./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_28-funptr_racefree.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability 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_28-funptr_racefree.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-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 ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5b90ecb07ae966182b79ce4444e238e18068c02297f514a326dfeeed6dbb5499 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-09-01 10:59:41,591 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-09-01 10:59:41,593 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-09-01 10:59:41,627 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-09-01 10:59:41,628 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-09-01 10:59:41,631 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-09-01 10:59:41,632 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-09-01 10:59:41,634 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-09-01 10:59:41,635 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-09-01 10:59:41,639 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-09-01 10:59:41,639 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-09-01 10:59:41,641 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-09-01 10:59:41,642 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-09-01 10:59:41,643 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-09-01 10:59:41,644 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-09-01 10:59:41,648 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-09-01 10:59:41,648 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-09-01 10:59:41,649 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-09-01 10:59:41,650 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-09-01 10:59:41,654 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-09-01 10:59:41,655 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-09-01 10:59:41,660 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-09-01 10:59:41,661 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-09-01 10:59:41,662 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-09-01 10:59:41,665 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-09-01 10:59:41,666 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-09-01 10:59:41,666 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-09-01 10:59:41,667 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-09-01 10:59:41,667 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-09-01 10:59:41,668 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-09-01 10:59:41,668 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-09-01 10:59:41,673 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-09-01 10:59:41,674 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-09-01 10:59:41,675 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-09-01 10:59:41,675 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-09-01 10:59:41,675 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-09-01 10:59:41,676 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-09-01 10:59:41,676 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-09-01 10:59:41,676 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-09-01 10:59:41,677 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-09-01 10:59:41,677 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-09-01 10:59:41,679 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-09-01 10:59:41,705 INFO L113 SettingsManager]: Loading preferences was successful [2023-09-01 10:59:41,705 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-09-01 10:59:41,706 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-09-01 10:59:41,706 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-09-01 10:59:41,707 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-09-01 10:59:41,707 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-09-01 10:59:41,708 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-09-01 10:59:41,708 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-09-01 10:59:41,708 INFO L138 SettingsManager]: * Use SBE=true [2023-09-01 10:59:41,708 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-09-01 10:59:41,709 INFO L138 SettingsManager]: * sizeof long=4 [2023-09-01 10:59:41,709 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-09-01 10:59:41,709 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-09-01 10:59:41,709 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-09-01 10:59:41,710 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-09-01 10:59:41,710 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-09-01 10:59:41,710 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-09-01 10:59:41,710 INFO L138 SettingsManager]: * sizeof long double=12 [2023-09-01 10:59:41,710 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-09-01 10:59:41,710 INFO L138 SettingsManager]: * Use constant arrays=true [2023-09-01 10:59:41,710 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-09-01 10:59:41,711 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-09-01 10:59:41,711 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-09-01 10:59:41,711 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-09-01 10:59:41,711 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 10:59:41,711 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-09-01 10:59:41,711 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-09-01 10:59:41,712 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-09-01 10:59:41,712 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-09-01 10:59:41,712 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-09-01 10:59:41,712 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-09-01 10:59:41,712 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-09-01 10:59:41,712 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-09-01 10:59:41,713 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-09-01 10:59:41,713 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-09-01 10:59:41,713 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5b90ecb07ae966182b79ce4444e238e18068c02297f514a326dfeeed6dbb5499 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-09-01 10:59:41,969 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-09-01 10:59:41,986 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-09-01 10:59:41,988 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-09-01 10:59:41,989 INFO L271 PluginConnector]: Initializing CDTParser... [2023-09-01 10:59:41,989 INFO L275 PluginConnector]: CDTParser initialized [2023-09-01 10:59:41,991 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_28-funptr_racefree.i [2023-09-01 10:59:43,232 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-09-01 10:59:43,528 INFO L351 CDTParser]: Found 1 translation units. [2023-09-01 10:59:43,528 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_28-funptr_racefree.i [2023-09-01 10:59:43,547 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/106b19b47/a9f06b9a6d614e8ba11c1e252cc60ee9/FLAG1f291a65d [2023-09-01 10:59:43,564 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/106b19b47/a9f06b9a6d614e8ba11c1e252cc60ee9 [2023-09-01 10:59:43,566 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-09-01 10:59:43,567 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-09-01 10:59:43,570 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-09-01 10:59:43,570 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-09-01 10:59:43,572 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-09-01 10:59:43,573 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 10:59:43" (1/1) ... [2023-09-01 10:59:43,574 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@fc1c2b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 10:59:43, skipping insertion in model container [2023-09-01 10:59:43,574 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 10:59:43" (1/1) ... [2023-09-01 10:59:43,579 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-09-01 10:59:43,623 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-09-01 10:59:43,936 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_28-funptr_racefree.i[41323,41336] [2023-09-01 10:59:43,959 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 10:59:43,973 INFO L203 MainTranslator]: Completed pre-run [2023-09-01 10:59:44,019 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_28-funptr_racefree.i[41323,41336] [2023-09-01 10:59:44,054 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 10:59:44,094 WARN L667 CHandler]: The function g is called, but not defined or handled by StandardFunctionHandler. [2023-09-01 10:59:44,099 INFO L208 MainTranslator]: Completed translation [2023-09-01 10:59:44,099 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 10:59:44 WrapperNode [2023-09-01 10:59:44,099 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-09-01 10:59:44,100 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-09-01 10:59:44,100 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-09-01 10:59:44,100 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-09-01 10:59:44,105 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 10:59:44" (1/1) ... [2023-09-01 10:59:44,114 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 10:59:44" (1/1) ... [2023-09-01 10:59:44,129 INFO L138 Inliner]: procedures = 273, calls = 42, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 122 [2023-09-01 10:59:44,130 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-09-01 10:59:44,130 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-09-01 10:59:44,130 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-09-01 10:59:44,130 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-09-01 10:59:44,136 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 10:59:44" (1/1) ... [2023-09-01 10:59:44,136 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 10:59:44" (1/1) ... [2023-09-01 10:59:44,139 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 10:59:44" (1/1) ... [2023-09-01 10:59:44,139 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 10:59:44" (1/1) ... [2023-09-01 10:59:44,142 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 10:59:44" (1/1) ... [2023-09-01 10:59:44,145 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 10:59:44" (1/1) ... [2023-09-01 10:59:44,146 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 10:59:44" (1/1) ... [2023-09-01 10:59:44,147 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 10:59:44" (1/1) ... [2023-09-01 10:59:44,149 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-09-01 10:59:44,149 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-09-01 10:59:44,149 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-09-01 10:59:44,153 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-09-01 10:59:44,154 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 10:59:44" (1/1) ... [2023-09-01 10:59:44,162 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 10:59:44,175 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-01 10:59:44,199 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) [2023-09-01 10:59:44,202 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 [2023-09-01 10:59:44,241 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-09-01 10:59:44,242 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-09-01 10:59:44,242 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-09-01 10:59:44,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-09-01 10:59:44,242 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-09-01 10:59:44,242 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-09-01 10:59:44,242 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-09-01 10:59:44,243 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-09-01 10:59:44,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-09-01 10:59:44,243 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-09-01 10:59:44,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-09-01 10:59:44,244 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-09-01 10:59:44,400 INFO L236 CfgBuilder]: Building ICFG [2023-09-01 10:59:44,402 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-09-01 10:59:44,583 INFO L277 CfgBuilder]: Performing block encoding [2023-09-01 10:59:44,588 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-09-01 10:59:44,591 INFO L302 CfgBuilder]: Removed 10 assume(true) statements. [2023-09-01 10:59:44,593 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 10:59:44 BoogieIcfgContainer [2023-09-01 10:59:44,593 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-09-01 10:59:44,594 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-09-01 10:59:44,596 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-09-01 10:59:44,598 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-09-01 10:59:44,599 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.09 10:59:43" (1/3) ... [2023-09-01 10:59:44,599 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@587b32c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 10:59:44, skipping insertion in model container [2023-09-01 10:59:44,600 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 10:59:44" (2/3) ... [2023-09-01 10:59:44,600 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@587b32c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 10:59:44, skipping insertion in model container [2023-09-01 10:59:44,600 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 10:59:44" (3/3) ... [2023-09-01 10:59:44,602 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_28-funptr_racefree.i [2023-09-01 10:59:44,608 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-09-01 10:59:44,614 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-09-01 10:59:44,614 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-09-01 10:59:44,615 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-09-01 10:59:44,681 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-09-01 10:59:44,713 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 110 places, 119 transitions, 246 flow [2023-09-01 10:59:44,801 INFO L130 PetriNetUnfolder]: 17/156 cut-off events. [2023-09-01 10:59:44,801 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-09-01 10:59:44,807 INFO L83 FinitePrefix]: Finished finitePrefix Result has 162 conditions, 156 events. 17/156 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 352 event pairs, 0 based on Foata normal form. 0/134 useless extension candidates. Maximal degree in co-relation 78. Up to 4 conditions per place. [2023-09-01 10:59:44,807 INFO L82 GeneralOperation]: Start removeDead. Operand has 110 places, 119 transitions, 246 flow [2023-09-01 10:59:44,811 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 106 places, 114 transitions, 233 flow [2023-09-01 10:59:44,814 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-09-01 10:59:44,829 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 106 places, 114 transitions, 233 flow [2023-09-01 10:59:44,832 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 106 places, 114 transitions, 233 flow [2023-09-01 10:59:44,832 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 106 places, 114 transitions, 233 flow [2023-09-01 10:59:44,880 INFO L130 PetriNetUnfolder]: 16/151 cut-off events. [2023-09-01 10:59:44,880 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 10:59:44,882 INFO L83 FinitePrefix]: Finished finitePrefix Result has 156 conditions, 151 events. 16/151 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 339 event pairs, 0 based on Foata normal form. 0/129 useless extension candidates. Maximal degree in co-relation 78. Up to 4 conditions per place. [2023-09-01 10:59:44,884 INFO L119 LiptonReduction]: Number of co-enabled transitions 3096 [2023-09-01 10:59:47,584 INFO L134 LiptonReduction]: Checked pairs total: 6627 [2023-09-01 10:59:47,585 INFO L136 LiptonReduction]: Total number of compositions: 91 [2023-09-01 10:59:47,595 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-09-01 10:59:47,599 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;@32c116be, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-09-01 10:59:47,599 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-09-01 10:59:47,603 INFO L130 PetriNetUnfolder]: 0/16 cut-off events. [2023-09-01 10:59:47,617 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 10:59:47,617 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 10:59:47,618 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2023-09-01 10:59:47,618 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-09-01 10:59:47,621 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 10:59:47,621 INFO L85 PathProgramCache]: Analyzing trace with hash 432317202, now seen corresponding path program 1 times [2023-09-01 10:59:47,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 10:59:47,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671273012] [2023-09-01 10:59:47,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 10:59:47,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 10:59:47,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-09-01 10:59:47,726 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-09-01 10:59:47,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-09-01 10:59:47,756 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-09-01 10:59:47,757 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-09-01 10:59:47,758 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-09-01 10:59:47,759 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-09-01 10:59:47,759 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-09-01 10:59:47,761 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-09-01 10:59:47,762 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-09-01 10:59:47,762 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-09-01 10:59:47,776 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-09-01 10:59:47,778 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 143 places, 157 transitions, 332 flow [2023-09-01 10:59:47,805 INFO L130 PetriNetUnfolder]: 31/255 cut-off events. [2023-09-01 10:59:47,806 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2023-09-01 10:59:47,807 INFO L83 FinitePrefix]: Finished finitePrefix Result has 269 conditions, 255 events. 31/255 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 755 event pairs, 0 based on Foata normal form. 0/217 useless extension candidates. Maximal degree in co-relation 158. Up to 8 conditions per place. [2023-09-01 10:59:47,807 INFO L82 GeneralOperation]: Start removeDead. Operand has 143 places, 157 transitions, 332 flow [2023-09-01 10:59:47,809 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 143 places, 157 transitions, 332 flow [2023-09-01 10:59:47,809 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-09-01 10:59:47,809 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 143 places, 157 transitions, 332 flow [2023-09-01 10:59:47,809 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 143 places, 157 transitions, 332 flow [2023-09-01 10:59:47,809 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 143 places, 157 transitions, 332 flow [2023-09-01 10:59:47,827 INFO L130 PetriNetUnfolder]: 31/255 cut-off events. [2023-09-01 10:59:47,827 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2023-09-01 10:59:47,829 INFO L83 FinitePrefix]: Finished finitePrefix Result has 269 conditions, 255 events. 31/255 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 755 event pairs, 0 based on Foata normal form. 0/217 useless extension candidates. Maximal degree in co-relation 158. Up to 8 conditions per place. [2023-09-01 10:59:47,833 INFO L119 LiptonReduction]: Number of co-enabled transitions 9576 [2023-09-01 10:59:50,299 INFO L134 LiptonReduction]: Checked pairs total: 23792 [2023-09-01 10:59:50,300 INFO L136 LiptonReduction]: Total number of compositions: 111 [2023-09-01 10:59:50,305 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-09-01 10:59:50,305 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;@32c116be, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-09-01 10:59:50,308 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-09-01 10:59:50,312 INFO L130 PetriNetUnfolder]: 5/52 cut-off events. [2023-09-01 10:59:50,313 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-09-01 10:59:50,313 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 10:59:50,313 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2023-09-01 10:59:50,314 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-09-01 10:59:50,315 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 10:59:50,315 INFO L85 PathProgramCache]: Analyzing trace with hash -2038109542, now seen corresponding path program 1 times [2023-09-01 10:59:50,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 10:59:50,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59757909] [2023-09-01 10:59:50,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 10:59:50,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 10:59:50,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-09-01 10:59:50,338 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-09-01 10:59:50,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-09-01 10:59:50,358 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-09-01 10:59:50,358 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-09-01 10:59:50,358 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-09-01 10:59:50,359 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-09-01 10:59:50,359 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-09-01 10:59:50,359 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-09-01 10:59:50,359 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2023-09-01 10:59:50,359 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2023-09-01 10:59:50,409 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-09-01 10:59:50,411 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 176 places, 195 transitions, 420 flow [2023-09-01 10:59:50,438 INFO L130 PetriNetUnfolder]: 50/385 cut-off events. [2023-09-01 10:59:50,438 INFO L131 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2023-09-01 10:59:50,441 INFO L83 FinitePrefix]: Finished finitePrefix Result has 413 conditions, 385 events. 50/385 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1323 event pairs, 1 based on Foata normal form. 0/327 useless extension candidates. Maximal degree in co-relation 263. Up to 16 conditions per place. [2023-09-01 10:59:50,441 INFO L82 GeneralOperation]: Start removeDead. Operand has 176 places, 195 transitions, 420 flow [2023-09-01 10:59:50,443 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 176 places, 195 transitions, 420 flow [2023-09-01 10:59:50,443 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-09-01 10:59:50,443 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 176 places, 195 transitions, 420 flow [2023-09-01 10:59:50,443 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 176 places, 195 transitions, 420 flow [2023-09-01 10:59:50,444 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 176 places, 195 transitions, 420 flow [2023-09-01 10:59:50,471 INFO L130 PetriNetUnfolder]: 50/385 cut-off events. [2023-09-01 10:59:50,471 INFO L131 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2023-09-01 10:59:50,473 INFO L83 FinitePrefix]: Finished finitePrefix Result has 413 conditions, 385 events. 50/385 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1323 event pairs, 1 based on Foata normal form. 0/327 useless extension candidates. Maximal degree in co-relation 263. Up to 16 conditions per place. [2023-09-01 10:59:50,483 INFO L119 LiptonReduction]: Number of co-enabled transitions 18576 [2023-09-01 10:59:53,187 INFO L134 LiptonReduction]: Checked pairs total: 54923 [2023-09-01 10:59:53,187 INFO L136 LiptonReduction]: Total number of compositions: 132 [2023-09-01 10:59:53,188 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-09-01 10:59:53,189 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;@32c116be, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-09-01 10:59:53,189 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-09-01 10:59:53,206 INFO L130 PetriNetUnfolder]: 13/89 cut-off events. [2023-09-01 10:59:53,206 INFO L131 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2023-09-01 10:59:53,207 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 10:59:53,207 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1] [2023-09-01 10:59:53,211 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-09-01 10:59:53,211 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 10:59:53,211 INFO L85 PathProgramCache]: Analyzing trace with hash -732255667, now seen corresponding path program 1 times [2023-09-01 10:59:53,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 10:59:53,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587931786] [2023-09-01 10:59:53,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 10:59:53,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 10:59:53,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-09-01 10:59:53,257 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-09-01 10:59:53,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-09-01 10:59:53,276 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-09-01 10:59:53,276 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-09-01 10:59:53,276 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-09-01 10:59:53,276 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-09-01 10:59:53,276 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-09-01 10:59:53,277 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-09-01 10:59:53,277 WARN L233 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2023-09-01 10:59:53,277 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2023-09-01 10:59:53,300 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-09-01 10:59:53,319 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 209 places, 233 transitions, 510 flow [2023-09-01 10:59:53,366 INFO L130 PetriNetUnfolder]: 81/579 cut-off events. [2023-09-01 10:59:53,367 INFO L131 PetriNetUnfolder]: For 48/48 co-relation queries the response was YES. [2023-09-01 10:59:53,372 INFO L83 FinitePrefix]: Finished finitePrefix Result has 634 conditions, 579 events. 81/579 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2270 event pairs, 6 based on Foata normal form. 0/493 useless extension candidates. Maximal degree in co-relation 405. Up to 32 conditions per place. [2023-09-01 10:59:53,372 INFO L82 GeneralOperation]: Start removeDead. Operand has 209 places, 233 transitions, 510 flow [2023-09-01 10:59:53,376 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 209 places, 233 transitions, 510 flow [2023-09-01 10:59:53,376 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-09-01 10:59:53,376 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 209 places, 233 transitions, 510 flow [2023-09-01 10:59:53,376 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 209 places, 233 transitions, 510 flow [2023-09-01 10:59:53,376 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 209 places, 233 transitions, 510 flow [2023-09-01 10:59:53,428 INFO L130 PetriNetUnfolder]: 81/579 cut-off events. [2023-09-01 10:59:53,429 INFO L131 PetriNetUnfolder]: For 48/48 co-relation queries the response was YES. [2023-09-01 10:59:53,433 INFO L83 FinitePrefix]: Finished finitePrefix Result has 634 conditions, 579 events. 81/579 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2270 event pairs, 6 based on Foata normal form. 0/493 useless extension candidates. Maximal degree in co-relation 405. Up to 32 conditions per place. [2023-09-01 10:59:53,444 INFO L119 LiptonReduction]: Number of co-enabled transitions 30384 [2023-09-01 10:59:56,348 INFO L134 LiptonReduction]: Checked pairs total: 94715 [2023-09-01 10:59:56,349 INFO L136 LiptonReduction]: Total number of compositions: 153 [2023-09-01 10:59:56,353 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-09-01 10:59:56,355 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;@32c116be, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-09-01 10:59:56,356 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-09-01 10:59:56,368 INFO L130 PetriNetUnfolder]: 22/129 cut-off events. [2023-09-01 10:59:56,368 INFO L131 PetriNetUnfolder]: For 22/22 co-relation queries the response was YES. [2023-09-01 10:59:56,368 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 10:59:56,368 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1] [2023-09-01 10:59:56,369 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-09-01 10:59:56,369 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 10:59:56,370 INFO L85 PathProgramCache]: Analyzing trace with hash -2147103074, now seen corresponding path program 1 times [2023-09-01 10:59:56,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 10:59:56,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017937850] [2023-09-01 10:59:56,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 10:59:56,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 10:59:56,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-09-01 10:59:56,418 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-09-01 10:59:56,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-09-01 10:59:56,449 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-09-01 10:59:56,449 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-09-01 10:59:56,450 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-09-01 10:59:56,450 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-09-01 10:59:56,450 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-09-01 10:59:56,450 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-09-01 10:59:56,451 WARN L233 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2023-09-01 10:59:56,451 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2023-09-01 10:59:56,483 INFO L144 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2023-09-01 10:59:56,486 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 242 places, 271 transitions, 602 flow [2023-09-01 10:59:56,585 INFO L130 PetriNetUnfolder]: 140/905 cut-off events. [2023-09-01 10:59:56,585 INFO L131 PetriNetUnfolder]: For 110/110 co-relation queries the response was YES. [2023-09-01 10:59:56,593 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1016 conditions, 905 events. 140/905 cut-off events. For 110/110 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 4184 event pairs, 23 based on Foata normal form. 0/775 useless extension candidates. Maximal degree in co-relation 624. Up to 80 conditions per place. [2023-09-01 10:59:56,593 INFO L82 GeneralOperation]: Start removeDead. Operand has 242 places, 271 transitions, 602 flow [2023-09-01 10:59:56,599 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 242 places, 271 transitions, 602 flow [2023-09-01 10:59:56,599 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-09-01 10:59:56,599 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 242 places, 271 transitions, 602 flow [2023-09-01 10:59:56,599 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 242 places, 271 transitions, 602 flow [2023-09-01 10:59:56,600 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 242 places, 271 transitions, 602 flow [2023-09-01 10:59:56,690 INFO L130 PetriNetUnfolder]: 140/905 cut-off events. [2023-09-01 10:59:56,690 INFO L131 PetriNetUnfolder]: For 110/110 co-relation queries the response was YES. [2023-09-01 10:59:56,702 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1016 conditions, 905 events. 140/905 cut-off events. For 110/110 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 4184 event pairs, 23 based on Foata normal form. 0/775 useless extension candidates. Maximal degree in co-relation 624. Up to 80 conditions per place. [2023-09-01 10:59:56,738 INFO L119 LiptonReduction]: Number of co-enabled transitions 45000 [2023-09-01 10:59:59,166 INFO L134 LiptonReduction]: Checked pairs total: 129227 [2023-09-01 10:59:59,167 INFO L136 LiptonReduction]: Total number of compositions: 174 [2023-09-01 10:59:59,170 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-09-01 10:59:59,171 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;@32c116be, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-09-01 10:59:59,171 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-09-01 10:59:59,184 INFO L130 PetriNetUnfolder]: 31/172 cut-off events. [2023-09-01 10:59:59,184 INFO L131 PetriNetUnfolder]: For 40/40 co-relation queries the response was YES. [2023-09-01 10:59:59,185 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 10:59:59,185 INFO L208 CegarLoopForPetriNet]: trace histogram [6, 5, 5, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 10:59:59,185 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-09-01 10:59:59,186 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 10:59:59,186 INFO L85 PathProgramCache]: Analyzing trace with hash 1627041130, now seen corresponding path program 1 times [2023-09-01 10:59:59,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 10:59:59,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099309609] [2023-09-01 10:59:59,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 10:59:59,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 10:59:59,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-09-01 10:59:59,224 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-09-01 10:59:59,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-09-01 10:59:59,246 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-09-01 10:59:59,252 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-09-01 10:59:59,253 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-09-01 10:59:59,253 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-09-01 10:59:59,253 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-09-01 10:59:59,253 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-09-01 10:59:59,254 WARN L233 ceAbstractionStarter]: 5 thread instances were not sufficient, I will increase this number and restart the analysis [2023-09-01 10:59:59,254 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 6 thread instances. [2023-09-01 10:59:59,285 INFO L144 ThreadInstanceAdder]: Constructed 6 joinOtherThreadTransitions. [2023-09-01 10:59:59,287 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 275 places, 309 transitions, 696 flow [2023-09-01 10:59:59,469 INFO L130 PetriNetUnfolder]: 263/1503 cut-off events. [2023-09-01 10:59:59,469 INFO L131 PetriNetUnfolder]: For 242/242 co-relation queries the response was YES. [2023-09-01 10:59:59,493 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1735 conditions, 1503 events. 263/1503 cut-off events. For 242/242 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 8279 event pairs, 72 based on Foata normal form. 0/1297 useless extension candidates. Maximal degree in co-relation 1004. Up to 192 conditions per place. [2023-09-01 10:59:59,494 INFO L82 GeneralOperation]: Start removeDead. Operand has 275 places, 309 transitions, 696 flow [2023-09-01 10:59:59,505 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 275 places, 309 transitions, 696 flow [2023-09-01 10:59:59,506 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-09-01 10:59:59,506 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 275 places, 309 transitions, 696 flow [2023-09-01 10:59:59,506 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 275 places, 309 transitions, 696 flow [2023-09-01 10:59:59,507 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 275 places, 309 transitions, 696 flow [2023-09-01 10:59:59,679 INFO L130 PetriNetUnfolder]: 263/1503 cut-off events. [2023-09-01 10:59:59,679 INFO L131 PetriNetUnfolder]: For 242/242 co-relation queries the response was YES. [2023-09-01 10:59:59,703 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1735 conditions, 1503 events. 263/1503 cut-off events. For 242/242 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 8279 event pairs, 72 based on Foata normal form. 0/1297 useless extension candidates. Maximal degree in co-relation 1004. Up to 192 conditions per place. [2023-09-01 10:59:59,780 INFO L119 LiptonReduction]: Number of co-enabled transitions 62424 [2023-09-01 11:00:02,488 INFO L134 LiptonReduction]: Checked pairs total: 206454 [2023-09-01 11:00:02,488 INFO L136 LiptonReduction]: Total number of compositions: 195 [2023-09-01 11:00:02,489 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-09-01 11:00:02,490 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;@32c116be, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-09-01 11:00:02,490 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-09-01 11:00:02,502 INFO L130 PetriNetUnfolder]: 41/221 cut-off events. [2023-09-01 11:00:02,503 INFO L131 PetriNetUnfolder]: For 66/66 co-relation queries the response was YES. [2023-09-01 11:00:02,503 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 11:00:02,503 INFO L208 CegarLoopForPetriNet]: trace histogram [7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 11:00:02,503 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-09-01 11:00:02,503 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 11:00:02,503 INFO L85 PathProgramCache]: Analyzing trace with hash -1190858011, now seen corresponding path program 1 times [2023-09-01 11:00:02,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 11:00:02,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307968308] [2023-09-01 11:00:02,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 11:00:02,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 11:00:02,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-09-01 11:00:02,528 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-09-01 11:00:02,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-09-01 11:00:02,539 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-09-01 11:00:02,539 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-09-01 11:00:02,539 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-09-01 11:00:02,539 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-09-01 11:00:02,539 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-09-01 11:00:02,540 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-09-01 11:00:02,540 WARN L233 ceAbstractionStarter]: 6 thread instances were not sufficient, I will increase this number and restart the analysis [2023-09-01 11:00:02,540 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 7 thread instances. [2023-09-01 11:00:02,568 INFO L144 ThreadInstanceAdder]: Constructed 7 joinOtherThreadTransitions. [2023-09-01 11:00:02,570 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 308 places, 347 transitions, 792 flow [2023-09-01 11:00:03,020 INFO L130 PetriNetUnfolder]: 530/2661 cut-off events. [2023-09-01 11:00:03,021 INFO L131 PetriNetUnfolder]: For 525/525 co-relation queries the response was YES. [2023-09-01 11:00:03,056 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3159 conditions, 2661 events. 530/2661 cut-off events. For 525/525 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 17467 event pairs, 201 based on Foata normal form. 0/2315 useless extension candidates. Maximal degree in co-relation 1721. Up to 448 conditions per place. [2023-09-01 11:00:03,057 INFO L82 GeneralOperation]: Start removeDead. Operand has 308 places, 347 transitions, 792 flow [2023-09-01 11:00:03,072 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 308 places, 347 transitions, 792 flow [2023-09-01 11:00:03,073 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-09-01 11:00:03,073 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 308 places, 347 transitions, 792 flow [2023-09-01 11:00:03,073 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 308 places, 347 transitions, 792 flow [2023-09-01 11:00:03,073 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 308 places, 347 transitions, 792 flow [2023-09-01 11:00:03,518 INFO L130 PetriNetUnfolder]: 530/2661 cut-off events. [2023-09-01 11:00:03,518 INFO L131 PetriNetUnfolder]: For 525/525 co-relation queries the response was YES. [2023-09-01 11:00:03,545 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3159 conditions, 2661 events. 530/2661 cut-off events. For 525/525 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 17467 event pairs, 201 based on Foata normal form. 0/2315 useless extension candidates. Maximal degree in co-relation 1721. Up to 448 conditions per place. [2023-09-01 11:00:03,615 INFO L119 LiptonReduction]: Number of co-enabled transitions 82656 [2023-09-01 11:00:06,264 INFO L134 LiptonReduction]: Checked pairs total: 249313 [2023-09-01 11:00:06,264 INFO L136 LiptonReduction]: Total number of compositions: 216 [2023-09-01 11:00:06,266 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-09-01 11:00:06,267 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;@32c116be, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-09-01 11:00:06,268 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-09-01 11:00:06,285 INFO L130 PetriNetUnfolder]: 53/277 cut-off events. [2023-09-01 11:00:06,285 INFO L131 PetriNetUnfolder]: For 103/103 co-relation queries the response was YES. [2023-09-01 11:00:06,285 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 11:00:06,285 INFO L208 CegarLoopForPetriNet]: trace histogram [8, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 11:00:06,285 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-09-01 11:00:06,286 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 11:00:06,286 INFO L85 PathProgramCache]: Analyzing trace with hash -1911528724, now seen corresponding path program 1 times [2023-09-01 11:00:06,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 11:00:06,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254237945] [2023-09-01 11:00:06,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 11:00:06,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 11:00:06,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-09-01 11:00:06,328 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-09-01 11:00:06,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-09-01 11:00:06,354 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-09-01 11:00:06,356 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-09-01 11:00:06,356 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-09-01 11:00:06,356 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-09-01 11:00:06,356 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-09-01 11:00:06,357 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-09-01 11:00:06,357 WARN L233 ceAbstractionStarter]: 7 thread instances were not sufficient, I will increase this number and restart the analysis [2023-09-01 11:00:06,357 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 8 thread instances. [2023-09-01 11:00:06,377 INFO L144 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2023-09-01 11:00:06,386 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 341 places, 385 transitions, 890 flow [2023-09-01 11:00:07,297 INFO L130 PetriNetUnfolder]: 1117/4971 cut-off events. [2023-09-01 11:00:07,298 INFO L131 PetriNetUnfolder]: For 1136/1136 co-relation queries the response was YES. [2023-09-01 11:00:07,372 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6056 conditions, 4971 events. 1117/4971 cut-off events. For 1136/1136 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 38730 event pairs, 522 based on Foata normal form. 0/4357 useless extension candidates. Maximal degree in co-relation 3143. Up to 1024 conditions per place. [2023-09-01 11:00:07,372 INFO L82 GeneralOperation]: Start removeDead. Operand has 341 places, 385 transitions, 890 flow [2023-09-01 11:00:07,410 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 341 places, 385 transitions, 890 flow [2023-09-01 11:00:07,411 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-09-01 11:00:07,411 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 341 places, 385 transitions, 890 flow [2023-09-01 11:00:07,411 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 341 places, 385 transitions, 890 flow [2023-09-01 11:00:07,411 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 341 places, 385 transitions, 890 flow [2023-09-01 11:00:08,386 INFO L130 PetriNetUnfolder]: 1117/4971 cut-off events. [2023-09-01 11:00:08,387 INFO L131 PetriNetUnfolder]: For 1136/1136 co-relation queries the response was YES. [2023-09-01 11:00:08,459 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6056 conditions, 4971 events. 1117/4971 cut-off events. For 1136/1136 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 38730 event pairs, 522 based on Foata normal form. 0/4357 useless extension candidates. Maximal degree in co-relation 3143. Up to 1024 conditions per place. [2023-09-01 11:00:08,623 INFO L119 LiptonReduction]: Number of co-enabled transitions 105696 [2023-09-01 11:00:11,875 INFO L134 LiptonReduction]: Checked pairs total: 357916 [2023-09-01 11:00:11,876 INFO L136 LiptonReduction]: Total number of compositions: 237 [2023-09-01 11:00:11,877 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-09-01 11:00:11,878 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;@32c116be, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-09-01 11:00:11,879 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-09-01 11:00:11,901 INFO L130 PetriNetUnfolder]: 68/343 cut-off events. [2023-09-01 11:00:11,901 INFO L131 PetriNetUnfolder]: For 154/154 co-relation queries the response was YES. [2023-09-01 11:00:11,901 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 11:00:11,901 INFO L208 CegarLoopForPetriNet]: trace histogram [9, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 11:00:11,901 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-09-01 11:00:11,902 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 11:00:11,902 INFO L85 PathProgramCache]: Analyzing trace with hash 1054347176, now seen corresponding path program 1 times [2023-09-01 11:00:11,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 11:00:11,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208683750] [2023-09-01 11:00:11,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 11:00:11,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 11:00:11,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-09-01 11:00:11,935 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-09-01 11:00:11,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-09-01 11:00:11,961 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-09-01 11:00:11,961 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-09-01 11:00:11,961 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-09-01 11:00:11,962 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-09-01 11:00:11,962 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-09-01 11:00:11,962 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-09-01 11:00:11,962 WARN L233 ceAbstractionStarter]: 8 thread instances were not sufficient, I will increase this number and restart the analysis [2023-09-01 11:00:11,962 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 9 thread instances. [2023-09-01 11:00:11,989 INFO L144 ThreadInstanceAdder]: Constructed 9 joinOtherThreadTransitions. [2023-09-01 11:00:11,991 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 374 places, 423 transitions, 990 flow [2023-09-01 11:00:13,803 INFO L130 PetriNetUnfolder]: 2408/9649 cut-off events. [2023-09-01 11:00:13,803 INFO L131 PetriNetUnfolder]: For 2460/2460 co-relation queries the response was YES. [2023-09-01 11:00:13,975 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12026 conditions, 9649 events. 2408/9649 cut-off events. For 2460/2460 co-relation queries the response was YES. Maximal size of possible extension queue 195. Compared 87511 event pairs, 1291 based on Foata normal form. 0/8511 useless extension candidates. Maximal degree in co-relation 6038. Up to 2304 conditions per place. [2023-09-01 11:00:13,975 INFO L82 GeneralOperation]: Start removeDead. Operand has 374 places, 423 transitions, 990 flow [2023-09-01 11:00:14,052 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 374 places, 423 transitions, 990 flow [2023-09-01 11:00:14,052 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-09-01 11:00:14,052 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 374 places, 423 transitions, 990 flow [2023-09-01 11:00:14,053 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 374 places, 423 transitions, 990 flow [2023-09-01 11:00:14,053 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 374 places, 423 transitions, 990 flow [2023-09-01 11:00:16,093 INFO L130 PetriNetUnfolder]: 2408/9649 cut-off events. [2023-09-01 11:00:16,093 INFO L131 PetriNetUnfolder]: For 2460/2460 co-relation queries the response was YES. [2023-09-01 11:00:16,294 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12026 conditions, 9649 events. 2408/9649 cut-off events. For 2460/2460 co-relation queries the response was YES. Maximal size of possible extension queue 195. Compared 87511 event pairs, 1291 based on Foata normal form. 0/8511 useless extension candidates. Maximal degree in co-relation 6038. Up to 2304 conditions per place. [2023-09-01 11:00:16,891 INFO L119 LiptonReduction]: Number of co-enabled transitions 131544 [2023-09-01 11:00:20,065 INFO L134 LiptonReduction]: Checked pairs total: 453920 [2023-09-01 11:00:20,066 INFO L136 LiptonReduction]: Total number of compositions: 257 [2023-09-01 11:00:20,068 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-09-01 11:00:20,069 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;@32c116be, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-09-01 11:00:20,070 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-09-01 11:00:20,104 INFO L130 PetriNetUnfolder]: 98/446 cut-off events. [2023-09-01 11:00:20,104 INFO L131 PetriNetUnfolder]: For 223/223 co-relation queries the response was YES. [2023-09-01 11:00:20,105 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 11:00:20,105 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 11:00:20,105 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-09-01 11:00:20,105 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 11:00:20,105 INFO L85 PathProgramCache]: Analyzing trace with hash 534894791, now seen corresponding path program 1 times [2023-09-01 11:00:20,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 11:00:20,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824668053] [2023-09-01 11:00:20,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 11:00:20,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 11:00:20,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-09-01 11:00:20,154 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-09-01 11:00:20,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-09-01 11:00:20,187 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-09-01 11:00:20,188 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-09-01 11:00:20,188 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-09-01 11:00:20,188 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-09-01 11:00:20,188 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-09-01 11:00:20,189 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-09-01 11:00:20,189 WARN L233 ceAbstractionStarter]: 9 thread instances were not sufficient, I will increase this number and restart the analysis [2023-09-01 11:00:20,189 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 10 thread instances. [2023-09-01 11:00:20,222 INFO L144 ThreadInstanceAdder]: Constructed 10 joinOtherThreadTransitions. [2023-09-01 11:00:20,225 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 407 places, 461 transitions, 1092 flow [2023-09-01 11:00:24,757 INFO L130 PetriNetUnfolder]: 5235/19191 cut-off events. [2023-09-01 11:00:24,758 INFO L131 PetriNetUnfolder]: For 5330/5330 co-relation queries the response was YES. [2023-09-01 11:00:25,196 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24397 conditions, 19191 events. 5235/19191 cut-off events. For 5330/5330 co-relation queries the response was YES. Maximal size of possible extension queue 373. Compared 195624 event pairs, 3084 based on Foata normal form. 0/17017 useless extension candidates. Maximal degree in co-relation 12006. Up to 5120 conditions per place. [2023-09-01 11:00:25,196 INFO L82 GeneralOperation]: Start removeDead. Operand has 407 places, 461 transitions, 1092 flow [2023-09-01 11:00:25,381 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 407 places, 461 transitions, 1092 flow [2023-09-01 11:00:25,382 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-09-01 11:00:25,382 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 407 places, 461 transitions, 1092 flow [2023-09-01 11:00:25,382 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 407 places, 461 transitions, 1092 flow [2023-09-01 11:00:25,382 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 407 places, 461 transitions, 1092 flow [2023-09-01 11:00:29,682 INFO L130 PetriNetUnfolder]: 5235/19191 cut-off events. [2023-09-01 11:00:29,683 INFO L131 PetriNetUnfolder]: For 5330/5330 co-relation queries the response was YES. [2023-09-01 11:00:30,029 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24397 conditions, 19191 events. 5235/19191 cut-off events. For 5330/5330 co-relation queries the response was YES. Maximal size of possible extension queue 373. Compared 195624 event pairs, 3084 based on Foata normal form. 0/17017 useless extension candidates. Maximal degree in co-relation 12006. Up to 5120 conditions per place. [2023-09-01 11:00:31,132 INFO L119 LiptonReduction]: Number of co-enabled transitions 160200 [2023-09-01 11:00:34,649 INFO L134 LiptonReduction]: Checked pairs total: 484924 [2023-09-01 11:00:34,649 INFO L136 LiptonReduction]: Total number of compositions: 280 [2023-09-01 11:00:34,650 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-09-01 11:00:34,651 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;@32c116be, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-09-01 11:00:34,651 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-09-01 11:00:34,691 INFO L130 PetriNetUnfolder]: 128/557 cut-off events. [2023-09-01 11:00:34,691 INFO L131 PetriNetUnfolder]: For 317/317 co-relation queries the response was YES. [2023-09-01 11:00:34,691 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 11:00:34,691 INFO L208 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 11:00:34,692 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-09-01 11:00:34,692 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 11:00:34,692 INFO L85 PathProgramCache]: Analyzing trace with hash 887428732, now seen corresponding path program 1 times [2023-09-01 11:00:34,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 11:00:34,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345753190] [2023-09-01 11:00:34,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 11:00:34,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 11:00:34,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-09-01 11:00:34,716 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-09-01 11:00:34,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-09-01 11:00:34,744 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-09-01 11:00:34,744 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-09-01 11:00:34,744 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-09-01 11:00:34,745 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-09-01 11:00:34,745 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-09-01 11:00:34,745 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-09-01 11:00:34,745 WARN L233 ceAbstractionStarter]: 10 thread instances were not sufficient, I will increase this number and restart the analysis [2023-09-01 11:00:34,745 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 11 thread instances. [2023-09-01 11:00:34,774 INFO L144 ThreadInstanceAdder]: Constructed 11 joinOtherThreadTransitions. [2023-09-01 11:00:34,777 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 440 places, 499 transitions, 1196 flow [2023-09-01 11:00:44,325 INFO L130 PetriNetUnfolder]: 11390/38717 cut-off events. [2023-09-01 11:00:44,325 INFO L131 PetriNetUnfolder]: For 11539/11539 co-relation queries the response was YES. [2023-09-01 11:00:45,722 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50081 conditions, 38717 events. 11390/38717 cut-off events. For 11539/11539 co-relation queries the response was YES. Maximal size of possible extension queue 730. Compared 439453 event pairs, 7181 based on Foata normal form. 0/34483 useless extension candidates. Maximal degree in co-relation 24375. Up to 11264 conditions per place. [2023-09-01 11:00:45,723 INFO L82 GeneralOperation]: Start removeDead. Operand has 440 places, 499 transitions, 1196 flow [2023-09-01 11:00:46,340 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 440 places, 499 transitions, 1196 flow [2023-09-01 11:00:46,340 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-09-01 11:00:46,340 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 440 places, 499 transitions, 1196 flow [2023-09-01 11:00:46,341 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 440 places, 499 transitions, 1196 flow [2023-09-01 11:00:46,341 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 440 places, 499 transitions, 1196 flow [2023-09-01 11:00:55,738 INFO L130 PetriNetUnfolder]: 11390/38717 cut-off events. [2023-09-01 11:00:55,738 INFO L131 PetriNetUnfolder]: For 11539/11539 co-relation queries the response was YES. [2023-09-01 11:00:56,630 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50081 conditions, 38717 events. 11390/38717 cut-off events. For 11539/11539 co-relation queries the response was YES. Maximal size of possible extension queue 730. Compared 439453 event pairs, 7181 based on Foata normal form. 0/34483 useless extension candidates. Maximal degree in co-relation 24375. Up to 11264 conditions per place. [2023-09-01 11:00:58,697 INFO L119 LiptonReduction]: Number of co-enabled transitions 191664 [2023-09-01 11:01:02,222 INFO L134 LiptonReduction]: Checked pairs total: 586549 [2023-09-01 11:01:02,222 INFO L136 LiptonReduction]: Total number of compositions: 301 [2023-09-01 11:01:02,224 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-09-01 11:01:02,224 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;@32c116be, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-09-01 11:01:02,224 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-09-01 11:01:02,285 INFO L130 PetriNetUnfolder]: 173/706 cut-off events. [2023-09-01 11:01:02,285 INFO L131 PetriNetUnfolder]: For 446/446 co-relation queries the response was YES. [2023-09-01 11:01:02,285 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 11:01:02,286 INFO L208 CegarLoopForPetriNet]: trace histogram [12, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 11:01:02,286 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-09-01 11:01:02,287 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 11:01:02,287 INFO L85 PathProgramCache]: Analyzing trace with hash -1830681937, now seen corresponding path program 1 times [2023-09-01 11:01:02,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 11:01:02,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784531278] [2023-09-01 11:01:02,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 11:01:02,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 11:01:02,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-09-01 11:01:02,315 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-09-01 11:01:02,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-09-01 11:01:02,337 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-09-01 11:01:02,337 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-09-01 11:01:02,337 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-09-01 11:01:02,337 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-09-01 11:01:02,338 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-09-01 11:01:02,339 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-09-01 11:01:02,339 WARN L233 ceAbstractionStarter]: 11 thread instances were not sufficient, I will increase this number and restart the analysis [2023-09-01 11:01:02,339 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 12 thread instances. [2023-09-01 11:01:02,375 INFO L144 ThreadInstanceAdder]: Constructed 12 joinOtherThreadTransitions. [2023-09-01 11:01:02,379 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 473 places, 537 transitions, 1302 flow [2023-09-01 11:01:23,425 INFO L130 PetriNetUnfolder]: 24713/78723 cut-off events. [2023-09-01 11:01:23,425 INFO L131 PetriNetUnfolder]: For 24928/24928 co-relation queries the response was YES. [2023-09-01 11:01:26,502 INFO L83 FinitePrefix]: Finished finitePrefix Result has 103414 conditions, 78723 events. 24713/78723 cut-off events. For 24928/24928 co-relation queries the response was YES. Maximal size of possible extension queue 1375. Compared 982420 event pairs, 16398 based on Foata normal form. 0/70381 useless extension candidates. Maximal degree in co-relation 50057. Up to 24576 conditions per place. [2023-09-01 11:01:26,502 INFO L82 GeneralOperation]: Start removeDead. Operand has 473 places, 537 transitions, 1302 flow [2023-09-01 11:01:27,643 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 473 places, 537 transitions, 1302 flow [2023-09-01 11:01:27,643 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-09-01 11:01:27,643 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 473 places, 537 transitions, 1302 flow [2023-09-01 11:01:27,644 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 473 places, 537 transitions, 1302 flow [2023-09-01 11:01:27,644 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 473 places, 537 transitions, 1302 flow [2023-09-01 11:01:49,750 INFO L130 PetriNetUnfolder]: 24713/78723 cut-off events. [2023-09-01 11:01:49,751 INFO L131 PetriNetUnfolder]: For 24928/24928 co-relation queries the response was YES. [2023-09-01 11:01:54,693 INFO L83 FinitePrefix]: Finished finitePrefix Result has 103414 conditions, 78723 events. 24713/78723 cut-off events. For 24928/24928 co-relation queries the response was YES. Maximal size of possible extension queue 1375. Compared 982420 event pairs, 16398 based on Foata normal form. 0/70381 useless extension candidates. Maximal degree in co-relation 50057. Up to 24576 conditions per place. [2023-09-01 11:02:02,411 INFO L119 LiptonReduction]: Number of co-enabled transitions 225936 [2023-09-01 11:02:05,823 INFO L134 LiptonReduction]: Checked pairs total: 715578 [2023-09-01 11:02:05,823 INFO L136 LiptonReduction]: Total number of compositions: 322 [2023-09-01 11:02:05,825 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-09-01 11:02:05,825 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;@32c116be, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-09-01 11:02:05,825 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-09-01 11:02:05,910 INFO L130 PetriNetUnfolder]: 242/913 cut-off events. [2023-09-01 11:02:05,910 INFO L131 PetriNetUnfolder]: For 624/624 co-relation queries the response was YES. [2023-09-01 11:02:05,911 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 11:02:05,911 INFO L208 CegarLoopForPetriNet]: trace histogram [13, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 11:02:05,911 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-09-01 11:02:05,911 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 11:02:05,911 INFO L85 PathProgramCache]: Analyzing trace with hash -1511832203, now seen corresponding path program 1 times [2023-09-01 11:02:05,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 11:02:05,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957364229] [2023-09-01 11:02:05,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 11:02:05,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 11:02:05,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-09-01 11:02:05,935 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-09-01 11:02:05,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-09-01 11:02:05,955 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-09-01 11:02:05,955 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-09-01 11:02:05,956 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-09-01 11:02:05,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-09-01 11:02:05,956 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-09-01 11:02:05,958 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-09-01 11:02:05,959 WARN L233 ceAbstractionStarter]: 12 thread instances were not sufficient, I will increase this number and restart the analysis [2023-09-01 11:02:05,959 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 13 thread instances. [2023-09-01 11:02:05,993 INFO L144 ThreadInstanceAdder]: Constructed 13 joinOtherThreadTransitions. [2023-09-01 11:02:05,997 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 506 places, 575 transitions, 1410 flow