./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_41-trylock_racefree.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_41-trylock_racefree.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash af00d5f4cc6a18cb9fd8a5151467217fe3ddb5ee0fa30b2cfbd9dd374105ee15 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-29 02:52:20,548 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 02:52:20,550 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 02:52:20,576 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 02:52:20,577 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 02:52:20,579 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 02:52:20,581 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 02:52:20,584 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 02:52:20,587 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 02:52:20,592 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 02:52:20,593 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 02:52:20,595 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 02:52:20,595 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 02:52:20,597 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 02:52:20,599 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 02:52:20,602 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 02:52:20,603 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 02:52:20,604 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 02:52:20,606 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 02:52:20,611 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 02:52:20,625 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 02:52:20,626 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 02:52:20,627 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 02:52:20,628 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 02:52:20,635 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 02:52:20,635 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 02:52:20,635 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 02:52:20,638 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 02:52:20,638 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 02:52:20,639 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 02:52:20,639 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 02:52:20,641 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 02:52:20,643 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 02:52:20,643 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 02:52:20,644 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 02:52:20,644 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 02:52:20,645 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 02:52:20,645 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 02:52:20,645 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 02:52:20,646 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 02:52:20,647 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 02:52:20,648 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-29 02:52:20,687 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 02:52:20,688 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 02:52:20,689 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 02:52:20,689 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 02:52:20,690 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 02:52:20,690 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 02:52:20,691 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 02:52:20,691 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 02:52:20,691 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 02:52:20,691 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 02:52:20,692 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 02:52:20,692 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 02:52:20,692 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 02:52:20,693 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 02:52:20,693 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 02:52:20,693 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-29 02:52:20,693 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 02:52:20,693 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-29 02:52:20,694 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-29 02:52:20,694 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 02:52:20,694 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-29 02:52:20,694 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 02:52:20,694 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-29 02:52:20,694 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 02:52:20,695 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 02:52:20,695 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 02:52:20,695 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 02:52:20,695 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 02:52:20,696 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 02:52:20,696 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-29 02:52:20,696 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 02:52:20,696 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 02:52:20,696 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 02:52:20,697 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-29 02:52:20,697 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 02:52:20,697 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 02:52:20,697 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 02:52:20,697 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> af00d5f4cc6a18cb9fd8a5151467217fe3ddb5ee0fa30b2cfbd9dd374105ee15 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-29 02:52:21,024 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 02:52:21,046 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 02:52:21,049 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 02:52:21,051 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 02:52:21,051 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 02:52:21,052 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_41-trylock_racefree.i [2023-08-29 02:52:22,305 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 02:52:22,542 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 02:52:22,545 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_41-trylock_racefree.i [2023-08-29 02:52:22,571 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2082c8de9/9d4f923ec81c493699645e18b018b03b/FLAGf82e3847f [2023-08-29 02:52:22,584 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2082c8de9/9d4f923ec81c493699645e18b018b03b [2023-08-29 02:52:22,585 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 02:52:22,586 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 02:52:22,589 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 02:52:22,589 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 02:52:22,591 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 02:52:22,591 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 02:52:22" (1/1) ... [2023-08-29 02:52:22,592 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40d4dfd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:52:22, skipping insertion in model container [2023-08-29 02:52:22,593 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 02:52:22" (1/1) ... [2023-08-29 02:52:22,598 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 02:52:22,641 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 02:52:22,984 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_41-trylock_racefree.i[30176,30189] [2023-08-29 02:52:23,007 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 02:52:23,021 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 02:52:23,066 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_41-trylock_racefree.i[30176,30189] [2023-08-29 02:52:23,078 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 02:52:23,125 INFO L208 MainTranslator]: Completed translation [2023-08-29 02:52:23,126 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:52:23 WrapperNode [2023-08-29 02:52:23,126 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 02:52:23,127 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 02:52:23,127 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 02:52:23,127 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 02:52:23,134 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:52:23" (1/1) ... [2023-08-29 02:52:23,160 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:52:23" (1/1) ... [2023-08-29 02:52:23,189 INFO L138 Inliner]: procedures = 171, calls = 30, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 84 [2023-08-29 02:52:23,190 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 02:52:23,192 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 02:52:23,192 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 02:52:23,192 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 02:52:23,200 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:52:23" (1/1) ... [2023-08-29 02:52:23,201 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:52:23" (1/1) ... [2023-08-29 02:52:23,216 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:52:23" (1/1) ... [2023-08-29 02:52:23,220 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:52:23" (1/1) ... [2023-08-29 02:52:23,229 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:52:23" (1/1) ... [2023-08-29 02:52:23,240 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:52:23" (1/1) ... [2023-08-29 02:52:23,242 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:52:23" (1/1) ... [2023-08-29 02:52:23,248 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:52:23" (1/1) ... [2023-08-29 02:52:23,250 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 02:52:23,251 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 02:52:23,251 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 02:52:23,256 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 02:52:23,257 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:52:23" (1/1) ... [2023-08-29 02:52:23,264 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 02:52:23,277 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 02:52:23,298 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-29 02:52:23,324 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-29 02:52:23,338 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-29 02:52:23,338 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-29 02:52:23,339 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-29 02:52:23,339 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-29 02:52:23,339 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 02:52:23,339 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-29 02:52:23,339 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-29 02:52:23,339 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 02:52:23,340 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexTryLock [2023-08-29 02:52:23,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-29 02:52:23,340 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 02:52:23,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 02:52:23,341 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-29 02:52:23,447 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 02:52:23,448 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 02:52:23,636 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 02:52:23,645 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 02:52:23,646 INFO L302 CfgBuilder]: Removed 11 assume(true) statements. [2023-08-29 02:52:23,647 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 02:52:23 BoogieIcfgContainer [2023-08-29 02:52:23,653 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 02:52:23,655 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 02:52:23,667 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 02:52:23,670 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 02:52:23,671 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 02:52:22" (1/3) ... [2023-08-29 02:52:23,671 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ced9675 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 02:52:23, skipping insertion in model container [2023-08-29 02:52:23,672 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:52:23" (2/3) ... [2023-08-29 02:52:23,672 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ced9675 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 02:52:23, skipping insertion in model container [2023-08-29 02:52:23,672 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 02:52:23" (3/3) ... [2023-08-29 02:52:23,673 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_41-trylock_racefree.i [2023-08-29 02:52:23,685 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-29 02:52:23,695 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 02:52:23,708 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-08-29 02:52:23,709 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 02:52:23,785 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-29 02:52:23,824 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 116 places, 127 transitions, 262 flow [2023-08-29 02:52:23,880 INFO L130 PetriNetUnfolder]: 21/172 cut-off events. [2023-08-29 02:52:23,881 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-29 02:52:23,887 INFO L83 FinitePrefix]: Finished finitePrefix Result has 178 conditions, 172 events. 21/172 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 520 event pairs, 0 based on Foata normal form. 0/140 useless extension candidates. Maximal degree in co-relation 94. Up to 6 conditions per place. [2023-08-29 02:52:23,887 INFO L82 GeneralOperation]: Start removeDead. Operand has 116 places, 127 transitions, 262 flow [2023-08-29 02:52:23,892 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 116 places, 127 transitions, 262 flow [2023-08-29 02:52:23,895 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 02:52:23,903 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 116 places, 127 transitions, 262 flow [2023-08-29 02:52:23,905 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 116 places, 127 transitions, 262 flow [2023-08-29 02:52:23,906 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 116 places, 127 transitions, 262 flow [2023-08-29 02:52:23,939 INFO L130 PetriNetUnfolder]: 21/172 cut-off events. [2023-08-29 02:52:23,939 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-29 02:52:23,940 INFO L83 FinitePrefix]: Finished finitePrefix Result has 178 conditions, 172 events. 21/172 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 520 event pairs, 0 based on Foata normal form. 0/140 useless extension candidates. Maximal degree in co-relation 94. Up to 6 conditions per place. [2023-08-29 02:52:23,943 INFO L119 LiptonReduction]: Number of co-enabled transitions 4488 [2023-08-29 02:52:26,631 INFO L134 LiptonReduction]: Checked pairs total: 11399 [2023-08-29 02:52:26,632 INFO L136 LiptonReduction]: Total number of compositions: 90 [2023-08-29 02:52:26,644 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 02:52:26,649 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;@400b496d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 02:52:26,649 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2023-08-29 02:52:26,653 INFO L130 PetriNetUnfolder]: 1/12 cut-off events. [2023-08-29 02:52:26,653 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 02:52:26,653 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:52:26,654 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-29 02:52:26,654 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr2ASSERT_VIOLATIONDATA_RACE, t_funErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-08-29 02:52:26,658 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:52:26,658 INFO L85 PathProgramCache]: Analyzing trace with hash 455846171, now seen corresponding path program 1 times [2023-08-29 02:52:26,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:52:26,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639162950] [2023-08-29 02:52:26,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:52:26,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:52:26,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:52:26,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:52:26,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:52:26,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639162950] [2023-08-29 02:52:26,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [639162950] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:52:26,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:52:26,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 02:52:26,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064758448] [2023-08-29 02:52:26,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:52:26,923 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 02:52:26,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:52:26,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 02:52:26,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 02:52:26,978 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 217 [2023-08-29 02:52:26,982 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 51 transitions, 110 flow. Second operand has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:52:26,983 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:52:26,983 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 217 [2023-08-29 02:52:26,984 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:52:27,073 INFO L130 PetriNetUnfolder]: 145/368 cut-off events. [2023-08-29 02:52:27,073 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-29 02:52:27,075 INFO L83 FinitePrefix]: Finished finitePrefix Result has 694 conditions, 368 events. 145/368 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1705 event pairs, 0 based on Foata normal form. 49/348 useless extension candidates. Maximal degree in co-relation 648. Up to 293 conditions per place. [2023-08-29 02:52:27,077 INFO L137 encePairwiseOnDemand]: 204/217 looper letters, 37 selfloop transitions, 2 changer transitions 2/54 dead transitions. [2023-08-29 02:52:27,077 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 54 transitions, 198 flow [2023-08-29 02:52:27,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 02:52:27,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 02:52:27,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 382 transitions. [2023-08-29 02:52:27,090 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5867895545314901 [2023-08-29 02:52:27,090 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 382 transitions. [2023-08-29 02:52:27,091 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 382 transitions. [2023-08-29 02:52:27,092 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:52:27,094 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 382 transitions. [2023-08-29 02:52:27,098 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 127.33333333333333) internal successors, (382), 3 states have internal predecessors, (382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:52:27,106 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 217.0) internal successors, (868), 4 states have internal predecessors, (868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:52:27,106 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 217.0) internal successors, (868), 4 states have internal predecessors, (868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:52:27,108 INFO L175 Difference]: Start difference. First operand has 43 places, 51 transitions, 110 flow. Second operand 3 states and 382 transitions. [2023-08-29 02:52:27,109 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 54 transitions, 198 flow [2023-08-29 02:52:27,112 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 54 transitions, 198 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 02:52:27,114 INFO L231 Difference]: Finished difference. Result has 45 places, 39 transitions, 91 flow [2023-08-29 02:52:27,116 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=217, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=91, PETRI_PLACES=45, PETRI_TRANSITIONS=39} [2023-08-29 02:52:27,119 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 2 predicate places. [2023-08-29 02:52:27,119 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 39 transitions, 91 flow [2023-08-29 02:52:27,120 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:52:27,120 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:52:27,120 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:52:27,121 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-29 02:52:27,122 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr2ASSERT_VIOLATIONDATA_RACE, t_funErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-08-29 02:52:27,123 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:52:27,125 INFO L85 PathProgramCache]: Analyzing trace with hash -874496212, now seen corresponding path program 1 times [2023-08-29 02:52:27,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:52:27,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653972054] [2023-08-29 02:52:27,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:52:27,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:52:27,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:52:27,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:52:27,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:52:27,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653972054] [2023-08-29 02:52:27,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653972054] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:52:27,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:52:27,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 02:52:27,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676355041] [2023-08-29 02:52:27,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:52:27,209 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 02:52:27,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:52:27,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 02:52:27,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 02:52:27,236 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 217 [2023-08-29 02:52:27,237 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 39 transitions, 91 flow. Second operand has 3 states, 3 states have (on average 103.0) internal successors, (309), 3 states have internal predecessors, (309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:52:27,237 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:52:27,237 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 217 [2023-08-29 02:52:27,238 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:52:27,378 INFO L130 PetriNetUnfolder]: 244/564 cut-off events. [2023-08-29 02:52:27,378 INFO L131 PetriNetUnfolder]: For 26/26 co-relation queries the response was YES. [2023-08-29 02:52:27,404 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1142 conditions, 564 events. 244/564 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 2593 event pairs, 82 based on Foata normal form. 0/495 useless extension candidates. Maximal degree in co-relation 1122. Up to 306 conditions per place. [2023-08-29 02:52:27,407 INFO L137 encePairwiseOnDemand]: 208/217 looper letters, 44 selfloop transitions, 6 changer transitions 3/59 dead transitions. [2023-08-29 02:52:27,407 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 59 transitions, 242 flow [2023-08-29 02:52:27,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 02:52:27,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 02:52:27,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 359 transitions. [2023-08-29 02:52:27,416 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5514592933947773 [2023-08-29 02:52:27,416 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 359 transitions. [2023-08-29 02:52:27,416 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 359 transitions. [2023-08-29 02:52:27,416 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:52:27,416 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 359 transitions. [2023-08-29 02:52:27,418 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:52:27,419 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 217.0) internal successors, (868), 4 states have internal predecessors, (868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:52:27,420 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 217.0) internal successors, (868), 4 states have internal predecessors, (868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:52:27,420 INFO L175 Difference]: Start difference. First operand has 45 places, 39 transitions, 91 flow. Second operand 3 states and 359 transitions. [2023-08-29 02:52:27,420 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 59 transitions, 242 flow [2023-08-29 02:52:27,421 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 59 transitions, 236 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 02:52:27,422 INFO L231 Difference]: Finished difference. Result has 44 places, 41 transitions, 125 flow [2023-08-29 02:52:27,422 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=217, PETRI_DIFFERENCE_MINUEND_FLOW=83, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=125, PETRI_PLACES=44, PETRI_TRANSITIONS=41} [2023-08-29 02:52:27,423 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 1 predicate places. [2023-08-29 02:52:27,423 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 41 transitions, 125 flow [2023-08-29 02:52:27,423 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 103.0) internal successors, (309), 3 states have internal predecessors, (309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:52:27,423 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:52:27,424 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:52:27,424 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-29 02:52:27,424 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr2ASSERT_VIOLATIONDATA_RACE, t_funErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-08-29 02:52:27,430 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:52:27,431 INFO L85 PathProgramCache]: Analyzing trace with hash 1156925666, now seen corresponding path program 1 times [2023-08-29 02:52:27,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:52:27,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116540596] [2023-08-29 02:52:27,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:52:27,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:52:27,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:52:27,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:52:27,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:52:27,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116540596] [2023-08-29 02:52:27,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1116540596] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:52:27,507 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:52:27,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 02:52:27,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807702790] [2023-08-29 02:52:27,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:52:27,508 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 02:52:27,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:52:27,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 02:52:27,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 02:52:27,527 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 217 [2023-08-29 02:52:27,528 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 41 transitions, 125 flow. Second operand has 3 states, 3 states have (on average 106.0) internal successors, (318), 3 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:52:27,528 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:52:27,529 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 217 [2023-08-29 02:52:27,529 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:52:27,621 INFO L130 PetriNetUnfolder]: 227/544 cut-off events. [2023-08-29 02:52:27,622 INFO L131 PetriNetUnfolder]: For 158/158 co-relation queries the response was YES. [2023-08-29 02:52:27,623 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1217 conditions, 544 events. 227/544 cut-off events. For 158/158 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 2496 event pairs, 164 based on Foata normal form. 0/464 useless extension candidates. Maximal degree in co-relation 1201. Up to 450 conditions per place. [2023-08-29 02:52:27,625 INFO L137 encePairwiseOnDemand]: 213/217 looper letters, 43 selfloop transitions, 3 changer transitions 0/55 dead transitions. [2023-08-29 02:52:27,625 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 55 transitions, 252 flow [2023-08-29 02:52:27,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 02:52:27,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 02:52:27,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 353 transitions. [2023-08-29 02:52:27,627 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5422427035330261 [2023-08-29 02:52:27,627 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 353 transitions. [2023-08-29 02:52:27,627 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 353 transitions. [2023-08-29 02:52:27,627 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:52:27,627 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 353 transitions. [2023-08-29 02:52:27,628 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 117.66666666666667) internal successors, (353), 3 states have internal predecessors, (353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:52:27,630 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 217.0) internal successors, (868), 4 states have internal predecessors, (868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:52:27,630 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 217.0) internal successors, (868), 4 states have internal predecessors, (868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:52:27,631 INFO L175 Difference]: Start difference. First operand has 44 places, 41 transitions, 125 flow. Second operand 3 states and 353 transitions. [2023-08-29 02:52:27,631 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 55 transitions, 252 flow [2023-08-29 02:52:27,632 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 55 transitions, 238 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 02:52:27,633 INFO L231 Difference]: Finished difference. Result has 45 places, 43 transitions, 134 flow [2023-08-29 02:52:27,634 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=217, PETRI_DIFFERENCE_MINUEND_FLOW=113, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=134, PETRI_PLACES=45, PETRI_TRANSITIONS=43} [2023-08-29 02:52:27,634 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, 2 predicate places. [2023-08-29 02:52:27,635 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 43 transitions, 134 flow [2023-08-29 02:52:27,635 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 106.0) internal successors, (318), 3 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:52:27,635 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:52:27,635 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:52:27,636 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-29 02:52:27,636 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr2ASSERT_VIOLATIONDATA_RACE, t_funErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-08-29 02:52:27,636 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:52:27,636 INFO L85 PathProgramCache]: Analyzing trace with hash 612742327, now seen corresponding path program 1 times [2023-08-29 02:52:27,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:52:27,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031172905] [2023-08-29 02:52:27,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:52:27,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:52:27,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:52:27,696 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:52:27,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:52:27,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031172905] [2023-08-29 02:52:27,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2031172905] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-29 02:52:27,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1254215230] [2023-08-29 02:52:27,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:52:27,698 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 02:52:27,698 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 02:52:27,701 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-29 02:52:27,717 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-08-29 02:52:27,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:52:27,791 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 3 conjunts are in the unsatisfiable core [2023-08-29 02:52:27,795 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 02:52:27,831 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:52:27,832 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-29 02:52:27,890 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:52:27,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1254215230] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-29 02:52:27,891 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-29 02:52:27,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2023-08-29 02:52:27,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381616094] [2023-08-29 02:52:27,891 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-29 02:52:27,892 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-29 02:52:27,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:52:27,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-29 02:52:27,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-08-29 02:52:27,912 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 217 [2023-08-29 02:52:27,913 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 43 transitions, 134 flow. Second operand has 7 states, 7 states have (on average 110.14285714285714) internal successors, (771), 7 states have internal predecessors, (771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:52:27,914 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:52:27,914 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 217 [2023-08-29 02:52:27,914 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:52:27,953 INFO L130 PetriNetUnfolder]: 24/84 cut-off events. [2023-08-29 02:52:27,954 INFO L131 PetriNetUnfolder]: For 12/13 co-relation queries the response was YES. [2023-08-29 02:52:27,954 INFO L83 FinitePrefix]: Finished finitePrefix Result has 201 conditions, 84 events. 24/84 cut-off events. For 12/13 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 196 event pairs, 0 based on Foata normal form. 14/97 useless extension candidates. Maximal degree in co-relation 160. Up to 50 conditions per place. [2023-08-29 02:52:27,969 INFO L137 encePairwiseOnDemand]: 214/217 looper letters, 21 selfloop transitions, 2 changer transitions 6/36 dead transitions. [2023-08-29 02:52:27,969 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 36 transitions, 160 flow [2023-08-29 02:52:27,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-29 02:52:27,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-29 02:52:27,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 458 transitions. [2023-08-29 02:52:27,971 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5276497695852534 [2023-08-29 02:52:27,971 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 458 transitions. [2023-08-29 02:52:27,971 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 458 transitions. [2023-08-29 02:52:27,972 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:52:27,972 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 458 transitions. [2023-08-29 02:52:27,973 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 114.5) internal successors, (458), 4 states have internal predecessors, (458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:52:27,975 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 217.0) internal successors, (1085), 5 states have internal predecessors, (1085), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:52:27,975 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 217.0) internal successors, (1085), 5 states have internal predecessors, (1085), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:52:27,975 INFO L175 Difference]: Start difference. First operand has 45 places, 43 transitions, 134 flow. Second operand 4 states and 458 transitions. [2023-08-29 02:52:27,975 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 36 transitions, 160 flow [2023-08-29 02:52:27,976 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 36 transitions, 135 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-08-29 02:52:27,977 INFO L231 Difference]: Finished difference. Result has 29 places, 20 transitions, 49 flow [2023-08-29 02:52:27,977 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=217, PETRI_DIFFERENCE_MINUEND_FLOW=51, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=49, PETRI_PLACES=29, PETRI_TRANSITIONS=20} [2023-08-29 02:52:27,978 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, -14 predicate places. [2023-08-29 02:52:27,978 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 20 transitions, 49 flow [2023-08-29 02:52:27,979 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 110.14285714285714) internal successors, (771), 7 states have internal predecessors, (771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:52:27,979 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:52:27,979 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:52:28,018 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-08-29 02:52:28,213 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 02:52:28,213 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr2ASSERT_VIOLATIONDATA_RACE, t_funErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-08-29 02:52:28,214 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:52:28,214 INFO L85 PathProgramCache]: Analyzing trace with hash 1385736232, now seen corresponding path program 1 times [2023-08-29 02:52:28,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:52:28,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042693562] [2023-08-29 02:52:28,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:52:28,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:52:28,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:52:28,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:52:28,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:52:28,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042693562] [2023-08-29 02:52:28,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1042693562] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:52:28,246 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:52:28,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 02:52:28,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558847808] [2023-08-29 02:52:28,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:52:28,247 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 02:52:28,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:52:28,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 02:52:28,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 02:52:28,269 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 217 [2023-08-29 02:52:28,270 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 20 transitions, 49 flow. Second operand has 3 states, 3 states have (on average 107.66666666666667) internal successors, (323), 3 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:52:28,270 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:52:28,270 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 217 [2023-08-29 02:52:28,270 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:52:28,292 INFO L130 PetriNetUnfolder]: 20/68 cut-off events. [2023-08-29 02:52:28,292 INFO L131 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2023-08-29 02:52:28,293 INFO L83 FinitePrefix]: Finished finitePrefix Result has 142 conditions, 68 events. 20/68 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 109 event pairs, 18 based on Foata normal form. 3/71 useless extension candidates. Maximal degree in co-relation 127. Up to 51 conditions per place. [2023-08-29 02:52:28,293 INFO L137 encePairwiseOnDemand]: 215/217 looper letters, 0 selfloop transitions, 0 changer transitions 21/21 dead transitions. [2023-08-29 02:52:28,293 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 21 transitions, 85 flow [2023-08-29 02:52:28,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 02:52:28,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 02:52:28,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 326 transitions. [2023-08-29 02:52:28,295 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.500768049155146 [2023-08-29 02:52:28,295 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 326 transitions. [2023-08-29 02:52:28,295 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 326 transitions. [2023-08-29 02:52:28,295 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:52:28,295 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 326 transitions. [2023-08-29 02:52:28,296 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 108.66666666666667) internal successors, (326), 3 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:52:28,298 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 217.0) internal successors, (868), 4 states have internal predecessors, (868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:52:28,298 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 217.0) internal successors, (868), 4 states have internal predecessors, (868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:52:28,298 INFO L175 Difference]: Start difference. First operand has 29 places, 20 transitions, 49 flow. Second operand 3 states and 326 transitions. [2023-08-29 02:52:28,299 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 21 transitions, 85 flow [2023-08-29 02:52:28,299 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 21 transitions, 81 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 02:52:28,299 INFO L231 Difference]: Finished difference. Result has 25 places, 0 transitions, 0 flow [2023-08-29 02:52:28,299 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=217, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=25, PETRI_TRANSITIONS=0} [2023-08-29 02:52:28,300 INFO L281 CegarLoopForPetriNet]: 43 programPoint places, -18 predicate places. [2023-08-29 02:52:28,300 INFO L495 AbstractCegarLoop]: Abstraction has has 25 places, 0 transitions, 0 flow [2023-08-29 02:52:28,301 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 107.66666666666667) internal successors, (323), 3 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:52:28,303 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (9 of 10 remaining) [2023-08-29 02:52:28,303 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (8 of 10 remaining) [2023-08-29 02:52:28,304 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONDATA_RACE (7 of 10 remaining) [2023-08-29 02:52:28,304 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (6 of 10 remaining) [2023-08-29 02:52:28,304 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (5 of 10 remaining) [2023-08-29 02:52:28,304 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (4 of 10 remaining) [2023-08-29 02:52:28,305 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONDATA_RACE (3 of 10 remaining) [2023-08-29 02:52:28,305 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (2 of 10 remaining) [2023-08-29 02:52:28,305 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONDATA_RACE (1 of 10 remaining) [2023-08-29 02:52:28,305 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 10 remaining) [2023-08-29 02:52:28,305 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-29 02:52:28,306 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-08-29 02:52:28,308 INFO L307 ceAbstractionStarter]: Result for error location AllErrorsAtOnce was SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE (1/2) [2023-08-29 02:52:28,317 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 116 places, 127 transitions, 262 flow [2023-08-29 02:52:28,335 INFO L130 PetriNetUnfolder]: 21/172 cut-off events. [2023-08-29 02:52:28,335 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-29 02:52:28,335 INFO L83 FinitePrefix]: Finished finitePrefix Result has 178 conditions, 172 events. 21/172 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 520 event pairs, 0 based on Foata normal form. 0/140 useless extension candidates. Maximal degree in co-relation 94. Up to 6 conditions per place. [2023-08-29 02:52:28,336 INFO L82 GeneralOperation]: Start removeDead. Operand has 116 places, 127 transitions, 262 flow [2023-08-29 02:52:28,337 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 112 places, 122 transitions, 249 flow [2023-08-29 02:52:28,337 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 02:52:28,337 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 112 places, 122 transitions, 249 flow [2023-08-29 02:52:28,337 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 112 places, 122 transitions, 249 flow [2023-08-29 02:52:28,342 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 112 places, 122 transitions, 249 flow [2023-08-29 02:52:28,354 INFO L130 PetriNetUnfolder]: 20/167 cut-off events. [2023-08-29 02:52:28,354 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 02:52:28,354 INFO L83 FinitePrefix]: Finished finitePrefix Result has 172 conditions, 167 events. 20/167 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 515 event pairs, 0 based on Foata normal form. 0/135 useless extension candidates. Maximal degree in co-relation 94. Up to 6 conditions per place. [2023-08-29 02:52:28,356 INFO L119 LiptonReduction]: Number of co-enabled transitions 4488 [2023-08-29 02:52:30,394 INFO L134 LiptonReduction]: Checked pairs total: 11160 [2023-08-29 02:52:30,394 INFO L136 LiptonReduction]: Total number of compositions: 86 [2023-08-29 02:52:30,396 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-29 02:52:30,396 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;@400b496d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 02:52:30,397 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-29 02:52:30,399 INFO L130 PetriNetUnfolder]: 2/24 cut-off events. [2023-08-29 02:52:30,399 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 02:52:30,399 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:52:30,399 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2023-08-29 02:52:30,400 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-29 02:52:30,400 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:52:30,400 INFO L85 PathProgramCache]: Analyzing trace with hash -477883910, now seen corresponding path program 1 times [2023-08-29 02:52:30,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:52:30,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625880360] [2023-08-29 02:52:30,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:52:30,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:52:30,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-29 02:52:30,415 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-29 02:52:30,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-29 02:52:30,436 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-29 02:52:30,437 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-29 02:52:30,437 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-29 02:52:30,437 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-29 02:52:30,437 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-29 02:52:30,438 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (2/2) [2023-08-29 02:52:30,438 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-29 02:52:30,439 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-08-29 02:52:30,463 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-29 02:52:30,465 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 157 places, 173 transitions, 364 flow [2023-08-29 02:52:30,488 INFO L130 PetriNetUnfolder]: 37/293 cut-off events. [2023-08-29 02:52:30,489 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2023-08-29 02:52:30,491 INFO L83 FinitePrefix]: Finished finitePrefix Result has 307 conditions, 293 events. 37/293 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1027 event pairs, 0 based on Foata normal form. 0/237 useless extension candidates. Maximal degree in co-relation 174. Up to 9 conditions per place. [2023-08-29 02:52:30,491 INFO L82 GeneralOperation]: Start removeDead. Operand has 157 places, 173 transitions, 364 flow [2023-08-29 02:52:30,493 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 157 places, 173 transitions, 364 flow [2023-08-29 02:52:30,493 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 02:52:30,494 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 157 places, 173 transitions, 364 flow [2023-08-29 02:52:30,494 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 157 places, 173 transitions, 364 flow [2023-08-29 02:52:30,494 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 157 places, 173 transitions, 364 flow [2023-08-29 02:52:30,517 INFO L130 PetriNetUnfolder]: 37/293 cut-off events. [2023-08-29 02:52:30,517 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2023-08-29 02:52:30,519 INFO L83 FinitePrefix]: Finished finitePrefix Result has 307 conditions, 293 events. 37/293 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1027 event pairs, 0 based on Foata normal form. 0/237 useless extension candidates. Maximal degree in co-relation 174. Up to 9 conditions per place. [2023-08-29 02:52:30,527 INFO L119 LiptonReduction]: Number of co-enabled transitions 13816 [2023-08-29 02:52:32,922 INFO L134 LiptonReduction]: Checked pairs total: 47637 [2023-08-29 02:52:32,922 INFO L136 LiptonReduction]: Total number of compositions: 107 [2023-08-29 02:52:32,924 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 02:52:32,925 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;@400b496d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 02:52:32,925 INFO L358 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2023-08-29 02:52:32,926 INFO L130 PetriNetUnfolder]: 1/11 cut-off events. [2023-08-29 02:52:32,927 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 02:52:32,927 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:52:32,927 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-29 02:52:32,927 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr3ASSERT_VIOLATIONDATA_RACE, t_funErr1ASSERT_VIOLATIONDATA_RACE, t_funErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2023-08-29 02:52:32,928 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:52:32,928 INFO L85 PathProgramCache]: Analyzing trace with hash 848873639, now seen corresponding path program 1 times [2023-08-29 02:52:32,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:52:32,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325108929] [2023-08-29 02:52:32,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:52:32,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:52:32,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:52:32,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:52:32,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:52:32,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325108929] [2023-08-29 02:52:32,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1325108929] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:52:32,967 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:52:32,967 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 02:52:32,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625509161] [2023-08-29 02:52:32,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:52:32,968 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 02:52:32,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:52:32,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 02:52:32,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 02:52:32,983 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 146 out of 280 [2023-08-29 02:52:32,984 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 86 transitions, 190 flow. Second operand has 3 states, 3 states have (on average 147.66666666666666) internal successors, (443), 3 states have internal predecessors, (443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:52:32,984 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:52:32,984 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 146 of 280 [2023-08-29 02:52:32,984 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:52:33,509 INFO L130 PetriNetUnfolder]: 2834/5913 cut-off events. [2023-08-29 02:52:33,510 INFO L131 PetriNetUnfolder]: For 58/58 co-relation queries the response was YES. [2023-08-29 02:52:33,520 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10477 conditions, 5913 events. 2834/5913 cut-off events. For 58/58 co-relation queries the response was YES. Maximal size of possible extension queue 202. Compared 45562 event pairs, 1250 based on Foata normal form. 413/5478 useless extension candidates. Maximal degree in co-relation 904. Up to 4467 conditions per place. [2023-08-29 02:52:33,545 INFO L137 encePairwiseOnDemand]: 261/280 looper letters, 48 selfloop transitions, 2 changer transitions 0/82 dead transitions. [2023-08-29 02:52:33,546 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 82 transitions, 282 flow [2023-08-29 02:52:33,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 02:52:33,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 02:52:33,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 511 transitions. [2023-08-29 02:52:33,548 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6083333333333333 [2023-08-29 02:52:33,548 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 511 transitions. [2023-08-29 02:52:33,548 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 511 transitions. [2023-08-29 02:52:33,548 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:52:33,548 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 511 transitions. [2023-08-29 02:52:33,579 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 170.33333333333334) internal successors, (511), 3 states have internal predecessors, (511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:52:33,581 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 280.0) internal successors, (1120), 4 states have internal predecessors, (1120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:52:33,581 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 280.0) internal successors, (1120), 4 states have internal predecessors, (1120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:52:33,582 INFO L175 Difference]: Start difference. First operand has 73 places, 86 transitions, 190 flow. Second operand 3 states and 511 transitions. [2023-08-29 02:52:33,582 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 82 transitions, 282 flow [2023-08-29 02:52:33,585 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 82 transitions, 282 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 02:52:33,587 INFO L231 Difference]: Finished difference. Result has 75 places, 71 transitions, 170 flow [2023-08-29 02:52:33,587 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=280, PETRI_DIFFERENCE_MINUEND_FLOW=158, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=170, PETRI_PLACES=75, PETRI_TRANSITIONS=71} [2023-08-29 02:52:33,588 INFO L281 CegarLoopForPetriNet]: 73 programPoint places, 2 predicate places. [2023-08-29 02:52:33,588 INFO L495 AbstractCegarLoop]: Abstraction has has 75 places, 71 transitions, 170 flow [2023-08-29 02:52:33,588 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 147.66666666666666) internal successors, (443), 3 states have internal predecessors, (443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:52:33,589 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:52:33,589 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:52:33,589 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-29 02:52:33,589 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr3ASSERT_VIOLATIONDATA_RACE, t_funErr1ASSERT_VIOLATIONDATA_RACE, t_funErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2023-08-29 02:52:33,590 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:52:33,590 INFO L85 PathProgramCache]: Analyzing trace with hash -1672546126, now seen corresponding path program 1 times [2023-08-29 02:52:33,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:52:33,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368952482] [2023-08-29 02:52:33,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:52:33,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:52:33,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:52:33,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:52:33,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:52:33,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368952482] [2023-08-29 02:52:33,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1368952482] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:52:33,626 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:52:33,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 02:52:33,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837219800] [2023-08-29 02:52:33,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:52:33,627 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 02:52:33,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:52:33,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 02:52:33,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 02:52:33,655 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 280 [2023-08-29 02:52:33,655 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 71 transitions, 170 flow. Second operand has 3 states, 3 states have (on average 133.33333333333334) internal successors, (400), 3 states have internal predecessors, (400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:52:33,656 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:52:33,656 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 280 [2023-08-29 02:52:33,656 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:52:35,257 INFO L130 PetriNetUnfolder]: 12468/21526 cut-off events. [2023-08-29 02:52:35,257 INFO L131 PetriNetUnfolder]: For 928/928 co-relation queries the response was YES. [2023-08-29 02:52:35,302 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42219 conditions, 21526 events. 12468/21526 cut-off events. For 928/928 co-relation queries the response was YES. Maximal size of possible extension queue 500. Compared 160611 event pairs, 4675 based on Foata normal form. 0/19215 useless extension candidates. Maximal degree in co-relation 42108. Up to 10295 conditions per place. [2023-08-29 02:52:35,394 INFO L137 encePairwiseOnDemand]: 261/280 looper letters, 91 selfloop transitions, 14 changer transitions 0/120 dead transitions. [2023-08-29 02:52:35,395 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 120 transitions, 496 flow [2023-08-29 02:52:35,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 02:52:35,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 02:52:35,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 501 transitions. [2023-08-29 02:52:35,397 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5964285714285714 [2023-08-29 02:52:35,398 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 501 transitions. [2023-08-29 02:52:35,398 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 501 transitions. [2023-08-29 02:52:35,398 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:52:35,398 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 501 transitions. [2023-08-29 02:52:35,399 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 167.0) internal successors, (501), 3 states have internal predecessors, (501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:52:35,401 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 280.0) internal successors, (1120), 4 states have internal predecessors, (1120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:52:35,401 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 280.0) internal successors, (1120), 4 states have internal predecessors, (1120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:52:35,401 INFO L175 Difference]: Start difference. First operand has 75 places, 71 transitions, 170 flow. Second operand 3 states and 501 transitions. [2023-08-29 02:52:35,402 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 120 transitions, 496 flow [2023-08-29 02:52:35,404 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 120 transitions, 493 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 02:52:35,407 INFO L231 Difference]: Finished difference. Result has 78 places, 85 transitions, 290 flow [2023-08-29 02:52:35,408 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=280, PETRI_DIFFERENCE_MINUEND_FLOW=168, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=290, PETRI_PLACES=78, PETRI_TRANSITIONS=85} [2023-08-29 02:52:35,409 INFO L281 CegarLoopForPetriNet]: 73 programPoint places, 5 predicate places. [2023-08-29 02:52:35,409 INFO L495 AbstractCegarLoop]: Abstraction has has 78 places, 85 transitions, 290 flow [2023-08-29 02:52:35,409 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 133.33333333333334) internal successors, (400), 3 states have internal predecessors, (400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:52:35,409 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:52:35,410 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:52:35,410 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-29 02:52:35,410 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr3ASSERT_VIOLATIONDATA_RACE, t_funErr1ASSERT_VIOLATIONDATA_RACE, t_funErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2023-08-29 02:52:35,410 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:52:35,410 INFO L85 PathProgramCache]: Analyzing trace with hash 1999554009, now seen corresponding path program 1 times [2023-08-29 02:52:35,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:52:35,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567909202] [2023-08-29 02:52:35,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:52:35,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:52:35,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:52:35,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:52:35,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:52:35,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567909202] [2023-08-29 02:52:35,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [567909202] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:52:35,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:52:35,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 02:52:35,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441949816] [2023-08-29 02:52:35,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:52:35,441 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 02:52:35,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:52:35,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 02:52:35,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 02:52:35,474 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 137 out of 280 [2023-08-29 02:52:35,475 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 85 transitions, 290 flow. Second operand has 3 states, 3 states have (on average 139.66666666666666) internal successors, (419), 3 states have internal predecessors, (419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:52:35,475 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:52:35,475 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 137 of 280 [2023-08-29 02:52:35,476 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:52:37,037 INFO L130 PetriNetUnfolder]: 11183/20005 cut-off events. [2023-08-29 02:52:37,037 INFO L131 PetriNetUnfolder]: For 6720/6800 co-relation queries the response was YES. [2023-08-29 02:52:37,076 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45723 conditions, 20005 events. 11183/20005 cut-off events. For 6720/6800 co-relation queries the response was YES. Maximal size of possible extension queue 548. Compared 155029 event pairs, 7287 based on Foata normal form. 0/17618 useless extension candidates. Maximal degree in co-relation 40247. Up to 15143 conditions per place. [2023-08-29 02:52:37,159 INFO L137 encePairwiseOnDemand]: 271/280 looper letters, 80 selfloop transitions, 14 changer transitions 0/123 dead transitions. [2023-08-29 02:52:37,159 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 123 transitions, 598 flow [2023-08-29 02:52:37,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 02:52:37,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 02:52:37,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 490 transitions. [2023-08-29 02:52:37,162 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5833333333333334 [2023-08-29 02:52:37,162 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 490 transitions. [2023-08-29 02:52:37,162 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 490 transitions. [2023-08-29 02:52:37,162 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:52:37,162 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 490 transitions. [2023-08-29 02:52:37,164 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 163.33333333333334) internal successors, (490), 3 states have internal predecessors, (490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:52:37,165 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 280.0) internal successors, (1120), 4 states have internal predecessors, (1120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:52:37,165 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 280.0) internal successors, (1120), 4 states have internal predecessors, (1120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:52:37,166 INFO L175 Difference]: Start difference. First operand has 78 places, 85 transitions, 290 flow. Second operand 3 states and 490 transitions. [2023-08-29 02:52:37,166 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 123 transitions, 598 flow [2023-08-29 02:52:37,183 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 123 transitions, 560 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 02:52:37,185 INFO L231 Difference]: Finished difference. Result has 80 places, 97 transitions, 388 flow [2023-08-29 02:52:37,186 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=280, PETRI_DIFFERENCE_MINUEND_FLOW=262, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=388, PETRI_PLACES=80, PETRI_TRANSITIONS=97} [2023-08-29 02:52:37,186 INFO L281 CegarLoopForPetriNet]: 73 programPoint places, 7 predicate places. [2023-08-29 02:52:37,186 INFO L495 AbstractCegarLoop]: Abstraction has has 80 places, 97 transitions, 388 flow [2023-08-29 02:52:37,187 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 139.66666666666666) internal successors, (419), 3 states have internal predecessors, (419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:52:37,187 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:52:37,187 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:52:37,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-29 02:52:37,188 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr3ASSERT_VIOLATIONDATA_RACE, t_funErr1ASSERT_VIOLATIONDATA_RACE, t_funErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2023-08-29 02:52:37,188 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:52:37,188 INFO L85 PathProgramCache]: Analyzing trace with hash -712358485, now seen corresponding path program 1 times [2023-08-29 02:52:37,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:52:37,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99011712] [2023-08-29 02:52:37,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:52:37,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:52:37,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:52:37,214 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-29 02:52:37,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:52:37,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99011712] [2023-08-29 02:52:37,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [99011712] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:52:37,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:52:37,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 02:52:37,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931841504] [2023-08-29 02:52:37,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:52:37,216 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 02:52:37,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:52:37,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 02:52:37,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 02:52:37,250 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 137 out of 280 [2023-08-29 02:52:37,251 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 97 transitions, 388 flow. Second operand has 3 states, 3 states have (on average 140.66666666666666) internal successors, (422), 3 states have internal predecessors, (422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:52:37,251 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:52:37,251 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 137 of 280 [2023-08-29 02:52:37,251 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:52:38,735 INFO L130 PetriNetUnfolder]: 11826/21016 cut-off events. [2023-08-29 02:52:38,735 INFO L131 PetriNetUnfolder]: For 10308/10629 co-relation queries the response was YES. [2023-08-29 02:52:38,778 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51127 conditions, 21016 events. 11826/21016 cut-off events. For 10308/10629 co-relation queries the response was YES. Maximal size of possible extension queue 590. Compared 162972 event pairs, 7826 based on Foata normal form. 15/18228 useless extension candidates. Maximal degree in co-relation 45399. Up to 17440 conditions per place. [2023-08-29 02:52:38,856 INFO L137 encePairwiseOnDemand]: 272/280 looper letters, 87 selfloop transitions, 16 changer transitions 0/132 dead transitions. [2023-08-29 02:52:38,856 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 132 transitions, 719 flow [2023-08-29 02:52:38,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 02:52:38,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 02:52:38,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 486 transitions. [2023-08-29 02:52:38,858 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5785714285714286 [2023-08-29 02:52:38,859 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 486 transitions. [2023-08-29 02:52:38,859 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 486 transitions. [2023-08-29 02:52:38,859 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:52:38,859 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 486 transitions. [2023-08-29 02:52:38,860 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 162.0) internal successors, (486), 3 states have internal predecessors, (486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:52:38,862 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 280.0) internal successors, (1120), 4 states have internal predecessors, (1120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:52:38,862 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 280.0) internal successors, (1120), 4 states have internal predecessors, (1120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:52:38,862 INFO L175 Difference]: Start difference. First operand has 80 places, 97 transitions, 388 flow. Second operand 3 states and 486 transitions. [2023-08-29 02:52:38,862 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 132 transitions, 719 flow [2023-08-29 02:52:38,894 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 132 transitions, 681 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 02:52:38,896 INFO L231 Difference]: Finished difference. Result has 81 places, 109 transitions, 490 flow [2023-08-29 02:52:38,897 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=280, PETRI_DIFFERENCE_MINUEND_FLOW=360, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=490, PETRI_PLACES=81, PETRI_TRANSITIONS=109} [2023-08-29 02:52:38,897 INFO L281 CegarLoopForPetriNet]: 73 programPoint places, 8 predicate places. [2023-08-29 02:52:38,897 INFO L495 AbstractCegarLoop]: Abstraction has has 81 places, 109 transitions, 490 flow [2023-08-29 02:52:38,898 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 140.66666666666666) internal successors, (422), 3 states have internal predecessors, (422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:52:38,898 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:52:38,898 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:52:38,898 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-29 02:52:38,899 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr3ASSERT_VIOLATIONDATA_RACE, t_funErr1ASSERT_VIOLATIONDATA_RACE, t_funErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2023-08-29 02:52:38,899 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:52:38,899 INFO L85 PathProgramCache]: Analyzing trace with hash 1038083744, now seen corresponding path program 1 times [2023-08-29 02:52:38,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:52:38,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656738208] [2023-08-29 02:52:38,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:52:38,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:52:38,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:52:38,937 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:52:38,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:52:38,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656738208] [2023-08-29 02:52:38,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1656738208] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-29 02:52:38,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [345627445] [2023-08-29 02:52:38,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:52:38,938 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 02:52:38,938 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 02:52:38,940 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-29 02:52:38,971 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-08-29 02:52:39,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:52:39,025 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 3 conjunts are in the unsatisfiable core [2023-08-29 02:52:39,026 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 02:52:39,046 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:52:39,046 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-29 02:52:39,076 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:52:39,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [345627445] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-29 02:52:39,077 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-29 02:52:39,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2023-08-29 02:52:39,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016836037] [2023-08-29 02:52:39,077 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-29 02:52:39,078 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-29 02:52:39,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:52:39,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-29 02:52:39,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-08-29 02:52:39,094 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 280 [2023-08-29 02:52:39,095 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 109 transitions, 490 flow. Second operand has 7 states, 7 states have (on average 148.0) internal successors, (1036), 7 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:52:39,096 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:52:39,096 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 280 [2023-08-29 02:52:39,096 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:52:39,318 INFO L130 PetriNetUnfolder]: 1190/2567 cut-off events. [2023-08-29 02:52:39,318 INFO L131 PetriNetUnfolder]: For 2170/2305 co-relation queries the response was YES. [2023-08-29 02:52:39,324 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6511 conditions, 2567 events. 1190/2567 cut-off events. For 2170/2305 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 17545 event pairs, 287 based on Foata normal form. 269/2673 useless extension candidates. Maximal degree in co-relation 3080. Up to 1342 conditions per place. [2023-08-29 02:52:39,332 INFO L137 encePairwiseOnDemand]: 277/280 looper letters, 73 selfloop transitions, 3 changer transitions 0/122 dead transitions. [2023-08-29 02:52:39,332 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 122 transitions, 664 flow [2023-08-29 02:52:39,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-29 02:52:39,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-29 02:52:39,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 785 transitions. [2023-08-29 02:52:39,335 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5607142857142857 [2023-08-29 02:52:39,335 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 785 transitions. [2023-08-29 02:52:39,336 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 785 transitions. [2023-08-29 02:52:39,336 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:52:39,336 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 785 transitions. [2023-08-29 02:52:39,338 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 157.0) internal successors, (785), 5 states have internal predecessors, (785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:52:39,340 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 280.0) internal successors, (1680), 6 states have internal predecessors, (1680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:52:39,342 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 280.0) internal successors, (1680), 6 states have internal predecessors, (1680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:52:39,342 INFO L175 Difference]: Start difference. First operand has 81 places, 109 transitions, 490 flow. Second operand 5 states and 785 transitions. [2023-08-29 02:52:39,342 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 122 transitions, 664 flow [2023-08-29 02:52:39,345 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 122 transitions, 646 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-08-29 02:52:39,347 INFO L231 Difference]: Finished difference. Result has 70 places, 81 transitions, 352 flow [2023-08-29 02:52:39,348 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=280, PETRI_DIFFERENCE_MINUEND_FLOW=346, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=352, PETRI_PLACES=70, PETRI_TRANSITIONS=81} [2023-08-29 02:52:39,348 INFO L281 CegarLoopForPetriNet]: 73 programPoint places, -3 predicate places. [2023-08-29 02:52:39,349 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 81 transitions, 352 flow [2023-08-29 02:52:39,349 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 148.0) internal successors, (1036), 7 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:52:39,349 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:52:39,350 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:52:39,355 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-08-29 02:52:39,554 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-08-29 02:52:39,554 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr3ASSERT_VIOLATIONDATA_RACE, t_funErr1ASSERT_VIOLATIONDATA_RACE, t_funErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2023-08-29 02:52:39,555 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:52:39,555 INFO L85 PathProgramCache]: Analyzing trace with hash 880048247, now seen corresponding path program 1 times [2023-08-29 02:52:39,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:52:39,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805250895] [2023-08-29 02:52:39,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:52:39,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:52:39,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:52:39,683 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:52:39,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:52:39,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805250895] [2023-08-29 02:52:39,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1805250895] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:52:39,684 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:52:39,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-29 02:52:39,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317864920] [2023-08-29 02:52:39,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:52:39,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-29 02:52:39,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:52:39,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-29 02:52:39,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-29 02:52:39,744 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 280 [2023-08-29 02:52:39,745 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 81 transitions, 352 flow. Second operand has 4 states, 4 states have (on average 145.75) internal successors, (583), 4 states have internal predecessors, (583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:52:39,745 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:52:39,746 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 280 [2023-08-29 02:52:39,746 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:52:39,810 INFO L130 PetriNetUnfolder]: 111/421 cut-off events. [2023-08-29 02:52:39,810 INFO L131 PetriNetUnfolder]: For 319/319 co-relation queries the response was YES. [2023-08-29 02:52:39,811 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1026 conditions, 421 events. 111/421 cut-off events. For 319/319 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1803 event pairs, 12 based on Foata normal form. 54/475 useless extension candidates. Maximal degree in co-relation 561. Up to 234 conditions per place. [2023-08-29 02:52:39,812 INFO L137 encePairwiseOnDemand]: 275/280 looper letters, 25 selfloop transitions, 5 changer transitions 0/52 dead transitions. [2023-08-29 02:52:39,812 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 52 transitions, 249 flow [2023-08-29 02:52:39,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-29 02:52:39,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-29 02:52:39,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 602 transitions. [2023-08-29 02:52:39,815 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5375 [2023-08-29 02:52:39,815 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 602 transitions. [2023-08-29 02:52:39,815 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 602 transitions. [2023-08-29 02:52:39,816 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:52:39,816 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 602 transitions. [2023-08-29 02:52:39,817 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 150.5) internal successors, (602), 4 states have internal predecessors, (602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:52:39,819 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 280.0) internal successors, (1400), 5 states have internal predecessors, (1400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:52:39,819 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 280.0) internal successors, (1400), 5 states have internal predecessors, (1400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:52:39,819 INFO L175 Difference]: Start difference. First operand has 70 places, 81 transitions, 352 flow. Second operand 4 states and 602 transitions. [2023-08-29 02:52:39,820 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 52 transitions, 249 flow [2023-08-29 02:52:39,821 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 52 transitions, 188 flow, removed 15 selfloop flow, removed 9 redundant places. [2023-08-29 02:52:39,822 INFO L231 Difference]: Finished difference. Result has 58 places, 48 transitions, 121 flow [2023-08-29 02:52:39,822 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=280, PETRI_DIFFERENCE_MINUEND_FLOW=111, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=121, PETRI_PLACES=58, PETRI_TRANSITIONS=48} [2023-08-29 02:52:39,823 INFO L281 CegarLoopForPetriNet]: 73 programPoint places, -15 predicate places. [2023-08-29 02:52:39,823 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 48 transitions, 121 flow [2023-08-29 02:52:39,823 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 145.75) internal successors, (583), 4 states have internal predecessors, (583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:52:39,824 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:52:39,824 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:52:39,824 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-29 02:52:39,824 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr3ASSERT_VIOLATIONDATA_RACE, t_funErr1ASSERT_VIOLATIONDATA_RACE, t_funErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2023-08-29 02:52:39,824 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:52:39,825 INFO L85 PathProgramCache]: Analyzing trace with hash -2005540009, now seen corresponding path program 1 times [2023-08-29 02:52:39,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:52:39,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701175712] [2023-08-29 02:52:39,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:52:39,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:52:39,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:52:39,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:52:39,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:52:39,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701175712] [2023-08-29 02:52:39,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [701175712] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:52:39,849 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:52:39,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 02:52:39,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232898228] [2023-08-29 02:52:39,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:52:39,850 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 02:52:39,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:52:39,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 02:52:39,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 02:52:39,883 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 137 out of 280 [2023-08-29 02:52:39,884 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 48 transitions, 121 flow. Second operand has 3 states, 3 states have (on average 141.33333333333334) internal successors, (424), 3 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:52:39,884 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:52:39,884 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 137 of 280 [2023-08-29 02:52:39,885 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:52:39,944 INFO L130 PetriNetUnfolder]: 141/441 cut-off events. [2023-08-29 02:52:39,944 INFO L131 PetriNetUnfolder]: For 109/109 co-relation queries the response was YES. [2023-08-29 02:52:39,945 INFO L83 FinitePrefix]: Finished finitePrefix Result has 925 conditions, 441 events. 141/441 cut-off events. For 109/109 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1791 event pairs, 127 based on Foata normal form. 0/441 useless extension candidates. Maximal degree in co-relation 349. Up to 307 conditions per place. [2023-08-29 02:52:39,946 INFO L137 encePairwiseOnDemand]: 277/280 looper letters, 31 selfloop transitions, 2 changer transitions 3/51 dead transitions. [2023-08-29 02:52:39,946 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 51 transitions, 208 flow [2023-08-29 02:52:39,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 02:52:39,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 02:52:39,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 446 transitions. [2023-08-29 02:52:39,948 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.530952380952381 [2023-08-29 02:52:39,948 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 446 transitions. [2023-08-29 02:52:39,948 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 446 transitions. [2023-08-29 02:52:39,949 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:52:39,949 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 446 transitions. [2023-08-29 02:52:39,950 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 148.66666666666666) internal successors, (446), 3 states have internal predecessors, (446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:52:39,952 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 280.0) internal successors, (1120), 4 states have internal predecessors, (1120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:52:39,952 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 280.0) internal successors, (1120), 4 states have internal predecessors, (1120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:52:39,952 INFO L175 Difference]: Start difference. First operand has 58 places, 48 transitions, 121 flow. Second operand 3 states and 446 transitions. [2023-08-29 02:52:39,952 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 51 transitions, 208 flow [2023-08-29 02:52:39,953 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 51 transitions, 203 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 02:52:39,954 INFO L231 Difference]: Finished difference. Result has 57 places, 44 transitions, 111 flow [2023-08-29 02:52:39,954 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=280, PETRI_DIFFERENCE_MINUEND_FLOW=114, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=111, PETRI_PLACES=57, PETRI_TRANSITIONS=44} [2023-08-29 02:52:39,955 INFO L281 CegarLoopForPetriNet]: 73 programPoint places, -16 predicate places. [2023-08-29 02:52:39,955 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 44 transitions, 111 flow [2023-08-29 02:52:39,955 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 141.33333333333334) internal successors, (424), 3 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:52:39,955 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:52:39,956 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:52:39,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-29 02:52:39,956 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr3ASSERT_VIOLATIONDATA_RACE, t_funErr1ASSERT_VIOLATIONDATA_RACE, t_funErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2023-08-29 02:52:39,956 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:52:39,956 INFO L85 PathProgramCache]: Analyzing trace with hash -176529917, now seen corresponding path program 1 times [2023-08-29 02:52:39,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:52:39,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381488217] [2023-08-29 02:52:39,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:52:39,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:52:39,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:52:39,982 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-29 02:52:39,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:52:39,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381488217] [2023-08-29 02:52:39,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [381488217] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:52:39,983 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:52:39,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 02:52:39,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632336133] [2023-08-29 02:52:39,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:52:39,984 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 02:52:39,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:52:39,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 02:52:39,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 02:52:40,011 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 137 out of 280 [2023-08-29 02:52:40,012 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 44 transitions, 111 flow. Second operand has 3 states, 3 states have (on average 142.66666666666666) internal successors, (428), 3 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:52:40,012 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:52:40,013 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 137 of 280 [2023-08-29 02:52:40,013 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:52:40,061 INFO L130 PetriNetUnfolder]: 104/326 cut-off events. [2023-08-29 02:52:40,061 INFO L131 PetriNetUnfolder]: For 98/98 co-relation queries the response was YES. [2023-08-29 02:52:40,062 INFO L83 FinitePrefix]: Finished finitePrefix Result has 693 conditions, 326 events. 104/326 cut-off events. For 98/98 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1229 event pairs, 100 based on Foata normal form. 6/332 useless extension candidates. Maximal degree in co-relation 426. Up to 241 conditions per place. [2023-08-29 02:52:40,062 INFO L137 encePairwiseOnDemand]: 278/280 looper letters, 0 selfloop transitions, 0 changer transitions 45/45 dead transitions. [2023-08-29 02:52:40,062 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 45 transitions, 177 flow [2023-08-29 02:52:40,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 02:52:40,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 02:52:40,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 442 transitions. [2023-08-29 02:52:40,064 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5261904761904762 [2023-08-29 02:52:40,065 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 442 transitions. [2023-08-29 02:52:40,065 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 442 transitions. [2023-08-29 02:52:40,065 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:52:40,065 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 442 transitions. [2023-08-29 02:52:40,066 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 147.33333333333334) internal successors, (442), 3 states have internal predecessors, (442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:52:40,068 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 280.0) internal successors, (1120), 4 states have internal predecessors, (1120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:52:40,068 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 280.0) internal successors, (1120), 4 states have internal predecessors, (1120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:52:40,068 INFO L175 Difference]: Start difference. First operand has 57 places, 44 transitions, 111 flow. Second operand 3 states and 442 transitions. [2023-08-29 02:52:40,068 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 45 transitions, 177 flow [2023-08-29 02:52:40,069 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 45 transitions, 173 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 02:52:40,070 INFO L231 Difference]: Finished difference. Result has 53 places, 0 transitions, 0 flow [2023-08-29 02:52:40,070 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=280, PETRI_DIFFERENCE_MINUEND_FLOW=105, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=53, PETRI_TRANSITIONS=0} [2023-08-29 02:52:40,070 INFO L281 CegarLoopForPetriNet]: 73 programPoint places, -20 predicate places. [2023-08-29 02:52:40,071 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 0 transitions, 0 flow [2023-08-29 02:52:40,071 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 142.66666666666666) internal successors, (428), 3 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:52:40,071 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (13 of 14 remaining) [2023-08-29 02:52:40,071 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONDATA_RACE (12 of 14 remaining) [2023-08-29 02:52:40,072 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (11 of 14 remaining) [2023-08-29 02:52:40,072 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONDATA_RACE (10 of 14 remaining) [2023-08-29 02:52:40,072 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (9 of 14 remaining) [2023-08-29 02:52:40,072 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (8 of 14 remaining) [2023-08-29 02:52:40,072 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONDATA_RACE (7 of 14 remaining) [2023-08-29 02:52:40,073 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (6 of 14 remaining) [2023-08-29 02:52:40,073 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONDATA_RACE (5 of 14 remaining) [2023-08-29 02:52:40,073 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (4 of 14 remaining) [2023-08-29 02:52:40,073 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (3 of 14 remaining) [2023-08-29 02:52:40,073 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONDATA_RACE (2 of 14 remaining) [2023-08-29 02:52:40,074 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONDATA_RACE (1 of 14 remaining) [2023-08-29 02:52:40,074 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 14 remaining) [2023-08-29 02:52:40,074 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-29 02:52:40,074 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:52:40,075 INFO L307 ceAbstractionStarter]: Result for error location AllErrorsAtOnce was SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE (1/2) [2023-08-29 02:52:40,077 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 157 places, 173 transitions, 364 flow [2023-08-29 02:52:40,103 INFO L130 PetriNetUnfolder]: 37/293 cut-off events. [2023-08-29 02:52:40,104 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2023-08-29 02:52:40,105 INFO L83 FinitePrefix]: Finished finitePrefix Result has 307 conditions, 293 events. 37/293 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1027 event pairs, 0 based on Foata normal form. 0/237 useless extension candidates. Maximal degree in co-relation 174. Up to 9 conditions per place. [2023-08-29 02:52:40,106 INFO L82 GeneralOperation]: Start removeDead. Operand has 157 places, 173 transitions, 364 flow [2023-08-29 02:52:40,107 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 157 places, 173 transitions, 364 flow [2023-08-29 02:52:40,107 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 02:52:40,108 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 157 places, 173 transitions, 364 flow [2023-08-29 02:52:40,108 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 157 places, 173 transitions, 364 flow [2023-08-29 02:52:40,108 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 157 places, 173 transitions, 364 flow [2023-08-29 02:52:40,132 INFO L130 PetriNetUnfolder]: 37/293 cut-off events. [2023-08-29 02:52:40,133 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2023-08-29 02:52:40,134 INFO L83 FinitePrefix]: Finished finitePrefix Result has 307 conditions, 293 events. 37/293 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1027 event pairs, 0 based on Foata normal form. 0/237 useless extension candidates. Maximal degree in co-relation 174. Up to 9 conditions per place. [2023-08-29 02:52:40,250 INFO L119 LiptonReduction]: Number of co-enabled transitions 13816 [2023-08-29 02:52:42,496 INFO L134 LiptonReduction]: Checked pairs total: 47769 [2023-08-29 02:52:42,497 INFO L136 LiptonReduction]: Total number of compositions: 107 [2023-08-29 02:52:42,501 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-29 02:52:42,502 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;@400b496d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 02:52:42,502 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-29 02:52:42,506 INFO L130 PetriNetUnfolder]: 9/67 cut-off events. [2023-08-29 02:52:42,506 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-08-29 02:52:42,506 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:52:42,507 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2023-08-29 02:52:42,507 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-29 02:52:42,508 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:52:42,508 INFO L85 PathProgramCache]: Analyzing trace with hash 405270059, now seen corresponding path program 1 times [2023-08-29 02:52:42,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:52:42,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134348563] [2023-08-29 02:52:42,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:52:42,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:52:42,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-29 02:52:42,524 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-29 02:52:42,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-29 02:52:42,538 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-29 02:52:42,538 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-29 02:52:42,538 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-29 02:52:42,538 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-08-29 02:52:42,538 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-29 02:52:42,539 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (2/2) [2023-08-29 02:52:42,539 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-29 02:52:42,539 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2023-08-29 02:52:42,566 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-08-29 02:52:42,569 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 198 places, 219 transitions, 468 flow [2023-08-29 02:52:42,613 INFO L130 PetriNetUnfolder]: 58/457 cut-off events. [2023-08-29 02:52:42,613 INFO L131 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2023-08-29 02:52:42,618 INFO L83 FinitePrefix]: Finished finitePrefix Result has 485 conditions, 457 events. 58/457 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1745 event pairs, 1 based on Foata normal form. 0/371 useless extension candidates. Maximal degree in co-relation 301. Up to 16 conditions per place. [2023-08-29 02:52:42,618 INFO L82 GeneralOperation]: Start removeDead. Operand has 198 places, 219 transitions, 468 flow [2023-08-29 02:52:42,621 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 198 places, 219 transitions, 468 flow [2023-08-29 02:52:42,622 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 02:52:42,622 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 198 places, 219 transitions, 468 flow [2023-08-29 02:52:42,622 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 198 places, 219 transitions, 468 flow [2023-08-29 02:52:42,622 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 198 places, 219 transitions, 468 flow [2023-08-29 02:52:42,662 INFO L130 PetriNetUnfolder]: 58/457 cut-off events. [2023-08-29 02:52:42,662 INFO L131 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2023-08-29 02:52:42,667 INFO L83 FinitePrefix]: Finished finitePrefix Result has 485 conditions, 457 events. 58/457 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1745 event pairs, 1 based on Foata normal form. 0/371 useless extension candidates. Maximal degree in co-relation 301. Up to 16 conditions per place. [2023-08-29 02:52:42,681 INFO L119 LiptonReduction]: Number of co-enabled transitions 26928 [2023-08-29 02:52:44,969 INFO L134 LiptonReduction]: Checked pairs total: 98808 [2023-08-29 02:52:44,969 INFO L136 LiptonReduction]: Total number of compositions: 127 [2023-08-29 02:52:44,971 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 02:52:44,971 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;@400b496d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 02:52:44,971 INFO L358 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2023-08-29 02:52:44,976 INFO L130 PetriNetUnfolder]: 1/11 cut-off events. [2023-08-29 02:52:44,976 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 02:52:44,976 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:52:44,976 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-29 02:52:44,976 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [t_funErr2ASSERT_VIOLATIONDATA_RACE, t_funErr1ASSERT_VIOLATIONDATA_RACE, t_funErr2ASSERT_VIOLATIONDATA_RACE, t_funErr1ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2023-08-29 02:52:44,977 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:52:44,977 INFO L85 PathProgramCache]: Analyzing trace with hash 1324891907, now seen corresponding path program 1 times [2023-08-29 02:52:44,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:52:44,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714705998] [2023-08-29 02:52:44,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:52:44,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:52:44,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:52:44,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:52:44,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:52:44,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714705998] [2023-08-29 02:52:44,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1714705998] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:52:44,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:52:44,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 02:52:44,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305758723] [2023-08-29 02:52:44,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:52:44,997 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 02:52:44,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:52:44,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 02:52:44,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 02:52:45,006 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 184 out of 346 [2023-08-29 02:52:45,007 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 117 transitions, 264 flow. Second operand has 3 states, 3 states have (on average 185.66666666666666) internal successors, (557), 3 states have internal predecessors, (557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:52:45,007 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:52:45,007 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 184 of 346 [2023-08-29 02:52:45,007 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:52:50,145 INFO L130 PetriNetUnfolder]: 48690/78322 cut-off events. [2023-08-29 02:52:50,146 INFO L131 PetriNetUnfolder]: For 1374/1374 co-relation queries the response was YES. [2023-08-29 02:52:50,263 INFO L83 FinitePrefix]: Finished finitePrefix Result has 146778 conditions, 78322 events. 48690/78322 cut-off events. For 1374/1374 co-relation queries the response was YES. Maximal size of possible extension queue 1977. Compared 676680 event pairs, 43761 based on Foata normal form. 14303/83213 useless extension candidates. Maximal degree in co-relation 60990. Up to 67428 conditions per place. [2023-08-29 02:52:50,618 INFO L137 encePairwiseOnDemand]: 321/346 looper letters, 60 selfloop transitions, 2 changer transitions 0/107 dead transitions. [2023-08-29 02:52:50,619 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 107 transitions, 368 flow [2023-08-29 02:52:50,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 02:52:50,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 02:52:50,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 643 transitions. [2023-08-29 02:52:50,621 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6194605009633911 [2023-08-29 02:52:50,622 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 643 transitions. [2023-08-29 02:52:50,622 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 643 transitions. [2023-08-29 02:52:50,623 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:52:50,623 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 643 transitions. [2023-08-29 02:52:50,625 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 214.33333333333334) internal successors, (643), 3 states have internal predecessors, (643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:52:50,626 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 346.0) internal successors, (1384), 4 states have internal predecessors, (1384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:52:50,627 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 346.0) internal successors, (1384), 4 states have internal predecessors, (1384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:52:50,627 INFO L175 Difference]: Start difference. First operand has 99 places, 117 transitions, 264 flow. Second operand 3 states and 643 transitions. [2023-08-29 02:52:50,627 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 107 transitions, 368 flow [2023-08-29 02:52:50,629 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 107 transitions, 368 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 02:52:50,630 INFO L231 Difference]: Finished difference. Result has 101 places, 96 transitions, 232 flow [2023-08-29 02:52:50,630 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=346, PETRI_DIFFERENCE_MINUEND_FLOW=220, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=232, PETRI_PLACES=101, PETRI_TRANSITIONS=96} [2023-08-29 02:52:50,631 INFO L281 CegarLoopForPetriNet]: 99 programPoint places, 2 predicate places. [2023-08-29 02:52:50,631 INFO L495 AbstractCegarLoop]: Abstraction has has 101 places, 96 transitions, 232 flow [2023-08-29 02:52:50,631 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 185.66666666666666) internal successors, (557), 3 states have internal predecessors, (557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:52:50,631 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:52:50,631 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:52:50,632 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-08-29 02:52:50,632 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [t_funErr2ASSERT_VIOLATIONDATA_RACE, t_funErr1ASSERT_VIOLATIONDATA_RACE, t_funErr2ASSERT_VIOLATIONDATA_RACE, t_funErr1ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2023-08-29 02:52:50,632 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:52:50,632 INFO L85 PathProgramCache]: Analyzing trace with hash -383728423, now seen corresponding path program 1 times [2023-08-29 02:52:50,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:52:50,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372074349] [2023-08-29 02:52:50,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:52:50,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:52:50,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:52:50,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:52:50,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:52:50,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372074349] [2023-08-29 02:52:50,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1372074349] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:52:50,651 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:52:50,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 02:52:50,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029083720] [2023-08-29 02:52:50,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:52:50,652 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 02:52:50,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:52:50,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 02:52:50,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 02:52:50,690 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 161 out of 346 [2023-08-29 02:52:50,691 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 96 transitions, 232 flow. Second operand has 3 states, 3 states have (on average 163.33333333333334) internal successors, (490), 3 states have internal predecessors, (490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:52:50,691 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:52:50,692 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 161 of 346 [2023-08-29 02:52:50,692 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:53:15,867 INFO L130 PetriNetUnfolder]: 277680/427292 cut-off events. [2023-08-29 02:53:15,868 INFO L131 PetriNetUnfolder]: For 16950/16950 co-relation queries the response was YES. [2023-08-29 02:53:16,825 INFO L83 FinitePrefix]: Finished finitePrefix Result has 830194 conditions, 427292 events. 277680/427292 cut-off events. For 16950/16950 co-relation queries the response was YES. Maximal size of possible extension queue 7971. Compared 3937598 event pairs, 112559 based on Foata normal form. 0/382949 useless extension candidates. Maximal degree in co-relation 830082. Up to 202661 conditions per place. [2023-08-29 02:53:18,313 INFO L137 encePairwiseOnDemand]: 319/346 looper letters, 109 selfloop transitions, 20 changer transitions 0/156 dead transitions. [2023-08-29 02:53:18,314 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 156 transitions, 638 flow [2023-08-29 02:53:18,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 02:53:18,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 02:53:18,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 617 transitions. [2023-08-29 02:53:18,316 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.594412331406551 [2023-08-29 02:53:18,316 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 617 transitions. [2023-08-29 02:53:18,316 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 617 transitions. [2023-08-29 02:53:18,317 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:53:18,317 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 617 transitions. [2023-08-29 02:53:18,318 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 205.66666666666666) internal successors, (617), 3 states have internal predecessors, (617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:53:18,319 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 346.0) internal successors, (1384), 4 states have internal predecessors, (1384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:53:18,320 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 346.0) internal successors, (1384), 4 states have internal predecessors, (1384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:53:18,320 INFO L175 Difference]: Start difference. First operand has 101 places, 96 transitions, 232 flow. Second operand 3 states and 617 transitions. [2023-08-29 02:53:18,320 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 156 transitions, 638 flow [2023-08-29 02:53:18,335 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 156 transitions, 635 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 02:53:18,336 INFO L231 Difference]: Finished difference. Result has 104 places, 116 transitions, 404 flow [2023-08-29 02:53:18,336 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=346, PETRI_DIFFERENCE_MINUEND_FLOW=230, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=404, PETRI_PLACES=104, PETRI_TRANSITIONS=116} [2023-08-29 02:53:18,337 INFO L281 CegarLoopForPetriNet]: 99 programPoint places, 5 predicate places. [2023-08-29 02:53:18,337 INFO L495 AbstractCegarLoop]: Abstraction has has 104 places, 116 transitions, 404 flow [2023-08-29 02:53:18,337 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 163.33333333333334) internal successors, (490), 3 states have internal predecessors, (490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:53:18,337 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:53:18,338 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:53:18,338 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-08-29 02:53:18,338 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [t_funErr2ASSERT_VIOLATIONDATA_RACE, t_funErr1ASSERT_VIOLATIONDATA_RACE, t_funErr2ASSERT_VIOLATIONDATA_RACE, t_funErr1ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2023-08-29 02:53:18,338 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:53:18,338 INFO L85 PathProgramCache]: Analyzing trace with hash 827688397, now seen corresponding path program 1 times [2023-08-29 02:53:18,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:53:18,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354734224] [2023-08-29 02:53:18,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:53:18,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:53:18,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:53:18,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:53:18,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:53:18,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354734224] [2023-08-29 02:53:18,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [354734224] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:53:18,358 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:53:18,358 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 02:53:18,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707111652] [2023-08-29 02:53:18,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:53:18,359 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 02:53:18,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:53:18,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 02:53:18,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 02:53:18,396 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 346 [2023-08-29 02:53:18,397 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 116 transitions, 404 flow. Second operand has 3 states, 3 states have (on average 174.0) internal successors, (522), 3 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:53:18,397 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:53:18,398 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 346 [2023-08-29 02:53:18,398 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:53:24,598 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1235] L701-15-->L701-17: Formula: (= |v_#race~global~0_70| 0) InVars {} OutVars{t_funThread1of3ForFork0_#t~nondet7=|v_t_funThread1of3ForFork0_#t~nondet7_7|, #race~global~0=|v_#race~global~0_70|} AuxVars[] AssignedVars[t_funThread1of3ForFork0_#t~nondet7, #race~global~0][90], [208#(= |#race~global~0| 0), 171#L701-17true, 182#L701-4true, Black: 206#true, t_funThread1of3ForFork0InUse, 99#L711-14true, t_funThread2of3ForFork0InUse, t_funThread3of3ForFork0InUse, Black: 203#(= |ULTIMATE.start_main_~i~0#1| 0), 23#L701-4true, 212#true]) [2023-08-29 02:53:24,598 INFO L383 tUnfolder$Statistics]: this new event has 43 ancestors and is cut-off event [2023-08-29 02:53:24,598 INFO L386 tUnfolder$Statistics]: existing Event has 43 ancestors and is cut-off event [2023-08-29 02:53:24,598 INFO L386 tUnfolder$Statistics]: existing Event has 43 ancestors and is cut-off event [2023-08-29 02:53:24,599 INFO L386 tUnfolder$Statistics]: existing Event has 43 ancestors and is cut-off event [2023-08-29 02:53:25,516 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1287] L701-6-->L701-8: Formula: (= |v_#race~global~0_84| |v_t_funThread2of3ForFork0_#t~nondet6_15|) InVars {} OutVars{t_funThread2of3ForFork0_#t~nondet6=|v_t_funThread2of3ForFork0_#t~nondet6_15|, #race~global~0=|v_#race~global~0_84|} AuxVars[] AssignedVars[t_funThread2of3ForFork0_#t~nondet6, #race~global~0][50], [139#L701-27true, Black: 208#(= |#race~global~0| 0), t_funThread1of3ForFork0InUse, 99#L711-14true, t_funThread2of3ForFork0InUse, t_funThread3of3ForFork0InUse, 206#true, 152#L701-8true, Black: 203#(= |ULTIMATE.start_main_~i~0#1| 0), 212#true, 23#L701-4true]) [2023-08-29 02:53:25,517 INFO L383 tUnfolder$Statistics]: this new event has 44 ancestors and is cut-off event [2023-08-29 02:53:25,517 INFO L386 tUnfolder$Statistics]: existing Event has 44 ancestors and is cut-off event [2023-08-29 02:53:25,517 INFO L386 tUnfolder$Statistics]: existing Event has 44 ancestors and is cut-off event [2023-08-29 02:53:25,517 INFO L386 tUnfolder$Statistics]: existing Event has 44 ancestors and is cut-off event [2023-08-29 02:53:25,519 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1235] L701-15-->L701-17: Formula: (= |v_#race~global~0_70| 0) InVars {} OutVars{t_funThread1of3ForFork0_#t~nondet7=|v_t_funThread1of3ForFork0_#t~nondet7_7|, #race~global~0=|v_#race~global~0_70|} AuxVars[] AssignedVars[t_funThread1of3ForFork0_#t~nondet7, #race~global~0][90], [171#L701-17true, 208#(= |#race~global~0| 0), 182#L701-4true, Black: 206#true, t_funThread1of3ForFork0InUse, t_funThread2of3ForFork0InUse, 110#L711-9true, t_funThread3of3ForFork0InUse, Black: 203#(= |ULTIMATE.start_main_~i~0#1| 0), 212#true, 23#L701-4true]) [2023-08-29 02:53:25,519 INFO L383 tUnfolder$Statistics]: this new event has 44 ancestors and is cut-off event [2023-08-29 02:53:25,519 INFO L386 tUnfolder$Statistics]: existing Event has 44 ancestors and is cut-off event [2023-08-29 02:53:25,519 INFO L386 tUnfolder$Statistics]: existing Event has 44 ancestors and is cut-off event [2023-08-29 02:53:25,519 INFO L386 tUnfolder$Statistics]: existing Event has 44 ancestors and is cut-off event [2023-08-29 02:53:25,519 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1235] L701-15-->L701-17: Formula: (= |v_#race~global~0_70| 0) InVars {} OutVars{t_funThread1of3ForFork0_#t~nondet7=|v_t_funThread1of3ForFork0_#t~nondet7_7|, #race~global~0=|v_#race~global~0_70|} AuxVars[] AssignedVars[t_funThread1of3ForFork0_#t~nondet7, #race~global~0][90], [208#(= |#race~global~0| 0), 171#L701-17true, 182#L701-4true, Black: 206#true, t_funThread1of3ForFork0InUse, 2#ULTIMATE.startEXITtrue, t_funThread2of3ForFork0InUse, t_funThread3of3ForFork0InUse, Black: 203#(= |ULTIMATE.start_main_~i~0#1| 0), 23#L701-4true, 212#true]) [2023-08-29 02:53:25,519 INFO L383 tUnfolder$Statistics]: this new event has 44 ancestors and is cut-off event [2023-08-29 02:53:25,519 INFO L386 tUnfolder$Statistics]: existing Event has 44 ancestors and is cut-off event [2023-08-29 02:53:25,519 INFO L386 tUnfolder$Statistics]: existing Event has 44 ancestors and is cut-off event [2023-08-29 02:53:25,519 INFO L386 tUnfolder$Statistics]: existing Event has 44 ancestors and is cut-off event [2023-08-29 02:53:25,520 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1263] L701-6-->L701-8: Formula: (= |v_#race~global~0_74| |v_t_funThread3of3ForFork0_#t~nondet6_15|) InVars {} OutVars{t_funThread3of3ForFork0_#t~nondet6=|v_t_funThread3of3ForFork0_#t~nondet6_15|, #race~global~0=|v_#race~global~0_74|} AuxVars[] AssignedVars[t_funThread3of3ForFork0_#t~nondet6, #race~global~0][75], [139#L701-27true, 182#L701-4true, Black: 208#(= |#race~global~0| 0), t_funThread1of3ForFork0InUse, 99#L711-14true, t_funThread2of3ForFork0InUse, t_funThread3of3ForFork0InUse, 206#true, 45#L701-8true, Black: 203#(= |ULTIMATE.start_main_~i~0#1| 0), 212#true]) [2023-08-29 02:53:25,520 INFO L383 tUnfolder$Statistics]: this new event has 44 ancestors and is cut-off event [2023-08-29 02:53:25,520 INFO L386 tUnfolder$Statistics]: existing Event has 44 ancestors and is cut-off event [2023-08-29 02:53:25,520 INFO L386 tUnfolder$Statistics]: existing Event has 44 ancestors and is cut-off event [2023-08-29 02:53:25,520 INFO L386 tUnfolder$Statistics]: existing Event has 44 ancestors and is cut-off event [2023-08-29 02:53:26,440 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1287] L701-6-->L701-8: Formula: (= |v_#race~global~0_84| |v_t_funThread2of3ForFork0_#t~nondet6_15|) InVars {} OutVars{t_funThread2of3ForFork0_#t~nondet6=|v_t_funThread2of3ForFork0_#t~nondet6_15|, #race~global~0=|v_#race~global~0_84|} AuxVars[] AssignedVars[t_funThread2of3ForFork0_#t~nondet6, #race~global~0][50], [139#L701-27true, Black: 208#(= |#race~global~0| 0), t_funThread1of3ForFork0InUse, t_funThread2of3ForFork0InUse, 110#L711-9true, t_funThread3of3ForFork0InUse, 206#true, 152#L701-8true, Black: 203#(= |ULTIMATE.start_main_~i~0#1| 0), 23#L701-4true, 212#true]) [2023-08-29 02:53:26,440 INFO L383 tUnfolder$Statistics]: this new event has 45 ancestors and is cut-off event [2023-08-29 02:53:26,440 INFO L386 tUnfolder$Statistics]: existing Event has 45 ancestors and is cut-off event [2023-08-29 02:53:26,440 INFO L386 tUnfolder$Statistics]: existing Event has 45 ancestors and is cut-off event [2023-08-29 02:53:26,441 INFO L386 tUnfolder$Statistics]: existing Event has 45 ancestors and is cut-off event [2023-08-29 02:53:26,441 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1287] L701-6-->L701-8: Formula: (= |v_#race~global~0_84| |v_t_funThread2of3ForFork0_#t~nondet6_15|) InVars {} OutVars{t_funThread2of3ForFork0_#t~nondet6=|v_t_funThread2of3ForFork0_#t~nondet6_15|, #race~global~0=|v_#race~global~0_84|} AuxVars[] AssignedVars[t_funThread2of3ForFork0_#t~nondet6, #race~global~0][50], [139#L701-27true, Black: 208#(= |#race~global~0| 0), t_funThread1of3ForFork0InUse, 2#ULTIMATE.startEXITtrue, t_funThread2of3ForFork0InUse, t_funThread3of3ForFork0InUse, 206#true, 152#L701-8true, Black: 203#(= |ULTIMATE.start_main_~i~0#1| 0), 212#true, 23#L701-4true]) [2023-08-29 02:53:26,453 INFO L383 tUnfolder$Statistics]: this new event has 45 ancestors and is cut-off event [2023-08-29 02:53:26,453 INFO L386 tUnfolder$Statistics]: existing Event has 45 ancestors and is cut-off event [2023-08-29 02:53:26,453 INFO L386 tUnfolder$Statistics]: existing Event has 45 ancestors and is cut-off event [2023-08-29 02:53:26,453 INFO L386 tUnfolder$Statistics]: existing Event has 45 ancestors and is cut-off event [2023-08-29 02:53:26,460 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1263] L701-6-->L701-8: Formula: (= |v_#race~global~0_74| |v_t_funThread3of3ForFork0_#t~nondet6_15|) InVars {} OutVars{t_funThread3of3ForFork0_#t~nondet6=|v_t_funThread3of3ForFork0_#t~nondet6_15|, #race~global~0=|v_#race~global~0_74|} AuxVars[] AssignedVars[t_funThread3of3ForFork0_#t~nondet6, #race~global~0][75], [139#L701-27true, 182#L701-4true, Black: 208#(= |#race~global~0| 0), t_funThread1of3ForFork0InUse, t_funThread2of3ForFork0InUse, 110#L711-9true, t_funThread3of3ForFork0InUse, 206#true, 45#L701-8true, Black: 203#(= |ULTIMATE.start_main_~i~0#1| 0), 212#true]) [2023-08-29 02:53:26,460 INFO L383 tUnfolder$Statistics]: this new event has 45 ancestors and is cut-off event [2023-08-29 02:53:26,460 INFO L386 tUnfolder$Statistics]: existing Event has 45 ancestors and is cut-off event [2023-08-29 02:53:26,460 INFO L386 tUnfolder$Statistics]: existing Event has 45 ancestors and is cut-off event [2023-08-29 02:53:26,460 INFO L386 tUnfolder$Statistics]: existing Event has 45 ancestors and is cut-off event [2023-08-29 02:53:26,461 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1263] L701-6-->L701-8: Formula: (= |v_#race~global~0_74| |v_t_funThread3of3ForFork0_#t~nondet6_15|) InVars {} OutVars{t_funThread3of3ForFork0_#t~nondet6=|v_t_funThread3of3ForFork0_#t~nondet6_15|, #race~global~0=|v_#race~global~0_74|} AuxVars[] AssignedVars[t_funThread3of3ForFork0_#t~nondet6, #race~global~0][75], [139#L701-27true, 182#L701-4true, Black: 208#(= |#race~global~0| 0), t_funThread1of3ForFork0InUse, 2#ULTIMATE.startEXITtrue, t_funThread2of3ForFork0InUse, t_funThread3of3ForFork0InUse, 206#true, 45#L701-8true, Black: 203#(= |ULTIMATE.start_main_~i~0#1| 0), 212#true]) [2023-08-29 02:53:26,461 INFO L383 tUnfolder$Statistics]: this new event has 45 ancestors and is cut-off event [2023-08-29 02:53:26,461 INFO L386 tUnfolder$Statistics]: existing Event has 45 ancestors and is cut-off event [2023-08-29 02:53:26,461 INFO L386 tUnfolder$Statistics]: existing Event has 45 ancestors and is cut-off event [2023-08-29 02:53:26,461 INFO L386 tUnfolder$Statistics]: existing Event has 45 ancestors and is cut-off event [2023-08-29 02:53:43,952 INFO L130 PetriNetUnfolder]: 244803/388275 cut-off events. [2023-08-29 02:53:43,953 INFO L131 PetriNetUnfolder]: For 215765/221637 co-relation queries the response was YES. [2023-08-29 02:53:45,011 INFO L83 FinitePrefix]: Finished finitePrefix Result has 930008 conditions, 388275 events. 244803/388275 cut-off events. For 215765/221637 co-relation queries the response was YES. Maximal size of possible extension queue 8369. Compared 3795265 event pairs, 157635 based on Foata normal form. 878/337497 useless extension candidates. Maximal degree in co-relation 290233. Up to 297557 conditions per place. [2023-08-29 02:53:46,708 INFO L137 encePairwiseOnDemand]: 333/346 looper letters, 98 selfloop transitions, 22 changer transitions 0/167 dead transitions. [2023-08-29 02:53:46,709 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 167 transitions, 824 flow [2023-08-29 02:53:46,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 02:53:46,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 02:53:46,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 610 transitions. [2023-08-29 02:53:46,711 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5876685934489403 [2023-08-29 02:53:46,711 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 610 transitions. [2023-08-29 02:53:46,711 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 610 transitions. [2023-08-29 02:53:46,711 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:53:46,711 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 610 transitions. [2023-08-29 02:53:46,713 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 203.33333333333334) internal successors, (610), 3 states have internal predecessors, (610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:53:46,714 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 346.0) internal successors, (1384), 4 states have internal predecessors, (1384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:53:46,715 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 346.0) internal successors, (1384), 4 states have internal predecessors, (1384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:53:46,715 INFO L175 Difference]: Start difference. First operand has 104 places, 116 transitions, 404 flow. Second operand 3 states and 610 transitions. [2023-08-29 02:53:46,715 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 167 transitions, 824 flow [2023-08-29 02:53:47,091 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 167 transitions, 766 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 02:53:47,094 INFO L231 Difference]: Finished difference. Result has 106 places, 136 transitions, 570 flow [2023-08-29 02:53:47,094 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=346, PETRI_DIFFERENCE_MINUEND_FLOW=364, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=570, PETRI_PLACES=106, PETRI_TRANSITIONS=136} [2023-08-29 02:53:47,094 INFO L281 CegarLoopForPetriNet]: 99 programPoint places, 7 predicate places. [2023-08-29 02:53:47,094 INFO L495 AbstractCegarLoop]: Abstraction has has 106 places, 136 transitions, 570 flow [2023-08-29 02:53:47,095 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 174.0) internal successors, (522), 3 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:53:47,095 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:53:47,095 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:53:47,095 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-08-29 02:53:47,095 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [t_funErr2ASSERT_VIOLATIONDATA_RACE, t_funErr1ASSERT_VIOLATIONDATA_RACE, t_funErr2ASSERT_VIOLATIONDATA_RACE, t_funErr1ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2023-08-29 02:53:47,095 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:53:47,096 INFO L85 PathProgramCache]: Analyzing trace with hash 81196201, now seen corresponding path program 1 times [2023-08-29 02:53:47,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:53:47,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689631956] [2023-08-29 02:53:47,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:53:47,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:53:47,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:53:47,124 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-29 02:53:47,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:53:47,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689631956] [2023-08-29 02:53:47,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [689631956] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:53:47,125 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:53:47,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 02:53:47,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408048415] [2023-08-29 02:53:47,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:53:47,126 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 02:53:47,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:53:47,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 02:53:47,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 02:53:47,167 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 346 [2023-08-29 02:53:47,168 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 136 transitions, 570 flow. Second operand has 3 states, 3 states have (on average 174.0) internal successors, (522), 3 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:53:47,168 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:53:47,168 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 346 [2023-08-29 02:53:47,168 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:53:56,433 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1281] L701-15-->L701-17: Formula: (= |v_#race~global~0_80| 0) InVars {} OutVars{t_funThread2of3ForFork0_#t~nondet7=|v_t_funThread2of3ForFork0_#t~nondet7_7|, #race~global~0=|v_#race~global~0_80|} AuxVars[] AssignedVars[t_funThread2of3ForFork0_#t~nondet7, #race~global~0][100], [t_funThread1of3ForFork0InUse, Black: 206#true, 83#t_funErr1ASSERT_VIOLATIONDATA_RACEtrue, 185#L701-17true, t_funThread2of3ForFork0InUse, 44#L691true, t_funThread3of3ForFork0InUse, Black: 214#(= |t_funThread1of3ForFork0_#t~nondet6| |#race~global~0|), 218#true, Black: 203#(= |ULTIMATE.start_main_~i~0#1| 0), 212#true, 23#L701-4true]) [2023-08-29 02:53:56,433 INFO L383 tUnfolder$Statistics]: this new event has 45 ancestors and is cut-off event [2023-08-29 02:53:56,433 INFO L386 tUnfolder$Statistics]: existing Event has 45 ancestors and is cut-off event [2023-08-29 02:53:56,433 INFO L386 tUnfolder$Statistics]: existing Event has 45 ancestors and is cut-off event [2023-08-29 02:53:56,433 INFO L386 tUnfolder$Statistics]: existing Event has 45 ancestors and is cut-off event [2023-08-29 02:53:56,433 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1281] L701-15-->L701-17: Formula: (= |v_#race~global~0_80| 0) InVars {} OutVars{t_funThread2of3ForFork0_#t~nondet7=|v_t_funThread2of3ForFork0_#t~nondet7_7|, #race~global~0=|v_#race~global~0_80|} AuxVars[] AssignedVars[t_funThread2of3ForFork0_#t~nondet7, #race~global~0][100], [42#L691-2true, t_funThread1of3ForFork0InUse, Black: 206#true, 83#t_funErr1ASSERT_VIOLATIONDATA_RACEtrue, 185#L701-17true, t_funThread2of3ForFork0InUse, t_funThread3of3ForFork0InUse, Black: 214#(= |t_funThread1of3ForFork0_#t~nondet6| |#race~global~0|), 218#true, Black: 203#(= |ULTIMATE.start_main_~i~0#1| 0), 212#true, 23#L701-4true]) [2023-08-29 02:53:56,433 INFO L383 tUnfolder$Statistics]: this new event has 45 ancestors and is cut-off event [2023-08-29 02:53:56,433 INFO L386 tUnfolder$Statistics]: existing Event has 45 ancestors and is cut-off event [2023-08-29 02:53:56,433 INFO L386 tUnfolder$Statistics]: existing Event has 45 ancestors and is cut-off event [2023-08-29 02:53:56,433 INFO L386 tUnfolder$Statistics]: existing Event has 45 ancestors and is cut-off event [2023-08-29 02:53:57,512 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1281] L701-15-->L701-17: Formula: (= |v_#race~global~0_80| 0) InVars {} OutVars{t_funThread2of3ForFork0_#t~nondet7=|v_t_funThread2of3ForFork0_#t~nondet7_7|, #race~global~0=|v_#race~global~0_80|} AuxVars[] AssignedVars[t_funThread2of3ForFork0_#t~nondet7, #race~global~0][100], [t_funThread1of3ForFork0InUse, Black: 206#true, 83#t_funErr1ASSERT_VIOLATIONDATA_RACEtrue, 185#L701-17true, t_funThread2of3ForFork0InUse, t_funThread3of3ForFork0InUse, Black: 214#(= |t_funThread1of3ForFork0_#t~nondet6| |#race~global~0|), 56#L709-5true, 218#true, Black: 203#(= |ULTIMATE.start_main_~i~0#1| 0), 212#true, 23#L701-4true]) [2023-08-29 02:53:57,513 INFO L383 tUnfolder$Statistics]: this new event has 46 ancestors and is cut-off event [2023-08-29 02:53:57,513 INFO L386 tUnfolder$Statistics]: existing Event has 46 ancestors and is cut-off event [2023-08-29 02:53:57,513 INFO L386 tUnfolder$Statistics]: existing Event has 46 ancestors and is cut-off event [2023-08-29 02:53:57,513 INFO L386 tUnfolder$Statistics]: existing Event has 46 ancestors and is cut-off event [2023-08-29 02:53:58,627 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1281] L701-15-->L701-17: Formula: (= |v_#race~global~0_80| 0) InVars {} OutVars{t_funThread2of3ForFork0_#t~nondet7=|v_t_funThread2of3ForFork0_#t~nondet7_7|, #race~global~0=|v_#race~global~0_80|} AuxVars[] AssignedVars[t_funThread2of3ForFork0_#t~nondet7, #race~global~0][100], [t_funThread1of3ForFork0InUse, Black: 206#true, 83#t_funErr1ASSERT_VIOLATIONDATA_RACEtrue, 99#L711-14true, 185#L701-17true, t_funThread2of3ForFork0InUse, t_funThread3of3ForFork0InUse, Black: 214#(= |t_funThread1of3ForFork0_#t~nondet6| |#race~global~0|), 218#true, Black: 203#(= |ULTIMATE.start_main_~i~0#1| 0), 212#true, 23#L701-4true]) [2023-08-29 02:53:58,627 INFO L383 tUnfolder$Statistics]: this new event has 47 ancestors and is cut-off event [2023-08-29 02:53:58,627 INFO L386 tUnfolder$Statistics]: existing Event has 47 ancestors and is cut-off event [2023-08-29 02:53:58,627 INFO L386 tUnfolder$Statistics]: existing Event has 47 ancestors and is cut-off event [2023-08-29 02:53:58,627 INFO L386 tUnfolder$Statistics]: existing Event has 47 ancestors and is cut-off event [2023-08-29 02:53:58,643 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1263] L701-6-->L701-8: Formula: (= |v_#race~global~0_74| |v_t_funThread3of3ForFork0_#t~nondet6_15|) InVars {} OutVars{t_funThread3of3ForFork0_#t~nondet6=|v_t_funThread3of3ForFork0_#t~nondet6_15|, #race~global~0=|v_#race~global~0_74|} AuxVars[] AssignedVars[t_funThread3of3ForFork0_#t~nondet6, #race~global~0][70], [Black: 208#(= |#race~global~0| 0), t_funThread1of3ForFork0InUse, 83#t_funErr1ASSERT_VIOLATIONDATA_RACEtrue, t_funThread2of3ForFork0InUse, 44#L691true, t_funThread3of3ForFork0InUse, Black: 214#(= |t_funThread1of3ForFork0_#t~nondet6| |#race~global~0|), 131#L701-27true, 45#L701-8true, 218#true, Black: 203#(= |ULTIMATE.start_main_~i~0#1| 0), 212#true]) [2023-08-29 02:53:58,643 INFO L383 tUnfolder$Statistics]: this new event has 46 ancestors and is not cut-off event [2023-08-29 02:53:58,643 INFO L386 tUnfolder$Statistics]: existing Event has 46 ancestors and is not cut-off event [2023-08-29 02:53:58,643 INFO L386 tUnfolder$Statistics]: existing Event has 46 ancestors and is not cut-off event [2023-08-29 02:53:58,644 INFO L386 tUnfolder$Statistics]: existing Event has 46 ancestors and is not cut-off event [2023-08-29 02:53:58,644 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1263] L701-6-->L701-8: Formula: (= |v_#race~global~0_74| |v_t_funThread3of3ForFork0_#t~nondet6_15|) InVars {} OutVars{t_funThread3of3ForFork0_#t~nondet6=|v_t_funThread3of3ForFork0_#t~nondet6_15|, #race~global~0=|v_#race~global~0_74|} AuxVars[] AssignedVars[t_funThread3of3ForFork0_#t~nondet6, #race~global~0][70], [Black: 208#(= |#race~global~0| 0), t_funThread1of3ForFork0InUse, 83#t_funErr1ASSERT_VIOLATIONDATA_RACEtrue, t_funThread2of3ForFork0InUse, t_funThread3of3ForFork0InUse, Black: 214#(= |t_funThread1of3ForFork0_#t~nondet6| |#race~global~0|), 131#L701-27true, 56#L709-5true, 45#L701-8true, 218#true, Black: 203#(= |ULTIMATE.start_main_~i~0#1| 0), 212#true]) [2023-08-29 02:53:58,644 INFO L383 tUnfolder$Statistics]: this new event has 47 ancestors and is cut-off event [2023-08-29 02:53:58,644 INFO L386 tUnfolder$Statistics]: existing Event has 47 ancestors and is cut-off event [2023-08-29 02:53:58,644 INFO L386 tUnfolder$Statistics]: existing Event has 47 ancestors and is cut-off event [2023-08-29 02:53:58,644 INFO L386 tUnfolder$Statistics]: existing Event has 47 ancestors and is cut-off event [2023-08-29 02:53:58,688 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1263] L701-6-->L701-8: Formula: (= |v_#race~global~0_74| |v_t_funThread3of3ForFork0_#t~nondet6_15|) InVars {} OutVars{t_funThread3of3ForFork0_#t~nondet6=|v_t_funThread3of3ForFork0_#t~nondet6_15|, #race~global~0=|v_#race~global~0_74|} AuxVars[] AssignedVars[t_funThread3of3ForFork0_#t~nondet6, #race~global~0][70], [Black: 208#(= |#race~global~0| 0), 42#L691-2true, t_funThread1of3ForFork0InUse, 83#t_funErr1ASSERT_VIOLATIONDATA_RACEtrue, t_funThread2of3ForFork0InUse, t_funThread3of3ForFork0InUse, Black: 214#(= |t_funThread1of3ForFork0_#t~nondet6| |#race~global~0|), 131#L701-27true, 45#L701-8true, 218#true, Black: 203#(= |ULTIMATE.start_main_~i~0#1| 0), 212#true]) [2023-08-29 02:53:58,688 INFO L383 tUnfolder$Statistics]: this new event has 46 ancestors and is not cut-off event [2023-08-29 02:53:58,689 INFO L386 tUnfolder$Statistics]: existing Event has 46 ancestors and is not cut-off event [2023-08-29 02:53:58,689 INFO L386 tUnfolder$Statistics]: existing Event has 46 ancestors and is not cut-off event [2023-08-29 02:53:58,689 INFO L386 tUnfolder$Statistics]: existing Event has 46 ancestors and is not cut-off event [2023-08-29 02:53:59,839 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1281] L701-15-->L701-17: Formula: (= |v_#race~global~0_80| 0) InVars {} OutVars{t_funThread2of3ForFork0_#t~nondet7=|v_t_funThread2of3ForFork0_#t~nondet7_7|, #race~global~0=|v_#race~global~0_80|} AuxVars[] AssignedVars[t_funThread2of3ForFork0_#t~nondet7, #race~global~0][100], [Black: 206#true, t_funThread1of3ForFork0InUse, 185#L701-17true, 83#t_funErr1ASSERT_VIOLATIONDATA_RACEtrue, t_funThread2of3ForFork0InUse, 110#L711-9true, t_funThread3of3ForFork0InUse, Black: 214#(= |t_funThread1of3ForFork0_#t~nondet6| |#race~global~0|), 218#true, Black: 203#(= |ULTIMATE.start_main_~i~0#1| 0), 212#true, 23#L701-4true]) [2023-08-29 02:53:59,839 INFO L383 tUnfolder$Statistics]: this new event has 48 ancestors and is cut-off event [2023-08-29 02:53:59,839 INFO L386 tUnfolder$Statistics]: existing Event has 48 ancestors and is cut-off event [2023-08-29 02:53:59,839 INFO L386 tUnfolder$Statistics]: existing Event has 48 ancestors and is cut-off event [2023-08-29 02:53:59,839 INFO L386 tUnfolder$Statistics]: existing Event has 48 ancestors and is cut-off event [2023-08-29 02:53:59,839 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1281] L701-15-->L701-17: Formula: (= |v_#race~global~0_80| 0) InVars {} OutVars{t_funThread2of3ForFork0_#t~nondet7=|v_t_funThread2of3ForFork0_#t~nondet7_7|, #race~global~0=|v_#race~global~0_80|} AuxVars[] AssignedVars[t_funThread2of3ForFork0_#t~nondet7, #race~global~0][100], [t_funThread1of3ForFork0InUse, Black: 206#true, 83#t_funErr1ASSERT_VIOLATIONDATA_RACEtrue, 185#L701-17true, t_funThread2of3ForFork0InUse, 2#ULTIMATE.startEXITtrue, t_funThread3of3ForFork0InUse, Black: 214#(= |t_funThread1of3ForFork0_#t~nondet6| |#race~global~0|), 218#true, Black: 203#(= |ULTIMATE.start_main_~i~0#1| 0), 212#true, 23#L701-4true]) [2023-08-29 02:53:59,839 INFO L383 tUnfolder$Statistics]: this new event has 48 ancestors and is cut-off event [2023-08-29 02:53:59,839 INFO L386 tUnfolder$Statistics]: existing Event has 48 ancestors and is cut-off event [2023-08-29 02:53:59,839 INFO L386 tUnfolder$Statistics]: existing Event has 48 ancestors and is cut-off event [2023-08-29 02:53:59,840 INFO L386 tUnfolder$Statistics]: existing Event has 48 ancestors and is cut-off event [2023-08-29 02:53:59,844 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1263] L701-6-->L701-8: Formula: (= |v_#race~global~0_74| |v_t_funThread3of3ForFork0_#t~nondet6_15|) InVars {} OutVars{t_funThread3of3ForFork0_#t~nondet6=|v_t_funThread3of3ForFork0_#t~nondet6_15|, #race~global~0=|v_#race~global~0_74|} AuxVars[] AssignedVars[t_funThread3of3ForFork0_#t~nondet6, #race~global~0][70], [Black: 208#(= |#race~global~0| 0), t_funThread1of3ForFork0InUse, 99#L711-14true, 83#t_funErr1ASSERT_VIOLATIONDATA_RACEtrue, t_funThread2of3ForFork0InUse, t_funThread3of3ForFork0InUse, Black: 214#(= |t_funThread1of3ForFork0_#t~nondet6| |#race~global~0|), 131#L701-27true, 45#L701-8true, 218#true, Black: 203#(= |ULTIMATE.start_main_~i~0#1| 0), 212#true]) [2023-08-29 02:53:59,844 INFO L383 tUnfolder$Statistics]: this new event has 48 ancestors and is cut-off event [2023-08-29 02:53:59,845 INFO L386 tUnfolder$Statistics]: existing Event has 48 ancestors and is cut-off event [2023-08-29 02:53:59,845 INFO L386 tUnfolder$Statistics]: existing Event has 48 ancestors and is cut-off event [2023-08-29 02:53:59,845 INFO L386 tUnfolder$Statistics]: existing Event has 48 ancestors and is cut-off event [2023-08-29 02:54:01,107 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1263] L701-6-->L701-8: Formula: (= |v_#race~global~0_74| |v_t_funThread3of3ForFork0_#t~nondet6_15|) InVars {} OutVars{t_funThread3of3ForFork0_#t~nondet6=|v_t_funThread3of3ForFork0_#t~nondet6_15|, #race~global~0=|v_#race~global~0_74|} AuxVars[] AssignedVars[t_funThread3of3ForFork0_#t~nondet6, #race~global~0][70], [Black: 208#(= |#race~global~0| 0), t_funThread1of3ForFork0InUse, 83#t_funErr1ASSERT_VIOLATIONDATA_RACEtrue, t_funThread2of3ForFork0InUse, 110#L711-9true, t_funThread3of3ForFork0InUse, Black: 214#(= |t_funThread1of3ForFork0_#t~nondet6| |#race~global~0|), 131#L701-27true, 45#L701-8true, 218#true, Black: 203#(= |ULTIMATE.start_main_~i~0#1| 0), 212#true]) [2023-08-29 02:54:01,107 INFO L383 tUnfolder$Statistics]: this new event has 49 ancestors and is cut-off event [2023-08-29 02:54:01,107 INFO L386 tUnfolder$Statistics]: existing Event has 49 ancestors and is cut-off event [2023-08-29 02:54:01,107 INFO L386 tUnfolder$Statistics]: existing Event has 49 ancestors and is cut-off event [2023-08-29 02:54:01,108 INFO L386 tUnfolder$Statistics]: existing Event has 49 ancestors and is cut-off event [2023-08-29 02:54:01,108 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1263] L701-6-->L701-8: Formula: (= |v_#race~global~0_74| |v_t_funThread3of3ForFork0_#t~nondet6_15|) InVars {} OutVars{t_funThread3of3ForFork0_#t~nondet6=|v_t_funThread3of3ForFork0_#t~nondet6_15|, #race~global~0=|v_#race~global~0_74|} AuxVars[] AssignedVars[t_funThread3of3ForFork0_#t~nondet6, #race~global~0][70], [Black: 208#(= |#race~global~0| 0), t_funThread1of3ForFork0InUse, 83#t_funErr1ASSERT_VIOLATIONDATA_RACEtrue, t_funThread2of3ForFork0InUse, 2#ULTIMATE.startEXITtrue, t_funThread3of3ForFork0InUse, Black: 214#(= |t_funThread1of3ForFork0_#t~nondet6| |#race~global~0|), 131#L701-27true, 45#L701-8true, 218#true, Black: 203#(= |ULTIMATE.start_main_~i~0#1| 0), 212#true]) [2023-08-29 02:54:01,108 INFO L383 tUnfolder$Statistics]: this new event has 49 ancestors and is cut-off event [2023-08-29 02:54:01,108 INFO L386 tUnfolder$Statistics]: existing Event has 49 ancestors and is cut-off event [2023-08-29 02:54:01,108 INFO L386 tUnfolder$Statistics]: existing Event has 49 ancestors and is cut-off event [2023-08-29 02:54:01,108 INFO L386 tUnfolder$Statistics]: existing Event has 49 ancestors and is cut-off event [2023-08-29 02:54:07,967 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1281] L701-15-->L701-17: Formula: (= |v_#race~global~0_80| 0) InVars {} OutVars{t_funThread2of3ForFork0_#t~nondet7=|v_t_funThread2of3ForFork0_#t~nondet7_7|, #race~global~0=|v_#race~global~0_80|} AuxVars[] AssignedVars[t_funThread2of3ForFork0_#t~nondet7, #race~global~0][100], [t_funThread1of3ForFork0InUse, Black: 206#true, 185#L701-17true, t_funThread2of3ForFork0InUse, t_funThread3of3ForFork0InUse, Black: 214#(= |t_funThread1of3ForFork0_#t~nondet6| |#race~global~0|), 168#L701-27true, 176#L701-18true, 218#true, Black: 203#(= |ULTIMATE.start_main_~i~0#1| 0), 150#L709-3true, 212#true]) [2023-08-29 02:54:07,967 INFO L383 tUnfolder$Statistics]: this new event has 53 ancestors and is cut-off event [2023-08-29 02:54:07,967 INFO L386 tUnfolder$Statistics]: existing Event has 53 ancestors and is cut-off event [2023-08-29 02:54:07,968 INFO L386 tUnfolder$Statistics]: existing Event has 53 ancestors and is cut-off event [2023-08-29 02:54:07,968 INFO L386 tUnfolder$Statistics]: existing Event has 53 ancestors and is cut-off event [2023-08-29 02:54:07,972 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1282] L701-15-->L701-17: Formula: (= |v_#race~global~0_82| 0) InVars {} OutVars{t_funThread3of3ForFork0_#t~nondet7=|v_t_funThread3of3ForFork0_#t~nondet7_7|, #race~global~0=|v_#race~global~0_82|} AuxVars[] AssignedVars[t_funThread3of3ForFork0_#t~nondet7, #race~global~0][142], [40#L701-17true, Black: 206#true, t_funThread1of3ForFork0InUse, t_funThread2of3ForFork0InUse, t_funThread3of3ForFork0InUse, Black: 214#(= |t_funThread1of3ForFork0_#t~nondet6| |#race~global~0|), 131#L701-27true, 176#L701-18true, 218#true, Black: 203#(= |ULTIMATE.start_main_~i~0#1| 0), 150#L709-3true, 212#true]) [2023-08-29 02:54:07,972 INFO L383 tUnfolder$Statistics]: this new event has 53 ancestors and is cut-off event [2023-08-29 02:54:07,972 INFO L386 tUnfolder$Statistics]: existing Event has 53 ancestors and is cut-off event [2023-08-29 02:54:07,973 INFO L386 tUnfolder$Statistics]: existing Event has 53 ancestors and is cut-off event [2023-08-29 02:54:07,973 INFO L386 tUnfolder$Statistics]: existing Event has 53 ancestors and is cut-off event [2023-08-29 02:54:09,848 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1280] L701-20-->L701-22: Formula: (= |v_#race~global~0_78| |v_t_funThread1of3ForFork0_#t~nondet9_15|) InVars {} OutVars{t_funThread1of3ForFork0_#t~nondet9=|v_t_funThread1of3ForFork0_#t~nondet9_15|, #race~global~0=|v_#race~global~0_78|} AuxVars[] AssignedVars[t_funThread1of3ForFork0_#t~nondet9, #race~global~0][76], [Black: 208#(= |#race~global~0| 0), t_funThread1of3ForFork0InUse, t_funThread2of3ForFork0InUse, t_funThread3of3ForFork0InUse, Black: 214#(= |t_funThread1of3ForFork0_#t~nondet6| |#race~global~0|), 131#L701-27true, 168#L701-27true, 218#true, 82#L701-22true, Black: 203#(= |ULTIMATE.start_main_~i~0#1| 0), 150#L709-3true, 212#true]) [2023-08-29 02:54:09,849 INFO L383 tUnfolder$Statistics]: this new event has 54 ancestors and is cut-off event [2023-08-29 02:54:09,849 INFO L386 tUnfolder$Statistics]: existing Event has 54 ancestors and is cut-off event [2023-08-29 02:54:09,849 INFO L386 tUnfolder$Statistics]: existing Event has 54 ancestors and is cut-off event [2023-08-29 02:54:09,849 INFO L386 tUnfolder$Statistics]: existing Event has 54 ancestors and is cut-off event [2023-08-29 02:54:12,192 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1281] L701-15-->L701-17: Formula: (= |v_#race~global~0_80| 0) InVars {} OutVars{t_funThread2of3ForFork0_#t~nondet7=|v_t_funThread2of3ForFork0_#t~nondet7_7|, #race~global~0=|v_#race~global~0_80|} AuxVars[] AssignedVars[t_funThread2of3ForFork0_#t~nondet7, #race~global~0][100], [Black: 206#true, t_funThread1of3ForFork0InUse, 185#L701-17true, 83#t_funErr1ASSERT_VIOLATIONDATA_RACEtrue, 90#L701-25true, t_funThread2of3ForFork0InUse, t_funThread3of3ForFork0InUse, Black: 214#(= |t_funThread1of3ForFork0_#t~nondet6| |#race~global~0|), 218#true, Black: 203#(= |ULTIMATE.start_main_~i~0#1| 0), 212#true, 150#L709-3true]) [2023-08-29 02:54:12,193 INFO L383 tUnfolder$Statistics]: this new event has 56 ancestors and is cut-off event [2023-08-29 02:54:12,193 INFO L386 tUnfolder$Statistics]: existing Event has 56 ancestors and is cut-off event [2023-08-29 02:54:12,193 INFO L386 tUnfolder$Statistics]: existing Event has 56 ancestors and is cut-off event [2023-08-29 02:54:12,193 INFO L386 tUnfolder$Statistics]: existing Event has 56 ancestors and is cut-off event [2023-08-29 02:54:13,014 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1282] L701-15-->L701-17: Formula: (= |v_#race~global~0_82| 0) InVars {} OutVars{t_funThread3of3ForFork0_#t~nondet7=|v_t_funThread3of3ForFork0_#t~nondet7_7|, #race~global~0=|v_#race~global~0_82|} AuxVars[] AssignedVars[t_funThread3of3ForFork0_#t~nondet7, #race~global~0][104], [40#L701-17true, 177#L701-28true, t_funThread1of3ForFork0InUse, Black: 206#true, 83#t_funErr1ASSERT_VIOLATIONDATA_RACEtrue, t_funThread2of3ForFork0InUse, t_funThread3of3ForFork0InUse, 137#ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACEtrue, Black: 214#(= |t_funThread1of3ForFork0_#t~nondet6| |#race~global~0|), 218#true, Black: 203#(= |ULTIMATE.start_main_~i~0#1| 0), 212#true]) [2023-08-29 02:54:13,014 INFO L383 tUnfolder$Statistics]: this new event has 57 ancestors and is cut-off event [2023-08-29 02:54:13,015 INFO L386 tUnfolder$Statistics]: existing Event has 57 ancestors and is cut-off event [2023-08-29 02:54:13,015 INFO L386 tUnfolder$Statistics]: existing Event has 57 ancestors and is cut-off event [2023-08-29 02:54:13,015 INFO L386 tUnfolder$Statistics]: existing Event has 57 ancestors and is cut-off event [2023-08-29 02:54:13,911 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1281] L701-15-->L701-17: Formula: (= |v_#race~global~0_80| 0) InVars {} OutVars{t_funThread2of3ForFork0_#t~nondet7=|v_t_funThread2of3ForFork0_#t~nondet7_7|, #race~global~0=|v_#race~global~0_80|} AuxVars[] AssignedVars[t_funThread2of3ForFork0_#t~nondet7, #race~global~0][100], [t_funThread1of3ForFork0InUse, Black: 206#true, 83#t_funErr1ASSERT_VIOLATIONDATA_RACEtrue, 185#L701-17true, t_funThread2of3ForFork0InUse, t_funThread3of3ForFork0InUse, Black: 214#(= |t_funThread1of3ForFork0_#t~nondet6| |#race~global~0|), 102#L701-28true, 218#true, Black: 203#(= |ULTIMATE.start_main_~i~0#1| 0), 212#true, 150#L709-3true]) [2023-08-29 02:54:13,912 INFO L383 tUnfolder$Statistics]: this new event has 57 ancestors and is not cut-off event [2023-08-29 02:54:13,912 INFO L386 tUnfolder$Statistics]: existing Event has 57 ancestors and is not cut-off event [2023-08-29 02:54:13,912 INFO L386 tUnfolder$Statistics]: existing Event has 57 ancestors and is not cut-off event [2023-08-29 02:54:13,912 INFO L386 tUnfolder$Statistics]: existing Event has 57 ancestors and is not cut-off event [2023-08-29 02:54:13,912 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1281] L701-15-->L701-17: Formula: (= |v_#race~global~0_80| 0) InVars {} OutVars{t_funThread2of3ForFork0_#t~nondet7=|v_t_funThread2of3ForFork0_#t~nondet7_7|, #race~global~0=|v_#race~global~0_80|} AuxVars[] AssignedVars[t_funThread2of3ForFork0_#t~nondet7, #race~global~0][100], [Black: 206#true, t_funThread1of3ForFork0InUse, 185#L701-17true, 83#t_funErr1ASSERT_VIOLATIONDATA_RACEtrue, t_funThread2of3ForFork0InUse, 85#t_funEXITtrue, t_funThread3of3ForFork0InUse, Black: 214#(= |t_funThread1of3ForFork0_#t~nondet6| |#race~global~0|), 218#true, Black: 203#(= |ULTIMATE.start_main_~i~0#1| 0), 212#true, 150#L709-3true]) [2023-08-29 02:54:13,912 INFO L383 tUnfolder$Statistics]: this new event has 58 ancestors and is cut-off event [2023-08-29 02:54:13,912 INFO L386 tUnfolder$Statistics]: existing Event has 58 ancestors and is cut-off event [2023-08-29 02:54:13,912 INFO L386 tUnfolder$Statistics]: existing Event has 58 ancestors and is cut-off event [2023-08-29 02:54:13,912 INFO L386 tUnfolder$Statistics]: existing Event has 58 ancestors and is cut-off event [2023-08-29 02:54:14,009 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1282] L701-15-->L701-17: Formula: (= |v_#race~global~0_82| 0) InVars {} OutVars{t_funThread3of3ForFork0_#t~nondet7=|v_t_funThread3of3ForFork0_#t~nondet7_7|, #race~global~0=|v_#race~global~0_82|} AuxVars[] AssignedVars[t_funThread3of3ForFork0_#t~nondet7, #race~global~0][104], [40#L701-17true, Black: 206#true, t_funThread1of3ForFork0InUse, 83#t_funErr1ASSERT_VIOLATIONDATA_RACEtrue, t_funThread2of3ForFork0InUse, t_funThread3of3ForFork0InUse, Black: 214#(= |t_funThread1of3ForFork0_#t~nondet6| |#race~global~0|), 137#ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACEtrue, 58#t_funEXITtrue, 218#true, Black: 203#(= |ULTIMATE.start_main_~i~0#1| 0), 212#true]) [2023-08-29 02:54:14,009 INFO L383 tUnfolder$Statistics]: this new event has 58 ancestors and is cut-off event [2023-08-29 02:54:14,009 INFO L386 tUnfolder$Statistics]: existing Event has 58 ancestors and is cut-off event [2023-08-29 02:54:14,009 INFO L386 tUnfolder$Statistics]: existing Event has 58 ancestors and is cut-off event [2023-08-29 02:54:14,009 INFO L386 tUnfolder$Statistics]: existing Event has 58 ancestors and is cut-off event [2023-08-29 02:54:20,330 INFO L130 PetriNetUnfolder]: 283513/445498 cut-off events. [2023-08-29 02:54:20,330 INFO L131 PetriNetUnfolder]: For 355078/375702 co-relation queries the response was YES. [2023-08-29 02:54:21,904 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1134780 conditions, 445498 events. 283513/445498 cut-off events. For 355078/375702 co-relation queries the response was YES. Maximal size of possible extension queue 9658. Compared 4345747 event pairs, 163206 based on Foata normal form. 838/380264 useless extension candidates. Maximal degree in co-relation 328346. Up to 336639 conditions per place. [2023-08-29 02:54:23,724 INFO L137 encePairwiseOnDemand]: 333/346 looper letters, 118 selfloop transitions, 34 changer transitions 0/199 dead transitions. [2023-08-29 02:54:23,724 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 199 transitions, 1153 flow [2023-08-29 02:54:23,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 02:54:23,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 02:54:23,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 611 transitions. [2023-08-29 02:54:23,726 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5886319845857418 [2023-08-29 02:54:23,726 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 611 transitions. [2023-08-29 02:54:23,726 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 611 transitions. [2023-08-29 02:54:23,727 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:54:23,727 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 611 transitions. [2023-08-29 02:54:23,728 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 203.66666666666666) internal successors, (611), 3 states have internal predecessors, (611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:54:23,730 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 346.0) internal successors, (1384), 4 states have internal predecessors, (1384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:54:23,730 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 346.0) internal successors, (1384), 4 states have internal predecessors, (1384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:54:23,730 INFO L175 Difference]: Start difference. First operand has 106 places, 136 transitions, 570 flow. Second operand 3 states and 611 transitions. [2023-08-29 02:54:23,730 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 199 transitions, 1153 flow [2023-08-29 02:54:33,240 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 199 transitions, 1081 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 02:54:33,242 INFO L231 Difference]: Finished difference. Result has 108 places, 166 transitions, 884 flow [2023-08-29 02:54:33,243 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=346, PETRI_DIFFERENCE_MINUEND_FLOW=526, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=884, PETRI_PLACES=108, PETRI_TRANSITIONS=166} [2023-08-29 02:54:33,243 INFO L281 CegarLoopForPetriNet]: 99 programPoint places, 9 predicate places. [2023-08-29 02:54:33,243 INFO L495 AbstractCegarLoop]: Abstraction has has 108 places, 166 transitions, 884 flow [2023-08-29 02:54:33,243 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 174.0) internal successors, (522), 3 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:54:33,244 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:54:33,244 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:54:33,244 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-08-29 02:54:33,244 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [t_funErr2ASSERT_VIOLATIONDATA_RACE, t_funErr1ASSERT_VIOLATIONDATA_RACE, t_funErr2ASSERT_VIOLATIONDATA_RACE, t_funErr1ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2023-08-29 02:54:33,245 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:54:33,245 INFO L85 PathProgramCache]: Analyzing trace with hash 340549485, now seen corresponding path program 1 times [2023-08-29 02:54:33,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:54:33,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472920954] [2023-08-29 02:54:33,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:54:33,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:54:33,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:54:33,280 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:54:33,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:54:33,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472920954] [2023-08-29 02:54:33,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472920954] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-29 02:54:33,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1891382509] [2023-08-29 02:54:33,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:54:33,281 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 02:54:33,281 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 02:54:33,284 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-29 02:54:33,285 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-08-29 02:54:33,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:54:33,359 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 3 conjunts are in the unsatisfiable core [2023-08-29 02:54:33,360 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 02:54:33,394 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:54:33,394 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-29 02:54:33,417 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:54:33,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1891382509] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-29 02:54:33,418 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-29 02:54:33,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2023-08-29 02:54:33,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714836315] [2023-08-29 02:54:33,418 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-29 02:54:33,418 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-29 02:54:33,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:54:33,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-29 02:54:33,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-08-29 02:54:33,438 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 183 out of 346 [2023-08-29 02:54:33,440 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 166 transitions, 884 flow. Second operand has 7 states, 7 states have (on average 186.0) internal successors, (1302), 7 states have internal predecessors, (1302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:54:33,440 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:54:33,440 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 183 of 346 [2023-08-29 02:54:33,440 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:54:34,353 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1281] L701-15-->L701-17: Formula: (= |v_#race~global~0_80| 0) InVars {} OutVars{t_funThread2of3ForFork0_#t~nondet7=|v_t_funThread2of3ForFork0_#t~nondet7_7|, #race~global~0=|v_#race~global~0_80|} AuxVars[] AssignedVars[t_funThread2of3ForFork0_#t~nondet7, #race~global~0][171], [t_funThread1of3ForFork0InUse, 33#L706-7true, t_funThread2of3ForFork0InUse, t_funThread3of3ForFork0InUse, 218#true, Black: 203#(= |ULTIMATE.start_main_~i~0#1| 0), 65#L701-4true, 310#(< |ULTIMATE.start_main_~i~0#1| 10000), Black: 206#true, 185#L701-17true, Black: 214#(= |t_funThread1of3ForFork0_#t~nondet6| |#race~global~0|), Black: 220#(= |#race~global~0| |t_funThread2of3ForFork0_#t~nondet6|), 23#L701-4true]) [2023-08-29 02:54:34,354 INFO L383 tUnfolder$Statistics]: this new event has 36 ancestors and is cut-off event [2023-08-29 02:54:34,354 INFO L386 tUnfolder$Statistics]: existing Event has 36 ancestors and is cut-off event [2023-08-29 02:54:34,354 INFO L386 tUnfolder$Statistics]: existing Event has 36 ancestors and is cut-off event [2023-08-29 02:54:34,354 INFO L386 tUnfolder$Statistics]: existing Event has 36 ancestors and is cut-off event [2023-08-29 02:54:34,474 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1263] L701-6-->L701-8: Formula: (= |v_#race~global~0_74| |v_t_funThread3of3ForFork0_#t~nondet6_15|) InVars {} OutVars{t_funThread3of3ForFork0_#t~nondet6=|v_t_funThread3of3ForFork0_#t~nondet6_15|, #race~global~0=|v_#race~global~0_74|} AuxVars[] AssignedVars[t_funThread3of3ForFork0_#t~nondet6, #race~global~0][97], [t_funThread1of3ForFork0InUse, 33#L706-7true, t_funThread2of3ForFork0InUse, t_funThread3of3ForFork0InUse, 131#L701-27true, 218#true, Black: 203#(= |ULTIMATE.start_main_~i~0#1| 0), 65#L701-4true, 310#(< |ULTIMATE.start_main_~i~0#1| 10000), Black: 208#(= |#race~global~0| 0), Black: 214#(= |t_funThread1of3ForFork0_#t~nondet6| |#race~global~0|), 45#L701-8true, Black: 220#(= |#race~global~0| |t_funThread2of3ForFork0_#t~nondet6|)]) [2023-08-29 02:54:34,474 INFO L383 tUnfolder$Statistics]: this new event has 37 ancestors and is cut-off event [2023-08-29 02:54:34,474 INFO L386 tUnfolder$Statistics]: existing Event has 37 ancestors and is cut-off event [2023-08-29 02:54:34,474 INFO L386 tUnfolder$Statistics]: existing Event has 37 ancestors and is cut-off event [2023-08-29 02:54:34,474 INFO L386 tUnfolder$Statistics]: existing Event has 37 ancestors and is cut-off event [2023-08-29 02:54:34,723 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1263] L701-6-->L701-8: Formula: (= |v_#race~global~0_74| |v_t_funThread3of3ForFork0_#t~nondet6_15|) InVars {} OutVars{t_funThread3of3ForFork0_#t~nondet6=|v_t_funThread3of3ForFork0_#t~nondet6_15|, #race~global~0=|v_#race~global~0_74|} AuxVars[] AssignedVars[t_funThread3of3ForFork0_#t~nondet6, #race~global~0][181], [t_funThread1of3ForFork0InUse, 83#t_funErr1ASSERT_VIOLATIONDATA_RACEtrue, 33#L706-7true, t_funThread2of3ForFork0InUse, t_funThread3of3ForFork0InUse, 218#true, Black: 203#(= |ULTIMATE.start_main_~i~0#1| 0), 310#(< |ULTIMATE.start_main_~i~0#1| 10000), Black: 208#(= |#race~global~0| 0), 74#L701-10true, Black: 214#(= |t_funThread1of3ForFork0_#t~nondet6| |#race~global~0|), 45#L701-8true, Black: 220#(= |#race~global~0| |t_funThread2of3ForFork0_#t~nondet6|)]) [2023-08-29 02:54:34,723 INFO L383 tUnfolder$Statistics]: this new event has 40 ancestors and is cut-off event [2023-08-29 02:54:34,723 INFO L386 tUnfolder$Statistics]: existing Event has 40 ancestors and is cut-off event [2023-08-29 02:54:34,723 INFO L386 tUnfolder$Statistics]: existing Event has 40 ancestors and is cut-off event [2023-08-29 02:54:34,723 INFO L386 tUnfolder$Statistics]: existing Event has 40 ancestors and is cut-off event [2023-08-29 02:54:34,727 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1287] L701-6-->L701-8: Formula: (= |v_#race~global~0_84| |v_t_funThread2of3ForFork0_#t~nondet6_15|) InVars {} OutVars{t_funThread2of3ForFork0_#t~nondet6=|v_t_funThread2of3ForFork0_#t~nondet6_15|, #race~global~0=|v_#race~global~0_84|} AuxVars[] AssignedVars[t_funThread2of3ForFork0_#t~nondet6, #race~global~0][67], [220#(= |#race~global~0| |t_funThread2of3ForFork0_#t~nondet6|), t_funThread1of3ForFork0InUse, 33#L706-7true, 83#t_funErr1ASSERT_VIOLATIONDATA_RACEtrue, t_funThread2of3ForFork0InUse, t_funThread3of3ForFork0InUse, 152#L701-8true, Black: 203#(= |ULTIMATE.start_main_~i~0#1| 0), 310#(< |ULTIMATE.start_main_~i~0#1| 10000), Black: 208#(= |#race~global~0| 0), Black: 214#(= |t_funThread1of3ForFork0_#t~nondet6| |#race~global~0|), 45#L701-8true, Black: 218#true]) [2023-08-29 02:54:34,727 INFO L383 tUnfolder$Statistics]: this new event has 39 ancestors and is cut-off event [2023-08-29 02:54:34,727 INFO L386 tUnfolder$Statistics]: existing Event has 39 ancestors and is cut-off event [2023-08-29 02:54:34,727 INFO L386 tUnfolder$Statistics]: existing Event has 39 ancestors and is cut-off event [2023-08-29 02:54:34,727 INFO L386 tUnfolder$Statistics]: existing Event has 39 ancestors and is cut-off event [2023-08-29 02:54:34,759 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1263] L701-6-->L701-8: Formula: (= |v_#race~global~0_74| |v_t_funThread3of3ForFork0_#t~nondet6_15|) InVars {} OutVars{t_funThread3of3ForFork0_#t~nondet6=|v_t_funThread3of3ForFork0_#t~nondet6_15|, #race~global~0=|v_#race~global~0_74|} AuxVars[] AssignedVars[t_funThread3of3ForFork0_#t~nondet6, #race~global~0][178], [t_funThread1of3ForFork0InUse, 33#L706-7true, t_funThread2of3ForFork0InUse, t_funThread3of3ForFork0InUse, 134#L701-10true, 218#true, Black: 203#(= |ULTIMATE.start_main_~i~0#1| 0), 310#(< |ULTIMATE.start_main_~i~0#1| 10000), Black: 208#(= |#race~global~0| 0), Black: 214#(= |t_funThread1of3ForFork0_#t~nondet6| |#race~global~0|), 31#t_funErr1ASSERT_VIOLATIONDATA_RACEtrue, 45#L701-8true, Black: 220#(= |#race~global~0| |t_funThread2of3ForFork0_#t~nondet6|)]) [2023-08-29 02:54:34,759 INFO L383 tUnfolder$Statistics]: this new event has 40 ancestors and is cut-off event [2023-08-29 02:54:34,759 INFO L386 tUnfolder$Statistics]: existing Event has 40 ancestors and is cut-off event [2023-08-29 02:54:34,759 INFO L386 tUnfolder$Statistics]: existing Event has 40 ancestors and is cut-off event [2023-08-29 02:54:34,759 INFO L386 tUnfolder$Statistics]: existing Event has 40 ancestors and is cut-off event [2023-08-29 02:54:34,827 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1235] L701-15-->L701-17: Formula: (= |v_#race~global~0_70| 0) InVars {} OutVars{t_funThread1of3ForFork0_#t~nondet7=|v_t_funThread1of3ForFork0_#t~nondet7_7|, #race~global~0=|v_#race~global~0_70|} AuxVars[] AssignedVars[t_funThread1of3ForFork0_#t~nondet7, #race~global~0][186], [t_funThread1of3ForFork0InUse, 33#L706-7true, t_funThread2of3ForFork0InUse, t_funThread3of3ForFork0InUse, 218#true, Black: 203#(= |ULTIMATE.start_main_~i~0#1| 0), 171#L701-17true, 310#(< |ULTIMATE.start_main_~i~0#1| 10000), Black: 206#true, Black: 214#(= |t_funThread1of3ForFork0_#t~nondet6| |#race~global~0|), 31#t_funErr1ASSERT_VIOLATIONDATA_RACEtrue, Black: 220#(= |#race~global~0| |t_funThread2of3ForFork0_#t~nondet6|), 23#L701-4true]) [2023-08-29 02:54:34,827 INFO L383 tUnfolder$Statistics]: this new event has 40 ancestors and is cut-off event [2023-08-29 02:54:34,827 INFO L386 tUnfolder$Statistics]: existing Event has 40 ancestors and is cut-off event [2023-08-29 02:54:34,828 INFO L386 tUnfolder$Statistics]: existing Event has 40 ancestors and is cut-off event [2023-08-29 02:54:34,828 INFO L386 tUnfolder$Statistics]: existing Event has 40 ancestors and is cut-off event [2023-08-29 02:54:34,832 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1287] L701-6-->L701-8: Formula: (= |v_#race~global~0_84| |v_t_funThread2of3ForFork0_#t~nondet6_15|) InVars {} OutVars{t_funThread2of3ForFork0_#t~nondet6=|v_t_funThread2of3ForFork0_#t~nondet6_15|, #race~global~0=|v_#race~global~0_84|} AuxVars[] AssignedVars[t_funThread2of3ForFork0_#t~nondet6, #race~global~0][67], [220#(= |#race~global~0| |t_funThread2of3ForFork0_#t~nondet6|), t_funThread1of3ForFork0InUse, 33#L706-7true, 83#t_funErr1ASSERT_VIOLATIONDATA_RACEtrue, t_funThread2of3ForFork0InUse, t_funThread3of3ForFork0InUse, 152#L701-8true, Black: 203#(= |ULTIMATE.start_main_~i~0#1| 0), 310#(< |ULTIMATE.start_main_~i~0#1| 10000), Black: 208#(= |#race~global~0| 0), 124#L701-10true, Black: 214#(= |t_funThread1of3ForFork0_#t~nondet6| |#race~global~0|), Black: 218#true]) [2023-08-29 02:54:34,832 INFO L383 tUnfolder$Statistics]: this new event has 40 ancestors and is cut-off event [2023-08-29 02:54:34,832 INFO L386 tUnfolder$Statistics]: existing Event has 40 ancestors and is cut-off event [2023-08-29 02:54:34,832 INFO L386 tUnfolder$Statistics]: existing Event has 40 ancestors and is cut-off event [2023-08-29 02:54:34,832 INFO L386 tUnfolder$Statistics]: existing Event has 40 ancestors and is cut-off event [2023-08-29 02:54:34,834 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1282] L701-15-->L701-17: Formula: (= |v_#race~global~0_82| 0) InVars {} OutVars{t_funThread3of3ForFork0_#t~nondet7=|v_t_funThread3of3ForFork0_#t~nondet7_7|, #race~global~0=|v_#race~global~0_82|} AuxVars[] AssignedVars[t_funThread3of3ForFork0_#t~nondet7, #race~global~0][189], [t_funThread1of3ForFork0InUse, 83#t_funErr1ASSERT_VIOLATIONDATA_RACEtrue, 33#L706-7true, t_funThread2of3ForFork0InUse, t_funThread3of3ForFork0InUse, 218#true, Black: 203#(= |ULTIMATE.start_main_~i~0#1| 0), 182#L701-4true, 40#L701-17true, 310#(< |ULTIMATE.start_main_~i~0#1| 10000), Black: 206#true, Black: 214#(= |t_funThread1of3ForFork0_#t~nondet6| |#race~global~0|), Black: 220#(= |#race~global~0| |t_funThread2of3ForFork0_#t~nondet6|)]) [2023-08-29 02:54:34,834 INFO L383 tUnfolder$Statistics]: this new event has 40 ancestors and is cut-off event [2023-08-29 02:54:34,834 INFO L386 tUnfolder$Statistics]: existing Event has 40 ancestors and is cut-off event [2023-08-29 02:54:34,834 INFO L386 tUnfolder$Statistics]: existing Event has 40 ancestors and is cut-off event [2023-08-29 02:54:34,834 INFO L386 tUnfolder$Statistics]: existing Event has 40 ancestors and is cut-off event [2023-08-29 02:54:34,854 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1281] L701-15-->L701-17: Formula: (= |v_#race~global~0_80| 0) InVars {} OutVars{t_funThread2of3ForFork0_#t~nondet7=|v_t_funThread2of3ForFork0_#t~nondet7_7|, #race~global~0=|v_#race~global~0_80|} AuxVars[] AssignedVars[t_funThread2of3ForFork0_#t~nondet7, #race~global~0][171], [t_funThread1of3ForFork0InUse, 33#L706-7true, 83#t_funErr1ASSERT_VIOLATIONDATA_RACEtrue, t_funThread2of3ForFork0InUse, t_funThread3of3ForFork0InUse, 218#true, Black: 203#(= |ULTIMATE.start_main_~i~0#1| 0), 310#(< |ULTIMATE.start_main_~i~0#1| 10000), Black: 206#true, 185#L701-17true, Black: 214#(= |t_funThread1of3ForFork0_#t~nondet6| |#race~global~0|), Black: 220#(= |#race~global~0| |t_funThread2of3ForFork0_#t~nondet6|), 23#L701-4true]) [2023-08-29 02:54:34,854 INFO L383 tUnfolder$Statistics]: this new event has 40 ancestors and is cut-off event [2023-08-29 02:54:34,854 INFO L386 tUnfolder$Statistics]: existing Event has 40 ancestors and is cut-off event [2023-08-29 02:54:34,854 INFO L386 tUnfolder$Statistics]: existing Event has 40 ancestors and is cut-off event [2023-08-29 02:54:34,854 INFO L386 tUnfolder$Statistics]: existing Event has 40 ancestors and is cut-off event [2023-08-29 02:54:34,980 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1287] L701-6-->L701-8: Formula: (= |v_#race~global~0_84| |v_t_funThread2of3ForFork0_#t~nondet6_15|) InVars {} OutVars{t_funThread2of3ForFork0_#t~nondet6=|v_t_funThread2of3ForFork0_#t~nondet6_15|, #race~global~0=|v_#race~global~0_84|} AuxVars[] AssignedVars[t_funThread2of3ForFork0_#t~nondet6, #race~global~0][67], [220#(= |#race~global~0| |t_funThread2of3ForFork0_#t~nondet6|), t_funThread1of3ForFork0InUse, 83#t_funErr1ASSERT_VIOLATIONDATA_RACEtrue, 33#L706-7true, t_funThread2of3ForFork0InUse, t_funThread3of3ForFork0InUse, 152#L701-8true, Black: 203#(= |ULTIMATE.start_main_~i~0#1| 0), 310#(< |ULTIMATE.start_main_~i~0#1| 10000), Black: 208#(= |#race~global~0| 0), Black: 214#(= |t_funThread1of3ForFork0_#t~nondet6| |#race~global~0|), 168#L701-27true, Black: 218#true]) [2023-08-29 02:54:34,981 INFO L383 tUnfolder$Statistics]: this new event has 41 ancestors and is cut-off event [2023-08-29 02:54:34,981 INFO L386 tUnfolder$Statistics]: existing Event has 41 ancestors and is cut-off event [2023-08-29 02:54:34,981 INFO L386 tUnfolder$Statistics]: existing Event has 41 ancestors and is cut-off event [2023-08-29 02:54:34,981 INFO L386 tUnfolder$Statistics]: existing Event has 41 ancestors and is cut-off event [2023-08-29 02:54:35,026 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1263] L701-6-->L701-8: Formula: (= |v_#race~global~0_74| |v_t_funThread3of3ForFork0_#t~nondet6_15|) InVars {} OutVars{t_funThread3of3ForFork0_#t~nondet6=|v_t_funThread3of3ForFork0_#t~nondet6_15|, #race~global~0=|v_#race~global~0_74|} AuxVars[] AssignedVars[t_funThread3of3ForFork0_#t~nondet6, #race~global~0][97], [t_funThread1of3ForFork0InUse, 83#t_funErr1ASSERT_VIOLATIONDATA_RACEtrue, 33#L706-7true, t_funThread2of3ForFork0InUse, t_funThread3of3ForFork0InUse, 131#L701-27true, 218#true, Black: 203#(= |ULTIMATE.start_main_~i~0#1| 0), 310#(< |ULTIMATE.start_main_~i~0#1| 10000), Black: 208#(= |#race~global~0| 0), Black: 214#(= |t_funThread1of3ForFork0_#t~nondet6| |#race~global~0|), 45#L701-8true, Black: 220#(= |#race~global~0| |t_funThread2of3ForFork0_#t~nondet6|)]) [2023-08-29 02:54:35,027 INFO L383 tUnfolder$Statistics]: this new event has 41 ancestors and is cut-off event [2023-08-29 02:54:35,027 INFO L386 tUnfolder$Statistics]: existing Event has 41 ancestors and is cut-off event [2023-08-29 02:54:35,027 INFO L386 tUnfolder$Statistics]: existing Event has 41 ancestors and is cut-off event [2023-08-29 02:54:35,027 INFO L386 tUnfolder$Statistics]: existing Event has 41 ancestors and is cut-off event [2023-08-29 02:54:35,038 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1263] L701-6-->L701-8: Formula: (= |v_#race~global~0_74| |v_t_funThread3of3ForFork0_#t~nondet6_15|) InVars {} OutVars{t_funThread3of3ForFork0_#t~nondet6=|v_t_funThread3of3ForFork0_#t~nondet6_15|, #race~global~0=|v_#race~global~0_74|} AuxVars[] AssignedVars[t_funThread3of3ForFork0_#t~nondet6, #race~global~0][97], [139#L701-27true, t_funThread1of3ForFork0InUse, 33#L706-7true, t_funThread2of3ForFork0InUse, t_funThread3of3ForFork0InUse, 218#true, Black: 203#(= |ULTIMATE.start_main_~i~0#1| 0), 310#(< |ULTIMATE.start_main_~i~0#1| 10000), Black: 208#(= |#race~global~0| 0), Black: 214#(= |t_funThread1of3ForFork0_#t~nondet6| |#race~global~0|), 31#t_funErr1ASSERT_VIOLATIONDATA_RACEtrue, 45#L701-8true, Black: 220#(= |#race~global~0| |t_funThread2of3ForFork0_#t~nondet6|)]) [2023-08-29 02:54:35,038 INFO L383 tUnfolder$Statistics]: this new event has 41 ancestors and is cut-off event [2023-08-29 02:54:35,038 INFO L386 tUnfolder$Statistics]: existing Event has 41 ancestors and is cut-off event [2023-08-29 02:54:35,038 INFO L386 tUnfolder$Statistics]: existing Event has 41 ancestors and is cut-off event [2023-08-29 02:54:35,038 INFO L386 tUnfolder$Statistics]: existing Event has 41 ancestors and is cut-off event [2023-08-29 02:54:35,238 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1280] L701-20-->L701-22: Formula: (= |v_#race~global~0_78| |v_t_funThread1of3ForFork0_#t~nondet9_15|) InVars {} OutVars{t_funThread1of3ForFork0_#t~nondet9=|v_t_funThread1of3ForFork0_#t~nondet9_15|, #race~global~0=|v_#race~global~0_78|} AuxVars[] AssignedVars[t_funThread1of3ForFork0_#t~nondet9, #race~global~0][157], [t_funThread1of3ForFork0InUse, t_funThread2of3ForFork0InUse, t_funThread3of3ForFork0InUse, 107#L706-13true, 218#true, Black: 203#(= |ULTIMATE.start_main_~i~0#1| 0), 182#L701-4true, 310#(< |ULTIMATE.start_main_~i~0#1| 10000), Black: 208#(= |#race~global~0| 0), 124#L701-10true, Black: 214#(= |t_funThread1of3ForFork0_#t~nondet6| |#race~global~0|), 82#L701-22true, Black: 220#(= |#race~global~0| |t_funThread2of3ForFork0_#t~nondet6|)]) [2023-08-29 02:54:35,238 INFO L383 tUnfolder$Statistics]: this new event has 43 ancestors and is cut-off event [2023-08-29 02:54:35,238 INFO L386 tUnfolder$Statistics]: existing Event has 43 ancestors and is cut-off event [2023-08-29 02:54:35,238 INFO L386 tUnfolder$Statistics]: existing Event has 43 ancestors and is cut-off event [2023-08-29 02:54:35,238 INFO L386 tUnfolder$Statistics]: existing Event has 43 ancestors and is cut-off event [2023-08-29 02:54:35,326 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1287] L701-6-->L701-8: Formula: (= |v_#race~global~0_84| |v_t_funThread2of3ForFork0_#t~nondet6_15|) InVars {} OutVars{t_funThread2of3ForFork0_#t~nondet6=|v_t_funThread2of3ForFork0_#t~nondet6_15|, #race~global~0=|v_#race~global~0_84|} AuxVars[] AssignedVars[t_funThread2of3ForFork0_#t~nondet6, #race~global~0][67], [220#(= |#race~global~0| |t_funThread2of3ForFork0_#t~nondet6|), t_funThread1of3ForFork0InUse, t_funThread2of3ForFork0InUse, t_funThread3of3ForFork0InUse, 107#L706-13true, 152#L701-8true, Black: 203#(= |ULTIMATE.start_main_~i~0#1| 0), 310#(< |ULTIMATE.start_main_~i~0#1| 10000), Black: 208#(= |#race~global~0| 0), 124#L701-10true, Black: 214#(= |t_funThread1of3ForFork0_#t~nondet6| |#race~global~0|), 176#L701-18true, Black: 218#true]) [2023-08-29 02:54:35,326 INFO L383 tUnfolder$Statistics]: this new event has 43 ancestors and is cut-off event [2023-08-29 02:54:35,326 INFO L386 tUnfolder$Statistics]: existing Event has 43 ancestors and is cut-off event [2023-08-29 02:54:35,326 INFO L386 tUnfolder$Statistics]: existing Event has 43 ancestors and is cut-off event [2023-08-29 02:54:35,326 INFO L386 tUnfolder$Statistics]: existing Event has 43 ancestors and is cut-off event [2023-08-29 02:54:35,368 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1287] L701-6-->L701-8: Formula: (= |v_#race~global~0_84| |v_t_funThread2of3ForFork0_#t~nondet6_15|) InVars {} OutVars{t_funThread2of3ForFork0_#t~nondet6=|v_t_funThread2of3ForFork0_#t~nondet6_15|, #race~global~0=|v_#race~global~0_84|} AuxVars[] AssignedVars[t_funThread2of3ForFork0_#t~nondet6, #race~global~0][67], [220#(= |#race~global~0| |t_funThread2of3ForFork0_#t~nondet6|), t_funThread1of3ForFork0InUse, t_funThread2of3ForFork0InUse, t_funThread3of3ForFork0InUse, 107#L706-13true, 152#L701-8true, Black: 203#(= |ULTIMATE.start_main_~i~0#1| 0), 310#(< |ULTIMATE.start_main_~i~0#1| 10000), Black: 208#(= |#race~global~0| 0), Black: 214#(= |t_funThread1of3ForFork0_#t~nondet6| |#race~global~0|), 168#L701-27true, 176#L701-18true, Black: 218#true]) [2023-08-29 02:54:35,368 INFO L383 tUnfolder$Statistics]: this new event has 44 ancestors and is cut-off event [2023-08-29 02:54:35,368 INFO L386 tUnfolder$Statistics]: existing Event has 44 ancestors and is cut-off event [2023-08-29 02:54:35,368 INFO L386 tUnfolder$Statistics]: existing Event has 44 ancestors and is cut-off event [2023-08-29 02:54:35,368 INFO L386 tUnfolder$Statistics]: existing Event has 44 ancestors and is cut-off event [2023-08-29 02:54:35,386 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1280] L701-20-->L701-22: Formula: (= |v_#race~global~0_78| |v_t_funThread1of3ForFork0_#t~nondet9_15|) InVars {} OutVars{t_funThread1of3ForFork0_#t~nondet9=|v_t_funThread1of3ForFork0_#t~nondet9_15|, #race~global~0=|v_#race~global~0_78|} AuxVars[] AssignedVars[t_funThread1of3ForFork0_#t~nondet9, #race~global~0][157], [t_funThread1of3ForFork0InUse, t_funThread2of3ForFork0InUse, t_funThread3of3ForFork0InUse, 107#L706-13true, 218#true, Black: 203#(= |ULTIMATE.start_main_~i~0#1| 0), 310#(< |ULTIMATE.start_main_~i~0#1| 10000), 182#L701-4true, Black: 208#(= |#race~global~0| 0), Black: 214#(= |t_funThread1of3ForFork0_#t~nondet6| |#race~global~0|), 168#L701-27true, 82#L701-22true, Black: 220#(= |#race~global~0| |t_funThread2of3ForFork0_#t~nondet6|)]) [2023-08-29 02:54:35,386 INFO L383 tUnfolder$Statistics]: this new event has 44 ancestors and is cut-off event [2023-08-29 02:54:35,386 INFO L386 tUnfolder$Statistics]: existing Event has 44 ancestors and is cut-off event [2023-08-29 02:54:35,386 INFO L386 tUnfolder$Statistics]: existing Event has 44 ancestors and is cut-off event [2023-08-29 02:54:35,386 INFO L386 tUnfolder$Statistics]: existing Event has 44 ancestors and is cut-off event [2023-08-29 02:54:35,470 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1280] L701-20-->L701-22: Formula: (= |v_#race~global~0_78| |v_t_funThread1of3ForFork0_#t~nondet9_15|) InVars {} OutVars{t_funThread1of3ForFork0_#t~nondet9=|v_t_funThread1of3ForFork0_#t~nondet9_15|, #race~global~0=|v_#race~global~0_78|} AuxVars[] AssignedVars[t_funThread1of3ForFork0_#t~nondet9, #race~global~0][157], [t_funThread1of3ForFork0InUse, 33#L706-7true, t_funThread2of3ForFork0InUse, t_funThread3of3ForFork0InUse, 218#true, Black: 203#(= |ULTIMATE.start_main_~i~0#1| 0), 310#(< |ULTIMATE.start_main_~i~0#1| 10000), 182#L701-4true, Black: 208#(= |#race~global~0| 0), 124#L701-10true, Black: 214#(= |t_funThread1of3ForFork0_#t~nondet6| |#race~global~0|), 82#L701-22true, Black: 220#(= |#race~global~0| |t_funThread2of3ForFork0_#t~nondet6|)]) [2023-08-29 02:54:35,470 INFO L383 tUnfolder$Statistics]: this new event has 44 ancestors and is cut-off event [2023-08-29 02:54:35,470 INFO L386 tUnfolder$Statistics]: existing Event has 44 ancestors and is cut-off event [2023-08-29 02:54:35,470 INFO L386 tUnfolder$Statistics]: existing Event has 44 ancestors and is cut-off event [2023-08-29 02:54:35,470 INFO L386 tUnfolder$Statistics]: existing Event has 44 ancestors and is cut-off event [2023-08-29 02:54:35,473 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1282] L701-15-->L701-17: Formula: (= |v_#race~global~0_82| 0) InVars {} OutVars{t_funThread3of3ForFork0_#t~nondet7=|v_t_funThread3of3ForFork0_#t~nondet7_7|, #race~global~0=|v_#race~global~0_82|} AuxVars[] AssignedVars[t_funThread3of3ForFork0_#t~nondet7, #race~global~0][189], [t_funThread1of3ForFork0InUse, t_funThread2of3ForFork0InUse, t_funThread3of3ForFork0InUse, 107#L706-13true, 218#true, Black: 203#(= |ULTIMATE.start_main_~i~0#1| 0), 182#L701-4true, 40#L701-17true, 310#(< |ULTIMATE.start_main_~i~0#1| 10000), Black: 206#true, Black: 214#(= |t_funThread1of3ForFork0_#t~nondet6| |#race~global~0|), 176#L701-18true, Black: 220#(= |#race~global~0| |t_funThread2of3ForFork0_#t~nondet6|)]) [2023-08-29 02:54:35,473 INFO L383 tUnfolder$Statistics]: this new event has 43 ancestors and is not cut-off event [2023-08-29 02:54:35,473 INFO L386 tUnfolder$Statistics]: existing Event has 43 ancestors and is not cut-off event [2023-08-29 02:54:35,473 INFO L386 tUnfolder$Statistics]: existing Event has 43 ancestors and is not cut-off event [2023-08-29 02:54:35,473 INFO L386 tUnfolder$Statistics]: existing Event has 43 ancestors and is not cut-off event [2023-08-29 02:54:35,510 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1287] L701-6-->L701-8: Formula: (= |v_#race~global~0_84| |v_t_funThread2of3ForFork0_#t~nondet6_15|) InVars {} OutVars{t_funThread2of3ForFork0_#t~nondet6=|v_t_funThread2of3ForFork0_#t~nondet6_15|, #race~global~0=|v_#race~global~0_84|} AuxVars[] AssignedVars[t_funThread2of3ForFork0_#t~nondet6, #race~global~0][67], [220#(= |#race~global~0| |t_funThread2of3ForFork0_#t~nondet6|), t_funThread1of3ForFork0InUse, 33#L706-7true, t_funThread2of3ForFork0InUse, t_funThread3of3ForFork0InUse, 152#L701-8true, Black: 203#(= |ULTIMATE.start_main_~i~0#1| 0), 310#(< |ULTIMATE.start_main_~i~0#1| 10000), Black: 208#(= |#race~global~0| 0), 124#L701-10true, Black: 214#(= |t_funThread1of3ForFork0_#t~nondet6| |#race~global~0|), 176#L701-18true, Black: 218#true]) [2023-08-29 02:54:35,510 INFO L383 tUnfolder$Statistics]: this new event has 44 ancestors and is cut-off event [2023-08-29 02:54:35,510 INFO L386 tUnfolder$Statistics]: existing Event has 44 ancestors and is cut-off event [2023-08-29 02:54:35,510 INFO L386 tUnfolder$Statistics]: existing Event has 44 ancestors and is cut-off event [2023-08-29 02:54:35,510 INFO L386 tUnfolder$Statistics]: existing Event has 44 ancestors and is cut-off event [2023-08-29 02:54:35,612 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1287] L701-6-->L701-8: Formula: (= |v_#race~global~0_84| |v_t_funThread2of3ForFork0_#t~nondet6_15|) InVars {} OutVars{t_funThread2of3ForFork0_#t~nondet6=|v_t_funThread2of3ForFork0_#t~nondet6_15|, #race~global~0=|v_#race~global~0_84|} AuxVars[] AssignedVars[t_funThread2of3ForFork0_#t~nondet6, #race~global~0][67], [220#(= |#race~global~0| |t_funThread2of3ForFork0_#t~nondet6|), t_funThread1of3ForFork0InUse, 33#L706-7true, t_funThread2of3ForFork0InUse, t_funThread3of3ForFork0InUse, 152#L701-8true, Black: 203#(= |ULTIMATE.start_main_~i~0#1| 0), 310#(< |ULTIMATE.start_main_~i~0#1| 10000), Black: 208#(= |#race~global~0| 0), Black: 214#(= |t_funThread1of3ForFork0_#t~nondet6| |#race~global~0|), 168#L701-27true, 176#L701-18true, Black: 218#true]) [2023-08-29 02:54:35,612 INFO L383 tUnfolder$Statistics]: this new event has 45 ancestors and is cut-off event [2023-08-29 02:54:35,612 INFO L386 tUnfolder$Statistics]: existing Event has 45 ancestors and is cut-off event [2023-08-29 02:54:35,612 INFO L386 tUnfolder$Statistics]: existing Event has 45 ancestors and is cut-off event [2023-08-29 02:54:35,612 INFO L386 tUnfolder$Statistics]: existing Event has 45 ancestors and is cut-off event [2023-08-29 02:54:35,643 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1280] L701-20-->L701-22: Formula: (= |v_#race~global~0_78| |v_t_funThread1of3ForFork0_#t~nondet9_15|) InVars {} OutVars{t_funThread1of3ForFork0_#t~nondet9=|v_t_funThread1of3ForFork0_#t~nondet9_15|, #race~global~0=|v_#race~global~0_78|} AuxVars[] AssignedVars[t_funThread1of3ForFork0_#t~nondet9, #race~global~0][157], [t_funThread1of3ForFork0InUse, 33#L706-7true, t_funThread2of3ForFork0InUse, t_funThread3of3ForFork0InUse, 218#true, Black: 203#(= |ULTIMATE.start_main_~i~0#1| 0), 310#(< |ULTIMATE.start_main_~i~0#1| 10000), 182#L701-4true, Black: 208#(= |#race~global~0| 0), Black: 214#(= |t_funThread1of3ForFork0_#t~nondet6| |#race~global~0|), 168#L701-27true, 82#L701-22true, Black: 220#(= |#race~global~0| |t_funThread2of3ForFork0_#t~nondet6|)]) [2023-08-29 02:54:35,643 INFO L383 tUnfolder$Statistics]: this new event has 45 ancestors and is cut-off event [2023-08-29 02:54:35,643 INFO L386 tUnfolder$Statistics]: existing Event has 45 ancestors and is cut-off event [2023-08-29 02:54:35,643 INFO L386 tUnfolder$Statistics]: existing Event has 45 ancestors and is cut-off event [2023-08-29 02:54:35,643 INFO L386 tUnfolder$Statistics]: existing Event has 45 ancestors and is cut-off event [2023-08-29 02:54:35,644 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1282] L701-15-->L701-17: Formula: (= |v_#race~global~0_82| 0) InVars {} OutVars{t_funThread3of3ForFork0_#t~nondet7=|v_t_funThread3of3ForFork0_#t~nondet7_7|, #race~global~0=|v_#race~global~0_82|} AuxVars[] AssignedVars[t_funThread3of3ForFork0_#t~nondet7, #race~global~0][189], [t_funThread1of3ForFork0InUse, 33#L706-7true, t_funThread2of3ForFork0InUse, t_funThread3of3ForFork0InUse, 218#true, Black: 203#(= |ULTIMATE.start_main_~i~0#1| 0), 182#L701-4true, 40#L701-17true, 310#(< |ULTIMATE.start_main_~i~0#1| 10000), Black: 206#true, Black: 214#(= |t_funThread1of3ForFork0_#t~nondet6| |#race~global~0|), 176#L701-18true, Black: 220#(= |#race~global~0| |t_funThread2of3ForFork0_#t~nondet6|)]) [2023-08-29 02:54:35,644 INFO L383 tUnfolder$Statistics]: this new event has 44 ancestors and is not cut-off event [2023-08-29 02:54:35,644 INFO L386 tUnfolder$Statistics]: existing Event has 44 ancestors and is not cut-off event [2023-08-29 02:54:35,644 INFO L386 tUnfolder$Statistics]: existing Event has 44 ancestors and is not cut-off event [2023-08-29 02:54:35,644 INFO L386 tUnfolder$Statistics]: existing Event has 44 ancestors and is not cut-off event [2023-08-29 02:54:35,818 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1281] L701-15-->L701-17: Formula: (= |v_#race~global~0_80| 0) InVars {} OutVars{t_funThread2of3ForFork0_#t~nondet7=|v_t_funThread2of3ForFork0_#t~nondet7_7|, #race~global~0=|v_#race~global~0_80|} AuxVars[] AssignedVars[t_funThread2of3ForFork0_#t~nondet7, #race~global~0][171], [t_funThread1of3ForFork0InUse, 26#L701-18true, 83#t_funErr1ASSERT_VIOLATIONDATA_RACEtrue, t_funThread2of3ForFork0InUse, t_funThread3of3ForFork0InUse, 107#L706-13true, 218#true, Black: 203#(= |ULTIMATE.start_main_~i~0#1| 0), 310#(< |ULTIMATE.start_main_~i~0#1| 10000), Black: 206#true, 185#L701-17true, Black: 214#(= |t_funThread1of3ForFork0_#t~nondet6| |#race~global~0|), Black: 220#(= |#race~global~0| |t_funThread2of3ForFork0_#t~nondet6|)]) [2023-08-29 02:54:35,818 INFO L383 tUnfolder$Statistics]: this new event has 47 ancestors and is cut-off event [2023-08-29 02:54:35,818 INFO L386 tUnfolder$Statistics]: existing Event has 47 ancestors and is cut-off event [2023-08-29 02:54:35,818 INFO L386 tUnfolder$Statistics]: existing Event has 47 ancestors and is cut-off event [2023-08-29 02:54:35,818 INFO L386 tUnfolder$Statistics]: existing Event has 47 ancestors and is cut-off event [2023-08-29 02:54:35,950 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1281] L701-15-->L701-17: Formula: (= |v_#race~global~0_80| 0) InVars {} OutVars{t_funThread2of3ForFork0_#t~nondet7=|v_t_funThread2of3ForFork0_#t~nondet7_7|, #race~global~0=|v_#race~global~0_80|} AuxVars[] AssignedVars[t_funThread2of3ForFork0_#t~nondet7, #race~global~0][171], [t_funThread1of3ForFork0InUse, 26#L701-18true, 83#t_funErr1ASSERT_VIOLATIONDATA_RACEtrue, 33#L706-7true, t_funThread2of3ForFork0InUse, t_funThread3of3ForFork0InUse, 218#true, Black: 203#(= |ULTIMATE.start_main_~i~0#1| 0), 310#(< |ULTIMATE.start_main_~i~0#1| 10000), Black: 206#true, 185#L701-17true, Black: 214#(= |t_funThread1of3ForFork0_#t~nondet6| |#race~global~0|), Black: 220#(= |#race~global~0| |t_funThread2of3ForFork0_#t~nondet6|)]) [2023-08-29 02:54:35,950 INFO L383 tUnfolder$Statistics]: this new event has 48 ancestors and is cut-off event [2023-08-29 02:54:35,950 INFO L386 tUnfolder$Statistics]: existing Event has 48 ancestors and is cut-off event [2023-08-29 02:54:35,950 INFO L386 tUnfolder$Statistics]: existing Event has 48 ancestors and is cut-off event [2023-08-29 02:54:35,950 INFO L386 tUnfolder$Statistics]: existing Event has 48 ancestors and is cut-off event [2023-08-29 02:54:35,963 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1235] L701-15-->L701-17: Formula: (= |v_#race~global~0_70| 0) InVars {} OutVars{t_funThread1of3ForFork0_#t~nondet7=|v_t_funThread1of3ForFork0_#t~nondet7_7|, #race~global~0=|v_#race~global~0_70|} AuxVars[] AssignedVars[t_funThread1of3ForFork0_#t~nondet7, #race~global~0][186], [26#L701-18true, t_funThread1of3ForFork0InUse, t_funThread2of3ForFork0InUse, t_funThread3of3ForFork0InUse, 107#L706-13true, 218#true, Black: 203#(= |ULTIMATE.start_main_~i~0#1| 0), 171#L701-17true, 310#(< |ULTIMATE.start_main_~i~0#1| 10000), Black: 206#true, Black: 214#(= |t_funThread1of3ForFork0_#t~nondet6| |#race~global~0|), 31#t_funErr1ASSERT_VIOLATIONDATA_RACEtrue, Black: 220#(= |#race~global~0| |t_funThread2of3ForFork0_#t~nondet6|)]) [2023-08-29 02:54:35,964 INFO L383 tUnfolder$Statistics]: this new event has 47 ancestors and is cut-off event [2023-08-29 02:54:35,964 INFO L386 tUnfolder$Statistics]: existing Event has 47 ancestors and is cut-off event [2023-08-29 02:54:35,964 INFO L386 tUnfolder$Statistics]: existing Event has 47 ancestors and is cut-off event [2023-08-29 02:54:35,964 INFO L386 tUnfolder$Statistics]: existing Event has 47 ancestors and is cut-off event [2023-08-29 02:54:36,088 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1235] L701-15-->L701-17: Formula: (= |v_#race~global~0_70| 0) InVars {} OutVars{t_funThread1of3ForFork0_#t~nondet7=|v_t_funThread1of3ForFork0_#t~nondet7_7|, #race~global~0=|v_#race~global~0_70|} AuxVars[] AssignedVars[t_funThread1of3ForFork0_#t~nondet7, #race~global~0][186], [26#L701-18true, t_funThread1of3ForFork0InUse, 33#L706-7true, t_funThread2of3ForFork0InUse, t_funThread3of3ForFork0InUse, 218#true, Black: 203#(= |ULTIMATE.start_main_~i~0#1| 0), 171#L701-17true, 310#(< |ULTIMATE.start_main_~i~0#1| 10000), Black: 206#true, Black: 214#(= |t_funThread1of3ForFork0_#t~nondet6| |#race~global~0|), 31#t_funErr1ASSERT_VIOLATIONDATA_RACEtrue, Black: 220#(= |#race~global~0| |t_funThread2of3ForFork0_#t~nondet6|)]) [2023-08-29 02:54:36,089 INFO L383 tUnfolder$Statistics]: this new event has 48 ancestors and is cut-off event [2023-08-29 02:54:36,089 INFO L386 tUnfolder$Statistics]: existing Event has 48 ancestors and is cut-off event [2023-08-29 02:54:36,089 INFO L386 tUnfolder$Statistics]: existing Event has 48 ancestors and is cut-off event [2023-08-29 02:54:36,089 INFO L386 tUnfolder$Statistics]: existing Event has 48 ancestors and is cut-off event [2023-08-29 02:54:37,480 INFO L130 PetriNetUnfolder]: 37339/65071 cut-off events. [2023-08-29 02:54:37,480 INFO L131 PetriNetUnfolder]: For 105560/113813 co-relation queries the response was YES. [2023-08-29 02:54:37,759 INFO L83 FinitePrefix]: Finished finitePrefix Result has 188018 conditions, 65071 events. 37339/65071 cut-off events. For 105560/113813 co-relation queries the response was YES. Maximal size of possible extension queue 1979. Compared 611896 event pairs, 7404 based on Foata normal form. 6244/65671 useless extension candidates. Maximal degree in co-relation 52305. Up to 36142 conditions per place. [2023-08-29 02:54:38,085 INFO L137 encePairwiseOnDemand]: 343/346 looper letters, 198 selfloop transitions, 4 changer transitions 0/262 dead transitions. [2023-08-29 02:54:38,085 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 262 transitions, 1823 flow [2023-08-29 02:54:38,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 02:54:38,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 02:54:38,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1202 transitions. [2023-08-29 02:54:38,087 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5789980732177264 [2023-08-29 02:54:38,087 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1202 transitions. [2023-08-29 02:54:38,088 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1202 transitions. [2023-08-29 02:54:38,088 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:54:38,088 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1202 transitions. [2023-08-29 02:54:38,091 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 200.33333333333334) internal successors, (1202), 6 states have internal predecessors, (1202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:54:38,094 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 346.0) internal successors, (2422), 7 states have internal predecessors, (2422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:54:38,095 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 346.0) internal successors, (2422), 7 states have internal predecessors, (2422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:54:38,095 INFO L175 Difference]: Start difference. First operand has 108 places, 166 transitions, 884 flow. Second operand 6 states and 1202 transitions. [2023-08-29 02:54:38,095 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 262 transitions, 1823 flow [2023-08-29 02:54:38,464 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 262 transitions, 1703 flow, removed 3 selfloop flow, removed 2 redundant places. [2023-08-29 02:54:38,466 INFO L231 Difference]: Finished difference. Result has 97 places, 139 transitions, 689 flow [2023-08-29 02:54:38,467 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=346, PETRI_DIFFERENCE_MINUEND_FLOW=677, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=689, PETRI_PLACES=97, PETRI_TRANSITIONS=139} [2023-08-29 02:54:38,467 INFO L281 CegarLoopForPetriNet]: 99 programPoint places, -2 predicate places. [2023-08-29 02:54:38,467 INFO L495 AbstractCegarLoop]: Abstraction has has 97 places, 139 transitions, 689 flow [2023-08-29 02:54:38,468 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 186.0) internal successors, (1302), 7 states have internal predecessors, (1302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:54:38,468 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:54:38,468 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:54:38,473 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-08-29 02:54:38,668 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 02:54:38,669 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [t_funErr2ASSERT_VIOLATIONDATA_RACE, t_funErr1ASSERT_VIOLATIONDATA_RACE, t_funErr2ASSERT_VIOLATIONDATA_RACE, t_funErr1ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2023-08-29 02:54:38,669 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:54:38,669 INFO L85 PathProgramCache]: Analyzing trace with hash 1010912872, now seen corresponding path program 1 times [2023-08-29 02:54:38,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:54:38,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883726178] [2023-08-29 02:54:38,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:54:38,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:54:38,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:54:38,694 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-08-29 02:54:38,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:54:38,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883726178] [2023-08-29 02:54:38,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883726178] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:54:38,694 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:54:38,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 02:54:38,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612828174] [2023-08-29 02:54:38,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:54:38,695 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 02:54:38,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:54:38,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 02:54:38,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 02:54:38,738 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 346 [2023-08-29 02:54:38,739 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 139 transitions, 689 flow. Second operand has 3 states, 3 states have (on average 174.33333333333334) internal successors, (523), 3 states have internal predecessors, (523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:54:38,739 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:54:38,739 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 346 [2023-08-29 02:54:38,739 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:54:43,449 INFO L130 PetriNetUnfolder]: 45494/74934 cut-off events. [2023-08-29 02:54:43,449 INFO L131 PetriNetUnfolder]: For 98820/105039 co-relation queries the response was YES. [2023-08-29 02:54:43,768 INFO L83 FinitePrefix]: Finished finitePrefix Result has 215274 conditions, 74934 events. 45494/74934 cut-off events. For 98820/105039 co-relation queries the response was YES. Maximal size of possible extension queue 2066. Compared 655058 event pairs, 25570 based on Foata normal form. 207/68282 useless extension candidates. Maximal degree in co-relation 198273. Up to 55401 conditions per place. [2023-08-29 02:54:44,152 INFO L137 encePairwiseOnDemand]: 334/346 looper letters, 108 selfloop transitions, 38 changer transitions 0/189 dead transitions. [2023-08-29 02:54:44,152 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 189 transitions, 1229 flow [2023-08-29 02:54:44,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 02:54:44,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 02:54:44,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 580 transitions. [2023-08-29 02:54:44,154 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.558766859344894 [2023-08-29 02:54:44,154 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 580 transitions. [2023-08-29 02:54:44,154 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 580 transitions. [2023-08-29 02:54:44,155 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:54:44,155 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 580 transitions. [2023-08-29 02:54:44,156 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 193.33333333333334) internal successors, (580), 3 states have internal predecessors, (580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:54:44,158 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 346.0) internal successors, (1384), 4 states have internal predecessors, (1384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:54:44,159 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 346.0) internal successors, (1384), 4 states have internal predecessors, (1384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:54:44,159 INFO L175 Difference]: Start difference. First operand has 97 places, 139 transitions, 689 flow. Second operand 3 states and 580 transitions. [2023-08-29 02:54:44,159 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 189 transitions, 1229 flow [2023-08-29 02:54:44,173 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 189 transitions, 1218 flow, removed 3 selfloop flow, removed 3 redundant places. [2023-08-29 02:54:44,175 INFO L231 Difference]: Finished difference. Result has 98 places, 169 transitions, 1082 flow [2023-08-29 02:54:44,176 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=346, PETRI_DIFFERENCE_MINUEND_FLOW=680, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1082, PETRI_PLACES=98, PETRI_TRANSITIONS=169} [2023-08-29 02:54:44,176 INFO L281 CegarLoopForPetriNet]: 99 programPoint places, -1 predicate places. [2023-08-29 02:54:44,176 INFO L495 AbstractCegarLoop]: Abstraction has has 98 places, 169 transitions, 1082 flow [2023-08-29 02:54:44,177 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 174.33333333333334) internal successors, (523), 3 states have internal predecessors, (523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:54:44,177 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:54:44,177 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:54:44,177 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-08-29 02:54:44,178 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [t_funErr2ASSERT_VIOLATIONDATA_RACE, t_funErr1ASSERT_VIOLATIONDATA_RACE, t_funErr2ASSERT_VIOLATIONDATA_RACE, t_funErr1ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2023-08-29 02:54:44,178 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:54:44,178 INFO L85 PathProgramCache]: Analyzing trace with hash -126183948, now seen corresponding path program 1 times [2023-08-29 02:54:44,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:54:44,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935604178] [2023-08-29 02:54:44,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:54:44,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:54:44,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:54:44,295 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-29 02:54:44,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:54:44,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935604178] [2023-08-29 02:54:44,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [935604178] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:54:44,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:54:44,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-29 02:54:44,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005709751] [2023-08-29 02:54:44,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:54:44,297 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-29 02:54:44,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:54:44,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-29 02:54:44,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-29 02:54:44,385 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 179 out of 346 [2023-08-29 02:54:44,398 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 169 transitions, 1082 flow. Second operand has 4 states, 4 states have (on average 181.5) internal successors, (726), 4 states have internal predecessors, (726), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:54:44,398 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:54:44,398 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 179 of 346 [2023-08-29 02:54:44,398 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:54:44,542 INFO L130 PetriNetUnfolder]: 395/1419 cut-off events. [2023-08-29 02:54:44,542 INFO L131 PetriNetUnfolder]: For 1619/1619 co-relation queries the response was YES. [2023-08-29 02:54:44,545 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3545 conditions, 1419 events. 395/1419 cut-off events. For 1619/1619 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 8549 event pairs, 44 based on Foata normal form. 378/1797 useless extension candidates. Maximal degree in co-relation 2240. Up to 810 conditions per place. [2023-08-29 02:54:44,547 INFO L137 encePairwiseOnDemand]: 339/346 looper letters, 37 selfloop transitions, 7 changer transitions 0/76 dead transitions. [2023-08-29 02:54:44,547 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 76 transitions, 384 flow [2023-08-29 02:54:44,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-29 02:54:44,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-29 02:54:44,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 759 transitions. [2023-08-29 02:54:44,549 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5484104046242775 [2023-08-29 02:54:44,549 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 759 transitions. [2023-08-29 02:54:44,550 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 759 transitions. [2023-08-29 02:54:44,550 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:54:44,550 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 759 transitions. [2023-08-29 02:54:44,552 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 189.75) internal successors, (759), 4 states have internal predecessors, (759), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:54:44,554 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 346.0) internal successors, (1730), 5 states have internal predecessors, (1730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:54:44,555 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 346.0) internal successors, (1730), 5 states have internal predecessors, (1730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:54:44,555 INFO L175 Difference]: Start difference. First operand has 98 places, 169 transitions, 1082 flow. Second operand 4 states and 759 transitions. [2023-08-29 02:54:44,555 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 76 transitions, 384 flow [2023-08-29 02:54:44,559 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 76 transitions, 278 flow, removed 33 selfloop flow, removed 10 redundant places. [2023-08-29 02:54:44,560 INFO L231 Difference]: Finished difference. Result has 82 places, 70 transitions, 176 flow [2023-08-29 02:54:44,560 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=346, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=176, PETRI_PLACES=82, PETRI_TRANSITIONS=70} [2023-08-29 02:54:44,560 INFO L281 CegarLoopForPetriNet]: 99 programPoint places, -17 predicate places. [2023-08-29 02:54:44,561 INFO L495 AbstractCegarLoop]: Abstraction has has 82 places, 70 transitions, 176 flow [2023-08-29 02:54:44,561 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 181.5) internal successors, (726), 4 states have internal predecessors, (726), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:54:44,561 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:54:44,561 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:54:44,561 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-08-29 02:54:44,562 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [t_funErr2ASSERT_VIOLATIONDATA_RACE, t_funErr1ASSERT_VIOLATIONDATA_RACE, t_funErr2ASSERT_VIOLATIONDATA_RACE, t_funErr1ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2023-08-29 02:54:44,562 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:54:44,562 INFO L85 PathProgramCache]: Analyzing trace with hash -1273069217, now seen corresponding path program 1 times [2023-08-29 02:54:44,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:54:44,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158887324] [2023-08-29 02:54:44,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:54:44,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:54:44,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:54:44,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:54:44,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:54:44,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158887324] [2023-08-29 02:54:44,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [158887324] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:54:44,588 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:54:44,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 02:54:44,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682620256] [2023-08-29 02:54:44,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:54:44,589 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 02:54:44,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:54:44,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 02:54:44,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 02:54:44,628 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 346 [2023-08-29 02:54:44,629 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 70 transitions, 176 flow. Second operand has 3 states, 3 states have (on average 175.33333333333334) internal successors, (526), 3 states have internal predecessors, (526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:54:44,629 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:54:44,629 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 346 [2023-08-29 02:54:44,630 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:54:44,774 INFO L130 PetriNetUnfolder]: 437/1422 cut-off events. [2023-08-29 02:54:44,775 INFO L131 PetriNetUnfolder]: For 363/363 co-relation queries the response was YES. [2023-08-29 02:54:44,777 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2892 conditions, 1422 events. 437/1422 cut-off events. For 363/363 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 8330 event pairs, 420 based on Foata normal form. 0/1417 useless extension candidates. Maximal degree in co-relation 1493. Up to 957 conditions per place. [2023-08-29 02:54:44,780 INFO L137 encePairwiseOnDemand]: 343/346 looper letters, 45 selfloop transitions, 2 changer transitions 0/75 dead transitions. [2023-08-29 02:54:44,780 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 75 transitions, 296 flow [2023-08-29 02:54:44,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 02:54:44,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 02:54:44,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 557 transitions. [2023-08-29 02:54:44,782 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5366088631984586 [2023-08-29 02:54:44,782 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 557 transitions. [2023-08-29 02:54:44,782 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 557 transitions. [2023-08-29 02:54:44,782 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:54:44,782 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 557 transitions. [2023-08-29 02:54:44,784 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 185.66666666666666) internal successors, (557), 3 states have internal predecessors, (557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:54:44,785 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 346.0) internal successors, (1384), 4 states have internal predecessors, (1384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:54:44,785 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 346.0) internal successors, (1384), 4 states have internal predecessors, (1384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:54:44,786 INFO L175 Difference]: Start difference. First operand has 82 places, 70 transitions, 176 flow. Second operand 3 states and 557 transitions. [2023-08-29 02:54:44,786 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 75 transitions, 296 flow [2023-08-29 02:54:44,787 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 75 transitions, 289 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 02:54:44,788 INFO L231 Difference]: Finished difference. Result has 81 places, 69 transitions, 171 flow [2023-08-29 02:54:44,788 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=346, PETRI_DIFFERENCE_MINUEND_FLOW=167, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=171, PETRI_PLACES=81, PETRI_TRANSITIONS=69} [2023-08-29 02:54:44,788 INFO L281 CegarLoopForPetriNet]: 99 programPoint places, -18 predicate places. [2023-08-29 02:54:44,788 INFO L495 AbstractCegarLoop]: Abstraction has has 81 places, 69 transitions, 171 flow [2023-08-29 02:54:44,789 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 175.33333333333334) internal successors, (526), 3 states have internal predecessors, (526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:54:44,789 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:54:44,789 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:54:44,789 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-08-29 02:54:44,789 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [t_funErr2ASSERT_VIOLATIONDATA_RACE, t_funErr1ASSERT_VIOLATIONDATA_RACE, t_funErr2ASSERT_VIOLATIONDATA_RACE, t_funErr1ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2023-08-29 02:54:44,790 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:54:44,790 INFO L85 PathProgramCache]: Analyzing trace with hash 1705190070, now seen corresponding path program 1 times [2023-08-29 02:54:44,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:54:44,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704376424] [2023-08-29 02:54:44,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:54:44,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:54:44,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:54:44,815 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-29 02:54:44,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:54:44,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704376424] [2023-08-29 02:54:44,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1704376424] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:54:44,816 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:54:44,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 02:54:44,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274127281] [2023-08-29 02:54:44,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:54:44,816 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 02:54:44,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:54:44,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 02:54:44,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 02:54:44,868 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 346 [2023-08-29 02:54:44,869 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 69 transitions, 171 flow. Second operand has 3 states, 3 states have (on average 175.33333333333334) internal successors, (526), 3 states have internal predecessors, (526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:54:44,869 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:54:44,869 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 346 [2023-08-29 02:54:44,869 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:54:45,007 INFO L130 PetriNetUnfolder]: 437/1404 cut-off events. [2023-08-29 02:54:45,007 INFO L131 PetriNetUnfolder]: For 384/384 co-relation queries the response was YES. [2023-08-29 02:54:45,009 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2865 conditions, 1404 events. 437/1404 cut-off events. For 384/384 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 8173 event pairs, 409 based on Foata normal form. 0/1399 useless extension candidates. Maximal degree in co-relation 1686. Up to 931 conditions per place. [2023-08-29 02:54:45,011 INFO L137 encePairwiseOnDemand]: 343/346 looper letters, 40 selfloop transitions, 2 changer transitions 3/72 dead transitions. [2023-08-29 02:54:45,011 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 72 transitions, 276 flow [2023-08-29 02:54:45,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 02:54:45,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 02:54:45,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 556 transitions. [2023-08-29 02:54:45,013 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.535645472061657 [2023-08-29 02:54:45,013 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 556 transitions. [2023-08-29 02:54:45,013 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 556 transitions. [2023-08-29 02:54:45,014 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:54:45,014 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 556 transitions. [2023-08-29 02:54:45,015 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 185.33333333333334) internal successors, (556), 3 states have internal predecessors, (556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:54:45,017 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 346.0) internal successors, (1384), 4 states have internal predecessors, (1384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:54:45,017 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 346.0) internal successors, (1384), 4 states have internal predecessors, (1384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:54:45,017 INFO L175 Difference]: Start difference. First operand has 81 places, 69 transitions, 171 flow. Second operand 3 states and 556 transitions. [2023-08-29 02:54:45,017 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 72 transitions, 276 flow [2023-08-29 02:54:45,018 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 72 transitions, 272 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 02:54:45,019 INFO L231 Difference]: Finished difference. Result has 80 places, 65 transitions, 162 flow [2023-08-29 02:54:45,019 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=346, PETRI_DIFFERENCE_MINUEND_FLOW=165, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=162, PETRI_PLACES=80, PETRI_TRANSITIONS=65} [2023-08-29 02:54:45,020 INFO L281 CegarLoopForPetriNet]: 99 programPoint places, -19 predicate places. [2023-08-29 02:54:45,020 INFO L495 AbstractCegarLoop]: Abstraction has has 80 places, 65 transitions, 162 flow [2023-08-29 02:54:45,020 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 175.33333333333334) internal successors, (526), 3 states have internal predecessors, (526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:54:45,020 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:54:45,021 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:54:45,021 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-08-29 02:54:45,021 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [t_funErr2ASSERT_VIOLATIONDATA_RACE, t_funErr1ASSERT_VIOLATIONDATA_RACE, t_funErr2ASSERT_VIOLATIONDATA_RACE, t_funErr1ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2023-08-29 02:54:45,021 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:54:45,021 INFO L85 PathProgramCache]: Analyzing trace with hash 1907932595, now seen corresponding path program 1 times [2023-08-29 02:54:45,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:54:45,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062884943] [2023-08-29 02:54:45,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:54:45,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:54:45,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:54:45,048 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-08-29 02:54:45,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:54:45,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062884943] [2023-08-29 02:54:45,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1062884943] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:54:45,049 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:54:45,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 02:54:45,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036063823] [2023-08-29 02:54:45,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:54:45,050 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 02:54:45,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:54:45,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 02:54:45,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 02:54:45,095 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 346 [2023-08-29 02:54:45,096 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 65 transitions, 162 flow. Second operand has 3 states, 3 states have (on average 176.0) internal successors, (528), 3 states have internal predecessors, (528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:54:45,096 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:54:45,096 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 346 [2023-08-29 02:54:45,096 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:54:45,187 INFO L130 PetriNetUnfolder]: 321/1024 cut-off events. [2023-08-29 02:54:45,187 INFO L131 PetriNetUnfolder]: For 323/323 co-relation queries the response was YES. [2023-08-29 02:54:45,188 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2119 conditions, 1024 events. 321/1024 cut-off events. For 323/323 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 5578 event pairs, 313 based on Foata normal form. 12/1031 useless extension candidates. Maximal degree in co-relation 1280. Up to 703 conditions per place. [2023-08-29 02:54:45,189 INFO L137 encePairwiseOnDemand]: 344/346 looper letters, 0 selfloop transitions, 0 changer transitions 66/66 dead transitions. [2023-08-29 02:54:45,189 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 66 transitions, 246 flow [2023-08-29 02:54:45,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 02:54:45,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 02:54:45,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 552 transitions. [2023-08-29 02:54:45,190 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5317919075144508 [2023-08-29 02:54:45,190 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 552 transitions. [2023-08-29 02:54:45,190 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 552 transitions. [2023-08-29 02:54:45,191 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:54:45,191 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 552 transitions. [2023-08-29 02:54:45,192 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 184.0) internal successors, (552), 3 states have internal predecessors, (552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:54:45,193 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 346.0) internal successors, (1384), 4 states have internal predecessors, (1384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:54:45,194 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 346.0) internal successors, (1384), 4 states have internal predecessors, (1384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:54:45,194 INFO L175 Difference]: Start difference. First operand has 80 places, 65 transitions, 162 flow. Second operand 3 states and 552 transitions. [2023-08-29 02:54:45,194 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 66 transitions, 246 flow [2023-08-29 02:54:45,195 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 66 transitions, 242 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 02:54:45,195 INFO L231 Difference]: Finished difference. Result has 76 places, 0 transitions, 0 flow [2023-08-29 02:54:45,195 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=346, PETRI_DIFFERENCE_MINUEND_FLOW=156, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=76, PETRI_TRANSITIONS=0} [2023-08-29 02:54:45,196 INFO L281 CegarLoopForPetriNet]: 99 programPoint places, -23 predicate places. [2023-08-29 02:54:45,196 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 0 transitions, 0 flow [2023-08-29 02:54:45,196 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 176.0) internal successors, (528), 3 states have internal predecessors, (528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:54:45,197 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONDATA_RACE (17 of 18 remaining) [2023-08-29 02:54:45,197 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (16 of 18 remaining) [2023-08-29 02:54:45,197 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONDATA_RACE (15 of 18 remaining) [2023-08-29 02:54:45,197 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (14 of 18 remaining) [2023-08-29 02:54:45,197 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (13 of 18 remaining) [2023-08-29 02:54:45,198 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONDATA_RACE (12 of 18 remaining) [2023-08-29 02:54:45,198 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (11 of 18 remaining) [2023-08-29 02:54:45,198 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONDATA_RACE (10 of 18 remaining) [2023-08-29 02:54:45,198 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (9 of 18 remaining) [2023-08-29 02:54:45,198 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONDATA_RACE (8 of 18 remaining) [2023-08-29 02:54:45,198 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONDATA_RACE (7 of 18 remaining) [2023-08-29 02:54:45,199 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONDATA_RACE (6 of 18 remaining) [2023-08-29 02:54:45,199 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (5 of 18 remaining) [2023-08-29 02:54:45,199 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (4 of 18 remaining) [2023-08-29 02:54:45,199 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 18 remaining) [2023-08-29 02:54:45,199 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (2 of 18 remaining) [2023-08-29 02:54:45,199 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONDATA_RACE (1 of 18 remaining) [2023-08-29 02:54:45,200 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 18 remaining) [2023-08-29 02:54:45,200 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-08-29 02:54:45,200 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:54:45,201 INFO L307 ceAbstractionStarter]: Result for error location AllErrorsAtOnce was SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE (1/2) [2023-08-29 02:54:45,203 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 198 places, 219 transitions, 468 flow [2023-08-29 02:54:45,251 INFO L130 PetriNetUnfolder]: 58/457 cut-off events. [2023-08-29 02:54:45,251 INFO L131 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2023-08-29 02:54:45,254 INFO L83 FinitePrefix]: Finished finitePrefix Result has 485 conditions, 457 events. 58/457 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1745 event pairs, 1 based on Foata normal form. 0/371 useless extension candidates. Maximal degree in co-relation 301. Up to 16 conditions per place. [2023-08-29 02:54:45,255 INFO L82 GeneralOperation]: Start removeDead. Operand has 198 places, 219 transitions, 468 flow [2023-08-29 02:54:45,257 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 198 places, 219 transitions, 468 flow [2023-08-29 02:54:45,257 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 02:54:45,257 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 198 places, 219 transitions, 468 flow [2023-08-29 02:54:45,257 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 198 places, 219 transitions, 468 flow [2023-08-29 02:54:45,257 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 198 places, 219 transitions, 468 flow [2023-08-29 02:54:45,292 INFO L130 PetriNetUnfolder]: 58/457 cut-off events. [2023-08-29 02:54:45,292 INFO L131 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2023-08-29 02:54:45,296 INFO L83 FinitePrefix]: Finished finitePrefix Result has 485 conditions, 457 events. 58/457 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1745 event pairs, 1 based on Foata normal form. 0/371 useless extension candidates. Maximal degree in co-relation 301. Up to 16 conditions per place. [2023-08-29 02:54:45,307 INFO L119 LiptonReduction]: Number of co-enabled transitions 26928 [2023-08-29 02:54:47,594 INFO L134 LiptonReduction]: Checked pairs total: 99317 [2023-08-29 02:54:47,594 INFO L136 LiptonReduction]: Total number of compositions: 127 [2023-08-29 02:54:47,596 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-29 02:54:47,597 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;@400b496d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 02:54:47,597 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-29 02:54:47,605 INFO L130 PetriNetUnfolder]: 20/120 cut-off events. [2023-08-29 02:54:47,606 INFO L131 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2023-08-29 02:54:47,606 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:54:47,606 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1] [2023-08-29 02:54:47,606 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-29 02:54:47,606 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:54:47,607 INFO L85 PathProgramCache]: Analyzing trace with hash -1944520135, now seen corresponding path program 1 times [2023-08-29 02:54:47,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:54:47,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472757168] [2023-08-29 02:54:47,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:54:47,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:54:47,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-29 02:54:47,627 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-29 02:54:47,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-29 02:54:47,644 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-29 02:54:47,644 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-29 02:54:47,644 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-29 02:54:47,644 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-08-29 02:54:47,645 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-29 02:54:47,645 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (2/2) [2023-08-29 02:54:47,645 WARN L233 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-29 02:54:47,646 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2023-08-29 02:54:47,668 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-08-29 02:54:47,672 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 239 places, 265 transitions, 574 flow [2023-08-29 02:54:47,758 INFO L130 PetriNetUnfolder]: 91/709 cut-off events. [2023-08-29 02:54:47,758 INFO L131 PetriNetUnfolder]: For 48/48 co-relation queries the response was YES. [2023-08-29 02:54:47,770 INFO L83 FinitePrefix]: Finished finitePrefix Result has 764 conditions, 709 events. 91/709 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 3051 event pairs, 6 based on Foata normal form. 0/581 useless extension candidates. Maximal degree in co-relation 477. Up to 32 conditions per place. [2023-08-29 02:54:47,770 INFO L82 GeneralOperation]: Start removeDead. Operand has 239 places, 265 transitions, 574 flow [2023-08-29 02:54:47,778 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 239 places, 265 transitions, 574 flow [2023-08-29 02:54:47,779 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 02:54:47,779 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 239 places, 265 transitions, 574 flow [2023-08-29 02:54:47,779 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 239 places, 265 transitions, 574 flow [2023-08-29 02:54:47,779 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 239 places, 265 transitions, 574 flow