08-29 09:29:24,546 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 09:29:24,609 INFO L208 MainTranslator]: Completed translation [2023-08-29 09:29:24,610 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:29:24 WrapperNode [2023-08-29 09:29:24,610 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 09:29:24,611 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 09:29:24,611 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 09:29:24,611 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 09:29:24,615 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:29:24" (1/1) ... [2023-08-29 09:29:24,642 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:29:24" (1/1) ... [2023-08-29 09:29:24,681 INFO L138 Inliner]: procedures = 177, calls = 47, calls flagged for inlining = 16, calls inlined = 19, statements flattened = 320 [2023-08-29 09:29:24,682 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 09:29:24,682 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 09:29:24,682 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 09:29:24,683 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 09:29:24,688 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:29:24" (1/1) ... [2023-08-29 09:29:24,688 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:29:24" (1/1) ... [2023-08-29 09:29:24,697 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:29:24" (1/1) ... [2023-08-29 09:29:24,705 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:29:24" (1/1) ... [2023-08-29 09:29:24,716 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:29:24" (1/1) ... [2023-08-29 09:29:24,731 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:29:24" (1/1) ... [2023-08-29 09:29:24,733 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:29:24" (1/1) ... [2023-08-29 09:29:24,734 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:29:24" (1/1) ... [2023-08-29 09:29:24,737 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 09:29:24,738 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 09:29:24,738 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 09:29:24,738 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 09:29:24,739 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:29:24" (1/1) ... [2023-08-29 09:29:24,743 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 09:29:24,750 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 09:29:24,762 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 09:29:24,784 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 09:29:24,795 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-29 09:29:24,796 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2023-08-29 09:29:24,796 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2023-08-29 09:29:24,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-29 09:29:24,796 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-29 09:29:24,796 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 09:29:24,796 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 09:29:24,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-29 09:29:24,796 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 09:29:24,796 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 09:29:24,798 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 09:29:24,933 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 09:29:24,935 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 09:29:25,295 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 09:29:25,524 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 09:29:25,525 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-08-29 09:29:25,526 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 09:29:25 BoogieIcfgContainer [2023-08-29 09:29:25,527 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 09:29:25,528 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 09:29:25,528 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 09:29:25,530 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 09:29:25,530 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 09:29:24" (1/3) ... [2023-08-29 09:29:25,531 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25ac7e68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 09:29:25, skipping insertion in model container [2023-08-29 09:29:25,531 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 09:29:24" (2/3) ... [2023-08-29 09:29:25,531 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25ac7e68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 09:29:25, skipping insertion in model container [2023-08-29 09:29:25,531 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 09:29:25" (3/3) ... [2023-08-29 09:29:25,532 INFO L112 eAbstractionObserver]: Analyzing ICFG 26_stack_cas.i [2023-08-29 09:29:25,537 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-29 09:29:25,543 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 09:29:25,544 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 26 error locations. [2023-08-29 09:29:25,544 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 09:29:25,629 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-29 09:29:25,659 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 174 places, 181 transitions, 367 flow [2023-08-29 09:29:25,709 INFO L130 PetriNetUnfolder]: 11/191 cut-off events. [2023-08-29 09:29:25,710 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 09:29:25,715 INFO L83 FinitePrefix]: Finished finitePrefix Result has 196 conditions, 191 events. 11/191 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 243 event pairs, 0 based on Foata normal form. 0/152 useless extension candidates. Maximal degree in co-relation 157. Up to 4 conditions per place. [2023-08-29 09:29:25,715 INFO L82 GeneralOperation]: Start removeDead. Operand has 174 places, 181 transitions, 367 flow [2023-08-29 09:29:25,722 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 174 places, 181 transitions, 367 flow [2023-08-29 09:29:25,724 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 09:29:25,734 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 174 places, 181 transitions, 367 flow [2023-08-29 09:29:25,737 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 174 places, 181 transitions, 367 flow [2023-08-29 09:29:25,737 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 174 places, 181 transitions, 367 flow [2023-08-29 09:29:25,779 INFO L130 PetriNetUnfolder]: 11/191 cut-off events. [2023-08-29 09:29:25,780 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 09:29:25,783 INFO L83 FinitePrefix]: Finished finitePrefix Result has 196 conditions, 191 events. 11/191 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 243 event pairs, 0 based on Foata normal form. 0/152 useless extension candidates. Maximal degree in co-relation 157. Up to 4 conditions per place. [2023-08-29 09:29:25,785 INFO L119 LiptonReduction]: Number of co-enabled transitions 3770 [2023-08-29 09:29:31,156 INFO L134 LiptonReduction]: Checked pairs total: 4399 [2023-08-29 09:29:31,156 INFO L136 LiptonReduction]: Total number of compositions: 195 [2023-08-29 09:29:31,165 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 09:29:31,169 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;@46b27977, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 09:29:31,169 INFO L358 AbstractCegarLoop]: Starting to check reachability of 53 error locations. [2023-08-29 09:29:31,171 INFO L130 PetriNetUnfolder]: 0/4 cut-off events. [2023-08-29 09:29:31,171 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 09:29:31,172 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 09:29:31,172 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-29 09:29:31,172 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2023-08-29 09:29:31,175 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 09:29:31,175 INFO L85 PathProgramCache]: Analyzing trace with hash 37704300, now seen corresponding path program 1 times [2023-08-29 09:29:31,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 09:29:31,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465199403] [2023-08-29 09:29:31,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 09:29:31,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 09:29:31,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 09:29:31,315 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 09:29:31,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 09:29:31,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465199403] [2023-08-29 09:29:31,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [465199403] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 09:29:31,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 09:29:31,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-29 09:29:31,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077030283] [2023-08-29 09:29:31,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 09:29:31,326 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-29 09:29:31,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 09:29:31,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-29 09:29:31,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-29 09:29:31,343 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 152 out of 376 [2023-08-29 09:29:31,344 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 53 transitions, 111 flow. Second operand has 2 states, 2 states have (on average 154.0) internal successors, (308), 2 states have internal predecessors, (308), 0 states have call successors, (0), 0 states 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 09:29:31,344 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 09:29:31,344 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 152 of 376 [2023-08-29 09:29:31,345 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 09:29:31,404 INFO L130 PetriNetUnfolder]: 43/91 cut-off events. [2023-08-29 09:29:31,405 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 09:29:31,405 INFO L83 FinitePrefix]: Finished finitePrefix Result has 187 conditions, 91 events. 43/91 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 178 event pairs, 28 based on Foata normal form. 0/76 useless extension candidates. Maximal degree in co-relation 174. Up to 91 conditions per place. [2023-08-29 09:29:31,406 INFO L137 encePairwiseOnDemand]: 347/376 looper letters, 23 selfloop transitions, 0 changer transitions 0/24 dead transitions. [2023-08-29 09:29:31,406 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 23 places, 24 transitions, 99 flow [2023-08-29 09:29:31,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-29 09:29:31,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-29 09:29:31,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 356 transitions. [2023-08-29 09:29:31,420 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4734042553191489 [2023-08-29 09:29:31,421 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 356 transitions. [2023-08-29 09:29:31,421 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 356 transitions. [2023-08-29 09:29:31,423 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 09:29:31,425 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 356 transitions. [2023-08-29 09:29:31,428 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 178.0) internal successors, (356), 2 states have internal predecessors, (356), 0 states have call successors, (0), 0 states 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 09:29:31,432 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 376.0) internal successors, (1128), 3 states have internal predecessors, (1128), 0 states have call successors, (0), 0 states 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 09:29:31,433 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 376.0) internal successors, (1128), 3 states have internal predecessors, (1128), 0 states have call successors, (0), 0 states 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 09:29:31,434 INFO L175 Difference]: Start difference. First operand has 49 places, 53 transitions, 111 flow. Second operand 2 states and 356 transitions. [2023-08-29 09:29:31,434 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 23 places, 24 transitions, 99 flow [2023-08-29 09:29:31,436 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 24 transitions, 99 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 09:29:31,437 INFO L231 Difference]: Finished difference. Result has 23 places, 24 transitions, 53 flow [2023-08-29 09:29:31,439 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=376, PETRI_DIFFERENCE_MINUEND_FLOW=53, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=53, PETRI_PLACES=23, PETRI_TRANSITIONS=24} [2023-08-29 09:29:31,442 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, -26 predicate places. [2023-08-29 09:29:31,443 INFO L495 AbstractCegarLoop]: Abstraction has has 23 places, 24 transitions, 53 flow [2023-08-29 09:29:31,443 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 154.0) internal successors, (308), 2 states have internal predecessors, (308), 0 states have call successors, (0), 0 states 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 09:29:31,443 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 09:29:31,443 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2023-08-29 09:29:31,444 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-29 09:29:31,444 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2023-08-29 09:29:31,450 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 09:29:31,450 INFO L85 PathProgramCache]: Analyzing trace with hash 1874194445, now seen corresponding path program 1 times [2023-08-29 09:29:31,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 09:29:31,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403858743] [2023-08-29 09:29:31,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 09:29:31,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 09:29:31,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-29 09:29:31,485 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-29 09:29:31,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-29 09:29:31,520 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-29 09:29:31,521 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-29 09:29:31,522 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (52 of 53 remaining) [2023-08-29 09:29:31,525 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (51 of 53 remaining) [2023-08-29 09:29:31,525 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (50 of 53 remaining) [2023-08-29 09:29:31,525 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (49 of 53 remaining) [2023-08-29 09:29:31,526 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (48 of 53 remaining) [2023-08-29 09:29:31,526 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (47 of 53 remaining) [2023-08-29 09:29:31,526 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (46 of 53 remaining) [2023-08-29 09:29:31,526 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (45 of 53 remaining) [2023-08-29 09:29:31,526 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (44 of 53 remaining) [2023-08-29 09:29:31,527 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (43 of 53 remaining) [2023-08-29 09:29:31,527 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (42 of 53 remaining) [2023-08-29 09:29:31,527 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (41 of 53 remaining) [2023-08-29 09:29:31,527 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (40 of 53 remaining) [2023-08-29 09:29:31,527 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (39 of 53 remaining) [2023-08-29 09:29:31,527 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (38 of 53 remaining) [2023-08-29 09:29:31,532 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (37 of 53 remaining) [2023-08-29 09:29:31,532 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (36 of 53 remaining) [2023-08-29 09:29:31,532 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (35 of 53 remaining) [2023-08-29 09:29:31,532 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (34 of 53 remaining) [2023-08-29 09:29:31,533 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONDATA_RACE (33 of 53 remaining) [2023-08-29 09:29:31,533 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (32 of 53 remaining) [2023-08-29 09:29:31,534 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONDATA_RACE (31 of 53 remaining) [2023-08-29 09:29:31,534 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONDATA_RACE (30 of 53 remaining) [2023-08-29 09:29:31,534 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONDATA_RACE (29 of 53 remaining) [2023-08-29 09:29:31,534 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONDATA_RACE (28 of 53 remaining) [2023-08-29 09:29:31,534 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONDATA_RACE (27 of 53 remaining) [2023-08-29 09:29:31,534 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONDATA_RACE (26 of 53 remaining) [2023-08-29 09:29:31,534 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (25 of 53 remaining) [2023-08-29 09:29:31,534 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (24 of 53 remaining) [2023-08-29 09:29:31,535 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (23 of 53 remaining) [2023-08-29 09:29:31,535 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (22 of 53 remaining) [2023-08-29 09:29:31,535 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (21 of 53 remaining) [2023-08-29 09:29:31,535 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (20 of 53 remaining) [2023-08-29 09:29:31,535 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (19 of 53 remaining) [2023-08-29 09:29:31,535 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (18 of 53 remaining) [2023-08-29 09:29:31,535 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (17 of 53 remaining) [2023-08-29 09:29:31,536 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (16 of 53 remaining) [2023-08-29 09:29:31,536 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (15 of 53 remaining) [2023-08-29 09:29:31,536 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (14 of 53 remaining) [2023-08-29 09:29:31,536 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (13 of 53 remaining) [2023-08-29 09:29:31,536 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (12 of 53 remaining) [2023-08-29 09:29:31,536 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (11 of 53 remaining) [2023-08-29 09:29:31,536 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (10 of 53 remaining) [2023-08-29 09:29:31,537 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (9 of 53 remaining) [2023-08-29 09:29:31,537 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (8 of 53 remaining) [2023-08-29 09:29:31,537 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONDATA_RACE (7 of 53 remaining) [2023-08-29 09:29:31,545 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (6 of 53 remaining) [2023-08-29 09:29:31,545 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONDATA_RACE (5 of 53 remaining) [2023-08-29 09:29:31,545 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONDATA_RACE (4 of 53 remaining) [2023-08-29 09:29:31,546 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONDATA_RACE (3 of 53 remaining) [2023-08-29 09:29:31,546 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONDATA_RACE (2 of 53 remaining) [2023-08-29 09:29:31,546 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONDATA_RACE (1 of 53 remaining) [2023-08-29 09:29:31,546 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONDATA_RACE (0 of 53 remaining) [2023-08-29 09:29:31,546 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-29 09:29:31,547 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-08-29 09:29:31,548 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-29 09:29:31,548 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-08-29 09:29:31,610 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-29 09:29:31,618 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 313 places, 327 transitions, 666 flow [2023-08-29 09:29:31,686 INFO L130 PetriNetUnfolder]: 21/349 cut-off events. [2023-08-29 09:29:31,686 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-29 09:29:31,689 INFO L83 FinitePrefix]: Finished finitePrefix Result has 359 conditions, 349 events. 21/349 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 949 event pairs, 0 based on Foata normal form. 0/273 useless extension candidates. Maximal degree in co-relation 302. Up to 6 conditions per place. [2023-08-29 09:29:31,689 INFO L82 GeneralOperation]: Start removeDead. Operand has 313 places, 327 transitions, 666 flow [2023-08-29 09:29:31,693 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 313 places, 327 transitions, 666 flow [2023-08-29 09:29:31,693 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 09:29:31,693 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 313 places, 327 transitions, 666 flow [2023-08-29 09:29:31,694 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 313 places, 327 transitions, 666 flow [2023-08-29 09:29:31,694 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 313 places, 327 transitions, 666 flow [2023-08-29 09:29:31,734 INFO L130 PetriNetUnfolder]: 21/349 cut-off events. [2023-08-29 09:29:31,734 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-29 09:29:31,737 INFO L83 FinitePrefix]: Finished finitePrefix Result has 359 conditions, 349 events. 21/349 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 949 event pairs, 0 based on Foata normal form. 0/273 useless extension candidates. Maximal degree in co-relation 302. Up to 6 conditions per place. [2023-08-29 09:29:31,752 INFO L119 LiptonReduction]: Number of co-enabled transitions 49880 [2023-08-29 09:29:37,037 INFO L134 LiptonReduction]: Checked pairs total: 221986 [2023-08-29 09:29:37,037 INFO L136 LiptonReduction]: Total number of compositions: 189 [2023-08-29 09:29:37,039 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 09:29:37,039 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;@46b27977, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 09:29:37,039 INFO L358 AbstractCegarLoop]: Starting to check reachability of 79 error locations. [2023-08-29 09:29:37,041 INFO L130 PetriNetUnfolder]: 0/5 cut-off events. [2023-08-29 09:29:37,041 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 09:29:37,041 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 09:29:37,041 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-29 09:29:37,041 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 75 more)] === [2023-08-29 09:29:37,041 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 09:29:37,041 INFO L85 PathProgramCache]: Analyzing trace with hash 58160430, now seen corresponding path program 1 times [2023-08-29 09:29:37,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 09:29:37,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635242815] [2023-08-29 09:29:37,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 09:29:37,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 09:29:37,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 09:29:37,065 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 09:29:37,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 09:29:37,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635242815] [2023-08-29 09:29:37,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [635242815] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 09:29:37,066 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 09:29:37,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-29 09:29:37,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101372898] [2023-08-29 09:29:37,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 09:29:37,067 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-29 09:29:37,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 09:29:37,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-29 09:29:37,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-29 09:29:37,069 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 271 out of 516 [2023-08-29 09:29:37,070 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 179 transitions, 370 flow. Second operand has 2 states, 2 states have (on average 273.0) internal successors, (546), 2 states have internal predecessors, (546), 0 states have call successors, (0), 0 states 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 09:29:37,070 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 09:29:37,070 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 271 of 516 [2023-08-29 09:29:37,070 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 09:29:37,608 INFO L130 PetriNetUnfolder]: 2251/5721 cut-off events. [2023-08-29 09:29:37,609 INFO L131 PetriNetUnfolder]: For 77/77 co-relation queries the response was YES. [2023-08-29 09:29:37,615 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9313 conditions, 5721 events. 2251/5721 cut-off events. For 77/77 co-relation queries the response was YES. Maximal size of possible extension queue 178. Compared 48823 event pairs, 1751 based on Foata normal form. 0/5000 useless extension candidates. Maximal degree in co-relation 6404. Up to 3504 conditions per place. [2023-08-29 09:29:37,631 INFO L137 encePairwiseOnDemand]: 481/516 looper letters, 61 selfloop transitions, 0 changer transitions 0/144 dead transitions. [2023-08-29 09:29:37,632 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 144 transitions, 422 flow [2023-08-29 09:29:37,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-29 09:29:37,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-29 09:29:37,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 638 transitions. [2023-08-29 09:29:37,634 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6182170542635659 [2023-08-29 09:29:37,634 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 638 transitions. [2023-08-29 09:29:37,634 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 638 transitions. [2023-08-29 09:29:37,634 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 09:29:37,635 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 638 transitions. [2023-08-29 09:29:37,638 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 319.0) internal successors, (638), 2 states have internal predecessors, (638), 0 states have call successors, (0), 0 states 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 09:29:37,641 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 516.0) internal successors, (1548), 3 states have internal predecessors, (1548), 0 states have call successors, (0), 0 states 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 09:29:37,641 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 516.0) internal successors, (1548), 3 states have internal predecessors, (1548), 0 states have call successors, (0), 0 states 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 09:29:37,641 INFO L175 Difference]: Start difference. First operand has 170 places, 179 transitions, 370 flow. Second operand 2 states and 638 transitions. [2023-08-29 09:29:37,642 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 144 transitions, 422 flow [2023-08-29 09:29:37,643 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 144 transitions, 420 flow, removed 1 selfloop flow, removed 0 redundant places. [2023-08-29 09:29:37,645 INFO L231 Difference]: Finished difference. Result has 140 places, 144 transitions, 298 flow [2023-08-29 09:29:37,646 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=516, PETRI_DIFFERENCE_MINUEND_FLOW=298, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=144, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=298, PETRI_PLACES=140, PETRI_TRANSITIONS=144} [2023-08-29 09:29:37,647 INFO L281 CegarLoopForPetriNet]: 170 programPoint places, -30 predicate places. [2023-08-29 09:29:37,647 INFO L495 AbstractCegarLoop]: Abstraction has has 140 places, 144 transitions, 298 flow [2023-08-29 09:29:37,647 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 273.0) internal successors, (546), 2 states have internal predecessors, (546), 0 states have call successors, (0), 0 states 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 09:29:37,654 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 09:29:37,654 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-29 09:29:37,654 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-29 09:29:37,655 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 75 more)] === [2023-08-29 09:29:37,655 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 09:29:37,655 INFO L85 PathProgramCache]: Analyzing trace with hash 57645389, now seen corresponding path program 1 times [2023-08-29 09:29:37,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 09:29:37,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689462420] [2023-08-29 09:29:37,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 09:29:37,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 09:29:37,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 09:29:37,731 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 09:29:37,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 09:29:37,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689462420] [2023-08-29 09:29:37,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [689462420] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 09:29:37,732 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 09:29:37,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 09:29:37,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647464234] [2023-08-29 09:29:37,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 09:29:37,733 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 09:29:37,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 09:29:37,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 09:29:37,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 09:29:37,743 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 263 out of 516 [2023-08-29 09:29:37,744 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 144 transitions, 298 flow. Second operand has 3 states, 3 states have (on average 265.0) internal successors, (795), 3 states have internal predecessors, (795), 0 states have call successors, (0), 0 states 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 09:29:37,744 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 09:29:37,744 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 263 of 516 [2023-08-29 09:29:37,744 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 09:29:38,793 INFO L130 PetriNetUnfolder]: 5230/12886 cut-off events. [2023-08-29 09:29:38,793 INFO L131 PetriNetUnfolder]: For 133/133 co-relation queries the response was YES. [2023-08-29 09:29:38,808 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21208 conditions, 12886 events. 5230/12886 cut-off events. For 133/133 co-relation queries the response was YES. Maximal size of possible extension queue 377. Compared 123280 event pairs, 2002 based on Foata normal form. 0/11262 useless extension candidates. Maximal degree in co-relation 21203. Up to 4188 conditions per place. [2023-08-29 09:29:38,847 INFO L137 encePairwiseOnDemand]: 508/516 looper letters, 126 selfloop transitions, 6 changer transitions 0/208 dead transitions. [2023-08-29 09:29:38,848 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 208 transitions, 695 flow [2023-08-29 09:29:38,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 09:29:38,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 09:29:38,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 923 transitions. [2023-08-29 09:29:38,850 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5962532299741602 [2023-08-29 09:29:38,850 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 923 transitions. [2023-08-29 09:29:38,850 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 923 transitions. [2023-08-29 09:29:38,851 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 09:29:38,851 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 923 transitions. [2023-08-29 09:29:38,852 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 307.6666666666667) internal successors, (923), 3 states have internal predecessors, (923), 0 states have call successors, (0), 0 states 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 09:29:38,854 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 516.0) internal successors, (2064), 4 states have internal predecessors, (2064), 0 states have call successors, (0), 0 states 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 09:29:38,855 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 516.0) internal successors, (2064), 4 states have internal predecessors, (2064), 0 states have call successors, (0), 0 states 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 09:29:38,855 INFO L175 Difference]: Start difference. First operand has 140 places, 144 transitions, 298 flow. Second operand 3 states and 923 transitions. [2023-08-29 09:29:38,855 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 208 transitions, 695 flow [2023-08-29 09:29:38,857 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 208 transitions, 695 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 09:29:38,860 INFO L231 Difference]: Finished difference. Result has 144 places, 150 transitions, 350 flow [2023-08-29 09:29:38,861 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=516, PETRI_DIFFERENCE_MINUEND_FLOW=298, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=144, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=350, PETRI_PLACES=144, PETRI_TRANSITIONS=150} [2023-08-29 09:29:38,863 INFO L281 CegarLoopForPetriNet]: 170 programPoint places, -26 predicate places. [2023-08-29 09:29:38,863 INFO L495 AbstractCegarLoop]: Abstraction has has 144 places, 150 transitions, 350 flow [2023-08-29 09:29:38,863 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 265.0) internal successors, (795), 3 states have internal predecessors, (795), 0 states have call successors, (0), 0 states 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 09:29:38,863 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 09:29:38,864 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2023-08-29 09:29:38,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-29 09:29:38,864 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 75 more)] === [2023-08-29 09:29:38,864 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 09:29:38,864 INFO L85 PathProgramCache]: Analyzing trace with hash 1770387562, now seen corresponding path program 1 times [2023-08-29 09:29:38,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 09:29:38,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780794630] [2023-08-29 09:29:38,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 09:29:38,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 09:29:38,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-29 09:29:38,889 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-29 09:29:38,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-29 09:29:38,907 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-29 09:29:38,907 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-29 09:29:38,908 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (78 of 79 remaining) [2023-08-29 09:29:38,908 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (77 of 79 remaining) [2023-08-29 09:29:38,909 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (76 of 79 remaining) [2023-08-29 09:29:38,909 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (75 of 79 remaining) [2023-08-29 09:29:38,909 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (74 of 79 remaining) [2023-08-29 09:29:38,910 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (73 of 79 remaining) [2023-08-29 09:29:38,910 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (72 of 79 remaining) [2023-08-29 09:29:38,910 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (71 of 79 remaining) [2023-08-29 09:29:38,911 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (70 of 79 remaining) [2023-08-29 09:29:38,911 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (69 of 79 remaining) [2023-08-29 09:29:38,911 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (68 of 79 remaining) [2023-08-29 09:29:38,911 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (67 of 79 remaining) [2023-08-29 09:29:38,911 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (66 of 79 remaining) [2023-08-29 09:29:38,911 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (65 of 79 remaining) [2023-08-29 09:29:38,911 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (64 of 79 remaining) [2023-08-29 09:29:38,911 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (63 of 79 remaining) [2023-08-29 09:29:38,912 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (62 of 79 remaining) [2023-08-29 09:29:38,912 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (61 of 79 remaining) [2023-08-29 09:29:38,912 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (60 of 79 remaining) [2023-08-29 09:29:38,912 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONDATA_RACE (59 of 79 remaining) [2023-08-29 09:29:38,912 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (58 of 79 remaining) [2023-08-29 09:29:38,912 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONDATA_RACE (57 of 79 remaining) [2023-08-29 09:29:38,912 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONDATA_RACE (56 of 79 remaining) [2023-08-29 09:29:38,912 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONDATA_RACE (55 of 79 remaining) [2023-08-29 09:29:38,913 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONDATA_RACE (54 of 79 remaining) [2023-08-29 09:29:38,913 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONDATA_RACE (53 of 79 remaining) [2023-08-29 09:29:38,913 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONDATA_RACE (52 of 79 remaining) [2023-08-29 09:29:38,913 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (51 of 79 remaining) [2023-08-29 09:29:38,913 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (50 of 79 remaining) [2023-08-29 09:29:38,913 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (49 of 79 remaining) [2023-08-29 09:29:38,913 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (48 of 79 remaining) [2023-08-29 09:29:38,913 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (47 of 79 remaining) [2023-08-29 09:29:38,914 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (46 of 79 remaining) [2023-08-29 09:29:38,914 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (45 of 79 remaining) [2023-08-29 09:29:38,914 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (44 of 79 remaining) [2023-08-29 09:29:38,914 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (43 of 79 remaining) [2023-08-29 09:29:38,914 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (42 of 79 remaining) [2023-08-29 09:29:38,914 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (41 of 79 remaining) [2023-08-29 09:29:38,914 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (40 of 79 remaining) [2023-08-29 09:29:38,914 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (39 of 79 remaining) [2023-08-29 09:29:38,915 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (38 of 79 remaining) [2023-08-29 09:29:38,915 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (37 of 79 remaining) [2023-08-29 09:29:38,915 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (36 of 79 remaining) [2023-08-29 09:29:38,915 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (35 of 79 remaining) [2023-08-29 09:29:38,915 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (34 of 79 remaining) [2023-08-29 09:29:38,915 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONDATA_RACE (33 of 79 remaining) [2023-08-29 09:29:38,915 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (32 of 79 remaining) [2023-08-29 09:29:38,915 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONDATA_RACE (31 of 79 remaining) [2023-08-29 09:29:38,916 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONDATA_RACE (30 of 79 remaining) [2023-08-29 09:29:38,916 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONDATA_RACE (29 of 79 remaining) [2023-08-29 09:29:38,916 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONDATA_RACE (28 of 79 remaining) [2023-08-29 09:29:38,916 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONDATA_RACE (27 of 79 remaining) [2023-08-29 09:29:38,916 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONDATA_RACE (26 of 79 remaining) [2023-08-29 09:29:38,916 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (25 of 79 remaining) [2023-08-29 09:29:38,916 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (24 of 79 remaining) [2023-08-29 09:29:38,917 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (23 of 79 remaining) [2023-08-29 09:29:38,917 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (22 of 79 remaining) [2023-08-29 09:29:38,917 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (21 of 79 remaining) [2023-08-29 09:29:38,917 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (20 of 79 remaining) [2023-08-29 09:29:38,917 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (19 of 79 remaining) [2023-08-29 09:29:38,918 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (18 of 79 remaining) [2023-08-29 09:29:38,918 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (17 of 79 remaining) [2023-08-29 09:29:38,918 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (16 of 79 remaining) [2023-08-29 09:29:38,919 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (15 of 79 remaining) [2023-08-29 09:29:38,919 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (14 of 79 remaining) [2023-08-29 09:29:38,919 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (13 of 79 remaining) [2023-08-29 09:29:38,919 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (12 of 79 remaining) [2023-08-29 09:29:38,919 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (11 of 79 remaining) [2023-08-29 09:29:38,919 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (10 of 79 remaining) [2023-08-29 09:29:38,919 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (9 of 79 remaining) [2023-08-29 09:29:38,921 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (8 of 79 remaining) [2023-08-29 09:29:38,921 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONDATA_RACE (7 of 79 remaining) [2023-08-29 09:29:38,922 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (6 of 79 remaining) [2023-08-29 09:29:38,922 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONDATA_RACE (5 of 79 remaining) [2023-08-29 09:29:38,922 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONDATA_RACE (4 of 79 remaining) [2023-08-29 09:29:38,922 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONDATA_RACE (3 of 79 remaining) [2023-08-29 09:29:38,922 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONDATA_RACE (2 of 79 remaining) [2023-08-29 09:29:38,922 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONDATA_RACE (1 of 79 remaining) [2023-08-29 09:29:38,922 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONDATA_RACE (0 of 79 remaining) [2023-08-29 09:29:38,922 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-29 09:29:38,923 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-08-29 09:29:38,923 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-29 09:29:38,923 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2023-08-29 09:29:38,983 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-29 09:29:38,988 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 452 places, 473 transitions, 967 flow [2023-08-29 09:29:39,084 INFO L130 PetriNetUnfolder]: 31/507 cut-off events. [2023-08-29 09:29:39,084 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2023-08-29 09:29:39,093 INFO L83 FinitePrefix]: Finished finitePrefix Result has 523 conditions, 507 events. 31/507 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1855 event pairs, 0 based on Foata normal form. 0/394 useless extension candidates. Maximal degree in co-relation 447. Up to 8 conditions per place. [2023-08-29 09:29:39,093 INFO L82 GeneralOperation]: Start removeDead. Operand has 452 places, 473 transitions, 967 flow [2023-08-29 09:29:39,098 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 452 places, 473 transitions, 967 flow [2023-08-29 09:29:39,099 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 09:29:39,099 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 452 places, 473 transitions, 967 flow [2023-08-29 09:29:39,099 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 452 places, 473 transitions, 967 flow [2023-08-29 09:29:39,099 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 452 places, 473 transitions, 967 flow [2023-08-29 09:29:39,159 INFO L130 PetriNetUnfolder]: 31/507 cut-off events. [2023-08-29 09:29:39,159 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2023-08-29 09:29:39,168 INFO L83 FinitePrefix]: Finished finitePrefix Result has 523 conditions, 507 events. 31/507 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1855 event pairs, 0 based on Foata normal form. 0/394 useless extension candidates. Maximal degree in co-relation 447. Up to 8 conditions per place. [2023-08-29 09:29:39,220 INFO L119 LiptonReduction]: Number of co-enabled transitions 138330 [2023-08-29 09:30:01,967 INFO L134 LiptonReduction]: Checked pairs total: 552886 [2023-08-29 09:30:01,967 INFO L136 LiptonReduction]: Total number of compositions: 281 [2023-08-29 09:30:01,969 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 09:30:01,971 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;@46b27977, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 09:30:01,971 INFO L358 AbstractCegarLoop]: Starting to check reachability of 105 error locations. [2023-08-29 09:30:01,973 INFO L130 PetriNetUnfolder]: 0/6 cut-off events. [2023-08-29 09:30:01,973 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 09:30:01,973 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 09:30:01,973 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-29 09:30:01,973 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 101 more)] === [2023-08-29 09:30:01,973 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 09:30:01,974 INFO L85 PathProgramCache]: Analyzing trace with hash 85850640, now seen corresponding path program 1 times [2023-08-29 09:30:01,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 09:30:01,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206954802] [2023-08-29 09:30:01,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 09:30:01,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 09:30:01,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 09:30:01,991 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 09:30:01,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 09:30:01,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206954802] [2023-08-29 09:30:01,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1206954802] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 09:30:01,992 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 09:30:01,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-29 09:30:01,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495206750] [2023-08-29 09:30:01,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 09:30:01,993 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-29 09:30:01,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 09:30:01,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-29 09:30:01,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-29 09:30:01,994 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 390 out of 754 [2023-08-29 09:30:01,995 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 250 places, 264 transitions, 549 flow. Second operand has 2 states, 2 states have (on average 392.0) internal successors, (784), 2 states have internal predecessors, (784), 0 states have call successors, (0), 0 states 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 09:30:01,995 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 09:30:01,995 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 390 of 754 [2023-08-29 09:30:01,995 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 09:30:16,072 INFO L130 PetriNetUnfolder]: 99609/188887 cut-off events. [2023-08-29 09:30:16,072 INFO L131 PetriNetUnfolder]: For 3985/3985 co-relation queries the response was YES. [2023-08-29 09:30:16,475 INFO L83 FinitePrefix]: Finished finitePrefix Result has 325060 conditions, 188887 events. 99609/188887 cut-off events. For 3985/3985 co-relation queries the response was YES. Maximal size of possible extension queue 4534. Compared 2137306 event pairs, 79849 based on Foata normal form. 0/162383 useless extension candidates. Maximal degree in co-relation 128832. Up to 133412 conditions per place. [2023-08-29 09:30:17,285 INFO L137 encePairwiseOnDemand]: 702/754 looper letters, 93 selfloop transitions, 0 changer transitions 0/212 dead transitions. [2023-08-29 09:30:17,285 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 205 places, 212 transitions, 631 flow [2023-08-29 09:30:17,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-29 09:30:17,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-29 09:30:17,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 925 transitions. [2023-08-29 09:30:17,288 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.613395225464191 [2023-08-29 09:30:17,288 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 925 transitions. [2023-08-29 09:30:17,289 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 925 transitions. [2023-08-29 09:30:17,289 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 09:30:17,289 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 925 transitions. [2023-08-29 09:30:17,291 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 462.5) internal successors, (925), 2 states have internal predecessors, (925), 0 states have call successors, (0), 0 states 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 09:30:17,293 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 754.0) internal successors, (2262), 3 states have internal predecessors, (2262), 0 states have call successors, (0), 0 states 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 09:30:17,294 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 754.0) internal successors, (2262), 3 states have internal predecessors, (2262), 0 states have call successors, (0), 0 states 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 09:30:17,294 INFO L175 Difference]: Start difference. First operand has 250 places, 264 transitions, 549 flow. Second operand 2 states and 925 transitions. [2023-08-29 09:30:17,294 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 205 places, 212 transitions, 631 flow [2023-08-29 09:30:17,300 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 205 places, 212 transitions, 625 flow, removed 3 selfloop flow, removed 0 redundant places. [2023-08-29 09:30:17,304 INFO L231 Difference]: Finished difference. Result has 205 places, 212 transitions, 439 flow [2023-08-29 09:30:17,304 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=754, PETRI_DIFFERENCE_MINUEND_FLOW=439, PETRI_DIFFERENCE_MINUEND_PLACES=204, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=212, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=212, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=439, PETRI_PLACES=205, PETRI_TRANSITIONS=212} [2023-08-29 09:30:17,307 INFO L281 CegarLoopForPetriNet]: 250 programPoint places, -45 predicate places. [2023-08-29 09:30:17,307 INFO L495 AbstractCegarLoop]: Abstraction has has 205 places, 212 transitions, 439 flow [2023-08-29 09:30:17,307 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 392.0) internal successors, (784), 2 states have internal predecessors, (784), 0 states have call successors, (0), 0 states 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 09:30:17,307 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 09:30:17,308 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-29 09:30:17,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-29 09:30:17,308 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 101 more)] === [2023-08-29 09:30:17,308 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 09:30:17,308 INFO L85 PathProgramCache]: Analyzing trace with hash 898157490, now seen corresponding path program 1 times [2023-08-29 09:30:17,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 09:30:17,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371118045] [2023-08-29 09:30:17,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 09:30:17,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 09:30:17,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 09:30:17,343 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 09:30:17,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 09:30:17,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371118045] [2023-08-29 09:30:17,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1371118045] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 09:30:17,344 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 09:30:17,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 09:30:17,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224369141] [2023-08-29 09:30:17,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 09:30:17,344 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 09:30:17,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 09:30:17,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 09:30:17,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 09:30:17,360 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 378 out of 754 [2023-08-29 09:30:17,361 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 205 places, 212 transitions, 439 flow. Second operand has 3 states, 3 states have (on average 380.0) internal successors, (1140), 3 states have internal predecessors, (1140), 0 states have call successors, (0), 0 states 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 09:30:17,361 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 09:30:17,361 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 378 of 754 [2023-08-29 09:30:17,361 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 09:30:53,565 INFO L130 PetriNetUnfolder]: 262470/490531 cut-off events. [2023-08-29 09:30:53,565 INFO L131 PetriNetUnfolder]: For 4438/4438 co-relation queries the response was YES. [2023-08-29 09:30:54,804 INFO L83 FinitePrefix]: Finished finitePrefix Result has 849092 conditions, 490531 events. 262470/490531 cut-off events. For 4438/4438 co-relation queries the response was YES. Maximal size of possible extension queue 11092. Compared 6067889 event pairs, 103141 based on Foata normal form. 0/422182 useless extension candidates. Maximal degree in co-relation 849086. Up to 179851 conditions per place. [2023-08-29 09:30:56,637 INFO L137 encePairwiseOnDemand]: 742/754 looper letters, 190 selfloop transitions, 9 changer transitions 0/309 dead transitions. [2023-08-29 09:30:56,638 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 207 places, 309 transitions, 1041 flow [2023-08-29 09:30:56,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 09:30:56,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 09:30:56,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1336 transitions. [2023-08-29 09:30:56,641 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5906277630415562 [2023-08-29 09:30:56,641 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1336 transitions. [2023-08-29 09:30:56,641 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1336 transitions. [2023-08-29 09:30:56,642 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 09:30:56,642 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1336 transitions. [2023-08-29 09:30:56,644 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 445.3333333333333) internal successors, (1336), 3 states have internal predecessors, (1336), 0 states have call successors, (0), 0 states 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 09:30:56,646 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 754.0) internal successors, (3016), 4 states have internal predecessors, (3016), 0 states have call successors, (0), 0 states 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 09:30:56,647 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 754.0) internal successors, (3016), 4 states have internal predecessors, (3016), 0 states have call successors, (0), 0 states 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 09:30:56,647 INFO L175 Difference]: Start difference. First operand has 205 places, 212 transitions, 439 flow. Second operand 3 states and 1336 transitions. [2023-08-29 09:30:56,647 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 207 places, 309 transitions, 1041 flow [2023-08-29 09:30:56,650 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 207 places, 309 transitions, 1041 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 09:30:56,652 INFO L231 Difference]: Finished difference. Result has 209 places, 221 transitions, 517 flow [2023-08-29 09:30:56,652 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=754, PETRI_DIFFERENCE_MINUEND_FLOW=439, PETRI_DIFFERENCE_MINUEND_PLACES=205, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=212, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=203, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=517, PETRI_PLACES=209, PETRI_TRANSITIONS=221} [2023-08-29 09:30:56,653 INFO L281 CegarLoopForPetriNet]: 250 programPoint places, -41 predicate places. [2023-08-29 09:30:56,653 INFO L495 AbstractCegarLoop]: Abstraction has has 209 places, 221 transitions, 517 flow [2023-08-29 09:30:56,653 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 380.0) internal successors, (1140), 3 states have internal predecessors, (1140), 0 states have call successors, (0), 0 states 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 09:30:56,654 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 09:30:56,654 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 09:30:56,654 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-29 09:30:56,654 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err3ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 101 more)] === [2023-08-29 09:30:56,654 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 09:30:56,654 INFO L85 PathProgramCache]: Analyzing trace with hash -1680471563, now seen corresponding path program 1 times [2023-08-29 09:30:56,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 09:30:56,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536281429] [2023-08-29 09:30:56,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 09:30:56,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 09:30:56,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 09:30:56,869 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 09:30:56,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 09:30:56,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536281429] [2023-08-29 09:30:56,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [536281429] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 09:30:56,870 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 09:30:56,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 09:30:56,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196481042] [2023-08-29 09:30:56,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 09:30:56,870 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 09:30:56,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 09:30:56,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 09:30:56,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 09:30:57,036 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 343 out of 754 [2023-08-29 09:30:57,038 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 209 places, 221 transitions, 517 flow. Second operand has 6 states, 6 states have (on average 344.8333333333333) internal successors, (2069), 6 states have internal predecessors, (2069), 0 states have call successors, (0), 0 states 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 09:30:57,038 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 09:30:57,038 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 343 of 754 [2023-08-29 09:30:57,038 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand