./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_06-cond_racing1.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_06-cond_racing1.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 830cb16a3cbc120e059f0ed7638e33ed20360a11f425952cf536aa3d659b86fc --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 18:14:57,124 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 18:14:57,126 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 18:14:57,173 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 18:14:57,174 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 18:14:57,175 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 18:14:57,176 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 18:14:57,177 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 18:14:57,179 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 18:14:57,180 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 18:14:57,181 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 18:14:57,182 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 18:14:57,182 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 18:14:57,183 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 18:14:57,184 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 18:14:57,185 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 18:14:57,186 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 18:14:57,187 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 18:14:57,188 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 18:14:57,190 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 18:14:57,195 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 18:14:57,199 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 18:14:57,199 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 18:14:57,200 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 18:14:57,203 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 18:14:57,204 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 18:14:57,204 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 18:14:57,209 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 18:14:57,209 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 18:14:57,210 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 18:14:57,211 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 18:14:57,211 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 18:14:57,212 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 18:14:57,213 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 18:14:57,214 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 18:14:57,214 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 18:14:57,215 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 18:14:57,215 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 18:14:57,215 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 18:14:57,216 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 18:14:57,217 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 18:14:57,218 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-29 18:14:57,246 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 18:14:57,247 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 18:14:57,248 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 18:14:57,248 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 18:14:57,249 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 18:14:57,249 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 18:14:57,250 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 18:14:57,250 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 18:14:57,251 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 18:14:57,251 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 18:14:57,252 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 18:14:57,252 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 18:14:57,252 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 18:14:57,252 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 18:14:57,252 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 18:14:57,252 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-29 18:14:57,253 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 18:14:57,253 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-29 18:14:57,253 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-29 18:14:57,253 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 18:14:57,253 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-29 18:14:57,254 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 18:14:57,254 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-29 18:14:57,254 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 18:14:57,254 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 18:14:57,254 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 18:14:57,255 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 18:14:57,255 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 18:14:57,255 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 18:14:57,255 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-29 18:14:57,255 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 18:14:57,256 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 18:14:57,256 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 18:14:57,256 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-29 18:14:57,256 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 18:14:57,256 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 18:14:57,257 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 18:14:57,257 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 830cb16a3cbc120e059f0ed7638e33ed20360a11f425952cf536aa3d659b86fc Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-29 18:14:57,534 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 18:14:57,565 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 18:14:57,567 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 18:14:57,568 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 18:14:57,568 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 18:14:57,569 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_06-cond_racing1.i [2023-08-29 18:14:58,617 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 18:14:58,849 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 18:14:58,850 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_06-cond_racing1.i [2023-08-29 18:14:58,863 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c203ffe7/9a7e6ca9ce984a5caaa163c6fe736dd4/FLAG377aec73e [2023-08-29 18:14:58,875 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c203ffe7/9a7e6ca9ce984a5caaa163c6fe736dd4 [2023-08-29 18:14:58,877 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 18:14:58,878 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 18:14:58,879 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 18:14:58,880 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 18:14:58,886 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 18:14:58,887 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 06:14:58" (1/1) ... [2023-08-29 18:14:58,888 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3bb322d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:14:58, skipping insertion in model container [2023-08-29 18:14:58,888 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 06:14:58" (1/1) ... [2023-08-29 18:14:58,893 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 18:14:58,940 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 18:14:59,348 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_06-cond_racing1.i[41322,41335] [2023-08-29 18:14:59,378 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 18:14:59,392 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 18:14:59,427 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_06-cond_racing1.i[41322,41335] [2023-08-29 18:14:59,447 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 18:14:59,529 INFO L208 MainTranslator]: Completed translation [2023-08-29 18:14:59,530 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:14:59 WrapperNode [2023-08-29 18:14:59,530 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 18:14:59,531 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 18:14:59,531 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 18:14:59,532 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 18:14:59,537 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:14:59" (1/1) ... [2023-08-29 18:14:59,567 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:14:59" (1/1) ... [2023-08-29 18:14:59,594 INFO L138 Inliner]: procedures = 270, calls = 36, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 96 [2023-08-29 18:14:59,595 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 18:14:59,596 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 18:14:59,597 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 18:14:59,597 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 18:14:59,604 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:14:59" (1/1) ... [2023-08-29 18:14:59,604 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:14:59" (1/1) ... [2023-08-29 18:14:59,621 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:14:59" (1/1) ... [2023-08-29 18:14:59,622 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:14:59" (1/1) ... [2023-08-29 18:14:59,627 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:14:59" (1/1) ... [2023-08-29 18:14:59,637 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:14:59" (1/1) ... [2023-08-29 18:14:59,640 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:14:59" (1/1) ... [2023-08-29 18:14:59,647 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:14:59" (1/1) ... [2023-08-29 18:14:59,649 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 18:14:59,650 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 18:14:59,650 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 18:14:59,650 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 18:14:59,651 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:14:59" (1/1) ... [2023-08-29 18:14:59,659 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 18:14:59,672 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 18:14:59,690 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 18:14:59,702 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 18:14:59,726 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 18:14:59,727 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 18:14:59,727 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-29 18:14:59,727 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-29 18:14:59,727 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-29 18:14:59,727 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-29 18:14:59,728 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-29 18:14:59,728 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-29 18:14:59,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-29 18:14:59,728 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 18:14:59,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 18:14:59,729 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 18:14:59,832 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 18:14:59,834 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 18:15:00,077 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 18:15:00,084 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 18:15:00,084 INFO L302 CfgBuilder]: Removed 10 assume(true) statements. [2023-08-29 18:15:00,086 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 06:15:00 BoogieIcfgContainer [2023-08-29 18:15:00,086 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 18:15:00,088 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 18:15:00,088 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 18:15:00,091 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 18:15:00,091 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 06:14:58" (1/3) ... [2023-08-29 18:15:00,092 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@613cbc41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 06:15:00, skipping insertion in model container [2023-08-29 18:15:00,092 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:14:59" (2/3) ... [2023-08-29 18:15:00,092 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@613cbc41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 06:15:00, skipping insertion in model container [2023-08-29 18:15:00,092 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 06:15:00" (3/3) ... [2023-08-29 18:15:00,093 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_06-cond_racing1.i [2023-08-29 18:15:00,100 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-29 18:15:00,109 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 18:15:00,109 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-08-29 18:15:00,109 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 18:15:00,162 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-29 18:15:00,200 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 131 places, 143 transitions, 294 flow [2023-08-29 18:15:00,267 INFO L130 PetriNetUnfolder]: 23/193 cut-off events. [2023-08-29 18:15:00,267 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-29 18:15:00,275 INFO L83 FinitePrefix]: Finished finitePrefix Result has 199 conditions, 193 events. 23/193 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 540 event pairs, 0 based on Foata normal form. 0/159 useless extension candidates. Maximal degree in co-relation 99. Up to 6 conditions per place. [2023-08-29 18:15:00,275 INFO L82 GeneralOperation]: Start removeDead. Operand has 131 places, 143 transitions, 294 flow [2023-08-29 18:15:00,279 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 131 places, 143 transitions, 294 flow [2023-08-29 18:15:00,282 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 18:15:00,290 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 131 places, 143 transitions, 294 flow [2023-08-29 18:15:00,292 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 131 places, 143 transitions, 294 flow [2023-08-29 18:15:00,293 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 131 places, 143 transitions, 294 flow [2023-08-29 18:15:00,323 INFO L130 PetriNetUnfolder]: 23/193 cut-off events. [2023-08-29 18:15:00,323 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-29 18:15:00,325 INFO L83 FinitePrefix]: Finished finitePrefix Result has 199 conditions, 193 events. 23/193 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 540 event pairs, 0 based on Foata normal form. 0/159 useless extension candidates. Maximal degree in co-relation 99. Up to 6 conditions per place. [2023-08-29 18:15:00,328 INFO L119 LiptonReduction]: Number of co-enabled transitions 4928 [2023-08-29 18:15:03,536 INFO L134 LiptonReduction]: Checked pairs total: 11735 [2023-08-29 18:15:03,536 INFO L136 LiptonReduction]: Total number of compositions: 113 [2023-08-29 18:15:03,547 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 18:15:03,552 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;@64aaa5e4, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 18:15:03,553 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2023-08-29 18:15:03,556 INFO L130 PetriNetUnfolder]: 1/10 cut-off events. [2023-08-29 18:15:03,556 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 18:15:03,556 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:15:03,556 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-29 18:15:03,557 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 18:15:03,560 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:15:03,561 INFO L85 PathProgramCache]: Analyzing trace with hash 16588314, now seen corresponding path program 1 times [2023-08-29 18:15:03,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:15:03,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525257989] [2023-08-29 18:15:03,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:15:03,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:15:03,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:15:03,828 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 18:15:03,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:15:03,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525257989] [2023-08-29 18:15:03,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1525257989] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:15:03,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:15:03,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 18:15:03,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340116868] [2023-08-29 18:15:03,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:15:03,838 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 18:15:03,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:15:03,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 18:15:03,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 18:15:03,889 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 256 [2023-08-29 18:15:03,892 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 49 transitions, 106 flow. Second operand has 3 states, 3 states have (on average 126.33333333333333) internal successors, (379), 3 states have internal predecessors, (379), 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 18:15:03,893 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:15:03,893 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 256 [2023-08-29 18:15:03,894 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:15:03,992 INFO L130 PetriNetUnfolder]: 133/343 cut-off events. [2023-08-29 18:15:03,992 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-29 18:15:03,994 INFO L83 FinitePrefix]: Finished finitePrefix Result has 644 conditions, 343 events. 133/343 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1662 event pairs, 0 based on Foata normal form. 22/308 useless extension candidates. Maximal degree in co-relation 598. Up to 268 conditions per place. [2023-08-29 18:15:03,996 INFO L137 encePairwiseOnDemand]: 243/256 looper letters, 36 selfloop transitions, 2 changer transitions 2/53 dead transitions. [2023-08-29 18:15:03,996 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 53 transitions, 194 flow [2023-08-29 18:15:03,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 18:15:03,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 18:15:04,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 432 transitions. [2023-08-29 18:15:04,009 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5625 [2023-08-29 18:15:04,009 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 432 transitions. [2023-08-29 18:15:04,010 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 432 transitions. [2023-08-29 18:15:04,011 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:15:04,013 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 432 transitions. [2023-08-29 18:15:04,017 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 144.0) internal successors, (432), 3 states have internal predecessors, (432), 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 18:15:04,020 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 256.0) internal successors, (1024), 4 states have internal predecessors, (1024), 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 18:15:04,021 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 256.0) internal successors, (1024), 4 states have internal predecessors, (1024), 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 18:15:04,022 INFO L175 Difference]: Start difference. First operand has 42 places, 49 transitions, 106 flow. Second operand 3 states and 432 transitions. [2023-08-29 18:15:04,023 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 53 transitions, 194 flow [2023-08-29 18:15:04,025 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 18:15:04,027 INFO L231 Difference]: Finished difference. Result has 44 places, 38 transitions, 91 flow [2023-08-29 18:15:04,028 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=256, 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 18:15:04,031 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 2 predicate places. [2023-08-29 18:15:04,031 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 38 transitions, 91 flow [2023-08-29 18:15:04,032 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 126.33333333333333) internal successors, (379), 3 states have internal predecessors, (379), 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 18:15:04,032 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:15:04,032 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2023-08-29 18:15:04,032 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-29 18:15:04,033 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 18:15:04,033 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:15:04,033 INFO L85 PathProgramCache]: Analyzing trace with hash -1266432981, now seen corresponding path program 1 times [2023-08-29 18:15:04,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:15:04,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830687384] [2023-08-29 18:15:04,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:15:04,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:15:04,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-29 18:15:04,058 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-29 18:15:04,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-29 18:15:04,086 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-29 18:15:04,087 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-29 18:15:04,088 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 11 remaining) [2023-08-29 18:15:04,090 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (9 of 11 remaining) [2023-08-29 18:15:04,090 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (8 of 11 remaining) [2023-08-29 18:15:04,090 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 11 remaining) [2023-08-29 18:15:04,090 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (6 of 11 remaining) [2023-08-29 18:15:04,091 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (5 of 11 remaining) [2023-08-29 18:15:04,091 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 11 remaining) [2023-08-29 18:15:04,091 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 11 remaining) [2023-08-29 18:15:04,091 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (2 of 11 remaining) [2023-08-29 18:15:04,091 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 11 remaining) [2023-08-29 18:15:04,092 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 11 remaining) [2023-08-29 18:15:04,092 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-29 18:15:04,092 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-08-29 18:15:04,094 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-29 18:15:04,094 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-08-29 18:15:04,114 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-29 18:15:04,117 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 172 places, 189 transitions, 396 flow [2023-08-29 18:15:04,169 INFO L130 PetriNetUnfolder]: 40/319 cut-off events. [2023-08-29 18:15:04,169 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2023-08-29 18:15:04,172 INFO L83 FinitePrefix]: Finished finitePrefix Result has 333 conditions, 319 events. 40/319 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. 0/260 useless extension candidates. Maximal degree in co-relation 195. Up to 9 conditions per place. [2023-08-29 18:15:04,172 INFO L82 GeneralOperation]: Start removeDead. Operand has 172 places, 189 transitions, 396 flow [2023-08-29 18:15:04,174 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 172 places, 189 transitions, 396 flow [2023-08-29 18:15:04,174 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 18:15:04,175 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 172 places, 189 transitions, 396 flow [2023-08-29 18:15:04,175 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 172 places, 189 transitions, 396 flow [2023-08-29 18:15:04,175 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 172 places, 189 transitions, 396 flow [2023-08-29 18:15:04,207 INFO L130 PetriNetUnfolder]: 40/319 cut-off events. [2023-08-29 18:15:04,207 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2023-08-29 18:15:04,210 INFO L83 FinitePrefix]: Finished finitePrefix Result has 333 conditions, 319 events. 40/319 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. 0/260 useless extension candidates. Maximal degree in co-relation 195. Up to 9 conditions per place. [2023-08-29 18:15:04,218 INFO L119 LiptonReduction]: Number of co-enabled transitions 14696 [2023-08-29 18:15:07,462 INFO L134 LiptonReduction]: Checked pairs total: 53150 [2023-08-29 18:15:07,463 INFO L136 LiptonReduction]: Total number of compositions: 127 [2023-08-29 18:15:07,465 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 18:15:07,466 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;@64aaa5e4, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 18:15:07,466 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2023-08-29 18:15:07,468 INFO L130 PetriNetUnfolder]: 1/10 cut-off events. [2023-08-29 18:15:07,468 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 18:15:07,468 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:15:07,468 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-29 18:15:07,468 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 18:15:07,469 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:15:07,469 INFO L85 PathProgramCache]: Analyzing trace with hash 27731162, now seen corresponding path program 1 times [2023-08-29 18:15:07,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:15:07,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356009702] [2023-08-29 18:15:07,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:15:07,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:15:07,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:15:07,513 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 18:15:07,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:15:07,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356009702] [2023-08-29 18:15:07,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356009702] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:15:07,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:15:07,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 18:15:07,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368527769] [2023-08-29 18:15:07,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:15:07,515 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 18:15:07,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:15:07,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 18:15:07,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 18:15:07,533 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 316 [2023-08-29 18:15:07,534 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 86 transitions, 190 flow. Second operand has 3 states, 3 states have (on average 164.33333333333334) internal successors, (493), 3 states have internal predecessors, (493), 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 18:15:07,534 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:15:07,534 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 316 [2023-08-29 18:15:07,535 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:15:08,072 INFO L130 PetriNetUnfolder]: 2604/5738 cut-off events. [2023-08-29 18:15:08,074 INFO L131 PetriNetUnfolder]: For 66/66 co-relation queries the response was YES. [2023-08-29 18:15:08,081 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9940 conditions, 5738 events. 2604/5738 cut-off events. For 66/66 co-relation queries the response was YES. Maximal size of possible extension queue 194. Compared 45637 event pairs, 1140 based on Foata normal form. 648/5678 useless extension candidates. Maximal degree in co-relation 857. Up to 4105 conditions per place. [2023-08-29 18:15:08,102 INFO L137 encePairwiseOnDemand]: 296/316 looper letters, 47 selfloop transitions, 2 changer transitions 0/81 dead transitions. [2023-08-29 18:15:08,103 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 81 transitions, 278 flow [2023-08-29 18:15:08,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 18:15:08,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 18:15:08,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 562 transitions. [2023-08-29 18:15:08,108 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5928270042194093 [2023-08-29 18:15:08,108 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 562 transitions. [2023-08-29 18:15:08,108 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 562 transitions. [2023-08-29 18:15:08,108 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:15:08,109 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 562 transitions. [2023-08-29 18:15:08,110 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 187.33333333333334) internal successors, (562), 3 states have internal predecessors, (562), 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 18:15:08,113 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 316.0) internal successors, (1264), 4 states have internal predecessors, (1264), 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 18:15:08,114 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 316.0) internal successors, (1264), 4 states have internal predecessors, (1264), 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 18:15:08,114 INFO L175 Difference]: Start difference. First operand has 73 places, 86 transitions, 190 flow. Second operand 3 states and 562 transitions. [2023-08-29 18:15:08,114 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 81 transitions, 278 flow [2023-08-29 18:15:08,116 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 18:15:08,118 INFO L231 Difference]: Finished difference. Result has 74 places, 70 transitions, 170 flow [2023-08-29 18:15:08,118 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=316, 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 18:15:08,119 INFO L281 CegarLoopForPetriNet]: 73 programPoint places, 1 predicate places. [2023-08-29 18:15:08,120 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 70 transitions, 170 flow [2023-08-29 18:15:08,120 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 164.33333333333334) internal successors, (493), 3 states have internal predecessors, (493), 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 18:15:08,120 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:15:08,120 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:15:08,120 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-29 18:15:08,121 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 18:15:08,121 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:15:08,121 INFO L85 PathProgramCache]: Analyzing trace with hash 258240051, now seen corresponding path program 1 times [2023-08-29 18:15:08,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:15:08,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873452659] [2023-08-29 18:15:08,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:15:08,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:15:08,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:15:08,186 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 18:15:08,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:15:08,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873452659] [2023-08-29 18:15:08,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1873452659] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:15:08,187 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:15:08,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 18:15:08,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479176315] [2023-08-29 18:15:08,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:15:08,188 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 18:15:08,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:15:08,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 18:15:08,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 18:15:08,218 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 148 out of 316 [2023-08-29 18:15:08,219 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 70 transitions, 170 flow. Second operand has 3 states, 3 states have (on average 150.33333333333334) internal successors, (451), 3 states have internal predecessors, (451), 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 18:15:08,219 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:15:08,219 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 148 of 316 [2023-08-29 18:15:08,219 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:15:09,517 INFO L130 PetriNetUnfolder]: 9446/17164 cut-off events. [2023-08-29 18:15:09,519 INFO L131 PetriNetUnfolder]: For 783/783 co-relation queries the response was YES. [2023-08-29 18:15:09,540 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33327 conditions, 17164 events. 9446/17164 cut-off events. For 783/783 co-relation queries the response was YES. Maximal size of possible extension queue 490. Compared 132314 event pairs, 3843 based on Foata normal form. 0/15689 useless extension candidates. Maximal degree in co-relation 33221. Up to 7814 conditions per place. [2023-08-29 18:15:09,617 INFO L137 encePairwiseOnDemand]: 297/316 looper letters, 83 selfloop transitions, 14 changer transitions 0/115 dead transitions. [2023-08-29 18:15:09,618 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 115 transitions, 474 flow [2023-08-29 18:15:09,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 18:15:09,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 18:15:09,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 544 transitions. [2023-08-29 18:15:09,620 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5738396624472574 [2023-08-29 18:15:09,620 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 544 transitions. [2023-08-29 18:15:09,621 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 544 transitions. [2023-08-29 18:15:09,621 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:15:09,621 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 544 transitions. [2023-08-29 18:15:09,623 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 181.33333333333334) internal successors, (544), 3 states have internal predecessors, (544), 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 18:15:09,626 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 316.0) internal successors, (1264), 4 states have internal predecessors, (1264), 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 18:15:09,627 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 316.0) internal successors, (1264), 4 states have internal predecessors, (1264), 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 18:15:09,627 INFO L175 Difference]: Start difference. First operand has 74 places, 70 transitions, 170 flow. Second operand 3 states and 544 transitions. [2023-08-29 18:15:09,627 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 115 transitions, 474 flow [2023-08-29 18:15:09,629 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 18:15:09,631 INFO L231 Difference]: Finished difference. Result has 77 places, 84 transitions, 290 flow [2023-08-29 18:15:09,631 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=316, 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 18:15:09,632 INFO L281 CegarLoopForPetriNet]: 73 programPoint places, 4 predicate places. [2023-08-29 18:15:09,632 INFO L495 AbstractCegarLoop]: Abstraction has has 77 places, 84 transitions, 290 flow [2023-08-29 18:15:09,633 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 150.33333333333334) internal successors, (451), 3 states have internal predecessors, (451), 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 18:15:09,633 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:15:09,633 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2023-08-29 18:15:09,633 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-29 18:15:09,633 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 18:15:09,634 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:15:09,634 INFO L85 PathProgramCache]: Analyzing trace with hash 969495195, now seen corresponding path program 1 times [2023-08-29 18:15:09,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:15:09,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012889084] [2023-08-29 18:15:09,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:15:09,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:15:09,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-29 18:15:09,650 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-29 18:15:09,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-29 18:15:09,664 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-29 18:15:09,664 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-29 18:15:09,664 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (14 of 15 remaining) [2023-08-29 18:15:09,665 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (13 of 15 remaining) [2023-08-29 18:15:09,665 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (12 of 15 remaining) [2023-08-29 18:15:09,665 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (11 of 15 remaining) [2023-08-29 18:15:09,665 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (10 of 15 remaining) [2023-08-29 18:15:09,666 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (9 of 15 remaining) [2023-08-29 18:15:09,666 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (8 of 15 remaining) [2023-08-29 18:15:09,666 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 15 remaining) [2023-08-29 18:15:09,666 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (6 of 15 remaining) [2023-08-29 18:15:09,666 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (5 of 15 remaining) [2023-08-29 18:15:09,667 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 15 remaining) [2023-08-29 18:15:09,667 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 15 remaining) [2023-08-29 18:15:09,667 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (2 of 15 remaining) [2023-08-29 18:15:09,667 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 15 remaining) [2023-08-29 18:15:09,668 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 15 remaining) [2023-08-29 18:15:09,668 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-29 18:15:09,668 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-08-29 18:15:09,669 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-29 18:15:09,669 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2023-08-29 18:15:09,691 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-08-29 18:15:09,694 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 213 places, 235 transitions, 500 flow [2023-08-29 18:15:09,757 INFO L130 PetriNetUnfolder]: 62/488 cut-off events. [2023-08-29 18:15:09,758 INFO L131 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2023-08-29 18:15:09,762 INFO L83 FinitePrefix]: Finished finitePrefix Result has 516 conditions, 488 events. 62/488 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1802 event pairs, 1 based on Foata normal form. 0/398 useless extension candidates. Maximal degree in co-relation 327. Up to 16 conditions per place. [2023-08-29 18:15:09,762 INFO L82 GeneralOperation]: Start removeDead. Operand has 213 places, 235 transitions, 500 flow [2023-08-29 18:15:09,765 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 213 places, 235 transitions, 500 flow [2023-08-29 18:15:09,766 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 18:15:09,766 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 213 places, 235 transitions, 500 flow [2023-08-29 18:15:09,766 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 213 places, 235 transitions, 500 flow [2023-08-29 18:15:09,766 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 213 places, 235 transitions, 500 flow [2023-08-29 18:15:09,818 INFO L130 PetriNetUnfolder]: 62/488 cut-off events. [2023-08-29 18:15:09,818 INFO L131 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2023-08-29 18:15:09,823 INFO L83 FinitePrefix]: Finished finitePrefix Result has 516 conditions, 488 events. 62/488 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1802 event pairs, 1 based on Foata normal form. 0/398 useless extension candidates. Maximal degree in co-relation 327. Up to 16 conditions per place. [2023-08-29 18:15:09,840 INFO L119 LiptonReduction]: Number of co-enabled transitions 28248 [2023-08-29 18:15:13,236 INFO L134 LiptonReduction]: Checked pairs total: 113711 [2023-08-29 18:15:13,236 INFO L136 LiptonReduction]: Total number of compositions: 149 [2023-08-29 18:15:13,238 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 18:15:13,239 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;@64aaa5e4, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 18:15:13,239 INFO L358 AbstractCegarLoop]: Starting to check reachability of 19 error locations. [2023-08-29 18:15:13,241 INFO L130 PetriNetUnfolder]: 1/12 cut-off events. [2023-08-29 18:15:13,241 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 18:15:13,241 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:15:13,242 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-29 18:15:13,242 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 18:15:13,242 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:15:13,242 INFO L85 PathProgramCache]: Analyzing trace with hash 40968341, now seen corresponding path program 1 times [2023-08-29 18:15:13,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:15:13,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182276834] [2023-08-29 18:15:13,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:15:13,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:15:13,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:15:13,269 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 18:15:13,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:15:13,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182276834] [2023-08-29 18:15:13,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [182276834] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:15:13,270 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:15:13,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 18:15:13,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121574230] [2023-08-29 18:15:13,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:15:13,271 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 18:15:13,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:15:13,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 18:15:13,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 18:15:13,279 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 201 out of 384 [2023-08-29 18:15:13,279 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 117 transitions, 264 flow. Second operand has 3 states, 3 states have (on average 202.33333333333334) internal successors, (607), 3 states have internal predecessors, (607), 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 18:15:13,280 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:15:13,280 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 201 of 384 [2023-08-29 18:15:13,280 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:15:18,437 INFO L130 PetriNetUnfolder]: 44830/77840 cut-off events. [2023-08-29 18:15:18,438 INFO L131 PetriNetUnfolder]: For 1594/1594 co-relation queries the response was YES. [2023-08-29 18:15:18,689 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 733658 event pairs, 28031 based on Foata normal form. 11880/81527 useless extension candidates. Maximal degree in co-relation 9903. Up to 62105 conditions per place. [2023-08-29 18:15:18,993 INFO L137 encePairwiseOnDemand]: 358/384 looper letters, 59 selfloop transitions, 2 changer transitions 0/106 dead transitions. [2023-08-29 18:15:18,994 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 106 transitions, 364 flow [2023-08-29 18:15:18,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 18:15:18,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 18:15:19,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 694 transitions. [2023-08-29 18:15:19,002 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6024305555555556 [2023-08-29 18:15:19,002 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 694 transitions. [2023-08-29 18:15:19,002 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 694 transitions. [2023-08-29 18:15:19,002 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:15:19,003 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 694 transitions. [2023-08-29 18:15:19,005 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 231.33333333333334) internal successors, (694), 3 states have internal predecessors, (694), 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 18:15:19,007 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 384.0) internal successors, (1536), 4 states have internal predecessors, (1536), 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 18:15:19,008 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 384.0) internal successors, (1536), 4 states have internal predecessors, (1536), 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 18:15:19,008 INFO L175 Difference]: Start difference. First operand has 99 places, 117 transitions, 264 flow. Second operand 3 states and 694 transitions. [2023-08-29 18:15:19,008 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 106 transitions, 364 flow [2023-08-29 18:15:19,013 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 18:15:19,017 INFO L231 Difference]: Finished difference. Result has 100 places, 95 transitions, 232 flow [2023-08-29 18:15:19,017 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=384, 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 18:15:19,021 INFO L281 CegarLoopForPetriNet]: 99 programPoint places, 1 predicate places. [2023-08-29 18:15:19,021 INFO L495 AbstractCegarLoop]: Abstraction has has 100 places, 95 transitions, 232 flow [2023-08-29 18:15:19,023 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 202.33333333333334) internal successors, (607), 3 states have internal predecessors, (607), 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 18:15:19,023 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:15:19,023 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:15:19,023 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-29 18:15:19,023 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 18:15:19,024 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:15:19,024 INFO L85 PathProgramCache]: Analyzing trace with hash -1088112869, now seen corresponding path program 1 times [2023-08-29 18:15:19,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:15:19,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033393777] [2023-08-29 18:15:19,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:15:19,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:15:19,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:15:19,070 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 18:15:19,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:15:19,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033393777] [2023-08-29 18:15:19,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2033393777] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:15:19,070 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:15:19,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 18:15:19,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551918752] [2023-08-29 18:15:19,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:15:19,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 18:15:19,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:15:19,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 18:15:19,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 18:15:19,111 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 178 out of 384 [2023-08-29 18:15:19,112 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 95 transitions, 232 flow. Second operand has 3 states, 3 states have (on average 180.0) internal successors, (540), 3 states have internal predecessors, (540), 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 18:15:19,112 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:15:19,113 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 178 of 384 [2023-08-29 18:15:19,113 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:15:45,542 INFO L130 PetriNetUnfolder]: 298911/451134 cut-off events. [2023-08-29 18:15:45,543 INFO L131 PetriNetUnfolder]: For 19584/19584 co-relation queries the response was YES. [2023-08-29 18:15:46,427 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 4035127 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 18:15:48,006 INFO L137 encePairwiseOnDemand]: 357/384 looper letters, 111 selfloop transitions, 20 changer transitions 0/156 dead transitions. [2023-08-29 18:15:48,006 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 156 transitions, 646 flow [2023-08-29 18:15:48,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 18:15:48,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 18:15:48,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 670 transitions. [2023-08-29 18:15:48,008 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5815972222222222 [2023-08-29 18:15:48,009 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 670 transitions. [2023-08-29 18:15:48,009 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 670 transitions. [2023-08-29 18:15:48,009 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:15:48,009 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 670 transitions. [2023-08-29 18:15:48,011 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 223.33333333333334) internal successors, (670), 3 states have internal predecessors, (670), 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 18:15:48,013 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 384.0) internal successors, (1536), 4 states have internal predecessors, (1536), 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 18:15:48,014 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 384.0) internal successors, (1536), 4 states have internal predecessors, (1536), 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 18:15:48,014 INFO L175 Difference]: Start difference. First operand has 100 places, 95 transitions, 232 flow. Second operand 3 states and 670 transitions. [2023-08-29 18:15:48,014 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 156 transitions, 646 flow [2023-08-29 18:15:48,021 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 18:15:48,023 INFO L231 Difference]: Finished difference. Result has 103 places, 115 transitions, 404 flow [2023-08-29 18:15:48,023 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=384, 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 18:15:48,024 INFO L281 CegarLoopForPetriNet]: 99 programPoint places, 4 predicate places. [2023-08-29 18:15:48,024 INFO L495 AbstractCegarLoop]: Abstraction has has 103 places, 115 transitions, 404 flow [2023-08-29 18:15:48,024 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 180.0) internal successors, (540), 3 states have internal predecessors, (540), 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 18:15:48,024 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:15:48,025 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:15:48,025 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-29 18:15:48,025 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 18:15:48,025 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:15:48,025 INFO L85 PathProgramCache]: Analyzing trace with hash -1551116862, now seen corresponding path program 1 times [2023-08-29 18:15:48,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:15:48,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621749351] [2023-08-29 18:15:48,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:15:48,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:15:48,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:15:48,047 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 18:15:48,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:15:48,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621749351] [2023-08-29 18:15:48,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1621749351] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:15:48,048 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:15:48,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 18:15:48,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473062523] [2023-08-29 18:15:48,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:15:48,048 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 18:15:48,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:15:48,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 18:15:48,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 18:15:48,098 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 188 out of 384 [2023-08-29 18:15:48,101 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 115 transitions, 404 flow. Second operand has 3 states, 3 states have (on average 190.33333333333334) internal successors, (571), 3 states have internal predecessors, (571), 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 18:15:48,101 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:15:48,101 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 188 of 384 [2023-08-29 18:15:48,101 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:15:49,088 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1119] 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], [Black: 221#true, 182#L949-5true, t_funThread1of3ForFork0InUse, 147#L939-17true, 227#true, t_funThread2of3ForFork0InUse, t_funThread3of3ForFork0NotInUse, 58#L939-4true, Black: 218#(= |ULTIMATE.start_main_~i~1#1| 0), 223#(= |#race~global~0| 0)]) [2023-08-29 18:15:49,088 INFO L383 tUnfolder$Statistics]: this new event has 30 ancestors and is cut-off event [2023-08-29 18:15:49,088 INFO L386 tUnfolder$Statistics]: existing Event has 30 ancestors and is cut-off event [2023-08-29 18:15:49,088 INFO L386 tUnfolder$Statistics]: existing Event has 30 ancestors and is cut-off event [2023-08-29 18:15:49,088 INFO L386 tUnfolder$Statistics]: existing Event has 30 ancestors and is cut-off event [2023-08-29 18:15:49,742 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1182] L939-6-->L939-8: Formula: (= |v_t_funThread2of3ForFork0_#t~nondet34_13| |v_#race~global~0_54|) InVars {} OutVars{t_funThread2of3ForFork0_#t~nondet34=|v_t_funThread2of3ForFork0_#t~nondet34_13|, #race~global~0=|v_#race~global~0_54|} AuxVars[] AssignedVars[t_funThread2of3ForFork0_#t~nondet34, #race~global~0][50], [182#L949-5true, Black: 223#(= |#race~global~0| 0), t_funThread1of3ForFork0InUse, 227#true, t_funThread2of3ForFork0InUse, t_funThread3of3ForFork0NotInUse, 221#true, 192#L939-8true, 86#L939-16true, Black: 218#(= |ULTIMATE.start_main_~i~1#1| 0)]) [2023-08-29 18:15:49,742 INFO L383 tUnfolder$Statistics]: this new event has 32 ancestors and is cut-off event [2023-08-29 18:15:49,742 INFO L386 tUnfolder$Statistics]: existing Event has 32 ancestors and is cut-off event [2023-08-29 18:15:49,742 INFO L386 tUnfolder$Statistics]: existing Event has 32 ancestors and is cut-off event [2023-08-29 18:15:49,742 INFO L386 tUnfolder$Statistics]: existing Event has 32 ancestors and is cut-off event [2023-08-29 18:15:50,047 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1119] 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], [Black: 221#true, 182#L949-5true, t_funThread1of3ForFork0InUse, 147#L939-17true, 227#true, t_funThread2of3ForFork0InUse, 44#$Ultimate##0true, t_funThread3of3ForFork0InUse, 58#L939-4true, Black: 218#(= |ULTIMATE.start_main_~i~1#1| 0), 223#(= |#race~global~0| 0)]) [2023-08-29 18:15:50,047 INFO L383 tUnfolder$Statistics]: this new event has 34 ancestors and is cut-off event [2023-08-29 18:15:50,047 INFO L386 tUnfolder$Statistics]: existing Event has 34 ancestors and is cut-off event [2023-08-29 18:15:50,047 INFO L386 tUnfolder$Statistics]: existing Event has 34 ancestors and is cut-off event [2023-08-29 18:15:50,047 INFO L386 tUnfolder$Statistics]: existing Event has 34 ancestors and is cut-off event [2023-08-29 18:15:50,532 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1119] 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], [182#L949-5true, Black: 221#true, t_funThread1of3ForFork0InUse, 140#L939-29true, 227#true, 147#L939-17true, t_funThread2of3ForFork0InUse, t_funThread3of3ForFork0InUse, 58#L939-4true, Black: 218#(= |ULTIMATE.start_main_~i~1#1| 0), 223#(= |#race~global~0| 0)]) [2023-08-29 18:15:50,533 INFO L383 tUnfolder$Statistics]: this new event has 35 ancestors and is cut-off event [2023-08-29 18:15:50,533 INFO L386 tUnfolder$Statistics]: existing Event has 35 ancestors and is cut-off event [2023-08-29 18:15:50,533 INFO L386 tUnfolder$Statistics]: existing Event has 35 ancestors and is cut-off event [2023-08-29 18:15:50,533 INFO L386 tUnfolder$Statistics]: existing Event has 35 ancestors and is cut-off event [2023-08-29 18:15:50,838 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1182] L939-6-->L939-8: Formula: (= |v_t_funThread2of3ForFork0_#t~nondet34_13| |v_#race~global~0_54|) InVars {} OutVars{t_funThread2of3ForFork0_#t~nondet34=|v_t_funThread2of3ForFork0_#t~nondet34_13|, #race~global~0=|v_#race~global~0_54|} AuxVars[] AssignedVars[t_funThread2of3ForFork0_#t~nondet34, #race~global~0][50], [182#L949-5true, t_funThread1of3ForFork0InUse, Black: 223#(= |#race~global~0| 0), 140#L939-29true, 227#true, t_funThread2of3ForFork0InUse, t_funThread3of3ForFork0InUse, 221#true, 192#L939-8true, Black: 218#(= |ULTIMATE.start_main_~i~1#1| 0), 121#L939-27true]) [2023-08-29 18:15:50,838 INFO L383 tUnfolder$Statistics]: this new event has 36 ancestors and is cut-off event [2023-08-29 18:15:50,838 INFO L386 tUnfolder$Statistics]: existing Event has 36 ancestors and is cut-off event [2023-08-29 18:15:50,838 INFO L386 tUnfolder$Statistics]: existing Event has 36 ancestors and is cut-off event [2023-08-29 18:15:50,838 INFO L386 tUnfolder$Statistics]: existing Event has 36 ancestors and is cut-off event [2023-08-29 18:15:50,839 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1179] L939-1-->L939-3: Formula: (= |v_#race~global~0_52| 0) InVars {} OutVars{t_funThread3of3ForFork0_#t~nondet32=|v_t_funThread3of3ForFork0_#t~nondet32_7|, #race~global~0=|v_#race~global~0_52|} AuxVars[] AssignedVars[t_funThread3of3ForFork0_#t~nondet32, #race~global~0][76], [136#L939-3true, 182#L949-5true, Black: 221#true, t_funThread1of3ForFork0InUse, 227#true, t_funThread2of3ForFork0InUse, t_funThread3of3ForFork0InUse, 58#L939-4true, Black: 218#(= |ULTIMATE.start_main_~i~1#1| 0), 223#(= |#race~global~0| 0), 121#L939-27true]) [2023-08-29 18:15:50,840 INFO L383 tUnfolder$Statistics]: this new event has 36 ancestors and is cut-off event [2023-08-29 18:15:50,841 INFO L386 tUnfolder$Statistics]: existing Event has 36 ancestors and is cut-off event [2023-08-29 18:15:50,841 INFO L386 tUnfolder$Statistics]: existing Event has 36 ancestors and is cut-off event [2023-08-29 18:15:50,841 INFO L386 tUnfolder$Statistics]: existing Event has 36 ancestors and is cut-off event [2023-08-29 18:15:50,842 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1182] L939-6-->L939-8: Formula: (= |v_t_funThread2of3ForFork0_#t~nondet34_13| |v_#race~global~0_54|) InVars {} OutVars{t_funThread2of3ForFork0_#t~nondet34=|v_t_funThread2of3ForFork0_#t~nondet34_13|, #race~global~0=|v_#race~global~0_54|} AuxVars[] AssignedVars[t_funThread2of3ForFork0_#t~nondet34, #race~global~0][50], [182#L949-5true, t_funThread1of3ForFork0InUse, Black: 223#(= |#race~global~0| 0), 227#true, t_funThread2of3ForFork0InUse, 44#$Ultimate##0true, t_funThread3of3ForFork0InUse, 221#true, 86#L939-16true, 192#L939-8true, Black: 218#(= |ULTIMATE.start_main_~i~1#1| 0)]) [2023-08-29 18:15:50,842 INFO L383 tUnfolder$Statistics]: this new event has 36 ancestors and is cut-off event [2023-08-29 18:15:50,842 INFO L386 tUnfolder$Statistics]: existing Event has 36 ancestors and is cut-off event [2023-08-29 18:15:50,842 INFO L386 tUnfolder$Statistics]: existing Event has 36 ancestors and is cut-off event [2023-08-29 18:15:50,842 INFO L386 tUnfolder$Statistics]: existing Event has 36 ancestors and is cut-off event [2023-08-29 18:15:51,199 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1182] L939-6-->L939-8: Formula: (= |v_t_funThread2of3ForFork0_#t~nondet34_13| |v_#race~global~0_54|) InVars {} OutVars{t_funThread2of3ForFork0_#t~nondet34=|v_t_funThread2of3ForFork0_#t~nondet34_13|, #race~global~0=|v_#race~global~0_54|} AuxVars[] AssignedVars[t_funThread2of3ForFork0_#t~nondet34, #race~global~0][50], [182#L949-5true, t_funThread1of3ForFork0InUse, Black: 223#(= |#race~global~0| 0), 227#true, 140#L939-29true, t_funThread2of3ForFork0InUse, t_funThread3of3ForFork0InUse, 221#true, 192#L939-8true, 86#L939-16true, Black: 218#(= |ULTIMATE.start_main_~i~1#1| 0)]) [2023-08-29 18:15:51,199 INFO L383 tUnfolder$Statistics]: this new event has 37 ancestors and is cut-off event [2023-08-29 18:15:51,199 INFO L386 tUnfolder$Statistics]: existing Event has 37 ancestors and is cut-off event [2023-08-29 18:15:51,199 INFO L386 tUnfolder$Statistics]: existing Event has 37 ancestors and is cut-off event [2023-08-29 18:15:51,199 INFO L386 tUnfolder$Statistics]: existing Event has 37 ancestors and is cut-off event [2023-08-29 18:15:51,819 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1179] L939-1-->L939-3: Formula: (= |v_#race~global~0_52| 0) InVars {} OutVars{t_funThread3of3ForFork0_#t~nondet32=|v_t_funThread3of3ForFork0_#t~nondet32_7|, #race~global~0=|v_#race~global~0_52|} AuxVars[] AssignedVars[t_funThread3of3ForFork0_#t~nondet32, #race~global~0][76], [136#L939-3true, 182#L949-5true, Black: 221#true, t_funThread1of3ForFork0InUse, 227#true, t_funThread2of3ForFork0InUse, t_funThread3of3ForFork0InUse, 86#L939-16true, 58#L939-4true, Black: 218#(= |ULTIMATE.start_main_~i~1#1| 0), 223#(= |#race~global~0| 0)]) [2023-08-29 18:15:51,820 INFO L383 tUnfolder$Statistics]: this new event has 37 ancestors and is not cut-off event [2023-08-29 18:15:51,820 INFO L386 tUnfolder$Statistics]: existing Event has 37 ancestors and is not cut-off event [2023-08-29 18:15:51,820 INFO L386 tUnfolder$Statistics]: existing Event has 37 ancestors and is not cut-off event [2023-08-29 18:15:51,820 INFO L386 tUnfolder$Statistics]: existing Event has 37 ancestors and is not cut-off event [2023-08-29 18:15:51,822 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1119] L939-16-->L939-17: Formula: (= |v_#race~global~0_10| 0) InVars {} OutVars{#race~global~0=|v_#race~global~0_10|} AuxVars[] AssignedVars[#race~global~0][89], [182#L949-5true, Black: 221#true, t_funThread1of3ForFork0InUse, 147#L939-17true, 227#true, t_funThread2of3ForFork0InUse, t_funThread3of3ForFork0InUse, 6#L939-3true, 133#L939-4true, Black: 218#(= |ULTIMATE.start_main_~i~1#1| 0), 223#(= |#race~global~0| 0)]) [2023-08-29 18:15:51,822 INFO L383 tUnfolder$Statistics]: this new event has 38 ancestors and is cut-off event [2023-08-29 18:15:51,822 INFO L386 tUnfolder$Statistics]: existing Event has 38 ancestors and is cut-off event [2023-08-29 18:15:51,822 INFO L386 tUnfolder$Statistics]: existing Event has 38 ancestors and is cut-off event [2023-08-29 18:15:51,822 INFO L386 tUnfolder$Statistics]: existing Event has 38 ancestors and is cut-off event [2023-08-29 18:15:51,827 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1119] 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], [136#L939-3true, Black: 221#true, 182#L949-5true, t_funThread1of3ForFork0InUse, 147#L939-17true, 227#true, t_funThread2of3ForFork0InUse, t_funThread3of3ForFork0InUse, 58#L939-4true, Black: 218#(= |ULTIMATE.start_main_~i~1#1| 0), 223#(= |#race~global~0| 0)]) [2023-08-29 18:15:51,827 INFO L383 tUnfolder$Statistics]: this new event has 38 ancestors and is cut-off event [2023-08-29 18:15:51,827 INFO L386 tUnfolder$Statistics]: existing Event has 38 ancestors and is cut-off event [2023-08-29 18:15:51,828 INFO L386 tUnfolder$Statistics]: existing Event has 38 ancestors and is cut-off event [2023-08-29 18:15:51,828 INFO L386 tUnfolder$Statistics]: existing Event has 38 ancestors and is cut-off event [2023-08-29 18:15:51,833 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1119] L939-16-->L939-17: Formula: (= |v_#race~global~0_10| 0) InVars {} OutVars{#race~global~0=|v_#race~global~0_10|} AuxVars[] AssignedVars[#race~global~0][89], [Black: 221#true, t_funThread1of3ForFork0InUse, 147#L939-17true, 227#true, t_funThread2of3ForFork0InUse, t_funThread3of3ForFork0InUse, 77#L949-4true, 133#L939-4true, 58#L939-4true, Black: 218#(= |ULTIMATE.start_main_~i~1#1| 0), 223#(= |#race~global~0| 0)]) [2023-08-29 18:15:51,834 INFO L383 tUnfolder$Statistics]: this new event has 38 ancestors and is cut-off event [2023-08-29 18:15:51,834 INFO L386 tUnfolder$Statistics]: existing Event has 38 ancestors and is cut-off event [2023-08-29 18:15:51,834 INFO L386 tUnfolder$Statistics]: existing Event has 38 ancestors and is cut-off event [2023-08-29 18:15:51,834 INFO L386 tUnfolder$Statistics]: existing Event has 38 ancestors and is cut-off event [2023-08-29 18:15:52,521 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1119] 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], [Black: 221#true, 182#L949-5true, t_funThread1of3ForFork0InUse, 227#true, 147#L939-17true, t_funThread2of3ForFork0InUse, t_funThread3of3ForFork0InUse, 133#L939-4true, 58#L939-4true, Black: 218#(= |ULTIMATE.start_main_~i~1#1| 0), 223#(= |#race~global~0| 0)]) [2023-08-29 18:15:52,521 INFO L383 tUnfolder$Statistics]: this new event has 39 ancestors and is cut-off event [2023-08-29 18:15:52,521 INFO L386 tUnfolder$Statistics]: existing Event has 39 ancestors and is cut-off event [2023-08-29 18:15:52,521 INFO L386 tUnfolder$Statistics]: existing Event has 39 ancestors and is cut-off event [2023-08-29 18:15:52,521 INFO L386 tUnfolder$Statistics]: existing Event has 39 ancestors and is cut-off event [2023-08-29 18:15:52,524 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1119] L939-16-->L939-17: Formula: (= |v_#race~global~0_10| 0) InVars {} OutVars{#race~global~0=|v_#race~global~0_10|} AuxVars[] AssignedVars[#race~global~0][89], [Black: 221#true, 182#L949-5true, t_funThread1of3ForFork0InUse, 147#L939-17true, 227#true, t_funThread2of3ForFork0InUse, t_funThread3of3ForFork0InUse, 207#t_funErr0ASSERT_VIOLATIONDATA_RACEtrue, 58#L939-4true, Black: 218#(= |ULTIMATE.start_main_~i~1#1| 0), 223#(= |#race~global~0| 0)]) [2023-08-29 18:15:52,524 INFO L383 tUnfolder$Statistics]: this new event has 39 ancestors and is cut-off event [2023-08-29 18:15:52,524 INFO L386 tUnfolder$Statistics]: existing Event has 39 ancestors and is cut-off event [2023-08-29 18:15:52,524 INFO L386 tUnfolder$Statistics]: existing Event has 39 ancestors and is cut-off event [2023-08-29 18:15:52,525 INFO L386 tUnfolder$Statistics]: existing Event has 39 ancestors and is cut-off event [2023-08-29 18:15:52,533 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1192] L939-5-->L939-7: Formula: (= (+ |v_t_funThread3of3ForFork0_#t~post33_11| 1) v_~global~0_51) 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_51} AuxVars[] AssignedVars[t_funThread3of3ForFork0_#t~nondet34, ~global~0][71], [Black: 221#true, t_funThread1of3ForFork0InUse, 227#true, t_funThread2of3ForFork0InUse, t_funThread3of3ForFork0InUse, 77#L949-4true, 86#L939-16true, 53#L939-7true, 58#L939-4true, Black: 218#(= |ULTIMATE.start_main_~i~1#1| 0), 223#(= |#race~global~0| 0)]) [2023-08-29 18:15:52,533 INFO L383 tUnfolder$Statistics]: this new event has 39 ancestors and is cut-off event [2023-08-29 18:15:52,533 INFO L386 tUnfolder$Statistics]: existing Event has 39 ancestors and is cut-off event [2023-08-29 18:15:52,533 INFO L386 tUnfolder$Statistics]: existing Event has 39 ancestors and is cut-off event [2023-08-29 18:15:52,533 INFO L386 tUnfolder$Statistics]: existing Event has 39 ancestors and is cut-off event [2023-08-29 18:15:52,571 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1119] L939-16-->L939-17: Formula: (= |v_#race~global~0_10| 0) InVars {} OutVars{#race~global~0=|v_#race~global~0_10|} AuxVars[] AssignedVars[#race~global~0][89], [Black: 221#true, t_funThread1of3ForFork0InUse, 147#L939-17true, 227#true, t_funThread2of3ForFork0InUse, t_funThread3of3ForFork0InUse, 70#ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACEtrue, 133#L939-4true, 58#L939-4true, Black: 218#(= |ULTIMATE.start_main_~i~1#1| 0), 223#(= |#race~global~0| 0)]) [2023-08-29 18:15:52,571 INFO L383 tUnfolder$Statistics]: this new event has 39 ancestors and is cut-off event [2023-08-29 18:15:52,571 INFO L386 tUnfolder$Statistics]: existing Event has 39 ancestors and is cut-off event [2023-08-29 18:15:52,572 INFO L386 tUnfolder$Statistics]: existing Event has 39 ancestors and is cut-off event [2023-08-29 18:15:52,572 INFO L386 tUnfolder$Statistics]: existing Event has 39 ancestors and is cut-off event [2023-08-29 18:15:52,985 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1119] 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], [Black: 221#true, t_funThread1of3ForFork0InUse, 147#L939-17true, 227#true, t_funThread2of3ForFork0InUse, t_funThread3of3ForFork0InUse, 133#L939-4true, 58#L939-4true, Black: 218#(= |ULTIMATE.start_main_~i~1#1| 0), 184#L928-1true, 223#(= |#race~global~0| 0)]) [2023-08-29 18:15:52,986 INFO L383 tUnfolder$Statistics]: this new event has 40 ancestors and is cut-off event [2023-08-29 18:15:52,986 INFO L386 tUnfolder$Statistics]: existing Event has 40 ancestors and is cut-off event [2023-08-29 18:15:52,986 INFO L386 tUnfolder$Statistics]: existing Event has 40 ancestors and is cut-off event [2023-08-29 18:15:52,986 INFO L386 tUnfolder$Statistics]: existing Event has 40 ancestors and is cut-off event [2023-08-29 18:15:52,995 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1182] L939-6-->L939-8: Formula: (= |v_t_funThread2of3ForFork0_#t~nondet34_13| |v_#race~global~0_54|) InVars {} OutVars{t_funThread2of3ForFork0_#t~nondet34=|v_t_funThread2of3ForFork0_#t~nondet34_13|, #race~global~0=|v_#race~global~0_54|} AuxVars[] AssignedVars[t_funThread2of3ForFork0_#t~nondet34, #race~global~0][50], [136#L939-3true, 182#L949-5true, t_funThread1of3ForFork0InUse, Black: 223#(= |#race~global~0| 0), 227#true, t_funThread2of3ForFork0InUse, t_funThread3of3ForFork0InUse, 221#true, 86#L939-16true, 192#L939-8true, Black: 218#(= |ULTIMATE.start_main_~i~1#1| 0)]) [2023-08-29 18:15:52,996 INFO L383 tUnfolder$Statistics]: this new event has 40 ancestors and is cut-off event [2023-08-29 18:15:52,996 INFO L386 tUnfolder$Statistics]: existing Event has 40 ancestors and is cut-off event [2023-08-29 18:15:52,996 INFO L386 tUnfolder$Statistics]: existing Event has 40 ancestors and is cut-off event [2023-08-29 18:15:52,996 INFO L386 tUnfolder$Statistics]: existing Event has 40 ancestors and is cut-off event [2023-08-29 18:15:52,997 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1192] L939-5-->L939-7: Formula: (= (+ |v_t_funThread3of3ForFork0_#t~post33_11| 1) v_~global~0_51) 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_51} AuxVars[] AssignedVars[t_funThread3of3ForFork0_#t~nondet34, ~global~0][71], [Black: 221#true, 182#L949-5true, t_funThread1of3ForFork0InUse, 227#true, t_funThread2of3ForFork0InUse, t_funThread3of3ForFork0InUse, 86#L939-16true, 53#L939-7true, 58#L939-4true, Black: 218#(= |ULTIMATE.start_main_~i~1#1| 0), 223#(= |#race~global~0| 0)]) [2023-08-29 18:15:52,997 INFO L383 tUnfolder$Statistics]: this new event has 40 ancestors and is cut-off event [2023-08-29 18:15:52,997 INFO L386 tUnfolder$Statistics]: existing Event has 40 ancestors and is cut-off event [2023-08-29 18:15:52,997 INFO L386 tUnfolder$Statistics]: existing Event has 40 ancestors and is cut-off event [2023-08-29 18:15:52,997 INFO L386 tUnfolder$Statistics]: existing Event has 40 ancestors and is cut-off event [2023-08-29 18:15:53,010 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1182] L939-6-->L939-8: Formula: (= |v_t_funThread2of3ForFork0_#t~nondet34_13| |v_#race~global~0_54|) InVars {} OutVars{t_funThread2of3ForFork0_#t~nondet34=|v_t_funThread2of3ForFork0_#t~nondet34_13|, #race~global~0=|v_#race~global~0_54|} AuxVars[] AssignedVars[t_funThread2of3ForFork0_#t~nondet34, #race~global~0][50], [t_funThread1of3ForFork0InUse, Black: 223#(= |#race~global~0| 0), 227#true, t_funThread2of3ForFork0InUse, t_funThread3of3ForFork0InUse, 77#L949-4true, 221#true, 86#L939-16true, 192#L939-8true, 133#L939-4true, Black: 218#(= |ULTIMATE.start_main_~i~1#1| 0)]) [2023-08-29 18:15:53,010 INFO L383 tUnfolder$Statistics]: this new event has 40 ancestors and is cut-off event [2023-08-29 18:15:53,011 INFO L386 tUnfolder$Statistics]: existing Event has 40 ancestors and is cut-off event [2023-08-29 18:15:53,011 INFO L386 tUnfolder$Statistics]: existing Event has 40 ancestors and is cut-off event [2023-08-29 18:15:53,011 INFO L386 tUnfolder$Statistics]: existing Event has 40 ancestors and is cut-off event [2023-08-29 18:15:53,818 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1119] 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], [Black: 221#true, t_funThread1of3ForFork0InUse, 147#L939-17true, 227#true, t_funThread2of3ForFork0InUse, t_funThread3of3ForFork0InUse, 22#L949-7true, 133#L939-4true, 58#L939-4true, Black: 218#(= |ULTIMATE.start_main_~i~1#1| 0), 223#(= |#race~global~0| 0)]) [2023-08-29 18:15:53,818 INFO L383 tUnfolder$Statistics]: this new event has 41 ancestors and is cut-off event [2023-08-29 18:15:53,818 INFO L386 tUnfolder$Statistics]: existing Event has 41 ancestors and is cut-off event [2023-08-29 18:15:53,818 INFO L386 tUnfolder$Statistics]: existing Event has 41 ancestors and is cut-off event [2023-08-29 18:15:53,819 INFO L386 tUnfolder$Statistics]: existing Event has 41 ancestors and is cut-off event [2023-08-29 18:15:53,837 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1182] L939-6-->L939-8: Formula: (= |v_t_funThread2of3ForFork0_#t~nondet34_13| |v_#race~global~0_54|) InVars {} OutVars{t_funThread2of3ForFork0_#t~nondet34=|v_t_funThread2of3ForFork0_#t~nondet34_13|, #race~global~0=|v_#race~global~0_54|} AuxVars[] AssignedVars[t_funThread2of3ForFork0_#t~nondet34, #race~global~0][50], [182#L949-5true, t_funThread1of3ForFork0InUse, Black: 223#(= |#race~global~0| 0), 227#true, t_funThread2of3ForFork0InUse, t_funThread3of3ForFork0InUse, 221#true, 86#L939-16true, 192#L939-8true, 133#L939-4true, Black: 218#(= |ULTIMATE.start_main_~i~1#1| 0)]) [2023-08-29 18:15:53,837 INFO L383 tUnfolder$Statistics]: this new event has 41 ancestors and is cut-off event [2023-08-29 18:15:53,837 INFO L386 tUnfolder$Statistics]: existing Event has 41 ancestors and is cut-off event [2023-08-29 18:15:53,837 INFO L386 tUnfolder$Statistics]: existing Event has 41 ancestors and is cut-off event [2023-08-29 18:15:53,838 INFO L386 tUnfolder$Statistics]: existing Event has 41 ancestors and is cut-off event [2023-08-29 18:15:53,838 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1182] L939-6-->L939-8: Formula: (= |v_t_funThread2of3ForFork0_#t~nondet34_13| |v_#race~global~0_54|) InVars {} OutVars{t_funThread2of3ForFork0_#t~nondet34=|v_t_funThread2of3ForFork0_#t~nondet34_13|, #race~global~0=|v_#race~global~0_54|} AuxVars[] AssignedVars[t_funThread2of3ForFork0_#t~nondet34, #race~global~0][50], [182#L949-5true, t_funThread1of3ForFork0InUse, Black: 223#(= |#race~global~0| 0), 227#true, t_funThread2of3ForFork0InUse, t_funThread3of3ForFork0InUse, 221#true, 86#L939-16true, 192#L939-8true, 207#t_funErr0ASSERT_VIOLATIONDATA_RACEtrue, Black: 218#(= |ULTIMATE.start_main_~i~1#1| 0)]) [2023-08-29 18:15:53,838 INFO L383 tUnfolder$Statistics]: this new event has 41 ancestors and is cut-off event [2023-08-29 18:15:53,838 INFO L386 tUnfolder$Statistics]: existing Event has 41 ancestors and is cut-off event [2023-08-29 18:15:53,838 INFO L386 tUnfolder$Statistics]: existing Event has 41 ancestors and is cut-off event [2023-08-29 18:15:53,838 INFO L386 tUnfolder$Statistics]: existing Event has 41 ancestors and is cut-off event [2023-08-29 18:15:53,906 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1182] L939-6-->L939-8: Formula: (= |v_t_funThread2of3ForFork0_#t~nondet34_13| |v_#race~global~0_54|) InVars {} OutVars{t_funThread2of3ForFork0_#t~nondet34=|v_t_funThread2of3ForFork0_#t~nondet34_13|, #race~global~0=|v_#race~global~0_54|} AuxVars[] AssignedVars[t_funThread2of3ForFork0_#t~nondet34, #race~global~0][50], [t_funThread1of3ForFork0InUse, Black: 223#(= |#race~global~0| 0), 227#true, t_funThread2of3ForFork0InUse, t_funThread3of3ForFork0InUse, 221#true, 70#ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACEtrue, 86#L939-16true, 192#L939-8true, 133#L939-4true, Black: 218#(= |ULTIMATE.start_main_~i~1#1| 0)]) [2023-08-29 18:15:53,906 INFO L383 tUnfolder$Statistics]: this new event has 41 ancestors and is cut-off event [2023-08-29 18:15:53,906 INFO L386 tUnfolder$Statistics]: existing Event has 41 ancestors and is cut-off event [2023-08-29 18:15:53,906 INFO L386 tUnfolder$Statistics]: existing Event has 41 ancestors and is cut-off event [2023-08-29 18:15:53,906 INFO L386 tUnfolder$Statistics]: existing Event has 41 ancestors and is cut-off event [2023-08-29 18:15:54,661 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1182] L939-6-->L939-8: Formula: (= |v_t_funThread2of3ForFork0_#t~nondet34_13| |v_#race~global~0_54|) InVars {} OutVars{t_funThread2of3ForFork0_#t~nondet34=|v_t_funThread2of3ForFork0_#t~nondet34_13|, #race~global~0=|v_#race~global~0_54|} AuxVars[] AssignedVars[t_funThread2of3ForFork0_#t~nondet34, #race~global~0][50], [t_funThread1of3ForFork0InUse, Black: 223#(= |#race~global~0| 0), 227#true, t_funThread2of3ForFork0InUse, t_funThread3of3ForFork0InUse, 221#true, 86#L939-16true, 192#L939-8true, 133#L939-4true, Black: 218#(= |ULTIMATE.start_main_~i~1#1| 0), 184#L928-1true]) [2023-08-29 18:15:54,662 INFO L383 tUnfolder$Statistics]: this new event has 42 ancestors and is cut-off event [2023-08-29 18:15:54,662 INFO L386 tUnfolder$Statistics]: existing Event has 42 ancestors and is cut-off event [2023-08-29 18:15:54,662 INFO L386 tUnfolder$Statistics]: existing Event has 42 ancestors and is cut-off event [2023-08-29 18:15:54,664 INFO L386 tUnfolder$Statistics]: existing Event has 42 ancestors and is cut-off event [2023-08-29 18:15:55,250 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1182] L939-6-->L939-8: Formula: (= |v_t_funThread2of3ForFork0_#t~nondet34_13| |v_#race~global~0_54|) InVars {} OutVars{t_funThread2of3ForFork0_#t~nondet34=|v_t_funThread2of3ForFork0_#t~nondet34_13|, #race~global~0=|v_#race~global~0_54|} AuxVars[] AssignedVars[t_funThread2of3ForFork0_#t~nondet34, #race~global~0][50], [Black: 223#(= |#race~global~0| 0), t_funThread1of3ForFork0InUse, 227#true, t_funThread2of3ForFork0InUse, t_funThread3of3ForFork0InUse, 221#true, 192#L939-8true, 86#L939-16true, 22#L949-7true, 133#L939-4true, Black: 218#(= |ULTIMATE.start_main_~i~1#1| 0)]) [2023-08-29 18:15:55,251 INFO L383 tUnfolder$Statistics]: this new event has 43 ancestors and is cut-off event [2023-08-29 18:15:55,251 INFO L386 tUnfolder$Statistics]: existing Event has 43 ancestors and is cut-off event [2023-08-29 18:15:55,251 INFO L386 tUnfolder$Statistics]: existing Event has 43 ancestors and is cut-off event [2023-08-29 18:15:55,251 INFO L386 tUnfolder$Statistics]: existing Event has 43 ancestors and is cut-off event [2023-08-29 18:15:59,146 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1119] 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], [Black: 221#true, 182#L949-5true, t_funThread1of3ForFork0InUse, 147#L939-17true, 227#true, t_funThread2of3ForFork0InUse, t_funThread3of3ForFork0InUse, 133#L939-4true, 46#t_funErr2ASSERT_VIOLATIONDATA_RACEtrue, Black: 218#(= |ULTIMATE.start_main_~i~1#1| 0), 223#(= |#race~global~0| 0)]) [2023-08-29 18:15:59,147 INFO L383 tUnfolder$Statistics]: this new event has 47 ancestors and is cut-off event [2023-08-29 18:15:59,147 INFO L386 tUnfolder$Statistics]: existing Event has 47 ancestors and is cut-off event [2023-08-29 18:15:59,147 INFO L386 tUnfolder$Statistics]: existing Event has 47 ancestors and is cut-off event [2023-08-29 18:15:59,147 INFO L386 tUnfolder$Statistics]: existing Event has 47 ancestors and is cut-off event [2023-08-29 18:16:13,363 INFO L130 PetriNetUnfolder]: 250922/391605 cut-off events. [2023-08-29 18:16:13,363 INFO L131 PetriNetUnfolder]: For 191965/194851 co-relation queries the response was YES. [2023-08-29 18:16:14,388 INFO L83 FinitePrefix]: Finished finitePrefix Result has 945062 conditions, 391605 events. 250922/391605 cut-off events. For 191965/194851 co-relation queries the response was YES. Maximal size of possible extension queue 8619. Compared 3736759 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 18:16:15,976 INFO L137 encePairwiseOnDemand]: 372/384 looper letters, 100 selfloop transitions, 21 changer transitions 0/166 dead transitions. [2023-08-29 18:16:15,976 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 166 transitions, 828 flow [2023-08-29 18:16:15,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 18:16:15,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 18:16:15,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 662 transitions. [2023-08-29 18:16:15,978 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5746527777777778 [2023-08-29 18:16:15,978 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 662 transitions. [2023-08-29 18:16:15,978 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 662 transitions. [2023-08-29 18:16:15,978 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:16:15,979 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 662 transitions. [2023-08-29 18:16:15,980 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 220.66666666666666) internal successors, (662), 3 states have internal predecessors, (662), 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 18:16:15,984 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 384.0) internal successors, (1536), 4 states have internal predecessors, (1536), 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 18:16:15,985 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 384.0) internal successors, (1536), 4 states have internal predecessors, (1536), 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 18:16:15,985 INFO L175 Difference]: Start difference. First operand has 103 places, 115 transitions, 404 flow. Second operand 3 states and 662 transitions. [2023-08-29 18:16:15,985 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 166 transitions, 828 flow [2023-08-29 18:16:16,233 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 18:16:16,235 INFO L231 Difference]: Finished difference. Result has 104 places, 134 transitions, 541 flow [2023-08-29 18:16:16,235 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=384, 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 18:16:16,236 INFO L281 CegarLoopForPetriNet]: 99 programPoint places, 5 predicate places. [2023-08-29 18:16:16,236 INFO L495 AbstractCegarLoop]: Abstraction has has 104 places, 134 transitions, 541 flow [2023-08-29 18:16:16,237 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 190.33333333333334) internal successors, (571), 3 states have internal predecessors, (571), 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 18:16:16,237 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:16:16,237 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1] [2023-08-29 18:16:16,237 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-29 18:16:16,237 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 18:16:16,239 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:16:16,239 INFO L85 PathProgramCache]: Analyzing trace with hash -1793272995, now seen corresponding path program 1 times [2023-08-29 18:16:16,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:16:16,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147371724] [2023-08-29 18:16:16,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:16:16,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:16:16,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-29 18:16:16,262 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-29 18:16:16,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-29 18:16:16,284 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-29 18:16:16,284 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-29 18:16:16,285 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 19 remaining) [2023-08-29 18:16:16,285 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (17 of 19 remaining) [2023-08-29 18:16:16,285 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (16 of 19 remaining) [2023-08-29 18:16:16,285 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (15 of 19 remaining) [2023-08-29 18:16:16,285 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (14 of 19 remaining) [2023-08-29 18:16:16,285 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (13 of 19 remaining) [2023-08-29 18:16:16,286 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (12 of 19 remaining) [2023-08-29 18:16:16,286 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (11 of 19 remaining) [2023-08-29 18:16:16,286 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (10 of 19 remaining) [2023-08-29 18:16:16,286 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (9 of 19 remaining) [2023-08-29 18:16:16,286 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (8 of 19 remaining) [2023-08-29 18:16:16,286 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 19 remaining) [2023-08-29 18:16:16,287 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (6 of 19 remaining) [2023-08-29 18:16:16,287 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (5 of 19 remaining) [2023-08-29 18:16:16,287 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 19 remaining) [2023-08-29 18:16:16,287 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 19 remaining) [2023-08-29 18:16:16,287 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (2 of 19 remaining) [2023-08-29 18:16:16,287 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 19 remaining) [2023-08-29 18:16:16,288 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 19 remaining) [2023-08-29 18:16:16,288 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-29 18:16:16,288 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-08-29 18:16:16,289 WARN L233 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-29 18:16:16,289 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2023-08-29 18:16:16,314 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-08-29 18:16:16,317 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 254 places, 281 transitions, 606 flow [2023-08-29 18:16:16,395 INFO L130 PetriNetUnfolder]: 96/745 cut-off events. [2023-08-29 18:16:16,395 INFO L131 PetriNetUnfolder]: For 48/48 co-relation queries the response was YES. [2023-08-29 18:16:16,404 INFO L83 FinitePrefix]: Finished finitePrefix Result has 800 conditions, 745 events. 96/745 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 3092 event pairs, 6 based on Foata normal form. 0/612 useless extension candidates. Maximal degree in co-relation 508. Up to 32 conditions per place. [2023-08-29 18:16:16,404 INFO L82 GeneralOperation]: Start removeDead. Operand has 254 places, 281 transitions, 606 flow [2023-08-29 18:16:16,408 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 254 places, 281 transitions, 606 flow [2023-08-29 18:16:16,409 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 18:16:16,409 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 254 places, 281 transitions, 606 flow [2023-08-29 18:16:16,409 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 254 places, 281 transitions, 606 flow [2023-08-29 18:16:16,409 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 254 places, 281 transitions, 606 flow [2023-08-29 18:16:16,479 INFO L130 PetriNetUnfolder]: 96/745 cut-off events. [2023-08-29 18:16:16,479 INFO L131 PetriNetUnfolder]: For 48/48 co-relation queries the response was YES. [2023-08-29 18:16:16,485 INFO L83 FinitePrefix]: Finished finitePrefix Result has 800 conditions, 745 events. 96/745 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 3092 event pairs, 6 based on Foata normal form. 0/612 useless extension candidates. Maximal degree in co-relation 508. Up to 32 conditions per place. [2023-08-29 18:16:16,503 INFO L119 LiptonReduction]: Number of co-enabled transitions 45936 [2023-08-29 18:16:19,658 INFO L134 LiptonReduction]: Checked pairs total: 176323 [2023-08-29 18:16:19,659 INFO L136 LiptonReduction]: Total number of compositions: 166 [2023-08-29 18:16:19,660 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 18:16:19,661 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;@64aaa5e4, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 18:16:19,661 INFO L358 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2023-08-29 18:16:19,662 INFO L130 PetriNetUnfolder]: 1/12 cut-off events. [2023-08-29 18:16:19,662 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 18:16:19,663 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:16:19,663 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-29 18:16:19,663 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 18:16:19,663 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:16:19,663 INFO L85 PathProgramCache]: Analyzing trace with hash 56145849, now seen corresponding path program 1 times [2023-08-29 18:16:19,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:16:19,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354289004] [2023-08-29 18:16:19,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:16:19,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:16:19,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:16:19,699 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 18:16:19,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:16:19,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354289004] [2023-08-29 18:16:19,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [354289004] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:16:19,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:16:19,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 18:16:19,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323296902] [2023-08-29 18:16:19,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:16:19,700 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 18:16:19,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:16:19,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 18:16:19,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 18:16:19,708 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 239 out of 447 [2023-08-29 18:16:19,709 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 146 transitions, 336 flow. Second operand has 3 states, 3 states have (on average 240.33333333333334) internal successors, (721), 3 states have internal predecessors, (721), 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 18:16:19,710 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:16:19,710 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 239 of 447 [2023-08-29 18:16:19,710 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:17:40,185 INFO L130 PetriNetUnfolder]: 683784/1018432 cut-off events. [2023-08-29 18:17:40,185 INFO L131 PetriNetUnfolder]: For 25770/25770 co-relation queries the response was YES. [2023-08-29 18:17:44,000 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1914345 conditions, 1018432 events. 683784/1018432 cut-off events. For 25770/25770 co-relation queries the response was YES. Maximal size of possible extension queue 19093. Compared 10133909 event pairs, 631204 based on Foata normal form. 136086/1059528 useless extension candidates. Maximal degree in co-relation 194938. Up to 880909 conditions per place. [2023-08-29 18:17:50,422 INFO L137 encePairwiseOnDemand]: 416/447 looper letters, 71 selfloop transitions, 2 changer transitions 0/131 dead transitions. [2023-08-29 18:17:50,422 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 131 transitions, 452 flow [2023-08-29 18:17:50,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 18:17:50,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 18:17:50,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 825 transitions. [2023-08-29 18:17:50,425 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6152125279642058 [2023-08-29 18:17:50,425 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 825 transitions. [2023-08-29 18:17:50,425 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 825 transitions. [2023-08-29 18:17:50,441 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:17:50,441 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 825 transitions. [2023-08-29 18:17:50,443 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 275.0) internal successors, (825), 3 states have internal predecessors, (825), 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 18:17:50,445 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 447.0) internal successors, (1788), 4 states have internal predecessors, (1788), 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 18:17:50,451 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 447.0) internal successors, (1788), 4 states have internal predecessors, (1788), 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 18:17:50,451 INFO L175 Difference]: Start difference. First operand has 124 places, 146 transitions, 336 flow. Second operand 3 states and 825 transitions. [2023-08-29 18:17:50,452 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 131 transitions, 452 flow [2023-08-29 18:17:50,460 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 18:17:50,473 INFO L231 Difference]: Finished difference. Result has 126 places, 120 transitions, 296 flow [2023-08-29 18:17:50,474 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=447, 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 18:17:50,474 INFO L281 CegarLoopForPetriNet]: 124 programPoint places, 2 predicate places. [2023-08-29 18:17:50,475 INFO L495 AbstractCegarLoop]: Abstraction has has 126 places, 120 transitions, 296 flow [2023-08-29 18:17:50,475 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 240.33333333333334) internal successors, (721), 3 states have internal predecessors, (721), 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 18:17:50,476 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:17:50,476 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:17:50,476 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-29 18:17:50,476 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 18:17:50,476 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:17:50,477 INFO L85 PathProgramCache]: Analyzing trace with hash 622158162, now seen corresponding path program 1 times [2023-08-29 18:17:50,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:17:50,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997913868] [2023-08-29 18:17:50,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:17:50,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:17:50,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:17:50,550 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 18:17:50,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:17:50,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997913868] [2023-08-29 18:17:50,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997913868] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:17:50,551 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:17:50,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 18:17:50,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842175520] [2023-08-29 18:17:50,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:17:50,551 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 18:17:50,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:17:50,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 18:17:50,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 18:17:50,627 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 208 out of 447 [2023-08-29 18:17:50,628 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 120 transitions, 296 flow. Second operand has 3 states, 3 states have (on average 210.33333333333334) internal successors, (631), 3 states have internal predecessors, (631), 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 18:17:50,628 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:17:50,628 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 208 of 447 [2023-08-29 18:17:50,628 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand