./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_07-cond_racing2.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_07-cond_racing2.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 45d1947e02656e790dafd6ca03f6eadb14d0b370e2217b75740af9998d975bef --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-29 18:15:50,399 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 18:15:50,400 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 18:15:50,434 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 18:15:50,436 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 18:15:50,438 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 18:15:50,439 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 18:15:50,441 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 18:15:50,443 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 18:15:50,446 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 18:15:50,447 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 18:15:50,448 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 18:15:50,449 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 18:15:50,450 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 18:15:50,451 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 18:15:50,454 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 18:15:50,455 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 18:15:50,456 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 18:15:50,457 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 18:15:50,461 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 18:15:50,466 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 18:15:50,467 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 18:15:50,467 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 18:15:50,468 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 18:15:50,473 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 18:15:50,473 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 18:15:50,473 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 18:15:50,474 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 18:15:50,475 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 18:15:50,476 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 18:15:50,477 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 18:15:50,481 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 18:15:50,481 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 18:15:50,482 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 18:15:50,483 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 18:15:50,483 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 18:15:50,484 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 18:15:50,484 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 18:15:50,484 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 18:15:50,485 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 18:15:50,485 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 18:15:50,486 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-29 18:15:50,511 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 18:15:50,511 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 18:15:50,512 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 18:15:50,512 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 18:15:50,513 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 18:15:50,513 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 18:15:50,513 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 18:15:50,513 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 18:15:50,514 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 18:15:50,514 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 18:15:50,514 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 18:15:50,515 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 18:15:50,515 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 18:15:50,515 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 18:15:50,515 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 18:15:50,515 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-29 18:15:50,515 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 18:15:50,515 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-29 18:15:50,516 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-29 18:15:50,516 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 18:15:50,516 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-29 18:15:50,516 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 18:15:50,516 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-29 18:15:50,516 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 18:15:50,516 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 18:15:50,517 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 18:15:50,517 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 18:15:50,517 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 18:15:50,517 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 18:15:50,517 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-29 18:15:50,517 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 18:15:50,518 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 18:15:50,518 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 18:15:50,518 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-29 18:15:50,518 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 18:15:50,518 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 18:15:50,518 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 18:15:50,518 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 45d1947e02656e790dafd6ca03f6eadb14d0b370e2217b75740af9998d975bef Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-29 18:15:50,750 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 18:15:50,763 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 18:15:50,765 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 18:15:50,765 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 18:15:50,766 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 18:15:50,766 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_07-cond_racing2.i [2023-08-29 18:15:51,661 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 18:15:51,902 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 18:15:51,903 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_07-cond_racing2.i [2023-08-29 18:15:51,917 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2f5e569da/3f1520917bec42dc98e731a5c0207c5a/FLAG98804e6f9 [2023-08-29 18:15:51,931 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2f5e569da/3f1520917bec42dc98e731a5c0207c5a [2023-08-29 18:15:51,933 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 18:15:51,934 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 18:15:51,936 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 18:15:51,937 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 18:15:51,939 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 18:15:51,940 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 06:15:51" (1/1) ... [2023-08-29 18:15:51,941 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4773c13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:15:51, skipping insertion in model container [2023-08-29 18:15:51,941 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 06:15:51" (1/1) ... [2023-08-29 18:15:51,945 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 18:15:51,980 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 18:15:52,291 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_07-cond_racing2.i[41322,41335] [2023-08-29 18:15:52,311 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 18:15:52,320 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 18:15:52,354 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_07-cond_racing2.i[41322,41335] [2023-08-29 18:15:52,361 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 18:15:52,407 INFO L208 MainTranslator]: Completed translation [2023-08-29 18:15:52,407 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:15:52 WrapperNode [2023-08-29 18:15:52,407 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 18:15:52,408 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 18:15:52,408 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 18:15:52,409 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 18:15:52,413 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:15:52" (1/1) ... [2023-08-29 18:15:52,430 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:15:52" (1/1) ... [2023-08-29 18:15:52,451 INFO L138 Inliner]: procedures = 270, calls = 30, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 97 [2023-08-29 18:15:52,451 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 18:15:52,452 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 18:15:52,452 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 18:15:52,452 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 18:15:52,461 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:15:52" (1/1) ... [2023-08-29 18:15:52,461 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:15:52" (1/1) ... [2023-08-29 18:15:52,464 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:15:52" (1/1) ... [2023-08-29 18:15:52,466 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:15:52" (1/1) ... [2023-08-29 18:15:52,472 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:15:52" (1/1) ... [2023-08-29 18:15:52,475 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:15:52" (1/1) ... [2023-08-29 18:15:52,481 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:15:52" (1/1) ... [2023-08-29 18:15:52,482 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:15:52" (1/1) ... [2023-08-29 18:15:52,484 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 18:15:52,484 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 18:15:52,484 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 18:15:52,484 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 18:15:52,485 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:15:52" (1/1) ... [2023-08-29 18:15:52,495 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 18:15:52,503 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 18:15:52,512 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-29 18:15:52,519 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-29 18:15:52,535 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 18:15:52,536 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 18:15:52,536 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-29 18:15:52,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-29 18:15:52,536 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-29 18:15:52,536 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-29 18:15:52,536 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-29 18:15:52,536 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-29 18:15:52,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-29 18:15:52,537 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 18:15:52,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 18:15:52,538 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-29 18:15:52,623 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 18:15:52,625 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 18:15:52,786 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 18:15:52,791 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 18:15:52,792 INFO L302 CfgBuilder]: Removed 10 assume(true) statements. [2023-08-29 18:15:52,793 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 06:15:52 BoogieIcfgContainer [2023-08-29 18:15:52,793 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 18:15:52,794 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 18:15:52,794 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 18:15:52,796 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 18:15:52,797 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 06:15:51" (1/3) ... [2023-08-29 18:15:52,797 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3340591a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 06:15:52, skipping insertion in model container [2023-08-29 18:15:52,797 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:15:52" (2/3) ... [2023-08-29 18:15:52,797 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3340591a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 06:15:52, skipping insertion in model container [2023-08-29 18:15:52,797 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 06:15:52" (3/3) ... [2023-08-29 18:15:52,798 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_07-cond_racing2.i [2023-08-29 18:15:52,804 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-29 18:15:52,809 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 18:15:52,809 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-08-29 18:15:52,810 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 18:15:52,865 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-29 18:15:52,888 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 133 places, 145 transitions, 298 flow [2023-08-29 18:15:52,933 INFO L130 PetriNetUnfolder]: 23/195 cut-off events. [2023-08-29 18:15:52,933 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-29 18:15:52,937 INFO L83 FinitePrefix]: Finished finitePrefix Result has 201 conditions, 195 events. 23/195 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 541 event pairs, 0 based on Foata normal form. 0/161 useless extension candidates. Maximal degree in co-relation 99. Up to 6 conditions per place. [2023-08-29 18:15:52,937 INFO L82 GeneralOperation]: Start removeDead. Operand has 133 places, 145 transitions, 298 flow [2023-08-29 18:15:52,940 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 133 places, 145 transitions, 298 flow [2023-08-29 18:15:52,942 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 18:15:52,947 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 133 places, 145 transitions, 298 flow [2023-08-29 18:15:52,949 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 133 places, 145 transitions, 298 flow [2023-08-29 18:15:52,949 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 133 places, 145 transitions, 298 flow [2023-08-29 18:15:52,985 INFO L130 PetriNetUnfolder]: 23/195 cut-off events. [2023-08-29 18:15:52,986 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-29 18:15:52,986 INFO L83 FinitePrefix]: Finished finitePrefix Result has 201 conditions, 195 events. 23/195 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 541 event pairs, 0 based on Foata normal form. 0/161 useless extension candidates. Maximal degree in co-relation 99. Up to 6 conditions per place. [2023-08-29 18:15:52,989 INFO L119 LiptonReduction]: Number of co-enabled transitions 4928 [2023-08-29 18:15:55,696 INFO L134 LiptonReduction]: Checked pairs total: 11915 [2023-08-29 18:15:55,696 INFO L136 LiptonReduction]: Total number of compositions: 115 [2023-08-29 18:15:55,705 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 18:15:55,721 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;@552fbe57, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 18:15:55,721 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2023-08-29 18:15:55,724 INFO L130 PetriNetUnfolder]: 1/10 cut-off events. [2023-08-29 18:15:55,724 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 18:15:55,724 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:15:55,724 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-29 18:15:55,725 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2023-08-29 18:15:55,728 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:15:55,728 INFO L85 PathProgramCache]: Analyzing trace with hash 16772153, now seen corresponding path program 1 times [2023-08-29 18:15:55,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:15:55,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897419036] [2023-08-29 18:15:55,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:15:55,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:15:55,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:15:55,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 18:15:55,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:15:55,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897419036] [2023-08-29 18:15:55,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [897419036] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:15:55,924 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:15:55,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 18:15:55,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729826644] [2023-08-29 18:15:55,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:15:55,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 18:15:55,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:15:55,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 18:15:55,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 18:15:55,971 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 260 [2023-08-29 18:15:55,975 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 51 transitions, 110 flow. Second operand has 3 states, 3 states have (on average 128.33333333333334) internal successors, (385), 3 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:15:55,975 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:15:55,975 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 260 [2023-08-29 18:15:55,976 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:15:56,071 INFO L130 PetriNetUnfolder]: 133/367 cut-off events. [2023-08-29 18:15:56,071 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-29 18:15:56,074 INFO L83 FinitePrefix]: Finished finitePrefix Result has 657 conditions, 367 events. 133/367 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1634 event pairs, 99 based on Foata normal form. 35/348 useless extension candidates. Maximal degree in co-relation 633. Up to 268 conditions per place. [2023-08-29 18:15:56,077 INFO L137 encePairwiseOnDemand]: 246/260 looper letters, 36 selfloop transitions, 2 changer transitions 2/53 dead transitions. [2023-08-29 18:15:56,077 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 53 transitions, 194 flow [2023-08-29 18:15:56,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 18:15:56,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 18:15:56,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 439 transitions. [2023-08-29 18:15:56,092 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5628205128205128 [2023-08-29 18:15:56,092 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 439 transitions. [2023-08-29 18:15:56,093 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 439 transitions. [2023-08-29 18:15:56,095 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:15:56,097 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 439 transitions. [2023-08-29 18:15:56,100 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 146.33333333333334) internal successors, (439), 3 states have internal predecessors, (439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:15:56,104 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 260.0) internal successors, (1040), 4 states have internal predecessors, (1040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:15:56,105 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 260.0) internal successors, (1040), 4 states have internal predecessors, (1040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:15:56,106 INFO L175 Difference]: Start difference. First operand has 43 places, 51 transitions, 110 flow. Second operand 3 states and 439 transitions. [2023-08-29 18:15:56,106 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 53 transitions, 194 flow [2023-08-29 18:15:56,109 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 53 transitions, 194 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 18:15:56,110 INFO L231 Difference]: Finished difference. Result has 44 places, 38 transitions, 91 flow [2023-08-29 18:15:56,111 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=260, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=91, PETRI_PLACES=44, PETRI_TRANSITIONS=38} [2023-08-29 18:15:56,115 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 1 predicate places. [2023-08-29 18:15:56,115 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 38 transitions, 91 flow [2023-08-29 18:15:56,116 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 128.33333333333334) internal successors, (385), 3 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:15:56,116 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:15:56,116 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2023-08-29 18:15:56,116 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-29 18:15:56,116 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2023-08-29 18:15:56,120 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:15:56,120 INFO L85 PathProgramCache]: Analyzing trace with hash -1089913459, now seen corresponding path program 1 times [2023-08-29 18:15:56,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:15:56,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389964238] [2023-08-29 18:15:56,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:15:56,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:15:56,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-29 18:15:56,138 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-29 18:15:56,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-29 18:15:56,158 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-29 18:15:56,158 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-29 18:15:56,159 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 11 remaining) [2023-08-29 18:15:56,161 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (9 of 11 remaining) [2023-08-29 18:15:56,161 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (8 of 11 remaining) [2023-08-29 18:15:56,161 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 11 remaining) [2023-08-29 18:15:56,161 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (6 of 11 remaining) [2023-08-29 18:15:56,161 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (5 of 11 remaining) [2023-08-29 18:15:56,162 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 11 remaining) [2023-08-29 18:15:56,162 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 11 remaining) [2023-08-29 18:15:56,162 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (2 of 11 remaining) [2023-08-29 18:15:56,162 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 11 remaining) [2023-08-29 18:15:56,162 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 11 remaining) [2023-08-29 18:15:56,162 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-29 18:15:56,163 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-08-29 18:15:56,164 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-29 18:15:56,164 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-08-29 18:15:56,178 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-29 18:15:56,181 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 174 places, 191 transitions, 400 flow [2023-08-29 18:15:56,210 INFO L130 PetriNetUnfolder]: 40/321 cut-off events. [2023-08-29 18:15:56,210 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2023-08-29 18:15:56,212 INFO L83 FinitePrefix]: Finished finitePrefix Result has 335 conditions, 321 events. 40/321 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1079 event pairs, 0 based on Foata normal form. 0/262 useless extension candidates. Maximal degree in co-relation 197. Up to 9 conditions per place. [2023-08-29 18:15:56,212 INFO L82 GeneralOperation]: Start removeDead. Operand has 174 places, 191 transitions, 400 flow [2023-08-29 18:15:56,214 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 174 places, 191 transitions, 400 flow [2023-08-29 18:15:56,214 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 18:15:56,214 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 174 places, 191 transitions, 400 flow [2023-08-29 18:15:56,214 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 174 places, 191 transitions, 400 flow [2023-08-29 18:15:56,215 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 174 places, 191 transitions, 400 flow [2023-08-29 18:15:56,254 INFO L130 PetriNetUnfolder]: 40/321 cut-off events. [2023-08-29 18:15:56,254 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2023-08-29 18:15:56,255 INFO L83 FinitePrefix]: Finished finitePrefix Result has 335 conditions, 321 events. 40/321 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1079 event pairs, 0 based on Foata normal form. 0/262 useless extension candidates. Maximal degree in co-relation 197. Up to 9 conditions per place. [2023-08-29 18:15:56,264 INFO L119 LiptonReduction]: Number of co-enabled transitions 14696 [2023-08-29 18:15:58,727 INFO L134 LiptonReduction]: Checked pairs total: 47717 [2023-08-29 18:15:58,728 INFO L136 LiptonReduction]: Total number of compositions: 129 [2023-08-29 18:15:58,729 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 18:15:58,730 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;@552fbe57, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 18:15:58,730 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2023-08-29 18:15:58,732 INFO L130 PetriNetUnfolder]: 1/11 cut-off events. [2023-08-29 18:15:58,732 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 18:15:58,732 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:15:58,732 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-29 18:15:58,733 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 12 more)] === [2023-08-29 18:15:58,733 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:15:58,733 INFO L85 PathProgramCache]: Analyzing trace with hash 28040057, now seen corresponding path program 1 times [2023-08-29 18:15:58,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:15:58,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475154604] [2023-08-29 18:15:58,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:15:58,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:15:58,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:15:58,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 18:15:58,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:15:58,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475154604] [2023-08-29 18:15:58,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [475154604] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:15:58,800 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:15:58,800 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 18:15:58,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301756958] [2023-08-29 18:15:58,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:15:58,801 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 18:15:58,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:15:58,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 18:15:58,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 18:15:58,809 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 165 out of 320 [2023-08-29 18:15:58,810 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 86 transitions, 190 flow. Second operand has 3 states, 3 states have (on average 166.33333333333334) internal successors, (499), 3 states have internal predecessors, (499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:15:58,810 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:15:58,810 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 165 of 320 [2023-08-29 18:15:58,810 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:15:59,174 INFO L130 PetriNetUnfolder]: 2604/5329 cut-off events. [2023-08-29 18:15:59,174 INFO L131 PetriNetUnfolder]: For 59/59 co-relation queries the response was YES. [2023-08-29 18:15:59,180 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9517 conditions, 5329 events. 2604/5329 cut-off events. For 59/59 co-relation queries the response was YES. Maximal size of possible extension queue 187. Compared 39801 event pairs, 2188 based on Foata normal form. 648/5267 useless extension candidates. Maximal degree in co-relation 6301. Up to 4105 conditions per place. [2023-08-29 18:15:59,196 INFO L137 encePairwiseOnDemand]: 300/320 looper letters, 47 selfloop transitions, 2 changer transitions 0/81 dead transitions. [2023-08-29 18:15:59,196 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 81 transitions, 278 flow [2023-08-29 18:15:59,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 18:15:59,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 18:15:59,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 568 transitions. [2023-08-29 18:15:59,199 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5916666666666667 [2023-08-29 18:15:59,199 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 568 transitions. [2023-08-29 18:15:59,199 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 568 transitions. [2023-08-29 18:15:59,199 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:15:59,199 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 568 transitions. [2023-08-29 18:15:59,201 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 189.33333333333334) internal successors, (568), 3 states have internal predecessors, (568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:15:59,203 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 320.0) internal successors, (1280), 4 states have internal predecessors, (1280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:15:59,203 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 320.0) internal successors, (1280), 4 states have internal predecessors, (1280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:15:59,203 INFO L175 Difference]: Start difference. First operand has 73 places, 86 transitions, 190 flow. Second operand 3 states and 568 transitions. [2023-08-29 18:15:59,203 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 81 transitions, 278 flow [2023-08-29 18:15:59,206 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 81 transitions, 278 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 18:15:59,207 INFO L231 Difference]: Finished difference. Result has 74 places, 70 transitions, 170 flow [2023-08-29 18:15:59,208 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=320, PETRI_DIFFERENCE_MINUEND_FLOW=156, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=170, PETRI_PLACES=74, PETRI_TRANSITIONS=70} [2023-08-29 18:15:59,208 INFO L281 CegarLoopForPetriNet]: 73 programPoint places, 1 predicate places. [2023-08-29 18:15:59,208 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 70 transitions, 170 flow [2023-08-29 18:15:59,211 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 166.33333333333334) internal successors, (499), 3 states have internal predecessors, (499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:15:59,211 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:15:59,212 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:15:59,212 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-29 18:15:59,212 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 12 more)] === [2023-08-29 18:15:59,212 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:15:59,213 INFO L85 PathProgramCache]: Analyzing trace with hash 1031014646, now seen corresponding path program 1 times [2023-08-29 18:15:59,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:15:59,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288470430] [2023-08-29 18:15:59,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:15:59,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:15:59,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:15:59,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 18:15:59,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:15:59,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288470430] [2023-08-29 18:15:59,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288470430] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:15:59,258 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:15:59,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 18:15:59,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419519904] [2023-08-29 18:15:59,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:15:59,259 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 18:15:59,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:15:59,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 18:15:59,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 18:15:59,287 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 150 out of 320 [2023-08-29 18:15:59,288 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 70 transitions, 170 flow. Second operand has 3 states, 3 states have (on average 152.33333333333334) internal successors, (457), 3 states have internal predecessors, (457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:15:59,288 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:15:59,288 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 150 of 320 [2023-08-29 18:15:59,288 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:16:00,245 INFO L130 PetriNetUnfolder]: 9446/17168 cut-off events. [2023-08-29 18:16:00,245 INFO L131 PetriNetUnfolder]: For 783/783 co-relation queries the response was YES. [2023-08-29 18:16:00,265 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33331 conditions, 17168 events. 9446/17168 cut-off events. For 783/783 co-relation queries the response was YES. Maximal size of possible extension queue 491. Compared 132298 event pairs, 3843 based on Foata normal form. 0/15690 useless extension candidates. Maximal degree in co-relation 33225. Up to 7814 conditions per place. [2023-08-29 18:16:00,322 INFO L137 encePairwiseOnDemand]: 301/320 looper letters, 83 selfloop transitions, 14 changer transitions 0/115 dead transitions. [2023-08-29 18:16:00,322 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 115 transitions, 474 flow [2023-08-29 18:16:00,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 18:16:00,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 18:16:00,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 550 transitions. [2023-08-29 18:16:00,325 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5729166666666666 [2023-08-29 18:16:00,326 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 550 transitions. [2023-08-29 18:16:00,326 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 550 transitions. [2023-08-29 18:16:00,327 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:16:00,327 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 550 transitions. [2023-08-29 18:16:00,331 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 183.33333333333334) internal successors, (550), 3 states have internal predecessors, (550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:16:00,332 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 320.0) internal successors, (1280), 4 states have internal predecessors, (1280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:16:00,333 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 320.0) internal successors, (1280), 4 states have internal predecessors, (1280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:16:00,333 INFO L175 Difference]: Start difference. First operand has 74 places, 70 transitions, 170 flow. Second operand 3 states and 550 transitions. [2023-08-29 18:16:00,333 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 115 transitions, 474 flow [2023-08-29 18:16:00,337 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 115 transitions, 471 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 18:16:00,338 INFO L231 Difference]: Finished difference. Result has 77 places, 84 transitions, 290 flow [2023-08-29 18:16:00,338 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=320, PETRI_DIFFERENCE_MINUEND_FLOW=168, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=290, PETRI_PLACES=77, PETRI_TRANSITIONS=84} [2023-08-29 18:16:00,340 INFO L281 CegarLoopForPetriNet]: 73 programPoint places, 4 predicate places. [2023-08-29 18:16:00,340 INFO L495 AbstractCegarLoop]: Abstraction has has 77 places, 84 transitions, 290 flow [2023-08-29 18:16:00,341 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 152.33333333333334) internal successors, (457), 3 states have internal predecessors, (457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:16:00,341 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:16:00,341 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2023-08-29 18:16:00,341 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-29 18:16:00,341 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 12 more)] === [2023-08-29 18:16:00,342 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:16:00,342 INFO L85 PathProgramCache]: Analyzing trace with hash -58784605, now seen corresponding path program 1 times [2023-08-29 18:16:00,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:16:00,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448402960] [2023-08-29 18:16:00,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:16:00,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:16:00,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-29 18:16:00,366 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-29 18:16:00,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-29 18:16:00,395 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-29 18:16:00,397 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-29 18:16:00,397 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (14 of 15 remaining) [2023-08-29 18:16:00,397 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (13 of 15 remaining) [2023-08-29 18:16:00,398 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (12 of 15 remaining) [2023-08-29 18:16:00,398 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (11 of 15 remaining) [2023-08-29 18:16:00,398 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (10 of 15 remaining) [2023-08-29 18:16:00,398 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (9 of 15 remaining) [2023-08-29 18:16:00,398 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (8 of 15 remaining) [2023-08-29 18:16:00,399 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 15 remaining) [2023-08-29 18:16:00,399 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (6 of 15 remaining) [2023-08-29 18:16:00,399 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (5 of 15 remaining) [2023-08-29 18:16:00,399 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 15 remaining) [2023-08-29 18:16:00,399 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 15 remaining) [2023-08-29 18:16:00,399 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (2 of 15 remaining) [2023-08-29 18:16:00,400 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 15 remaining) [2023-08-29 18:16:00,400 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 15 remaining) [2023-08-29 18:16:00,400 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-29 18:16:00,401 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-08-29 18:16:00,401 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-29 18:16:00,401 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2023-08-29 18:16:00,464 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-08-29 18:16:00,466 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 215 places, 237 transitions, 504 flow [2023-08-29 18:16:00,498 INFO L130 PetriNetUnfolder]: 62/490 cut-off events. [2023-08-29 18:16:00,499 INFO L131 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2023-08-29 18:16:00,502 INFO L83 FinitePrefix]: Finished finitePrefix Result has 518 conditions, 490 events. 62/490 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1803 event pairs, 1 based on Foata normal form. 0/400 useless extension candidates. Maximal degree in co-relation 329. Up to 16 conditions per place. [2023-08-29 18:16:00,502 INFO L82 GeneralOperation]: Start removeDead. Operand has 215 places, 237 transitions, 504 flow [2023-08-29 18:16:00,505 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 215 places, 237 transitions, 504 flow [2023-08-29 18:16:00,505 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 18:16:00,505 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 215 places, 237 transitions, 504 flow [2023-08-29 18:16:00,505 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 215 places, 237 transitions, 504 flow [2023-08-29 18:16:00,505 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 215 places, 237 transitions, 504 flow [2023-08-29 18:16:00,537 INFO L130 PetriNetUnfolder]: 62/490 cut-off events. [2023-08-29 18:16:00,537 INFO L131 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2023-08-29 18:16:00,541 INFO L83 FinitePrefix]: Finished finitePrefix Result has 518 conditions, 490 events. 62/490 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1803 event pairs, 1 based on Foata normal form. 0/400 useless extension candidates. Maximal degree in co-relation 329. Up to 16 conditions per place. [2023-08-29 18:16:00,553 INFO L119 LiptonReduction]: Number of co-enabled transitions 28248 [2023-08-29 18:16:03,329 INFO L134 LiptonReduction]: Checked pairs total: 112985 [2023-08-29 18:16:03,329 INFO L136 LiptonReduction]: Total number of compositions: 151 [2023-08-29 18:16:03,333 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 18:16:03,334 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;@552fbe57, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 18:16:03,334 INFO L358 AbstractCegarLoop]: Starting to check reachability of 19 error locations. [2023-08-29 18:16:03,335 INFO L130 PetriNetUnfolder]: 1/10 cut-off events. [2023-08-29 18:16:03,336 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 18:16:03,336 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:16:03,336 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-29 18:16:03,336 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2023-08-29 18:16:03,336 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:16:03,336 INFO L85 PathProgramCache]: Analyzing trace with hash 41400219, now seen corresponding path program 1 times [2023-08-29 18:16:03,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:16:03,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808679326] [2023-08-29 18:16:03,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:16:03,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:16:03,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:16:03,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 18:16:03,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:16:03,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808679326] [2023-08-29 18:16:03,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [808679326] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:16:03,359 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:16:03,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 18:16:03,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056965332] [2023-08-29 18:16:03,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:16:03,359 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 18:16:03,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:16:03,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 18:16:03,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 18:16:03,365 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 203 out of 388 [2023-08-29 18:16:03,366 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 115 transitions, 260 flow. Second operand has 3 states, 3 states have (on average 204.33333333333334) internal successors, (613), 3 states have internal predecessors, (613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:16:03,366 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:16:03,366 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 203 of 388 [2023-08-29 18:16:03,366 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:16:07,901 INFO L130 PetriNetUnfolder]: 44830/77840 cut-off events. [2023-08-29 18:16:07,901 INFO L131 PetriNetUnfolder]: For 1594/1594 co-relation queries the response was YES. [2023-08-29 18:16:08,036 INFO L83 FinitePrefix]: Finished finitePrefix Result has 141045 conditions, 77840 events. 44830/77840 cut-off events. For 1594/1594 co-relation queries the response was YES. Maximal size of possible extension queue 1993. Compared 733079 event pairs, 28031 based on Foata normal form. 10417/80064 useless extension candidates. Maximal degree in co-relation 9903. Up to 62105 conditions per place. [2023-08-29 18:16:08,473 INFO L137 encePairwiseOnDemand]: 363/388 looper letters, 59 selfloop transitions, 2 changer transitions 0/106 dead transitions. [2023-08-29 18:16:08,474 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 106 transitions, 364 flow [2023-08-29 18:16:08,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 18:16:08,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 18:16:08,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 699 transitions. [2023-08-29 18:16:08,475 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6005154639175257 [2023-08-29 18:16:08,476 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 699 transitions. [2023-08-29 18:16:08,476 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 699 transitions. [2023-08-29 18:16:08,476 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:16:08,476 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 699 transitions. [2023-08-29 18:16:08,477 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 233.0) internal successors, (699), 3 states have internal predecessors, (699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:16:08,479 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 388.0) internal successors, (1552), 4 states have internal predecessors, (1552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:16:08,479 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 388.0) internal successors, (1552), 4 states have internal predecessors, (1552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:16:08,480 INFO L175 Difference]: Start difference. First operand has 98 places, 115 transitions, 260 flow. Second operand 3 states and 699 transitions. [2023-08-29 18:16:08,480 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 106 transitions, 364 flow [2023-08-29 18:16:08,483 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 106 transitions, 364 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 18:16:08,485 INFO L231 Difference]: Finished difference. Result has 100 places, 95 transitions, 232 flow [2023-08-29 18:16:08,485 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=388, PETRI_DIFFERENCE_MINUEND_FLOW=218, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=232, PETRI_PLACES=100, PETRI_TRANSITIONS=95} [2023-08-29 18:16:08,487 INFO L281 CegarLoopForPetriNet]: 98 programPoint places, 2 predicate places. [2023-08-29 18:16:08,488 INFO L495 AbstractCegarLoop]: Abstraction has has 100 places, 95 transitions, 232 flow [2023-08-29 18:16:08,488 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 204.33333333333334) internal successors, (613), 3 states have internal predecessors, (613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:16:08,489 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:16:08,489 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:16:08,489 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-29 18:16:08,489 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2023-08-29 18:16:08,490 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:16:08,490 INFO L85 PathProgramCache]: Analyzing trace with hash 108325447, now seen corresponding path program 1 times [2023-08-29 18:16:08,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:16:08,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038139998] [2023-08-29 18:16:08,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:16:08,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:16:08,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:16:08,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 18:16:08,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:16:08,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038139998] [2023-08-29 18:16:08,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2038139998] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:16:08,519 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:16:08,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 18:16:08,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189297759] [2023-08-29 18:16:08,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:16:08,520 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 18:16:08,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:16:08,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 18:16:08,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 18:16:08,551 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 180 out of 388 [2023-08-29 18:16:08,552 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 95 transitions, 232 flow. Second operand has 3 states, 3 states have (on average 182.0) internal successors, (546), 3 states have internal predecessors, (546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:16:08,552 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:16:08,552 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 180 of 388 [2023-08-29 18:16:08,552 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:16:32,421 INFO L130 PetriNetUnfolder]: 298911/451134 cut-off events. [2023-08-29 18:16:32,421 INFO L131 PetriNetUnfolder]: For 19584/19584 co-relation queries the response was YES. [2023-08-29 18:16:33,267 INFO L83 FinitePrefix]: Finished finitePrefix Result has 892315 conditions, 451134 events. 298911/451134 cut-off events. For 19584/19584 co-relation queries the response was YES. Maximal size of possible extension queue 8017. Compared 4034539 event pairs, 124499 based on Foata normal form. 0/410681 useless extension candidates. Maximal degree in co-relation 892203. Up to 216393 conditions per place. [2023-08-29 18:16:34,807 INFO L137 encePairwiseOnDemand]: 361/388 looper letters, 111 selfloop transitions, 20 changer transitions 0/156 dead transitions. [2023-08-29 18:16:34,807 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 156 transitions, 646 flow [2023-08-29 18:16:34,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 18:16:34,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 18:16:34,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 676 transitions. [2023-08-29 18:16:34,809 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5807560137457045 [2023-08-29 18:16:34,809 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 676 transitions. [2023-08-29 18:16:34,809 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 676 transitions. [2023-08-29 18:16:34,809 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:16:34,810 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 676 transitions. [2023-08-29 18:16:34,811 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 225.33333333333334) internal successors, (676), 3 states have internal predecessors, (676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:16:34,812 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 388.0) internal successors, (1552), 4 states have internal predecessors, (1552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:16:34,813 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 388.0) internal successors, (1552), 4 states have internal predecessors, (1552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:16:34,813 INFO L175 Difference]: Start difference. First operand has 100 places, 95 transitions, 232 flow. Second operand 3 states and 676 transitions. [2023-08-29 18:16:34,813 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 156 transitions, 646 flow [2023-08-29 18:16:34,826 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 156 transitions, 643 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 18:16:34,827 INFO L231 Difference]: Finished difference. Result has 103 places, 115 transitions, 404 flow [2023-08-29 18:16:34,828 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=388, PETRI_DIFFERENCE_MINUEND_FLOW=230, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=404, PETRI_PLACES=103, PETRI_TRANSITIONS=115} [2023-08-29 18:16:34,828 INFO L281 CegarLoopForPetriNet]: 98 programPoint places, 5 predicate places. [2023-08-29 18:16:34,828 INFO L495 AbstractCegarLoop]: Abstraction has has 103 places, 115 transitions, 404 flow [2023-08-29 18:16:34,829 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 182.0) internal successors, (546), 3 states have internal predecessors, (546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:16:34,829 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:16:34,829 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:16:34,829 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-29 18:16:34,829 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2023-08-29 18:16:34,829 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:16:34,829 INFO L85 PathProgramCache]: Analyzing trace with hash -1812187635, now seen corresponding path program 1 times [2023-08-29 18:16:34,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:16:34,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19876889] [2023-08-29 18:16:34,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:16:34,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:16:34,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:16:34,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 18:16:34,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:16:34,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19876889] [2023-08-29 18:16:34,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [19876889] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:16:34,859 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:16:34,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 18:16:34,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677571991] [2023-08-29 18:16:34,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:16:34,860 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 18:16:34,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:16:34,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 18:16:34,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 18:16:34,894 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 388 [2023-08-29 18:16:34,895 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 115 transitions, 404 flow. Second operand has 3 states, 3 states have (on average 192.33333333333334) internal successors, (577), 3 states have internal predecessors, (577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:16:34,895 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:16:34,895 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 388 [2023-08-29 18:16:34,895 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:16:35,762 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1131] L939-16-->L939-17: Formula: (= |v_#race~global~0_10| 0) InVars {} OutVars{#race~global~0=|v_#race~global~0_10|} AuxVars[] AssignedVars[#race~global~0][89], [225#(= |#race~global~0| 0), 183#L949-5true, t_funThread1of3ForFork0InUse, Black: 223#true, 59#L939-4true, t_funThread2of3ForFork0InUse, t_funThread3of3ForFork0NotInUse, 229#true, 148#L939-17true, Black: 220#(= |ULTIMATE.start_main_~i~1#1| 0)]) [2023-08-29 18:16:35,762 INFO L383 tUnfolder$Statistics]: this new event has 30 ancestors and is cut-off event [2023-08-29 18:16:35,762 INFO L386 tUnfolder$Statistics]: existing Event has 30 ancestors and is cut-off event [2023-08-29 18:16:35,762 INFO L386 tUnfolder$Statistics]: existing Event has 30 ancestors and is cut-off event [2023-08-29 18:16:35,762 INFO L386 tUnfolder$Statistics]: existing Event has 30 ancestors and is cut-off event [2023-08-29 18:16:36,123 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1195] L939-6-->L939-8: Formula: (= |v_t_funThread2of3ForFork0_#t~nondet34_13| |v_#race~global~0_58|) InVars {} OutVars{t_funThread2of3ForFork0_#t~nondet34=|v_t_funThread2of3ForFork0_#t~nondet34_13|, #race~global~0=|v_#race~global~0_58|} AuxVars[] AssignedVars[t_funThread2of3ForFork0_#t~nondet34, #race~global~0][50], [183#L949-5true, Black: 225#(= |#race~global~0| 0), t_funThread1of3ForFork0InUse, 193#L939-8true, t_funThread2of3ForFork0InUse, t_funThread3of3ForFork0NotInUse, 229#true, 223#true, 87#L939-16true, Black: 220#(= |ULTIMATE.start_main_~i~1#1| 0)]) [2023-08-29 18:16:36,124 INFO L383 tUnfolder$Statistics]: this new event has 32 ancestors and is cut-off event [2023-08-29 18:16:36,124 INFO L386 tUnfolder$Statistics]: existing Event has 32 ancestors and is cut-off event [2023-08-29 18:16:36,124 INFO L386 tUnfolder$Statistics]: existing Event has 32 ancestors and is cut-off event [2023-08-29 18:16:36,124 INFO L386 tUnfolder$Statistics]: existing Event has 32 ancestors and is cut-off event [2023-08-29 18:16:36,627 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1131] L939-16-->L939-17: Formula: (= |v_#race~global~0_10| 0) InVars {} OutVars{#race~global~0=|v_#race~global~0_10|} AuxVars[] AssignedVars[#race~global~0][89], [225#(= |#race~global~0| 0), 183#L949-5true, t_funThread1of3ForFork0InUse, Black: 223#true, 59#L939-4true, t_funThread2of3ForFork0InUse, 229#true, t_funThread3of3ForFork0InUse, 148#L939-17true, 45#$Ultimate##0true, Black: 220#(= |ULTIMATE.start_main_~i~1#1| 0)]) [2023-08-29 18:16:36,627 INFO L383 tUnfolder$Statistics]: this new event has 34 ancestors and is cut-off event [2023-08-29 18:16:36,627 INFO L386 tUnfolder$Statistics]: existing Event has 34 ancestors and is cut-off event [2023-08-29 18:16:36,627 INFO L386 tUnfolder$Statistics]: existing Event has 34 ancestors and is cut-off event [2023-08-29 18:16:36,627 INFO L386 tUnfolder$Statistics]: existing Event has 34 ancestors and is cut-off event [2023-08-29 18:16:36,938 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1131] L939-16-->L939-17: Formula: (= |v_#race~global~0_10| 0) InVars {} OutVars{#race~global~0=|v_#race~global~0_10|} AuxVars[] AssignedVars[#race~global~0][89], [225#(= |#race~global~0| 0), 183#L949-5true, t_funThread1of3ForFork0InUse, Black: 223#true, 141#L939-29true, 59#L939-4true, t_funThread2of3ForFork0InUse, 229#true, t_funThread3of3ForFork0InUse, 148#L939-17true, Black: 220#(= |ULTIMATE.start_main_~i~1#1| 0)]) [2023-08-29 18:16:36,938 INFO L383 tUnfolder$Statistics]: this new event has 35 ancestors and is cut-off event [2023-08-29 18:16:36,938 INFO L386 tUnfolder$Statistics]: existing Event has 35 ancestors and is cut-off event [2023-08-29 18:16:36,939 INFO L386 tUnfolder$Statistics]: existing Event has 35 ancestors and is cut-off event [2023-08-29 18:16:36,939 INFO L386 tUnfolder$Statistics]: existing Event has 35 ancestors and is cut-off event [2023-08-29 18:16:37,413 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1195] L939-6-->L939-8: Formula: (= |v_t_funThread2of3ForFork0_#t~nondet34_13| |v_#race~global~0_58|) InVars {} OutVars{t_funThread2of3ForFork0_#t~nondet34=|v_t_funThread2of3ForFork0_#t~nondet34_13|, #race~global~0=|v_#race~global~0_58|} AuxVars[] AssignedVars[t_funThread2of3ForFork0_#t~nondet34, #race~global~0][50], [183#L949-5true, Black: 225#(= |#race~global~0| 0), t_funThread1of3ForFork0InUse, 141#L939-29true, 193#L939-8true, t_funThread2of3ForFork0InUse, 229#true, 122#L939-27true, t_funThread3of3ForFork0InUse, 223#true, Black: 220#(= |ULTIMATE.start_main_~i~1#1| 0)]) [2023-08-29 18:16:37,414 INFO L383 tUnfolder$Statistics]: this new event has 36 ancestors and is cut-off event [2023-08-29 18:16:37,414 INFO L386 tUnfolder$Statistics]: existing Event has 36 ancestors and is cut-off event [2023-08-29 18:16:37,414 INFO L386 tUnfolder$Statistics]: existing Event has 36 ancestors and is cut-off event [2023-08-29 18:16:37,414 INFO L386 tUnfolder$Statistics]: existing Event has 36 ancestors and is cut-off event [2023-08-29 18:16:37,414 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1192] L939-1-->L939-3: Formula: (= |v_#race~global~0_56| 0) InVars {} OutVars{t_funThread3of3ForFork0_#t~nondet32=|v_t_funThread3of3ForFork0_#t~nondet32_7|, #race~global~0=|v_#race~global~0_56|} AuxVars[] AssignedVars[t_funThread3of3ForFork0_#t~nondet32, #race~global~0][76], [225#(= |#race~global~0| 0), 183#L949-5true, t_funThread1of3ForFork0InUse, Black: 223#true, 59#L939-4true, t_funThread2of3ForFork0InUse, 229#true, 122#L939-27true, 137#L939-3true, t_funThread3of3ForFork0InUse, Black: 220#(= |ULTIMATE.start_main_~i~1#1| 0)]) [2023-08-29 18:16:37,414 INFO L383 tUnfolder$Statistics]: this new event has 36 ancestors and is cut-off event [2023-08-29 18:16:37,414 INFO L386 tUnfolder$Statistics]: existing Event has 36 ancestors and is cut-off event [2023-08-29 18:16:37,414 INFO L386 tUnfolder$Statistics]: existing Event has 36 ancestors and is cut-off event [2023-08-29 18:16:37,414 INFO L386 tUnfolder$Statistics]: existing Event has 36 ancestors and is cut-off event [2023-08-29 18:16:37,415 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1195] L939-6-->L939-8: Formula: (= |v_t_funThread2of3ForFork0_#t~nondet34_13| |v_#race~global~0_58|) InVars {} OutVars{t_funThread2of3ForFork0_#t~nondet34=|v_t_funThread2of3ForFork0_#t~nondet34_13|, #race~global~0=|v_#race~global~0_58|} AuxVars[] AssignedVars[t_funThread2of3ForFork0_#t~nondet34, #race~global~0][50], [183#L949-5true, Black: 225#(= |#race~global~0| 0), t_funThread1of3ForFork0InUse, 193#L939-8true, t_funThread2of3ForFork0InUse, 229#true, t_funThread3of3ForFork0InUse, 45#$Ultimate##0true, 87#L939-16true, 223#true, Black: 220#(= |ULTIMATE.start_main_~i~1#1| 0)]) [2023-08-29 18:16:37,415 INFO L383 tUnfolder$Statistics]: this new event has 36 ancestors and is cut-off event [2023-08-29 18:16:37,415 INFO L386 tUnfolder$Statistics]: existing Event has 36 ancestors and is cut-off event [2023-08-29 18:16:37,415 INFO L386 tUnfolder$Statistics]: existing Event has 36 ancestors and is cut-off event [2023-08-29 18:16:37,415 INFO L386 tUnfolder$Statistics]: existing Event has 36 ancestors and is cut-off event [2023-08-29 18:16:37,776 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1195] L939-6-->L939-8: Formula: (= |v_t_funThread2of3ForFork0_#t~nondet34_13| |v_#race~global~0_58|) InVars {} OutVars{t_funThread2of3ForFork0_#t~nondet34=|v_t_funThread2of3ForFork0_#t~nondet34_13|, #race~global~0=|v_#race~global~0_58|} AuxVars[] AssignedVars[t_funThread2of3ForFork0_#t~nondet34, #race~global~0][50], [183#L949-5true, Black: 225#(= |#race~global~0| 0), t_funThread1of3ForFork0InUse, 193#L939-8true, 141#L939-29true, t_funThread2of3ForFork0InUse, 229#true, t_funThread3of3ForFork0InUse, 223#true, 87#L939-16true, Black: 220#(= |ULTIMATE.start_main_~i~1#1| 0)]) [2023-08-29 18:16:37,776 INFO L383 tUnfolder$Statistics]: this new event has 37 ancestors and is cut-off event [2023-08-29 18:16:37,776 INFO L386 tUnfolder$Statistics]: existing Event has 37 ancestors and is cut-off event [2023-08-29 18:16:37,776 INFO L386 tUnfolder$Statistics]: existing Event has 37 ancestors and is cut-off event [2023-08-29 18:16:37,776 INFO L386 tUnfolder$Statistics]: existing Event has 37 ancestors and is cut-off event [2023-08-29 18:16:38,318 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1192] L939-1-->L939-3: Formula: (= |v_#race~global~0_56| 0) InVars {} OutVars{t_funThread3of3ForFork0_#t~nondet32=|v_t_funThread3of3ForFork0_#t~nondet32_7|, #race~global~0=|v_#race~global~0_56|} AuxVars[] AssignedVars[t_funThread3of3ForFork0_#t~nondet32, #race~global~0][76], [225#(= |#race~global~0| 0), 183#L949-5true, t_funThread1of3ForFork0InUse, Black: 223#true, 59#L939-4true, t_funThread2of3ForFork0InUse, 229#true, t_funThread3of3ForFork0InUse, 137#L939-3true, 87#L939-16true, Black: 220#(= |ULTIMATE.start_main_~i~1#1| 0)]) [2023-08-29 18:16:38,319 INFO L383 tUnfolder$Statistics]: this new event has 37 ancestors and is not cut-off event [2023-08-29 18:16:38,319 INFO L386 tUnfolder$Statistics]: existing Event has 37 ancestors and is not cut-off event [2023-08-29 18:16:38,319 INFO L386 tUnfolder$Statistics]: existing Event has 37 ancestors and is not cut-off event [2023-08-29 18:16:38,319 INFO L386 tUnfolder$Statistics]: existing Event has 37 ancestors and is not cut-off event [2023-08-29 18:16:38,324 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1131] L939-16-->L939-17: Formula: (= |v_#race~global~0_10| 0) InVars {} OutVars{#race~global~0=|v_#race~global~0_10|} AuxVars[] AssignedVars[#race~global~0][89], [225#(= |#race~global~0| 0), 183#L949-5true, Black: 223#true, t_funThread1of3ForFork0InUse, t_funThread2of3ForFork0InUse, 229#true, t_funThread3of3ForFork0InUse, 6#L939-3true, 148#L939-17true, 134#L939-4true, Black: 220#(= |ULTIMATE.start_main_~i~1#1| 0)]) [2023-08-29 18:16:38,324 INFO L383 tUnfolder$Statistics]: this new event has 38 ancestors and is cut-off event [2023-08-29 18:16:38,324 INFO L386 tUnfolder$Statistics]: existing Event has 38 ancestors and is cut-off event [2023-08-29 18:16:38,328 INFO L386 tUnfolder$Statistics]: existing Event has 38 ancestors and is cut-off event [2023-08-29 18:16:38,329 INFO L386 tUnfolder$Statistics]: existing Event has 38 ancestors and is cut-off event [2023-08-29 18:16:38,329 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1131] L939-16-->L939-17: Formula: (= |v_#race~global~0_10| 0) InVars {} OutVars{#race~global~0=|v_#race~global~0_10|} AuxVars[] AssignedVars[#race~global~0][89], [225#(= |#race~global~0| 0), 183#L949-5true, t_funThread1of3ForFork0InUse, Black: 223#true, 59#L939-4true, t_funThread2of3ForFork0InUse, 229#true, t_funThread3of3ForFork0InUse, 137#L939-3true, 148#L939-17true, Black: 220#(= |ULTIMATE.start_main_~i~1#1| 0)]) [2023-08-29 18:16:38,329 INFO L383 tUnfolder$Statistics]: this new event has 38 ancestors and is cut-off event [2023-08-29 18:16:38,329 INFO L386 tUnfolder$Statistics]: existing Event has 38 ancestors and is cut-off event [2023-08-29 18:16:38,329 INFO L386 tUnfolder$Statistics]: existing Event has 38 ancestors and is cut-off event [2023-08-29 18:16:38,329 INFO L386 tUnfolder$Statistics]: existing Event has 38 ancestors and is cut-off event [2023-08-29 18:16:38,334 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1131] L939-16-->L939-17: Formula: (= |v_#race~global~0_10| 0) InVars {} OutVars{#race~global~0=|v_#race~global~0_10|} AuxVars[] AssignedVars[#race~global~0][89], [225#(= |#race~global~0| 0), t_funThread1of3ForFork0InUse, Black: 223#true, 59#L939-4true, t_funThread2of3ForFork0InUse, 78#L949-4true, 229#true, t_funThread3of3ForFork0InUse, 148#L939-17true, 134#L939-4true, Black: 220#(= |ULTIMATE.start_main_~i~1#1| 0)]) [2023-08-29 18:16:38,334 INFO L383 tUnfolder$Statistics]: this new event has 38 ancestors and is cut-off event [2023-08-29 18:16:38,334 INFO L386 tUnfolder$Statistics]: existing Event has 38 ancestors and is cut-off event [2023-08-29 18:16:38,334 INFO L386 tUnfolder$Statistics]: existing Event has 38 ancestors and is cut-off event [2023-08-29 18:16:38,334 INFO L386 tUnfolder$Statistics]: existing Event has 38 ancestors and is cut-off event [2023-08-29 18:16:38,739 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1131] L939-16-->L939-17: Formula: (= |v_#race~global~0_10| 0) InVars {} OutVars{#race~global~0=|v_#race~global~0_10|} AuxVars[] AssignedVars[#race~global~0][89], [225#(= |#race~global~0| 0), 183#L949-5true, t_funThread1of3ForFork0InUse, Black: 223#true, 59#L939-4true, t_funThread2of3ForFork0InUse, 229#true, t_funThread3of3ForFork0InUse, 134#L939-4true, 148#L939-17true, Black: 220#(= |ULTIMATE.start_main_~i~1#1| 0)]) [2023-08-29 18:16:38,739 INFO L383 tUnfolder$Statistics]: this new event has 39 ancestors and is cut-off event [2023-08-29 18:16:38,739 INFO L386 tUnfolder$Statistics]: existing Event has 39 ancestors and is cut-off event [2023-08-29 18:16:38,739 INFO L386 tUnfolder$Statistics]: existing Event has 39 ancestors and is cut-off event [2023-08-29 18:16:38,739 INFO L386 tUnfolder$Statistics]: existing Event has 39 ancestors and is cut-off event [2023-08-29 18:16:38,742 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1131] L939-16-->L939-17: Formula: (= |v_#race~global~0_10| 0) InVars {} OutVars{#race~global~0=|v_#race~global~0_10|} AuxVars[] AssignedVars[#race~global~0][89], [183#L949-5true, 225#(= |#race~global~0| 0), t_funThread1of3ForFork0InUse, Black: 223#true, 59#L939-4true, t_funThread2of3ForFork0InUse, 229#true, t_funThread3of3ForFork0InUse, 148#L939-17true, Black: 220#(= |ULTIMATE.start_main_~i~1#1| 0), 209#t_funErr0ASSERT_VIOLATIONDATA_RACEtrue]) [2023-08-29 18:16:38,742 INFO L383 tUnfolder$Statistics]: this new event has 39 ancestors and is cut-off event [2023-08-29 18:16:38,742 INFO L386 tUnfolder$Statistics]: existing Event has 39 ancestors and is cut-off event [2023-08-29 18:16:38,742 INFO L386 tUnfolder$Statistics]: existing Event has 39 ancestors and is cut-off event [2023-08-29 18:16:38,742 INFO L386 tUnfolder$Statistics]: existing Event has 39 ancestors and is cut-off event [2023-08-29 18:16:38,750 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1205] L939-5-->L939-7: Formula: (= (+ |v_t_funThread3of3ForFork0_#t~post33_11| 1) v_~global~0_53) InVars {t_funThread3of3ForFork0_#t~post33=|v_t_funThread3of3ForFork0_#t~post33_11|} OutVars{t_funThread3of3ForFork0_#t~post33=|v_t_funThread3of3ForFork0_#t~post33_11|, t_funThread3of3ForFork0_#t~nondet34=|v_t_funThread3of3ForFork0_#t~nondet34_17|, ~global~0=v_~global~0_53} AuxVars[] AssignedVars[t_funThread3of3ForFork0_#t~nondet34, ~global~0][71], [225#(= |#race~global~0| 0), t_funThread1of3ForFork0InUse, Black: 223#true, 59#L939-4true, t_funThread2of3ForFork0InUse, 229#true, 78#L949-4true, t_funThread3of3ForFork0InUse, 87#L939-16true, 54#L939-7true, Black: 220#(= |ULTIMATE.start_main_~i~1#1| 0)]) [2023-08-29 18:16:38,750 INFO L383 tUnfolder$Statistics]: this new event has 39 ancestors and is cut-off event [2023-08-29 18:16:38,750 INFO L386 tUnfolder$Statistics]: existing Event has 39 ancestors and is cut-off event [2023-08-29 18:16:38,750 INFO L386 tUnfolder$Statistics]: existing Event has 39 ancestors and is cut-off event [2023-08-29 18:16:38,750 INFO L386 tUnfolder$Statistics]: existing Event has 39 ancestors and is cut-off event [2023-08-29 18:16:38,786 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1131] L939-16-->L939-17: Formula: (= |v_#race~global~0_10| 0) InVars {} OutVars{#race~global~0=|v_#race~global~0_10|} AuxVars[] AssignedVars[#race~global~0][89], [225#(= |#race~global~0| 0), Black: 223#true, t_funThread1of3ForFork0InUse, 59#L939-4true, t_funThread2of3ForFork0InUse, 229#true, t_funThread3of3ForFork0InUse, 148#L939-17true, 134#L939-4true, 71#ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACEtrue, Black: 220#(= |ULTIMATE.start_main_~i~1#1| 0)]) [2023-08-29 18:16:38,786 INFO L383 tUnfolder$Statistics]: this new event has 39 ancestors and is cut-off event [2023-08-29 18:16:38,786 INFO L386 tUnfolder$Statistics]: existing Event has 39 ancestors and is cut-off event [2023-08-29 18:16:38,786 INFO L386 tUnfolder$Statistics]: existing Event has 39 ancestors and is cut-off event [2023-08-29 18:16:38,787 INFO L386 tUnfolder$Statistics]: existing Event has 39 ancestors and is cut-off event [2023-08-29 18:16:39,368 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1131] L939-16-->L939-17: Formula: (= |v_#race~global~0_10| 0) InVars {} OutVars{#race~global~0=|v_#race~global~0_10|} AuxVars[] AssignedVars[#race~global~0][89], [225#(= |#race~global~0| 0), t_funThread1of3ForFork0InUse, 185#L928-1true, Black: 223#true, 59#L939-4true, t_funThread2of3ForFork0InUse, 229#true, t_funThread3of3ForFork0InUse, 148#L939-17true, 134#L939-4true, Black: 220#(= |ULTIMATE.start_main_~i~1#1| 0)]) [2023-08-29 18:16:39,368 INFO L383 tUnfolder$Statistics]: this new event has 40 ancestors and is cut-off event [2023-08-29 18:16:39,368 INFO L386 tUnfolder$Statistics]: existing Event has 40 ancestors and is cut-off event [2023-08-29 18:16:39,368 INFO L386 tUnfolder$Statistics]: existing Event has 40 ancestors and is cut-off event [2023-08-29 18:16:39,368 INFO L386 tUnfolder$Statistics]: existing Event has 40 ancestors and is cut-off event [2023-08-29 18:16:39,377 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1195] L939-6-->L939-8: Formula: (= |v_t_funThread2of3ForFork0_#t~nondet34_13| |v_#race~global~0_58|) InVars {} OutVars{t_funThread2of3ForFork0_#t~nondet34=|v_t_funThread2of3ForFork0_#t~nondet34_13|, #race~global~0=|v_#race~global~0_58|} AuxVars[] AssignedVars[t_funThread2of3ForFork0_#t~nondet34, #race~global~0][50], [183#L949-5true, Black: 225#(= |#race~global~0| 0), t_funThread1of3ForFork0InUse, 193#L939-8true, t_funThread2of3ForFork0InUse, 229#true, t_funThread3of3ForFork0InUse, 137#L939-3true, 87#L939-16true, 223#true, Black: 220#(= |ULTIMATE.start_main_~i~1#1| 0)]) [2023-08-29 18:16:39,377 INFO L383 tUnfolder$Statistics]: this new event has 40 ancestors and is cut-off event [2023-08-29 18:16:39,377 INFO L386 tUnfolder$Statistics]: existing Event has 40 ancestors and is cut-off event [2023-08-29 18:16:39,377 INFO L386 tUnfolder$Statistics]: existing Event has 40 ancestors and is cut-off event [2023-08-29 18:16:39,377 INFO L386 tUnfolder$Statistics]: existing Event has 40 ancestors and is cut-off event [2023-08-29 18:16:39,378 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1205] L939-5-->L939-7: Formula: (= (+ |v_t_funThread3of3ForFork0_#t~post33_11| 1) v_~global~0_53) InVars {t_funThread3of3ForFork0_#t~post33=|v_t_funThread3of3ForFork0_#t~post33_11|} OutVars{t_funThread3of3ForFork0_#t~post33=|v_t_funThread3of3ForFork0_#t~post33_11|, t_funThread3of3ForFork0_#t~nondet34=|v_t_funThread3of3ForFork0_#t~nondet34_17|, ~global~0=v_~global~0_53} AuxVars[] AssignedVars[t_funThread3of3ForFork0_#t~nondet34, ~global~0][71], [225#(= |#race~global~0| 0), 183#L949-5true, Black: 223#true, t_funThread1of3ForFork0InUse, 59#L939-4true, t_funThread2of3ForFork0InUse, 229#true, t_funThread3of3ForFork0InUse, 87#L939-16true, 54#L939-7true, Black: 220#(= |ULTIMATE.start_main_~i~1#1| 0)]) [2023-08-29 18:16:39,378 INFO L383 tUnfolder$Statistics]: this new event has 40 ancestors and is cut-off event [2023-08-29 18:16:39,378 INFO L386 tUnfolder$Statistics]: existing Event has 40 ancestors and is cut-off event [2023-08-29 18:16:39,378 INFO L386 tUnfolder$Statistics]: existing Event has 40 ancestors and is cut-off event [2023-08-29 18:16:39,378 INFO L386 tUnfolder$Statistics]: existing Event has 40 ancestors and is cut-off event [2023-08-29 18:16:39,391 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1195] L939-6-->L939-8: Formula: (= |v_t_funThread2of3ForFork0_#t~nondet34_13| |v_#race~global~0_58|) InVars {} OutVars{t_funThread2of3ForFork0_#t~nondet34=|v_t_funThread2of3ForFork0_#t~nondet34_13|, #race~global~0=|v_#race~global~0_58|} AuxVars[] AssignedVars[t_funThread2of3ForFork0_#t~nondet34, #race~global~0][50], [Black: 225#(= |#race~global~0| 0), t_funThread1of3ForFork0InUse, 193#L939-8true, t_funThread2of3ForFork0InUse, 78#L949-4true, 229#true, t_funThread3of3ForFork0InUse, 134#L939-4true, 87#L939-16true, 223#true, Black: 220#(= |ULTIMATE.start_main_~i~1#1| 0)]) [2023-08-29 18:16:39,391 INFO L383 tUnfolder$Statistics]: this new event has 40 ancestors and is cut-off event [2023-08-29 18:16:39,391 INFO L386 tUnfolder$Statistics]: existing Event has 40 ancestors and is cut-off event [2023-08-29 18:16:39,391 INFO L386 tUnfolder$Statistics]: existing Event has 40 ancestors and is cut-off event [2023-08-29 18:16:39,391 INFO L386 tUnfolder$Statistics]: existing Event has 40 ancestors and is cut-off event [2023-08-29 18:16:39,858 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1131] L939-16-->L939-17: Formula: (= |v_#race~global~0_10| 0) InVars {} OutVars{#race~global~0=|v_#race~global~0_10|} AuxVars[] AssignedVars[#race~global~0][89], [225#(= |#race~global~0| 0), t_funThread1of3ForFork0InUse, Black: 223#true, 59#L939-4true, t_funThread2of3ForFork0InUse, 229#true, t_funThread3of3ForFork0InUse, 22#L949-7true, 148#L939-17true, 134#L939-4true, Black: 220#(= |ULTIMATE.start_main_~i~1#1| 0)]) [2023-08-29 18:16:39,858 INFO L383 tUnfolder$Statistics]: this new event has 41 ancestors and is cut-off event [2023-08-29 18:16:39,858 INFO L386 tUnfolder$Statistics]: existing Event has 41 ancestors and is cut-off event [2023-08-29 18:16:39,858 INFO L386 tUnfolder$Statistics]: existing Event has 41 ancestors and is cut-off event [2023-08-29 18:16:39,858 INFO L386 tUnfolder$Statistics]: existing Event has 41 ancestors and is cut-off event [2023-08-29 18:16:40,063 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1195] L939-6-->L939-8: Formula: (= |v_t_funThread2of3ForFork0_#t~nondet34_13| |v_#race~global~0_58|) InVars {} OutVars{t_funThread2of3ForFork0_#t~nondet34=|v_t_funThread2of3ForFork0_#t~nondet34_13|, #race~global~0=|v_#race~global~0_58|} AuxVars[] AssignedVars[t_funThread2of3ForFork0_#t~nondet34, #race~global~0][50], [183#L949-5true, Black: 225#(= |#race~global~0| 0), t_funThread1of3ForFork0InUse, 193#L939-8true, t_funThread2of3ForFork0InUse, 229#true, t_funThread3of3ForFork0InUse, 134#L939-4true, 87#L939-16true, 223#true, Black: 220#(= |ULTIMATE.start_main_~i~1#1| 0)]) [2023-08-29 18:16:40,063 INFO L383 tUnfolder$Statistics]: this new event has 41 ancestors and is cut-off event [2023-08-29 18:16:40,063 INFO L386 tUnfolder$Statistics]: existing Event has 41 ancestors and is cut-off event [2023-08-29 18:16:40,063 INFO L386 tUnfolder$Statistics]: existing Event has 41 ancestors and is cut-off event [2023-08-29 18:16:40,063 INFO L386 tUnfolder$Statistics]: existing Event has 41 ancestors and is cut-off event [2023-08-29 18:16:40,064 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1195] L939-6-->L939-8: Formula: (= |v_t_funThread2of3ForFork0_#t~nondet34_13| |v_#race~global~0_58|) InVars {} OutVars{t_funThread2of3ForFork0_#t~nondet34=|v_t_funThread2of3ForFork0_#t~nondet34_13|, #race~global~0=|v_#race~global~0_58|} AuxVars[] AssignedVars[t_funThread2of3ForFork0_#t~nondet34, #race~global~0][50], [183#L949-5true, Black: 225#(= |#race~global~0| 0), t_funThread1of3ForFork0InUse, 193#L939-8true, t_funThread2of3ForFork0InUse, 229#true, t_funThread3of3ForFork0InUse, 87#L939-16true, 223#true, Black: 220#(= |ULTIMATE.start_main_~i~1#1| 0), 209#t_funErr0ASSERT_VIOLATIONDATA_RACEtrue]) [2023-08-29 18:16:40,064 INFO L383 tUnfolder$Statistics]: this new event has 41 ancestors and is cut-off event [2023-08-29 18:16:40,064 INFO L386 tUnfolder$Statistics]: existing Event has 41 ancestors and is cut-off event [2023-08-29 18:16:40,064 INFO L386 tUnfolder$Statistics]: existing Event has 41 ancestors and is cut-off event [2023-08-29 18:16:40,064 INFO L386 tUnfolder$Statistics]: existing Event has 41 ancestors and is cut-off event [2023-08-29 18:16:40,143 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1195] L939-6-->L939-8: Formula: (= |v_t_funThread2of3ForFork0_#t~nondet34_13| |v_#race~global~0_58|) InVars {} OutVars{t_funThread2of3ForFork0_#t~nondet34=|v_t_funThread2of3ForFork0_#t~nondet34_13|, #race~global~0=|v_#race~global~0_58|} AuxVars[] AssignedVars[t_funThread2of3ForFork0_#t~nondet34, #race~global~0][50], [Black: 225#(= |#race~global~0| 0), t_funThread1of3ForFork0InUse, 193#L939-8true, t_funThread2of3ForFork0InUse, 229#true, t_funThread3of3ForFork0InUse, 134#L939-4true, 71#ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACEtrue, 87#L939-16true, 223#true, Black: 220#(= |ULTIMATE.start_main_~i~1#1| 0)]) [2023-08-29 18:16:40,143 INFO L383 tUnfolder$Statistics]: this new event has 41 ancestors and is cut-off event [2023-08-29 18:16:40,143 INFO L386 tUnfolder$Statistics]: existing Event has 41 ancestors and is cut-off event [2023-08-29 18:16:40,143 INFO L386 tUnfolder$Statistics]: existing Event has 41 ancestors and is cut-off event [2023-08-29 18:16:40,143 INFO L386 tUnfolder$Statistics]: existing Event has 41 ancestors and is cut-off event [2023-08-29 18:16:40,667 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1195] L939-6-->L939-8: Formula: (= |v_t_funThread2of3ForFork0_#t~nondet34_13| |v_#race~global~0_58|) InVars {} OutVars{t_funThread2of3ForFork0_#t~nondet34=|v_t_funThread2of3ForFork0_#t~nondet34_13|, #race~global~0=|v_#race~global~0_58|} AuxVars[] AssignedVars[t_funThread2of3ForFork0_#t~nondet34, #race~global~0][50], [Black: 225#(= |#race~global~0| 0), t_funThread1of3ForFork0InUse, 185#L928-1true, 193#L939-8true, t_funThread2of3ForFork0InUse, 229#true, t_funThread3of3ForFork0InUse, 134#L939-4true, 87#L939-16true, 223#true, Black: 220#(= |ULTIMATE.start_main_~i~1#1| 0)]) [2023-08-29 18:16:40,667 INFO L383 tUnfolder$Statistics]: this new event has 42 ancestors and is cut-off event [2023-08-29 18:16:40,667 INFO L386 tUnfolder$Statistics]: existing Event has 42 ancestors and is cut-off event [2023-08-29 18:16:40,667 INFO L386 tUnfolder$Statistics]: existing Event has 42 ancestors and is cut-off event [2023-08-29 18:16:40,667 INFO L386 tUnfolder$Statistics]: existing Event has 42 ancestors and is cut-off event [2023-08-29 18:16:41,417 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1195] L939-6-->L939-8: Formula: (= |v_t_funThread2of3ForFork0_#t~nondet34_13| |v_#race~global~0_58|) InVars {} OutVars{t_funThread2of3ForFork0_#t~nondet34=|v_t_funThread2of3ForFork0_#t~nondet34_13|, #race~global~0=|v_#race~global~0_58|} AuxVars[] AssignedVars[t_funThread2of3ForFork0_#t~nondet34, #race~global~0][50], [Black: 225#(= |#race~global~0| 0), t_funThread1of3ForFork0InUse, 193#L939-8true, t_funThread2of3ForFork0InUse, 229#true, t_funThread3of3ForFork0InUse, 22#L949-7true, 134#L939-4true, 223#true, 87#L939-16true, Black: 220#(= |ULTIMATE.start_main_~i~1#1| 0)]) [2023-08-29 18:16:41,418 INFO L383 tUnfolder$Statistics]: this new event has 43 ancestors and is cut-off event [2023-08-29 18:16:41,418 INFO L386 tUnfolder$Statistics]: existing Event has 43 ancestors and is cut-off event [2023-08-29 18:16:41,418 INFO L386 tUnfolder$Statistics]: existing Event has 43 ancestors and is cut-off event [2023-08-29 18:16:41,418 INFO L386 tUnfolder$Statistics]: existing Event has 43 ancestors and is cut-off event [2023-08-29 18:16:44,628 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1131] L939-16-->L939-17: Formula: (= |v_#race~global~0_10| 0) InVars {} OutVars{#race~global~0=|v_#race~global~0_10|} AuxVars[] AssignedVars[#race~global~0][89], [225#(= |#race~global~0| 0), 183#L949-5true, t_funThread1of3ForFork0InUse, Black: 223#true, t_funThread2of3ForFork0InUse, 229#true, t_funThread3of3ForFork0InUse, 47#t_funErr2ASSERT_VIOLATIONDATA_RACEtrue, 134#L939-4true, 148#L939-17true, Black: 220#(= |ULTIMATE.start_main_~i~1#1| 0)]) [2023-08-29 18:16:44,628 INFO L383 tUnfolder$Statistics]: this new event has 47 ancestors and is cut-off event [2023-08-29 18:16:44,628 INFO L386 tUnfolder$Statistics]: existing Event has 47 ancestors and is cut-off event [2023-08-29 18:16:44,628 INFO L386 tUnfolder$Statistics]: existing Event has 47 ancestors and is cut-off event [2023-08-29 18:16:44,628 INFO L386 tUnfolder$Statistics]: existing Event has 47 ancestors and is cut-off event [2023-08-29 18:16:57,711 INFO L130 PetriNetUnfolder]: 250922/391605 cut-off events. [2023-08-29 18:16:57,711 INFO L131 PetriNetUnfolder]: For 193210/196101 co-relation queries the response was YES. [2023-08-29 18:16:58,630 INFO L83 FinitePrefix]: Finished finitePrefix Result has 945062 conditions, 391605 events. 250922/391605 cut-off events. For 193210/196101 co-relation queries the response was YES. Maximal size of possible extension queue 8619. Compared 3734130 event pairs, 173745 based on Foata normal form. 121/348514 useless extension candidates. Maximal degree in co-relation 259115. Up to 322317 conditions per place. [2023-08-29 18:17:00,021 INFO L137 encePairwiseOnDemand]: 376/388 looper letters, 100 selfloop transitions, 21 changer transitions 0/166 dead transitions. [2023-08-29 18:17:00,021 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 166 transitions, 828 flow [2023-08-29 18:17:00,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 18:17:00,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 18:17:00,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 668 transitions. [2023-08-29 18:17:00,023 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5738831615120275 [2023-08-29 18:17:00,023 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 668 transitions. [2023-08-29 18:17:00,023 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 668 transitions. [2023-08-29 18:17:00,023 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:17:00,024 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 668 transitions. [2023-08-29 18:17:00,026 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 222.66666666666666) internal successors, (668), 3 states have internal predecessors, (668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:17:00,029 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 388.0) internal successors, (1552), 4 states have internal predecessors, (1552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:17:00,030 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 388.0) internal successors, (1552), 4 states have internal predecessors, (1552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:17:00,030 INFO L175 Difference]: Start difference. First operand has 103 places, 115 transitions, 404 flow. Second operand 3 states and 668 transitions. [2023-08-29 18:17:00,030 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 166 transitions, 828 flow [2023-08-29 18:17:00,276 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 166 transitions, 770 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 18:17:00,278 INFO L231 Difference]: Finished difference. Result has 104 places, 134 transitions, 541 flow [2023-08-29 18:17:00,278 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=388, PETRI_DIFFERENCE_MINUEND_FLOW=364, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=541, PETRI_PLACES=104, PETRI_TRANSITIONS=134} [2023-08-29 18:17:00,278 INFO L281 CegarLoopForPetriNet]: 98 programPoint places, 6 predicate places. [2023-08-29 18:17:00,279 INFO L495 AbstractCegarLoop]: Abstraction has has 104 places, 134 transitions, 541 flow [2023-08-29 18:17:00,279 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 192.33333333333334) internal successors, (577), 3 states have internal predecessors, (577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:17:00,279 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:17:00,279 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1] [2023-08-29 18:17:00,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-29 18:17:00,279 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 16 more)] === [2023-08-29 18:17:00,280 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:17:00,280 INFO L85 PathProgramCache]: Analyzing trace with hash -1543633740, now seen corresponding path program 1 times [2023-08-29 18:17:00,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:17:00,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386726237] [2023-08-29 18:17:00,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:17:00,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:17:00,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-29 18:17:00,295 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-29 18:17:00,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-29 18:17:00,319 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-29 18:17:00,319 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-29 18:17:00,319 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 19 remaining) [2023-08-29 18:17:00,320 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (17 of 19 remaining) [2023-08-29 18:17:00,320 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (16 of 19 remaining) [2023-08-29 18:17:00,320 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (15 of 19 remaining) [2023-08-29 18:17:00,320 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (14 of 19 remaining) [2023-08-29 18:17:00,320 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (13 of 19 remaining) [2023-08-29 18:17:00,320 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (12 of 19 remaining) [2023-08-29 18:17:00,320 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (11 of 19 remaining) [2023-08-29 18:17:00,320 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (10 of 19 remaining) [2023-08-29 18:17:00,321 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (9 of 19 remaining) [2023-08-29 18:17:00,321 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (8 of 19 remaining) [2023-08-29 18:17:00,321 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 19 remaining) [2023-08-29 18:17:00,321 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (6 of 19 remaining) [2023-08-29 18:17:00,321 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (5 of 19 remaining) [2023-08-29 18:17:00,321 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 19 remaining) [2023-08-29 18:17:00,321 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 19 remaining) [2023-08-29 18:17:00,321 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (2 of 19 remaining) [2023-08-29 18:17:00,322 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 19 remaining) [2023-08-29 18:17:00,322 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 19 remaining) [2023-08-29 18:17:00,322 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-29 18:17:00,322 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-08-29 18:17:00,323 WARN L233 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-29 18:17:00,323 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2023-08-29 18:17:00,341 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-08-29 18:17:00,343 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 256 places, 283 transitions, 610 flow [2023-08-29 18:17:00,398 INFO L130 PetriNetUnfolder]: 96/747 cut-off events. [2023-08-29 18:17:00,398 INFO L131 PetriNetUnfolder]: For 48/48 co-relation queries the response was YES. [2023-08-29 18:17:00,403 INFO L83 FinitePrefix]: Finished finitePrefix Result has 802 conditions, 747 events. 96/747 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 3118 event pairs, 6 based on Foata normal form. 0/614 useless extension candidates. Maximal degree in co-relation 510. Up to 32 conditions per place. [2023-08-29 18:17:00,403 INFO L82 GeneralOperation]: Start removeDead. Operand has 256 places, 283 transitions, 610 flow [2023-08-29 18:17:00,406 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 256 places, 283 transitions, 610 flow [2023-08-29 18:17:00,406 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 18:17:00,406 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 256 places, 283 transitions, 610 flow [2023-08-29 18:17:00,406 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 256 places, 283 transitions, 610 flow [2023-08-29 18:17:00,406 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 256 places, 283 transitions, 610 flow [2023-08-29 18:17:00,460 INFO L130 PetriNetUnfolder]: 96/747 cut-off events. [2023-08-29 18:17:00,461 INFO L131 PetriNetUnfolder]: For 48/48 co-relation queries the response was YES. [2023-08-29 18:17:00,466 INFO L83 FinitePrefix]: Finished finitePrefix Result has 802 conditions, 747 events. 96/747 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 3118 event pairs, 6 based on Foata normal form. 0/614 useless extension candidates. Maximal degree in co-relation 510. Up to 32 conditions per place. [2023-08-29 18:17:00,480 INFO L119 LiptonReduction]: Number of co-enabled transitions 45936 [2023-08-29 18:17:03,348 INFO L134 LiptonReduction]: Checked pairs total: 198327 [2023-08-29 18:17:03,349 INFO L136 LiptonReduction]: Total number of compositions: 168 [2023-08-29 18:17:03,350 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 18:17:03,350 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;@552fbe57, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 18:17:03,350 INFO L358 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2023-08-29 18:17:03,351 INFO L130 PetriNetUnfolder]: 1/10 cut-off events. [2023-08-29 18:17:03,352 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 18:17:03,352 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:17:03,352 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-29 18:17:03,352 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 20 more)] === [2023-08-29 18:17:03,352 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:17:03,352 INFO L85 PathProgramCache]: Analyzing trace with hash 56699864, now seen corresponding path program 1 times [2023-08-29 18:17:03,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:17:03,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889191038] [2023-08-29 18:17:03,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:17:03,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:17:03,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:17:03,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 18:17:03,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:17:03,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889191038] [2023-08-29 18:17:03,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [889191038] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:17:03,396 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:17:03,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 18:17:03,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005716799] [2023-08-29 18:17:03,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:17:03,397 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 18:17:03,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:17:03,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 18:17:03,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 18:17:03,404 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 241 out of 451 [2023-08-29 18:17:03,405 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 146 transitions, 336 flow. Second operand has 3 states, 3 states have (on average 242.33333333333334) internal successors, (727), 3 states have internal predecessors, (727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:17:03,405 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:17:03,405 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 241 of 451 [2023-08-29 18:17:03,405 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:18:11,096 INFO L130 PetriNetUnfolder]: 683784/1019582 cut-off events. [2023-08-29 18:18:11,097 INFO L131 PetriNetUnfolder]: For 25170/25170 co-relation queries the response was YES. [2023-08-29 18:18:14,046 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1915095 conditions, 1019582 events. 683784/1019582 cut-off events. For 25170/25170 co-relation queries the response was YES. Maximal size of possible extension queue 19106. Compared 10155367 event pairs, 631204 based on Foata normal form. 136086/1060374 useless extension candidates. Maximal degree in co-relation 450108. Up to 880909 conditions per place. [2023-08-29 18:18:18,540 INFO L137 encePairwiseOnDemand]: 420/451 looper letters, 71 selfloop transitions, 2 changer transitions 0/131 dead transitions. [2023-08-29 18:18:18,540 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 131 transitions, 452 flow [2023-08-29 18:18:18,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 18:18:18,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 18:18:18,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 831 transitions. [2023-08-29 18:18:18,568 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.614190687361419 [2023-08-29 18:18:18,568 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 831 transitions. [2023-08-29 18:18:18,569 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 831 transitions. [2023-08-29 18:18:18,569 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:18:18,569 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 831 transitions. [2023-08-29 18:18:18,570 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 277.0) internal successors, (831), 3 states have internal predecessors, (831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:18:18,572 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 451.0) internal successors, (1804), 4 states have internal predecessors, (1804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:18:18,572 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 451.0) internal successors, (1804), 4 states have internal predecessors, (1804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:18:18,572 INFO L175 Difference]: Start difference. First operand has 124 places, 146 transitions, 336 flow. Second operand 3 states and 831 transitions. [2023-08-29 18:18:18,572 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 131 transitions, 452 flow [2023-08-29 18:18:18,612 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 131 transitions, 452 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 18:18:18,614 INFO L231 Difference]: Finished difference. Result has 126 places, 120 transitions, 296 flow [2023-08-29 18:18:18,614 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=451, PETRI_DIFFERENCE_MINUEND_FLOW=282, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=296, PETRI_PLACES=126, PETRI_TRANSITIONS=120} [2023-08-29 18:18:18,614 INFO L281 CegarLoopForPetriNet]: 124 programPoint places, 2 predicate places. [2023-08-29 18:18:18,615 INFO L495 AbstractCegarLoop]: Abstraction has has 126 places, 120 transitions, 296 flow [2023-08-29 18:18:18,616 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 242.33333333333334) internal successors, (727), 3 states have internal predecessors, (727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:18:18,616 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:18:18,616 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:18:18,616 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-29 18:18:18,616 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 20 more)] === [2023-08-29 18:18:18,616 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:18:18,616 INFO L85 PathProgramCache]: Analyzing trace with hash -1335459256, now seen corresponding path program 1 times [2023-08-29 18:18:18,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:18:18,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702458873] [2023-08-29 18:18:18,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:18:18,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:18:18,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:18:18,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 18:18:18,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:18:18,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702458873] [2023-08-29 18:18:18,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1702458873] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:18:18,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:18:18,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 18:18:18,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605520272] [2023-08-29 18:18:18,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:18:18,664 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 18:18:18,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:18:18,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 18:18:18,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 18:18:18,716 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 210 out of 451 [2023-08-29 18:18:18,716 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 120 transitions, 296 flow. Second operand has 3 states, 3 states have (on average 212.33333333333334) internal successors, (637), 3 states have internal predecessors, (637), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:18:18,716 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:18:18,716 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 210 of 451 [2023-08-29 18:18:18,717 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand