./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_45-escape_racing.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_45-escape_racing.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 4864acf28eb3fe42b4a237468061905eb474c41e1edb519c0790cee08cdc91bf --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-29 18:23:35,581 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 18:23:35,582 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 18:23:35,599 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 18:23:35,603 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 18:23:35,612 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 18:23:35,615 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 18:23:35,617 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 18:23:35,619 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 18:23:35,622 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 18:23:35,622 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 18:23:35,623 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 18:23:35,624 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 18:23:35,625 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 18:23:35,626 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 18:23:35,627 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 18:23:35,628 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 18:23:35,629 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 18:23:35,630 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 18:23:35,632 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 18:23:35,635 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 18:23:35,637 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 18:23:35,638 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 18:23:35,638 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 18:23:35,640 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 18:23:35,643 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 18:23:35,643 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 18:23:35,644 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 18:23:35,645 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 18:23:35,645 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 18:23:35,646 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 18:23:35,648 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 18:23:35,649 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 18:23:35,649 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 18:23:35,650 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 18:23:35,650 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 18:23:35,651 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 18:23:35,652 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 18:23:35,652 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 18:23:35,652 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 18:23:35,653 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 18:23:35,654 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-29 18:23:35,685 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 18:23:35,685 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 18:23:35,686 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 18:23:35,686 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 18:23:35,687 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 18:23:35,687 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 18:23:35,687 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 18:23:35,687 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 18:23:35,687 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 18:23:35,688 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 18:23:35,688 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 18:23:35,688 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 18:23:35,688 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 18:23:35,689 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 18:23:35,689 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 18:23:35,689 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-29 18:23:35,689 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 18:23:35,689 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-29 18:23:35,689 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-29 18:23:35,689 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 18:23:35,689 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-29 18:23:35,690 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 18:23:35,690 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-29 18:23:35,690 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 18:23:35,690 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 18:23:35,690 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 18:23:35,690 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 18:23:35,690 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 18:23:35,691 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 18:23:35,691 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-29 18:23:35,691 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 18:23:35,691 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 18:23:35,691 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 18:23:35,691 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-29 18:23:35,691 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 18:23:35,692 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 18:23:35,692 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 18:23:35,692 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4864acf28eb3fe42b4a237468061905eb474c41e1edb519c0790cee08cdc91bf Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-29 18:23:35,891 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 18:23:35,910 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 18:23:35,912 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 18:23:35,913 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 18:23:35,913 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 18:23:35,914 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_45-escape_racing.i [2023-08-29 18:23:36,824 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 18:23:36,982 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 18:23:36,982 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_45-escape_racing.i [2023-08-29 18:23:36,993 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bfbf88189/b34df0d6be7c47f09ac4808b66f1c5cd/FLAG68e381499 [2023-08-29 18:23:37,002 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bfbf88189/b34df0d6be7c47f09ac4808b66f1c5cd [2023-08-29 18:23:37,003 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 18:23:37,005 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 18:23:37,006 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 18:23:37,006 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 18:23:37,008 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 18:23:37,008 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 06:23:37" (1/1) ... [2023-08-29 18:23:37,009 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31093ee4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:23:37, skipping insertion in model container [2023-08-29 18:23:37,009 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 06:23:37" (1/1) ... [2023-08-29 18:23:37,013 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 18:23:37,032 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 18:23:37,195 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_45-escape_racing.i[30176,30189] [2023-08-29 18:23:37,221 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 18:23:37,233 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 18:23:37,258 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_45-escape_racing.i[30176,30189] [2023-08-29 18:23:37,264 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 18:23:37,291 INFO L208 MainTranslator]: Completed translation [2023-08-29 18:23:37,292 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:23:37 WrapperNode [2023-08-29 18:23:37,292 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 18:23:37,293 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 18:23:37,293 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 18:23:37,293 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 18:23:37,297 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:23:37" (1/1) ... [2023-08-29 18:23:37,329 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:23:37" (1/1) ... [2023-08-29 18:23:37,348 INFO L138 Inliner]: procedures = 170, calls = 45, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 80 [2023-08-29 18:23:37,349 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 18:23:37,349 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 18:23:37,350 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 18:23:37,350 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 18:23:37,356 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:23:37" (1/1) ... [2023-08-29 18:23:37,356 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:23:37" (1/1) ... [2023-08-29 18:23:37,373 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:23:37" (1/1) ... [2023-08-29 18:23:37,373 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:23:37" (1/1) ... [2023-08-29 18:23:37,379 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:23:37" (1/1) ... [2023-08-29 18:23:37,389 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:23:37" (1/1) ... [2023-08-29 18:23:37,391 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:23:37" (1/1) ... [2023-08-29 18:23:37,397 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:23:37" (1/1) ... [2023-08-29 18:23:37,399 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 18:23:37,400 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 18:23:37,401 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 18:23:37,401 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 18:23:37,402 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:23:37" (1/1) ... [2023-08-29 18:23:37,405 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 18:23:37,414 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 18:23:37,423 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-29 18:23:37,429 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-29 18:23:37,446 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-29 18:23:37,447 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-29 18:23:37,447 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-29 18:23:37,447 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-29 18:23:37,447 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 18:23:37,447 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-29 18:23:37,447 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-29 18:23:37,447 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 18:23:37,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-29 18:23:37,448 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 18:23:37,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 18:23:37,449 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-29 18:23:37,524 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 18:23:37,525 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 18:23:37,764 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 18:23:37,769 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 18:23:37,771 INFO L302 CfgBuilder]: Removed 8 assume(true) statements. [2023-08-29 18:23:37,772 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 06:23:37 BoogieIcfgContainer [2023-08-29 18:23:37,773 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 18:23:37,775 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 18:23:37,776 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 18:23:37,777 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 18:23:37,778 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 06:23:37" (1/3) ... [2023-08-29 18:23:37,778 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52ccdf30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 06:23:37, skipping insertion in model container [2023-08-29 18:23:37,778 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:23:37" (2/3) ... [2023-08-29 18:23:37,779 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52ccdf30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 06:23:37, skipping insertion in model container [2023-08-29 18:23:37,779 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 06:23:37" (3/3) ... [2023-08-29 18:23:37,780 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_45-escape_racing.i [2023-08-29 18:23:37,785 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-29 18:23:37,791 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 18:23:37,791 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-08-29 18:23:37,791 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 18:23:37,885 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-29 18:23:37,912 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 136 places, 141 transitions, 290 flow [2023-08-29 18:23:37,947 INFO L130 PetriNetUnfolder]: 9/140 cut-off events. [2023-08-29 18:23:37,947 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-29 18:23:37,951 INFO L83 FinitePrefix]: Finished finitePrefix Result has 145 conditions, 140 events. 9/140 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 282 event pairs, 0 based on Foata normal form. 0/125 useless extension candidates. Maximal degree in co-relation 94. Up to 3 conditions per place. [2023-08-29 18:23:37,951 INFO L82 GeneralOperation]: Start removeDead. Operand has 136 places, 141 transitions, 290 flow [2023-08-29 18:23:37,954 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 126 places, 131 transitions, 265 flow [2023-08-29 18:23:37,956 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 18:23:37,962 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 126 places, 131 transitions, 265 flow [2023-08-29 18:23:37,964 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 126 places, 131 transitions, 265 flow [2023-08-29 18:23:37,964 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 126 places, 131 transitions, 265 flow [2023-08-29 18:23:37,989 INFO L130 PetriNetUnfolder]: 9/131 cut-off events. [2023-08-29 18:23:37,989 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 18:23:37,990 INFO L83 FinitePrefix]: Finished finitePrefix Result has 135 conditions, 131 events. 9/131 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 227 event pairs, 0 based on Foata normal form. 0/116 useless extension candidates. Maximal degree in co-relation 94. Up to 3 conditions per place. [2023-08-29 18:23:37,992 INFO L119 LiptonReduction]: Number of co-enabled transitions 4026 [2023-08-29 18:23:40,829 INFO L134 LiptonReduction]: Checked pairs total: 20613 [2023-08-29 18:23:40,830 INFO L136 LiptonReduction]: Total number of compositions: 81 [2023-08-29 18:23:40,839 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 18:23:40,843 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;@60d65711, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 18:23:40,843 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2023-08-29 18:23:40,848 INFO L130 PetriNetUnfolder]: 2/32 cut-off events. [2023-08-29 18:23:40,848 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 18:23:40,848 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:23:40,848 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:23:40,848 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2023-08-29 18:23:40,851 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:23:40,851 INFO L85 PathProgramCache]: Analyzing trace with hash -1701940779, now seen corresponding path program 1 times [2023-08-29 18:23:40,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:23:40,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144378129] [2023-08-29 18:23:40,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:23:40,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:23:40,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:23:41,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 18:23:41,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:23:41,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144378129] [2023-08-29 18:23:41,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2144378129] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:23:41,327 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:23:41,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 18:23:41,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995009468] [2023-08-29 18:23:41,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:23:41,334 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 18:23:41,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:23:41,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 18:23:41,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 18:23:41,531 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 222 [2023-08-29 18:23:41,535 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 61 transitions, 125 flow. Second operand has 6 states, 6 states have (on average 107.5) internal successors, (645), 6 states have internal predecessors, (645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:23:41,535 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:23:41,535 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 222 [2023-08-29 18:23:41,536 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:23:41,647 INFO L130 PetriNetUnfolder]: 108/315 cut-off events. [2023-08-29 18:23:41,647 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 18:23:41,650 INFO L83 FinitePrefix]: Finished finitePrefix Result has 569 conditions, 315 events. 108/315 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1338 event pairs, 64 based on Foata normal form. 5/315 useless extension candidates. Maximal degree in co-relation 560. Up to 151 conditions per place. [2023-08-29 18:23:41,652 INFO L137 encePairwiseOnDemand]: 202/222 looper letters, 39 selfloop transitions, 10 changer transitions 0/67 dead transitions. [2023-08-29 18:23:41,652 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 67 transitions, 235 flow [2023-08-29 18:23:41,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 18:23:41,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 18:23:41,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 703 transitions. [2023-08-29 18:23:41,709 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5277777777777778 [2023-08-29 18:23:41,710 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 703 transitions. [2023-08-29 18:23:41,710 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 703 transitions. [2023-08-29 18:23:41,712 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:23:41,713 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 703 transitions. [2023-08-29 18:23:41,717 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 117.16666666666667) internal successors, (703), 6 states have internal predecessors, (703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:23:41,720 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 222.0) internal successors, (1554), 7 states have internal predecessors, (1554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:23:41,721 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 222.0) internal successors, (1554), 7 states have internal predecessors, (1554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:23:41,722 INFO L175 Difference]: Start difference. First operand has 57 places, 61 transitions, 125 flow. Second operand 6 states and 703 transitions. [2023-08-29 18:23:41,723 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 67 transitions, 235 flow [2023-08-29 18:23:41,725 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 67 transitions, 234 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 18:23:41,726 INFO L231 Difference]: Finished difference. Result has 59 places, 51 transitions, 124 flow [2023-08-29 18:23:41,728 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=124, PETRI_PLACES=59, PETRI_TRANSITIONS=51} [2023-08-29 18:23:41,730 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 2 predicate places. [2023-08-29 18:23:41,730 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 51 transitions, 124 flow [2023-08-29 18:23:41,730 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 107.5) internal successors, (645), 6 states have internal predecessors, (645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:23:41,730 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:23:41,731 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:23:41,731 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-29 18:23:41,731 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2023-08-29 18:23:41,731 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:23:41,732 INFO L85 PathProgramCache]: Analyzing trace with hash 1489243381, now seen corresponding path program 1 times [2023-08-29 18:23:41,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:23:41,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668087925] [2023-08-29 18:23:41,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:23:41,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:23:41,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:23:41,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 18:23:41,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:23:41,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668087925] [2023-08-29 18:23:41,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [668087925] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:23:41,878 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:23:41,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 18:23:41,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553416064] [2023-08-29 18:23:41,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:23:41,882 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 18:23:41,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:23:41,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 18:23:41,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 18:23:42,044 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 222 [2023-08-29 18:23:42,045 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 51 transitions, 124 flow. Second operand has 6 states, 6 states have (on average 113.5) internal successors, (681), 6 states have internal predecessors, (681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:23:42,045 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:23:42,045 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 222 [2023-08-29 18:23:42,045 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:23:42,209 INFO L130 PetriNetUnfolder]: 249/789 cut-off events. [2023-08-29 18:23:42,210 INFO L131 PetriNetUnfolder]: For 31/31 co-relation queries the response was YES. [2023-08-29 18:23:42,211 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1431 conditions, 789 events. 249/789 cut-off events. For 31/31 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 4186 event pairs, 48 based on Foata normal form. 0/750 useless extension candidates. Maximal degree in co-relation 1422. Up to 338 conditions per place. [2023-08-29 18:23:42,213 INFO L137 encePairwiseOnDemand]: 208/222 looper letters, 79 selfloop transitions, 37 changer transitions 0/136 dead transitions. [2023-08-29 18:23:42,213 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 136 transitions, 558 flow [2023-08-29 18:23:42,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 18:23:42,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 18:23:42,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 789 transitions. [2023-08-29 18:23:42,215 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5923423423423423 [2023-08-29 18:23:42,215 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 789 transitions. [2023-08-29 18:23:42,215 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 789 transitions. [2023-08-29 18:23:42,215 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:23:42,215 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 789 transitions. [2023-08-29 18:23:42,217 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 131.5) internal successors, (789), 6 states have internal predecessors, (789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:23:42,218 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 222.0) internal successors, (1554), 7 states have internal predecessors, (1554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:23:42,219 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 222.0) internal successors, (1554), 7 states have internal predecessors, (1554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:23:42,219 INFO L175 Difference]: Start difference. First operand has 59 places, 51 transitions, 124 flow. Second operand 6 states and 789 transitions. [2023-08-29 18:23:42,219 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 136 transitions, 558 flow [2023-08-29 18:23:42,221 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 136 transitions, 506 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-29 18:23:42,222 INFO L231 Difference]: Finished difference. Result has 64 places, 87 transitions, 350 flow [2023-08-29 18:23:42,222 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=350, PETRI_PLACES=64, PETRI_TRANSITIONS=87} [2023-08-29 18:23:42,223 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 7 predicate places. [2023-08-29 18:23:42,223 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 87 transitions, 350 flow [2023-08-29 18:23:42,223 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 113.5) internal successors, (681), 6 states have internal predecessors, (681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:23:42,224 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:23:42,224 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:23:42,224 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-29 18:23:42,224 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2023-08-29 18:23:42,224 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:23:42,225 INFO L85 PathProgramCache]: Analyzing trace with hash -1134763747, now seen corresponding path program 1 times [2023-08-29 18:23:42,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:23:42,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835930459] [2023-08-29 18:23:42,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:23:42,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:23:42,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:23:42,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 18:23:42,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:23:42,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835930459] [2023-08-29 18:23:42,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1835930459] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:23:42,385 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:23:42,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 18:23:42,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923664570] [2023-08-29 18:23:42,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:23:42,386 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 18:23:42,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:23:42,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 18:23:42,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 18:23:42,469 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 222 [2023-08-29 18:23:42,470 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 87 transitions, 350 flow. Second operand has 6 states, 6 states have (on average 99.33333333333333) internal successors, (596), 6 states have internal predecessors, (596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:23:42,470 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:23:42,470 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 222 [2023-08-29 18:23:42,470 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:23:42,654 INFO L130 PetriNetUnfolder]: 553/1302 cut-off events. [2023-08-29 18:23:42,654 INFO L131 PetriNetUnfolder]: For 497/514 co-relation queries the response was YES. [2023-08-29 18:23:42,655 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3179 conditions, 1302 events. 553/1302 cut-off events. For 497/514 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 6823 event pairs, 318 based on Foata normal form. 0/1249 useless extension candidates. Maximal degree in co-relation 3166. Up to 1106 conditions per place. [2023-08-29 18:23:42,659 INFO L137 encePairwiseOnDemand]: 208/222 looper letters, 89 selfloop transitions, 44 changer transitions 0/142 dead transitions. [2023-08-29 18:23:42,659 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 142 transitions, 800 flow [2023-08-29 18:23:42,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 18:23:42,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 18:23:42,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 677 transitions. [2023-08-29 18:23:42,661 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5082582582582582 [2023-08-29 18:23:42,661 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 677 transitions. [2023-08-29 18:23:42,661 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 677 transitions. [2023-08-29 18:23:42,661 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:23:42,662 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 677 transitions. [2023-08-29 18:23:42,663 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 112.83333333333333) internal successors, (677), 6 states have internal predecessors, (677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:23:42,664 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 222.0) internal successors, (1554), 7 states have internal predecessors, (1554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:23:42,665 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 222.0) internal successors, (1554), 7 states have internal predecessors, (1554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:23:42,665 INFO L175 Difference]: Start difference. First operand has 64 places, 87 transitions, 350 flow. Second operand 6 states and 677 transitions. [2023-08-29 18:23:42,665 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 142 transitions, 800 flow [2023-08-29 18:23:42,668 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 142 transitions, 800 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 18:23:42,670 INFO L231 Difference]: Finished difference. Result has 73 places, 126 transitions, 656 flow [2023-08-29 18:23:42,670 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=350, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=656, PETRI_PLACES=73, PETRI_TRANSITIONS=126} [2023-08-29 18:23:42,670 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 16 predicate places. [2023-08-29 18:23:42,671 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 126 transitions, 656 flow [2023-08-29 18:23:42,671 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 99.33333333333333) internal successors, (596), 6 states have internal predecessors, (596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:23:42,671 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:23:42,671 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 18:23:42,671 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-29 18:23:42,671 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2023-08-29 18:23:42,672 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:23:42,672 INFO L85 PathProgramCache]: Analyzing trace with hash -1013952666, now seen corresponding path program 1 times [2023-08-29 18:23:42,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:23:42,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848393820] [2023-08-29 18:23:42,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:23:42,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:23:42,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:23:42,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 18:23:42,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:23:42,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848393820] [2023-08-29 18:23:42,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1848393820] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:23:42,866 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:23:42,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 18:23:42,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17522224] [2023-08-29 18:23:42,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:23:42,867 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 18:23:42,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:23:42,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 18:23:42,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 18:23:42,997 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 222 [2023-08-29 18:23:42,998 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 126 transitions, 656 flow. Second operand has 6 states, 6 states have (on average 113.83333333333333) internal successors, (683), 6 states have internal predecessors, (683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:23:42,998 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:23:42,998 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 222 [2023-08-29 18:23:42,998 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:23:43,202 INFO L130 PetriNetUnfolder]: 463/1208 cut-off events. [2023-08-29 18:23:43,202 INFO L131 PetriNetUnfolder]: For 776/803 co-relation queries the response was YES. [2023-08-29 18:23:43,206 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3321 conditions, 1208 events. 463/1208 cut-off events. For 776/803 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 6829 event pairs, 92 based on Foata normal form. 2/1172 useless extension candidates. Maximal degree in co-relation 3303. Up to 651 conditions per place. [2023-08-29 18:23:43,210 INFO L137 encePairwiseOnDemand]: 208/222 looper letters, 120 selfloop transitions, 72 changer transitions 12/242 dead transitions. [2023-08-29 18:23:43,210 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 242 transitions, 1575 flow [2023-08-29 18:23:43,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 18:23:43,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 18:23:43,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 789 transitions. [2023-08-29 18:23:43,212 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5923423423423423 [2023-08-29 18:23:43,213 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 789 transitions. [2023-08-29 18:23:43,213 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 789 transitions. [2023-08-29 18:23:43,214 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:23:43,214 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 789 transitions. [2023-08-29 18:23:43,216 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 131.5) internal successors, (789), 6 states have internal predecessors, (789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:23:43,217 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 222.0) internal successors, (1554), 7 states have internal predecessors, (1554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:23:43,218 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 222.0) internal successors, (1554), 7 states have internal predecessors, (1554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:23:43,218 INFO L175 Difference]: Start difference. First operand has 73 places, 126 transitions, 656 flow. Second operand 6 states and 789 transitions. [2023-08-29 18:23:43,218 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 242 transitions, 1575 flow [2023-08-29 18:23:43,223 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 242 transitions, 1551 flow, removed 12 selfloop flow, removed 0 redundant places. [2023-08-29 18:23:43,227 INFO L231 Difference]: Finished difference. Result has 83 places, 193 transitions, 1368 flow [2023-08-29 18:23:43,227 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=632, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1368, PETRI_PLACES=83, PETRI_TRANSITIONS=193} [2023-08-29 18:23:43,228 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 26 predicate places. [2023-08-29 18:23:43,228 INFO L495 AbstractCegarLoop]: Abstraction has has 83 places, 193 transitions, 1368 flow [2023-08-29 18:23:43,229 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 113.83333333333333) internal successors, (683), 6 states have internal predecessors, (683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:23:43,229 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:23:43,229 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 18:23:43,229 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-29 18:23:43,229 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2023-08-29 18:23:43,229 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:23:43,229 INFO L85 PathProgramCache]: Analyzing trace with hash -606428831, now seen corresponding path program 1 times [2023-08-29 18:23:43,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:23:43,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259979374] [2023-08-29 18:23:43,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:23:43,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:23:43,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:23:43,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 18:23:43,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:23:43,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259979374] [2023-08-29 18:23:43,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1259979374] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:23:43,341 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:23:43,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-29 18:23:43,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289211035] [2023-08-29 18:23:43,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:23:43,341 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-29 18:23:43,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:23:43,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-29 18:23:43,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-08-29 18:23:43,377 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 222 [2023-08-29 18:23:43,378 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 193 transitions, 1368 flow. Second operand has 5 states, 5 states have (on average 120.8) internal successors, (604), 5 states have internal predecessors, (604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:23:43,378 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:23:43,378 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 222 [2023-08-29 18:23:43,378 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:23:43,444 INFO L130 PetriNetUnfolder]: 125/521 cut-off events. [2023-08-29 18:23:43,444 INFO L131 PetriNetUnfolder]: For 618/653 co-relation queries the response was YES. [2023-08-29 18:23:43,445 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1522 conditions, 521 events. 125/521 cut-off events. For 618/653 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 2705 event pairs, 14 based on Foata normal form. 14/531 useless extension candidates. Maximal degree in co-relation 1499. Up to 135 conditions per place. [2023-08-29 18:23:43,446 INFO L137 encePairwiseOnDemand]: 214/222 looper letters, 32 selfloop transitions, 7 changer transitions 3/121 dead transitions. [2023-08-29 18:23:43,446 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 121 transitions, 841 flow [2023-08-29 18:23:43,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-29 18:23:43,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-29 18:23:43,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 506 transitions. [2023-08-29 18:23:43,448 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5698198198198198 [2023-08-29 18:23:43,448 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 506 transitions. [2023-08-29 18:23:43,448 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 506 transitions. [2023-08-29 18:23:43,448 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:23:43,448 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 506 transitions. [2023-08-29 18:23:43,449 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 126.5) internal successors, (506), 4 states have internal predecessors, (506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:23:43,450 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 222.0) internal successors, (1110), 5 states have internal predecessors, (1110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:23:43,450 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 222.0) internal successors, (1110), 5 states have internal predecessors, (1110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:23:43,450 INFO L175 Difference]: Start difference. First operand has 83 places, 193 transitions, 1368 flow. Second operand 4 states and 506 transitions. [2023-08-29 18:23:43,450 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 121 transitions, 841 flow [2023-08-29 18:23:43,453 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 121 transitions, 716 flow, removed 51 selfloop flow, removed 7 redundant places. [2023-08-29 18:23:43,454 INFO L231 Difference]: Finished difference. Result has 79 places, 115 transitions, 642 flow [2023-08-29 18:23:43,454 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=620, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=642, PETRI_PLACES=79, PETRI_TRANSITIONS=115} [2023-08-29 18:23:43,455 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 22 predicate places. [2023-08-29 18:23:43,455 INFO L495 AbstractCegarLoop]: Abstraction has has 79 places, 115 transitions, 642 flow [2023-08-29 18:23:43,455 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 120.8) internal successors, (604), 5 states have internal predecessors, (604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:23:43,455 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:23:43,455 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:23:43,455 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-29 18:23:43,455 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2023-08-29 18:23:43,456 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:23:43,456 INFO L85 PathProgramCache]: Analyzing trace with hash 427062380, now seen corresponding path program 1 times [2023-08-29 18:23:43,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:23:43,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486136706] [2023-08-29 18:23:43,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:23:43,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:23:43,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:23:43,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 18:23:43,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:23:43,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486136706] [2023-08-29 18:23:43,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486136706] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:23:43,742 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:23:43,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 18:23:43,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038161107] [2023-08-29 18:23:43,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:23:43,742 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 18:23:43,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:23:43,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 18:23:43,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-08-29 18:23:44,024 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 222 [2023-08-29 18:23:44,025 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 115 transitions, 642 flow. Second operand has 10 states, 10 states have (on average 94.3) internal successors, (943), 10 states have internal predecessors, (943), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:23:44,025 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:23:44,025 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 222 [2023-08-29 18:23:44,025 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:23:44,238 INFO L130 PetriNetUnfolder]: 270/728 cut-off events. [2023-08-29 18:23:44,239 INFO L131 PetriNetUnfolder]: For 829/829 co-relation queries the response was YES. [2023-08-29 18:23:44,240 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2373 conditions, 728 events. 270/728 cut-off events. For 829/829 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 3426 event pairs, 104 based on Foata normal form. 0/723 useless extension candidates. Maximal degree in co-relation 2351. Up to 534 conditions per place. [2023-08-29 18:23:44,242 INFO L137 encePairwiseOnDemand]: 213/222 looper letters, 112 selfloop transitions, 32 changer transitions 0/153 dead transitions. [2023-08-29 18:23:44,242 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 153 transitions, 1123 flow [2023-08-29 18:23:44,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-29 18:23:44,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-29 18:23:44,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 902 transitions. [2023-08-29 18:23:44,245 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45145145145145144 [2023-08-29 18:23:44,245 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 902 transitions. [2023-08-29 18:23:44,245 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 902 transitions. [2023-08-29 18:23:44,245 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:23:44,245 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 902 transitions. [2023-08-29 18:23:44,247 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 100.22222222222223) internal successors, (902), 9 states have internal predecessors, (902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:23:44,249 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 222.0) internal successors, (2220), 10 states have internal predecessors, (2220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:23:44,249 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 222.0) internal successors, (2220), 10 states have internal predecessors, (2220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:23:44,249 INFO L175 Difference]: Start difference. First operand has 79 places, 115 transitions, 642 flow. Second operand 9 states and 902 transitions. [2023-08-29 18:23:44,249 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 153 transitions, 1123 flow [2023-08-29 18:23:44,253 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 153 transitions, 1102 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-29 18:23:44,254 INFO L231 Difference]: Finished difference. Result has 83 places, 114 transitions, 684 flow [2023-08-29 18:23:44,254 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=620, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=684, PETRI_PLACES=83, PETRI_TRANSITIONS=114} [2023-08-29 18:23:44,255 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 26 predicate places. [2023-08-29 18:23:44,255 INFO L495 AbstractCegarLoop]: Abstraction has has 83 places, 114 transitions, 684 flow [2023-08-29 18:23:44,255 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 94.3) internal successors, (943), 10 states have internal predecessors, (943), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:23:44,256 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:23:44,256 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:23:44,256 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-29 18:23:44,256 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2023-08-29 18:23:44,256 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:23:44,256 INFO L85 PathProgramCache]: Analyzing trace with hash 1988400922, now seen corresponding path program 1 times [2023-08-29 18:23:44,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:23:44,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880618095] [2023-08-29 18:23:44,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:23:44,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:23:44,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:23:44,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 18:23:44,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:23:44,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880618095] [2023-08-29 18:23:44,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [880618095] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:23:44,577 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:23:44,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 18:23:44,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969473681] [2023-08-29 18:23:44,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:23:44,578 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 18:23:44,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:23:44,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 18:23:44,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-08-29 18:23:44,915 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 222 [2023-08-29 18:23:44,916 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 114 transitions, 684 flow. Second operand has 10 states, 10 states have (on average 110.6) internal successors, (1106), 10 states have internal predecessors, (1106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:23:44,916 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:23:44,916 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 222 [2023-08-29 18:23:44,916 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:23:45,208 INFO L130 PetriNetUnfolder]: 331/888 cut-off events. [2023-08-29 18:23:45,208 INFO L131 PetriNetUnfolder]: For 967/967 co-relation queries the response was YES. [2023-08-29 18:23:45,210 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2969 conditions, 888 events. 331/888 cut-off events. For 967/967 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 4584 event pairs, 16 based on Foata normal form. 20/904 useless extension candidates. Maximal degree in co-relation 2945. Up to 298 conditions per place. [2023-08-29 18:23:45,212 INFO L137 encePairwiseOnDemand]: 213/222 looper letters, 176 selfloop transitions, 30 changer transitions 12/235 dead transitions. [2023-08-29 18:23:45,212 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 235 transitions, 1776 flow [2023-08-29 18:23:45,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-29 18:23:45,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-29 18:23:45,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1213 transitions. [2023-08-29 18:23:45,219 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5463963963963964 [2023-08-29 18:23:45,219 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1213 transitions. [2023-08-29 18:23:45,219 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1213 transitions. [2023-08-29 18:23:45,220 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:23:45,220 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1213 transitions. [2023-08-29 18:23:45,222 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 121.3) internal successors, (1213), 10 states have internal predecessors, (1213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:23:45,224 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 222.0) internal successors, (2442), 11 states have internal predecessors, (2442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:23:45,225 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 222.0) internal successors, (2442), 11 states have internal predecessors, (2442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:23:45,226 INFO L175 Difference]: Start difference. First operand has 83 places, 114 transitions, 684 flow. Second operand 10 states and 1213 transitions. [2023-08-29 18:23:45,226 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 235 transitions, 1776 flow [2023-08-29 18:23:45,230 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 235 transitions, 1640 flow, removed 0 selfloop flow, removed 8 redundant places. [2023-08-29 18:23:45,232 INFO L231 Difference]: Finished difference. Result has 89 places, 137 transitions, 896 flow [2023-08-29 18:23:45,233 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=620, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=896, PETRI_PLACES=89, PETRI_TRANSITIONS=137} [2023-08-29 18:23:45,234 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 32 predicate places. [2023-08-29 18:23:45,234 INFO L495 AbstractCegarLoop]: Abstraction has has 89 places, 137 transitions, 896 flow [2023-08-29 18:23:45,234 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 110.6) internal successors, (1106), 10 states have internal predecessors, (1106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:23:45,235 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:23:45,235 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:23:45,235 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-29 18:23:45,235 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2023-08-29 18:23:45,235 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:23:45,235 INFO L85 PathProgramCache]: Analyzing trace with hash -1154200964, now seen corresponding path program 2 times [2023-08-29 18:23:45,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:23:45,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916797545] [2023-08-29 18:23:45,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:23:45,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:23:45,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:23:45,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 18:23:45,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:23:45,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916797545] [2023-08-29 18:23:45,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [916797545] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:23:45,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:23:45,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-29 18:23:45,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945339741] [2023-08-29 18:23:45,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:23:45,538 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-29 18:23:45,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:23:45,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-29 18:23:45,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2023-08-29 18:23:45,896 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 222 [2023-08-29 18:23:45,898 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 137 transitions, 896 flow. Second operand has 11 states, 11 states have (on average 110.45454545454545) internal successors, (1215), 11 states have internal predecessors, (1215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:23:45,898 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:23:45,898 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 222 [2023-08-29 18:23:45,898 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:23:46,252 INFO L130 PetriNetUnfolder]: 348/971 cut-off events. [2023-08-29 18:23:46,252 INFO L131 PetriNetUnfolder]: For 1960/1960 co-relation queries the response was YES. [2023-08-29 18:23:46,254 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3676 conditions, 971 events. 348/971 cut-off events. For 1960/1960 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 5340 event pairs, 50 based on Foata normal form. 16/982 useless extension candidates. Maximal degree in co-relation 3647. Up to 475 conditions per place. [2023-08-29 18:23:46,257 INFO L137 encePairwiseOnDemand]: 205/222 looper letters, 125 selfloop transitions, 57 changer transitions 15/214 dead transitions. [2023-08-29 18:23:46,257 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 214 transitions, 1613 flow [2023-08-29 18:23:46,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-29 18:23:46,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-29 18:23:46,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1118 transitions. [2023-08-29 18:23:46,259 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5595595595595596 [2023-08-29 18:23:46,260 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1118 transitions. [2023-08-29 18:23:46,260 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1118 transitions. [2023-08-29 18:23:46,260 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:23:46,260 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1118 transitions. [2023-08-29 18:23:46,262 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 124.22222222222223) internal successors, (1118), 9 states have internal predecessors, (1118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:23:46,264 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 222.0) internal successors, (2220), 10 states have internal predecessors, (2220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:23:46,264 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 222.0) internal successors, (2220), 10 states have internal predecessors, (2220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:23:46,264 INFO L175 Difference]: Start difference. First operand has 89 places, 137 transitions, 896 flow. Second operand 9 states and 1118 transitions. [2023-08-29 18:23:46,264 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 214 transitions, 1613 flow [2023-08-29 18:23:46,273 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 214 transitions, 1603 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-29 18:23:46,277 INFO L231 Difference]: Finished difference. Result has 97 places, 147 transitions, 1175 flow [2023-08-29 18:23:46,277 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=890, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=47, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1175, PETRI_PLACES=97, PETRI_TRANSITIONS=147} [2023-08-29 18:23:46,279 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 40 predicate places. [2023-08-29 18:23:46,280 INFO L495 AbstractCegarLoop]: Abstraction has has 97 places, 147 transitions, 1175 flow [2023-08-29 18:23:46,280 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 110.45454545454545) internal successors, (1215), 11 states have internal predecessors, (1215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:23:46,280 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:23:46,280 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:23:46,281 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-29 18:23:46,281 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2023-08-29 18:23:46,281 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:23:46,281 INFO L85 PathProgramCache]: Analyzing trace with hash -968877818, now seen corresponding path program 3 times [2023-08-29 18:23:46,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:23:46,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895212334] [2023-08-29 18:23:46,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:23:46,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:23:46,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:23:46,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 18:23:46,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:23:46,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895212334] [2023-08-29 18:23:46,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [895212334] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:23:46,560 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:23:46,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-29 18:23:46,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538018779] [2023-08-29 18:23:46,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:23:46,562 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-29 18:23:46,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:23:46,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-29 18:23:46,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-08-29 18:23:46,992 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 222 [2023-08-29 18:23:46,993 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 147 transitions, 1175 flow. Second operand has 11 states, 11 states have (on average 110.45454545454545) internal successors, (1215), 11 states have internal predecessors, (1215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:23:46,993 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:23:46,993 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 222 [2023-08-29 18:23:46,993 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:23:47,449 INFO L130 PetriNetUnfolder]: 411/1173 cut-off events. [2023-08-29 18:23:47,450 INFO L131 PetriNetUnfolder]: For 3635/3635 co-relation queries the response was YES. [2023-08-29 18:23:47,454 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4868 conditions, 1173 events. 411/1173 cut-off events. For 3635/3635 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 6933 event pairs, 42 based on Foata normal form. 20/1186 useless extension candidates. Maximal degree in co-relation 4836. Up to 304 conditions per place. [2023-08-29 18:23:47,457 INFO L137 encePairwiseOnDemand]: 205/222 looper letters, 185 selfloop transitions, 83 changer transitions 18/303 dead transitions. [2023-08-29 18:23:47,457 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 303 transitions, 2706 flow [2023-08-29 18:23:47,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-29 18:23:47,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-29 18:23:47,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1250 transitions. [2023-08-29 18:23:47,460 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5630630630630631 [2023-08-29 18:23:47,460 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1250 transitions. [2023-08-29 18:23:47,460 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1250 transitions. [2023-08-29 18:23:47,461 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:23:47,461 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1250 transitions. [2023-08-29 18:23:47,463 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 125.0) internal successors, (1250), 10 states have internal predecessors, (1250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:23:47,466 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 222.0) internal successors, (2442), 11 states have internal predecessors, (2442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:23:47,466 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 222.0) internal successors, (2442), 11 states have internal predecessors, (2442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:23:47,466 INFO L175 Difference]: Start difference. First operand has 97 places, 147 transitions, 1175 flow. Second operand 10 states and 1250 transitions. [2023-08-29 18:23:47,466 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 303 transitions, 2706 flow [2023-08-29 18:23:47,477 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 303 transitions, 2647 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-29 18:23:47,480 INFO L231 Difference]: Finished difference. Result has 107 places, 186 transitions, 1871 flow [2023-08-29 18:23:47,480 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=1129, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=147, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=51, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1871, PETRI_PLACES=107, PETRI_TRANSITIONS=186} [2023-08-29 18:23:47,481 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 50 predicate places. [2023-08-29 18:23:47,481 INFO L495 AbstractCegarLoop]: Abstraction has has 107 places, 186 transitions, 1871 flow [2023-08-29 18:23:47,482 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 110.45454545454545) internal successors, (1215), 11 states have internal predecessors, (1215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:23:47,482 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:23:47,482 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:23:47,482 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-29 18:23:47,482 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2023-08-29 18:23:47,483 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:23:47,483 INFO L85 PathProgramCache]: Analyzing trace with hash 1387659590, now seen corresponding path program 4 times [2023-08-29 18:23:47,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:23:47,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803782094] [2023-08-29 18:23:47,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:23:47,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:23:47,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:23:47,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 18:23:47,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:23:47,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803782094] [2023-08-29 18:23:47,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [803782094] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:23:47,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:23:47,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-29 18:23:47,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289926384] [2023-08-29 18:23:47,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:23:47,753 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-29 18:23:47,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:23:47,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-29 18:23:47,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-08-29 18:23:48,210 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 222 [2023-08-29 18:23:48,212 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 186 transitions, 1871 flow. Second operand has 11 states, 11 states have (on average 110.45454545454545) internal successors, (1215), 11 states have internal predecessors, (1215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:23:48,212 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:23:48,212 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 222 [2023-08-29 18:23:48,212 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:23:48,676 INFO L130 PetriNetUnfolder]: 451/1322 cut-off events. [2023-08-29 18:23:48,676 INFO L131 PetriNetUnfolder]: For 6795/6795 co-relation queries the response was YES. [2023-08-29 18:23:48,680 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6035 conditions, 1322 events. 451/1322 cut-off events. For 6795/6795 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 8258 event pairs, 59 based on Foata normal form. 20/1336 useless extension candidates. Maximal degree in co-relation 5996. Up to 596 conditions per place. [2023-08-29 18:23:48,684 INFO L137 encePairwiseOnDemand]: 205/222 looper letters, 167 selfloop transitions, 91 changer transitions 18/293 dead transitions. [2023-08-29 18:23:48,685 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 293 transitions, 3022 flow [2023-08-29 18:23:48,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-29 18:23:48,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-29 18:23:48,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1247 transitions. [2023-08-29 18:23:48,687 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5617117117117117 [2023-08-29 18:23:48,687 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1247 transitions. [2023-08-29 18:23:48,687 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1247 transitions. [2023-08-29 18:23:48,688 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:23:48,688 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1247 transitions. [2023-08-29 18:23:48,690 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 124.7) internal successors, (1247), 10 states have internal predecessors, (1247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:23:48,692 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 222.0) internal successors, (2442), 11 states have internal predecessors, (2442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:23:48,693 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 222.0) internal successors, (2442), 11 states have internal predecessors, (2442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:23:48,693 INFO L175 Difference]: Start difference. First operand has 107 places, 186 transitions, 1871 flow. Second operand 10 states and 1247 transitions. [2023-08-29 18:23:48,693 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 293 transitions, 3022 flow [2023-08-29 18:23:48,711 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 293 transitions, 2973 flow, removed 23 selfloop flow, removed 2 redundant places. [2023-08-29 18:23:48,714 INFO L231 Difference]: Finished difference. Result has 119 places, 206 transitions, 2448 flow [2023-08-29 18:23:48,715 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=1822, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=186, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=71, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=2448, PETRI_PLACES=119, PETRI_TRANSITIONS=206} [2023-08-29 18:23:48,715 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 62 predicate places. [2023-08-29 18:23:48,715 INFO L495 AbstractCegarLoop]: Abstraction has has 119 places, 206 transitions, 2448 flow [2023-08-29 18:23:48,716 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 110.45454545454545) internal successors, (1215), 11 states have internal predecessors, (1215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:23:48,716 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:23:48,716 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:23:48,716 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-29 18:23:48,716 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2023-08-29 18:23:48,717 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:23:48,717 INFO L85 PathProgramCache]: Analyzing trace with hash 652243900, now seen corresponding path program 5 times [2023-08-29 18:23:48,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:23:48,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389320317] [2023-08-29 18:23:48,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:23:48,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:23:48,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:23:48,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 18:23:48,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:23:48,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389320317] [2023-08-29 18:23:48,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1389320317] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:23:48,966 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:23:48,966 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-29 18:23:48,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311514308] [2023-08-29 18:23:48,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:23:48,967 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-29 18:23:48,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:23:48,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-29 18:23:48,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-08-29 18:23:49,374 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 222 [2023-08-29 18:23:49,375 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 206 transitions, 2448 flow. Second operand has 11 states, 11 states have (on average 110.45454545454545) internal successors, (1215), 11 states have internal predecessors, (1215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:23:49,375 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:23:49,376 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 222 [2023-08-29 18:23:49,376 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:23:49,874 INFO L130 PetriNetUnfolder]: 430/1324 cut-off events. [2023-08-29 18:23:49,875 INFO L131 PetriNetUnfolder]: For 8726/8726 co-relation queries the response was YES. [2023-08-29 18:23:49,878 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6485 conditions, 1324 events. 430/1324 cut-off events. For 8726/8726 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 8546 event pairs, 35 based on Foata normal form. 20/1339 useless extension candidates. Maximal degree in co-relation 6440. Up to 465 conditions per place. [2023-08-29 18:23:49,883 INFO L137 encePairwiseOnDemand]: 205/222 looper letters, 189 selfloop transitions, 98 changer transitions 21/325 dead transitions. [2023-08-29 18:23:49,883 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 325 transitions, 3806 flow [2023-08-29 18:23:49,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-29 18:23:49,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-29 18:23:49,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1248 transitions. [2023-08-29 18:23:49,886 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5621621621621622 [2023-08-29 18:23:49,886 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1248 transitions. [2023-08-29 18:23:49,886 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1248 transitions. [2023-08-29 18:23:49,887 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:23:49,887 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1248 transitions. [2023-08-29 18:23:49,889 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 124.8) internal successors, (1248), 10 states have internal predecessors, (1248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:23:49,891 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 222.0) internal successors, (2442), 11 states have internal predecessors, (2442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:23:49,892 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 222.0) internal successors, (2442), 11 states have internal predecessors, (2442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:23:49,892 INFO L175 Difference]: Start difference. First operand has 119 places, 206 transitions, 2448 flow. Second operand 10 states and 1248 transitions. [2023-08-29 18:23:49,892 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 325 transitions, 3806 flow [2023-08-29 18:23:49,916 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 325 transitions, 3694 flow, removed 18 selfloop flow, removed 8 redundant places. [2023-08-29 18:23:49,920 INFO L231 Difference]: Finished difference. Result has 123 places, 220 transitions, 2954 flow [2023-08-29 18:23:49,921 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=2330, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=205, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=81, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=2954, PETRI_PLACES=123, PETRI_TRANSITIONS=220} [2023-08-29 18:23:49,922 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 66 predicate places. [2023-08-29 18:23:49,922 INFO L495 AbstractCegarLoop]: Abstraction has has 123 places, 220 transitions, 2954 flow [2023-08-29 18:23:49,922 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 110.45454545454545) internal successors, (1215), 11 states have internal predecessors, (1215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:23:49,923 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:23:49,923 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:23:49,923 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-29 18:23:49,923 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2023-08-29 18:23:49,923 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:23:49,923 INFO L85 PathProgramCache]: Analyzing trace with hash 1053192051, now seen corresponding path program 1 times [2023-08-29 18:23:49,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:23:49,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54125389] [2023-08-29 18:23:49,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:23:49,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:23:49,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:23:50,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 18:23:50,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:23:50,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54125389] [2023-08-29 18:23:50,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [54125389] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:23:50,069 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:23:50,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 18:23:50,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070424647] [2023-08-29 18:23:50,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:23:50,070 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 18:23:50,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:23:50,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 18:23:50,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 18:23:50,158 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 222 [2023-08-29 18:23:50,159 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 220 transitions, 2954 flow. Second operand has 6 states, 6 states have (on average 101.5) internal successors, (609), 6 states have internal predecessors, (609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:23:50,159 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:23:50,159 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 222 [2023-08-29 18:23:50,159 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:23:50,350 INFO L130 PetriNetUnfolder]: 452/1326 cut-off events. [2023-08-29 18:23:50,350 INFO L131 PetriNetUnfolder]: For 9653/9660 co-relation queries the response was YES. [2023-08-29 18:23:50,354 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7173 conditions, 1326 events. 452/1326 cut-off events. For 9653/9660 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 8266 event pairs, 150 based on Foata normal form. 29/1351 useless extension candidates. Maximal degree in co-relation 7127. Up to 1069 conditions per place. [2023-08-29 18:23:50,358 INFO L137 encePairwiseOnDemand]: 213/222 looper letters, 126 selfloop transitions, 51 changer transitions 92/279 dead transitions. [2023-08-29 18:23:50,359 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 279 transitions, 4183 flow [2023-08-29 18:23:50,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 18:23:50,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 18:23:50,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 645 transitions. [2023-08-29 18:23:50,360 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48423423423423423 [2023-08-29 18:23:50,361 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 645 transitions. [2023-08-29 18:23:50,361 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 645 transitions. [2023-08-29 18:23:50,361 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:23:50,361 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 645 transitions. [2023-08-29 18:23:50,362 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 107.5) internal successors, (645), 6 states have internal predecessors, (645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:23:50,364 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 222.0) internal successors, (1554), 7 states have internal predecessors, (1554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:23:50,364 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 222.0) internal successors, (1554), 7 states have internal predecessors, (1554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:23:50,364 INFO L175 Difference]: Start difference. First operand has 123 places, 220 transitions, 2954 flow. Second operand 6 states and 645 transitions. [2023-08-29 18:23:50,364 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 279 transitions, 4183 flow [2023-08-29 18:23:50,390 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 279 transitions, 3963 flow, removed 53 selfloop flow, removed 6 redundant places. [2023-08-29 18:23:50,393 INFO L231 Difference]: Finished difference. Result has 123 places, 187 transitions, 2233 flow [2023-08-29 18:23:50,393 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=2810, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=220, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=199, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2233, PETRI_PLACES=123, PETRI_TRANSITIONS=187} [2023-08-29 18:23:50,394 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 66 predicate places. [2023-08-29 18:23:50,394 INFO L495 AbstractCegarLoop]: Abstraction has has 123 places, 187 transitions, 2233 flow [2023-08-29 18:23:50,395 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 101.5) internal successors, (609), 6 states have internal predecessors, (609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:23:50,395 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:23:50,395 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:23:50,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-29 18:23:50,395 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2023-08-29 18:23:50,396 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:23:50,396 INFO L85 PathProgramCache]: Analyzing trace with hash 553714978, now seen corresponding path program 1 times [2023-08-29 18:23:50,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:23:50,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519962791] [2023-08-29 18:23:50,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:23:50,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:23:50,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:23:50,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 18:23:50,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:23:50,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519962791] [2023-08-29 18:23:50,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [519962791] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:23:50,643 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:23:50,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 18:23:50,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364685281] [2023-08-29 18:23:50,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:23:50,644 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 18:23:50,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:23:50,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 18:23:50,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-08-29 18:23:50,826 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 222 [2023-08-29 18:23:50,827 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 187 transitions, 2233 flow. Second operand has 10 states, 10 states have (on average 95.6) internal successors, (956), 10 states have internal predecessors, (956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:23:50,827 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:23:50,827 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 222 [2023-08-29 18:23:50,827 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:23:51,071 INFO L130 PetriNetUnfolder]: 344/993 cut-off events. [2023-08-29 18:23:51,071 INFO L131 PetriNetUnfolder]: For 8323/8323 co-relation queries the response was YES. [2023-08-29 18:23:51,074 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5352 conditions, 993 events. 344/993 cut-off events. For 8323/8323 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 5495 event pairs, 126 based on Foata normal form. 18/1009 useless extension candidates. Maximal degree in co-relation 5305. Up to 667 conditions per place. [2023-08-29 18:23:51,076 INFO L137 encePairwiseOnDemand]: 214/222 looper letters, 0 selfloop transitions, 0 changer transitions 233/233 dead transitions. [2023-08-29 18:23:51,076 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 233 transitions, 3095 flow [2023-08-29 18:23:51,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-29 18:23:51,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-29 18:23:51,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 898 transitions. [2023-08-29 18:23:51,078 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4494494494494494 [2023-08-29 18:23:51,078 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 898 transitions. [2023-08-29 18:23:51,078 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 898 transitions. [2023-08-29 18:23:51,079 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:23:51,079 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 898 transitions. [2023-08-29 18:23:51,080 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 99.77777777777777) internal successors, (898), 9 states have internal predecessors, (898), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:23:51,082 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 222.0) internal successors, (2220), 10 states have internal predecessors, (2220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:23:51,082 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 222.0) internal successors, (2220), 10 states have internal predecessors, (2220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:23:51,082 INFO L175 Difference]: Start difference. First operand has 123 places, 187 transitions, 2233 flow. Second operand 9 states and 898 transitions. [2023-08-29 18:23:51,083 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 233 transitions, 3095 flow [2023-08-29 18:23:51,105 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 233 transitions, 2692 flow, removed 82 selfloop flow, removed 8 redundant places. [2023-08-29 18:23:51,106 INFO L231 Difference]: Finished difference. Result has 120 places, 0 transitions, 0 flow [2023-08-29 18:23:51,106 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=1858, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=186, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=186, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=0, PETRI_PLACES=120, PETRI_TRANSITIONS=0} [2023-08-29 18:23:51,107 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 63 predicate places. [2023-08-29 18:23:51,107 INFO L495 AbstractCegarLoop]: Abstraction has has 120 places, 0 transitions, 0 flow [2023-08-29 18:23:51,108 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 95.6) internal successors, (956), 10 states have internal predecessors, (956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:23:51,110 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (10 of 11 remaining) [2023-08-29 18:23:51,111 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (9 of 11 remaining) [2023-08-29 18:23:51,112 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 11 remaining) [2023-08-29 18:23:51,113 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 11 remaining) [2023-08-29 18:23:51,114 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONDATA_RACE (6 of 11 remaining) [2023-08-29 18:23:51,114 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (5 of 11 remaining) [2023-08-29 18:23:51,114 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 11 remaining) [2023-08-29 18:23:51,114 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 11 remaining) [2023-08-29 18:23:51,114 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONDATA_RACE (2 of 11 remaining) [2023-08-29 18:23:51,114 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 11 remaining) [2023-08-29 18:23:51,114 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 11 remaining) [2023-08-29 18:23:51,114 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-29 18:23:51,114 INFO L445 BasicCegarLoop]: Path program histogram: [5, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:23:51,117 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-29 18:23:51,117 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-29 18:23:51,120 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 06:23:51 BasicIcfg [2023-08-29 18:23:51,120 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-29 18:23:51,120 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-29 18:23:51,120 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-29 18:23:51,120 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-29 18:23:51,120 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 06:23:37" (3/4) ... [2023-08-29 18:23:51,122 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-29 18:23:51,125 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2023-08-29 18:23:51,129 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2023-08-29 18:23:51,129 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-08-29 18:23:51,129 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-29 18:23:51,129 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-29 18:23:51,155 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-29 18:23:51,155 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-29 18:23:51,156 INFO L158 Benchmark]: Toolchain (without parser) took 14150.91ms. Allocated memory was 79.7MB in the beginning and 285.2MB in the end (delta: 205.5MB). Free memory was 54.7MB in the beginning and 145.1MB in the end (delta: -90.5MB). Peak memory consumption was 114.2MB. Max. memory is 16.1GB. [2023-08-29 18:23:51,156 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 79.7MB. Free memory is still 56.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 18:23:51,156 INFO L158 Benchmark]: CACSL2BoogieTranslator took 286.50ms. Allocated memory is still 79.7MB. Free memory was 54.7MB in the beginning and 34.5MB in the end (delta: 20.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-08-29 18:23:51,156 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.17ms. Allocated memory is still 79.7MB. Free memory was 34.3MB in the beginning and 57.8MB in the end (delta: -23.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-29 18:23:51,156 INFO L158 Benchmark]: Boogie Preprocessor took 50.32ms. Allocated memory is still 79.7MB. Free memory was 57.8MB in the beginning and 55.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 18:23:51,156 INFO L158 Benchmark]: RCFGBuilder took 373.08ms. Allocated memory is still 79.7MB. Free memory was 55.7MB in the beginning and 37.5MB in the end (delta: 18.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-08-29 18:23:51,157 INFO L158 Benchmark]: TraceAbstraction took 13344.95ms. Allocated memory was 79.7MB in the beginning and 285.2MB in the end (delta: 205.5MB). Free memory was 36.9MB in the beginning and 148.3MB in the end (delta: -111.4MB). Peak memory consumption was 95.7MB. Max. memory is 16.1GB. [2023-08-29 18:23:51,157 INFO L158 Benchmark]: Witness Printer took 35.36ms. Allocated memory is still 285.2MB. Free memory was 148.3MB in the beginning and 145.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 18:23:51,158 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 79.7MB. Free memory is still 56.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 286.50ms. Allocated memory is still 79.7MB. Free memory was 54.7MB in the beginning and 34.5MB in the end (delta: 20.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.17ms. Allocated memory is still 79.7MB. Free memory was 34.3MB in the beginning and 57.8MB in the end (delta: -23.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 50.32ms. Allocated memory is still 79.7MB. Free memory was 57.8MB in the beginning and 55.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 373.08ms. Allocated memory is still 79.7MB. Free memory was 55.7MB in the beginning and 37.5MB in the end (delta: 18.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 13344.95ms. Allocated memory was 79.7MB in the beginning and 285.2MB in the end (delta: 205.5MB). Free memory was 36.9MB in the beginning and 148.3MB in the end (delta: -111.4MB). Peak memory consumption was 95.7MB. Max. memory is 16.1GB. * Witness Printer took 35.36ms. Allocated memory is still 285.2MB. Free memory was 148.3MB in the beginning and 145.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.9s, 126 PlacesBefore, 57 PlacesAfterwards, 131 TransitionsBefore, 61 TransitionsAfterwards, 4026 CoEnabledTransitionPairs, 6 FixpointIterations, 35 TrivialSequentialCompositions, 39 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 1 ChoiceCompositions, 81 TotalNumberOfCompositions, 20613 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4422, independent: 3802, independent conditional: 0, independent unconditional: 3802, dependent: 620, dependent conditional: 0, dependent unconditional: 620, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1771, independent: 1688, independent conditional: 0, independent unconditional: 1688, dependent: 83, dependent conditional: 0, dependent unconditional: 83, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 4422, independent: 2114, independent conditional: 0, independent unconditional: 2114, dependent: 537, dependent conditional: 0, dependent unconditional: 537, unknown: 1771, unknown conditional: 0, unknown unconditional: 1771] , Statistics on independence cache: Total cache size (in pairs): 262, Positive cache size: 208, Positive conditional cache size: 0, Positive unconditional cache size: 208, Negative cache size: 54, Negative conditional cache size: 0, Negative unconditional cache size: 54, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 713]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 711]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 702]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 702]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 702]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 702]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 190 locations, 11 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 13.2s, OverallIterations: 13, TraceHistogramMax: 1, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 7.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3454 SdHoareTripleChecker+Valid, 4.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2679 mSDsluCounter, 1099 SdHoareTripleChecker+Invalid, 4.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 954 mSDsCounter, 992 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 9637 IncrementalHoareTripleChecker+Invalid, 10629 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 992 mSolverCounterUnsat, 145 mSDtfsCounter, 9637 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 151 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 122 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 177 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2954occurred in iteration=11, InterpolantAutomatonStates: 101, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.9s InterpolantComputationTime, 312 NumberOfCodeBlocks, 312 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 299 ConstructedInterpolants, 0 QuantifiedInterpolants, 3293 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 13 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-29 18:23:51,180 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE