./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_79-equ_racefree.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_79-equ_racefree.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5ac72ff2379990464c5f55660be1e08b12557a61aceeef8401296ef66be035fc --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-29 03:01:17,623 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 03:01:17,625 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 03:01:17,669 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 03:01:17,670 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 03:01:17,673 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 03:01:17,675 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 03:01:17,677 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 03:01:17,679 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 03:01:17,683 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 03:01:17,684 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 03:01:17,686 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 03:01:17,687 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 03:01:17,689 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 03:01:17,690 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 03:01:17,694 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 03:01:17,695 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 03:01:17,696 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 03:01:17,698 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 03:01:17,699 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 03:01:17,700 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 03:01:17,701 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 03:01:17,702 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 03:01:17,713 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 03:01:17,716 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 03:01:17,716 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 03:01:17,716 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 03:01:17,717 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 03:01:17,717 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 03:01:17,718 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 03:01:17,718 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 03:01:17,719 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 03:01:17,720 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 03:01:17,720 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 03:01:17,721 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 03:01:17,721 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 03:01:17,722 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 03:01:17,722 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 03:01:17,722 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 03:01:17,723 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 03:01:17,723 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 03:01:17,725 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-29 03:01:17,753 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 03:01:17,754 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 03:01:17,755 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 03:01:17,755 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 03:01:17,756 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 03:01:17,756 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 03:01:17,757 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 03:01:17,757 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 03:01:17,757 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 03:01:17,758 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 03:01:17,758 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 03:01:17,758 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 03:01:17,759 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 03:01:17,759 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 03:01:17,759 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 03:01:17,759 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-29 03:01:17,759 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 03:01:17,759 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-29 03:01:17,760 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-29 03:01:17,760 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 03:01:17,760 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-29 03:01:17,760 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 03:01:17,760 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-29 03:01:17,761 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 03:01:17,761 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 03:01:17,761 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 03:01:17,761 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 03:01:17,761 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 03:01:17,761 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 03:01:17,762 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-29 03:01:17,762 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 03:01:17,762 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 03:01:17,762 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 03:01:17,762 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-29 03:01:17,763 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 03:01:17,763 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 03:01:17,763 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 03:01:17,763 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5ac72ff2379990464c5f55660be1e08b12557a61aceeef8401296ef66be035fc Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-29 03:01:18,033 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 03:01:18,048 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 03:01:18,051 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 03:01:18,053 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 03:01:18,053 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 03:01:18,054 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_79-equ_racefree.i [2023-08-29 03:01:19,278 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 03:01:19,559 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 03:01:19,560 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_79-equ_racefree.i [2023-08-29 03:01:19,579 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/334413fc8/bcddb6a4761b450ca2ccf6685b75a789/FLAGb51027e06 [2023-08-29 03:01:19,601 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/334413fc8/bcddb6a4761b450ca2ccf6685b75a789 [2023-08-29 03:01:19,603 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 03:01:19,605 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 03:01:19,607 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 03:01:19,607 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 03:01:19,609 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 03:01:19,610 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 03:01:19" (1/1) ... [2023-08-29 03:01:19,611 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58e29d3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:01:19, skipping insertion in model container [2023-08-29 03:01:19,611 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 03:01:19" (1/1) ... [2023-08-29 03:01:19,617 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 03:01:19,669 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 03:01:20,053 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_79-equ_racefree.i[47038,47051] [2023-08-29 03:01:20,086 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 03:01:20,095 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 03:01:20,137 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_79-equ_racefree.i[47038,47051] [2023-08-29 03:01:20,164 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 03:01:20,208 INFO L208 MainTranslator]: Completed translation [2023-08-29 03:01:20,209 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:01:20 WrapperNode [2023-08-29 03:01:20,209 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 03:01:20,210 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 03:01:20,210 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 03:01:20,210 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 03:01:20,215 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:01:20" (1/1) ... [2023-08-29 03:01:20,230 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:01:20" (1/1) ... [2023-08-29 03:01:20,262 INFO L138 Inliner]: procedures = 271, calls = 56, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 267 [2023-08-29 03:01:20,262 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 03:01:20,263 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 03:01:20,263 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 03:01:20,263 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 03:01:20,275 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:01:20" (1/1) ... [2023-08-29 03:01:20,275 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:01:20" (1/1) ... [2023-08-29 03:01:20,280 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:01:20" (1/1) ... [2023-08-29 03:01:20,280 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:01:20" (1/1) ... [2023-08-29 03:01:20,315 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:01:20" (1/1) ... [2023-08-29 03:01:20,333 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:01:20" (1/1) ... [2023-08-29 03:01:20,335 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:01:20" (1/1) ... [2023-08-29 03:01:20,337 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:01:20" (1/1) ... [2023-08-29 03:01:20,340 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 03:01:20,344 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 03:01:20,344 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 03:01:20,344 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 03:01:20,344 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:01:20" (1/1) ... [2023-08-29 03:01:20,348 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 03:01:20,367 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 03:01:20,381 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 03:01:20,383 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 03:01:20,409 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 03:01:20,410 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 03:01:20,410 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-29 03:01:20,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-29 03:01:20,410 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-29 03:01:20,410 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-29 03:01:20,410 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-29 03:01:20,411 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-29 03:01:20,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-29 03:01:20,411 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 03:01:20,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 03:01:20,412 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 03:01:20,549 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 03:01:20,552 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 03:01:21,003 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 03:01:21,013 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 03:01:21,013 INFO L302 CfgBuilder]: Removed 22 assume(true) statements. [2023-08-29 03:01:21,015 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 03:01:21 BoogieIcfgContainer [2023-08-29 03:01:21,016 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 03:01:21,025 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 03:01:21,025 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 03:01:21,028 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 03:01:21,028 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 03:01:19" (1/3) ... [2023-08-29 03:01:21,029 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d03305d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 03:01:21, skipping insertion in model container [2023-08-29 03:01:21,029 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 03:01:20" (2/3) ... [2023-08-29 03:01:21,030 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d03305d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 03:01:21, skipping insertion in model container [2023-08-29 03:01:21,030 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 03:01:21" (3/3) ... [2023-08-29 03:01:21,031 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_79-equ_racefree.i [2023-08-29 03:01:21,038 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-29 03:01:21,046 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 03:01:21,047 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2023-08-29 03:01:21,047 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 03:01:21,129 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-29 03:01:21,160 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 247 places, 273 transitions, 554 flow [2023-08-29 03:01:21,273 INFO L130 PetriNetUnfolder]: 43/382 cut-off events. [2023-08-29 03:01:21,274 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-29 03:01:21,282 INFO L83 FinitePrefix]: Finished finitePrefix Result has 388 conditions, 382 events. 43/382 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1513 event pairs, 0 based on Foata normal form. 0/319 useless extension candidates. Maximal degree in co-relation 204. Up to 8 conditions per place. [2023-08-29 03:01:21,283 INFO L82 GeneralOperation]: Start removeDead. Operand has 247 places, 273 transitions, 554 flow [2023-08-29 03:01:21,294 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 246 places, 271 transitions, 550 flow [2023-08-29 03:01:21,298 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 03:01:21,311 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 246 places, 271 transitions, 550 flow [2023-08-29 03:01:21,318 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 246 places, 271 transitions, 550 flow [2023-08-29 03:01:21,319 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 246 places, 271 transitions, 550 flow [2023-08-29 03:01:21,413 INFO L130 PetriNetUnfolder]: 42/380 cut-off events. [2023-08-29 03:01:21,413 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-29 03:01:21,418 INFO L83 FinitePrefix]: Finished finitePrefix Result has 386 conditions, 380 events. 42/380 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1539 event pairs, 0 based on Foata normal form. 0/318 useless extension candidates. Maximal degree in co-relation 204. Up to 8 conditions per place. [2023-08-29 03:01:21,428 INFO L119 LiptonReduction]: Number of co-enabled transitions 20700 [2023-08-29 03:01:28,323 INFO L134 LiptonReduction]: Checked pairs total: 113976 [2023-08-29 03:01:28,323 INFO L136 LiptonReduction]: Total number of compositions: 169 [2023-08-29 03:01:28,335 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 03:01:28,340 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;@6f3433f3, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 03:01:28,340 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2023-08-29 03:01:28,356 INFO L130 PetriNetUnfolder]: 15/84 cut-off events. [2023-08-29 03:01:28,357 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 03:01:28,357 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:01:28,358 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:01:28,358 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [t_funErr4ASSERT_VIOLATIONDATA_RACE, t_funErr1ASSERT_VIOLATIONDATA_RACE, t_funErr3ASSERT_VIOLATIONDATA_RACE, t_funErr4ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-08-29 03:01:28,362 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:01:28,364 INFO L85 PathProgramCache]: Analyzing trace with hash -218579595, now seen corresponding path program 1 times [2023-08-29 03:01:28,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:01:28,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025611318] [2023-08-29 03:01:28,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:01:28,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:01:28,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:01:28,542 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 03:01:28,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:01:28,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025611318] [2023-08-29 03:01:28,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2025611318] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:01:28,545 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:01:28,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 03:01:28,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786827677] [2023-08-29 03:01:28,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:01:28,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-29 03:01:28,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:01:28,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-29 03:01:28,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-29 03:01:28,573 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 245 out of 442 [2023-08-29 03:01:28,575 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 130 transitions, 268 flow. Second operand has 2 states, 2 states have (on average 247.0) internal successors, (494), 2 states have internal predecessors, (494), 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 03:01:28,576 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:01:28,576 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 245 of 442 [2023-08-29 03:01:28,576 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:01:28,788 INFO L130 PetriNetUnfolder]: 398/1540 cut-off events. [2023-08-29 03:01:28,789 INFO L131 PetriNetUnfolder]: For 3/4 co-relation queries the response was YES. [2023-08-29 03:01:28,791 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2324 conditions, 1540 events. 398/1540 cut-off events. For 3/4 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 10783 event pairs, 357 based on Foata normal form. 135/1533 useless extension candidates. Maximal degree in co-relation 2230. Up to 777 conditions per place. [2023-08-29 03:01:28,796 INFO L137 encePairwiseOnDemand]: 421/442 looper letters, 42 selfloop transitions, 0 changer transitions 0/109 dead transitions. [2023-08-29 03:01:28,796 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 109 transitions, 310 flow [2023-08-29 03:01:28,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-29 03:01:28,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-29 03:01:28,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 553 transitions. [2023-08-29 03:01:28,854 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6255656108597285 [2023-08-29 03:01:28,855 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 553 transitions. [2023-08-29 03:01:28,856 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 553 transitions. [2023-08-29 03:01:28,859 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:01:28,861 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 553 transitions. [2023-08-29 03:01:28,865 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 276.5) internal successors, (553), 2 states have internal predecessors, (553), 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 03:01:28,872 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 442.0) internal successors, (1326), 3 states have internal predecessors, (1326), 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 03:01:28,881 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 442.0) internal successors, (1326), 3 states have internal predecessors, (1326), 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 03:01:28,883 INFO L175 Difference]: Start difference. First operand has 109 places, 130 transitions, 268 flow. Second operand 2 states and 553 transitions. [2023-08-29 03:01:28,884 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 109 transitions, 310 flow [2023-08-29 03:01:28,886 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 109 transitions, 310 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 03:01:28,889 INFO L231 Difference]: Finished difference. Result has 110 places, 109 transitions, 226 flow [2023-08-29 03:01:28,890 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=442, PETRI_DIFFERENCE_MINUEND_FLOW=226, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=226, PETRI_PLACES=110, PETRI_TRANSITIONS=109} [2023-08-29 03:01:28,920 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, 1 predicate places. [2023-08-29 03:01:28,921 INFO L495 AbstractCegarLoop]: Abstraction has has 110 places, 109 transitions, 226 flow [2023-08-29 03:01:28,921 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 247.0) internal successors, (494), 2 states have internal predecessors, (494), 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 03:01:28,921 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:01:28,921 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:01:28,922 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-29 03:01:28,922 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [t_funErr4ASSERT_VIOLATIONDATA_RACE, t_funErr1ASSERT_VIOLATIONDATA_RACE, t_funErr3ASSERT_VIOLATIONDATA_RACE, t_funErr4ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-08-29 03:01:28,922 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:01:28,923 INFO L85 PathProgramCache]: Analyzing trace with hash 1952686399, now seen corresponding path program 1 times [2023-08-29 03:01:28,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:01:28,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648873536] [2023-08-29 03:01:28,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:01:28,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:01:28,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:01:29,467 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 03:01:29,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:01:29,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648873536] [2023-08-29 03:01:29,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1648873536] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:01:29,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:01:29,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 03:01:29,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248590886] [2023-08-29 03:01:29,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:01:29,475 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 03:01:29,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:01:29,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 03:01:29,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 03:01:29,822 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 206 out of 442 [2023-08-29 03:01:29,823 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 109 transitions, 226 flow. Second operand has 6 states, 6 states have (on average 207.5) internal successors, (1245), 6 states have internal predecessors, (1245), 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 03:01:29,823 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:01:29,823 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 206 of 442 [2023-08-29 03:01:29,824 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:01:30,347 INFO L130 PetriNetUnfolder]: 1393/3610 cut-off events. [2023-08-29 03:01:30,347 INFO L131 PetriNetUnfolder]: For 6/10 co-relation queries the response was YES. [2023-08-29 03:01:30,351 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6481 conditions, 3610 events. 1393/3610 cut-off events. For 6/10 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 25631 event pairs, 525 based on Foata normal form. 1/3355 useless extension candidates. Maximal degree in co-relation 6477. Up to 1930 conditions per place. [2023-08-29 03:01:30,361 INFO L137 encePairwiseOnDemand]: 414/442 looper letters, 141 selfloop transitions, 49 changer transitions 0/227 dead transitions. [2023-08-29 03:01:30,361 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 227 transitions, 845 flow [2023-08-29 03:01:30,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 03:01:30,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 03:01:30,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1429 transitions. [2023-08-29 03:01:30,365 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5388386123680241 [2023-08-29 03:01:30,365 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1429 transitions. [2023-08-29 03:01:30,366 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1429 transitions. [2023-08-29 03:01:30,366 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:01:30,366 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1429 transitions. [2023-08-29 03:01:30,370 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 238.16666666666666) internal successors, (1429), 6 states have internal predecessors, (1429), 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 03:01:30,374 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 442.0) internal successors, (3094), 7 states have internal predecessors, (3094), 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 03:01:30,375 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 442.0) internal successors, (3094), 7 states have internal predecessors, (3094), 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 03:01:30,375 INFO L175 Difference]: Start difference. First operand has 110 places, 109 transitions, 226 flow. Second operand 6 states and 1429 transitions. [2023-08-29 03:01:30,376 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 227 transitions, 845 flow [2023-08-29 03:01:30,378 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 227 transitions, 845 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 03:01:30,380 INFO L231 Difference]: Finished difference. Result has 120 places, 155 transitions, 564 flow [2023-08-29 03:01:30,381 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=442, PETRI_DIFFERENCE_MINUEND_FLOW=226, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=564, PETRI_PLACES=120, PETRI_TRANSITIONS=155} [2023-08-29 03:01:30,381 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, 11 predicate places. [2023-08-29 03:01:30,382 INFO L495 AbstractCegarLoop]: Abstraction has has 120 places, 155 transitions, 564 flow [2023-08-29 03:01:30,383 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 207.5) internal successors, (1245), 6 states have internal predecessors, (1245), 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 03:01:30,383 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:01:30,383 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:01:30,383 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-29 03:01:30,383 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr4ASSERT_VIOLATIONDATA_RACE === [t_funErr4ASSERT_VIOLATIONDATA_RACE, t_funErr1ASSERT_VIOLATIONDATA_RACE, t_funErr3ASSERT_VIOLATIONDATA_RACE, t_funErr4ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-08-29 03:01:30,384 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:01:30,384 INFO L85 PathProgramCache]: Analyzing trace with hash 678287048, now seen corresponding path program 1 times [2023-08-29 03:01:30,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:01:30,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176039504] [2023-08-29 03:01:30,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:01:30,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:01:30,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:01:30,623 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 03:01:30,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:01:30,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176039504] [2023-08-29 03:01:30,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [176039504] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:01:30,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:01:30,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 03:01:30,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523645751] [2023-08-29 03:01:30,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:01:30,625 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 03:01:30,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:01:30,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 03:01:30,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 03:01:30,986 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 208 out of 442 [2023-08-29 03:01:30,987 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 155 transitions, 564 flow. Second operand has 6 states, 6 states have (on average 209.83333333333334) internal successors, (1259), 6 states have internal predecessors, (1259), 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 03:01:30,988 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:01:30,988 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 208 of 442 [2023-08-29 03:01:30,988 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:01:31,641 INFO L130 PetriNetUnfolder]: 1837/4686 cut-off events. [2023-08-29 03:01:31,641 INFO L131 PetriNetUnfolder]: For 911/980 co-relation queries the response was YES. [2023-08-29 03:01:31,650 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10119 conditions, 4686 events. 1837/4686 cut-off events. For 911/980 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 34494 event pairs, 592 based on Foata normal form. 38/4381 useless extension candidates. Maximal degree in co-relation 10110. Up to 2492 conditions per place. [2023-08-29 03:01:31,665 INFO L137 encePairwiseOnDemand]: 414/442 looper letters, 199 selfloop transitions, 65 changer transitions 0/311 dead transitions. [2023-08-29 03:01:31,666 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 311 transitions, 1539 flow [2023-08-29 03:01:31,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 03:01:31,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 03:01:31,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1455 transitions. [2023-08-29 03:01:31,670 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5486425339366516 [2023-08-29 03:01:31,670 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1455 transitions. [2023-08-29 03:01:31,670 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1455 transitions. [2023-08-29 03:01:31,671 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:01:31,671 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1455 transitions. [2023-08-29 03:01:31,675 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 242.5) internal successors, (1455), 6 states have internal predecessors, (1455), 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 03:01:31,679 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 442.0) internal successors, (3094), 7 states have internal predecessors, (3094), 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 03:01:31,680 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 442.0) internal successors, (3094), 7 states have internal predecessors, (3094), 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 03:01:31,680 INFO L175 Difference]: Start difference. First operand has 120 places, 155 transitions, 564 flow. Second operand 6 states and 1455 transitions. [2023-08-29 03:01:31,681 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 311 transitions, 1539 flow [2023-08-29 03:01:31,688 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 311 transitions, 1539 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 03:01:31,692 INFO L231 Difference]: Finished difference. Result has 130 places, 217 transitions, 1102 flow [2023-08-29 03:01:31,692 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=442, PETRI_DIFFERENCE_MINUEND_FLOW=564, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=155, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=120, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1102, PETRI_PLACES=130, PETRI_TRANSITIONS=217} [2023-08-29 03:01:31,693 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, 21 predicate places. [2023-08-29 03:01:31,693 INFO L495 AbstractCegarLoop]: Abstraction has has 130 places, 217 transitions, 1102 flow [2023-08-29 03:01:31,694 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 209.83333333333334) internal successors, (1259), 6 states have internal predecessors, (1259), 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 03:01:31,694 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:01:31,694 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:01:31,694 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-29 03:01:31,694 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [t_funErr4ASSERT_VIOLATIONDATA_RACE, t_funErr1ASSERT_VIOLATIONDATA_RACE, t_funErr3ASSERT_VIOLATIONDATA_RACE, t_funErr4ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-08-29 03:01:31,695 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:01:31,695 INFO L85 PathProgramCache]: Analyzing trace with hash 57878911, now seen corresponding path program 1 times [2023-08-29 03:01:31,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:01:31,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175316770] [2023-08-29 03:01:31,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:01:31,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:01:31,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:01:31,938 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 03:01:31,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:01:31,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175316770] [2023-08-29 03:01:31,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175316770] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:01:31,939 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:01:31,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 03:01:31,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990391781] [2023-08-29 03:01:31,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:01:31,940 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 03:01:31,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:01:31,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 03:01:31,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 03:01:32,147 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 442 [2023-08-29 03:01:32,149 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 217 transitions, 1102 flow. Second operand has 6 states, 6 states have (on average 192.5) internal successors, (1155), 6 states have internal predecessors, (1155), 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 03:01:32,149 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:01:32,149 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 442 [2023-08-29 03:01:32,149 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:01:33,221 INFO L130 PetriNetUnfolder]: 2933/6641 cut-off events. [2023-08-29 03:01:33,222 INFO L131 PetriNetUnfolder]: For 4528/4596 co-relation queries the response was YES. [2023-08-29 03:01:33,236 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18545 conditions, 6641 events. 2933/6641 cut-off events. For 4528/4596 co-relation queries the response was YES. Maximal size of possible extension queue 128. Compared 47074 event pairs, 1633 based on Foata normal form. 0/6287 useless extension candidates. Maximal degree in co-relation 18531. Up to 5627 conditions per place. [2023-08-29 03:01:33,262 INFO L137 encePairwiseOnDemand]: 415/442 looper letters, 249 selfloop transitions, 115 changer transitions 0/388 dead transitions. [2023-08-29 03:01:33,262 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 388 transitions, 2510 flow [2023-08-29 03:01:33,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 03:01:33,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 03:01:33,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1376 transitions. [2023-08-29 03:01:33,266 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5188536953242836 [2023-08-29 03:01:33,266 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1376 transitions. [2023-08-29 03:01:33,267 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1376 transitions. [2023-08-29 03:01:33,267 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:01:33,267 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1376 transitions. [2023-08-29 03:01:33,270 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 229.33333333333334) internal successors, (1376), 6 states have internal predecessors, (1376), 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 03:01:33,274 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 442.0) internal successors, (3094), 7 states have internal predecessors, (3094), 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 03:01:33,275 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 442.0) internal successors, (3094), 7 states have internal predecessors, (3094), 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 03:01:33,275 INFO L175 Difference]: Start difference. First operand has 130 places, 217 transitions, 1102 flow. Second operand 6 states and 1376 transitions. [2023-08-29 03:01:33,275 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 388 transitions, 2510 flow [2023-08-29 03:01:33,353 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 388 transitions, 2510 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 03:01:33,358 INFO L231 Difference]: Finished difference. Result has 140 places, 322 transitions, 2154 flow [2023-08-29 03:01:33,359 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=442, PETRI_DIFFERENCE_MINUEND_FLOW=1102, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=217, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=168, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2154, PETRI_PLACES=140, PETRI_TRANSITIONS=322} [2023-08-29 03:01:33,359 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, 31 predicate places. [2023-08-29 03:01:33,360 INFO L495 AbstractCegarLoop]: Abstraction has has 140 places, 322 transitions, 2154 flow [2023-08-29 03:01:33,360 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 192.5) internal successors, (1155), 6 states have internal predecessors, (1155), 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 03:01:33,360 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:01:33,364 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 03:01:33,364 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-29 03:01:33,364 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [t_funErr4ASSERT_VIOLATIONDATA_RACE, t_funErr1ASSERT_VIOLATIONDATA_RACE, t_funErr3ASSERT_VIOLATIONDATA_RACE, t_funErr4ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-08-29 03:01:33,364 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:01:33,365 INFO L85 PathProgramCache]: Analyzing trace with hash -594224925, now seen corresponding path program 1 times [2023-08-29 03:01:33,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:01:33,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395545213] [2023-08-29 03:01:33,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:01:33,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:01:33,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:01:33,678 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 03:01:33,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:01:33,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395545213] [2023-08-29 03:01:33,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1395545213] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:01:33,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:01:33,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 03:01:33,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402210475] [2023-08-29 03:01:33,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:01:33,680 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 03:01:33,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:01:33,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 03:01:33,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 03:01:34,037 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 218 out of 442 [2023-08-29 03:01:34,039 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 322 transitions, 2154 flow. Second operand has 6 states, 6 states have (on average 220.16666666666666) internal successors, (1321), 6 states have internal predecessors, (1321), 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 03:01:34,039 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:01:34,039 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 218 of 442 [2023-08-29 03:01:34,039 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:01:34,839 INFO L130 PetriNetUnfolder]: 1967/5146 cut-off events. [2023-08-29 03:01:34,840 INFO L131 PetriNetUnfolder]: For 5100/5201 co-relation queries the response was YES. [2023-08-29 03:01:34,857 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15158 conditions, 5146 events. 1967/5146 cut-off events. For 5100/5201 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 39298 event pairs, 745 based on Foata normal form. 26/4933 useless extension candidates. Maximal degree in co-relation 15139. Up to 3218 conditions per place. [2023-08-29 03:01:34,879 INFO L137 encePairwiseOnDemand]: 427/442 looper letters, 235 selfloop transitions, 77 changer transitions 36/472 dead transitions. [2023-08-29 03:01:34,879 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 472 transitions, 3569 flow [2023-08-29 03:01:34,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 03:01:34,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 03:01:34,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1473 transitions. [2023-08-29 03:01:34,883 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5554298642533937 [2023-08-29 03:01:34,883 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1473 transitions. [2023-08-29 03:01:34,883 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1473 transitions. [2023-08-29 03:01:34,884 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:01:34,884 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1473 transitions. [2023-08-29 03:01:34,887 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 245.5) internal successors, (1473), 6 states have internal predecessors, (1473), 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 03:01:34,891 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 442.0) internal successors, (3094), 7 states have internal predecessors, (3094), 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 03:01:34,892 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 442.0) internal successors, (3094), 7 states have internal predecessors, (3094), 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 03:01:34,892 INFO L175 Difference]: Start difference. First operand has 140 places, 322 transitions, 2154 flow. Second operand 6 states and 1473 transitions. [2023-08-29 03:01:34,892 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 472 transitions, 3569 flow [2023-08-29 03:01:34,912 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 472 transitions, 3435 flow, removed 67 selfloop flow, removed 0 redundant places. [2023-08-29 03:01:34,920 INFO L231 Difference]: Finished difference. Result has 150 places, 396 transitions, 2887 flow [2023-08-29 03:01:34,920 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=442, PETRI_DIFFERENCE_MINUEND_FLOW=2020, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=322, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=299, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2887, PETRI_PLACES=150, PETRI_TRANSITIONS=396} [2023-08-29 03:01:34,921 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, 41 predicate places. [2023-08-29 03:01:34,921 INFO L495 AbstractCegarLoop]: Abstraction has has 150 places, 396 transitions, 2887 flow [2023-08-29 03:01:34,922 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 220.16666666666666) internal successors, (1321), 6 states have internal predecessors, (1321), 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 03:01:34,922 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:01:34,922 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:01:34,922 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-29 03:01:34,922 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [t_funErr4ASSERT_VIOLATIONDATA_RACE, t_funErr1ASSERT_VIOLATIONDATA_RACE, t_funErr3ASSERT_VIOLATIONDATA_RACE, t_funErr4ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-08-29 03:01:34,923 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:01:34,923 INFO L85 PathProgramCache]: Analyzing trace with hash 576984675, now seen corresponding path program 1 times [2023-08-29 03:01:34,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:01:34,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159238047] [2023-08-29 03:01:34,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:01:34,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:01:34,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:01:35,128 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 03:01:35,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:01:35,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159238047] [2023-08-29 03:01:35,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1159238047] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:01:35,129 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:01:35,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 03:01:35,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024900937] [2023-08-29 03:01:35,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:01:35,130 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 03:01:35,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:01:35,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 03:01:35,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 03:01:35,376 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 192 out of 442 [2023-08-29 03:01:35,378 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 396 transitions, 2887 flow. Second operand has 6 states, 6 states have (on average 194.83333333333334) internal successors, (1169), 6 states have internal predecessors, (1169), 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 03:01:35,378 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:01:35,378 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 192 of 442 [2023-08-29 03:01:35,378 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:01:36,566 INFO L130 PetriNetUnfolder]: 3275/7330 cut-off events. [2023-08-29 03:01:36,566 INFO L131 PetriNetUnfolder]: For 9842/9940 co-relation queries the response was YES. [2023-08-29 03:01:36,591 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24802 conditions, 7330 events. 3275/7330 cut-off events. For 9842/9940 co-relation queries the response was YES. Maximal size of possible extension queue 139. Compared 52705 event pairs, 1553 based on Foata normal form. 0/7006 useless extension candidates. Maximal degree in co-relation 24778. Up to 6168 conditions per place. [2023-08-29 03:01:36,617 INFO L137 encePairwiseOnDemand]: 411/442 looper letters, 428 selfloop transitions, 163 changer transitions 0/616 dead transitions. [2023-08-29 03:01:36,617 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 154 places, 616 transitions, 5069 flow [2023-08-29 03:01:36,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 03:01:36,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 03:01:36,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1418 transitions. [2023-08-29 03:01:36,624 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5346907993966817 [2023-08-29 03:01:36,624 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1418 transitions. [2023-08-29 03:01:36,624 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1418 transitions. [2023-08-29 03:01:36,625 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:01:36,625 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1418 transitions. [2023-08-29 03:01:36,628 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 236.33333333333334) internal successors, (1418), 6 states have internal predecessors, (1418), 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 03:01:36,632 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 442.0) internal successors, (3094), 7 states have internal predecessors, (3094), 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 03:01:36,633 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 442.0) internal successors, (3094), 7 states have internal predecessors, (3094), 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 03:01:36,633 INFO L175 Difference]: Start difference. First operand has 150 places, 396 transitions, 2887 flow. Second operand 6 states and 1418 transitions. [2023-08-29 03:01:36,633 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 154 places, 616 transitions, 5069 flow [2023-08-29 03:01:36,682 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 616 transitions, 5069 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 03:01:36,690 INFO L231 Difference]: Finished difference. Result has 159 places, 529 transitions, 4399 flow [2023-08-29 03:01:36,691 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=442, PETRI_DIFFERENCE_MINUEND_FLOW=2887, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=396, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=56, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=311, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=4399, PETRI_PLACES=159, PETRI_TRANSITIONS=529} [2023-08-29 03:01:36,694 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, 50 predicate places. [2023-08-29 03:01:36,694 INFO L495 AbstractCegarLoop]: Abstraction has has 159 places, 529 transitions, 4399 flow [2023-08-29 03:01:36,694 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 194.83333333333334) internal successors, (1169), 6 states have internal predecessors, (1169), 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 03:01:36,695 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:01:36,695 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] [2023-08-29 03:01:36,696 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-29 03:01:36,696 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [t_funErr4ASSERT_VIOLATIONDATA_RACE, t_funErr1ASSERT_VIOLATIONDATA_RACE, t_funErr3ASSERT_VIOLATIONDATA_RACE, t_funErr4ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-08-29 03:01:36,696 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:01:36,697 INFO L85 PathProgramCache]: Analyzing trace with hash 577770874, now seen corresponding path program 1 times [2023-08-29 03:01:36,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:01:36,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800788487] [2023-08-29 03:01:36,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:01:36,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:01:36,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:01:36,768 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-29 03:01:36,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:01:36,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800788487] [2023-08-29 03:01:36,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [800788487] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:01:36,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:01:36,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-29 03:01:36,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273095915] [2023-08-29 03:01:36,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:01:36,771 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 03:01:36,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:01:36,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 03:01:36,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 03:01:36,795 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 228 out of 442 [2023-08-29 03:01:36,796 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 529 transitions, 4399 flow. Second operand has 3 states, 3 states have (on average 232.33333333333334) internal successors, (697), 3 states have internal predecessors, (697), 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 03:01:36,796 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:01:36,796 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 228 of 442 [2023-08-29 03:01:36,796 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:01:37,148 INFO L130 PetriNetUnfolder]: 520/2101 cut-off events. [2023-08-29 03:01:37,149 INFO L131 PetriNetUnfolder]: For 3308/3346 co-relation queries the response was YES. [2023-08-29 03:01:37,157 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6959 conditions, 2101 events. 520/2101 cut-off events. For 3308/3346 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 15536 event pairs, 106 based on Foata normal form. 66/2025 useless extension candidates. Maximal degree in co-relation 6930. Up to 475 conditions per place. [2023-08-29 03:01:37,162 INFO L137 encePairwiseOnDemand]: 428/442 looper letters, 78 selfloop transitions, 15 changer transitions 7/221 dead transitions. [2023-08-29 03:01:37,163 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 154 places, 221 transitions, 1847 flow [2023-08-29 03:01:37,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 03:01:37,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 03:01:37,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 766 transitions. [2023-08-29 03:01:37,165 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5776772247360482 [2023-08-29 03:01:37,165 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 766 transitions. [2023-08-29 03:01:37,165 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 766 transitions. [2023-08-29 03:01:37,166 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:01:37,166 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 766 transitions. [2023-08-29 03:01:37,168 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 255.33333333333334) internal successors, (766), 3 states have internal predecessors, (766), 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 03:01:37,170 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 442.0) internal successors, (1768), 4 states have internal predecessors, (1768), 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 03:01:37,170 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 442.0) internal successors, (1768), 4 states have internal predecessors, (1768), 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 03:01:37,170 INFO L175 Difference]: Start difference. First operand has 159 places, 529 transitions, 4399 flow. Second operand 3 states and 766 transitions. [2023-08-29 03:01:37,170 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 154 places, 221 transitions, 1847 flow [2023-08-29 03:01:37,192 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 221 transitions, 1393 flow, removed 147 selfloop flow, removed 24 redundant places. [2023-08-29 03:01:37,195 INFO L231 Difference]: Finished difference. Result has 131 places, 181 transitions, 1022 flow [2023-08-29 03:01:37,195 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=442, PETRI_DIFFERENCE_MINUEND_FLOW=947, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=175, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=160, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1022, PETRI_PLACES=131, PETRI_TRANSITIONS=181} [2023-08-29 03:01:37,197 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, 22 predicate places. [2023-08-29 03:01:37,197 INFO L495 AbstractCegarLoop]: Abstraction has has 131 places, 181 transitions, 1022 flow [2023-08-29 03:01:37,198 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 232.33333333333334) internal successors, (697), 3 states have internal predecessors, (697), 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 03:01:37,198 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:01:37,198 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] [2023-08-29 03:01:37,198 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-29 03:01:37,198 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [t_funErr4ASSERT_VIOLATIONDATA_RACE, t_funErr1ASSERT_VIOLATIONDATA_RACE, t_funErr3ASSERT_VIOLATIONDATA_RACE, t_funErr4ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-08-29 03:01:37,199 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:01:37,199 INFO L85 PathProgramCache]: Analyzing trace with hash -785159667, now seen corresponding path program 1 times [2023-08-29 03:01:37,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:01:37,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120639068] [2023-08-29 03:01:37,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:01:37,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:01:37,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:01:37,485 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 03:01:37,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:01:37,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120639068] [2023-08-29 03:01:37,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [120639068] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:01:37,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:01:37,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 03:01:37,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469687675] [2023-08-29 03:01:37,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:01:37,487 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 03:01:37,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:01:37,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 03:01:37,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 03:01:37,661 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 442 [2023-08-29 03:01:37,662 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 181 transitions, 1022 flow. Second operand has 6 states, 6 states have (on average 194.66666666666666) internal successors, (1168), 6 states have internal predecessors, (1168), 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 03:01:37,662 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:01:37,662 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 442 [2023-08-29 03:01:37,662 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:01:38,045 INFO L130 PetriNetUnfolder]: 1253/3257 cut-off events. [2023-08-29 03:01:38,046 INFO L131 PetriNetUnfolder]: For 3396/3406 co-relation queries the response was YES. [2023-08-29 03:01:38,051 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10121 conditions, 3257 events. 1253/3257 cut-off events. For 3396/3406 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 21850 event pairs, 931 based on Foata normal form. 0/3000 useless extension candidates. Maximal degree in co-relation 10103. Up to 2883 conditions per place. [2023-08-29 03:01:38,058 INFO L137 encePairwiseOnDemand]: 436/442 looper letters, 154 selfloop transitions, 5 changer transitions 21/196 dead transitions. [2023-08-29 03:01:38,058 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 196 transitions, 1422 flow [2023-08-29 03:01:38,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 03:01:38,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 03:01:38,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1240 transitions. [2023-08-29 03:01:38,061 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4675716440422323 [2023-08-29 03:01:38,062 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1240 transitions. [2023-08-29 03:01:38,062 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1240 transitions. [2023-08-29 03:01:38,062 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:01:38,063 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1240 transitions. [2023-08-29 03:01:38,065 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 206.66666666666666) internal successors, (1240), 6 states have internal predecessors, (1240), 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 03:01:38,069 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 442.0) internal successors, (3094), 7 states have internal predecessors, (3094), 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 03:01:38,070 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 442.0) internal successors, (3094), 7 states have internal predecessors, (3094), 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 03:01:38,070 INFO L175 Difference]: Start difference. First operand has 131 places, 181 transitions, 1022 flow. Second operand 6 states and 1240 transitions. [2023-08-29 03:01:38,070 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 196 transitions, 1422 flow [2023-08-29 03:01:38,093 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 196 transitions, 1361 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-29 03:01:38,095 INFO L231 Difference]: Finished difference. Result has 132 places, 167 transitions, 929 flow [2023-08-29 03:01:38,096 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=442, PETRI_DIFFERENCE_MINUEND_FLOW=963, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=180, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=175, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=929, PETRI_PLACES=132, PETRI_TRANSITIONS=167} [2023-08-29 03:01:38,096 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, 23 predicate places. [2023-08-29 03:01:38,096 INFO L495 AbstractCegarLoop]: Abstraction has has 132 places, 167 transitions, 929 flow [2023-08-29 03:01:38,097 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 194.66666666666666) internal successors, (1168), 6 states have internal predecessors, (1168), 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 03:01:38,097 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:01:38,097 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] [2023-08-29 03:01:38,097 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-29 03:01:38,097 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [t_funErr4ASSERT_VIOLATIONDATA_RACE, t_funErr1ASSERT_VIOLATIONDATA_RACE, t_funErr3ASSERT_VIOLATIONDATA_RACE, t_funErr4ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-08-29 03:01:38,098 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:01:38,098 INFO L85 PathProgramCache]: Analyzing trace with hash -1631164654, now seen corresponding path program 1 times [2023-08-29 03:01:38,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:01:38,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276604848] [2023-08-29 03:01:38,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:01:38,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:01:38,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:01:38,181 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 03:01:38,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:01:38,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276604848] [2023-08-29 03:01:38,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1276604848] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-29 03:01:38,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2124007664] [2023-08-29 03:01:38,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:01:38,185 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 03:01:38,185 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 03:01:38,192 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-29 03:01:38,217 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-08-29 03:01:38,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:01:38,306 INFO L263 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 3 conjunts are in the unsatisfiable core [2023-08-29 03:01:38,316 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 03:01:39,237 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 03:01:39,237 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-29 03:01:39,255 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 03:01:39,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2124007664] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-29 03:01:39,255 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-29 03:01:39,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2023-08-29 03:01:39,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732949423] [2023-08-29 03:01:39,256 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-29 03:01:39,256 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 03:01:39,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:01:39,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 03:01:39,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 03:01:39,271 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 240 out of 442 [2023-08-29 03:01:39,273 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 167 transitions, 929 flow. Second operand has 6 states, 6 states have (on average 243.66666666666666) internal successors, (1462), 6 states have internal predecessors, (1462), 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 03:01:39,273 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:01:39,273 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 240 of 442 [2023-08-29 03:01:39,273 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:01:39,315 INFO L130 PetriNetUnfolder]: 26/134 cut-off events. [2023-08-29 03:01:39,315 INFO L131 PetriNetUnfolder]: For 51/51 co-relation queries the response was YES. [2023-08-29 03:01:39,316 INFO L83 FinitePrefix]: Finished finitePrefix Result has 317 conditions, 134 events. 26/134 cut-off events. For 51/51 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 257 event pairs, 11 based on Foata normal form. 0/134 useless extension candidates. Maximal degree in co-relation 299. Up to 54 conditions per place. [2023-08-29 03:01:39,316 INFO L137 encePairwiseOnDemand]: 439/442 looper letters, 23 selfloop transitions, 2 changer transitions 7/53 dead transitions. [2023-08-29 03:01:39,316 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 53 transitions, 259 flow [2023-08-29 03:01:39,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-29 03:01:39,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-29 03:01:39,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 993 transitions. [2023-08-29 03:01:39,319 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5616515837104072 [2023-08-29 03:01:39,320 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 993 transitions. [2023-08-29 03:01:39,320 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 993 transitions. [2023-08-29 03:01:39,320 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:01:39,321 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 993 transitions. [2023-08-29 03:01:39,323 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 248.25) internal successors, (993), 4 states have internal predecessors, (993), 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 03:01:39,325 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 442.0) internal successors, (2210), 5 states have internal predecessors, (2210), 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 03:01:39,326 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 442.0) internal successors, (2210), 5 states have internal predecessors, (2210), 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 03:01:39,326 INFO L175 Difference]: Start difference. First operand has 132 places, 167 transitions, 929 flow. Second operand 4 states and 993 transitions. [2023-08-29 03:01:39,326 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 53 transitions, 259 flow [2023-08-29 03:01:39,327 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 53 transitions, 173 flow, removed 16 selfloop flow, removed 16 redundant places. [2023-08-29 03:01:39,328 INFO L231 Difference]: Finished difference. Result has 51 places, 35 transitions, 79 flow [2023-08-29 03:01:39,328 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=442, PETRI_DIFFERENCE_MINUEND_FLOW=83, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=79, PETRI_PLACES=51, PETRI_TRANSITIONS=35} [2023-08-29 03:01:39,329 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, -58 predicate places. [2023-08-29 03:01:39,329 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 35 transitions, 79 flow [2023-08-29 03:01:39,330 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 243.66666666666666) internal successors, (1462), 6 states have internal predecessors, (1462), 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 03:01:39,330 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:01:39,330 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] [2023-08-29 03:01:39,338 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-08-29 03:01:39,535 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 03:01:39,536 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [t_funErr4ASSERT_VIOLATIONDATA_RACE, t_funErr1ASSERT_VIOLATIONDATA_RACE, t_funErr3ASSERT_VIOLATIONDATA_RACE, t_funErr4ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-08-29 03:01:39,536 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:01:39,536 INFO L85 PathProgramCache]: Analyzing trace with hash -1701668079, now seen corresponding path program 1 times [2023-08-29 03:01:39,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:01:39,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846583317] [2023-08-29 03:01:39,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:01:39,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:01:39,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:01:39,855 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 03:01:39,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:01:39,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846583317] [2023-08-29 03:01:39,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [846583317] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:01:39,856 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:01:39,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 03:01:39,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035567881] [2023-08-29 03:01:39,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:01:39,857 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 03:01:39,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:01:39,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 03:01:39,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 03:01:40,106 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 192 out of 442 [2023-08-29 03:01:40,108 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 35 transitions, 79 flow. Second operand has 6 states, 6 states have (on average 197.0) internal successors, (1182), 6 states have internal predecessors, (1182), 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 03:01:40,108 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:01:40,108 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 192 of 442 [2023-08-29 03:01:40,108 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:01:40,156 INFO L130 PetriNetUnfolder]: 52/146 cut-off events. [2023-08-29 03:01:40,157 INFO L131 PetriNetUnfolder]: For 26/26 co-relation queries the response was YES. [2023-08-29 03:01:40,157 INFO L83 FinitePrefix]: Finished finitePrefix Result has 323 conditions, 146 events. 52/146 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 239 event pairs, 44 based on Foata normal form. 3/149 useless extension candidates. Maximal degree in co-relation 313. Up to 116 conditions per place. [2023-08-29 03:01:40,157 INFO L137 encePairwiseOnDemand]: 437/442 looper letters, 0 selfloop transitions, 0 changer transitions 42/42 dead transitions. [2023-08-29 03:01:40,157 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 42 transitions, 177 flow [2023-08-29 03:01:40,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 03:01:40,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 03:01:40,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1191 transitions. [2023-08-29 03:01:40,161 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4490950226244344 [2023-08-29 03:01:40,161 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1191 transitions. [2023-08-29 03:01:40,161 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1191 transitions. [2023-08-29 03:01:40,162 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:01:40,162 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1191 transitions. [2023-08-29 03:01:40,164 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 198.5) internal successors, (1191), 6 states have internal predecessors, (1191), 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 03:01:40,168 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 442.0) internal successors, (3094), 7 states have internal predecessors, (3094), 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 03:01:40,169 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 442.0) internal successors, (3094), 7 states have internal predecessors, (3094), 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 03:01:40,169 INFO L175 Difference]: Start difference. First operand has 51 places, 35 transitions, 79 flow. Second operand 6 states and 1191 transitions. [2023-08-29 03:01:40,169 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 42 transitions, 177 flow [2023-08-29 03:01:40,169 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 42 transitions, 170 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 03:01:40,170 INFO L231 Difference]: Finished difference. Result has 49 places, 0 transitions, 0 flow [2023-08-29 03:01:40,170 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=442, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=49, PETRI_TRANSITIONS=0} [2023-08-29 03:01:40,170 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, -60 predicate places. [2023-08-29 03:01:40,171 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 0 transitions, 0 flow [2023-08-29 03:01:40,171 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 197.0) internal successors, (1182), 6 states have internal predecessors, (1182), 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 03:01:40,174 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr4ASSERT_VIOLATIONDATA_RACE (15 of 16 remaining) [2023-08-29 03:01:40,174 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (14 of 16 remaining) [2023-08-29 03:01:40,174 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONDATA_RACE (13 of 16 remaining) [2023-08-29 03:01:40,174 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr4ASSERT_VIOLATIONDATA_RACE (12 of 16 remaining) [2023-08-29 03:01:40,174 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONDATA_RACE (11 of 16 remaining) [2023-08-29 03:01:40,175 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (10 of 16 remaining) [2023-08-29 03:01:40,175 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (9 of 16 remaining) [2023-08-29 03:01:40,175 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (8 of 16 remaining) [2023-08-29 03:01:40,175 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 16 remaining) [2023-08-29 03:01:40,175 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONDATA_RACE (6 of 16 remaining) [2023-08-29 03:01:40,175 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (5 of 16 remaining) [2023-08-29 03:01:40,176 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (4 of 16 remaining) [2023-08-29 03:01:40,176 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (3 of 16 remaining) [2023-08-29 03:01:40,176 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (2 of 16 remaining) [2023-08-29 03:01:40,176 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (1 of 16 remaining) [2023-08-29 03:01:40,176 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 16 remaining) [2023-08-29 03:01:40,176 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-29 03:01:40,177 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:01:40,178 INFO L307 ceAbstractionStarter]: Result for error location AllErrorsAtOnce was SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE (1/2) [2023-08-29 03:01:40,183 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 247 places, 273 transitions, 554 flow [2023-08-29 03:01:40,216 INFO L130 PetriNetUnfolder]: 43/382 cut-off events. [2023-08-29 03:01:40,216 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-29 03:01:40,218 INFO L83 FinitePrefix]: Finished finitePrefix Result has 388 conditions, 382 events. 43/382 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1513 event pairs, 0 based on Foata normal form. 0/319 useless extension candidates. Maximal degree in co-relation 204. Up to 8 conditions per place. [2023-08-29 03:01:40,218 INFO L82 GeneralOperation]: Start removeDead. Operand has 247 places, 273 transitions, 554 flow [2023-08-29 03:01:40,220 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 242 places, 266 transitions, 537 flow [2023-08-29 03:01:40,220 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 03:01:40,220 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 242 places, 266 transitions, 537 flow [2023-08-29 03:01:40,221 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 242 places, 266 transitions, 537 flow [2023-08-29 03:01:40,221 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 242 places, 266 transitions, 537 flow [2023-08-29 03:01:40,254 INFO L130 PetriNetUnfolder]: 41/375 cut-off events. [2023-08-29 03:01:40,254 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 03:01:40,256 INFO L83 FinitePrefix]: Finished finitePrefix Result has 380 conditions, 375 events. 41/375 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1481 event pairs, 0 based on Foata normal form. 0/313 useless extension candidates. Maximal degree in co-relation 204. Up to 8 conditions per place. [2023-08-29 03:01:40,265 INFO L119 LiptonReduction]: Number of co-enabled transitions 20700 [2023-08-29 03:01:45,136 INFO L134 LiptonReduction]: Checked pairs total: 102307 [2023-08-29 03:01:45,136 INFO L136 LiptonReduction]: Total number of compositions: 163 [2023-08-29 03:01:45,137 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-29 03:01:45,138 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;@6f3433f3, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 03:01:45,138 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-29 03:01:45,141 INFO L130 PetriNetUnfolder]: 6/32 cut-off events. [2023-08-29 03:01:45,142 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 03:01:45,142 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:01:45,142 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2023-08-29 03:01:45,142 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-29 03:01:45,142 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:01:45,142 INFO L85 PathProgramCache]: Analyzing trace with hash -1483016064, now seen corresponding path program 1 times [2023-08-29 03:01:45,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:01:45,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626952766] [2023-08-29 03:01:45,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:01:45,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:01:45,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-29 03:01:45,162 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-29 03:01:45,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-29 03:01:45,197 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-29 03:01:45,197 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-29 03:01:45,198 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-29 03:01:45,198 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-29 03:01:45,198 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-29 03:01:45,199 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (2/2) [2023-08-29 03:01:45,199 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-29 03:01:45,199 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-08-29 03:01:45,225 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-29 03:01:45,228 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 328 places, 365 transitions, 748 flow [2023-08-29 03:01:45,291 INFO L130 PetriNetUnfolder]: 72/613 cut-off events. [2023-08-29 03:01:45,291 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2023-08-29 03:01:45,297 INFO L83 FinitePrefix]: Finished finitePrefix Result has 627 conditions, 613 events. 72/613 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 3007 event pairs, 0 based on Foata normal form. 0/508 useless extension candidates. Maximal degree in co-relation 384. Up to 12 conditions per place. [2023-08-29 03:01:45,298 INFO L82 GeneralOperation]: Start removeDead. Operand has 328 places, 365 transitions, 748 flow [2023-08-29 03:01:45,301 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 327 places, 363 transitions, 744 flow [2023-08-29 03:01:45,302 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 03:01:45,302 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 327 places, 363 transitions, 744 flow [2023-08-29 03:01:45,302 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 327 places, 363 transitions, 744 flow [2023-08-29 03:01:45,302 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 327 places, 363 transitions, 744 flow [2023-08-29 03:01:45,366 INFO L130 PetriNetUnfolder]: 71/611 cut-off events. [2023-08-29 03:01:45,367 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2023-08-29 03:01:45,373 INFO L83 FinitePrefix]: Finished finitePrefix Result has 625 conditions, 611 events. 71/611 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 3018 event pairs, 0 based on Foata normal form. 0/507 useless extension candidates. Maximal degree in co-relation 382. Up to 12 conditions per place. [2023-08-29 03:01:45,394 INFO L119 LiptonReduction]: Number of co-enabled transitions 59580 [2023-08-29 03:01:50,275 INFO L134 LiptonReduction]: Checked pairs total: 300701 [2023-08-29 03:01:50,275 INFO L136 LiptonReduction]: Total number of compositions: 210 [2023-08-29 03:01:50,276 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 03:01:50,277 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;@6f3433f3, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 03:01:50,277 INFO L358 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2023-08-29 03:01:50,281 INFO L130 PetriNetUnfolder]: 13/72 cut-off events. [2023-08-29 03:01:50,281 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-29 03:01:50,281 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:01:50,281 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:01:50,282 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr3ASSERT_VIOLATIONDATA_RACE, t_funErr1ASSERT_VIOLATIONDATA_RACE, t_funErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2023-08-29 03:01:50,282 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:01:50,282 INFO L85 PathProgramCache]: Analyzing trace with hash 902487861, now seen corresponding path program 1 times [2023-08-29 03:01:50,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:01:50,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521636094] [2023-08-29 03:01:50,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:01:50,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:01:50,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:01:50,301 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 03:01:50,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:01:50,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521636094] [2023-08-29 03:01:50,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [521636094] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:01:50,301 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:01:50,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 03:01:50,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751875598] [2023-08-29 03:01:50,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:01:50,302 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-29 03:01:50,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:01:50,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-29 03:01:50,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-29 03:01:50,303 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 323 out of 575 [2023-08-29 03:01:50,315 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 160 places, 192 transitions, 402 flow. Second operand has 2 states, 2 states have (on average 325.0) internal successors, (650), 2 states have internal predecessors, (650), 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 03:01:50,316 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:01:50,316 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 323 of 575 [2023-08-29 03:01:50,316 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:01:52,516 INFO L130 PetriNetUnfolder]: 14723/34693 cut-off events. [2023-08-29 03:01:52,517 INFO L131 PetriNetUnfolder]: For 187/238 co-relation queries the response was YES. [2023-08-29 03:01:52,569 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56063 conditions, 34693 events. 14723/34693 cut-off events. For 187/238 co-relation queries the response was YES. Maximal size of possible extension queue 879. Compared 374405 event pairs, 13600 based on Foata normal form. 5781/37193 useless extension candidates. Maximal degree in co-relation 26692. Up to 21257 conditions per place. [2023-08-29 03:01:52,768 INFO L137 encePairwiseOnDemand]: 543/575 looper letters, 61 selfloop transitions, 0 changer transitions 0/160 dead transitions. [2023-08-29 03:01:52,768 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 160 transitions, 460 flow [2023-08-29 03:01:52,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-29 03:01:52,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-29 03:01:52,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 739 transitions. [2023-08-29 03:01:52,771 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6426086956521739 [2023-08-29 03:01:52,771 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 739 transitions. [2023-08-29 03:01:52,771 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 739 transitions. [2023-08-29 03:01:52,772 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:01:52,772 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 739 transitions. [2023-08-29 03:01:52,774 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 369.5) internal successors, (739), 2 states have internal predecessors, (739), 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 03:01:52,776 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 575.0) internal successors, (1725), 3 states have internal predecessors, (1725), 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 03:01:52,776 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 575.0) internal successors, (1725), 3 states have internal predecessors, (1725), 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 03:01:52,776 INFO L175 Difference]: Start difference. First operand has 160 places, 192 transitions, 402 flow. Second operand 2 states and 739 transitions. [2023-08-29 03:01:52,776 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 160 transitions, 460 flow [2023-08-29 03:01:52,778 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 161 places, 160 transitions, 460 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 03:01:52,780 INFO L231 Difference]: Finished difference. Result has 161 places, 160 transitions, 338 flow [2023-08-29 03:01:52,780 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=575, PETRI_DIFFERENCE_MINUEND_FLOW=338, PETRI_DIFFERENCE_MINUEND_PLACES=160, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=160, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=160, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=338, PETRI_PLACES=161, PETRI_TRANSITIONS=160} [2023-08-29 03:01:52,781 INFO L281 CegarLoopForPetriNet]: 160 programPoint places, 1 predicate places. [2023-08-29 03:01:52,781 INFO L495 AbstractCegarLoop]: Abstraction has has 161 places, 160 transitions, 338 flow [2023-08-29 03:01:52,781 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 325.0) internal successors, (650), 2 states have internal predecessors, (650), 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 03:01:52,782 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:01:52,782 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:01:52,782 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-29 03:01:52,782 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr3ASSERT_VIOLATIONDATA_RACE, t_funErr1ASSERT_VIOLATIONDATA_RACE, t_funErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2023-08-29 03:01:52,782 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:01:52,783 INFO L85 PathProgramCache]: Analyzing trace with hash 790723660, now seen corresponding path program 1 times [2023-08-29 03:01:52,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:01:52,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588814061] [2023-08-29 03:01:52,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:01:52,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:01:52,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:01:52,945 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 03:01:52,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:01:52,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588814061] [2023-08-29 03:01:52,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [588814061] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:01:52,946 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:01:52,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 03:01:52,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074001485] [2023-08-29 03:01:52,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:01:52,947 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 03:01:52,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:01:52,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 03:01:52,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 03:01:53,330 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 276 out of 575 [2023-08-29 03:01:53,331 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 160 transitions, 338 flow. Second operand has 6 states, 6 states have (on average 277.5) internal successors, (1665), 6 states have internal predecessors, (1665), 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 03:01:53,331 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:01:53,331 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 276 of 575 [2023-08-29 03:01:53,331 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:02:01,668 INFO L130 PetriNetUnfolder]: 74611/132543 cut-off events. [2023-08-29 03:02:01,669 INFO L131 PetriNetUnfolder]: For 416/479 co-relation queries the response was YES. [2023-08-29 03:02:01,860 INFO L83 FinitePrefix]: Finished finitePrefix Result has 244740 conditions, 132543 events. 74611/132543 cut-off events. For 416/479 co-relation queries the response was YES. Maximal size of possible extension queue 2834. Compared 1313312 event pairs, 36705 based on Foata normal form. 17/123476 useless extension candidates. Maximal degree in co-relation 244735. Up to 80781 conditions per place. [2023-08-29 03:02:02,231 INFO L137 encePairwiseOnDemand]: 539/575 looper letters, 227 selfloop transitions, 81 changer transitions 0/371 dead transitions. [2023-08-29 03:02:02,232 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 166 places, 371 transitions, 1382 flow [2023-08-29 03:02:02,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 03:02:02,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 03:02:02,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1967 transitions. [2023-08-29 03:02:02,237 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5701449275362319 [2023-08-29 03:02:02,237 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1967 transitions. [2023-08-29 03:02:02,237 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1967 transitions. [2023-08-29 03:02:02,238 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:02:02,239 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1967 transitions. [2023-08-29 03:02:02,242 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 327.8333333333333) internal successors, (1967), 6 states have internal predecessors, (1967), 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 03:02:02,246 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 575.0) internal successors, (4025), 7 states have internal predecessors, (4025), 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 03:02:02,246 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 575.0) internal successors, (4025), 7 states have internal predecessors, (4025), 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 03:02:02,246 INFO L175 Difference]: Start difference. First operand has 161 places, 160 transitions, 338 flow. Second operand 6 states and 1967 transitions. [2023-08-29 03:02:02,247 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 166 places, 371 transitions, 1382 flow [2023-08-29 03:02:02,249 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 371 transitions, 1382 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 03:02:02,252 INFO L231 Difference]: Finished difference. Result has 171 places, 238 transitions, 884 flow [2023-08-29 03:02:02,253 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=575, PETRI_DIFFERENCE_MINUEND_FLOW=338, PETRI_DIFFERENCE_MINUEND_PLACES=161, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=160, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=884, PETRI_PLACES=171, PETRI_TRANSITIONS=238} [2023-08-29 03:02:02,255 INFO L281 CegarLoopForPetriNet]: 160 programPoint places, 11 predicate places. [2023-08-29 03:02:02,255 INFO L495 AbstractCegarLoop]: Abstraction has has 171 places, 238 transitions, 884 flow [2023-08-29 03:02:02,256 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 277.5) internal successors, (1665), 6 states have internal predecessors, (1665), 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 03:02:02,256 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:02:02,256 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:02:02,256 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-29 03:02:02,256 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr4ASSERT_VIOLATIONDATA_RACE === [t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr3ASSERT_VIOLATIONDATA_RACE, t_funErr1ASSERT_VIOLATIONDATA_RACE, t_funErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2023-08-29 03:02:02,256 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:02:02,257 INFO L85 PathProgramCache]: Analyzing trace with hash -1683003529, now seen corresponding path program 1 times [2023-08-29 03:02:02,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:02:02,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489248495] [2023-08-29 03:02:02,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:02:02,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:02:02,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:02:02,418 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 03:02:02,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:02:02,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489248495] [2023-08-29 03:02:02,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1489248495] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:02:02,419 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:02:02,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 03:02:02,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179624746] [2023-08-29 03:02:02,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:02:02,419 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 03:02:02,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:02:02,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 03:02:02,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 03:02:02,896 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 258 out of 575 [2023-08-29 03:02:02,897 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 171 places, 238 transitions, 884 flow. Second operand has 6 states, 6 states have (on average 259.8333333333333) internal successors, (1559), 6 states have internal predecessors, (1559), 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 03:02:02,897 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:02:02,897 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 258 of 575 [2023-08-29 03:02:02,898 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:02:37,279 INFO L130 PetriNetUnfolder]: 268335/463478 cut-off events. [2023-08-29 03:02:37,280 INFO L131 PetriNetUnfolder]: For 130428/137644 co-relation queries the response was YES. [2023-08-29 03:02:38,565 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1036607 conditions, 463478 events. 268335/463478 cut-off events. For 130428/137644 co-relation queries the response was YES. Maximal size of possible extension queue 7782. Compared 4960462 event pairs, 59044 based on Foata normal form. 2786/433108 useless extension candidates. Maximal degree in co-relation 1036597. Up to 185116 conditions per place. [2023-08-29 03:02:40,220 INFO L137 encePairwiseOnDemand]: 511/575 looper letters, 586 selfloop transitions, 300 changer transitions 0/944 dead transitions. [2023-08-29 03:02:40,221 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 176 places, 944 transitions, 5360 flow [2023-08-29 03:02:40,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 03:02:40,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 03:02:40,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2100 transitions. [2023-08-29 03:02:40,225 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6086956521739131 [2023-08-29 03:02:40,225 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2100 transitions. [2023-08-29 03:02:40,225 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2100 transitions. [2023-08-29 03:02:40,226 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:02:40,227 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2100 transitions. [2023-08-29 03:02:40,230 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 350.0) internal successors, (2100), 6 states have internal predecessors, (2100), 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 03:02:40,234 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 575.0) internal successors, (4025), 7 states have internal predecessors, (4025), 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 03:02:40,235 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 575.0) internal successors, (4025), 7 states have internal predecessors, (4025), 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 03:02:40,235 INFO L175 Difference]: Start difference. First operand has 171 places, 238 transitions, 884 flow. Second operand 6 states and 2100 transitions. [2023-08-29 03:02:40,235 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 176 places, 944 transitions, 5360 flow [2023-08-29 03:02:42,037 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 176 places, 944 transitions, 5360 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 03:02:42,046 INFO L231 Difference]: Finished difference. Result has 181 places, 562 transitions, 3920 flow [2023-08-29 03:02:42,046 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=575, PETRI_DIFFERENCE_MINUEND_FLOW=884, PETRI_DIFFERENCE_MINUEND_PLACES=171, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=238, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=60, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=114, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3920, PETRI_PLACES=181, PETRI_TRANSITIONS=562} [2023-08-29 03:02:42,046 INFO L281 CegarLoopForPetriNet]: 160 programPoint places, 21 predicate places. [2023-08-29 03:02:42,047 INFO L495 AbstractCegarLoop]: Abstraction has has 181 places, 562 transitions, 3920 flow [2023-08-29 03:02:42,047 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 259.8333333333333) internal successors, (1559), 6 states have internal predecessors, (1559), 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 03:02:42,047 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:02:42,047 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 03:02:42,048 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-29 03:02:42,048 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr3ASSERT_VIOLATIONDATA_RACE, t_funErr1ASSERT_VIOLATIONDATA_RACE, t_funErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2023-08-29 03:02:42,048 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:02:42,048 INFO L85 PathProgramCache]: Analyzing trace with hash 1422057176, now seen corresponding path program 1 times [2023-08-29 03:02:42,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:02:42,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701007125] [2023-08-29 03:02:42,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:02:42,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:02:42,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:02:42,214 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 03:02:42,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:02:42,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701007125] [2023-08-29 03:02:42,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1701007125] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:02:42,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:02:42,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 03:02:42,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882751418] [2023-08-29 03:02:42,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:02:42,218 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 03:02:42,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:02:42,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 03:02:42,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 03:02:42,463 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 248 out of 575 [2023-08-29 03:02:42,464 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 181 places, 562 transitions, 3920 flow. Second operand has 6 states, 6 states have (on average 250.5) internal successors, (1503), 6 states have internal predecessors, (1503), 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 03:02:42,465 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:02:42,465 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 248 of 575 [2023-08-29 03:02:42,465 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 03:03:58,895 INFO L130 PetriNetUnfolder]: 393193/649058 cut-off events. [2023-08-29 03:03:58,895 INFO L131 PetriNetUnfolder]: For 677419/690398 co-relation queries the response was YES. [2023-08-29 03:04:01,534 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1979357 conditions, 649058 events. 393193/649058 cut-off events. For 677419/690398 co-relation queries the response was YES. Maximal size of possible extension queue 8962. Compared 6606490 event pairs, 185337 based on Foata normal form. 231/622867 useless extension candidates. Maximal degree in co-relation 1979342. Up to 564968 conditions per place. [2023-08-29 03:04:03,925 INFO L137 encePairwiseOnDemand]: 528/575 looper letters, 698 selfloop transitions, 312 changer transitions 0/1051 dead transitions. [2023-08-29 03:04:03,925 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 1051 transitions, 8420 flow [2023-08-29 03:04:03,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 03:04:03,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 03:04:03,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1901 transitions. [2023-08-29 03:04:03,928 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5510144927536232 [2023-08-29 03:04:03,928 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1901 transitions. [2023-08-29 03:04:03,928 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1901 transitions. [2023-08-29 03:04:03,929 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 03:04:03,929 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1901 transitions. [2023-08-29 03:04:03,932 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 316.8333333333333) internal successors, (1901), 6 states have internal predecessors, (1901), 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 03:04:03,935 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 575.0) internal successors, (4025), 7 states have internal predecessors, (4025), 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 03:04:03,936 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 575.0) internal successors, (4025), 7 states have internal predecessors, (4025), 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 03:04:03,936 INFO L175 Difference]: Start difference. First operand has 181 places, 562 transitions, 3920 flow. Second operand 6 states and 1901 transitions. [2023-08-29 03:04:03,936 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 1051 transitions, 8420 flow [2023-08-29 03:04:08,374 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 186 places, 1051 transitions, 8420 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 03:04:08,383 INFO L231 Difference]: Finished difference. Result has 191 places, 864 transitions, 7216 flow [2023-08-29 03:04:08,384 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=575, PETRI_DIFFERENCE_MINUEND_FLOW=3920, PETRI_DIFFERENCE_MINUEND_PLACES=181, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=562, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=72, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=436, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=7216, PETRI_PLACES=191, PETRI_TRANSITIONS=864} [2023-08-29 03:04:08,384 INFO L281 CegarLoopForPetriNet]: 160 programPoint places, 31 predicate places. [2023-08-29 03:04:08,384 INFO L495 AbstractCegarLoop]: Abstraction has has 191 places, 864 transitions, 7216 flow [2023-08-29 03:04:08,385 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 250.5) internal successors, (1503), 6 states have internal predecessors, (1503), 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 03:04:08,385 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 03:04:08,385 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 03:04:08,385 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-08-29 03:04:08,386 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [t_funErr0ASSERT_VIOLATIONDATA_RACE, t_funErr3ASSERT_VIOLATIONDATA_RACE, t_funErr1ASSERT_VIOLATIONDATA_RACE, t_funErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2023-08-29 03:04:08,386 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 03:04:08,386 INFO L85 PathProgramCache]: Analyzing trace with hash 489045447, now seen corresponding path program 1 times [2023-08-29 03:04:08,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 03:04:08,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931680533] [2023-08-29 03:04:08,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 03:04:08,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 03:04:08,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 03:04:08,570 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 03:04:08,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 03:04:08,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931680533] [2023-08-29 03:04:08,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1931680533] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 03:04:08,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 03:04:08,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 03:04:08,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696015603] [2023-08-29 03:04:08,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 03:04:08,571 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 03:04:08,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 03:04:08,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 03:04:08,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 03:04:08,974 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 288 out of 575 [2023-08-29 03:04:08,975 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 191 places, 864 transitions, 7216 flow. Second operand has 6 states, 6 states have (on average 290.1666666666667) internal successors, (1741), 6 states have internal predecessors, (1741), 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 03:04:08,975 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 03:04:08,975 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 288 of 575 [2023-08-29 03:04:08,975 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand