./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_46-escape_racefree.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_46-escape_racefree.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 4b7c7619d813e48364b259b1a428c27bb8d838fdbf884f11806f1a0c23ff1cb9 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-31 20:56:13,286 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-31 20:56:13,288 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-31 20:56:13,312 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-31 20:56:13,312 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-31 20:56:13,313 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-31 20:56:13,314 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-31 20:56:13,315 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-31 20:56:13,317 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-31 20:56:13,318 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-31 20:56:13,318 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-31 20:56:13,321 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-31 20:56:13,322 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-31 20:56:13,326 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-31 20:56:13,327 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-31 20:56:13,329 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-31 20:56:13,330 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-31 20:56:13,331 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-31 20:56:13,333 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-31 20:56:13,335 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-31 20:56:13,345 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-31 20:56:13,346 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-31 20:56:13,347 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-31 20:56:13,347 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-31 20:56:13,350 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-31 20:56:13,350 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-31 20:56:13,350 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-31 20:56:13,351 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-31 20:56:13,351 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-31 20:56:13,357 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-31 20:56:13,358 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-31 20:56:13,359 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-31 20:56:13,361 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-31 20:56:13,361 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-31 20:56:13,362 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-31 20:56:13,362 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-31 20:56:13,363 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-31 20:56:13,363 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-31 20:56:13,363 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-31 20:56:13,364 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-31 20:56:13,364 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-31 20:56:13,366 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-31 20:56:13,402 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-31 20:56:13,403 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-31 20:56:13,404 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-31 20:56:13,404 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-31 20:56:13,405 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-31 20:56:13,405 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-31 20:56:13,405 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-31 20:56:13,405 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-31 20:56:13,406 INFO L138 SettingsManager]: * Use SBE=true [2023-08-31 20:56:13,406 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-31 20:56:13,406 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-31 20:56:13,407 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-31 20:56:13,407 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-31 20:56:13,407 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-31 20:56:13,407 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-31 20:56:13,407 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-31 20:56:13,407 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-31 20:56:13,408 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-31 20:56:13,408 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-31 20:56:13,408 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-31 20:56:13,408 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-31 20:56:13,408 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-31 20:56:13,409 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-31 20:56:13,409 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-31 20:56:13,409 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-31 20:56:13,409 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-31 20:56:13,409 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 20:56:13,409 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-31 20:56:13,410 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-31 20:56:13,410 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-31 20:56:13,410 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-31 20:56:13,410 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-31 20:56:13,410 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-31 20:56:13,411 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-31 20:56:13,411 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-31 20:56:13,411 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-31 20:56:13,411 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-31 20:56:13,411 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4b7c7619d813e48364b259b1a428c27bb8d838fdbf884f11806f1a0c23ff1cb9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-08-31 20:56:13,712 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-31 20:56:13,731 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-31 20:56:13,733 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-31 20:56:13,733 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-31 20:56:13,733 INFO L275 PluginConnector]: CDTParser initialized [2023-08-31 20:56:13,734 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_46-escape_racefree.i [2023-08-31 20:56:14,822 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-31 20:56:15,064 INFO L351 CDTParser]: Found 1 translation units. [2023-08-31 20:56:15,064 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_46-escape_racefree.i [2023-08-31 20:56:15,082 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/01d23e392/4bf873ba9e264d26a6fee9c94c5a41f5/FLAG875289768 [2023-08-31 20:56:15,092 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/01d23e392/4bf873ba9e264d26a6fee9c94c5a41f5 [2023-08-31 20:56:15,094 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-31 20:56:15,095 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-31 20:56:15,096 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-31 20:56:15,097 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-31 20:56:15,099 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-31 20:56:15,100 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 08:56:15" (1/1) ... [2023-08-31 20:56:15,101 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5327a9c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:56:15, skipping insertion in model container [2023-08-31 20:56:15,101 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 08:56:15" (1/1) ... [2023-08-31 20:56:15,107 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-31 20:56:15,152 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-31 20:56:15,448 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_46-escape_racefree.i[30176,30189] [2023-08-31 20:56:15,474 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 20:56:15,487 INFO L203 MainTranslator]: Completed pre-run [2023-08-31 20:56:15,522 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_46-escape_racefree.i[30176,30189] [2023-08-31 20:56:15,543 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 20:56:15,629 INFO L208 MainTranslator]: Completed translation [2023-08-31 20:56:15,640 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:56:15 WrapperNode [2023-08-31 20:56:15,640 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-31 20:56:15,641 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-31 20:56:15,642 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-31 20:56:15,642 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-31 20:56:15,647 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:56:15" (1/1) ... [2023-08-31 20:56:15,677 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:56:15" (1/1) ... [2023-08-31 20:56:15,705 INFO L138 Inliner]: procedures = 170, calls = 39, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 81 [2023-08-31 20:56:15,706 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-31 20:56:15,706 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-31 20:56:15,707 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-31 20:56:15,707 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-31 20:56:15,714 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:56:15" (1/1) ... [2023-08-31 20:56:15,715 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:56:15" (1/1) ... [2023-08-31 20:56:15,729 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:56:15" (1/1) ... [2023-08-31 20:56:15,730 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:56:15" (1/1) ... [2023-08-31 20:56:15,738 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:56:15" (1/1) ... [2023-08-31 20:56:15,750 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:56:15" (1/1) ... [2023-08-31 20:56:15,757 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:56:15" (1/1) ... [2023-08-31 20:56:15,761 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:56:15" (1/1) ... [2023-08-31 20:56:15,763 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-31 20:56:15,765 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-31 20:56:15,765 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-31 20:56:15,765 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-31 20:56:15,766 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:56:15" (1/1) ... [2023-08-31 20:56:15,771 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 20:56:15,781 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 20:56:15,794 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-31 20:56:15,802 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-31 20:56:15,829 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-31 20:56:15,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-31 20:56:15,830 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-31 20:56:15,830 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-31 20:56:15,830 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-31 20:56:15,830 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-31 20:56:15,831 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-31 20:56:15,831 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-31 20:56:15,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-31 20:56:15,831 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-31 20:56:15,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-31 20:56:15,832 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-31 20:56:15,986 INFO L236 CfgBuilder]: Building ICFG [2023-08-31 20:56:15,987 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-31 20:56:16,248 INFO L277 CfgBuilder]: Performing block encoding [2023-08-31 20:56:16,254 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-31 20:56:16,255 INFO L302 CfgBuilder]: Removed 8 assume(true) statements. [2023-08-31 20:56:16,256 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 08:56:16 BoogieIcfgContainer [2023-08-31 20:56:16,256 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-31 20:56:16,258 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-31 20:56:16,258 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-31 20:56:16,260 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-31 20:56:16,261 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.08 08:56:15" (1/3) ... [2023-08-31 20:56:16,261 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3538044f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 08:56:16, skipping insertion in model container [2023-08-31 20:56:16,261 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 08:56:15" (2/3) ... [2023-08-31 20:56:16,262 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3538044f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 08:56:16, skipping insertion in model container [2023-08-31 20:56:16,262 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 08:56:16" (3/3) ... [2023-08-31 20:56:16,263 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_46-escape_racefree.i [2023-08-31 20:56:16,269 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-31 20:56:16,276 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-31 20:56:16,277 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-08-31 20:56:16,277 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-31 20:56:16,374 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-31 20:56:16,411 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 138 places, 143 transitions, 294 flow [2023-08-31 20:56:16,490 INFO L130 PetriNetUnfolder]: 9/142 cut-off events. [2023-08-31 20:56:16,490 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-31 20:56:16,495 INFO L83 FinitePrefix]: Finished finitePrefix Result has 147 conditions, 142 events. 9/142 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 280 event pairs, 0 based on Foata normal form. 0/127 useless extension candidates. Maximal degree in co-relation 94. Up to 3 conditions per place. [2023-08-31 20:56:16,495 INFO L82 GeneralOperation]: Start removeDead. Operand has 138 places, 143 transitions, 294 flow [2023-08-31 20:56:16,499 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 128 places, 133 transitions, 269 flow [2023-08-31 20:56:16,502 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-31 20:56:16,508 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 128 places, 133 transitions, 269 flow [2023-08-31 20:56:16,510 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 128 places, 133 transitions, 269 flow [2023-08-31 20:56:16,511 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 128 places, 133 transitions, 269 flow [2023-08-31 20:56:16,534 INFO L130 PetriNetUnfolder]: 9/133 cut-off events. [2023-08-31 20:56:16,536 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 20:56:16,537 INFO L83 FinitePrefix]: Finished finitePrefix Result has 137 conditions, 133 events. 9/133 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 227 event pairs, 0 based on Foata normal form. 0/118 useless extension candidates. Maximal degree in co-relation 94. Up to 3 conditions per place. [2023-08-31 20:56:16,540 INFO L119 LiptonReduction]: Number of co-enabled transitions 4026 [2023-08-31 20:56:19,614 INFO L134 LiptonReduction]: Checked pairs total: 20613 [2023-08-31 20:56:19,614 INFO L136 LiptonReduction]: Total number of compositions: 83 [2023-08-31 20:56:19,626 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-31 20:56:19,630 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3d55614a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-31 20:56:19,630 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2023-08-31 20:56:19,637 INFO L130 PetriNetUnfolder]: 2/32 cut-off events. [2023-08-31 20:56:19,637 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 20:56:19,637 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:56:19,638 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:56:19,638 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2023-08-31 20:56:19,642 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:56:19,642 INFO L85 PathProgramCache]: Analyzing trace with hash 558302899, now seen corresponding path program 1 times [2023-08-31 20:56:19,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:56:19,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734951043] [2023-08-31 20:56:19,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:56:19,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:56:19,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:56:20,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:56:20,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:56:20,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734951043] [2023-08-31 20:56:20,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [734951043] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:56:20,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:56:20,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 20:56:20,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089439199] [2023-08-31 20:56:20,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:56:20,201 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 20:56:20,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:56:20,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 20:56:20,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 20:56:20,453 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 226 [2023-08-31 20:56:20,456 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 61 transitions, 125 flow. Second operand has 6 states, 6 states have (on average 109.5) internal successors, (657), 6 states have internal predecessors, (657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:56:20,457 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:56:20,457 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 226 [2023-08-31 20:56:20,457 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:56:20,575 INFO L130 PetriNetUnfolder]: 108/316 cut-off events. [2023-08-31 20:56:20,576 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 20:56:20,577 INFO L83 FinitePrefix]: Finished finitePrefix Result has 570 conditions, 316 events. 108/316 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1308 event pairs, 64 based on Foata normal form. 5/316 useless extension candidates. Maximal degree in co-relation 561. Up to 151 conditions per place. [2023-08-31 20:56:20,579 INFO L137 encePairwiseOnDemand]: 206/226 looper letters, 39 selfloop transitions, 10 changer transitions 0/67 dead transitions. [2023-08-31 20:56:20,579 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 67 transitions, 235 flow [2023-08-31 20:56:20,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 20:56:20,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 20:56:20,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 715 transitions. [2023-08-31 20:56:20,595 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5272861356932154 [2023-08-31 20:56:20,595 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 715 transitions. [2023-08-31 20:56:20,596 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 715 transitions. [2023-08-31 20:56:20,598 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:56:20,599 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 715 transitions. [2023-08-31 20:56:20,603 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 119.16666666666667) internal successors, (715), 6 states have internal predecessors, (715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:56:20,609 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 226.0) internal successors, (1582), 7 states have internal predecessors, (1582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:56:20,609 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 226.0) internal successors, (1582), 7 states have internal predecessors, (1582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:56:20,611 INFO L175 Difference]: Start difference. First operand has 57 places, 61 transitions, 125 flow. Second operand 6 states and 715 transitions. [2023-08-31 20:56:20,612 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 67 transitions, 235 flow [2023-08-31 20:56:20,614 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 67 transitions, 234 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-31 20:56:20,615 INFO L231 Difference]: Finished difference. Result has 59 places, 51 transitions, 124 flow [2023-08-31 20:56:20,617 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=226, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=124, PETRI_PLACES=59, PETRI_TRANSITIONS=51} [2023-08-31 20:56:20,619 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 2 predicate places. [2023-08-31 20:56:20,619 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 51 transitions, 124 flow [2023-08-31 20:56:20,620 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 109.5) internal successors, (657), 6 states have internal predecessors, (657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:56:20,620 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:56:20,620 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:56:20,621 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-31 20:56:20,621 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2023-08-31 20:56:20,621 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:56:20,621 INFO L85 PathProgramCache]: Analyzing trace with hash -1460847532, now seen corresponding path program 1 times [2023-08-31 20:56:20,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:56:20,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648614761] [2023-08-31 20:56:20,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:56:20,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:56:20,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:56:20,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:56:20,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:56:20,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648614761] [2023-08-31 20:56:20,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [648614761] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:56:20,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:56:20,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 20:56:20,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156228821] [2023-08-31 20:56:20,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:56:20,808 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 20:56:20,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:56:20,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 20:56:20,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 20:56:21,024 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 226 [2023-08-31 20:56:21,025 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 51 transitions, 124 flow. Second operand has 6 states, 6 states have (on average 115.5) internal successors, (693), 6 states have internal predecessors, (693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:56:21,025 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:56:21,026 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 226 [2023-08-31 20:56:21,026 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:56:21,305 INFO L130 PetriNetUnfolder]: 249/790 cut-off events. [2023-08-31 20:56:21,305 INFO L131 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2023-08-31 20:56:21,307 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1432 conditions, 790 events. 249/790 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 4192 event pairs, 48 based on Foata normal form. 0/751 useless extension candidates. Maximal degree in co-relation 1423. Up to 338 conditions per place. [2023-08-31 20:56:21,310 INFO L137 encePairwiseOnDemand]: 212/226 looper letters, 79 selfloop transitions, 37 changer transitions 0/136 dead transitions. [2023-08-31 20:56:21,310 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 136 transitions, 558 flow [2023-08-31 20:56:21,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 20:56:21,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 20:56:21,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 801 transitions. [2023-08-31 20:56:21,313 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5907079646017699 [2023-08-31 20:56:21,313 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 801 transitions. [2023-08-31 20:56:21,313 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 801 transitions. [2023-08-31 20:56:21,313 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:56:21,313 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 801 transitions. [2023-08-31 20:56:21,315 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 133.5) internal successors, (801), 6 states have internal predecessors, (801), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:56:21,318 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 226.0) internal successors, (1582), 7 states have internal predecessors, (1582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:56:21,319 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 226.0) internal successors, (1582), 7 states have internal predecessors, (1582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:56:21,319 INFO L175 Difference]: Start difference. First operand has 59 places, 51 transitions, 124 flow. Second operand 6 states and 801 transitions. [2023-08-31 20:56:21,319 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 136 transitions, 558 flow [2023-08-31 20:56:21,321 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 136 transitions, 506 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-31 20:56:21,322 INFO L231 Difference]: Finished difference. Result has 64 places, 87 transitions, 350 flow [2023-08-31 20:56:21,322 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=226, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=350, PETRI_PLACES=64, PETRI_TRANSITIONS=87} [2023-08-31 20:56:21,323 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 7 predicate places. [2023-08-31 20:56:21,323 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 87 transitions, 350 flow [2023-08-31 20:56:21,324 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 115.5) internal successors, (693), 6 states have internal predecessors, (693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:56:21,324 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:56:21,324 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:56:21,324 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-31 20:56:21,324 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2023-08-31 20:56:21,325 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:56:21,325 INFO L85 PathProgramCache]: Analyzing trace with hash 1511624828, now seen corresponding path program 1 times [2023-08-31 20:56:21,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:56:21,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577864590] [2023-08-31 20:56:21,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:56:21,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:56:21,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:56:21,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:56:21,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:56:21,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577864590] [2023-08-31 20:56:21,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577864590] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:56:21,536 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:56:21,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 20:56:21,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437356177] [2023-08-31 20:56:21,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:56:21,536 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 20:56:21,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:56:21,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 20:56:21,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 20:56:21,657 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 226 [2023-08-31 20:56:21,658 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 87 transitions, 350 flow. Second operand has 6 states, 6 states have (on average 101.33333333333333) internal successors, (608), 6 states have internal predecessors, (608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:56:21,658 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:56:21,658 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 226 [2023-08-31 20:56:21,658 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:56:21,896 INFO L130 PetriNetUnfolder]: 553/1306 cut-off events. [2023-08-31 20:56:21,897 INFO L131 PetriNetUnfolder]: For 517/532 co-relation queries the response was YES. [2023-08-31 20:56:21,899 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3183 conditions, 1306 events. 553/1306 cut-off events. For 517/532 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 6844 event pairs, 318 based on Foata normal form. 0/1252 useless extension candidates. Maximal degree in co-relation 3170. Up to 1106 conditions per place. [2023-08-31 20:56:21,903 INFO L137 encePairwiseOnDemand]: 212/226 looper letters, 89 selfloop transitions, 44 changer transitions 0/142 dead transitions. [2023-08-31 20:56:21,903 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 142 transitions, 800 flow [2023-08-31 20:56:21,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 20:56:21,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 20:56:21,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 689 transitions. [2023-08-31 20:56:21,905 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5081120943952803 [2023-08-31 20:56:21,905 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 689 transitions. [2023-08-31 20:56:21,906 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 689 transitions. [2023-08-31 20:56:21,906 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:56:21,906 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 689 transitions. [2023-08-31 20:56:21,908 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 114.83333333333333) internal successors, (689), 6 states have internal predecessors, (689), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:56:21,910 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 226.0) internal successors, (1582), 7 states have internal predecessors, (1582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:56:21,911 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 226.0) internal successors, (1582), 7 states have internal predecessors, (1582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:56:21,911 INFO L175 Difference]: Start difference. First operand has 64 places, 87 transitions, 350 flow. Second operand 6 states and 689 transitions. [2023-08-31 20:56:21,911 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 142 transitions, 800 flow [2023-08-31 20:56:21,918 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 142 transitions, 800 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 20:56:21,920 INFO L231 Difference]: Finished difference. Result has 73 places, 126 transitions, 656 flow [2023-08-31 20:56:21,920 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=226, PETRI_DIFFERENCE_MINUEND_FLOW=350, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=656, PETRI_PLACES=73, PETRI_TRANSITIONS=126} [2023-08-31 20:56:21,921 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 16 predicate places. [2023-08-31 20:56:21,922 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 126 transitions, 656 flow [2023-08-31 20:56:21,922 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 101.33333333333333) internal successors, (608), 6 states have internal predecessors, (608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:56:21,922 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:56:21,922 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:56:21,923 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-31 20:56:21,923 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2023-08-31 20:56:21,923 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:56:21,923 INFO L85 PathProgramCache]: Analyzing trace with hash 1147856007, now seen corresponding path program 1 times [2023-08-31 20:56:21,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:56:21,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529848921] [2023-08-31 20:56:21,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:56:21,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:56:21,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:56:22,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:56:22,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:56:22,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529848921] [2023-08-31 20:56:22,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1529848921] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:56:22,192 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:56:22,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 20:56:22,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569811133] [2023-08-31 20:56:22,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:56:22,193 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 20:56:22,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:56:22,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 20:56:22,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 20:56:22,386 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 226 [2023-08-31 20:56:22,387 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 126 transitions, 656 flow. Second operand has 6 states, 6 states have (on average 115.83333333333333) internal successors, (695), 6 states have internal predecessors, (695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:56:22,387 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:56:22,387 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 226 [2023-08-31 20:56:22,388 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:56:22,660 INFO L130 PetriNetUnfolder]: 463/1209 cut-off events. [2023-08-31 20:56:22,660 INFO L131 PetriNetUnfolder]: For 780/807 co-relation queries the response was YES. [2023-08-31 20:56:22,663 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3322 conditions, 1209 events. 463/1209 cut-off events. For 780/807 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 6806 event pairs, 92 based on Foata normal form. 2/1172 useless extension candidates. Maximal degree in co-relation 3304. Up to 651 conditions per place. [2023-08-31 20:56:22,668 INFO L137 encePairwiseOnDemand]: 212/226 looper letters, 120 selfloop transitions, 72 changer transitions 12/242 dead transitions. [2023-08-31 20:56:22,668 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 242 transitions, 1575 flow [2023-08-31 20:56:22,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 20:56:22,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 20:56:22,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 801 transitions. [2023-08-31 20:56:22,670 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5907079646017699 [2023-08-31 20:56:22,670 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 801 transitions. [2023-08-31 20:56:22,670 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 801 transitions. [2023-08-31 20:56:22,671 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:56:22,671 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 801 transitions. [2023-08-31 20:56:22,673 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 133.5) internal successors, (801), 6 states have internal predecessors, (801), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:56:22,675 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 226.0) internal successors, (1582), 7 states have internal predecessors, (1582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:56:22,675 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 226.0) internal successors, (1582), 7 states have internal predecessors, (1582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:56:22,675 INFO L175 Difference]: Start difference. First operand has 73 places, 126 transitions, 656 flow. Second operand 6 states and 801 transitions. [2023-08-31 20:56:22,676 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 242 transitions, 1575 flow [2023-08-31 20:56:22,681 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 242 transitions, 1551 flow, removed 12 selfloop flow, removed 0 redundant places. [2023-08-31 20:56:22,684 INFO L231 Difference]: Finished difference. Result has 83 places, 193 transitions, 1368 flow [2023-08-31 20:56:22,684 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=226, PETRI_DIFFERENCE_MINUEND_FLOW=632, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1368, PETRI_PLACES=83, PETRI_TRANSITIONS=193} [2023-08-31 20:56:22,685 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 26 predicate places. [2023-08-31 20:56:22,685 INFO L495 AbstractCegarLoop]: Abstraction has has 83 places, 193 transitions, 1368 flow [2023-08-31 20:56:22,685 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 115.83333333333333) internal successors, (695), 6 states have internal predecessors, (695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:56:22,686 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:56:22,686 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:56:22,686 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-31 20:56:22,686 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2023-08-31 20:56:22,686 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:56:22,686 INFO L85 PathProgramCache]: Analyzing trace with hash -1569691547, now seen corresponding path program 1 times [2023-08-31 20:56:22,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:56:22,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430418921] [2023-08-31 20:56:22,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:56:22,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:56:22,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:56:22,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:56:22,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:56:22,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430418921] [2023-08-31 20:56:22,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [430418921] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:56:22,748 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:56:22,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-31 20:56:22,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522722499] [2023-08-31 20:56:22,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:56:22,748 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 20:56:22,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:56:22,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 20:56:22,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 20:56:22,771 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 226 [2023-08-31 20:56:22,772 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 193 transitions, 1368 flow. Second operand has 3 states, 3 states have (on average 126.0) internal successors, (378), 3 states have internal predecessors, (378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:56:22,772 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:56:22,772 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 226 [2023-08-31 20:56:22,772 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:56:22,899 INFO L130 PetriNetUnfolder]: 255/865 cut-off events. [2023-08-31 20:56:22,900 INFO L131 PetriNetUnfolder]: For 1001/1032 co-relation queries the response was YES. [2023-08-31 20:56:22,902 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2669 conditions, 865 events. 255/865 cut-off events. For 1001/1032 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 5224 event pairs, 25 based on Foata normal form. 9/864 useless extension candidates. Maximal degree in co-relation 2646. Up to 228 conditions per place. [2023-08-31 20:56:22,906 INFO L137 encePairwiseOnDemand]: 219/226 looper letters, 53 selfloop transitions, 6 changer transitions 5/171 dead transitions. [2023-08-31 20:56:22,906 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 171 transitions, 1237 flow [2023-08-31 20:56:22,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 20:56:22,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 20:56:22,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 409 transitions. [2023-08-31 20:56:22,907 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6032448377581121 [2023-08-31 20:56:22,907 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 409 transitions. [2023-08-31 20:56:22,908 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 409 transitions. [2023-08-31 20:56:22,908 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:56:22,908 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 409 transitions. [2023-08-31 20:56:22,909 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 136.33333333333334) internal successors, (409), 3 states have internal predecessors, (409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:56:22,910 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 226.0) internal successors, (904), 4 states have internal predecessors, (904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:56:22,910 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 226.0) internal successors, (904), 4 states have internal predecessors, (904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:56:22,910 INFO L175 Difference]: Start difference. First operand has 83 places, 193 transitions, 1368 flow. Second operand 3 states and 409 transitions. [2023-08-31 20:56:22,910 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 171 transitions, 1237 flow [2023-08-31 20:56:22,917 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 171 transitions, 1163 flow, removed 37 selfloop flow, removed 0 redundant places. [2023-08-31 20:56:22,920 INFO L231 Difference]: Finished difference. Result has 86 places, 150 transitions, 945 flow [2023-08-31 20:56:22,920 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=226, PETRI_DIFFERENCE_MINUEND_FLOW=913, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=147, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=141, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=945, PETRI_PLACES=86, PETRI_TRANSITIONS=150} [2023-08-31 20:56:22,921 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 29 predicate places. [2023-08-31 20:56:22,921 INFO L495 AbstractCegarLoop]: Abstraction has has 86 places, 150 transitions, 945 flow [2023-08-31 20:56:22,921 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 126.0) internal successors, (378), 3 states have internal predecessors, (378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:56:22,921 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:56:22,921 INFO L208 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] [2023-08-31 20:56:22,921 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-31 20:56:22,921 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2023-08-31 20:56:22,922 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:56:22,922 INFO L85 PathProgramCache]: Analyzing trace with hash -349093614, now seen corresponding path program 1 times [2023-08-31 20:56:22,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:56:22,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26108333] [2023-08-31 20:56:22,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:56:22,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:56:22,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:56:23,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:56:23,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:56:23,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26108333] [2023-08-31 20:56:23,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [26108333] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:56:23,373 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:56:23,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-31 20:56:23,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670106908] [2023-08-31 20:56:23,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:56:23,378 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-31 20:56:23,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:56:23,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-31 20:56:23,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-08-31 20:56:23,820 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 226 [2023-08-31 20:56:23,821 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 150 transitions, 945 flow. Second operand has 11 states, 11 states have (on average 96.0909090909091) internal successors, (1057), 11 states have internal predecessors, (1057), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:56:23,821 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:56:23,821 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 226 [2023-08-31 20:56:23,821 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:56:24,126 INFO L130 PetriNetUnfolder]: 489/1252 cut-off events. [2023-08-31 20:56:24,127 INFO L131 PetriNetUnfolder]: For 1355/1357 co-relation queries the response was YES. [2023-08-31 20:56:24,130 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4260 conditions, 1252 events. 489/1252 cut-off events. For 1355/1357 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 7175 event pairs, 229 based on Foata normal form. 0/1246 useless extension candidates. Maximal degree in co-relation 4235. Up to 891 conditions per place. [2023-08-31 20:56:24,135 INFO L137 encePairwiseOnDemand]: 217/226 looper letters, 141 selfloop transitions, 32 changer transitions 0/184 dead transitions. [2023-08-31 20:56:24,135 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 184 transitions, 1491 flow [2023-08-31 20:56:24,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-31 20:56:24,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-31 20:56:24,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 916 transitions. [2023-08-31 20:56:24,138 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4503441494591937 [2023-08-31 20:56:24,138 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 916 transitions. [2023-08-31 20:56:24,138 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 916 transitions. [2023-08-31 20:56:24,139 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:56:24,139 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 916 transitions. [2023-08-31 20:56:24,140 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 101.77777777777777) internal successors, (916), 9 states have internal predecessors, (916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:56:24,143 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 226.0) internal successors, (2260), 10 states have internal predecessors, (2260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:56:24,144 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 226.0) internal successors, (2260), 10 states have internal predecessors, (2260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:56:24,144 INFO L175 Difference]: Start difference. First operand has 86 places, 150 transitions, 945 flow. Second operand 9 states and 916 transitions. [2023-08-31 20:56:24,144 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 184 transitions, 1491 flow [2023-08-31 20:56:24,153 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 184 transitions, 1483 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-31 20:56:24,155 INFO L231 Difference]: Finished difference. Result has 92 places, 149 transitions, 999 flow [2023-08-31 20:56:24,156 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=226, PETRI_DIFFERENCE_MINUEND_FLOW=935, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=149, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=999, PETRI_PLACES=92, PETRI_TRANSITIONS=149} [2023-08-31 20:56:24,156 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 35 predicate places. [2023-08-31 20:56:24,157 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 149 transitions, 999 flow [2023-08-31 20:56:24,157 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 96.0909090909091) internal successors, (1057), 11 states have internal predecessors, (1057), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:56:24,157 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:56:24,157 INFO L208 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] [2023-08-31 20:56:24,158 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-31 20:56:24,158 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2023-08-31 20:56:24,158 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:56:24,158 INFO L85 PathProgramCache]: Analyzing trace with hash -1876697562, now seen corresponding path program 1 times [2023-08-31 20:56:24,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:56:24,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505311407] [2023-08-31 20:56:24,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:56:24,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:56:24,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:56:24,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:56:24,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:56:24,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505311407] [2023-08-31 20:56:24,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [505311407] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:56:24,531 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:56:24,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-31 20:56:24,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626663770] [2023-08-31 20:56:24,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:56:24,531 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-31 20:56:24,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:56:24,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-31 20:56:24,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-08-31 20:56:24,942 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 226 [2023-08-31 20:56:24,943 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 149 transitions, 999 flow. Second operand has 11 states, 11 states have (on average 112.45454545454545) internal successors, (1237), 11 states have internal predecessors, (1237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:56:24,944 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:56:24,944 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 226 [2023-08-31 20:56:24,944 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:56:25,389 INFO L130 PetriNetUnfolder]: 490/1281 cut-off events. [2023-08-31 20:56:25,390 INFO L131 PetriNetUnfolder]: For 1553/1555 co-relation queries the response was YES. [2023-08-31 20:56:25,393 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4530 conditions, 1281 events. 490/1281 cut-off events. For 1553/1555 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 7571 event pairs, 50 based on Foata normal form. 29/1300 useless extension candidates. Maximal degree in co-relation 4503. Up to 400 conditions per place. [2023-08-31 20:56:25,398 INFO L137 encePairwiseOnDemand]: 217/226 looper letters, 210 selfloop transitions, 30 changer transitions 12/274 dead transitions. [2023-08-31 20:56:25,398 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 274 transitions, 2195 flow [2023-08-31 20:56:25,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-31 20:56:25,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-31 20:56:25,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1233 transitions. [2023-08-31 20:56:25,401 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5455752212389381 [2023-08-31 20:56:25,401 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1233 transitions. [2023-08-31 20:56:25,401 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1233 transitions. [2023-08-31 20:56:25,402 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:56:25,402 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1233 transitions. [2023-08-31 20:56:25,405 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 123.3) internal successors, (1233), 10 states have internal predecessors, (1233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:56:25,407 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 226.0) internal successors, (2486), 11 states have internal predecessors, (2486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:56:25,408 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 226.0) internal successors, (2486), 11 states have internal predecessors, (2486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:56:25,408 INFO L175 Difference]: Start difference. First operand has 92 places, 149 transitions, 999 flow. Second operand 10 states and 1233 transitions. [2023-08-31 20:56:25,408 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 274 transitions, 2195 flow [2023-08-31 20:56:25,417 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 274 transitions, 2059 flow, removed 0 selfloop flow, removed 8 redundant places. [2023-08-31 20:56:25,420 INFO L231 Difference]: Finished difference. Result has 98 places, 172 transitions, 1213 flow [2023-08-31 20:56:25,420 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=226, PETRI_DIFFERENCE_MINUEND_FLOW=935, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=149, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=121, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1213, PETRI_PLACES=98, PETRI_TRANSITIONS=172} [2023-08-31 20:56:25,421 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 41 predicate places. [2023-08-31 20:56:25,421 INFO L495 AbstractCegarLoop]: Abstraction has has 98 places, 172 transitions, 1213 flow [2023-08-31 20:56:25,422 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 112.45454545454545) internal successors, (1237), 11 states have internal predecessors, (1237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:56:25,422 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:56:25,422 INFO L208 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] [2023-08-31 20:56:25,422 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-31 20:56:25,422 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2023-08-31 20:56:25,423 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:56:25,423 INFO L85 PathProgramCache]: Analyzing trace with hash -293553252, now seen corresponding path program 2 times [2023-08-31 20:56:25,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:56:25,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748438439] [2023-08-31 20:56:25,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:56:25,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:56:25,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:56:25,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:56:25,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:56:25,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748438439] [2023-08-31 20:56:25,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1748438439] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:56:25,818 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:56:25,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-31 20:56:25,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781419102] [2023-08-31 20:56:25,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:56:25,819 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-31 20:56:25,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:56:25,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-31 20:56:25,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2023-08-31 20:56:26,317 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 226 [2023-08-31 20:56:26,318 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 172 transitions, 1213 flow. Second operand has 11 states, 11 states have (on average 112.45454545454545) internal successors, (1237), 11 states have internal predecessors, (1237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:56:26,318 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:56:26,318 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 226 [2023-08-31 20:56:26,318 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:56:26,901 INFO L130 PetriNetUnfolder]: 507/1353 cut-off events. [2023-08-31 20:56:26,902 INFO L131 PetriNetUnfolder]: For 2663/2674 co-relation queries the response was YES. [2023-08-31 20:56:26,906 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5323 conditions, 1353 events. 507/1353 cut-off events. For 2663/2674 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 8298 event pairs, 63 based on Foata normal form. 17/1355 useless extension candidates. Maximal degree in co-relation 5291. Up to 684 conditions per place. [2023-08-31 20:56:26,911 INFO L137 encePairwiseOnDemand]: 209/226 looper letters, 147 selfloop transitions, 69 changer transitions 15/253 dead transitions. [2023-08-31 20:56:26,911 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 253 transitions, 2016 flow [2023-08-31 20:56:26,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-31 20:56:26,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-31 20:56:26,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1136 transitions. [2023-08-31 20:56:26,915 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5585054080629301 [2023-08-31 20:56:26,915 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1136 transitions. [2023-08-31 20:56:26,915 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1136 transitions. [2023-08-31 20:56:26,916 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:56:26,916 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1136 transitions. [2023-08-31 20:56:26,918 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 126.22222222222223) internal successors, (1136), 9 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:56:26,921 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 226.0) internal successors, (2260), 10 states have internal predecessors, (2260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:56:26,921 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 226.0) internal successors, (2260), 10 states have internal predecessors, (2260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:56:26,921 INFO L175 Difference]: Start difference. First operand has 98 places, 172 transitions, 1213 flow. Second operand 9 states and 1136 transitions. [2023-08-31 20:56:26,921 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 253 transitions, 2016 flow [2023-08-31 20:56:26,937 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 253 transitions, 2006 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-31 20:56:26,942 INFO L231 Difference]: Finished difference. Result has 106 places, 182 transitions, 1541 flow [2023-08-31 20:56:26,942 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=226, PETRI_DIFFERENCE_MINUEND_FLOW=1207, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=172, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=59, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1541, PETRI_PLACES=106, PETRI_TRANSITIONS=182} [2023-08-31 20:56:26,945 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 49 predicate places. [2023-08-31 20:56:26,945 INFO L495 AbstractCegarLoop]: Abstraction has has 106 places, 182 transitions, 1541 flow [2023-08-31 20:56:26,946 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 112.45454545454545) internal successors, (1237), 11 states have internal predecessors, (1237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:56:26,946 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:56:26,946 INFO L208 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] [2023-08-31 20:56:26,946 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-31 20:56:26,946 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2023-08-31 20:56:26,950 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:56:26,950 INFO L85 PathProgramCache]: Analyzing trace with hash 1478916454, now seen corresponding path program 3 times [2023-08-31 20:56:26,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:56:26,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329606846] [2023-08-31 20:56:26,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:56:26,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:56:26,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:56:27,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:56:27,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:56:27,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329606846] [2023-08-31 20:56:27,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1329606846] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:56:27,322 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:56:27,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-31 20:56:27,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123530904] [2023-08-31 20:56:27,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:56:27,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-31 20:56:27,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:56:27,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-31 20:56:27,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-08-31 20:56:27,901 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 226 [2023-08-31 20:56:27,903 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 182 transitions, 1541 flow. Second operand has 11 states, 11 states have (on average 112.45454545454545) internal successors, (1237), 11 states have internal predecessors, (1237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:56:27,903 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:56:27,903 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 226 [2023-08-31 20:56:27,903 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:56:28,517 INFO L130 PetriNetUnfolder]: 570/1553 cut-off events. [2023-08-31 20:56:28,517 INFO L131 PetriNetUnfolder]: For 4596/4607 co-relation queries the response was YES. [2023-08-31 20:56:28,523 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6663 conditions, 1553 events. 570/1553 cut-off events. For 4596/4607 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 9981 event pairs, 58 based on Foata normal form. 21/1557 useless extension candidates. Maximal degree in co-relation 6628. Up to 513 conditions per place. [2023-08-31 20:56:28,530 INFO L137 encePairwiseOnDemand]: 209/226 looper letters, 207 selfloop transitions, 98 changer transitions 16/343 dead transitions. [2023-08-31 20:56:28,530 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 343 transitions, 3226 flow [2023-08-31 20:56:28,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-31 20:56:28,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-31 20:56:28,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1270 transitions. [2023-08-31 20:56:28,533 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5619469026548672 [2023-08-31 20:56:28,533 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1270 transitions. [2023-08-31 20:56:28,534 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1270 transitions. [2023-08-31 20:56:28,534 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:56:28,534 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1270 transitions. [2023-08-31 20:56:28,537 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 127.0) internal successors, (1270), 10 states have internal predecessors, (1270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:56:28,540 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 226.0) internal successors, (2486), 11 states have internal predecessors, (2486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:56:28,540 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 226.0) internal successors, (2486), 11 states have internal predecessors, (2486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:56:28,541 INFO L175 Difference]: Start difference. First operand has 106 places, 182 transitions, 1541 flow. Second operand 10 states and 1270 transitions. [2023-08-31 20:56:28,541 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 343 transitions, 3226 flow [2023-08-31 20:56:28,564 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 343 transitions, 3158 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-31 20:56:28,569 INFO L231 Difference]: Finished difference. Result has 116 places, 224 transitions, 2341 flow [2023-08-31 20:56:28,569 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=226, PETRI_DIFFERENCE_MINUEND_FLOW=1486, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=182, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=63, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=2341, PETRI_PLACES=116, PETRI_TRANSITIONS=224} [2023-08-31 20:56:28,570 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 59 predicate places. [2023-08-31 20:56:28,570 INFO L495 AbstractCegarLoop]: Abstraction has has 116 places, 224 transitions, 2341 flow [2023-08-31 20:56:28,573 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 112.45454545454545) internal successors, (1237), 11 states have internal predecessors, (1237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:56:28,574 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:56:28,574 INFO L208 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] [2023-08-31 20:56:28,574 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-31 20:56:28,574 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2023-08-31 20:56:28,574 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:56:28,575 INFO L85 PathProgramCache]: Analyzing trace with hash 567089318, now seen corresponding path program 4 times [2023-08-31 20:56:28,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:56:28,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373578801] [2023-08-31 20:56:28,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:56:28,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:56:28,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:56:28,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:56:28,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:56:28,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373578801] [2023-08-31 20:56:28,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1373578801] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:56:28,949 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:56:28,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-31 20:56:28,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486840467] [2023-08-31 20:56:28,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:56:28,950 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-31 20:56:28,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:56:28,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-31 20:56:28,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-08-31 20:56:29,473 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 226 [2023-08-31 20:56:29,474 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 224 transitions, 2341 flow. Second operand has 11 states, 11 states have (on average 112.45454545454545) internal successors, (1237), 11 states have internal predecessors, (1237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:56:29,474 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:56:29,474 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 226 [2023-08-31 20:56:29,474 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:56:30,170 INFO L130 PetriNetUnfolder]: 610/1703 cut-off events. [2023-08-31 20:56:30,170 INFO L131 PetriNetUnfolder]: For 8237/8250 co-relation queries the response was YES. [2023-08-31 20:56:30,177 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7921 conditions, 1703 events. 610/1703 cut-off events. For 8237/8250 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 11397 event pairs, 71 based on Foata normal form. 21/1708 useless extension candidates. Maximal degree in co-relation 7879. Up to 805 conditions per place. [2023-08-31 20:56:30,184 INFO L137 encePairwiseOnDemand]: 209/226 looper letters, 189 selfloop transitions, 106 changer transitions 18/335 dead transitions. [2023-08-31 20:56:30,184 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 335 transitions, 3584 flow [2023-08-31 20:56:30,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-31 20:56:30,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-31 20:56:30,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1267 transitions. [2023-08-31 20:56:30,188 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5606194690265487 [2023-08-31 20:56:30,188 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1267 transitions. [2023-08-31 20:56:30,188 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1267 transitions. [2023-08-31 20:56:30,189 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:56:30,189 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1267 transitions. [2023-08-31 20:56:30,191 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 126.7) internal successors, (1267), 10 states have internal predecessors, (1267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:56:30,194 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 226.0) internal successors, (2486), 11 states have internal predecessors, (2486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:56:30,194 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 226.0) internal successors, (2486), 11 states have internal predecessors, (2486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:56:30,194 INFO L175 Difference]: Start difference. First operand has 116 places, 224 transitions, 2341 flow. Second operand 10 states and 1267 transitions. [2023-08-31 20:56:30,195 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 335 transitions, 3584 flow [2023-08-31 20:56:30,234 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 335 transitions, 3535 flow, removed 23 selfloop flow, removed 2 redundant places. [2023-08-31 20:56:30,238 INFO L231 Difference]: Finished difference. Result has 128 places, 244 transitions, 2984 flow [2023-08-31 20:56:30,239 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=226, PETRI_DIFFERENCE_MINUEND_FLOW=2292, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=224, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=86, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=2984, PETRI_PLACES=128, PETRI_TRANSITIONS=244} [2023-08-31 20:56:30,239 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 71 predicate places. [2023-08-31 20:56:30,239 INFO L495 AbstractCegarLoop]: Abstraction has has 128 places, 244 transitions, 2984 flow [2023-08-31 20:56:30,240 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 112.45454545454545) internal successors, (1237), 11 states have internal predecessors, (1237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:56:30,240 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:56:30,240 INFO L208 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] [2023-08-31 20:56:30,240 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-31 20:56:30,241 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2023-08-31 20:56:30,241 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:56:30,241 INFO L85 PathProgramCache]: Analyzing trace with hash -452149796, now seen corresponding path program 5 times [2023-08-31 20:56:30,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:56:30,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128626921] [2023-08-31 20:56:30,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:56:30,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:56:30,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:56:30,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:56:30,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:56:30,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128626921] [2023-08-31 20:56:30,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [128626921] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:56:30,582 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:56:30,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-31 20:56:30,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767424460] [2023-08-31 20:56:30,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:56:30,583 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-31 20:56:30,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:56:30,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-31 20:56:30,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-08-31 20:56:31,083 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 226 [2023-08-31 20:56:31,084 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 244 transitions, 2984 flow. Second operand has 11 states, 11 states have (on average 112.45454545454545) internal successors, (1237), 11 states have internal predecessors, (1237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:56:31,084 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:56:31,084 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 226 [2023-08-31 20:56:31,084 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:56:31,821 INFO L130 PetriNetUnfolder]: 589/1708 cut-off events. [2023-08-31 20:56:31,821 INFO L131 PetriNetUnfolder]: For 10732/10745 co-relation queries the response was YES. [2023-08-31 20:56:31,828 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8523 conditions, 1708 events. 589/1708 cut-off events. For 10732/10745 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 11759 event pairs, 52 based on Foata normal form. 21/1714 useless extension candidates. Maximal degree in co-relation 8475. Up to 674 conditions per place. [2023-08-31 20:56:31,842 INFO L137 encePairwiseOnDemand]: 209/226 looper letters, 212 selfloop transitions, 113 changer transitions 19/366 dead transitions. [2023-08-31 20:56:31,842 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 366 transitions, 4440 flow [2023-08-31 20:56:31,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-31 20:56:31,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-31 20:56:31,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1268 transitions. [2023-08-31 20:56:31,846 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5610619469026549 [2023-08-31 20:56:31,846 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1268 transitions. [2023-08-31 20:56:31,846 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1268 transitions. [2023-08-31 20:56:31,847 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:56:31,847 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1268 transitions. [2023-08-31 20:56:31,849 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 126.8) internal successors, (1268), 10 states have internal predecessors, (1268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:56:31,852 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 226.0) internal successors, (2486), 11 states have internal predecessors, (2486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:56:31,852 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 226.0) internal successors, (2486), 11 states have internal predecessors, (2486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:56:31,852 INFO L175 Difference]: Start difference. First operand has 128 places, 244 transitions, 2984 flow. Second operand 10 states and 1268 transitions. [2023-08-31 20:56:31,853 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 366 transitions, 4440 flow [2023-08-31 20:56:31,904 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 366 transitions, 4322 flow, removed 18 selfloop flow, removed 8 redundant places. [2023-08-31 20:56:31,909 INFO L231 Difference]: Finished difference. Result has 132 places, 260 transitions, 3548 flow [2023-08-31 20:56:31,909 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=226, PETRI_DIFFERENCE_MINUEND_FLOW=2860, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=243, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=96, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=131, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=3548, PETRI_PLACES=132, PETRI_TRANSITIONS=260} [2023-08-31 20:56:31,911 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 75 predicate places. [2023-08-31 20:56:31,911 INFO L495 AbstractCegarLoop]: Abstraction has has 132 places, 260 transitions, 3548 flow [2023-08-31 20:56:31,912 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 112.45454545454545) internal successors, (1237), 11 states have internal predecessors, (1237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:56:31,912 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:56:31,912 INFO L208 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] [2023-08-31 20:56:31,912 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-31 20:56:31,912 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2023-08-31 20:56:31,913 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:56:31,913 INFO L85 PathProgramCache]: Analyzing trace with hash 116628082, now seen corresponding path program 1 times [2023-08-31 20:56:31,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:56:31,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976831182] [2023-08-31 20:56:31,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:56:31,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:56:31,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:56:32,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:56:32,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:56:32,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976831182] [2023-08-31 20:56:32,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [976831182] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:56:32,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:56:32,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 20:56:32,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354154591] [2023-08-31 20:56:32,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:56:32,122 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 20:56:32,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:56:32,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 20:56:32,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 20:56:32,237 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 226 [2023-08-31 20:56:32,238 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 260 transitions, 3548 flow. Second operand has 6 states, 6 states have (on average 103.5) internal successors, (621), 6 states have internal predecessors, (621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:56:32,238 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:56:32,238 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 226 [2023-08-31 20:56:32,238 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:56:32,618 INFO L130 PetriNetUnfolder]: 736/2000 cut-off events. [2023-08-31 20:56:32,619 INFO L131 PetriNetUnfolder]: For 13697/13720 co-relation queries the response was YES. [2023-08-31 20:56:32,627 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10522 conditions, 2000 events. 736/2000 cut-off events. For 13697/13720 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 13574 event pairs, 225 based on Foata normal form. 7/1966 useless extension candidates. Maximal degree in co-relation 10473. Up to 1566 conditions per place. [2023-08-31 20:56:32,632 INFO L137 encePairwiseOnDemand]: 211/226 looper letters, 177 selfloop transitions, 75 changer transitions 95/359 dead transitions. [2023-08-31 20:56:32,632 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 359 transitions, 5183 flow [2023-08-31 20:56:32,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 20:56:32,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 20:56:32,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 690 transitions. [2023-08-31 20:56:32,635 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5088495575221239 [2023-08-31 20:56:32,635 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 690 transitions. [2023-08-31 20:56:32,635 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 690 transitions. [2023-08-31 20:56:32,636 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:56:32,636 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 690 transitions. [2023-08-31 20:56:32,637 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 115.0) internal successors, (690), 6 states have internal predecessors, (690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:56:32,639 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 226.0) internal successors, (1582), 7 states have internal predecessors, (1582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:56:32,640 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 226.0) internal successors, (1582), 7 states have internal predecessors, (1582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:56:32,640 INFO L175 Difference]: Start difference. First operand has 132 places, 260 transitions, 3548 flow. Second operand 6 states and 690 transitions. [2023-08-31 20:56:32,640 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 359 transitions, 5183 flow [2023-08-31 20:56:32,705 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 359 transitions, 4960 flow, removed 54 selfloop flow, removed 5 redundant places. [2023-08-31 20:56:32,710 INFO L231 Difference]: Finished difference. Result has 137 places, 248 transitions, 3081 flow [2023-08-31 20:56:32,710 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=226, PETRI_DIFFERENCE_MINUEND_FLOW=3404, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=260, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=227, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3081, PETRI_PLACES=137, PETRI_TRANSITIONS=248} [2023-08-31 20:56:32,711 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 80 predicate places. [2023-08-31 20:56:32,711 INFO L495 AbstractCegarLoop]: Abstraction has has 137 places, 248 transitions, 3081 flow [2023-08-31 20:56:32,723 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 103.5) internal successors, (621), 6 states have internal predecessors, (621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:56:32,723 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:56:32,723 INFO L208 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] [2023-08-31 20:56:32,723 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-31 20:56:32,723 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2023-08-31 20:56:32,724 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:56:32,724 INFO L85 PathProgramCache]: Analyzing trace with hash 1129733204, now seen corresponding path program 1 times [2023-08-31 20:56:32,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:56:32,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072844007] [2023-08-31 20:56:32,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:56:32,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:56:32,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:56:32,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:56:32,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:56:32,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072844007] [2023-08-31 20:56:32,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1072844007] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:56:32,794 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:56:32,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-31 20:56:32,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643127571] [2023-08-31 20:56:32,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:56:32,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 20:56:32,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:56:32,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 20:56:32,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 20:56:32,812 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 122 out of 226 [2023-08-31 20:56:32,813 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 248 transitions, 3081 flow. Second operand has 3 states, 3 states have (on average 127.0) internal successors, (381), 3 states have internal predecessors, (381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:56:32,813 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:56:32,813 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 122 of 226 [2023-08-31 20:56:32,813 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:56:32,981 INFO L130 PetriNetUnfolder]: 289/1154 cut-off events. [2023-08-31 20:56:32,981 INFO L131 PetriNetUnfolder]: For 9561/9623 co-relation queries the response was YES. [2023-08-31 20:56:32,986 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6231 conditions, 1154 events. 289/1154 cut-off events. For 9561/9623 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 8052 event pairs, 7 based on Foata normal form. 23/1174 useless extension candidates. Maximal degree in co-relation 6180. Up to 258 conditions per place. [2023-08-31 20:56:32,989 INFO L137 encePairwiseOnDemand]: 218/226 looper letters, 56 selfloop transitions, 8 changer transitions 7/219 dead transitions. [2023-08-31 20:56:32,990 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 219 transitions, 2868 flow [2023-08-31 20:56:32,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 20:56:32,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 20:56:32,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 402 transitions. [2023-08-31 20:56:32,991 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5929203539823009 [2023-08-31 20:56:32,992 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 402 transitions. [2023-08-31 20:56:32,992 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 402 transitions. [2023-08-31 20:56:32,992 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:56:32,992 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 402 transitions. [2023-08-31 20:56:32,993 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 134.0) internal successors, (402), 3 states have internal predecessors, (402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:56:32,994 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 226.0) internal successors, (904), 4 states have internal predecessors, (904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:56:32,994 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 226.0) internal successors, (904), 4 states have internal predecessors, (904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:56:32,994 INFO L175 Difference]: Start difference. First operand has 137 places, 248 transitions, 3081 flow. Second operand 3 states and 402 transitions. [2023-08-31 20:56:32,994 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 219 transitions, 2868 flow [2023-08-31 20:56:33,041 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 219 transitions, 2401 flow, removed 109 selfloop flow, removed 14 redundant places. [2023-08-31 20:56:33,044 INFO L231 Difference]: Finished difference. Result has 123 places, 193 transitions, 2026 flow [2023-08-31 20:56:33,044 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=226, PETRI_DIFFERENCE_MINUEND_FLOW=1998, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=193, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=185, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2026, PETRI_PLACES=123, PETRI_TRANSITIONS=193} [2023-08-31 20:56:33,045 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 66 predicate places. [2023-08-31 20:56:33,046 INFO L495 AbstractCegarLoop]: Abstraction has has 123 places, 193 transitions, 2026 flow [2023-08-31 20:56:33,046 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 127.0) internal successors, (381), 3 states have internal predecessors, (381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:56:33,046 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 20:56:33,046 INFO L208 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] [2023-08-31 20:56:33,046 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-31 20:56:33,046 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2023-08-31 20:56:33,047 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 20:56:33,047 INFO L85 PathProgramCache]: Analyzing trace with hash 1225088014, now seen corresponding path program 1 times [2023-08-31 20:56:33,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 20:56:33,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426174655] [2023-08-31 20:56:33,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 20:56:33,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 20:56:33,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 20:56:33,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 20:56:33,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 20:56:33,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426174655] [2023-08-31 20:56:33,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [426174655] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 20:56:33,394 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 20:56:33,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-31 20:56:33,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924450314] [2023-08-31 20:56:33,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 20:56:33,395 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-31 20:56:33,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 20:56:33,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-31 20:56:33,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-08-31 20:56:33,792 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 226 [2023-08-31 20:56:33,793 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 193 transitions, 2026 flow. Second operand has 10 states, 10 states have (on average 97.6) internal successors, (976), 10 states have internal predecessors, (976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:56:33,793 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 20:56:33,793 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 226 [2023-08-31 20:56:33,793 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 20:56:34,171 INFO L130 PetriNetUnfolder]: 559/1566 cut-off events. [2023-08-31 20:56:34,171 INFO L131 PetriNetUnfolder]: For 12816/12821 co-relation queries the response was YES. [2023-08-31 20:56:34,177 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8411 conditions, 1566 events. 559/1566 cut-off events. For 12816/12821 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 10068 event pairs, 226 based on Foata normal form. 30/1592 useless extension candidates. Maximal degree in co-relation 8367. Up to 1055 conditions per place. [2023-08-31 20:56:34,179 INFO L137 encePairwiseOnDemand]: 218/226 looper letters, 0 selfloop transitions, 0 changer transitions 239/239 dead transitions. [2023-08-31 20:56:34,179 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 239 transitions, 2903 flow [2023-08-31 20:56:34,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-31 20:56:34,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-31 20:56:34,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 917 transitions. [2023-08-31 20:56:34,181 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45083579154375614 [2023-08-31 20:56:34,182 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 917 transitions. [2023-08-31 20:56:34,182 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 917 transitions. [2023-08-31 20:56:34,182 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 20:56:34,182 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 917 transitions. [2023-08-31 20:56:34,184 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 101.88888888888889) internal successors, (917), 9 states have internal predecessors, (917), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:56:34,186 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 226.0) internal successors, (2260), 10 states have internal predecessors, (2260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:56:34,187 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 226.0) internal successors, (2260), 10 states have internal predecessors, (2260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:56:34,187 INFO L175 Difference]: Start difference. First operand has 123 places, 193 transitions, 2026 flow. Second operand 9 states and 917 transitions. [2023-08-31 20:56:34,187 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 239 transitions, 2903 flow [2023-08-31 20:56:34,249 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 239 transitions, 2780 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-31 20:56:34,251 INFO L231 Difference]: Finished difference. Result has 123 places, 0 transitions, 0 flow [2023-08-31 20:56:34,252 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=226, PETRI_DIFFERENCE_MINUEND_FLOW=1910, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=192, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=192, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=0, PETRI_PLACES=123, PETRI_TRANSITIONS=0} [2023-08-31 20:56:34,253 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 66 predicate places. [2023-08-31 20:56:34,253 INFO L495 AbstractCegarLoop]: Abstraction has has 123 places, 0 transitions, 0 flow [2023-08-31 20:56:34,253 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 97.6) internal successors, (976), 10 states have internal predecessors, (976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 20:56:34,255 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (10 of 11 remaining) [2023-08-31 20:56:34,259 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (9 of 11 remaining) [2023-08-31 20:56:34,259 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 11 remaining) [2023-08-31 20:56:34,259 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 11 remaining) [2023-08-31 20:56:34,259 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONDATA_RACE (6 of 11 remaining) [2023-08-31 20:56:34,259 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (5 of 11 remaining) [2023-08-31 20:56:34,259 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 11 remaining) [2023-08-31 20:56:34,260 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 11 remaining) [2023-08-31 20:56:34,260 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONDATA_RACE (2 of 11 remaining) [2023-08-31 20:56:34,260 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 11 remaining) [2023-08-31 20:56:34,260 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 11 remaining) [2023-08-31 20:56:34,260 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-31 20:56:34,260 INFO L445 BasicCegarLoop]: Path program histogram: [5, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 20:56:34,265 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-31 20:56:34,265 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-31 20:56:34,268 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.08 08:56:34 BasicIcfg [2023-08-31 20:56:34,268 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-31 20:56:34,269 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-31 20:56:34,269 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-31 20:56:34,269 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-31 20:56:34,269 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 08:56:16" (3/4) ... [2023-08-31 20:56:34,271 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-31 20:56:34,276 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2023-08-31 20:56:34,280 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2023-08-31 20:56:34,280 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-08-31 20:56:34,281 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-31 20:56:34,281 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-31 20:56:34,312 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-31 20:56:34,312 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-31 20:56:34,313 INFO L158 Benchmark]: Toolchain (without parser) took 19217.33ms. Allocated memory was 69.2MB in the beginning and 232.8MB in the end (delta: 163.6MB). Free memory was 44.6MB in the beginning and 126.1MB in the end (delta: -81.4MB). Peak memory consumption was 84.7MB. Max. memory is 16.1GB. [2023-08-31 20:56:34,313 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 69.2MB. Free memory was 46.4MB in the beginning and 46.3MB in the end (delta: 32.5kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-31 20:56:34,313 INFO L158 Benchmark]: CACSL2BoogieTranslator took 544.29ms. Allocated memory was 69.2MB in the beginning and 86.0MB in the end (delta: 16.8MB). Free memory was 44.4MB in the beginning and 61.5MB in the end (delta: -17.0MB). Peak memory consumption was 21.4MB. Max. memory is 16.1GB. [2023-08-31 20:56:34,314 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.52ms. Allocated memory is still 86.0MB. Free memory was 61.5MB in the beginning and 59.4MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-31 20:56:34,314 INFO L158 Benchmark]: Boogie Preprocessor took 57.59ms. Allocated memory is still 86.0MB. Free memory was 59.4MB in the beginning and 57.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-31 20:56:34,314 INFO L158 Benchmark]: RCFGBuilder took 491.77ms. Allocated memory is still 86.0MB. Free memory was 57.3MB in the beginning and 38.9MB in the end (delta: 18.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-08-31 20:56:34,315 INFO L158 Benchmark]: TraceAbstraction took 18010.43ms. Allocated memory was 86.0MB in the beginning and 232.8MB in the end (delta: 146.8MB). Free memory was 37.9MB in the beginning and 128.2MB in the end (delta: -90.2MB). Peak memory consumption was 130.0MB. Max. memory is 16.1GB. [2023-08-31 20:56:34,315 INFO L158 Benchmark]: Witness Printer took 43.66ms. Allocated memory is still 232.8MB. Free memory was 128.2MB in the beginning and 126.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-31 20:56:34,317 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 69.2MB. Free memory was 46.4MB in the beginning and 46.3MB in the end (delta: 32.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 544.29ms. Allocated memory was 69.2MB in the beginning and 86.0MB in the end (delta: 16.8MB). Free memory was 44.4MB in the beginning and 61.5MB in the end (delta: -17.0MB). Peak memory consumption was 21.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.52ms. Allocated memory is still 86.0MB. Free memory was 61.5MB in the beginning and 59.4MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 57.59ms. Allocated memory is still 86.0MB. Free memory was 59.4MB in the beginning and 57.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 491.77ms. Allocated memory is still 86.0MB. Free memory was 57.3MB in the beginning and 38.9MB in the end (delta: 18.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 18010.43ms. Allocated memory was 86.0MB in the beginning and 232.8MB in the end (delta: 146.8MB). Free memory was 37.9MB in the beginning and 128.2MB in the end (delta: -90.2MB). Peak memory consumption was 130.0MB. Max. memory is 16.1GB. * Witness Printer took 43.66ms. Allocated memory is still 232.8MB. Free memory was 128.2MB in the beginning and 126.1MB 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: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.1s, 128 PlacesBefore, 57 PlacesAfterwards, 133 TransitionsBefore, 61 TransitionsAfterwards, 4026 CoEnabledTransitionPairs, 6 FixpointIterations, 37 TrivialSequentialCompositions, 39 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 1 ChoiceCompositions, 83 TotalNumberOfCompositions, 20613 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3927, independent: 3307, independent conditional: 0, independent unconditional: 3307, dependent: 620, dependent conditional: 0, dependent unconditional: 620, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1816, independent: 1710, independent conditional: 0, independent unconditional: 1710, dependent: 106, dependent conditional: 0, dependent unconditional: 106, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3927, independent: 1597, independent conditional: 0, independent unconditional: 1597, dependent: 514, dependent conditional: 0, dependent unconditional: 514, unknown: 1816, unknown conditional: 0, unknown unconditional: 1816] , Statistics on independence cache: Total cache size (in pairs): 258, Positive cache size: 203, Positive conditional cache size: 0, Positive unconditional cache size: 203, Negative cache size: 55, Negative conditional cache size: 0, Negative unconditional cache size: 55, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 713]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 711]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 702]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 702]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 702]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 702]: 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 3 procedures, 192 locations, 11 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 17.9s, OverallIterations: 14, TraceHistogramMax: 1, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 10.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3590 SdHoareTripleChecker+Valid, 6.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2701 mSDsluCounter, 1503 SdHoareTripleChecker+Invalid, 5.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1097 mSDsCounter, 956 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 10950 IncrementalHoareTripleChecker+Invalid, 11906 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 956 mSolverCounterUnsat, 406 mSDtfsCounter, 10950 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 151 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 123 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 190 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3548occurred in iteration=11, InterpolantAutomatonStates: 103, 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, 3.8s InterpolantComputationTime, 345 NumberOfCodeBlocks, 345 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 331 ConstructedInterpolants, 0 QuantifiedInterpolants, 3305 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 14 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 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-31 20:56:34,345 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE