./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/pthread-ext/46_monabsex2_vs-b.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/pthread-ext/46_monabsex2_vs-b.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 cb0da49952f084f4179c44b957c91689c392bf769782a6b0853667237fdff1db --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-28 18:07:13,562 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-28 18:07:13,563 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-28 18:07:13,597 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-28 18:07:13,598 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-28 18:07:13,600 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-28 18:07:13,601 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-28 18:07:13,603 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-28 18:07:13,605 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-28 18:07:13,608 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-28 18:07:13,609 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-28 18:07:13,611 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-28 18:07:13,611 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-28 18:07:13,612 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-28 18:07:13,613 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-28 18:07:13,617 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-28 18:07:13,618 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-28 18:07:13,618 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-28 18:07:13,619 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-28 18:07:13,620 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-28 18:07:13,628 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-28 18:07:13,629 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-28 18:07:13,630 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-28 18:07:13,631 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-28 18:07:13,632 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-28 18:07:13,633 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-28 18:07:13,633 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-28 18:07:13,633 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-28 18:07:13,634 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-28 18:07:13,634 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-28 18:07:13,634 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-28 18:07:13,635 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-28 18:07:13,635 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-28 18:07:13,636 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-28 18:07:13,636 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-28 18:07:13,637 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-28 18:07:13,637 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-28 18:07:13,637 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-28 18:07:13,638 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-28 18:07:13,638 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-28 18:07:13,639 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-28 18:07:13,639 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-28 18:07:13,663 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-28 18:07:13,664 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-28 18:07:13,665 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-28 18:07:13,665 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-28 18:07:13,666 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-28 18:07:13,666 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-28 18:07:13,666 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-28 18:07:13,666 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-28 18:07:13,666 INFO L138 SettingsManager]: * Use SBE=true [2023-08-28 18:07:13,667 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-28 18:07:13,667 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-28 18:07:13,667 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-28 18:07:13,667 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-28 18:07:13,668 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-28 18:07:13,668 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-28 18:07:13,668 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-28 18:07:13,668 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-28 18:07:13,668 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-28 18:07:13,668 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-28 18:07:13,668 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-28 18:07:13,669 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-28 18:07:13,669 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-28 18:07:13,669 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-28 18:07:13,669 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-28 18:07:13,669 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-28 18:07:13,669 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-28 18:07:13,670 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-28 18:07:13,670 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-28 18:07:13,670 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-28 18:07:13,670 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-28 18:07:13,670 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-28 18:07:13,670 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-28 18:07:13,671 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-28 18:07:13,671 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-28 18:07:13,671 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-28 18:07:13,671 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-28 18:07:13,671 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-28 18:07:13,671 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cb0da49952f084f4179c44b957c91689c392bf769782a6b0853667237fdff1db Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-28 18:07:13,878 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-28 18:07:13,899 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-28 18:07:13,900 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-28 18:07:13,901 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-28 18:07:13,901 INFO L275 PluginConnector]: CDTParser initialized [2023-08-28 18:07:13,902 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/46_monabsex2_vs-b.i [2023-08-28 18:07:14,875 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-28 18:07:15,072 INFO L351 CDTParser]: Found 1 translation units. [2023-08-28 18:07:15,073 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/46_monabsex2_vs-b.i [2023-08-28 18:07:15,086 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9a768fe78/fcdf4309c407412b953b19c43b273a6b/FLAGe12181713 [2023-08-28 18:07:15,096 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9a768fe78/fcdf4309c407412b953b19c43b273a6b [2023-08-28 18:07:15,098 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-28 18:07:15,099 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-28 18:07:15,100 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-28 18:07:15,100 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-28 18:07:15,102 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-28 18:07:15,104 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.08 06:07:15" (1/1) ... [2023-08-28 18:07:15,105 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52aa34cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 06:07:15, skipping insertion in model container [2023-08-28 18:07:15,105 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.08 06:07:15" (1/1) ... [2023-08-28 18:07:15,109 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-28 18:07:15,144 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-28 18:07:15,322 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/46_monabsex2_vs-b.i[29939,29952] [2023-08-28 18:07:15,328 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-28 18:07:15,336 INFO L203 MainTranslator]: Completed pre-run [2023-08-28 18:07:15,361 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/46_monabsex2_vs-b.i[29939,29952] [2023-08-28 18:07:15,363 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-28 18:07:15,388 INFO L208 MainTranslator]: Completed translation [2023-08-28 18:07:15,390 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 06:07:15 WrapperNode [2023-08-28 18:07:15,391 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-28 18:07:15,392 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-28 18:07:15,392 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-28 18:07:15,392 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-28 18:07:15,397 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 06:07:15" (1/1) ... [2023-08-28 18:07:15,421 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 06:07:15" (1/1) ... [2023-08-28 18:07:15,436 INFO L138 Inliner]: procedures = 166, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 24 [2023-08-28 18:07:15,436 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-28 18:07:15,437 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-28 18:07:15,437 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-28 18:07:15,438 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-28 18:07:15,448 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 06:07:15" (1/1) ... [2023-08-28 18:07:15,448 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 06:07:15" (1/1) ... [2023-08-28 18:07:15,451 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 06:07:15" (1/1) ... [2023-08-28 18:07:15,451 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 06:07:15" (1/1) ... [2023-08-28 18:07:15,460 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 06:07:15" (1/1) ... [2023-08-28 18:07:15,464 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 06:07:15" (1/1) ... [2023-08-28 18:07:15,470 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 06:07:15" (1/1) ... [2023-08-28 18:07:15,471 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 06:07:15" (1/1) ... [2023-08-28 18:07:15,473 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-28 18:07:15,475 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-28 18:07:15,476 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-28 18:07:15,476 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-28 18:07:15,476 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 06:07:15" (1/1) ... [2023-08-28 18:07:15,480 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-28 18:07:15,488 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-28 18:07:15,510 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) [2023-08-28 18:07:15,537 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 [2023-08-28 18:07:15,547 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2023-08-28 18:07:15,547 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2023-08-28 18:07:15,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-28 18:07:15,548 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-28 18:07:15,548 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-28 18:07:15,548 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-28 18:07:15,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-28 18:07:15,548 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-28 18:07:15,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-28 18:07:15,549 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-28 18:07:15,687 INFO L236 CfgBuilder]: Building ICFG [2023-08-28 18:07:15,693 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-28 18:07:15,816 INFO L277 CfgBuilder]: Performing block encoding [2023-08-28 18:07:15,821 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-28 18:07:15,821 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-08-28 18:07:15,823 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.08 06:07:15 BoogieIcfgContainer [2023-08-28 18:07:15,823 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-28 18:07:15,825 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-28 18:07:15,825 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-28 18:07:15,827 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-28 18:07:15,827 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.08 06:07:15" (1/3) ... [2023-08-28 18:07:15,827 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38abd06b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.08 06:07:15, skipping insertion in model container [2023-08-28 18:07:15,828 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 06:07:15" (2/3) ... [2023-08-28 18:07:15,828 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38abd06b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.08 06:07:15, skipping insertion in model container [2023-08-28 18:07:15,828 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.08 06:07:15" (3/3) ... [2023-08-28 18:07:15,829 INFO L112 eAbstractionObserver]: Analyzing ICFG 46_monabsex2_vs-b.i [2023-08-28 18:07:15,834 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-28 18:07:15,840 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-28 18:07:15,840 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2023-08-28 18:07:15,840 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-28 18:07:15,873 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-28 18:07:15,898 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 60 places, 60 transitions, 125 flow [2023-08-28 18:07:15,928 INFO L130 PetriNetUnfolder]: 4/70 cut-off events. [2023-08-28 18:07:15,928 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-28 18:07:15,932 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 70 events. 4/70 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 94 event pairs, 0 based on Foata normal form. 0/59 useless extension candidates. Maximal degree in co-relation 46. Up to 4 conditions per place. [2023-08-28 18:07:15,932 INFO L82 GeneralOperation]: Start removeDead. Operand has 60 places, 60 transitions, 125 flow [2023-08-28 18:07:15,936 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 60 places, 60 transitions, 125 flow [2023-08-28 18:07:15,939 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-28 18:07:15,950 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 60 places, 60 transitions, 125 flow [2023-08-28 18:07:15,954 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 60 places, 60 transitions, 125 flow [2023-08-28 18:07:15,955 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 60 places, 60 transitions, 125 flow [2023-08-28 18:07:15,975 INFO L130 PetriNetUnfolder]: 4/70 cut-off events. [2023-08-28 18:07:15,976 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-28 18:07:15,976 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 70 events. 4/70 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 94 event pairs, 0 based on Foata normal form. 0/59 useless extension candidates. Maximal degree in co-relation 46. Up to 4 conditions per place. [2023-08-28 18:07:15,977 INFO L119 LiptonReduction]: Number of co-enabled transitions 884 [2023-08-28 18:07:17,319 INFO L134 LiptonReduction]: Checked pairs total: 745 [2023-08-28 18:07:17,320 INFO L136 LiptonReduction]: Total number of compositions: 64 [2023-08-28 18:07:17,329 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-28 18:07:17,333 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;@6db4d64a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-28 18:07:17,333 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2023-08-28 18:07:17,335 INFO L130 PetriNetUnfolder]: 0/5 cut-off events. [2023-08-28 18:07:17,336 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-28 18:07:17,336 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-28 18:07:17,336 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-28 18:07:17,336 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err3ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err4ASSERT_VIOLATIONDATA_RACE, thr1Err4ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-08-28 18:07:17,339 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-28 18:07:17,340 INFO L85 PathProgramCache]: Analyzing trace with hash 7952083, now seen corresponding path program 1 times [2023-08-28 18:07:17,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-28 18:07:17,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522994719] [2023-08-28 18:07:17,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-28 18:07:17,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-28 18:07:17,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-28 18:07:17,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-28 18:07:17,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-28 18:07:17,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522994719] [2023-08-28 18:07:17,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [522994719] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-28 18:07:17,482 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-28 18:07:17,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-28 18:07:17,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216161971] [2023-08-28 18:07:17,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-28 18:07:17,488 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-28 18:07:17,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-28 18:07:17,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-28 18:07:17,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-28 18:07:17,504 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 124 [2023-08-28 18:07:17,505 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 15 places, 12 transitions, 29 flow. Second operand has 2 states, 2 states have (on average 57.0) internal successors, (114), 2 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:07:17,505 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-28 18:07:17,506 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 124 [2023-08-28 18:07:17,506 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-28 18:07:17,516 INFO L130 PetriNetUnfolder]: 2/11 cut-off events. [2023-08-28 18:07:17,516 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-28 18:07:17,516 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27 conditions, 11 events. 2/11 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 9 event pairs, 2 based on Foata normal form. 0/11 useless extension candidates. Maximal degree in co-relation 14. Up to 11 conditions per place. [2023-08-28 18:07:17,517 INFO L137 encePairwiseOnDemand]: 118/124 looper letters, 0 selfloop transitions, 0 changer transitions 6/6 dead transitions. [2023-08-28 18:07:17,517 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 10 places, 6 transitions, 27 flow [2023-08-28 18:07:17,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-28 18:07:17,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-28 18:07:17,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 121 transitions. [2023-08-28 18:07:17,524 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4879032258064516 [2023-08-28 18:07:17,525 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 121 transitions. [2023-08-28 18:07:17,525 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 121 transitions. [2023-08-28 18:07:17,526 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-28 18:07:17,527 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 121 transitions. [2023-08-28 18:07:17,529 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 60.5) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:07:17,531 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 124.0) internal successors, (372), 3 states have internal predecessors, (372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:07:17,531 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 124.0) internal successors, (372), 3 states have internal predecessors, (372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:07:17,532 INFO L175 Difference]: Start difference. First operand has 15 places, 12 transitions, 29 flow. Second operand 2 states and 121 transitions. [2023-08-28 18:07:17,533 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 10 places, 6 transitions, 27 flow [2023-08-28 18:07:17,534 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 10 places, 6 transitions, 27 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-28 18:07:17,535 INFO L231 Difference]: Finished difference. Result has 10 places, 0 transitions, 0 flow [2023-08-28 18:07:17,536 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=17, PETRI_DIFFERENCE_MINUEND_PLACES=9, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=6, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=6, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=0, PETRI_PLACES=10, PETRI_TRANSITIONS=0} [2023-08-28 18:07:17,538 INFO L281 CegarLoopForPetriNet]: 15 programPoint places, -5 predicate places. [2023-08-28 18:07:17,538 INFO L495 AbstractCegarLoop]: Abstraction has has 10 places, 0 transitions, 0 flow [2023-08-28 18:07:17,539 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 57.0) internal successors, (114), 2 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:07:17,540 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err3ASSERT_VIOLATIONDATA_RACE (9 of 10 remaining) [2023-08-28 18:07:17,541 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err1ASSERT_VIOLATIONDATA_RACE (8 of 10 remaining) [2023-08-28 18:07:17,541 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err4ASSERT_VIOLATIONDATA_RACE (7 of 10 remaining) [2023-08-28 18:07:17,541 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err4ASSERT_VIOLATIONDATA_RACE (6 of 10 remaining) [2023-08-28 18:07:17,541 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err2ASSERT_VIOLATIONDATA_RACE (5 of 10 remaining) [2023-08-28 18:07:17,541 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err2ASSERT_VIOLATIONDATA_RACE (4 of 10 remaining) [2023-08-28 18:07:17,542 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err1ASSERT_VIOLATIONDATA_RACE (3 of 10 remaining) [2023-08-28 18:07:17,542 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONDATA_RACE (2 of 10 remaining) [2023-08-28 18:07:17,542 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err3ASSERT_VIOLATIONDATA_RACE (1 of 10 remaining) [2023-08-28 18:07:17,542 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONDATA_RACE (0 of 10 remaining) [2023-08-28 18:07:17,542 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-28 18:07:17,543 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-28 18:07:17,544 INFO L307 ceAbstractionStarter]: Result for error location AllErrorsAtOnce was SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE (1/2) [2023-08-28 18:07:17,548 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 60 places, 60 transitions, 125 flow [2023-08-28 18:07:17,554 INFO L130 PetriNetUnfolder]: 4/70 cut-off events. [2023-08-28 18:07:17,554 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-28 18:07:17,555 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 70 events. 4/70 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 94 event pairs, 0 based on Foata normal form. 0/59 useless extension candidates. Maximal degree in co-relation 46. Up to 4 conditions per place. [2023-08-28 18:07:17,555 INFO L82 GeneralOperation]: Start removeDead. Operand has 60 places, 60 transitions, 125 flow [2023-08-28 18:07:17,556 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 60 places, 60 transitions, 125 flow [2023-08-28 18:07:17,556 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-28 18:07:17,556 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 60 places, 60 transitions, 125 flow [2023-08-28 18:07:17,556 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 60 places, 60 transitions, 125 flow [2023-08-28 18:07:17,556 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 60 places, 60 transitions, 125 flow [2023-08-28 18:07:17,563 INFO L130 PetriNetUnfolder]: 4/70 cut-off events. [2023-08-28 18:07:17,563 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-28 18:07:17,563 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 70 events. 4/70 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 94 event pairs, 0 based on Foata normal form. 0/59 useless extension candidates. Maximal degree in co-relation 46. Up to 4 conditions per place. [2023-08-28 18:07:17,564 INFO L119 LiptonReduction]: Number of co-enabled transitions 884 [2023-08-28 18:07:18,679 INFO L134 LiptonReduction]: Checked pairs total: 745 [2023-08-28 18:07:18,679 INFO L136 LiptonReduction]: Total number of compositions: 64 [2023-08-28 18:07:18,681 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-28 18:07:18,681 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;@6db4d64a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-28 18:07:18,681 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-28 18:07:18,683 INFO L130 PetriNetUnfolder]: 0/13 cut-off events. [2023-08-28 18:07:18,683 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-28 18:07:18,684 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-28 18:07:18,684 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2023-08-28 18:07:18,684 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-28 18:07:18,684 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-28 18:07:18,684 INFO L85 PathProgramCache]: Analyzing trace with hash 945289085, now seen corresponding path program 1 times [2023-08-28 18:07:18,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-28 18:07:18,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150388075] [2023-08-28 18:07:18,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-28 18:07:18,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-28 18:07:18,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-28 18:07:18,704 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-28 18:07:18,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-28 18:07:18,723 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-28 18:07:18,723 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-28 18:07:18,724 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-28 18:07:18,724 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-28 18:07:18,724 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-28 18:07:18,724 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (2/2) [2023-08-28 18:07:18,725 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-28 18:07:18,725 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-08-28 18:07:18,734 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-28 18:07:18,736 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 95 places, 95 transitions, 202 flow [2023-08-28 18:07:18,749 INFO L130 PetriNetUnfolder]: 7/117 cut-off events. [2023-08-28 18:07:18,751 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-28 18:07:18,752 INFO L83 FinitePrefix]: Finished finitePrefix Result has 127 conditions, 117 events. 7/117 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 254 event pairs, 0 based on Foata normal form. 0/97 useless extension candidates. Maximal degree in co-relation 80. Up to 6 conditions per place. [2023-08-28 18:07:18,753 INFO L82 GeneralOperation]: Start removeDead. Operand has 95 places, 95 transitions, 202 flow [2023-08-28 18:07:18,754 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 95 places, 95 transitions, 202 flow [2023-08-28 18:07:18,754 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-28 18:07:18,754 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 95 places, 95 transitions, 202 flow [2023-08-28 18:07:18,754 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 95 places, 95 transitions, 202 flow [2023-08-28 18:07:18,754 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 95 places, 95 transitions, 202 flow [2023-08-28 18:07:18,766 INFO L130 PetriNetUnfolder]: 7/117 cut-off events. [2023-08-28 18:07:18,766 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-28 18:07:18,767 INFO L83 FinitePrefix]: Finished finitePrefix Result has 127 conditions, 117 events. 7/117 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 254 event pairs, 0 based on Foata normal form. 0/97 useless extension candidates. Maximal degree in co-relation 80. Up to 6 conditions per place. [2023-08-28 18:07:18,768 INFO L119 LiptonReduction]: Number of co-enabled transitions 4148 [2023-08-28 18:07:19,377 INFO L134 LiptonReduction]: Checked pairs total: 13239 [2023-08-28 18:07:19,378 INFO L136 LiptonReduction]: Total number of compositions: 52 [2023-08-28 18:07:19,379 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-28 18:07:19,380 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;@6db4d64a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-28 18:07:19,380 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2023-08-28 18:07:19,381 INFO L130 PetriNetUnfolder]: 0/7 cut-off events. [2023-08-28 18:07:19,381 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-28 18:07:19,382 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-28 18:07:19,382 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-28 18:07:19,382 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2023-08-28 18:07:19,382 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-28 18:07:19,382 INFO L85 PathProgramCache]: Analyzing trace with hash 489208421, now seen corresponding path program 1 times [2023-08-28 18:07:19,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-28 18:07:19,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158977720] [2023-08-28 18:07:19,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-28 18:07:19,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-28 18:07:19,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-28 18:07:19,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-28 18:07:19,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-28 18:07:19,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158977720] [2023-08-28 18:07:19,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [158977720] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-28 18:07:19,427 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-28 18:07:19,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-28 18:07:19,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831983726] [2023-08-28 18:07:19,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-28 18:07:19,428 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-28 18:07:19,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-28 18:07:19,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-28 18:07:19,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-28 18:07:19,442 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 147 [2023-08-28 18:07:19,442 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 48 transitions, 108 flow. Second operand has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 3 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:07:19,442 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-28 18:07:19,443 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 147 [2023-08-28 18:07:19,443 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-28 18:07:19,565 INFO L130 PetriNetUnfolder]: 403/959 cut-off events. [2023-08-28 18:07:19,566 INFO L131 PetriNetUnfolder]: For 33/33 co-relation queries the response was YES. [2023-08-28 18:07:19,570 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1691 conditions, 959 events. 403/959 cut-off events. For 33/33 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 6257 event pairs, 156 based on Foata normal form. 0/845 useless extension candidates. Maximal degree in co-relation 1344. Up to 485 conditions per place. [2023-08-28 18:07:19,577 INFO L137 encePairwiseOnDemand]: 138/147 looper letters, 40 selfloop transitions, 6 changer transitions 0/68 dead transitions. [2023-08-28 18:07:19,577 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 68 transitions, 245 flow [2023-08-28 18:07:19,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-28 18:07:19,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-28 18:07:19,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 287 transitions. [2023-08-28 18:07:19,584 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6507936507936508 [2023-08-28 18:07:19,584 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 287 transitions. [2023-08-28 18:07:19,584 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 287 transitions. [2023-08-28 18:07:19,586 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-28 18:07:19,586 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 287 transitions. [2023-08-28 18:07:19,588 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 95.66666666666667) internal successors, (287), 3 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:07:19,590 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 147.0) internal successors, (588), 4 states have internal predecessors, (588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:07:19,590 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 147.0) internal successors, (588), 4 states have internal predecessors, (588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:07:19,590 INFO L175 Difference]: Start difference. First operand has 51 places, 48 transitions, 108 flow. Second operand 3 states and 287 transitions. [2023-08-28 18:07:19,590 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 68 transitions, 245 flow [2023-08-28 18:07:19,591 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 68 transitions, 243 flow, removed 1 selfloop flow, removed 0 redundant places. [2023-08-28 18:07:19,592 INFO L231 Difference]: Finished difference. Result has 54 places, 53 transitions, 156 flow [2023-08-28 18:07:19,592 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=156, PETRI_PLACES=54, PETRI_TRANSITIONS=53} [2023-08-28 18:07:19,593 INFO L281 CegarLoopForPetriNet]: 51 programPoint places, 3 predicate places. [2023-08-28 18:07:19,593 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 53 transitions, 156 flow [2023-08-28 18:07:19,593 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 3 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:07:19,593 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-28 18:07:19,593 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-28 18:07:19,593 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-28 18:07:19,594 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2023-08-28 18:07:19,594 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-28 18:07:19,594 INFO L85 PathProgramCache]: Analyzing trace with hash 1184461898, now seen corresponding path program 1 times [2023-08-28 18:07:19,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-28 18:07:19,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248757795] [2023-08-28 18:07:19,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-28 18:07:19,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-28 18:07:19,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-28 18:07:19,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-28 18:07:19,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-28 18:07:19,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248757795] [2023-08-28 18:07:19,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [248757795] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-28 18:07:19,630 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-28 18:07:19,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-28 18:07:19,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029566825] [2023-08-28 18:07:19,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-28 18:07:19,630 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-28 18:07:19,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-28 18:07:19,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-28 18:07:19,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-28 18:07:19,652 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 147 [2023-08-28 18:07:19,654 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 53 transitions, 156 flow. Second operand has 3 states, 3 states have (on average 75.0) internal successors, (225), 3 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:07:19,654 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-28 18:07:19,655 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 147 [2023-08-28 18:07:19,655 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-28 18:07:19,766 INFO L130 PetriNetUnfolder]: 686/1439 cut-off events. [2023-08-28 18:07:19,767 INFO L131 PetriNetUnfolder]: For 202/202 co-relation queries the response was YES. [2023-08-28 18:07:19,769 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2907 conditions, 1439 events. 686/1439 cut-off events. For 202/202 co-relation queries the response was YES. Maximal size of possible extension queue 130. Compared 9904 event pairs, 286 based on Foata normal form. 0/1344 useless extension candidates. Maximal degree in co-relation 1656. Up to 593 conditions per place. [2023-08-28 18:07:19,774 INFO L137 encePairwiseOnDemand]: 133/147 looper letters, 47 selfloop transitions, 10 changer transitions 0/77 dead transitions. [2023-08-28 18:07:19,775 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 77 transitions, 331 flow [2023-08-28 18:07:19,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-28 18:07:19,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-28 18:07:19,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 277 transitions. [2023-08-28 18:07:19,776 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6281179138321995 [2023-08-28 18:07:19,776 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 277 transitions. [2023-08-28 18:07:19,776 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 277 transitions. [2023-08-28 18:07:19,776 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-28 18:07:19,776 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 277 transitions. [2023-08-28 18:07:19,777 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 92.33333333333333) internal successors, (277), 3 states have internal predecessors, (277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:07:19,778 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 147.0) internal successors, (588), 4 states have internal predecessors, (588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:07:19,779 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 147.0) internal successors, (588), 4 states have internal predecessors, (588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:07:19,779 INFO L175 Difference]: Start difference. First operand has 54 places, 53 transitions, 156 flow. Second operand 3 states and 277 transitions. [2023-08-28 18:07:19,779 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 77 transitions, 331 flow [2023-08-28 18:07:19,782 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 77 transitions, 317 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-28 18:07:19,784 INFO L231 Difference]: Finished difference. Result has 56 places, 63 transitions, 232 flow [2023-08-28 18:07:19,784 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=144, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=232, PETRI_PLACES=56, PETRI_TRANSITIONS=63} [2023-08-28 18:07:19,785 INFO L281 CegarLoopForPetriNet]: 51 programPoint places, 5 predicate places. [2023-08-28 18:07:19,785 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 63 transitions, 232 flow [2023-08-28 18:07:19,786 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 75.0) internal successors, (225), 3 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:07:19,786 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-28 18:07:19,786 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-28 18:07:19,786 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-28 18:07:19,786 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err3ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2023-08-28 18:07:19,790 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-28 18:07:19,790 INFO L85 PathProgramCache]: Analyzing trace with hash 37674497, now seen corresponding path program 1 times [2023-08-28 18:07:19,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-28 18:07:19,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807380307] [2023-08-28 18:07:19,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-28 18:07:19,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-28 18:07:19,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-28 18:07:19,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-28 18:07:19,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-28 18:07:19,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807380307] [2023-08-28 18:07:19,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [807380307] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-28 18:07:19,840 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-28 18:07:19,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-28 18:07:19,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763638653] [2023-08-28 18:07:19,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-28 18:07:19,840 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-28 18:07:19,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-28 18:07:19,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-28 18:07:19,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-28 18:07:19,859 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 147 [2023-08-28 18:07:19,859 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 63 transitions, 232 flow. Second operand has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:07:19,859 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-28 18:07:19,859 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 147 [2023-08-28 18:07:19,860 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-28 18:07:19,963 INFO L130 PetriNetUnfolder]: 548/1254 cut-off events. [2023-08-28 18:07:19,964 INFO L131 PetriNetUnfolder]: For 485/505 co-relation queries the response was YES. [2023-08-28 18:07:19,966 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2884 conditions, 1254 events. 548/1254 cut-off events. For 485/505 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 8607 event pairs, 350 based on Foata normal form. 2/1141 useless extension candidates. Maximal degree in co-relation 1740. Up to 845 conditions per place. [2023-08-28 18:07:19,971 INFO L137 encePairwiseOnDemand]: 141/147 looper letters, 39 selfloop transitions, 8 changer transitions 0/78 dead transitions. [2023-08-28 18:07:19,971 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 78 transitions, 381 flow [2023-08-28 18:07:19,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-28 18:07:19,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-28 18:07:19,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 268 transitions. [2023-08-28 18:07:19,973 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6077097505668935 [2023-08-28 18:07:19,973 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 268 transitions. [2023-08-28 18:07:19,973 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 268 transitions. [2023-08-28 18:07:19,973 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-28 18:07:19,974 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 268 transitions. [2023-08-28 18:07:19,975 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:07:19,976 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 147.0) internal successors, (588), 4 states have internal predecessors, (588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:07:19,976 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 147.0) internal successors, (588), 4 states have internal predecessors, (588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:07:19,976 INFO L175 Difference]: Start difference. First operand has 56 places, 63 transitions, 232 flow. Second operand 3 states and 268 transitions. [2023-08-28 18:07:19,976 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 78 transitions, 381 flow [2023-08-28 18:07:19,979 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 78 transitions, 355 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-28 18:07:19,981 INFO L231 Difference]: Finished difference. Result has 57 places, 69 transitions, 272 flow [2023-08-28 18:07:19,981 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=212, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=272, PETRI_PLACES=57, PETRI_TRANSITIONS=69} [2023-08-28 18:07:19,983 INFO L281 CegarLoopForPetriNet]: 51 programPoint places, 6 predicate places. [2023-08-28 18:07:19,983 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 69 transitions, 272 flow [2023-08-28 18:07:19,983 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:07:19,983 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-28 18:07:19,983 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-28 18:07:19,985 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-28 18:07:19,986 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err4ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2023-08-28 18:07:19,986 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-28 18:07:19,986 INFO L85 PathProgramCache]: Analyzing trace with hash 1376069292, now seen corresponding path program 1 times [2023-08-28 18:07:19,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-28 18:07:19,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169595819] [2023-08-28 18:07:19,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-28 18:07:19,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-28 18:07:20,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-28 18:07:20,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-28 18:07:20,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-28 18:07:20,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169595819] [2023-08-28 18:07:20,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [169595819] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-28 18:07:20,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-28 18:07:20,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-28 18:07:20,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506625278] [2023-08-28 18:07:20,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-28 18:07:20,026 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-28 18:07:20,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-28 18:07:20,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-28 18:07:20,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-28 18:07:20,038 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 147 [2023-08-28 18:07:20,038 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 69 transitions, 272 flow. Second operand has 3 states, 3 states have (on average 82.66666666666667) internal successors, (248), 3 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:07:20,039 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-28 18:07:20,039 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 147 [2023-08-28 18:07:20,039 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-28 18:07:20,152 INFO L130 PetriNetUnfolder]: 577/1301 cut-off events. [2023-08-28 18:07:20,152 INFO L131 PetriNetUnfolder]: For 678/720 co-relation queries the response was YES. [2023-08-28 18:07:20,155 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3090 conditions, 1301 events. 577/1301 cut-off events. For 678/720 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 8846 event pairs, 333 based on Foata normal form. 6/1166 useless extension candidates. Maximal degree in co-relation 1978. Up to 842 conditions per place. [2023-08-28 18:07:20,159 INFO L137 encePairwiseOnDemand]: 142/147 looper letters, 39 selfloop transitions, 6 changer transitions 1/82 dead transitions. [2023-08-28 18:07:20,160 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 82 transitions, 409 flow [2023-08-28 18:07:20,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-28 18:07:20,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-28 18:07:20,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 271 transitions. [2023-08-28 18:07:20,162 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6145124716553289 [2023-08-28 18:07:20,162 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 271 transitions. [2023-08-28 18:07:20,162 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 271 transitions. [2023-08-28 18:07:20,162 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-28 18:07:20,162 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 271 transitions. [2023-08-28 18:07:20,163 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 90.33333333333333) internal successors, (271), 3 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:07:20,163 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 147.0) internal successors, (588), 4 states have internal predecessors, (588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:07:20,166 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 147.0) internal successors, (588), 4 states have internal predecessors, (588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:07:20,166 INFO L175 Difference]: Start difference. First operand has 57 places, 69 transitions, 272 flow. Second operand 3 states and 271 transitions. [2023-08-28 18:07:20,166 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 82 transitions, 409 flow [2023-08-28 18:07:20,168 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 82 transitions, 401 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-28 18:07:20,169 INFO L231 Difference]: Finished difference. Result has 59 places, 73 transitions, 306 flow [2023-08-28 18:07:20,170 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=264, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=306, PETRI_PLACES=59, PETRI_TRANSITIONS=73} [2023-08-28 18:07:20,170 INFO L281 CegarLoopForPetriNet]: 51 programPoint places, 8 predicate places. [2023-08-28 18:07:20,171 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 73 transitions, 306 flow [2023-08-28 18:07:20,171 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 82.66666666666667) internal successors, (248), 3 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:07:20,171 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-28 18:07:20,171 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-28 18:07:20,171 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-28 18:07:20,171 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err3ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2023-08-28 18:07:20,172 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-28 18:07:20,172 INFO L85 PathProgramCache]: Analyzing trace with hash -684957744, now seen corresponding path program 1 times [2023-08-28 18:07:20,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-28 18:07:20,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848916900] [2023-08-28 18:07:20,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-28 18:07:20,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-28 18:07:20,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-28 18:07:20,208 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-28 18:07:20,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-28 18:07:20,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848916900] [2023-08-28 18:07:20,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [848916900] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-28 18:07:20,211 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-28 18:07:20,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-28 18:07:20,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040183943] [2023-08-28 18:07:20,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-28 18:07:20,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-28 18:07:20,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-28 18:07:20,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-28 18:07:20,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-28 18:07:20,230 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 147 [2023-08-28 18:07:20,231 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 73 transitions, 306 flow. Second operand has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:07:20,231 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-28 18:07:20,231 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 147 [2023-08-28 18:07:20,231 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-28 18:07:20,354 INFO L130 PetriNetUnfolder]: 663/1407 cut-off events. [2023-08-28 18:07:20,355 INFO L131 PetriNetUnfolder]: For 794/882 co-relation queries the response was YES. [2023-08-28 18:07:20,358 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3622 conditions, 1407 events. 663/1407 cut-off events. For 794/882 co-relation queries the response was YES. Maximal size of possible extension queue 134. Compared 9464 event pairs, 350 based on Foata normal form. 28/1326 useless extension candidates. Maximal degree in co-relation 2704. Up to 963 conditions per place. [2023-08-28 18:07:20,363 INFO L137 encePairwiseOnDemand]: 140/147 looper letters, 47 selfloop transitions, 11 changer transitions 0/88 dead transitions. [2023-08-28 18:07:20,363 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 88 transitions, 477 flow [2023-08-28 18:07:20,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-28 18:07:20,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-28 18:07:20,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 267 transitions. [2023-08-28 18:07:20,364 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6054421768707483 [2023-08-28 18:07:20,364 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 267 transitions. [2023-08-28 18:07:20,364 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 267 transitions. [2023-08-28 18:07:20,364 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-28 18:07:20,364 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 267 transitions. [2023-08-28 18:07:20,365 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 89.0) internal successors, (267), 3 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:07:20,366 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 147.0) internal successors, (588), 4 states have internal predecessors, (588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:07:20,366 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 147.0) internal successors, (588), 4 states have internal predecessors, (588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:07:20,366 INFO L175 Difference]: Start difference. First operand has 59 places, 73 transitions, 306 flow. Second operand 3 states and 267 transitions. [2023-08-28 18:07:20,366 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 88 transitions, 477 flow [2023-08-28 18:07:20,368 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 88 transitions, 470 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-28 18:07:20,370 INFO L231 Difference]: Finished difference. Result has 62 places, 80 transitions, 388 flow [2023-08-28 18:07:20,370 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=300, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=388, PETRI_PLACES=62, PETRI_TRANSITIONS=80} [2023-08-28 18:07:20,370 INFO L281 CegarLoopForPetriNet]: 51 programPoint places, 11 predicate places. [2023-08-28 18:07:20,370 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 80 transitions, 388 flow [2023-08-28 18:07:20,371 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:07:20,371 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-28 18:07:20,371 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-28 18:07:20,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-28 18:07:20,371 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thr1Err4ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2023-08-28 18:07:20,371 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-28 18:07:20,371 INFO L85 PathProgramCache]: Analyzing trace with hash -186067313, now seen corresponding path program 1 times [2023-08-28 18:07:20,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-28 18:07:20,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275309252] [2023-08-28 18:07:20,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-28 18:07:20,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-28 18:07:20,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-28 18:07:20,388 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-28 18:07:20,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-28 18:07:20,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275309252] [2023-08-28 18:07:20,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1275309252] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-28 18:07:20,388 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-28 18:07:20,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-28 18:07:20,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183430141] [2023-08-28 18:07:20,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-28 18:07:20,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-28 18:07:20,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-28 18:07:20,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-28 18:07:20,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-28 18:07:20,399 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 147 [2023-08-28 18:07:20,399 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 80 transitions, 388 flow. Second operand has 3 states, 3 states have (on average 82.66666666666667) internal successors, (248), 3 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:07:20,400 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-28 18:07:20,400 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 147 [2023-08-28 18:07:20,400 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-28 18:07:20,505 INFO L130 PetriNetUnfolder]: 666/1424 cut-off events. [2023-08-28 18:07:20,505 INFO L131 PetriNetUnfolder]: For 1479/1571 co-relation queries the response was YES. [2023-08-28 18:07:20,508 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3990 conditions, 1424 events. 666/1424 cut-off events. For 1479/1571 co-relation queries the response was YES. Maximal size of possible extension queue 136. Compared 9533 event pairs, 330 based on Foata normal form. 26/1327 useless extension candidates. Maximal degree in co-relation 2438. Up to 969 conditions per place. [2023-08-28 18:07:20,512 INFO L137 encePairwiseOnDemand]: 142/147 looper letters, 46 selfloop transitions, 7 changer transitions 5/95 dead transitions. [2023-08-28 18:07:20,512 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 95 transitions, 574 flow [2023-08-28 18:07:20,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-28 18:07:20,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-28 18:07:20,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 271 transitions. [2023-08-28 18:07:20,517 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6145124716553289 [2023-08-28 18:07:20,517 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 271 transitions. [2023-08-28 18:07:20,517 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 271 transitions. [2023-08-28 18:07:20,517 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-28 18:07:20,518 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 271 transitions. [2023-08-28 18:07:20,518 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 90.33333333333333) internal successors, (271), 3 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:07:20,519 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 147.0) internal successors, (588), 4 states have internal predecessors, (588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:07:20,520 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 147.0) internal successors, (588), 4 states have internal predecessors, (588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:07:20,520 INFO L175 Difference]: Start difference. First operand has 62 places, 80 transitions, 388 flow. Second operand 3 states and 271 transitions. [2023-08-28 18:07:20,520 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 95 transitions, 574 flow [2023-08-28 18:07:20,522 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 95 transitions, 552 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-28 18:07:20,524 INFO L231 Difference]: Finished difference. Result has 63 places, 80 transitions, 393 flow [2023-08-28 18:07:20,524 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=366, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=393, PETRI_PLACES=63, PETRI_TRANSITIONS=80} [2023-08-28 18:07:20,525 INFO L281 CegarLoopForPetriNet]: 51 programPoint places, 12 predicate places. [2023-08-28 18:07:20,525 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 80 transitions, 393 flow [2023-08-28 18:07:20,525 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 82.66666666666667) internal successors, (248), 3 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:07:20,525 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-28 18:07:20,525 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-28 18:07:20,525 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-28 18:07:20,526 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2023-08-28 18:07:20,527 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-28 18:07:20,527 INFO L85 PathProgramCache]: Analyzing trace with hash -881385935, now seen corresponding path program 1 times [2023-08-28 18:07:20,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-28 18:07:20,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945191183] [2023-08-28 18:07:20,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-28 18:07:20,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-28 18:07:20,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-28 18:07:20,570 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-28 18:07:20,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-28 18:07:20,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945191183] [2023-08-28 18:07:20,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1945191183] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-28 18:07:20,571 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-28 18:07:20,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-28 18:07:20,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421335014] [2023-08-28 18:07:20,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-28 18:07:20,571 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-28 18:07:20,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-28 18:07:20,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-28 18:07:20,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-28 18:07:20,582 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 147 [2023-08-28 18:07:20,582 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 80 transitions, 393 flow. Second operand has 4 states, 4 states have (on average 78.75) internal successors, (315), 4 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:07:20,582 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-28 18:07:20,582 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 147 [2023-08-28 18:07:20,582 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-28 18:07:20,725 INFO L130 PetriNetUnfolder]: 738/1652 cut-off events. [2023-08-28 18:07:20,725 INFO L131 PetriNetUnfolder]: For 1648/1744 co-relation queries the response was YES. [2023-08-28 18:07:20,729 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4647 conditions, 1652 events. 738/1652 cut-off events. For 1648/1744 co-relation queries the response was YES. Maximal size of possible extension queue 151. Compared 11814 event pairs, 151 based on Foata normal form. 34/1564 useless extension candidates. Maximal degree in co-relation 3676. Up to 935 conditions per place. [2023-08-28 18:07:20,734 INFO L137 encePairwiseOnDemand]: 139/147 looper letters, 59 selfloop transitions, 14 changer transitions 2/114 dead transitions. [2023-08-28 18:07:20,734 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 114 transitions, 701 flow [2023-08-28 18:07:20,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-28 18:07:20,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-28 18:07:20,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 350 transitions. [2023-08-28 18:07:20,736 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5952380952380952 [2023-08-28 18:07:20,736 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 350 transitions. [2023-08-28 18:07:20,736 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 350 transitions. [2023-08-28 18:07:20,736 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-28 18:07:20,736 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 350 transitions. [2023-08-28 18:07:20,737 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 87.5) internal successors, (350), 4 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:07:20,738 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 147.0) internal successors, (735), 5 states have internal predecessors, (735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:07:20,738 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 147.0) internal successors, (735), 5 states have internal predecessors, (735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:07:20,738 INFO L175 Difference]: Start difference. First operand has 63 places, 80 transitions, 393 flow. Second operand 4 states and 350 transitions. [2023-08-28 18:07:20,738 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 114 transitions, 701 flow [2023-08-28 18:07:20,742 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 114 transitions, 694 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-28 18:07:20,743 INFO L231 Difference]: Finished difference. Result has 68 places, 93 transitions, 520 flow [2023-08-28 18:07:20,744 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=386, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=520, PETRI_PLACES=68, PETRI_TRANSITIONS=93} [2023-08-28 18:07:20,744 INFO L281 CegarLoopForPetriNet]: 51 programPoint places, 17 predicate places. [2023-08-28 18:07:20,744 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 93 transitions, 520 flow [2023-08-28 18:07:20,744 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 78.75) internal successors, (315), 4 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:07:20,744 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-28 18:07:20,745 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-28 18:07:20,745 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-28 18:07:20,745 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2023-08-28 18:07:20,745 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-28 18:07:20,745 INFO L85 PathProgramCache]: Analyzing trace with hash 1539019739, now seen corresponding path program 2 times [2023-08-28 18:07:20,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-28 18:07:20,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617682980] [2023-08-28 18:07:20,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-28 18:07:20,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-28 18:07:20,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-28 18:07:20,771 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-28 18:07:20,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-28 18:07:20,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617682980] [2023-08-28 18:07:20,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1617682980] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-28 18:07:20,772 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-28 18:07:20,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-28 18:07:20,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392350922] [2023-08-28 18:07:20,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-28 18:07:20,772 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-28 18:07:20,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-28 18:07:20,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-28 18:07:20,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-28 18:07:20,786 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 147 [2023-08-28 18:07:20,787 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 93 transitions, 520 flow. Second operand has 4 states, 4 states have (on average 78.75) internal successors, (315), 4 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:07:20,787 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-28 18:07:20,787 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 147 [2023-08-28 18:07:20,787 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-28 18:07:20,894 INFO L130 PetriNetUnfolder]: 408/974 cut-off events. [2023-08-28 18:07:20,894 INFO L131 PetriNetUnfolder]: For 1515/1701 co-relation queries the response was YES. [2023-08-28 18:07:20,896 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3052 conditions, 974 events. 408/974 cut-off events. For 1515/1701 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 6466 event pairs, 117 based on Foata normal form. 100/1008 useless extension candidates. Maximal degree in co-relation 1617. Up to 462 conditions per place. [2023-08-28 18:07:20,900 INFO L137 encePairwiseOnDemand]: 139/147 looper letters, 51 selfloop transitions, 10 changer transitions 4/98 dead transitions. [2023-08-28 18:07:20,900 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 98 transitions, 648 flow [2023-08-28 18:07:20,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-28 18:07:20,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-28 18:07:20,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 429 transitions. [2023-08-28 18:07:20,901 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5836734693877551 [2023-08-28 18:07:20,901 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 429 transitions. [2023-08-28 18:07:20,901 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 429 transitions. [2023-08-28 18:07:20,902 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-28 18:07:20,902 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 429 transitions. [2023-08-28 18:07:20,903 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 85.8) internal successors, (429), 5 states have internal predecessors, (429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:07:20,904 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 147.0) internal successors, (882), 6 states have internal predecessors, (882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:07:20,904 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 147.0) internal successors, (882), 6 states have internal predecessors, (882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:07:20,904 INFO L175 Difference]: Start difference. First operand has 68 places, 93 transitions, 520 flow. Second operand 5 states and 429 transitions. [2023-08-28 18:07:20,904 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 98 transitions, 648 flow [2023-08-28 18:07:20,907 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 98 transitions, 642 flow, removed 3 selfloop flow, removed 0 redundant places. [2023-08-28 18:07:20,908 INFO L231 Difference]: Finished difference. Result has 71 places, 76 transitions, 432 flow [2023-08-28 18:07:20,908 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=414, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=432, PETRI_PLACES=71, PETRI_TRANSITIONS=76} [2023-08-28 18:07:20,909 INFO L281 CegarLoopForPetriNet]: 51 programPoint places, 20 predicate places. [2023-08-28 18:07:20,909 INFO L495 AbstractCegarLoop]: Abstraction has has 71 places, 76 transitions, 432 flow [2023-08-28 18:07:20,909 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 78.75) internal successors, (315), 4 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-28 18:07:20,909 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-28 18:07:20,909 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-28 18:07:20,909 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-28 18:07:20,910 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2023-08-28 18:07:20,910 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-28 18:07:20,910 INFO L85 PathProgramCache]: Analyzing trace with hash 592349978, now seen corresponding path program 1 times [2023-08-28 18:07:20,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-28 18:07:20,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651147353] [2023-08-28 18:07:20,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-28 18:07:20,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-28 18:07:20,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-28 18:07:20,917 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-28 18:07:20,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-28 18:07:20,924 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-28 18:07:20,924 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-28 18:07:20,924 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location thr1Err2ASSERT_VIOLATIONDATA_RACE (14 of 15 remaining) [2023-08-28 18:07:20,924 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (13 of 15 remaining) [2023-08-28 18:07:20,925 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (12 of 15 remaining) [2023-08-28 18:07:20,925 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (11 of 15 remaining) [2023-08-28 18:07:20,926 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (10 of 15 remaining) [2023-08-28 18:07:20,926 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (9 of 15 remaining) [2023-08-28 18:07:20,926 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (8 of 15 remaining) [2023-08-28 18:07:20,926 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (7 of 15 remaining) [2023-08-28 18:07:20,926 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (6 of 15 remaining) [2023-08-28 18:07:20,926 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (5 of 15 remaining) [2023-08-28 18:07:20,926 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (4 of 15 remaining) [2023-08-28 18:07:20,926 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (3 of 15 remaining) [2023-08-28 18:07:20,926 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (2 of 15 remaining) [2023-08-28 18:07:20,926 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (1 of 15 remaining) [2023-08-28 18:07:20,926 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (0 of 15 remaining) [2023-08-28 18:07:20,926 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-28 18:07:20,926 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1] [2023-08-28 18:07:20,927 INFO L307 ceAbstractionStarter]: Result for error location AllErrorsAtOnce was UNSAFE,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN,UNKNOWN (1/2) [2023-08-28 18:07:20,929 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 2 thread instances [2023-08-28 18:07:20,929 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-28 18:07:20,963 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.08 06:07:20 BasicIcfg [2023-08-28 18:07:20,963 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-28 18:07:20,963 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-28 18:07:20,963 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-28 18:07:20,963 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-28 18:07:20,964 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.08 06:07:15" (3/4) ... [2023-08-28 18:07:20,965 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-08-28 18:07:20,965 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-28 18:07:20,966 INFO L158 Benchmark]: Toolchain (without parser) took 5866.87ms. Allocated memory was 86.0MB in the beginning and 151.0MB in the end (delta: 65.0MB). Free memory was 65.5MB in the beginning and 84.1MB in the end (delta: -18.6MB). Peak memory consumption was 44.6MB. Max. memory is 16.1GB. [2023-08-28 18:07:20,966 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 62.9MB. Free memory was 40.6MB in the beginning and 40.6MB in the end (delta: 56.3kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-28 18:07:20,966 INFO L158 Benchmark]: CACSL2BoogieTranslator took 291.21ms. Allocated memory is still 86.0MB. Free memory was 65.3MB in the beginning and 46.6MB in the end (delta: 18.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-08-28 18:07:20,966 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.05ms. Allocated memory is still 86.0MB. Free memory was 46.6MB in the beginning and 44.8MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-28 18:07:20,966 INFO L158 Benchmark]: Boogie Preprocessor took 37.65ms. Allocated memory is still 86.0MB. Free memory was 44.8MB in the beginning and 65.1MB in the end (delta: -20.3MB). Peak memory consumption was 3.4MB. Max. memory is 16.1GB. [2023-08-28 18:07:20,966 INFO L158 Benchmark]: RCFGBuilder took 347.68ms. Allocated memory is still 86.0MB. Free memory was 65.1MB in the beginning and 53.6MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-08-28 18:07:20,967 INFO L158 Benchmark]: TraceAbstraction took 5137.97ms. Allocated memory was 86.0MB in the beginning and 151.0MB in the end (delta: 65.0MB). Free memory was 53.2MB in the beginning and 84.1MB in the end (delta: -30.8MB). Peak memory consumption was 32.8MB. Max. memory is 16.1GB. [2023-08-28 18:07:20,967 INFO L158 Benchmark]: Witness Printer took 2.14ms. Allocated memory is still 151.0MB. Free memory is still 84.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-28 18:07:20,968 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 62.9MB. Free memory was 40.6MB in the beginning and 40.6MB in the end (delta: 56.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 291.21ms. Allocated memory is still 86.0MB. Free memory was 65.3MB in the beginning and 46.6MB in the end (delta: 18.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.05ms. Allocated memory is still 86.0MB. Free memory was 46.6MB in the beginning and 44.8MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 37.65ms. Allocated memory is still 86.0MB. Free memory was 44.8MB in the beginning and 65.1MB in the end (delta: -20.3MB). Peak memory consumption was 3.4MB. Max. memory is 16.1GB. * RCFGBuilder took 347.68ms. Allocated memory is still 86.0MB. Free memory was 65.1MB in the beginning and 53.6MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 5137.97ms. Allocated memory was 86.0MB in the beginning and 151.0MB in the end (delta: 65.0MB). Free memory was 53.2MB in the beginning and 84.1MB in the end (delta: -30.8MB). Peak memory consumption was 32.8MB. Max. memory is 16.1GB. * Witness Printer took 2.14ms. Allocated memory is still 151.0MB. Free memory is still 84.1MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.4s, 60 PlacesBefore, 15 PlacesAfterwards, 60 TransitionsBefore, 12 TransitionsAfterwards, 884 CoEnabledTransitionPairs, 6 FixpointIterations, 11 TrivialSequentialCompositions, 46 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 3 ChoiceCompositions, 64 TotalNumberOfCompositions, 745 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 745, independent: 745, independent conditional: 0, independent unconditional: 745, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 443, independent: 443, independent conditional: 0, independent unconditional: 443, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 745, independent: 302, independent conditional: 0, independent unconditional: 302, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 443, unknown conditional: 0, unknown unconditional: 443] , Statistics on independence cache: Total cache size (in pairs): 6, Positive cache size: 6, Positive conditional cache size: 0, Positive unconditional cache size: 6, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.1s, 60 PlacesBefore, 15 PlacesAfterwards, 60 TransitionsBefore, 12 TransitionsAfterwards, 884 CoEnabledTransitionPairs, 6 FixpointIterations, 11 TrivialSequentialCompositions, 46 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 3 ChoiceCompositions, 64 TotalNumberOfCompositions, 745 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 745, independent: 745, independent conditional: 0, independent unconditional: 745, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 444, independent: 444, independent conditional: 0, independent unconditional: 444, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 745, independent: 301, independent conditional: 0, independent unconditional: 301, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 444, unknown conditional: 0, unknown unconditional: 444] , Statistics on independence cache: Total cache size (in pairs): 6, Positive cache size: 6, Positive conditional cache size: 0, Positive unconditional cache size: 6, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.6s, 95 PlacesBefore, 51 PlacesAfterwards, 95 TransitionsBefore, 48 TransitionsAfterwards, 4148 CoEnabledTransitionPairs, 5 FixpointIterations, 11 TrivialSequentialCompositions, 32 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 3 ChoiceCompositions, 52 TotalNumberOfCompositions, 13239 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5677, independent: 5307, independent conditional: 0, independent unconditional: 5307, dependent: 370, dependent conditional: 0, dependent unconditional: 370, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1978, independent: 1911, independent conditional: 0, independent unconditional: 1911, dependent: 67, dependent conditional: 0, dependent unconditional: 67, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 5677, independent: 3396, independent conditional: 0, independent unconditional: 3396, dependent: 303, dependent conditional: 0, dependent unconditional: 303, unknown: 1978, unknown conditional: 0, unknown unconditional: 1978] , Statistics on independence cache: Total cache size (in pairs): 367, Positive cache size: 333, Positive conditional cache size: 0, Positive unconditional cache size: 333, Negative cache size: 34, Negative conditional cache size: 0, Negative unconditional cache size: 34, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - DataRaceFoundResult [Line: 689]: Data race detected Data race detected The following path leads to a data race: [L684] 0 _Bool s = 0; [L685] 0 _Bool l = 0; [L695] 0 pthread_t t; VAL [l=0, s=0, t={3:0}] [L696] COND TRUE 0 1 [L696] FCALL, FORK 0 pthread_create(&t, 0, thr1, 0) VAL [arg={0:0}, l=0, pthread_create(&t, 0, thr1, 0)=-2, s=0, t={3:0}] [L696] COND TRUE 0 1 [L688] EXPR 1 !l VAL [arg={0:0}, arg={0:0}, l=0, s=0] [L688] EXPR 1 !l || s VAL [!l || s=1, arg={0:0}, arg={0:0}, l=0, s=0] [L688] COND FALSE 1 !(!(!l || s)) [L689] EXPR 1 s || 1 VAL [arg={0:0}, arg={0:0}, l=0, s=0] [L696] FCALL, FORK 0 pthread_create(&t, 0, thr1, 0) VAL [arg={0:0}, arg={0:0}, l=0, pthread_create(&t, 0, thr1, 0)=-1, s=0, t={3:0}] [L688] EXPR 2 !l VAL [arg={0:0}, arg={0:0}, l=0, s=0] [L688] EXPR 2 !l || s VAL [!l || s=1, arg={0:0}, arg={0:0}, l=0, s=0] [L688] COND FALSE 2 !(!(!l || s)) [L689] 2 s || 1 VAL [arg={0:0}, arg={0:0}, l=0, s=0] [L689] 1 s = s || 1 VAL [arg={0:0}, arg={0:0}, l=0, s = s || 1=49, s=1] [L689] 2 s || 1 VAL [arg={0:0}, arg={0:0}, l=0, s = s || 1=49, s=1] Now there is a data race on ~s~0 between C: s = s || 1 [689] and C: s || 1 [689] - UnprovableResult [Line: 688]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 688]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 689]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 690]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 91 locations, 11 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.7s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5 IncrementalHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 0 mSDtfsCounter, 5 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 3 ConstructedInterpolants, 0 QuantifiedInterpolants, 3 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data with 2 thread instances CFG has 4 procedures, 124 locations, 16 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.2s, OverallIterations: 9, TraceHistogramMax: 2, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 350 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 171 mSDsluCounter, 78 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 10 mSDsCounter, 53 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 613 IncrementalHoareTripleChecker+Invalid, 666 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 53 mSolverCounterUnsat, 68 mSDtfsCounter, 613 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=520occurred in iteration=7, InterpolantAutomatonStates: 27, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 128 NumberOfCodeBlocks, 128 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 101 ConstructedInterpolants, 0 QuantifiedInterpolants, 156 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 8/8 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for thread instance sufficiency with 1 thread instances CFG has 3 procedures, 91 locations, 11 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.2s, OverallIterations: 1, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.1s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-08-28 18:07:21,015 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE