./Ultimate.py --spec /storage/repos/ultimate/trunk/examples/svcomp/properties/no-data-race.prp --file /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_67-pthread_cond_wait_unknown_1_pos.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version efd9311c 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 /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_67-pthread_cond_wait_unknown_1_pos.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 1cd82b96c01a730247618eab1464d47c03eec9013c1d245312913e94981f2bce --- Real Ultimate output --- This is Ultimate 0.2.2-dev-efd9311-m [2022-04-18 15:48:58,287 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-18 15:48:58,289 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-18 15:48:58,311 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-18 15:48:58,311 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-18 15:48:58,312 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-18 15:48:58,315 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-18 15:48:58,318 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-18 15:48:58,320 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-18 15:48:58,324 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-18 15:48:58,325 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-18 15:48:58,327 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-18 15:48:58,327 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-18 15:48:58,329 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-18 15:48:58,330 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-18 15:48:58,332 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-18 15:48:58,332 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-18 15:48:58,334 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-18 15:48:58,337 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-18 15:48:58,342 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-18 15:48:58,345 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-18 15:48:58,345 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-18 15:48:58,346 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-18 15:48:58,347 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-18 15:48:58,348 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-18 15:48:58,350 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-18 15:48:58,350 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-18 15:48:58,350 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-18 15:48:58,351 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-18 15:48:58,351 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-18 15:48:58,352 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-04-18 15:48:58,353 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-18 15:48:58,354 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-18 15:48:58,354 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-18 15:48:58,355 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-18 15:48:58,355 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-18 15:48:58,355 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-18 15:48:58,356 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-18 15:48:58,356 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-18 15:48:58,356 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-18 15:48:58,357 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-18 15:48:58,358 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-18 15:48:58,359 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-04-18 15:48:58,388 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-18 15:48:58,388 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-18 15:48:58,388 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-04-18 15:48:58,388 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-04-18 15:48:58,389 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-18 15:48:58,389 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-18 15:48:58,389 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-04-18 15:48:58,390 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-04-18 15:48:58,390 INFO L138 SettingsManager]: * Use SBE=true [2022-04-18 15:48:58,390 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-18 15:48:58,391 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-18 15:48:58,391 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-04-18 15:48:58,391 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-18 15:48:58,391 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-18 15:48:58,391 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-18 15:48:58,391 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-18 15:48:58,391 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-18 15:48:58,391 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-18 15:48:58,392 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-04-18 15:48:58,392 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-18 15:48:58,392 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-18 15:48:58,392 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-18 15:48:58,392 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-18 15:48:58,392 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-18 15:48:58,393 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-18 15:48:58,393 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-18 15:48:58,393 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 15:48:58,393 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-18 15:48:58,393 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-18 15:48:58,393 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-18 15:48:58,394 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-18 15:48:58,394 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-18 15:48:58,394 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-04-18 15:48:58,394 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-04-18 15:48:58,394 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-18 15:48:58,394 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1cd82b96c01a730247618eab1464d47c03eec9013c1d245312913e94981f2bce [2022-04-18 15:48:58,563 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-18 15:48:58,598 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-18 15:48:58,600 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-18 15:48:58,601 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-18 15:48:58,603 INFO L275 PluginConnector]: CDTParser initialized [2022-04-18 15:48:58,604 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_67-pthread_cond_wait_unknown_1_pos.i [2022-04-18 15:48:58,652 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/49d6aeabe/306b56f1ffb146779f2d94a31b81567b/FLAG3f05e5e1c [2022-04-18 15:48:59,103 INFO L306 CDTParser]: Found 1 translation units. [2022-04-18 15:48:59,107 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_67-pthread_cond_wait_unknown_1_pos.i [2022-04-18 15:48:59,120 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/49d6aeabe/306b56f1ffb146779f2d94a31b81567b/FLAG3f05e5e1c [2022-04-18 15:48:59,129 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/49d6aeabe/306b56f1ffb146779f2d94a31b81567b [2022-04-18 15:48:59,130 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-18 15:48:59,131 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-04-18 15:48:59,135 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-18 15:48:59,135 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-18 15:48:59,138 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-18 15:48:59,138 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 03:48:59" (1/1) ... [2022-04-18 15:48:59,139 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60fbe98c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:48:59, skipping insertion in model container [2022-04-18 15:48:59,139 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 03:48:59" (1/1) ... [2022-04-18 15:48:59,144 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-18 15:48:59,176 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-18 15:48:59,301 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_67-pthread_cond_wait_unknown_1_pos.i[1103,1116] [2022-04-18 15:48:59,469 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 15:48:59,482 INFO L203 MainTranslator]: Completed pre-run [2022-04-18 15:48:59,490 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_67-pthread_cond_wait_unknown_1_pos.i[1103,1116] [2022-04-18 15:48:59,517 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 15:48:59,577 INFO L208 MainTranslator]: Completed translation [2022-04-18 15:48:59,578 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:48:59 WrapperNode [2022-04-18 15:48:59,578 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-18 15:48:59,579 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-04-18 15:48:59,579 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-04-18 15:48:59,579 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-04-18 15:48:59,584 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:48:59" (1/1) ... [2022-04-18 15:48:59,601 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:48:59" (1/1) ... [2022-04-18 15:48:59,626 INFO L137 Inliner]: procedures = 354, calls = 39, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 91 [2022-04-18 15:48:59,626 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-04-18 15:48:59,626 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-18 15:48:59,627 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-18 15:48:59,627 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-18 15:48:59,633 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:48:59" (1/1) ... [2022-04-18 15:48:59,633 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:48:59" (1/1) ... [2022-04-18 15:48:59,636 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:48:59" (1/1) ... [2022-04-18 15:48:59,636 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:48:59" (1/1) ... [2022-04-18 15:48:59,645 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:48:59" (1/1) ... [2022-04-18 15:48:59,652 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:48:59" (1/1) ... [2022-04-18 15:48:59,655 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:48:59" (1/1) ... [2022-04-18 15:48:59,658 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-18 15:48:59,659 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-18 15:48:59,659 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-18 15:48:59,659 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-18 15:48:59,661 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:48:59" (1/1) ... [2022-04-18 15:48:59,669 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 15:48:59,679 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-18 15:48:59,688 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) [2022-04-18 15:48:59,689 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 [2022-04-18 15:48:59,712 INFO L130 BoogieDeclarations]: Found specification of procedure sleep [2022-04-18 15:48:59,712 INFO L130 BoogieDeclarations]: Found specification of procedure f1 [2022-04-18 15:48:59,712 INFO L138 BoogieDeclarations]: Found implementation of procedure f1 [2022-04-18 15:48:59,712 INFO L130 BoogieDeclarations]: Found specification of procedure f2 [2022-04-18 15:48:59,713 INFO L138 BoogieDeclarations]: Found implementation of procedure f2 [2022-04-18 15:48:59,713 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-04-18 15:48:59,714 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-18 15:48:59,714 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-18 15:48:59,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-18 15:48:59,714 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-04-18 15:48:59,714 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-18 15:48:59,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-18 15:48:59,714 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-18 15:48:59,714 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-18 15:48:59,716 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-04-18 15:48:59,913 INFO L234 CfgBuilder]: Building ICFG [2022-04-18 15:48:59,914 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-18 15:49:00,087 INFO L275 CfgBuilder]: Performing block encoding [2022-04-18 15:49:00,096 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-18 15:49:00,096 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-04-18 15:49:00,098 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 03:49:00 BoogieIcfgContainer [2022-04-18 15:49:00,098 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-18 15:49:00,100 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-18 15:49:00,100 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-18 15:49:00,102 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-18 15:49:00,103 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 03:48:59" (1/3) ... [2022-04-18 15:49:00,103 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50531fd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 03:49:00, skipping insertion in model container [2022-04-18 15:49:00,104 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 03:48:59" (2/3) ... [2022-04-18 15:49:00,104 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50531fd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 03:49:00, skipping insertion in model container [2022-04-18 15:49:00,104 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 03:49:00" (3/3) ... [2022-04-18 15:49:00,106 INFO L111 eAbstractionObserver]: Analyzing ICFG 13-privatized_67-pthread_cond_wait_unknown_1_pos.i [2022-04-18 15:49:00,111 WARN L147 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-04-18 15:49:00,111 INFO L202 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-18 15:49:00,112 INFO L161 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2022-04-18 15:49:00,112 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-04-18 15:49:00,164 INFO L135 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-04-18 15:49:00,208 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-18 15:49:00,217 INFO L340 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 [2022-04-18 15:49:00,217 INFO L341 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2022-04-18 15:49:00,228 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 133 places, 127 transitions, 270 flow [2022-04-18 15:49:00,271 INFO L129 PetriNetUnfolder]: 1/125 cut-off events. [2022-04-18 15:49:00,271 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-04-18 15:49:00,277 INFO L84 FinitePrefix]: Finished finitePrefix Result has 134 conditions, 125 events. 1/125 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 113 event pairs, 0 based on Foata normal form. 0/117 useless extension candidates. Maximal degree in co-relation 68. Up to 2 conditions per place. [2022-04-18 15:49:00,277 INFO L82 GeneralOperation]: Start removeDead. Operand has 133 places, 127 transitions, 270 flow [2022-04-18 15:49:00,281 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 121 places, 115 transitions, 239 flow [2022-04-18 15:49:00,294 INFO L129 PetriNetUnfolder]: 0/52 cut-off events. [2022-04-18 15:49:00,294 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-04-18 15:49:00,294 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 15:49:00,294 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 15:49:00,295 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting f1Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 11 more)] === [2022-04-18 15:49:00,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 15:49:00,298 INFO L85 PathProgramCache]: Analyzing trace with hash -1056837341, now seen corresponding path program 1 times [2022-04-18 15:49:00,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 15:49:00,304 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107062] [2022-04-18 15:49:00,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 15:49:00,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 15:49:00,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 15:49:00,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 15:49:00,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 15:49:00,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107062] [2022-04-18 15:49:00,568 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107062] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 15:49:00,569 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 15:49:00,569 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 15:49:00,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700990264] [2022-04-18 15:49:00,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 15:49:00,576 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 15:49:00,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 15:49:00,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 15:49:00,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 15:49:00,595 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 127 [2022-04-18 15:49:00,598 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 115 transitions, 239 flow. Second operand has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 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) [2022-04-18 15:49:00,598 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 15:49:00,598 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 127 [2022-04-18 15:49:00,599 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 15:49:00,751 INFO L129 PetriNetUnfolder]: 91/460 cut-off events. [2022-04-18 15:49:00,751 INFO L130 PetriNetUnfolder]: For 33/33 co-relation queries the response was YES. [2022-04-18 15:49:00,755 INFO L84 FinitePrefix]: Finished finitePrefix Result has 699 conditions, 460 events. 91/460 cut-off events. For 33/33 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 2177 event pairs, 66 based on Foata normal form. 8/389 useless extension candidates. Maximal degree in co-relation 575. Up to 173 conditions per place. [2022-04-18 15:49:00,758 INFO L132 encePairwiseOnDemand]: 120/127 looper letters, 24 selfloop transitions, 5 changer transitions 0/122 dead transitions. [2022-04-18 15:49:00,759 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 122 transitions, 314 flow [2022-04-18 15:49:00,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 15:49:00,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 15:49:00,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 344 transitions. [2022-04-18 15:49:00,773 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9028871391076115 [2022-04-18 15:49:00,773 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 344 transitions. [2022-04-18 15:49:00,774 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 344 transitions. [2022-04-18 15:49:00,782 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 15:49:00,783 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 344 transitions. [2022-04-18 15:49:00,789 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 114.66666666666667) internal successors, (344), 3 states have internal predecessors, (344), 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) [2022-04-18 15:49:00,794 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 127.0) internal successors, (508), 4 states have internal predecessors, (508), 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) [2022-04-18 15:49:00,794 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 127.0) internal successors, (508), 4 states have internal predecessors, (508), 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) [2022-04-18 15:49:00,795 INFO L186 Difference]: Start difference. First operand has 121 places, 115 transitions, 239 flow. Second operand 3 states and 344 transitions. [2022-04-18 15:49:00,796 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 122 transitions, 314 flow [2022-04-18 15:49:00,799 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 122 transitions, 308 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-04-18 15:49:00,802 INFO L242 Difference]: Finished difference. Result has 121 places, 117 transitions, 268 flow [2022-04-18 15:49:00,803 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=230, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=268, PETRI_PLACES=121, PETRI_TRANSITIONS=117} [2022-04-18 15:49:00,808 INFO L335 CegarLoopForPetriNet]: 121 programPoint places, 0 predicate places. [2022-04-18 15:49:00,808 INFO L478 AbstractCegarLoop]: Abstraction has has 121 places, 117 transitions, 268 flow [2022-04-18 15:49:00,809 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 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) [2022-04-18 15:49:00,809 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 15:49:00,809 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 15:49:00,809 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-18 15:49:00,810 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting f2Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 11 more)] === [2022-04-18 15:49:00,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 15:49:00,810 INFO L85 PathProgramCache]: Analyzing trace with hash 1122866776, now seen corresponding path program 1 times [2022-04-18 15:49:00,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 15:49:00,811 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812599013] [2022-04-18 15:49:00,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 15:49:00,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 15:49:00,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 15:49:00,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 15:49:00,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 15:49:00,931 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812599013] [2022-04-18 15:49:00,931 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1812599013] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 15:49:00,932 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 15:49:00,932 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 15:49:00,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436712000] [2022-04-18 15:49:00,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 15:49:00,934 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 15:49:00,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 15:49:00,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 15:49:00,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 15:49:00,936 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 127 [2022-04-18 15:49:00,937 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 117 transitions, 268 flow. Second operand has 3 states, 3 states have (on average 107.33333333333333) internal successors, (322), 3 states have internal predecessors, (322), 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) [2022-04-18 15:49:00,940 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 15:49:00,940 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 127 [2022-04-18 15:49:00,940 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 15:49:01,027 INFO L129 PetriNetUnfolder]: 80/481 cut-off events. [2022-04-18 15:49:01,028 INFO L130 PetriNetUnfolder]: For 80/94 co-relation queries the response was YES. [2022-04-18 15:49:01,030 INFO L84 FinitePrefix]: Finished finitePrefix Result has 775 conditions, 481 events. 80/481 cut-off events. For 80/94 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 2530 event pairs, 30 based on Foata normal form. 1/420 useless extension candidates. Maximal degree in co-relation 660. Up to 118 conditions per place. [2022-04-18 15:49:01,032 INFO L132 encePairwiseOnDemand]: 118/127 looper letters, 29 selfloop transitions, 9 changer transitions 0/134 dead transitions. [2022-04-18 15:49:01,032 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 134 transitions, 401 flow [2022-04-18 15:49:01,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 15:49:01,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 15:49:01,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 353 transitions. [2022-04-18 15:49:01,035 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.926509186351706 [2022-04-18 15:49:01,035 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 353 transitions. [2022-04-18 15:49:01,035 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 353 transitions. [2022-04-18 15:49:01,035 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 15:49:01,035 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 353 transitions. [2022-04-18 15:49:01,036 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 117.66666666666667) internal successors, (353), 3 states have internal predecessors, (353), 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) [2022-04-18 15:49:01,038 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 127.0) internal successors, (508), 4 states have internal predecessors, (508), 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) [2022-04-18 15:49:01,038 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 127.0) internal successors, (508), 4 states have internal predecessors, (508), 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) [2022-04-18 15:49:01,038 INFO L186 Difference]: Start difference. First operand has 121 places, 117 transitions, 268 flow. Second operand 3 states and 353 transitions. [2022-04-18 15:49:01,039 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 134 transitions, 401 flow [2022-04-18 15:49:01,042 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 134 transitions, 385 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 15:49:01,044 INFO L242 Difference]: Finished difference. Result has 123 places, 125 transitions, 338 flow [2022-04-18 15:49:01,044 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=258, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=338, PETRI_PLACES=123, PETRI_TRANSITIONS=125} [2022-04-18 15:49:01,045 INFO L335 CegarLoopForPetriNet]: 121 programPoint places, 2 predicate places. [2022-04-18 15:49:01,045 INFO L478 AbstractCegarLoop]: Abstraction has has 123 places, 125 transitions, 338 flow [2022-04-18 15:49:01,045 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 107.33333333333333) internal successors, (322), 3 states have internal predecessors, (322), 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) [2022-04-18 15:49:01,045 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 15:49:01,046 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 15:49:01,046 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-18 15:49:01,046 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 11 more)] === [2022-04-18 15:49:01,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 15:49:01,047 INFO L85 PathProgramCache]: Analyzing trace with hash -1587457641, now seen corresponding path program 1 times [2022-04-18 15:49:01,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 15:49:01,047 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569194696] [2022-04-18 15:49:01,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 15:49:01,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 15:49:01,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 15:49:01,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 15:49:01,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 15:49:01,224 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569194696] [2022-04-18 15:49:01,224 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [569194696] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 15:49:01,225 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 15:49:01,225 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 15:49:01,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146882877] [2022-04-18 15:49:01,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 15:49:01,225 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 15:49:01,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 15:49:01,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 15:49:01,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 15:49:01,226 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 127 [2022-04-18 15:49:01,227 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 125 transitions, 338 flow. Second operand has 6 states, 6 states have (on average 104.83333333333333) internal successors, (629), 6 states have internal predecessors, (629), 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) [2022-04-18 15:49:01,227 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 15:49:01,227 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 127 [2022-04-18 15:49:01,227 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 15:49:01,303 INFO L129 PetriNetUnfolder]: 26/308 cut-off events. [2022-04-18 15:49:01,304 INFO L130 PetriNetUnfolder]: For 75/108 co-relation queries the response was YES. [2022-04-18 15:49:01,305 INFO L84 FinitePrefix]: Finished finitePrefix Result has 488 conditions, 308 events. 26/308 cut-off events. For 75/108 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1268 event pairs, 5 based on Foata normal form. 17/296 useless extension candidates. Maximal degree in co-relation 427. Up to 33 conditions per place. [2022-04-18 15:49:01,306 INFO L132 encePairwiseOnDemand]: 122/127 looper letters, 14 selfloop transitions, 4 changer transitions 0/124 dead transitions. [2022-04-18 15:49:01,306 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 124 transitions, 372 flow [2022-04-18 15:49:01,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 15:49:01,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-04-18 15:49:01,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 637 transitions. [2022-04-18 15:49:01,309 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8359580052493438 [2022-04-18 15:49:01,309 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 637 transitions. [2022-04-18 15:49:01,309 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 637 transitions. [2022-04-18 15:49:01,310 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 15:49:01,310 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 637 transitions. [2022-04-18 15:49:01,311 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 106.16666666666667) internal successors, (637), 6 states have internal predecessors, (637), 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) [2022-04-18 15:49:01,312 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 127.0) internal successors, (889), 7 states have internal predecessors, (889), 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) [2022-04-18 15:49:01,313 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 127.0) internal successors, (889), 7 states have internal predecessors, (889), 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) [2022-04-18 15:49:01,313 INFO L186 Difference]: Start difference. First operand has 123 places, 125 transitions, 338 flow. Second operand 6 states and 637 transitions. [2022-04-18 15:49:01,314 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 124 transitions, 372 flow [2022-04-18 15:49:01,316 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 124 transitions, 354 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 15:49:01,319 INFO L242 Difference]: Finished difference. Result has 125 places, 124 transitions, 326 flow [2022-04-18 15:49:01,319 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=318, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=120, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=326, PETRI_PLACES=125, PETRI_TRANSITIONS=124} [2022-04-18 15:49:01,321 INFO L335 CegarLoopForPetriNet]: 121 programPoint places, 4 predicate places. [2022-04-18 15:49:01,321 INFO L478 AbstractCegarLoop]: Abstraction has has 125 places, 124 transitions, 326 flow [2022-04-18 15:49:01,322 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 104.83333333333333) internal successors, (629), 6 states have internal predecessors, (629), 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) [2022-04-18 15:49:01,322 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 15:49:01,322 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 15:49:01,322 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-04-18 15:49:01,322 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting f1Err2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 11 more)] === [2022-04-18 15:49:01,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 15:49:01,324 INFO L85 PathProgramCache]: Analyzing trace with hash 1615984683, now seen corresponding path program 1 times [2022-04-18 15:49:01,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 15:49:01,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408654865] [2022-04-18 15:49:01,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 15:49:01,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 15:49:01,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 15:49:01,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 15:49:01,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 15:49:01,400 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408654865] [2022-04-18 15:49:01,400 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [408654865] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 15:49:01,401 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 15:49:01,401 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 15:49:01,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300464166] [2022-04-18 15:49:01,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 15:49:01,401 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 15:49:01,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 15:49:01,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 15:49:01,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 15:49:01,403 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 127 [2022-04-18 15:49:01,405 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 124 transitions, 326 flow. Second operand has 3 states, 3 states have (on average 106.66666666666667) internal successors, (320), 3 states have internal predecessors, (320), 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) [2022-04-18 15:49:01,405 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 15:49:01,405 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 127 [2022-04-18 15:49:01,405 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 15:49:01,488 INFO L129 PetriNetUnfolder]: 99/543 cut-off events. [2022-04-18 15:49:01,488 INFO L130 PetriNetUnfolder]: For 158/198 co-relation queries the response was YES. [2022-04-18 15:49:01,489 INFO L84 FinitePrefix]: Finished finitePrefix Result has 972 conditions, 543 events. 99/543 cut-off events. For 158/198 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 2902 event pairs, 45 based on Foata normal form. 2/476 useless extension candidates. Maximal degree in co-relation 870. Up to 192 conditions per place. [2022-04-18 15:49:01,492 INFO L132 encePairwiseOnDemand]: 121/127 looper letters, 35 selfloop transitions, 7 changer transitions 0/135 dead transitions. [2022-04-18 15:49:01,492 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 135 transitions, 452 flow [2022-04-18 15:49:01,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 15:49:01,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 15:49:01,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 342 transitions. [2022-04-18 15:49:01,494 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8976377952755905 [2022-04-18 15:49:01,494 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 342 transitions. [2022-04-18 15:49:01,494 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 342 transitions. [2022-04-18 15:49:01,496 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 15:49:01,497 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 342 transitions. [2022-04-18 15:49:01,498 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 114.0) internal successors, (342), 3 states have internal predecessors, (342), 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) [2022-04-18 15:49:01,499 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 127.0) internal successors, (508), 4 states have internal predecessors, (508), 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) [2022-04-18 15:49:01,499 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 127.0) internal successors, (508), 4 states have internal predecessors, (508), 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) [2022-04-18 15:49:01,499 INFO L186 Difference]: Start difference. First operand has 125 places, 124 transitions, 326 flow. Second operand 3 states and 342 transitions. [2022-04-18 15:49:01,499 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 135 transitions, 452 flow [2022-04-18 15:49:01,502 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 135 transitions, 445 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-04-18 15:49:01,505 INFO L242 Difference]: Finished difference. Result has 125 places, 129 transitions, 381 flow [2022-04-18 15:49:01,505 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=319, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=381, PETRI_PLACES=125, PETRI_TRANSITIONS=129} [2022-04-18 15:49:01,507 INFO L335 CegarLoopForPetriNet]: 121 programPoint places, 4 predicate places. [2022-04-18 15:49:01,507 INFO L478 AbstractCegarLoop]: Abstraction has has 125 places, 129 transitions, 381 flow [2022-04-18 15:49:01,508 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 106.66666666666667) internal successors, (320), 3 states have internal predecessors, (320), 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) [2022-04-18 15:49:01,508 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 15:49:01,508 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 15:49:01,508 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-04-18 15:49:01,510 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting f1Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 11 more)] === [2022-04-18 15:49:01,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 15:49:01,510 INFO L85 PathProgramCache]: Analyzing trace with hash 781504484, now seen corresponding path program 1 times [2022-04-18 15:49:01,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 15:49:01,511 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370056127] [2022-04-18 15:49:01,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 15:49:01,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 15:49:01,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 15:49:01,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 15:49:01,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 15:49:01,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370056127] [2022-04-18 15:49:01,612 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370056127] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 15:49:01,612 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 15:49:01,612 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-04-18 15:49:01,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40349606] [2022-04-18 15:49:01,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 15:49:01,612 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 15:49:01,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 15:49:01,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 15:49:01,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 15:49:01,613 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 127 [2022-04-18 15:49:01,614 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 129 transitions, 381 flow. Second operand has 3 states, 3 states have (on average 112.33333333333333) internal successors, (337), 3 states have internal predecessors, (337), 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) [2022-04-18 15:49:01,614 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 15:49:01,614 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 127 [2022-04-18 15:49:01,614 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 15:49:01,645 INFO L129 PetriNetUnfolder]: 8/218 cut-off events. [2022-04-18 15:49:01,645 INFO L130 PetriNetUnfolder]: For 39/39 co-relation queries the response was YES. [2022-04-18 15:49:01,646 INFO L84 FinitePrefix]: Finished finitePrefix Result has 335 conditions, 218 events. 8/218 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 523 event pairs, 5 based on Foata normal form. 4/212 useless extension candidates. Maximal degree in co-relation 217. Up to 23 conditions per place. [2022-04-18 15:49:01,646 INFO L132 encePairwiseOnDemand]: 121/127 looper letters, 11 selfloop transitions, 6 changer transitions 0/110 dead transitions. [2022-04-18 15:49:01,646 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 110 transitions, 300 flow [2022-04-18 15:49:01,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 15:49:01,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 15:49:01,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 347 transitions. [2022-04-18 15:49:01,648 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.910761154855643 [2022-04-18 15:49:01,648 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 347 transitions. [2022-04-18 15:49:01,648 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 347 transitions. [2022-04-18 15:49:01,648 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 15:49:01,648 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 347 transitions. [2022-04-18 15:49:01,649 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 115.66666666666667) internal successors, (347), 3 states have internal predecessors, (347), 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) [2022-04-18 15:49:01,650 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 127.0) internal successors, (508), 4 states have internal predecessors, (508), 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) [2022-04-18 15:49:01,650 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 127.0) internal successors, (508), 4 states have internal predecessors, (508), 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) [2022-04-18 15:49:01,650 INFO L186 Difference]: Start difference. First operand has 125 places, 129 transitions, 381 flow. Second operand 3 states and 347 transitions. [2022-04-18 15:49:01,650 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 110 transitions, 300 flow [2022-04-18 15:49:01,651 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 110 transitions, 262 flow, removed 9 selfloop flow, removed 8 redundant places. [2022-04-18 15:49:01,652 INFO L242 Difference]: Finished difference. Result has 115 places, 108 transitions, 233 flow [2022-04-18 15:49:01,653 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=221, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=233, PETRI_PLACES=115, PETRI_TRANSITIONS=108} [2022-04-18 15:49:01,653 INFO L335 CegarLoopForPetriNet]: 121 programPoint places, -6 predicate places. [2022-04-18 15:49:01,653 INFO L478 AbstractCegarLoop]: Abstraction has has 115 places, 108 transitions, 233 flow [2022-04-18 15:49:01,654 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 112.33333333333333) internal successors, (337), 3 states have internal predecessors, (337), 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) [2022-04-18 15:49:01,654 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 15:49:01,654 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 15:49:01,654 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-04-18 15:49:01,654 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting f2Err1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 11 more)] === [2022-04-18 15:49:01,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 15:49:01,655 INFO L85 PathProgramCache]: Analyzing trace with hash 173770623, now seen corresponding path program 1 times [2022-04-18 15:49:01,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 15:49:01,655 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133418918] [2022-04-18 15:49:01,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 15:49:01,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 15:49:01,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 15:49:01,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 15:49:01,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 15:49:01,694 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133418918] [2022-04-18 15:49:01,694 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1133418918] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 15:49:01,694 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 15:49:01,694 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 15:49:01,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536078815] [2022-04-18 15:49:01,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 15:49:01,695 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 15:49:01,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 15:49:01,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 15:49:01,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 15:49:01,696 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 127 [2022-04-18 15:49:01,696 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 108 transitions, 233 flow. Second operand has 3 states, 3 states have (on average 106.33333333333333) internal successors, (319), 3 states have internal predecessors, (319), 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) [2022-04-18 15:49:01,696 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 15:49:01,696 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 127 [2022-04-18 15:49:01,697 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 15:49:01,725 INFO L129 PetriNetUnfolder]: 14/238 cut-off events. [2022-04-18 15:49:01,725 INFO L130 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-04-18 15:49:01,725 INFO L84 FinitePrefix]: Finished finitePrefix Result has 332 conditions, 238 events. 14/238 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 722 event pairs, 12 based on Foata normal form. 0/227 useless extension candidates. Maximal degree in co-relation 226. Up to 49 conditions per place. [2022-04-18 15:49:01,726 INFO L132 encePairwiseOnDemand]: 124/127 looper letters, 14 selfloop transitions, 2 changer transitions 0/108 dead transitions. [2022-04-18 15:49:01,726 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 108 transitions, 266 flow [2022-04-18 15:49:01,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 15:49:01,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 15:49:01,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 329 transitions. [2022-04-18 15:49:01,727 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.863517060367454 [2022-04-18 15:49:01,728 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 329 transitions. [2022-04-18 15:49:01,728 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 329 transitions. [2022-04-18 15:49:01,728 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 15:49:01,728 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 329 transitions. [2022-04-18 15:49:01,729 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 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) [2022-04-18 15:49:01,729 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 127.0) internal successors, (508), 4 states have internal predecessors, (508), 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) [2022-04-18 15:49:01,730 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 127.0) internal successors, (508), 4 states have internal predecessors, (508), 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) [2022-04-18 15:49:01,730 INFO L186 Difference]: Start difference. First operand has 115 places, 108 transitions, 233 flow. Second operand 3 states and 329 transitions. [2022-04-18 15:49:01,730 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 108 transitions, 266 flow [2022-04-18 15:49:01,731 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 108 transitions, 260 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-04-18 15:49:01,732 INFO L242 Difference]: Finished difference. Result has 115 places, 107 transitions, 229 flow [2022-04-18 15:49:01,732 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=225, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=229, PETRI_PLACES=115, PETRI_TRANSITIONS=107} [2022-04-18 15:49:01,733 INFO L335 CegarLoopForPetriNet]: 121 programPoint places, -6 predicate places. [2022-04-18 15:49:01,733 INFO L478 AbstractCegarLoop]: Abstraction has has 115 places, 107 transitions, 229 flow [2022-04-18 15:49:01,733 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 106.33333333333333) internal successors, (319), 3 states have internal predecessors, (319), 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) [2022-04-18 15:49:01,733 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 15:49:01,733 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 15:49:01,733 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-04-18 15:49:01,734 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 11 more)] === [2022-04-18 15:49:01,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 15:49:01,734 INFO L85 PathProgramCache]: Analyzing trace with hash 38044389, now seen corresponding path program 1 times [2022-04-18 15:49:01,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 15:49:01,734 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426494429] [2022-04-18 15:49:01,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 15:49:01,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 15:49:01,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 15:49:01,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 15:49:01,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 15:49:01,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426494429] [2022-04-18 15:49:01,833 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [426494429] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 15:49:01,833 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 15:49:01,833 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 15:49:01,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936279325] [2022-04-18 15:49:01,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 15:49:01,833 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 15:49:01,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 15:49:01,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 15:49:01,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 15:49:01,835 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 127 [2022-04-18 15:49:01,837 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 107 transitions, 229 flow. Second operand has 6 states, 6 states have (on average 105.83333333333333) internal successors, (635), 6 states have internal predecessors, (635), 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) [2022-04-18 15:49:01,838 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 15:49:01,838 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 127 [2022-04-18 15:49:01,838 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 15:49:01,867 INFO L129 PetriNetUnfolder]: 2/169 cut-off events. [2022-04-18 15:49:01,867 INFO L130 PetriNetUnfolder]: For 2/14 co-relation queries the response was YES. [2022-04-18 15:49:01,867 INFO L84 FinitePrefix]: Finished finitePrefix Result has 214 conditions, 169 events. 2/169 cut-off events. For 2/14 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 301 event pairs, 2 based on Foata normal form. 0/165 useless extension candidates. Maximal degree in co-relation 154. Up to 15 conditions per place. [2022-04-18 15:49:01,868 INFO L132 encePairwiseOnDemand]: 122/127 looper letters, 0 selfloop transitions, 0 changer transitions 106/106 dead transitions. [2022-04-18 15:49:01,868 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 106 transitions, 261 flow [2022-04-18 15:49:01,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 15:49:01,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-04-18 15:49:01,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 636 transitions. [2022-04-18 15:49:01,869 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8346456692913385 [2022-04-18 15:49:01,869 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 636 transitions. [2022-04-18 15:49:01,869 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 636 transitions. [2022-04-18 15:49:01,869 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 15:49:01,870 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 636 transitions. [2022-04-18 15:49:01,871 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 106.0) internal successors, (636), 6 states have internal predecessors, (636), 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) [2022-04-18 15:49:01,872 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 127.0) internal successors, (889), 7 states have internal predecessors, (889), 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) [2022-04-18 15:49:01,873 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 127.0) internal successors, (889), 7 states have internal predecessors, (889), 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) [2022-04-18 15:49:01,873 INFO L186 Difference]: Start difference. First operand has 115 places, 107 transitions, 229 flow. Second operand 6 states and 636 transitions. [2022-04-18 15:49:01,873 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 106 transitions, 261 flow [2022-04-18 15:49:01,874 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 106 transitions, 257 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 15:49:01,874 INFO L242 Difference]: Finished difference. Result has 117 places, 0 transitions, 0 flow [2022-04-18 15:49:01,875 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=223, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=117, PETRI_TRANSITIONS=0} [2022-04-18 15:49:01,875 INFO L335 CegarLoopForPetriNet]: 121 programPoint places, -4 predicate places. [2022-04-18 15:49:01,875 INFO L478 AbstractCegarLoop]: Abstraction has has 117 places, 0 transitions, 0 flow [2022-04-18 15:49:01,875 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 105.83333333333333) internal successors, (635), 6 states have internal predecessors, (635), 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) [2022-04-18 15:49:01,878 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (13 of 14 remaining) [2022-04-18 15:49:01,878 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (12 of 14 remaining) [2022-04-18 15:49:01,878 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 14 remaining) [2022-04-18 15:49:01,879 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 14 remaining) [2022-04-18 15:49:01,879 INFO L788 garLoopResultBuilder]: Registering result SAFE for location f1Err0ASSERT_VIOLATIONDATA_RACE (9 of 14 remaining) [2022-04-18 15:49:01,879 INFO L788 garLoopResultBuilder]: Registering result SAFE for location f1Err1ASSERT_VIOLATIONDATA_RACE (8 of 14 remaining) [2022-04-18 15:49:01,879 INFO L788 garLoopResultBuilder]: Registering result SAFE for location f1Err2ASSERT_VIOLATIONDATA_RACE (7 of 14 remaining) [2022-04-18 15:49:01,879 INFO L788 garLoopResultBuilder]: Registering result SAFE for location f2Err0ASSERT_VIOLATIONDATA_RACE (6 of 14 remaining) [2022-04-18 15:49:01,879 INFO L788 garLoopResultBuilder]: Registering result SAFE for location f2Err1ASSERT_VIOLATIONDATA_RACE (5 of 14 remaining) [2022-04-18 15:49:01,879 INFO L788 garLoopResultBuilder]: Registering result SAFE for location f1Err0ASSERT_VIOLATIONDATA_RACE (4 of 14 remaining) [2022-04-18 15:49:01,879 INFO L788 garLoopResultBuilder]: Registering result SAFE for location f1Err1ASSERT_VIOLATIONDATA_RACE (3 of 14 remaining) [2022-04-18 15:49:01,879 INFO L788 garLoopResultBuilder]: Registering result SAFE for location f1Err2ASSERT_VIOLATIONDATA_RACE (2 of 14 remaining) [2022-04-18 15:49:01,880 INFO L788 garLoopResultBuilder]: Registering result SAFE for location f2Err0ASSERT_VIOLATIONDATA_RACE (1 of 14 remaining) [2022-04-18 15:49:01,880 INFO L788 garLoopResultBuilder]: Registering result SAFE for location f2Err1ASSERT_VIOLATIONDATA_RACE (0 of 14 remaining) [2022-04-18 15:49:01,880 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-04-18 15:49:01,884 INFO L719 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2022-04-18 15:49:01,887 INFO L227 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-04-18 15:49:01,887 INFO L177 ceAbstractionStarter]: Computing trace abstraction results [2022-04-18 15:49:01,892 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 03:49:01 BasicIcfg [2022-04-18 15:49:01,892 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-04-18 15:49:01,893 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-04-18 15:49:01,893 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-04-18 15:49:01,893 INFO L275 PluginConnector]: Witness Printer initialized [2022-04-18 15:49:01,893 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 03:49:00" (3/4) ... [2022-04-18 15:49:01,895 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-04-18 15:49:01,899 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure f1 [2022-04-18 15:49:01,899 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure f2 [2022-04-18 15:49:01,903 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2022-04-18 15:49:01,903 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-04-18 15:49:01,903 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-04-18 15:49:01,903 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-04-18 15:49:01,923 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-04-18 15:49:01,924 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-04-18 15:49:01,924 INFO L158 Benchmark]: Toolchain (without parser) took 2792.73ms. Allocated memory was 117.4MB in the beginning and 174.1MB in the end (delta: 56.6MB). Free memory was 85.1MB in the beginning and 116.8MB in the end (delta: -31.7MB). Peak memory consumption was 24.8MB. Max. memory is 16.1GB. [2022-04-18 15:49:01,924 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 117.4MB. Free memory was 70.8MB in the beginning and 70.7MB in the end (delta: 91.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-04-18 15:49:01,924 INFO L158 Benchmark]: CACSL2BoogieTranslator took 442.83ms. Allocated memory is still 117.4MB. Free memory was 85.0MB in the beginning and 63.1MB in the end (delta: 22.0MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-04-18 15:49:01,925 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.45ms. Allocated memory was 117.4MB in the beginning and 144.7MB in the end (delta: 27.3MB). Free memory was 63.1MB in the beginning and 118.3MB in the end (delta: -55.2MB). Peak memory consumption was 9.1MB. Max. memory is 16.1GB. [2022-04-18 15:49:01,925 INFO L158 Benchmark]: Boogie Preprocessor took 32.20ms. Allocated memory is still 144.7MB. Free memory was 118.2MB in the beginning and 117.9MB in the end (delta: 372.2kB). Peak memory consumption was 5.9MB. Max. memory is 16.1GB. [2022-04-18 15:49:01,925 INFO L158 Benchmark]: RCFGBuilder took 438.91ms. Allocated memory is still 144.7MB. Free memory was 117.9MB in the beginning and 99.0MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-04-18 15:49:01,925 INFO L158 Benchmark]: TraceAbstraction took 1792.39ms. Allocated memory was 144.7MB in the beginning and 174.1MB in the end (delta: 29.4MB). Free memory was 99.0MB in the beginning and 118.9MB in the end (delta: -20.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-04-18 15:49:01,925 INFO L158 Benchmark]: Witness Printer took 30.78ms. Allocated memory is still 174.1MB. Free memory was 118.9MB in the beginning and 116.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-04-18 15:49:01,927 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 117.4MB. Free memory was 70.8MB in the beginning and 70.7MB in the end (delta: 91.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 442.83ms. Allocated memory is still 117.4MB. Free memory was 85.0MB in the beginning and 63.1MB in the end (delta: 22.0MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.45ms. Allocated memory was 117.4MB in the beginning and 144.7MB in the end (delta: 27.3MB). Free memory was 63.1MB in the beginning and 118.3MB in the end (delta: -55.2MB). Peak memory consumption was 9.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.20ms. Allocated memory is still 144.7MB. Free memory was 118.2MB in the beginning and 117.9MB in the end (delta: 372.2kB). Peak memory consumption was 5.9MB. Max. memory is 16.1GB. * RCFGBuilder took 438.91ms. Allocated memory is still 144.7MB. Free memory was 117.9MB in the beginning and 99.0MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 1792.39ms. Allocated memory was 144.7MB in the beginning and 174.1MB in the end (delta: 29.4MB). Free memory was 99.0MB in the beginning and 118.9MB in the end (delta: -20.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Witness Printer took 30.78ms. Allocated memory is still 174.1MB. Free memory was 118.9MB in the beginning and 116.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 1378]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1379]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1356]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1358]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1359]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1365]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1366]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 179 locations, 14 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.7s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 41 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 41 mSDsluCounter, 87 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 19 mSDsCounter, 32 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 174 IncrementalHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 32 mSolverCounterUnsat, 87 mSDtfsCounter, 174 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=381occurred in iteration=4, InterpolantAutomatonStates: 27, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 422 NumberOfCodeBlocks, 422 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 415 ConstructedInterpolants, 0 QuantifiedInterpolants, 669 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 7 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-04-18 15:49:01,956 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE