./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/goblint-regression/05-lval_ls_13-idxunknown_lock.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/goblint-regression/05-lval_ls_13-idxunknown_lock.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 88789d38e839cdb13726f2ad9aa669b066ca22f31157bd019778c09c91261c6f --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-29 02:00:16,530 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 02:00:16,539 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 02:00:16,565 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 02:00:16,567 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 02:00:16,570 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 02:00:16,572 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 02:00:16,575 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 02:00:16,577 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 02:00:16,581 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 02:00:16,582 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 02:00:16,584 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 02:00:16,584 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 02:00:16,586 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 02:00:16,588 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 02:00:16,591 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 02:00:16,592 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 02:00:16,593 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 02:00:16,595 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 02:00:16,598 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 02:00:16,601 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 02:00:16,602 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 02:00:16,603 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 02:00:16,604 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 02:00:16,609 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 02:00:16,609 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 02:00:16,609 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 02:00:16,610 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 02:00:16,611 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 02:00:16,612 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 02:00:16,612 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 02:00:16,612 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 02:00:16,613 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 02:00:16,614 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 02:00:16,614 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 02:00:16,615 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 02:00:16,615 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 02:00:16,616 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 02:00:16,616 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 02:00:16,617 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 02:00:16,617 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 02:00:16,621 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-29 02:00:16,656 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 02:00:16,658 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 02:00:16,659 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 02:00:16,659 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 02:00:16,660 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 02:00:16,660 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 02:00:16,660 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 02:00:16,661 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 02:00:16,661 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 02:00:16,661 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 02:00:16,662 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 02:00:16,662 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 02:00:16,662 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 02:00:16,662 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 02:00:16,663 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 02:00:16,663 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-29 02:00:16,663 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 02:00:16,663 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-29 02:00:16,663 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-29 02:00:16,664 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 02:00:16,664 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-29 02:00:16,664 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 02:00:16,664 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-29 02:00:16,664 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 02:00:16,665 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 02:00:16,665 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 02:00:16,665 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 02:00:16,665 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 02:00:16,665 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 02:00:16,666 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-29 02:00:16,666 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 02:00:16,666 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 02:00:16,666 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 02:00:16,667 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-29 02:00:16,667 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 02:00:16,667 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 02:00:16,667 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 02:00:16,667 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 88789d38e839cdb13726f2ad9aa669b066ca22f31157bd019778c09c91261c6f Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-29 02:00:17,000 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 02:00:17,020 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 02:00:17,023 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 02:00:17,024 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 02:00:17,024 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 02:00:17,026 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/05-lval_ls_13-idxunknown_lock.i [2023-08-29 02:00:18,134 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 02:00:18,394 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 02:00:18,394 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/05-lval_ls_13-idxunknown_lock.i [2023-08-29 02:00:18,412 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/64a311b41/c689364428674cc3ae034f76cd3b5478/FLAG5f93bc1e4 [2023-08-29 02:00:18,433 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/64a311b41/c689364428674cc3ae034f76cd3b5478 [2023-08-29 02:00:18,435 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 02:00:18,436 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 02:00:18,439 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 02:00:18,439 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 02:00:18,442 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 02:00:18,443 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 02:00:18" (1/1) ... [2023-08-29 02:00:18,444 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@784e1aae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:00:18, skipping insertion in model container [2023-08-29 02:00:18,445 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 02:00:18" (1/1) ... [2023-08-29 02:00:18,450 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 02:00:18,491 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 02:00:18,822 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 02:00:18,848 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 02:00:18,905 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 02:00:18,948 INFO L208 MainTranslator]: Completed translation [2023-08-29 02:00:18,948 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:00:18 WrapperNode [2023-08-29 02:00:18,948 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 02:00:18,950 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 02:00:18,950 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 02:00:18,950 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 02:00:18,956 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:00:18" (1/1) ... [2023-08-29 02:00:18,985 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:00:18" (1/1) ... [2023-08-29 02:00:19,002 INFO L138 Inliner]: procedures = 164, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 61 [2023-08-29 02:00:19,004 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 02:00:19,005 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 02:00:19,006 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 02:00:19,006 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 02:00:19,013 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:00:18" (1/1) ... [2023-08-29 02:00:19,014 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:00:18" (1/1) ... [2023-08-29 02:00:19,027 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:00:18" (1/1) ... [2023-08-29 02:00:19,027 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:00:18" (1/1) ... [2023-08-29 02:00:19,039 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:00:18" (1/1) ... [2023-08-29 02:00:19,049 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:00:18" (1/1) ... [2023-08-29 02:00:19,054 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:00:18" (1/1) ... [2023-08-29 02:00:19,059 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:00:18" (1/1) ... [2023-08-29 02:00:19,061 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 02:00:19,066 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 02:00:19,067 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 02:00:19,067 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 02:00:19,068 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:00:18" (1/1) ... [2023-08-29 02:00:19,073 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 02:00:19,084 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 02:00:19,095 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-29 02:00:19,119 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-29 02:00:19,132 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-29 02:00:19,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-29 02:00:19,133 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-29 02:00:19,133 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-29 02:00:19,133 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 02:00:19,133 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-29 02:00:19,133 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-29 02:00:19,133 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 02:00:19,134 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 02:00:19,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 02:00:19,135 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-29 02:00:19,304 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 02:00:19,322 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 02:00:19,561 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 02:00:19,570 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 02:00:19,572 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-08-29 02:00:19,573 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 02:00:19 BoogieIcfgContainer [2023-08-29 02:00:19,574 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 02:00:19,576 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 02:00:19,576 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 02:00:19,579 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 02:00:19,579 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 02:00:18" (1/3) ... [2023-08-29 02:00:19,580 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72d8dc6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 02:00:19, skipping insertion in model container [2023-08-29 02:00:19,580 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:00:18" (2/3) ... [2023-08-29 02:00:19,581 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72d8dc6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 02:00:19, skipping insertion in model container [2023-08-29 02:00:19,581 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 02:00:19" (3/3) ... [2023-08-29 02:00:19,582 INFO L112 eAbstractionObserver]: Analyzing ICFG 05-lval_ls_13-idxunknown_lock.i [2023-08-29 02:00:19,589 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-29 02:00:19,597 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 02:00:19,597 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-08-29 02:00:19,598 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 02:00:19,674 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-29 02:00:19,716 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 91 places, 90 transitions, 185 flow [2023-08-29 02:00:19,771 INFO L130 PetriNetUnfolder]: 3/89 cut-off events. [2023-08-29 02:00:19,771 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 02:00:19,775 INFO L83 FinitePrefix]: Finished finitePrefix Result has 93 conditions, 89 events. 3/89 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 68 event pairs, 0 based on Foata normal form. 0/82 useless extension candidates. Maximal degree in co-relation 34. Up to 2 conditions per place. [2023-08-29 02:00:19,775 INFO L82 GeneralOperation]: Start removeDead. Operand has 91 places, 90 transitions, 185 flow [2023-08-29 02:00:19,780 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 90 places, 89 transitions, 181 flow [2023-08-29 02:00:19,784 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 02:00:19,796 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 90 places, 89 transitions, 181 flow [2023-08-29 02:00:19,800 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 90 places, 89 transitions, 181 flow [2023-08-29 02:00:19,800 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 90 places, 89 transitions, 181 flow [2023-08-29 02:00:19,835 INFO L130 PetriNetUnfolder]: 3/89 cut-off events. [2023-08-29 02:00:19,835 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 02:00:19,835 INFO L83 FinitePrefix]: Finished finitePrefix Result has 93 conditions, 89 events. 3/89 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 68 event pairs, 0 based on Foata normal form. 0/82 useless extension candidates. Maximal degree in co-relation 34. Up to 2 conditions per place. [2023-08-29 02:00:19,837 INFO L119 LiptonReduction]: Number of co-enabled transitions 1450 [2023-08-29 02:00:21,309 INFO L134 LiptonReduction]: Checked pairs total: 7570 [2023-08-29 02:00:21,309 INFO L136 LiptonReduction]: Total number of compositions: 59 [2023-08-29 02:00:21,322 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 02:00:21,327 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;@29347df3, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 02:00:21,328 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-08-29 02:00:21,333 INFO L130 PetriNetUnfolder]: 1/16 cut-off events. [2023-08-29 02:00:21,334 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 02:00:21,334 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:00:21,335 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:00:21,335 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-29 02:00:21,339 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:00:21,340 INFO L85 PathProgramCache]: Analyzing trace with hash 901930037, now seen corresponding path program 1 times [2023-08-29 02:00:21,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:00:21,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961736282] [2023-08-29 02:00:21,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:00:21,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:00:21,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:00:21,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:00:21,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:00:21,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961736282] [2023-08-29 02:00:21,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [961736282] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:00:21,585 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:00:21,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 02:00:21,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506727420] [2023-08-29 02:00:21,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:00:21,593 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 02:00:21,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:00:21,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 02:00:21,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 02:00:21,635 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 149 [2023-08-29 02:00:21,638 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 36 transitions, 75 flow. Second operand has 3 states, 3 states have (on average 84.66666666666667) internal successors, (254), 3 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:00:21,639 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:00:21,639 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 149 [2023-08-29 02:00:21,640 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:00:21,720 INFO L130 PetriNetUnfolder]: 37/169 cut-off events. [2023-08-29 02:00:21,720 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 02:00:21,721 INFO L83 FinitePrefix]: Finished finitePrefix Result has 263 conditions, 169 events. 37/169 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 652 event pairs, 36 based on Foata normal form. 0/157 useless extension candidates. Maximal degree in co-relation 248. Up to 89 conditions per place. [2023-08-29 02:00:21,724 INFO L137 encePairwiseOnDemand]: 146/149 looper letters, 15 selfloop transitions, 2 changer transitions 0/37 dead transitions. [2023-08-29 02:00:21,724 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 37 transitions, 111 flow [2023-08-29 02:00:21,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 02:00:21,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 02:00:21,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 267 transitions. [2023-08-29 02:00:21,739 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5973154362416108 [2023-08-29 02:00:21,739 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 267 transitions. [2023-08-29 02:00:21,740 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 267 transitions. [2023-08-29 02:00:21,741 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:00:21,742 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 267 transitions. [2023-08-29 02:00:21,744 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) [2023-08-29 02:00:21,749 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 149.0) internal successors, (596), 4 states have internal predecessors, (596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:00:21,749 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 149.0) internal successors, (596), 4 states have internal predecessors, (596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:00:21,751 INFO L175 Difference]: Start difference. First operand has 39 places, 36 transitions, 75 flow. Second operand 3 states and 267 transitions. [2023-08-29 02:00:21,752 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 37 transitions, 111 flow [2023-08-29 02:00:21,754 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 37 transitions, 110 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 02:00:21,756 INFO L231 Difference]: Finished difference. Result has 41 places, 37 transitions, 86 flow [2023-08-29 02:00:21,758 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=86, PETRI_PLACES=41, PETRI_TRANSITIONS=37} [2023-08-29 02:00:21,762 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 2 predicate places. [2023-08-29 02:00:21,762 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 37 transitions, 86 flow [2023-08-29 02:00:21,763 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 84.66666666666667) internal successors, (254), 3 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:00:21,763 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:00:21,763 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:00:21,763 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-29 02:00:21,763 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-29 02:00:21,768 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:00:21,769 INFO L85 PathProgramCache]: Analyzing trace with hash 1406199424, now seen corresponding path program 1 times [2023-08-29 02:00:21,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:00:21,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351400294] [2023-08-29 02:00:21,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:00:21,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:00:21,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:00:21,953 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:00:21,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:00:21,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351400294] [2023-08-29 02:00:21,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [351400294] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-29 02:00:21,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [672439612] [2023-08-29 02:00:21,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:00:21,955 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 02:00:21,955 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 02:00:21,959 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-29 02:00:21,959 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-08-29 02:00:22,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:00:22,079 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 3 conjunts are in the unsatisfiable core [2023-08-29 02:00:22,082 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 02:00:22,130 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:00:22,130 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-29 02:00:22,172 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:00:22,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [672439612] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-29 02:00:22,173 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-29 02:00:22,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2023-08-29 02:00:22,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242296210] [2023-08-29 02:00:22,174 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-29 02:00:22,175 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-29 02:00:22,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:00:22,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-29 02:00:22,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-08-29 02:00:22,207 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 149 [2023-08-29 02:00:22,208 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 37 transitions, 86 flow. Second operand has 7 states, 7 states have (on average 83.57142857142857) internal successors, (585), 7 states have internal predecessors, (585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:00:22,208 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:00:22,208 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 149 [2023-08-29 02:00:22,208 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:00:22,276 INFO L130 PetriNetUnfolder]: 37/172 cut-off events. [2023-08-29 02:00:22,282 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 02:00:22,284 INFO L83 FinitePrefix]: Finished finitePrefix Result has 278 conditions, 172 events. 37/172 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 653 event pairs, 36 based on Foata normal form. 0/160 useless extension candidates. Maximal degree in co-relation 267. Up to 89 conditions per place. [2023-08-29 02:00:22,286 INFO L137 encePairwiseOnDemand]: 146/149 looper letters, 15 selfloop transitions, 5 changer transitions 0/40 dead transitions. [2023-08-29 02:00:22,286 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 40 transitions, 138 flow [2023-08-29 02:00:22,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 02:00:22,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 02:00:22,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 515 transitions. [2023-08-29 02:00:22,293 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5760626398210291 [2023-08-29 02:00:22,293 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 515 transitions. [2023-08-29 02:00:22,293 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 515 transitions. [2023-08-29 02:00:22,295 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:00:22,295 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 515 transitions. [2023-08-29 02:00:22,297 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 85.83333333333333) internal successors, (515), 6 states have internal predecessors, (515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:00:22,301 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 149.0) internal successors, (1043), 7 states have internal predecessors, (1043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:00:22,302 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 149.0) internal successors, (1043), 7 states have internal predecessors, (1043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:00:22,302 INFO L175 Difference]: Start difference. First operand has 41 places, 37 transitions, 86 flow. Second operand 6 states and 515 transitions. [2023-08-29 02:00:22,302 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 40 transitions, 138 flow [2023-08-29 02:00:22,303 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 40 transitions, 134 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-08-29 02:00:22,304 INFO L231 Difference]: Finished difference. Result has 48 places, 40 transitions, 118 flow [2023-08-29 02:00:22,304 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=118, PETRI_PLACES=48, PETRI_TRANSITIONS=40} [2023-08-29 02:00:22,305 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 9 predicate places. [2023-08-29 02:00:22,306 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 40 transitions, 118 flow [2023-08-29 02:00:22,309 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 83.57142857142857) internal successors, (585), 7 states have internal predecessors, (585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:00:22,310 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:00:22,310 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:00:22,319 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-08-29 02:00:22,516 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 02:00:22,517 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-29 02:00:22,517 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:00:22,517 INFO L85 PathProgramCache]: Analyzing trace with hash -274375579, now seen corresponding path program 2 times [2023-08-29 02:00:22,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:00:22,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303121876] [2023-08-29 02:00:22,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:00:22,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:00:22,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:00:22,950 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-08-29 02:00:22,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:00:22,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303121876] [2023-08-29 02:00:22,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303121876] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:00:22,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:00:22,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 02:00:22,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407342899] [2023-08-29 02:00:22,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:00:22,955 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 02:00:22,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:00:22,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 02:00:22,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 02:00:23,100 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 149 [2023-08-29 02:00:23,101 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 40 transitions, 118 flow. Second operand has 6 states, 6 states have (on average 65.83333333333333) internal successors, (395), 6 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:00:23,101 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:00:23,101 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 149 [2023-08-29 02:00:23,102 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:00:23,351 INFO L130 PetriNetUnfolder]: 310/735 cut-off events. [2023-08-29 02:00:23,351 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-29 02:00:23,355 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1440 conditions, 735 events. 310/735 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 3829 event pairs, 83 based on Foata normal form. 0/711 useless extension candidates. Maximal degree in co-relation 1407. Up to 307 conditions per place. [2023-08-29 02:00:23,359 INFO L137 encePairwiseOnDemand]: 127/149 looper letters, 109 selfloop transitions, 42 changer transitions 0/154 dead transitions. [2023-08-29 02:00:23,359 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 154 transitions, 648 flow [2023-08-29 02:00:23,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 02:00:23,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 02:00:23,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 533 transitions. [2023-08-29 02:00:23,361 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5961968680089486 [2023-08-29 02:00:23,362 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 533 transitions. [2023-08-29 02:00:23,362 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 533 transitions. [2023-08-29 02:00:23,362 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:00:23,362 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 533 transitions. [2023-08-29 02:00:23,364 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 88.83333333333333) internal successors, (533), 6 states have internal predecessors, (533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:00:23,365 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 149.0) internal successors, (1043), 7 states have internal predecessors, (1043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:00:23,366 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 149.0) internal successors, (1043), 7 states have internal predecessors, (1043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:00:23,366 INFO L175 Difference]: Start difference. First operand has 48 places, 40 transitions, 118 flow. Second operand 6 states and 533 transitions. [2023-08-29 02:00:23,366 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 154 transitions, 648 flow [2023-08-29 02:00:23,369 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 154 transitions, 634 flow, removed 6 selfloop flow, removed 1 redundant places. [2023-08-29 02:00:23,372 INFO L231 Difference]: Finished difference. Result has 57 places, 86 transitions, 420 flow [2023-08-29 02:00:23,372 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=420, PETRI_PLACES=57, PETRI_TRANSITIONS=86} [2023-08-29 02:00:23,373 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 18 predicate places. [2023-08-29 02:00:23,373 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 86 transitions, 420 flow [2023-08-29 02:00:23,374 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 65.83333333333333) internal successors, (395), 6 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:00:23,374 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:00:23,375 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:00:23,375 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-29 02:00:23,375 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-29 02:00:23,376 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:00:23,376 INFO L85 PathProgramCache]: Analyzing trace with hash 234845535, now seen corresponding path program 1 times [2023-08-29 02:00:23,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:00:23,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531982760] [2023-08-29 02:00:23,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:00:23,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:00:23,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:00:23,496 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:00:23,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:00:23,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531982760] [2023-08-29 02:00:23,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [531982760] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-29 02:00:23,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1214038874] [2023-08-29 02:00:23,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:00:23,498 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 02:00:23,498 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 02:00:23,499 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-29 02:00:23,532 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-08-29 02:00:23,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:00:23,594 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 6 conjunts are in the unsatisfiable core [2023-08-29 02:00:23,596 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 02:00:23,620 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:00:23,621 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-29 02:00:23,671 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:00:23,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1214038874] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-29 02:00:23,672 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-29 02:00:23,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2023-08-29 02:00:23,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662329278] [2023-08-29 02:00:23,677 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-29 02:00:23,677 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-29 02:00:23,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:00:23,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-29 02:00:23,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2023-08-29 02:00:23,711 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 149 [2023-08-29 02:00:23,712 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 86 transitions, 420 flow. Second operand has 13 states, 13 states have (on average 83.46153846153847) internal successors, (1085), 13 states have internal predecessors, (1085), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:00:23,712 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:00:23,713 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 149 [2023-08-29 02:00:23,713 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:00:23,836 INFO L130 PetriNetUnfolder]: 150/506 cut-off events. [2023-08-29 02:00:23,836 INFO L131 PetriNetUnfolder]: For 268/278 co-relation queries the response was YES. [2023-08-29 02:00:23,837 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1327 conditions, 506 events. 150/506 cut-off events. For 268/278 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 2939 event pairs, 61 based on Foata normal form. 6/498 useless extension candidates. Maximal degree in co-relation 1272. Up to 212 conditions per place. [2023-08-29 02:00:23,839 INFO L137 encePairwiseOnDemand]: 146/149 looper letters, 35 selfloop transitions, 11 changer transitions 0/92 dead transitions. [2023-08-29 02:00:23,839 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 92 transitions, 548 flow [2023-08-29 02:00:23,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-29 02:00:23,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-29 02:00:23,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1016 transitions. [2023-08-29 02:00:23,843 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5682326621923938 [2023-08-29 02:00:23,843 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1016 transitions. [2023-08-29 02:00:23,844 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1016 transitions. [2023-08-29 02:00:23,844 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:00:23,844 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1016 transitions. [2023-08-29 02:00:23,847 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 84.66666666666667) internal successors, (1016), 12 states have internal predecessors, (1016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:00:23,850 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 149.0) internal successors, (1937), 13 states have internal predecessors, (1937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:00:23,851 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 149.0) internal successors, (1937), 13 states have internal predecessors, (1937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:00:23,851 INFO L175 Difference]: Start difference. First operand has 57 places, 86 transitions, 420 flow. Second operand 12 states and 1016 transitions. [2023-08-29 02:00:23,851 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 92 transitions, 548 flow [2023-08-29 02:00:23,858 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 92 transitions, 548 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 02:00:23,860 INFO L231 Difference]: Finished difference. Result has 74 places, 92 transitions, 504 flow [2023-08-29 02:00:23,860 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=420, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=504, PETRI_PLACES=74, PETRI_TRANSITIONS=92} [2023-08-29 02:00:23,861 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 35 predicate places. [2023-08-29 02:00:23,862 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 92 transitions, 504 flow [2023-08-29 02:00:23,862 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 83.46153846153847) internal successors, (1085), 13 states have internal predecessors, (1085), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:00:23,862 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:00:23,862 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:00:23,870 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-08-29 02:00:24,068 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2023-08-29 02:00:24,068 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-29 02:00:24,069 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:00:24,069 INFO L85 PathProgramCache]: Analyzing trace with hash 1376950143, now seen corresponding path program 2 times [2023-08-29 02:00:24,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:00:24,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327596885] [2023-08-29 02:00:24,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:00:24,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:00:24,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:00:24,407 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-29 02:00:24,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:00:24,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327596885] [2023-08-29 02:00:24,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1327596885] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:00:24,408 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:00:24,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 02:00:24,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083021190] [2023-08-29 02:00:24,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:00:24,409 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 02:00:24,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:00:24,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 02:00:24,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 02:00:24,529 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 149 [2023-08-29 02:00:24,530 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 92 transitions, 504 flow. Second operand has 6 states, 6 states have (on average 64.66666666666667) internal successors, (388), 6 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:00:24,531 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:00:24,531 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 149 [2023-08-29 02:00:24,531 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:00:24,766 INFO L130 PetriNetUnfolder]: 438/1007 cut-off events. [2023-08-29 02:00:24,766 INFO L131 PetriNetUnfolder]: For 568/577 co-relation queries the response was YES. [2023-08-29 02:00:24,769 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3057 conditions, 1007 events. 438/1007 cut-off events. For 568/577 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 5507 event pairs, 114 based on Foata normal form. 24/1030 useless extension candidates. Maximal degree in co-relation 2977. Up to 611 conditions per place. [2023-08-29 02:00:24,774 INFO L137 encePairwiseOnDemand]: 132/149 looper letters, 120 selfloop transitions, 53 changer transitions 6/183 dead transitions. [2023-08-29 02:00:24,774 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 183 transitions, 1230 flow [2023-08-29 02:00:24,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 02:00:24,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 02:00:24,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 481 transitions. [2023-08-29 02:00:24,777 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5380313199105146 [2023-08-29 02:00:24,777 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 481 transitions. [2023-08-29 02:00:24,778 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 481 transitions. [2023-08-29 02:00:24,778 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:00:24,778 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 481 transitions. [2023-08-29 02:00:24,779 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 80.16666666666667) internal successors, (481), 6 states have internal predecessors, (481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:00:24,781 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 149.0) internal successors, (1043), 7 states have internal predecessors, (1043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:00:24,781 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 149.0) internal successors, (1043), 7 states have internal predecessors, (1043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:00:24,781 INFO L175 Difference]: Start difference. First operand has 74 places, 92 transitions, 504 flow. Second operand 6 states and 481 transitions. [2023-08-29 02:00:24,781 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 183 transitions, 1230 flow [2023-08-29 02:00:24,787 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 183 transitions, 1182 flow, removed 19 selfloop flow, removed 5 redundant places. [2023-08-29 02:00:24,791 INFO L231 Difference]: Finished difference. Result has 79 places, 143 transitions, 962 flow [2023-08-29 02:00:24,794 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=456, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=962, PETRI_PLACES=79, PETRI_TRANSITIONS=143} [2023-08-29 02:00:24,796 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 40 predicate places. [2023-08-29 02:00:24,796 INFO L495 AbstractCegarLoop]: Abstraction has has 79 places, 143 transitions, 962 flow [2023-08-29 02:00:24,796 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 64.66666666666667) internal successors, (388), 6 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:00:24,797 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:00:24,797 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:00:24,797 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-29 02:00:24,797 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-29 02:00:24,797 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:00:24,798 INFO L85 PathProgramCache]: Analyzing trace with hash 1108843049, now seen corresponding path program 1 times [2023-08-29 02:00:24,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:00:24,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976116514] [2023-08-29 02:00:24,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:00:24,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:00:24,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:00:25,117 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-08-29 02:00:25,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:00:25,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976116514] [2023-08-29 02:00:25,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [976116514] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:00:25,118 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:00:25,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 02:00:25,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567469035] [2023-08-29 02:00:25,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:00:25,118 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 02:00:25,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:00:25,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 02:00:25,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 02:00:25,210 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 149 [2023-08-29 02:00:25,211 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 143 transitions, 962 flow. Second operand has 6 states, 6 states have (on average 65.83333333333333) internal successors, (395), 6 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:00:25,211 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:00:25,211 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 149 [2023-08-29 02:00:25,211 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:00:25,496 INFO L130 PetriNetUnfolder]: 539/1219 cut-off events. [2023-08-29 02:00:25,497 INFO L131 PetriNetUnfolder]: For 2030/2055 co-relation queries the response was YES. [2023-08-29 02:00:25,501 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4696 conditions, 1219 events. 539/1219 cut-off events. For 2030/2055 co-relation queries the response was YES. Maximal size of possible extension queue 87. Compared 6937 event pairs, 114 based on Foata normal form. 25/1242 useless extension candidates. Maximal degree in co-relation 4636. Up to 788 conditions per place. [2023-08-29 02:00:25,506 INFO L137 encePairwiseOnDemand]: 132/149 looper letters, 138 selfloop transitions, 58 changer transitions 43/243 dead transitions. [2023-08-29 02:00:25,506 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 243 transitions, 2006 flow [2023-08-29 02:00:25,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 02:00:25,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 02:00:25,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 483 transitions. [2023-08-29 02:00:25,508 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.540268456375839 [2023-08-29 02:00:25,508 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 483 transitions. [2023-08-29 02:00:25,509 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 483 transitions. [2023-08-29 02:00:25,509 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:00:25,509 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 483 transitions. [2023-08-29 02:00:25,510 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 80.5) internal successors, (483), 6 states have internal predecessors, (483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:00:25,512 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 149.0) internal successors, (1043), 7 states have internal predecessors, (1043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:00:25,512 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 149.0) internal successors, (1043), 7 states have internal predecessors, (1043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:00:25,512 INFO L175 Difference]: Start difference. First operand has 79 places, 143 transitions, 962 flow. Second operand 6 states and 483 transitions. [2023-08-29 02:00:25,512 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 243 transitions, 2006 flow [2023-08-29 02:00:25,520 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 243 transitions, 1998 flow, removed 4 selfloop flow, removed 0 redundant places. [2023-08-29 02:00:25,524 INFO L231 Difference]: Finished difference. Result has 88 places, 170 transitions, 1362 flow [2023-08-29 02:00:25,525 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=954, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=143, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1362, PETRI_PLACES=88, PETRI_TRANSITIONS=170} [2023-08-29 02:00:25,525 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 49 predicate places. [2023-08-29 02:00:25,526 INFO L495 AbstractCegarLoop]: Abstraction has has 88 places, 170 transitions, 1362 flow [2023-08-29 02:00:25,526 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 65.83333333333333) internal successors, (395), 6 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:00:25,526 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:00:25,526 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:00:25,526 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-29 02:00:25,527 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-08-29 02:00:25,527 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:00:25,527 INFO L85 PathProgramCache]: Analyzing trace with hash 771160099, now seen corresponding path program 1 times [2023-08-29 02:00:25,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:00:25,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662240337] [2023-08-29 02:00:25,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:00:25,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:00:25,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-29 02:00:25,555 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-29 02:00:25,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-29 02:00:25,589 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-29 02:00:25,589 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-29 02:00:25,590 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (6 of 7 remaining) [2023-08-29 02:00:25,592 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (5 of 7 remaining) [2023-08-29 02:00:25,592 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (4 of 7 remaining) [2023-08-29 02:00:25,592 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 7 remaining) [2023-08-29 02:00:25,592 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (2 of 7 remaining) [2023-08-29 02:00:25,592 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 7 remaining) [2023-08-29 02:00:25,593 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 7 remaining) [2023-08-29 02:00:25,593 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-29 02:00:25,593 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1] [2023-08-29 02:00:25,598 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-29 02:00:25,598 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-29 02:00:25,627 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 02:00:25 BasicIcfg [2023-08-29 02:00:25,628 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-29 02:00:25,628 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-29 02:00:25,628 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-29 02:00:25,629 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-29 02:00:25,629 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 02:00:19" (3/4) ... [2023-08-29 02:00:25,631 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-08-29 02:00:25,631 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-29 02:00:25,632 INFO L158 Benchmark]: Toolchain (without parser) took 7195.68ms. Allocated memory was 60.8MB in the beginning and 140.5MB in the end (delta: 79.7MB). Free memory was 34.4MB in the beginning and 55.4MB in the end (delta: -21.0MB). Peak memory consumption was 59.6MB. Max. memory is 16.1GB. [2023-08-29 02:00:25,632 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 60.8MB. Free memory is still 38.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 02:00:25,633 INFO L158 Benchmark]: CACSL2BoogieTranslator took 510.07ms. Allocated memory was 60.8MB in the beginning and 77.6MB in the end (delta: 16.8MB). Free memory was 34.2MB in the beginning and 47.2MB in the end (delta: -13.0MB). Peak memory consumption was 11.4MB. Max. memory is 16.1GB. [2023-08-29 02:00:25,633 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.02ms. Allocated memory is still 77.6MB. Free memory was 47.2MB in the beginning and 45.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 02:00:25,633 INFO L158 Benchmark]: Boogie Preprocessor took 59.93ms. Allocated memory is still 77.6MB. Free memory was 45.1MB in the beginning and 43.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 02:00:25,634 INFO L158 Benchmark]: RCFGBuilder took 508.09ms. Allocated memory is still 77.6MB. Free memory was 43.4MB in the beginning and 53.4MB in the end (delta: -10.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-08-29 02:00:25,634 INFO L158 Benchmark]: TraceAbstraction took 6052.22ms. Allocated memory was 77.6MB in the beginning and 140.5MB in the end (delta: 62.9MB). Free memory was 52.5MB in the beginning and 56.4MB in the end (delta: -3.9MB). Peak memory consumption was 58.6MB. Max. memory is 16.1GB. [2023-08-29 02:00:25,634 INFO L158 Benchmark]: Witness Printer took 3.18ms. Allocated memory is still 140.5MB. Free memory was 56.4MB in the beginning and 55.4MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 02:00:25,636 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 60.8MB. Free memory is still 38.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 510.07ms. Allocated memory was 60.8MB in the beginning and 77.6MB in the end (delta: 16.8MB). Free memory was 34.2MB in the beginning and 47.2MB in the end (delta: -13.0MB). Peak memory consumption was 11.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.02ms. Allocated memory is still 77.6MB. Free memory was 47.2MB in the beginning and 45.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 59.93ms. Allocated memory is still 77.6MB. Free memory was 45.1MB in the beginning and 43.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 508.09ms. Allocated memory is still 77.6MB. Free memory was 43.4MB in the beginning and 53.4MB in the end (delta: -10.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 6052.22ms. Allocated memory was 77.6MB in the beginning and 140.5MB in the end (delta: 62.9MB). Free memory was 52.5MB in the beginning and 56.4MB in the end (delta: -3.9MB). Peak memory consumption was 58.6MB. Max. memory is 16.1GB. * Witness Printer took 3.18ms. Allocated memory is still 140.5MB. Free memory was 56.4MB in the beginning and 55.4MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.5s, 90 PlacesBefore, 39 PlacesAfterwards, 89 TransitionsBefore, 36 TransitionsAfterwards, 1450 CoEnabledTransitionPairs, 6 FixpointIterations, 29 TrivialSequentialCompositions, 22 ConcurrentSequentialCompositions, 6 TrivialYvCompositions, 0 ConcurrentYvCompositions, 2 ChoiceCompositions, 59 TotalNumberOfCompositions, 7570 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1730, independent: 1334, independent conditional: 0, independent unconditional: 1334, dependent: 396, dependent conditional: 0, dependent unconditional: 396, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 613, independent: 570, independent conditional: 0, independent unconditional: 570, dependent: 43, dependent conditional: 0, dependent unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1730, independent: 764, independent conditional: 0, independent unconditional: 764, dependent: 353, dependent conditional: 0, dependent unconditional: 353, unknown: 613, unknown conditional: 0, unknown unconditional: 613] , Statistics on independence cache: Total cache size (in pairs): 112, Positive cache size: 77, Positive conditional cache size: 0, Positive unconditional cache size: 77, Negative cache size: 35, Negative conditional cache size: 0, Negative unconditional cache size: 35, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - DataRaceFoundResult [Line: 688]: Data race detected Data race detected The following path leads to a data race: [L684] 0 int data[10]; [L685] 0 pthread_mutex_t m[10]; [L693] 0 int i = 0; VAL [data={1:0}, i=0, m={2:0}] [L693] COND TRUE 0 i < 10 [L693] 0 i++ VAL [data={1:0}, i=1, m={2:0}] [L693] COND TRUE 0 i < 10 [L693] 0 i++ VAL [data={1:0}, i=2, m={2:0}] [L693] COND TRUE 0 i < 10 [L693] 0 i++ VAL [data={1:0}, i=3, m={2:0}] [L693] COND TRUE 0 i < 10 [L693] 0 i++ VAL [data={1:0}, i=4, m={2:0}] [L693] COND TRUE 0 i < 10 [L693] 0 i++ VAL [data={1:0}, i=5, m={2:0}] [L693] COND TRUE 0 i < 10 [L693] 0 i++ VAL [data={1:0}, i=6, m={2:0}] [L693] COND TRUE 0 i < 10 [L693] 0 i++ VAL [data={1:0}, i=7, m={2:0}] [L693] COND TRUE 0 i < 10 [L693] 0 i++ VAL [data={1:0}, i=8, m={2:0}] [L693] COND TRUE 0 i < 10 [L693] 0 i++ VAL [data={1:0}, i=9, m={2:0}] [L693] COND TRUE 0 i < 10 [L693] 0 i++ VAL [data={1:0}, i=10, m={2:0}] [L693] COND FALSE 0 !(i < 10) [L695] 0 int i = __VERIFIER_nondet_int(); [L696] CALL 0 assume_abort_if_not(0 <= i && i < 10) [L11] COND FALSE 0 !(!cond) [L696] RET 0 assume_abort_if_not(0 <= i && i < 10) [L697] 0 pthread_t id; [L698] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, data={1:0}, i=10, i=9, id={3:0}, m={2:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L700] EXPR 0 data[4] VAL [arg={0:0}, arg={0:0}, data={1:0}, data[4]=0, i=10, i=9, id={3:0}, m={2:0}, pthread_mutex_lock(&m[4])=0] [L688] EXPR 1 data[4] VAL [arg={0:0}, arg={0:0}, data={1:0}, data[4]=0, m={2:0}] [L700] 0 data[4]++ VAL [arg={0:0}, arg={0:0}, data={1:0}, data[4]=0, data[4]=0, i=10, i=9, id={3:0}, m={2:0}] [L688] 1 data[4]++ VAL [arg={0:0}, arg={0:0}, data={1:0}, data[4]=0, m={2:0}] [L700] 0 data[4]++ VAL [arg={0:0}, arg={0:0}, data={1:0}, data[4]++=0, data[4]=0, data[4]=0, i=10, i=9, id={3:0}, m={2:0}] [L688] 1 data[4]++ VAL [arg={0:0}, arg={0:0}, data={1:0}, data[4]=0, m={2:0}] [L700] 0 data[4]++ VAL [arg={0:0}, arg={0:0}, data={1:0}, data[4]++=0, data[4]++=241, data[4]=0, data[4]=0, i=10, i=9, id={3:0}, m={2:0}] [L688] 1 data[4]++ VAL [arg={0:0}, arg={0:0}, data={1:0}, data[4]=0, m={2:0}] Now there is a data race (on the heap) between C: data[4]++ [700] and C: data[4]++ [688] - UnprovableResult [Line: 700]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 698]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) 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. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 115 locations, 7 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: 5.9s, OverallIterations: 7, TraceHistogramMax: 10, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 387 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 234 mSDsluCounter, 31 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 131 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1024 IncrementalHoareTripleChecker+Invalid, 1155 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 131 mSolverCounterUnsat, 31 mSDtfsCounter, 1024 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 84 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1362occurred in iteration=6, InterpolantAutomatonStates: 39, 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, 1.5s InterpolantComputationTime, 167 NumberOfCodeBlocks, 167 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 159 ConstructedInterpolants, 0 QuantifiedInterpolants, 470 SizeOfPredicates, 0 NumberOfNonLiveVariables, 247 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 10 InterpolantComputations, 4 PerfectInterpolantSequences, 120/153 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! [2023-08-29 02:00:25,684 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