./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 TOGETHER --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/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 TOGETHER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-29 17:30:51,312 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 17:30:51,313 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 17:30:51,346 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 17:30:51,347 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 17:30:51,349 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 17:30:51,351 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 17:30:51,353 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 17:30:51,354 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 17:30:51,357 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 17:30:51,358 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 17:30:51,359 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 17:30:51,360 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 17:30:51,361 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 17:30:51,362 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 17:30:51,366 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 17:30:51,366 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 17:30:51,367 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 17:30:51,369 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 17:30:51,373 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 17:30:51,374 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 17:30:51,375 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 17:30:51,382 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 17:30:51,383 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 17:30:51,388 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 17:30:51,388 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 17:30:51,388 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 17:30:51,390 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 17:30:51,390 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 17:30:51,390 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 17:30:51,391 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 17:30:51,394 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 17:30:51,395 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 17:30:51,396 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 17:30:51,397 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 17:30:51,397 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 17:30:51,398 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 17:30:51,398 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 17:30:51,398 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 17:30:51,399 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 17:30:51,399 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 17:30:51,401 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-29 17:30:51,426 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 17:30:51,426 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 17:30:51,427 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 17:30:51,427 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 17:30:51,428 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 17:30:51,428 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 17:30:51,428 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 17:30:51,428 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 17:30:51,428 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 17:30:51,429 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 17:30:51,429 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 17:30:51,429 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 17:30:51,429 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 17:30:51,430 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 17:30:51,430 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 17:30:51,430 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-29 17:30:51,430 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 17:30:51,430 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-29 17:30:51,430 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-29 17:30:51,430 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 17:30:51,431 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-29 17:30:51,431 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 17:30:51,431 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-29 17:30:51,431 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 17:30:51,431 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 17:30:51,431 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 17:30:51,432 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 17:30:51,432 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 17:30:51,432 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 17:30:51,432 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-29 17:30:51,432 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 17:30:51,432 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 17:30:51,433 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 17:30:51,433 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-29 17:30:51,433 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 17:30:51,433 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 17:30:51,433 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 17:30:51,433 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 88789d38e839cdb13726f2ad9aa669b066ca22f31157bd019778c09c91261c6f Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-29 17:30:51,681 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 17:30:51,700 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 17:30:51,702 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 17:30:51,703 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 17:30:51,703 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 17:30:51,705 INFO L432 ainManager$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 17:30:52,769 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 17:30:52,914 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 17:30:52,915 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/05-lval_ls_13-idxunknown_lock.i [2023-08-29 17:30:52,922 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/94ad87b80/6b837e5a3de04abab8fbccbf6f3957e7/FLAG3eecc00e9 [2023-08-29 17:30:52,931 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/94ad87b80/6b837e5a3de04abab8fbccbf6f3957e7 [2023-08-29 17:30:52,932 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 17:30:52,933 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 17:30:52,934 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 17:30:52,934 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 17:30:52,936 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 17:30:52,937 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 05:30:52" (1/1) ... [2023-08-29 17:30:52,937 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bc78733 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:30:52, skipping insertion in model container [2023-08-29 17:30:52,937 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 05:30:52" (1/1) ... [2023-08-29 17:30:52,941 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 17:30:52,974 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 17:30:53,157 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 17:30:53,172 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 17:30:53,229 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 17:30:53,257 INFO L208 MainTranslator]: Completed translation [2023-08-29 17:30:53,257 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:30:53 WrapperNode [2023-08-29 17:30:53,257 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 17:30:53,258 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 17:30:53,258 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 17:30:53,258 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 17:30:53,262 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:30:53" (1/1) ... [2023-08-29 17:30:53,284 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:30:53" (1/1) ... [2023-08-29 17:30:53,304 INFO L138 Inliner]: procedures = 164, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 61 [2023-08-29 17:30:53,305 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 17:30:53,305 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 17:30:53,305 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 17:30:53,306 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 17:30:53,311 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:30:53" (1/1) ... [2023-08-29 17:30:53,311 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:30:53" (1/1) ... [2023-08-29 17:30:53,320 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:30:53" (1/1) ... [2023-08-29 17:30:53,320 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:30:53" (1/1) ... [2023-08-29 17:30:53,331 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:30:53" (1/1) ... [2023-08-29 17:30:53,334 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:30:53" (1/1) ... [2023-08-29 17:30:53,338 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:30:53" (1/1) ... [2023-08-29 17:30:53,343 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:30:53" (1/1) ... [2023-08-29 17:30:53,344 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 17:30:53,348 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 17:30:53,348 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 17:30:53,348 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 17:30:53,349 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:30:53" (1/1) ... [2023-08-29 17:30:53,353 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 17:30:53,362 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 17:30:53,385 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 17:30:53,407 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 17:30:53,417 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-29 17:30:53,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-29 17:30:53,418 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-29 17:30:53,418 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-29 17:30:53,418 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 17:30:53,418 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-29 17:30:53,418 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-29 17:30:53,418 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 17:30:53,418 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 17:30:53,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 17:30:53,419 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 17:30:53,507 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 17:30:53,519 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 17:30:53,674 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 17:30:53,679 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 17:30:53,679 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-08-29 17:30:53,681 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 05:30:53 BoogieIcfgContainer [2023-08-29 17:30:53,681 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 17:30:53,682 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 17:30:53,682 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 17:30:53,684 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 17:30:53,685 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 05:30:52" (1/3) ... [2023-08-29 17:30:53,685 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9cd4aa6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 05:30:53, skipping insertion in model container [2023-08-29 17:30:53,685 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:30:53" (2/3) ... [2023-08-29 17:30:53,686 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9cd4aa6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 05:30:53, skipping insertion in model container [2023-08-29 17:30:53,686 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 05:30:53" (3/3) ... [2023-08-29 17:30:53,687 INFO L112 eAbstractionObserver]: Analyzing ICFG 05-lval_ls_13-idxunknown_lock.i [2023-08-29 17:30:53,692 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-29 17:30:53,705 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 17:30:53,705 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-08-29 17:30:53,706 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 17:30:53,744 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-29 17:30:53,768 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 91 places, 90 transitions, 185 flow [2023-08-29 17:30:53,810 INFO L130 PetriNetUnfolder]: 3/89 cut-off events. [2023-08-29 17:30:53,810 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 17:30:53,813 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 17:30:53,813 INFO L82 GeneralOperation]: Start removeDead. Operand has 91 places, 90 transitions, 185 flow [2023-08-29 17:30:53,818 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 90 places, 89 transitions, 181 flow [2023-08-29 17:30:53,822 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 17:30:53,838 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 90 places, 89 transitions, 181 flow [2023-08-29 17:30:53,847 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 90 places, 89 transitions, 181 flow [2023-08-29 17:30:53,847 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 90 places, 89 transitions, 181 flow [2023-08-29 17:30:53,868 INFO L130 PetriNetUnfolder]: 3/89 cut-off events. [2023-08-29 17:30:53,868 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 17:30:53,868 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 17:30:53,870 INFO L119 LiptonReduction]: Number of co-enabled transitions 1450 [2023-08-29 17:30:55,097 INFO L134 LiptonReduction]: Checked pairs total: 7570 [2023-08-29 17:30:55,098 INFO L136 LiptonReduction]: Total number of compositions: 59 [2023-08-29 17:30:55,107 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 17:30:55,112 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;@4f4fb423, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 17:30:55,112 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-08-29 17:30:55,124 INFO L130 PetriNetUnfolder]: 1/16 cut-off events. [2023-08-29 17:30:55,124 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 17:30:55,124 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:30:55,125 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:30:55,125 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 17:30:55,129 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:30:55,129 INFO L85 PathProgramCache]: Analyzing trace with hash 901930037, now seen corresponding path program 1 times [2023-08-29 17:30:55,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:30:55,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319066918] [2023-08-29 17:30:55,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:30:55,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:30:55,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:30:55,344 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 17:30:55,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:30:55,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319066918] [2023-08-29 17:30:55,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1319066918] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:30:55,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:30:55,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 17:30:55,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567464501] [2023-08-29 17:30:55,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:30:55,358 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 17:30:55,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:30:55,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 17:30:55,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 17:30:55,396 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 149 [2023-08-29 17:30:55,399 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 17:30:55,399 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:30:55,399 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 149 [2023-08-29 17:30:55,400 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:30:55,458 INFO L130 PetriNetUnfolder]: 37/169 cut-off events. [2023-08-29 17:30:55,459 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 17:30:55,460 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 17:30:55,461 INFO L137 encePairwiseOnDemand]: 146/149 looper letters, 15 selfloop transitions, 2 changer transitions 0/37 dead transitions. [2023-08-29 17:30:55,461 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 37 transitions, 111 flow [2023-08-29 17:30:55,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 17:30:55,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 17:30:55,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 267 transitions. [2023-08-29 17:30:55,474 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5973154362416108 [2023-08-29 17:30:55,475 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 267 transitions. [2023-08-29 17:30:55,475 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 267 transitions. [2023-08-29 17:30:55,477 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:30:55,479 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 267 transitions. [2023-08-29 17:30:55,482 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 17:30:55,485 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 17:30:55,486 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 17:30:55,487 INFO L175 Difference]: Start difference. First operand has 39 places, 36 transitions, 75 flow. Second operand 3 states and 267 transitions. [2023-08-29 17:30:55,488 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 37 transitions, 111 flow [2023-08-29 17:30:55,489 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 17:30:55,490 INFO L231 Difference]: Finished difference. Result has 41 places, 37 transitions, 86 flow [2023-08-29 17:30:55,491 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 17:30:55,493 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 2 predicate places. [2023-08-29 17:30:55,494 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 37 transitions, 86 flow [2023-08-29 17:30:55,494 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 17:30:55,494 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:30:55,494 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:30:55,494 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-29 17:30:55,494 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 17:30:55,500 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:30:55,501 INFO L85 PathProgramCache]: Analyzing trace with hash 1406199424, now seen corresponding path program 1 times [2023-08-29 17:30:55,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:30:55,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417391139] [2023-08-29 17:30:55,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:30:55,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:30:55,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:30:55,615 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 17:30:55,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:30:55,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417391139] [2023-08-29 17:30:55,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [417391139] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-29 17:30:55,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1524116144] [2023-08-29 17:30:55,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:30:55,617 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 17:30:55,617 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 17:30:55,623 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 17:30:55,626 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 17:30:55,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:30:55,685 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 3 conjunts are in the unsatisfiable core [2023-08-29 17:30:55,687 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 17:30:55,707 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 17:30:55,707 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-29 17:30:55,735 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 17:30:55,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1524116144] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-29 17:30:55,736 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-29 17:30:55,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2023-08-29 17:30:55,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221833297] [2023-08-29 17:30:55,737 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-29 17:30:55,737 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-29 17:30:55,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:30:55,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-29 17:30:55,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-08-29 17:30:55,757 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 149 [2023-08-29 17:30:55,758 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 17:30:55,758 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:30:55,758 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 149 [2023-08-29 17:30:55,758 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:30:55,824 INFO L130 PetriNetUnfolder]: 37/172 cut-off events. [2023-08-29 17:30:55,826 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 17:30:55,826 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 17:30:55,827 INFO L137 encePairwiseOnDemand]: 146/149 looper letters, 15 selfloop transitions, 5 changer transitions 0/40 dead transitions. [2023-08-29 17:30:55,839 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 40 transitions, 138 flow [2023-08-29 17:30:55,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 17:30:55,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 17:30:55,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 515 transitions. [2023-08-29 17:30:55,841 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5760626398210291 [2023-08-29 17:30:55,842 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 515 transitions. [2023-08-29 17:30:55,842 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 515 transitions. [2023-08-29 17:30:55,842 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:30:55,842 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 515 transitions. [2023-08-29 17:30:55,843 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 17:30:55,845 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 17:30:55,845 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 17:30:55,845 INFO L175 Difference]: Start difference. First operand has 41 places, 37 transitions, 86 flow. Second operand 6 states and 515 transitions. [2023-08-29 17:30:55,845 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 40 transitions, 138 flow [2023-08-29 17:30:55,846 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 17:30:55,846 INFO L231 Difference]: Finished difference. Result has 48 places, 40 transitions, 118 flow [2023-08-29 17:30:55,847 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 17:30:55,847 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 9 predicate places. [2023-08-29 17:30:55,847 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 40 transitions, 118 flow [2023-08-29 17:30:55,848 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 17:30:55,848 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:30:55,848 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:30:55,855 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 17:30:56,053 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 17:30:56,054 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 17:30:56,054 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:30:56,054 INFO L85 PathProgramCache]: Analyzing trace with hash -274375579, now seen corresponding path program 2 times [2023-08-29 17:30:56,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:30:56,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90886575] [2023-08-29 17:30:56,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:30:56,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:30:56,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:30:56,412 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 17:30:56,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:30:56,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90886575] [2023-08-29 17:30:56,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [90886575] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:30:56,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:30:56,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 17:30:56,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866300588] [2023-08-29 17:30:56,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:30:56,416 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 17:30:56,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:30:56,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 17:30:56,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 17:30:56,533 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 149 [2023-08-29 17:30:56,534 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 17:30:56,534 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:30:56,534 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 149 [2023-08-29 17:30:56,534 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:30:56,711 INFO L130 PetriNetUnfolder]: 310/735 cut-off events. [2023-08-29 17:30:56,711 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-29 17:30:56,712 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 17:30:56,714 INFO L137 encePairwiseOnDemand]: 127/149 looper letters, 109 selfloop transitions, 42 changer transitions 0/154 dead transitions. [2023-08-29 17:30:56,714 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 154 transitions, 648 flow [2023-08-29 17:30:56,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 17:30:56,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 17:30:56,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 533 transitions. [2023-08-29 17:30:56,716 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5961968680089486 [2023-08-29 17:30:56,716 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 533 transitions. [2023-08-29 17:30:56,716 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 533 transitions. [2023-08-29 17:30:56,716 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:30:56,717 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 533 transitions. [2023-08-29 17:30:56,718 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 17:30:56,719 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 17:30:56,719 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 17:30:56,719 INFO L175 Difference]: Start difference. First operand has 48 places, 40 transitions, 118 flow. Second operand 6 states and 533 transitions. [2023-08-29 17:30:56,720 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 154 transitions, 648 flow [2023-08-29 17:30:56,721 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 17:30:56,722 INFO L231 Difference]: Finished difference. Result has 57 places, 86 transitions, 420 flow [2023-08-29 17:30:56,722 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 17:30:56,723 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 18 predicate places. [2023-08-29 17:30:56,723 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 86 transitions, 420 flow [2023-08-29 17:30:56,723 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 17:30:56,723 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:30:56,723 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 17:30:56,724 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-29 17:30:56,724 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 17:30:56,724 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:30:56,724 INFO L85 PathProgramCache]: Analyzing trace with hash 234845535, now seen corresponding path program 1 times [2023-08-29 17:30:56,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:30:56,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139767500] [2023-08-29 17:30:56,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:30:56,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:30:56,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:30:56,797 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 17:30:56,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:30:56,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139767500] [2023-08-29 17:30:56,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1139767500] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-29 17:30:56,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [862367310] [2023-08-29 17:30:56,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:30:56,798 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 17:30:56,799 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 17:30:56,800 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 17:30:56,807 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 17:30:56,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:30:56,863 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 6 conjunts are in the unsatisfiable core [2023-08-29 17:30:56,863 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 17:30:56,876 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 17:30:56,876 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-29 17:30:56,912 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 17:30:56,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [862367310] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-29 17:30:56,912 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-29 17:30:56,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2023-08-29 17:30:56,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691205959] [2023-08-29 17:30:56,913 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-29 17:30:56,913 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-29 17:30:56,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:30:56,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-29 17:30:56,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2023-08-29 17:30:56,942 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 149 [2023-08-29 17:30:56,943 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 17:30:56,943 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:30:56,944 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 149 [2023-08-29 17:30:56,944 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:30:57,011 INFO L130 PetriNetUnfolder]: 150/506 cut-off events. [2023-08-29 17:30:57,012 INFO L131 PetriNetUnfolder]: For 268/278 co-relation queries the response was YES. [2023-08-29 17:30:57,013 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 17:30:57,014 INFO L137 encePairwiseOnDemand]: 146/149 looper letters, 35 selfloop transitions, 11 changer transitions 0/92 dead transitions. [2023-08-29 17:30:57,014 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 92 transitions, 548 flow [2023-08-29 17:30:57,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-29 17:30:57,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-29 17:30:57,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1016 transitions. [2023-08-29 17:30:57,016 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5682326621923938 [2023-08-29 17:30:57,017 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1016 transitions. [2023-08-29 17:30:57,017 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1016 transitions. [2023-08-29 17:30:57,017 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:30:57,017 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1016 transitions. [2023-08-29 17:30:57,019 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 17:30:57,021 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 17:30:57,021 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 17:30:57,021 INFO L175 Difference]: Start difference. First operand has 57 places, 86 transitions, 420 flow. Second operand 12 states and 1016 transitions. [2023-08-29 17:30:57,021 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 92 transitions, 548 flow [2023-08-29 17:30:57,024 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 17:30:57,026 INFO L231 Difference]: Finished difference. Result has 74 places, 92 transitions, 504 flow [2023-08-29 17:30:57,026 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 17:30:57,026 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 35 predicate places. [2023-08-29 17:30:57,026 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 92 transitions, 504 flow [2023-08-29 17:30:57,027 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 17:30:57,027 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:30:57,027 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 17:30:57,057 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-08-29 17:30:57,258 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 17:30:57,259 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 17:30:57,259 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:30:57,259 INFO L85 PathProgramCache]: Analyzing trace with hash 1376950143, now seen corresponding path program 2 times [2023-08-29 17:30:57,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:30:57,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053777014] [2023-08-29 17:30:57,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:30:57,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:30:57,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:30:57,578 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 17:30:57,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:30:57,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053777014] [2023-08-29 17:30:57,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1053777014] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:30:57,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:30:57,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 17:30:57,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903010682] [2023-08-29 17:30:57,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:30:57,579 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 17:30:57,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:30:57,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 17:30:57,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 17:30:57,660 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 149 [2023-08-29 17:30:57,660 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 17:30:57,660 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:30:57,660 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 149 [2023-08-29 17:30:57,660 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:30:57,852 INFO L130 PetriNetUnfolder]: 438/1007 cut-off events. [2023-08-29 17:30:57,852 INFO L131 PetriNetUnfolder]: For 568/577 co-relation queries the response was YES. [2023-08-29 17:30:57,854 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 17:30:57,856 INFO L137 encePairwiseOnDemand]: 132/149 looper letters, 120 selfloop transitions, 53 changer transitions 6/183 dead transitions. [2023-08-29 17:30:57,856 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 183 transitions, 1230 flow [2023-08-29 17:30:57,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 17:30:57,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 17:30:57,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 481 transitions. [2023-08-29 17:30:57,858 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5380313199105146 [2023-08-29 17:30:57,858 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 481 transitions. [2023-08-29 17:30:57,858 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 481 transitions. [2023-08-29 17:30:57,858 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:30:57,858 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 481 transitions. [2023-08-29 17:30:57,859 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 17:30:57,860 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 17:30:57,860 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 17:30:57,860 INFO L175 Difference]: Start difference. First operand has 74 places, 92 transitions, 504 flow. Second operand 6 states and 481 transitions. [2023-08-29 17:30:57,861 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 183 transitions, 1230 flow [2023-08-29 17:30:57,863 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 17:30:57,865 INFO L231 Difference]: Finished difference. Result has 79 places, 143 transitions, 962 flow [2023-08-29 17:30:57,865 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 17:30:57,866 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 40 predicate places. [2023-08-29 17:30:57,866 INFO L495 AbstractCegarLoop]: Abstraction has has 79 places, 143 transitions, 962 flow [2023-08-29 17:30:57,866 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 17:30:57,866 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:30:57,867 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 17:30:57,867 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-29 17:30:57,867 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 17:30:57,867 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:30:57,867 INFO L85 PathProgramCache]: Analyzing trace with hash 1108843049, now seen corresponding path program 1 times [2023-08-29 17:30:57,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:30:57,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548144956] [2023-08-29 17:30:57,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:30:57,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:30:57,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:30:58,069 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 17:30:58,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:30:58,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548144956] [2023-08-29 17:30:58,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [548144956] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:30:58,070 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:30:58,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 17:30:58,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850001855] [2023-08-29 17:30:58,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:30:58,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 17:30:58,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:30:58,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 17:30:58,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 17:30:58,153 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 149 [2023-08-29 17:30:58,154 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 17:30:58,154 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:30:58,154 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 149 [2023-08-29 17:30:58,154 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:30:58,356 INFO L130 PetriNetUnfolder]: 539/1219 cut-off events. [2023-08-29 17:30:58,356 INFO L131 PetriNetUnfolder]: For 2030/2055 co-relation queries the response was YES. [2023-08-29 17:30:58,359 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 17:30:58,362 INFO L137 encePairwiseOnDemand]: 132/149 looper letters, 138 selfloop transitions, 58 changer transitions 43/243 dead transitions. [2023-08-29 17:30:58,362 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 243 transitions, 2006 flow [2023-08-29 17:30:58,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 17:30:58,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 17:30:58,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 483 transitions. [2023-08-29 17:30:58,364 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.540268456375839 [2023-08-29 17:30:58,364 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 483 transitions. [2023-08-29 17:30:58,364 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 483 transitions. [2023-08-29 17:30:58,364 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:30:58,364 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 483 transitions. [2023-08-29 17:30:58,365 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 17:30:58,366 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 17:30:58,366 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 17:30:58,366 INFO L175 Difference]: Start difference. First operand has 79 places, 143 transitions, 962 flow. Second operand 6 states and 483 transitions. [2023-08-29 17:30:58,366 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 243 transitions, 2006 flow [2023-08-29 17:30:58,372 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 17:30:58,374 INFO L231 Difference]: Finished difference. Result has 88 places, 170 transitions, 1362 flow [2023-08-29 17:30:58,374 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 17:30:58,375 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 49 predicate places. [2023-08-29 17:30:58,375 INFO L495 AbstractCegarLoop]: Abstraction has has 88 places, 170 transitions, 1362 flow [2023-08-29 17:30:58,375 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 17:30:58,375 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:30:58,375 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 17:30:58,375 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-29 17:30:58,375 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 17:30:58,376 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:30:58,376 INFO L85 PathProgramCache]: Analyzing trace with hash 771160099, now seen corresponding path program 1 times [2023-08-29 17:30:58,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:30:58,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162929967] [2023-08-29 17:30:58,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:30:58,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:30:58,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-29 17:30:58,396 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-29 17:30:58,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-29 17:30:58,421 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-29 17:30:58,421 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-29 17:30:58,421 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (6 of 7 remaining) [2023-08-29 17:30:58,423 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (5 of 7 remaining) [2023-08-29 17:30:58,423 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (4 of 7 remaining) [2023-08-29 17:30:58,423 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 7 remaining) [2023-08-29 17:30:58,423 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (2 of 7 remaining) [2023-08-29 17:30:58,423 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 7 remaining) [2023-08-29 17:30:58,423 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 7 remaining) [2023-08-29 17:30:58,423 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-29 17:30:58,424 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1] [2023-08-29 17:30:58,427 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-29 17:30:58,427 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-29 17:30:58,456 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 05:30:58 BasicIcfg [2023-08-29 17:30:58,456 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-29 17:30:58,457 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-29 17:30:58,457 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-29 17:30:58,457 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-29 17:30:58,457 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 05:30:53" (3/4) ... [2023-08-29 17:30:58,459 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-08-29 17:30:58,459 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-29 17:30:58,459 INFO L158 Benchmark]: Toolchain (without parser) took 5526.16ms. Allocated memory was 79.7MB in the beginning and 197.1MB in the end (delta: 117.4MB). Free memory was 53.9MB in the beginning and 171.5MB in the end (delta: -117.6MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 17:30:58,460 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 58.7MB. Free memory is still 36.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 17:30:58,460 INFO L158 Benchmark]: CACSL2BoogieTranslator took 323.49ms. Allocated memory is still 79.7MB. Free memory was 53.6MB in the beginning and 53.5MB in the end (delta: 182.3kB). Peak memory consumption was 16.6MB. Max. memory is 16.1GB. [2023-08-29 17:30:58,460 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.78ms. Allocated memory is still 79.7MB. Free memory was 53.1MB in the beginning and 51.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 17:30:58,460 INFO L158 Benchmark]: Boogie Preprocessor took 42.21ms. Allocated memory is still 79.7MB. Free memory was 51.0MB in the beginning and 49.6MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 17:30:58,461 INFO L158 Benchmark]: RCFGBuilder took 332.99ms. Allocated memory is still 79.7MB. Free memory was 49.3MB in the beginning and 34.2MB in the end (delta: 15.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-08-29 17:30:58,461 INFO L158 Benchmark]: TraceAbstraction took 4774.09ms. Allocated memory was 79.7MB in the beginning and 197.1MB in the end (delta: 117.4MB). Free memory was 33.8MB in the beginning and 172.5MB in the end (delta: -138.7MB). Peak memory consumption was 63.0MB. Max. memory is 16.1GB. [2023-08-29 17:30:58,461 INFO L158 Benchmark]: Witness Printer took 2.30ms. Allocated memory is still 197.1MB. Free memory was 172.5MB in the beginning and 171.5MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 17:30:58,463 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 58.7MB. Free memory is still 36.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 323.49ms. Allocated memory is still 79.7MB. Free memory was 53.6MB in the beginning and 53.5MB in the end (delta: 182.3kB). Peak memory consumption was 16.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.78ms. Allocated memory is still 79.7MB. Free memory was 53.1MB in the beginning and 51.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 42.21ms. Allocated memory is still 79.7MB. Free memory was 51.0MB in the beginning and 49.6MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 332.99ms. Allocated memory is still 79.7MB. Free memory was 49.3MB in the beginning and 34.2MB in the end (delta: 15.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 4774.09ms. Allocated memory was 79.7MB in the beginning and 197.1MB in the end (delta: 117.4MB). Free memory was 33.8MB in the beginning and 172.5MB in the end (delta: -138.7MB). Peak memory consumption was 63.0MB. Max. memory is 16.1GB. * Witness Printer took 2.30ms. Allocated memory is still 197.1MB. Free memory was 172.5MB in the beginning and 171.5MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.3s, 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: 4.7s, OverallIterations: 7, TraceHistogramMax: 10, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 387 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 234 mSDsluCounter, 31 SdHoareTripleChecker+Invalid, 0.6s 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, 0.1s 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, 1.2s 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 17:30:58,494 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