./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_27-multiple-protecting2_true.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/13-privatized_27-multiple-protecting2_true.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 2d0b9c4fc8b0005fb250fdf1ff8e25835b95e676b1936e4f5fe1cf72245ee5f5 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-29 02:38:16,349 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 02:38:16,350 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 02:38:16,385 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 02:38:16,386 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 02:38:16,388 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 02:38:16,390 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 02:38:16,392 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 02:38:16,393 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 02:38:16,396 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 02:38:16,397 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 02:38:16,399 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 02:38:16,399 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 02:38:16,400 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 02:38:16,401 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 02:38:16,405 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 02:38:16,406 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 02:38:16,407 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 02:38:16,408 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 02:38:16,412 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 02:38:16,413 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 02:38:16,414 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 02:38:16,420 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 02:38:16,420 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 02:38:16,422 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 02:38:16,422 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 02:38:16,423 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 02:38:16,424 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 02:38:16,424 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 02:38:16,425 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 02:38:16,425 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 02:38:16,426 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 02:38:16,427 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 02:38:16,427 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 02:38:16,428 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 02:38:16,428 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 02:38:16,428 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 02:38:16,428 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 02:38:16,428 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 02:38:16,429 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 02:38:16,429 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 02:38:16,431 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-29 02:38:16,455 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 02:38:16,455 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 02:38:16,456 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 02:38:16,456 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 02:38:16,457 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 02:38:16,457 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 02:38:16,457 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 02:38:16,457 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 02:38:16,458 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 02:38:16,458 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 02:38:16,458 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 02:38:16,458 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 02:38:16,458 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 02:38:16,459 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 02:38:16,459 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 02:38:16,459 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-29 02:38:16,459 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 02:38:16,459 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-29 02:38:16,459 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-29 02:38:16,459 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 02:38:16,460 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-29 02:38:16,460 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 02:38:16,460 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-29 02:38:16,460 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 02:38:16,460 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 02:38:16,460 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 02:38:16,460 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 02:38:16,461 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 02:38:16,461 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 02:38:16,461 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-29 02:38:16,461 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 02:38:16,461 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 02:38:16,461 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 02:38:16,461 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-29 02:38:16,462 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 02:38:16,462 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 02:38:16,462 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 02:38:16,462 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2d0b9c4fc8b0005fb250fdf1ff8e25835b95e676b1936e4f5fe1cf72245ee5f5 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-29 02:38:16,681 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 02:38:16,698 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 02:38:16,700 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 02:38:16,701 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 02:38:16,701 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 02:38:16,702 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_27-multiple-protecting2_true.i [2023-08-29 02:38:17,633 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 02:38:17,845 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 02:38:17,845 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_27-multiple-protecting2_true.i [2023-08-29 02:38:17,859 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2f3502315/c1c068bbd6f64c11bcaa7dd3869cfe38/FLAG427565630 [2023-08-29 02:38:18,191 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2f3502315/c1c068bbd6f64c11bcaa7dd3869cfe38 [2023-08-29 02:38:18,193 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 02:38:18,194 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 02:38:18,195 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 02:38:18,195 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 02:38:18,197 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 02:38:18,197 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 02:38:18" (1/1) ... [2023-08-29 02:38:18,198 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45f65fd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:38:18, skipping insertion in model container [2023-08-29 02:38:18,198 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 02:38:18" (1/1) ... [2023-08-29 02:38:18,202 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 02:38:18,228 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 02:38:18,329 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/13-privatized_27-multiple-protecting2_true.i[1097,1110] [2023-08-29 02:38:18,435 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 02:38:18,451 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 02:38:18,460 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/13-privatized_27-multiple-protecting2_true.i[1097,1110] [2023-08-29 02:38:18,502 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 02:38:18,536 INFO L208 MainTranslator]: Completed translation [2023-08-29 02:38:18,536 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:38:18 WrapperNode [2023-08-29 02:38:18,536 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 02:38:18,537 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 02:38:18,537 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 02:38:18,537 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 02:38:18,542 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:38:18" (1/1) ... [2023-08-29 02:38:18,565 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:38:18" (1/1) ... [2023-08-29 02:38:18,609 INFO L138 Inliner]: procedures = 163, calls = 52, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 122 [2023-08-29 02:38:18,610 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 02:38:18,611 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 02:38:18,611 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 02:38:18,611 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 02:38:18,617 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:38:18" (1/1) ... [2023-08-29 02:38:18,617 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:38:18" (1/1) ... [2023-08-29 02:38:18,629 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:38:18" (1/1) ... [2023-08-29 02:38:18,630 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:38:18" (1/1) ... [2023-08-29 02:38:18,634 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:38:18" (1/1) ... [2023-08-29 02:38:18,642 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:38:18" (1/1) ... [2023-08-29 02:38:18,644 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:38:18" (1/1) ... [2023-08-29 02:38:18,649 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:38:18" (1/1) ... [2023-08-29 02:38:18,651 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 02:38:18,655 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 02:38:18,655 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 02:38:18,655 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 02:38:18,656 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:38:18" (1/1) ... [2023-08-29 02:38:18,660 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 02:38:18,668 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 02:38:18,677 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-29 02:38:18,705 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-29 02:38:18,715 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-29 02:38:18,715 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2023-08-29 02:38:18,716 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2023-08-29 02:38:18,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-29 02:38:18,716 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-29 02:38:18,716 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-29 02:38:18,717 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 02:38:18,717 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-29 02:38:18,717 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-29 02:38:18,717 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 02:38:18,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-29 02:38:18,717 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 02:38:18,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 02:38:18,718 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-29 02:38:18,853 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 02:38:18,870 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 02:38:19,103 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 02:38:19,109 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 02:38:19,110 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-29 02:38:19,111 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 02:38:19 BoogieIcfgContainer [2023-08-29 02:38:19,111 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 02:38:19,112 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 02:38:19,112 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 02:38:19,114 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 02:38:19,115 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 02:38:18" (1/3) ... [2023-08-29 02:38:19,115 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d028f2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 02:38:19, skipping insertion in model container [2023-08-29 02:38:19,115 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 02:38:18" (2/3) ... [2023-08-29 02:38:19,115 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d028f2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 02:38:19, skipping insertion in model container [2023-08-29 02:38:19,115 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 02:38:19" (3/3) ... [2023-08-29 02:38:19,116 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_27-multiple-protecting2_true.i [2023-08-29 02:38:19,121 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-29 02:38:19,127 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 02:38:19,127 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2023-08-29 02:38:19,127 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 02:38:19,199 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-29 02:38:19,223 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 202 places, 199 transitions, 414 flow [2023-08-29 02:38:19,271 INFO L130 PetriNetUnfolder]: 4/197 cut-off events. [2023-08-29 02:38:19,272 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-29 02:38:19,279 INFO L83 FinitePrefix]: Finished finitePrefix Result has 206 conditions, 197 events. 4/197 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 257 event pairs, 0 based on Foata normal form. 0/179 useless extension candidates. Maximal degree in co-relation 145. Up to 2 conditions per place. [2023-08-29 02:38:19,281 INFO L82 GeneralOperation]: Start removeDead. Operand has 202 places, 199 transitions, 414 flow [2023-08-29 02:38:19,284 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 191 places, 188 transitions, 385 flow [2023-08-29 02:38:19,286 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 02:38:19,292 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 191 places, 188 transitions, 385 flow [2023-08-29 02:38:19,294 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 191 places, 188 transitions, 385 flow [2023-08-29 02:38:19,294 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 191 places, 188 transitions, 385 flow [2023-08-29 02:38:19,319 INFO L130 PetriNetUnfolder]: 4/188 cut-off events. [2023-08-29 02:38:19,320 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-29 02:38:19,321 INFO L83 FinitePrefix]: Finished finitePrefix Result has 196 conditions, 188 events. 4/188 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 257 event pairs, 0 based on Foata normal form. 0/170 useless extension candidates. Maximal degree in co-relation 145. Up to 2 conditions per place. [2023-08-29 02:38:19,337 INFO L119 LiptonReduction]: Number of co-enabled transitions 12444 [2023-08-29 02:38:22,672 INFO L134 LiptonReduction]: Checked pairs total: 57434 [2023-08-29 02:38:22,672 INFO L136 LiptonReduction]: Total number of compositions: 121 [2023-08-29 02:38:22,682 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 02:38:22,686 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;@40a69c72, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 02:38:22,686 INFO L358 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2023-08-29 02:38:22,690 INFO L130 PetriNetUnfolder]: 0/9 cut-off events. [2023-08-29 02:38:22,690 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 02:38:22,690 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:38:22,690 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-29 02:38:22,691 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2023-08-29 02:38:22,694 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:38:22,698 INFO L85 PathProgramCache]: Analyzing trace with hash 1636637132, now seen corresponding path program 1 times [2023-08-29 02:38:22,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:38:22,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849860080] [2023-08-29 02:38:22,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:38:22,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:38:22,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:38:22,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:38:22,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:38:22,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849860080] [2023-08-29 02:38:22,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849860080] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:38:22,889 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:38:22,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 02:38:22,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597759005] [2023-08-29 02:38:22,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:38:22,896 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 02:38:22,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:38:22,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 02:38:22,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 02:38:22,941 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 170 out of 320 [2023-08-29 02:38:22,945 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 78 transitions, 165 flow. Second operand has 3 states, 3 states have (on average 171.66666666666666) internal successors, (515), 3 states have internal predecessors, (515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:38:22,945 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:38:22,945 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 170 of 320 [2023-08-29 02:38:22,946 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:38:24,016 INFO L130 PetriNetUnfolder]: 9636/16858 cut-off events. [2023-08-29 02:38:24,016 INFO L131 PetriNetUnfolder]: For 36/36 co-relation queries the response was YES. [2023-08-29 02:38:24,034 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32061 conditions, 16858 events. 9636/16858 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 408. Compared 126181 event pairs, 2968 based on Foata normal form. 240/16333 useless extension candidates. Maximal degree in co-relation 31843. Up to 9472 conditions per place. [2023-08-29 02:38:24,145 INFO L137 encePairwiseOnDemand]: 302/320 looper letters, 87 selfloop transitions, 10 changer transitions 0/117 dead transitions. [2023-08-29 02:38:24,145 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 117 transitions, 443 flow [2023-08-29 02:38:24,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 02:38:24,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 02:38:24,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 618 transitions. [2023-08-29 02:38:24,190 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.64375 [2023-08-29 02:38:24,191 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 618 transitions. [2023-08-29 02:38:24,191 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 618 transitions. [2023-08-29 02:38:24,192 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:38:24,194 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 618 transitions. [2023-08-29 02:38:24,200 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 206.0) internal successors, (618), 3 states have internal predecessors, (618), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:38:24,205 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 320.0) internal successors, (1280), 4 states have internal predecessors, (1280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:38:24,206 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 320.0) internal successors, (1280), 4 states have internal predecessors, (1280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:38:24,207 INFO L175 Difference]: Start difference. First operand has 84 places, 78 transitions, 165 flow. Second operand 3 states and 618 transitions. [2023-08-29 02:38:24,208 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 117 transitions, 443 flow [2023-08-29 02:38:24,213 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 117 transitions, 435 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-29 02:38:24,215 INFO L231 Difference]: Finished difference. Result has 81 places, 81 transitions, 228 flow [2023-08-29 02:38:24,217 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=320, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=228, PETRI_PLACES=81, PETRI_TRANSITIONS=81} [2023-08-29 02:38:24,219 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, -3 predicate places. [2023-08-29 02:38:24,220 INFO L495 AbstractCegarLoop]: Abstraction has has 81 places, 81 transitions, 228 flow [2023-08-29 02:38:24,220 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 171.66666666666666) internal successors, (515), 3 states have internal predecessors, (515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:38:24,220 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:38:24,220 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:38:24,221 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-29 02:38:24,225 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t2_funErr0ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2023-08-29 02:38:24,228 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:38:24,228 INFO L85 PathProgramCache]: Analyzing trace with hash 1655596428, now seen corresponding path program 1 times [2023-08-29 02:38:24,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:38:24,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044941889] [2023-08-29 02:38:24,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:38:24,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:38:24,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:38:24,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:38:24,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:38:24,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044941889] [2023-08-29 02:38:24,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2044941889] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:38:24,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:38:24,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 02:38:24,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104771748] [2023-08-29 02:38:24,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:38:24,297 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 02:38:24,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:38:24,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 02:38:24,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 02:38:24,310 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 176 out of 320 [2023-08-29 02:38:24,321 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 81 transitions, 228 flow. Second operand has 3 states, 3 states have (on average 178.66666666666666) internal successors, (536), 3 states have internal predecessors, (536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:38:24,321 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:38:24,321 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 176 of 320 [2023-08-29 02:38:24,321 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:38:25,687 INFO L130 PetriNetUnfolder]: 13483/23643 cut-off events. [2023-08-29 02:38:25,687 INFO L131 PetriNetUnfolder]: For 5916/5916 co-relation queries the response was YES. [2023-08-29 02:38:25,710 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50021 conditions, 23643 events. 13483/23643 cut-off events. For 5916/5916 co-relation queries the response was YES. Maximal size of possible extension queue 535. Compared 183541 event pairs, 5451 based on Foata normal form. 0/22700 useless extension candidates. Maximal degree in co-relation 44253. Up to 12149 conditions per place. [2023-08-29 02:38:25,776 INFO L137 encePairwiseOnDemand]: 311/320 looper letters, 91 selfloop transitions, 6 changer transitions 0/122 dead transitions. [2023-08-29 02:38:25,776 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 122 transitions, 531 flow [2023-08-29 02:38:25,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 02:38:25,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 02:38:25,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 622 transitions. [2023-08-29 02:38:25,778 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6479166666666667 [2023-08-29 02:38:25,778 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 622 transitions. [2023-08-29 02:38:25,778 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 622 transitions. [2023-08-29 02:38:25,779 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:38:25,779 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 622 transitions. [2023-08-29 02:38:25,780 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 207.33333333333334) internal successors, (622), 3 states have internal predecessors, (622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:38:25,781 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 320.0) internal successors, (1280), 4 states have internal predecessors, (1280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:38:25,782 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 320.0) internal successors, (1280), 4 states have internal predecessors, (1280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:38:25,782 INFO L175 Difference]: Start difference. First operand has 81 places, 81 transitions, 228 flow. Second operand 3 states and 622 transitions. [2023-08-29 02:38:25,782 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 122 transitions, 531 flow [2023-08-29 02:38:25,813 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 122 transitions, 501 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 02:38:25,815 INFO L231 Difference]: Finished difference. Result has 81 places, 83 transitions, 246 flow [2023-08-29 02:38:25,815 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=320, PETRI_DIFFERENCE_MINUEND_FLOW=204, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=246, PETRI_PLACES=81, PETRI_TRANSITIONS=83} [2023-08-29 02:38:25,816 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, -3 predicate places. [2023-08-29 02:38:25,816 INFO L495 AbstractCegarLoop]: Abstraction has has 81 places, 83 transitions, 246 flow [2023-08-29 02:38:25,816 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 178.66666666666666) internal successors, (536), 3 states have internal predecessors, (536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:38:25,816 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:38:25,817 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:38:25,817 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-29 02:38:25,817 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2023-08-29 02:38:25,819 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:38:25,819 INFO L85 PathProgramCache]: Analyzing trace with hash 590211205, now seen corresponding path program 1 times [2023-08-29 02:38:25,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:38:25,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554380062] [2023-08-29 02:38:25,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:38:25,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:38:25,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:38:25,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:38:25,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:38:25,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554380062] [2023-08-29 02:38:25,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [554380062] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:38:25,878 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:38:25,878 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 02:38:25,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129715479] [2023-08-29 02:38:25,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:38:25,879 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 02:38:25,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:38:25,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 02:38:25,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 02:38:25,903 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 176 out of 320 [2023-08-29 02:38:25,903 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 83 transitions, 246 flow. Second operand has 3 states, 3 states have (on average 178.33333333333334) internal successors, (535), 3 states have internal predecessors, (535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:38:25,903 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:38:25,904 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 176 of 320 [2023-08-29 02:38:25,904 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:38:26,969 INFO L130 PetriNetUnfolder]: 12136/21846 cut-off events. [2023-08-29 02:38:26,969 INFO L131 PetriNetUnfolder]: For 3524/3524 co-relation queries the response was YES. [2023-08-29 02:38:27,068 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46456 conditions, 21846 events. 12136/21846 cut-off events. For 3524/3524 co-relation queries the response was YES. Maximal size of possible extension queue 546. Compared 174230 event pairs, 8361 based on Foata normal form. 0/20591 useless extension candidates. Maximal degree in co-relation 41662. Up to 15885 conditions per place. [2023-08-29 02:38:27,124 INFO L137 encePairwiseOnDemand]: 313/320 looper letters, 82 selfloop transitions, 8 changer transitions 0/119 dead transitions. [2023-08-29 02:38:27,124 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 119 transitions, 516 flow [2023-08-29 02:38:27,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 02:38:27,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 02:38:27,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 610 transitions. [2023-08-29 02:38:27,126 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6354166666666666 [2023-08-29 02:38:27,127 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 610 transitions. [2023-08-29 02:38:27,127 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 610 transitions. [2023-08-29 02:38:27,127 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:38:27,127 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 610 transitions. [2023-08-29 02:38:27,128 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 203.33333333333334) internal successors, (610), 3 states have internal predecessors, (610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:38:27,130 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 320.0) internal successors, (1280), 4 states have internal predecessors, (1280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:38:27,130 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 320.0) internal successors, (1280), 4 states have internal predecessors, (1280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:38:27,130 INFO L175 Difference]: Start difference. First operand has 81 places, 83 transitions, 246 flow. Second operand 3 states and 610 transitions. [2023-08-29 02:38:27,130 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 119 transitions, 516 flow [2023-08-29 02:38:27,134 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 119 transitions, 502 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 02:38:27,144 INFO L231 Difference]: Finished difference. Result has 83 places, 90 transitions, 306 flow [2023-08-29 02:38:27,144 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=320, PETRI_DIFFERENCE_MINUEND_FLOW=234, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=306, PETRI_PLACES=83, PETRI_TRANSITIONS=90} [2023-08-29 02:38:27,145 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, -1 predicate places. [2023-08-29 02:38:27,145 INFO L495 AbstractCegarLoop]: Abstraction has has 83 places, 90 transitions, 306 flow [2023-08-29 02:38:27,146 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 178.33333333333334) internal successors, (535), 3 states have internal predecessors, (535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:38:27,146 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:38:27,146 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:38:27,146 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-29 02:38:27,146 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t2_funErr1ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2023-08-29 02:38:27,147 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:38:27,147 INFO L85 PathProgramCache]: Analyzing trace with hash -1527532967, now seen corresponding path program 1 times [2023-08-29 02:38:27,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:38:27,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756908122] [2023-08-29 02:38:27,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:38:27,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:38:27,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:38:27,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:38:27,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:38:27,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756908122] [2023-08-29 02:38:27,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [756908122] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:38:27,198 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:38:27,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 02:38:27,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285068443] [2023-08-29 02:38:27,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:38:27,199 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 02:38:27,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:38:27,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 02:38:27,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 02:38:27,214 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 178 out of 320 [2023-08-29 02:38:27,215 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 90 transitions, 306 flow. Second operand has 3 states, 3 states have (on average 181.66666666666666) internal successors, (545), 3 states have internal predecessors, (545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:38:27,215 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:38:27,215 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 178 of 320 [2023-08-29 02:38:27,218 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:38:28,669 INFO L130 PetriNetUnfolder]: 14846/25998 cut-off events. [2023-08-29 02:38:28,669 INFO L131 PetriNetUnfolder]: For 12060/12387 co-relation queries the response was YES. [2023-08-29 02:38:28,692 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60677 conditions, 25998 events. 14846/25998 cut-off events. For 12060/12387 co-relation queries the response was YES. Maximal size of possible extension queue 595. Compared 201903 event pairs, 10655 based on Foata normal form. 0/24711 useless extension candidates. Maximal degree in co-relation 54746. Up to 21299 conditions per place. [2023-08-29 02:38:28,759 INFO L137 encePairwiseOnDemand]: 316/320 looper letters, 94 selfloop transitions, 3 changer transitions 0/128 dead transitions. [2023-08-29 02:38:28,759 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 128 transitions, 619 flow [2023-08-29 02:38:28,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 02:38:28,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 02:38:28,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 617 transitions. [2023-08-29 02:38:28,762 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6427083333333333 [2023-08-29 02:38:28,762 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 617 transitions. [2023-08-29 02:38:28,765 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 617 transitions. [2023-08-29 02:38:28,766 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:38:28,766 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 617 transitions. [2023-08-29 02:38:28,767 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 205.66666666666666) internal successors, (617), 3 states have internal predecessors, (617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:38:28,768 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 320.0) internal successors, (1280), 4 states have internal predecessors, (1280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:38:28,769 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 320.0) internal successors, (1280), 4 states have internal predecessors, (1280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:38:28,769 INFO L175 Difference]: Start difference. First operand has 83 places, 90 transitions, 306 flow. Second operand 3 states and 617 transitions. [2023-08-29 02:38:28,769 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 128 transitions, 619 flow [2023-08-29 02:38:28,785 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 128 transitions, 595 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 02:38:28,787 INFO L231 Difference]: Finished difference. Result has 84 places, 92 transitions, 311 flow [2023-08-29 02:38:28,788 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=320, PETRI_DIFFERENCE_MINUEND_FLOW=290, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=311, PETRI_PLACES=84, PETRI_TRANSITIONS=92} [2023-08-29 02:38:28,789 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, 0 predicate places. [2023-08-29 02:38:28,789 INFO L495 AbstractCegarLoop]: Abstraction has has 84 places, 92 transitions, 311 flow [2023-08-29 02:38:28,790 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 181.66666666666666) internal successors, (545), 3 states have internal predecessors, (545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:38:28,790 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:38:28,790 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:38:28,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-29 02:38:28,790 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2023-08-29 02:38:28,791 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:38:28,791 INFO L85 PathProgramCache]: Analyzing trace with hash 865770296, now seen corresponding path program 1 times [2023-08-29 02:38:28,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:38:28,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308528784] [2023-08-29 02:38:28,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:38:28,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:38:28,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:38:28,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:38:28,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:38:28,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308528784] [2023-08-29 02:38:28,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [308528784] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:38:28,923 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:38:28,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-29 02:38:28,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007465152] [2023-08-29 02:38:28,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:38:28,924 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-29 02:38:28,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:38:28,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-29 02:38:28,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-29 02:38:28,981 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 179 out of 320 [2023-08-29 02:38:28,982 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 92 transitions, 311 flow. Second operand has 4 states, 4 states have (on average 181.5) internal successors, (726), 4 states have internal predecessors, (726), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:38:28,982 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:38:28,982 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 179 of 320 [2023-08-29 02:38:28,982 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:38:29,477 INFO L130 PetriNetUnfolder]: 4693/9656 cut-off events. [2023-08-29 02:38:29,478 INFO L131 PetriNetUnfolder]: For 2882/3338 co-relation queries the response was YES. [2023-08-29 02:38:29,489 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21785 conditions, 9656 events. 4693/9656 cut-off events. For 2882/3338 co-relation queries the response was YES. Maximal size of possible extension queue 312. Compared 77114 event pairs, 1540 based on Foata normal form. 481/9813 useless extension candidates. Maximal degree in co-relation 20474. Up to 5472 conditions per place. [2023-08-29 02:38:29,512 INFO L137 encePairwiseOnDemand]: 313/320 looper letters, 93 selfloop transitions, 7 changer transitions 0/138 dead transitions. [2023-08-29 02:38:29,512 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 138 transitions, 640 flow [2023-08-29 02:38:29,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-29 02:38:29,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-29 02:38:29,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 804 transitions. [2023-08-29 02:38:29,514 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.628125 [2023-08-29 02:38:29,514 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 804 transitions. [2023-08-29 02:38:29,514 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 804 transitions. [2023-08-29 02:38:29,514 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:38:29,514 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 804 transitions. [2023-08-29 02:38:29,516 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 201.0) internal successors, (804), 4 states have internal predecessors, (804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:38:29,517 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 320.0) internal successors, (1600), 5 states have internal predecessors, (1600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:38:29,518 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 320.0) internal successors, (1600), 5 states have internal predecessors, (1600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:38:29,518 INFO L175 Difference]: Start difference. First operand has 84 places, 92 transitions, 311 flow. Second operand 4 states and 804 transitions. [2023-08-29 02:38:29,518 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 138 transitions, 640 flow [2023-08-29 02:38:29,520 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 138 transitions, 636 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 02:38:29,522 INFO L231 Difference]: Finished difference. Result has 87 places, 96 transitions, 344 flow [2023-08-29 02:38:29,522 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=320, PETRI_DIFFERENCE_MINUEND_FLOW=308, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=344, PETRI_PLACES=87, PETRI_TRANSITIONS=96} [2023-08-29 02:38:29,522 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, 3 predicate places. [2023-08-29 02:38:29,523 INFO L495 AbstractCegarLoop]: Abstraction has has 87 places, 96 transitions, 344 flow [2023-08-29 02:38:29,523 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 181.5) internal successors, (726), 4 states have internal predecessors, (726), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:38:29,523 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:38:29,523 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:38:29,523 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-29 02:38:29,524 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2023-08-29 02:38:29,524 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:38:29,524 INFO L85 PathProgramCache]: Analyzing trace with hash -299455417, now seen corresponding path program 1 times [2023-08-29 02:38:29,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:38:29,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498234247] [2023-08-29 02:38:29,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:38:29,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:38:29,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:38:29,542 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 02:38:29,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:38:29,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498234247] [2023-08-29 02:38:29,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1498234247] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:38:29,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:38:29,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 02:38:29,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260329332] [2023-08-29 02:38:29,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:38:29,544 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 02:38:29,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:38:29,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 02:38:29,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 02:38:29,562 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 176 out of 320 [2023-08-29 02:38:29,562 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 96 transitions, 344 flow. Second operand has 3 states, 3 states have (on average 180.0) internal successors, (540), 3 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:38:29,563 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:38:29,563 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 176 of 320 [2023-08-29 02:38:29,563 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:38:30,201 INFO L130 PetriNetUnfolder]: 5500/10690 cut-off events. [2023-08-29 02:38:30,201 INFO L131 PetriNetUnfolder]: For 3900/4310 co-relation queries the response was YES. [2023-08-29 02:38:30,213 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26937 conditions, 10690 events. 5500/10690 cut-off events. For 3900/4310 co-relation queries the response was YES. Maximal size of possible extension queue 331. Compared 82475 event pairs, 3386 based on Foata normal form. 179/10539 useless extension candidates. Maximal degree in co-relation 21862. Up to 8200 conditions per place. [2023-08-29 02:38:30,235 INFO L137 encePairwiseOnDemand]: 313/320 looper letters, 93 selfloop transitions, 8 changer transitions 3/135 dead transitions. [2023-08-29 02:38:30,236 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 135 transitions, 673 flow [2023-08-29 02:38:30,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 02:38:30,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 02:38:30,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 610 transitions. [2023-08-29 02:38:30,238 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6354166666666666 [2023-08-29 02:38:30,238 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 610 transitions. [2023-08-29 02:38:30,238 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 610 transitions. [2023-08-29 02:38:30,238 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:38:30,238 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 610 transitions. [2023-08-29 02:38:30,239 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 203.33333333333334) internal successors, (610), 3 states have internal predecessors, (610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:38:30,241 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 320.0) internal successors, (1280), 4 states have internal predecessors, (1280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:38:30,241 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 320.0) internal successors, (1280), 4 states have internal predecessors, (1280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:38:30,241 INFO L175 Difference]: Start difference. First operand has 87 places, 96 transitions, 344 flow. Second operand 3 states and 610 transitions. [2023-08-29 02:38:30,241 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 135 transitions, 673 flow [2023-08-29 02:38:30,243 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 135 transitions, 672 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 02:38:30,244 INFO L231 Difference]: Finished difference. Result has 90 places, 103 transitions, 425 flow [2023-08-29 02:38:30,245 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=320, PETRI_DIFFERENCE_MINUEND_FLOW=343, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=425, PETRI_PLACES=90, PETRI_TRANSITIONS=103} [2023-08-29 02:38:30,245 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, 6 predicate places. [2023-08-29 02:38:30,245 INFO L495 AbstractCegarLoop]: Abstraction has has 90 places, 103 transitions, 425 flow [2023-08-29 02:38:30,246 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 180.0) internal successors, (540), 3 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:38:30,246 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:38:30,246 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:38:30,246 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-29 02:38:30,246 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t2_funErr3ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2023-08-29 02:38:30,246 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:38:30,246 INFO L85 PathProgramCache]: Analyzing trace with hash -2123665943, now seen corresponding path program 1 times [2023-08-29 02:38:30,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:38:30,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960978312] [2023-08-29 02:38:30,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:38:30,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:38:30,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:38:30,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:38:30,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:38:30,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960978312] [2023-08-29 02:38:30,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960978312] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:38:30,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:38:30,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 02:38:30,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934467427] [2023-08-29 02:38:30,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:38:30,266 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 02:38:30,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:38:30,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 02:38:30,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 02:38:30,280 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 178 out of 320 [2023-08-29 02:38:30,281 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 103 transitions, 425 flow. Second operand has 3 states, 3 states have (on average 183.66666666666666) internal successors, (551), 3 states have internal predecessors, (551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:38:30,281 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:38:30,281 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 178 of 320 [2023-08-29 02:38:30,281 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:38:31,037 INFO L130 PetriNetUnfolder]: 6426/12262 cut-off events. [2023-08-29 02:38:31,037 INFO L131 PetriNetUnfolder]: For 8681/8998 co-relation queries the response was YES. [2023-08-29 02:38:31,054 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33460 conditions, 12262 events. 6426/12262 cut-off events. For 8681/8998 co-relation queries the response was YES. Maximal size of possible extension queue 361. Compared 93890 event pairs, 4135 based on Foata normal form. 0/11833 useless extension candidates. Maximal degree in co-relation 27467. Up to 10115 conditions per place. [2023-08-29 02:38:31,073 INFO L137 encePairwiseOnDemand]: 316/320 looper letters, 97 selfloop transitions, 3 changer transitions 7/143 dead transitions. [2023-08-29 02:38:31,073 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 143 transitions, 784 flow [2023-08-29 02:38:31,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 02:38:31,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 02:38:31,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 617 transitions. [2023-08-29 02:38:31,078 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6427083333333333 [2023-08-29 02:38:31,078 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 617 transitions. [2023-08-29 02:38:31,078 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 617 transitions. [2023-08-29 02:38:31,079 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:38:31,079 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 617 transitions. [2023-08-29 02:38:31,080 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 205.66666666666666) internal successors, (617), 3 states have internal predecessors, (617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:38:31,081 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 320.0) internal successors, (1280), 4 states have internal predecessors, (1280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:38:31,081 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 320.0) internal successors, (1280), 4 states have internal predecessors, (1280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:38:31,082 INFO L175 Difference]: Start difference. First operand has 90 places, 103 transitions, 425 flow. Second operand 3 states and 617 transitions. [2023-08-29 02:38:31,082 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 143 transitions, 784 flow [2023-08-29 02:38:31,101 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 143 transitions, 752 flow, removed 5 selfloop flow, removed 2 redundant places. [2023-08-29 02:38:31,103 INFO L231 Difference]: Finished difference. Result has 91 places, 105 transitions, 422 flow [2023-08-29 02:38:31,103 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=320, PETRI_DIFFERENCE_MINUEND_FLOW=399, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=422, PETRI_PLACES=91, PETRI_TRANSITIONS=105} [2023-08-29 02:38:31,103 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, 7 predicate places. [2023-08-29 02:38:31,104 INFO L495 AbstractCegarLoop]: Abstraction has has 91 places, 105 transitions, 422 flow [2023-08-29 02:38:31,104 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 183.66666666666666) internal successors, (551), 3 states have internal predecessors, (551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:38:31,104 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:38:31,104 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 02:38:31,104 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-29 02:38:31,105 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2023-08-29 02:38:31,105 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:38:31,105 INFO L85 PathProgramCache]: Analyzing trace with hash -1907059090, now seen corresponding path program 1 times [2023-08-29 02:38:31,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:38:31,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122400811] [2023-08-29 02:38:31,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:38:31,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:38:31,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:38:31,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:38:31,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:38:31,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122400811] [2023-08-29 02:38:31,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122400811] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:38:31,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:38:31,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-29 02:38:31,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106345861] [2023-08-29 02:38:31,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:38:31,216 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-29 02:38:31,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:38:31,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-29 02:38:31,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-29 02:38:31,265 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 320 [2023-08-29 02:38:31,266 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 105 transitions, 422 flow. Second operand has 4 states, 4 states have (on average 171.75) internal successors, (687), 4 states have internal predecessors, (687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:38:31,266 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:38:31,266 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 320 [2023-08-29 02:38:31,271 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:38:31,659 INFO L130 PetriNetUnfolder]: 1732/4633 cut-off events. [2023-08-29 02:38:31,659 INFO L131 PetriNetUnfolder]: For 2357/2472 co-relation queries the response was YES. [2023-08-29 02:38:31,665 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12340 conditions, 4633 events. 1732/4633 cut-off events. For 2357/2472 co-relation queries the response was YES. Maximal size of possible extension queue 140. Compared 36122 event pairs, 613 based on Foata normal form. 754/5330 useless extension candidates. Maximal degree in co-relation 8203. Up to 2246 conditions per place. [2023-08-29 02:38:31,670 INFO L137 encePairwiseOnDemand]: 301/320 looper letters, 63 selfloop transitions, 21 changer transitions 23/129 dead transitions. [2023-08-29 02:38:31,670 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 129 transitions, 679 flow [2023-08-29 02:38:31,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-29 02:38:31,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-29 02:38:31,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 766 transitions. [2023-08-29 02:38:31,672 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5984375 [2023-08-29 02:38:31,672 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 766 transitions. [2023-08-29 02:38:31,672 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 766 transitions. [2023-08-29 02:38:31,672 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:38:31,673 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 766 transitions. [2023-08-29 02:38:31,674 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 191.5) internal successors, (766), 4 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 02:38:31,675 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 320.0) internal successors, (1600), 5 states have internal predecessors, (1600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:38:31,676 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 320.0) internal successors, (1600), 5 states have internal predecessors, (1600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:38:31,676 INFO L175 Difference]: Start difference. First operand has 91 places, 105 transitions, 422 flow. Second operand 4 states and 766 transitions. [2023-08-29 02:38:31,676 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 129 transitions, 679 flow [2023-08-29 02:38:31,683 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 129 transitions, 619 flow, removed 20 selfloop flow, removed 5 redundant places. [2023-08-29 02:38:31,684 INFO L231 Difference]: Finished difference. Result has 85 places, 86 transitions, 355 flow [2023-08-29 02:38:31,684 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=320, PETRI_DIFFERENCE_MINUEND_FLOW=267, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=355, PETRI_PLACES=85, PETRI_TRANSITIONS=86} [2023-08-29 02:38:31,685 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, 1 predicate places. [2023-08-29 02:38:31,685 INFO L495 AbstractCegarLoop]: Abstraction has has 85 places, 86 transitions, 355 flow [2023-08-29 02:38:31,685 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 171.75) internal successors, (687), 4 states have internal predecessors, (687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:38:31,685 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 02:38:31,686 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:38:31,686 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-29 02:38:31,686 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2023-08-29 02:38:31,686 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 02:38:31,686 INFO L85 PathProgramCache]: Analyzing trace with hash -1930655632, now seen corresponding path program 1 times [2023-08-29 02:38:31,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 02:38:31,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416638744] [2023-08-29 02:38:31,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 02:38:31,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 02:38:31,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 02:38:31,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 02:38:31,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 02:38:31,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416638744] [2023-08-29 02:38:31,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1416638744] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 02:38:31,794 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 02:38:31,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-29 02:38:31,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534489392] [2023-08-29 02:38:31,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 02:38:31,795 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-29 02:38:31,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 02:38:31,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-29 02:38:31,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-08-29 02:38:31,856 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 165 out of 320 [2023-08-29 02:38:31,857 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 86 transitions, 355 flow. Second operand has 5 states, 5 states have (on average 171.6) internal successors, (858), 5 states have internal predecessors, (858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:38:31,857 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 02:38:31,857 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 165 of 320 [2023-08-29 02:38:31,857 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 02:38:32,169 INFO L130 PetriNetUnfolder]: 1036/3314 cut-off events. [2023-08-29 02:38:32,169 INFO L131 PetriNetUnfolder]: For 1972/1990 co-relation queries the response was YES. [2023-08-29 02:38:32,174 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10082 conditions, 3314 events. 1036/3314 cut-off events. For 1972/1990 co-relation queries the response was YES. Maximal size of possible extension queue 108. Compared 25586 event pairs, 425 based on Foata normal form. 116/3382 useless extension candidates. Maximal degree in co-relation 6953. Up to 1925 conditions per place. [2023-08-29 02:38:32,176 INFO L137 encePairwiseOnDemand]: 301/320 looper letters, 0 selfloop transitions, 0 changer transitions 123/123 dead transitions. [2023-08-29 02:38:32,176 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 123 transitions, 704 flow [2023-08-29 02:38:32,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-29 02:38:32,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-29 02:38:32,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 758 transitions. [2023-08-29 02:38:32,178 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5921875 [2023-08-29 02:38:32,178 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 758 transitions. [2023-08-29 02:38:32,178 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 758 transitions. [2023-08-29 02:38:32,179 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 02:38:32,179 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 758 transitions. [2023-08-29 02:38:32,180 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 189.5) internal successors, (758), 4 states have internal predecessors, (758), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:38:32,181 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 320.0) internal successors, (1600), 5 states have internal predecessors, (1600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:38:32,182 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 320.0) internal successors, (1600), 5 states have internal predecessors, (1600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:38:32,182 INFO L175 Difference]: Start difference. First operand has 85 places, 86 transitions, 355 flow. Second operand 4 states and 758 transitions. [2023-08-29 02:38:32,182 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 123 transitions, 704 flow [2023-08-29 02:38:32,186 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 123 transitions, 685 flow, removed 3 selfloop flow, removed 5 redundant places. [2023-08-29 02:38:32,186 INFO L231 Difference]: Finished difference. Result has 80 places, 0 transitions, 0 flow [2023-08-29 02:38:32,187 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=320, PETRI_DIFFERENCE_MINUEND_FLOW=304, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=80, PETRI_TRANSITIONS=0} [2023-08-29 02:38:32,187 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, -4 predicate places. [2023-08-29 02:38:32,187 INFO L495 AbstractCegarLoop]: Abstraction has has 80 places, 0 transitions, 0 flow [2023-08-29 02:38:32,188 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 171.6) internal successors, (858), 5 states have internal predecessors, (858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 02:38:32,190 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr0ASSERT_VIOLATIONDATA_RACE (23 of 24 remaining) [2023-08-29 02:38:32,191 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr1ASSERT_VIOLATIONDATA_RACE (22 of 24 remaining) [2023-08-29 02:38:32,191 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr2ASSERT_VIOLATIONDATA_RACE (21 of 24 remaining) [2023-08-29 02:38:32,191 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr3ASSERT_VIOLATIONDATA_RACE (20 of 24 remaining) [2023-08-29 02:38:32,192 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (19 of 24 remaining) [2023-08-29 02:38:32,192 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (18 of 24 remaining) [2023-08-29 02:38:32,192 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (17 of 24 remaining) [2023-08-29 02:38:32,192 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (16 of 24 remaining) [2023-08-29 02:38:32,192 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (15 of 24 remaining) [2023-08-29 02:38:32,192 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (14 of 24 remaining) [2023-08-29 02:38:32,193 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 24 remaining) [2023-08-29 02:38:32,193 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 24 remaining) [2023-08-29 02:38:32,193 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (11 of 24 remaining) [2023-08-29 02:38:32,193 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (10 of 24 remaining) [2023-08-29 02:38:32,193 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONDATA_RACE (9 of 24 remaining) [2023-08-29 02:38:32,194 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONDATA_RACE (8 of 24 remaining) [2023-08-29 02:38:32,194 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 24 remaining) [2023-08-29 02:38:32,194 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr1ASSERT_VIOLATIONDATA_RACE (6 of 24 remaining) [2023-08-29 02:38:32,194 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr2ASSERT_VIOLATIONDATA_RACE (5 of 24 remaining) [2023-08-29 02:38:32,194 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 24 remaining) [2023-08-29 02:38:32,195 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 24 remaining) [2023-08-29 02:38:32,195 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 24 remaining) [2023-08-29 02:38:32,195 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONDATA_RACE (1 of 24 remaining) [2023-08-29 02:38:32,195 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 24 remaining) [2023-08-29 02:38:32,195 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-29 02:38:32,196 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 02:38:32,199 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-29 02:38:32,199 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-29 02:38:32,201 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 02:38:32 BasicIcfg [2023-08-29 02:38:32,202 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-29 02:38:32,202 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-29 02:38:32,202 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-29 02:38:32,202 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-29 02:38:32,203 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 02:38:19" (3/4) ... [2023-08-29 02:38:32,204 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-29 02:38:32,208 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t2_fun [2023-08-29 02:38:32,208 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2023-08-29 02:38:32,211 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2023-08-29 02:38:32,212 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-08-29 02:38:32,212 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-29 02:38:32,212 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-29 02:38:32,252 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-29 02:38:32,252 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-29 02:38:32,253 INFO L158 Benchmark]: Toolchain (without parser) took 14058.78ms. Allocated memory was 75.5MB in the beginning and 5.4GB in the end (delta: 5.3GB). Free memory was 52.5MB in the beginning and 4.1GB in the end (delta: -4.1GB). Peak memory consumption was 1.2GB. Max. memory is 16.1GB. [2023-08-29 02:38:32,253 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 75.5MB. Free memory is still 53.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 02:38:32,253 INFO L158 Benchmark]: CACSL2BoogieTranslator took 341.93ms. Allocated memory is still 75.5MB. Free memory was 52.5MB in the beginning and 32.4MB in the end (delta: 20.1MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-08-29 02:38:32,253 INFO L158 Benchmark]: Boogie Procedure Inliner took 73.11ms. Allocated memory is still 75.5MB. Free memory was 32.4MB in the beginning and 55.6MB in the end (delta: -23.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-29 02:38:32,254 INFO L158 Benchmark]: Boogie Preprocessor took 43.49ms. Allocated memory is still 75.5MB. Free memory was 55.6MB in the beginning and 53.6MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 02:38:32,254 INFO L158 Benchmark]: RCFGBuilder took 456.46ms. Allocated memory is still 75.5MB. Free memory was 53.6MB in the beginning and 33.9MB in the end (delta: 19.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-08-29 02:38:32,254 INFO L158 Benchmark]: TraceAbstraction took 13089.30ms. Allocated memory was 75.5MB in the beginning and 5.4GB in the end (delta: 5.3GB). Free memory was 33.3MB in the beginning and 4.1GB in the end (delta: -4.1GB). Peak memory consumption was 1.2GB. Max. memory is 16.1GB. [2023-08-29 02:38:32,254 INFO L158 Benchmark]: Witness Printer took 50.27ms. Allocated memory is still 5.4GB. Free memory was 4.1GB in the beginning and 4.1GB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-29 02:38:32,255 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 75.5MB. Free memory is still 53.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 341.93ms. Allocated memory is still 75.5MB. Free memory was 52.5MB in the beginning and 32.4MB in the end (delta: 20.1MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 73.11ms. Allocated memory is still 75.5MB. Free memory was 32.4MB in the beginning and 55.6MB in the end (delta: -23.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.49ms. Allocated memory is still 75.5MB. Free memory was 55.6MB in the beginning and 53.6MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 456.46ms. Allocated memory is still 75.5MB. Free memory was 53.6MB in the beginning and 33.9MB in the end (delta: 19.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 13089.30ms. Allocated memory was 75.5MB in the beginning and 5.4GB in the end (delta: 5.3GB). Free memory was 33.3MB in the beginning and 4.1GB in the end (delta: -4.1GB). Peak memory consumption was 1.2GB. Max. memory is 16.1GB. * Witness Printer took 50.27ms. Allocated memory is still 5.4GB. Free memory was 4.1GB in the beginning and 4.1GB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.4s, 191 PlacesBefore, 84 PlacesAfterwards, 188 TransitionsBefore, 78 TransitionsAfterwards, 12444 CoEnabledTransitionPairs, 7 FixpointIterations, 36 TrivialSequentialCompositions, 75 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 3 ChoiceCompositions, 121 TotalNumberOfCompositions, 57434 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 13262, independent: 12276, independent conditional: 0, independent unconditional: 12276, dependent: 986, dependent conditional: 0, dependent unconditional: 986, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 5561, independent: 5440, independent conditional: 0, independent unconditional: 5440, dependent: 121, dependent conditional: 0, dependent unconditional: 121, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 13262, independent: 6836, independent conditional: 0, independent unconditional: 6836, dependent: 865, dependent conditional: 0, dependent unconditional: 865, unknown: 5561, unknown conditional: 0, unknown unconditional: 5561] , Statistics on independence cache: Total cache size (in pairs): 664, Positive cache size: 598, Positive conditional cache size: 0, Positive unconditional cache size: 598, Negative cache size: 66, Negative conditional cache size: 0, Negative unconditional cache size: 66, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 699]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 699]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 702]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 702]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 714]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 718]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 721]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 725]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 728]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 729]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 688]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 688]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 691]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 691]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 268 locations, 24 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 13.0s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 8.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 877 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 587 mSDsluCounter, 34 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8 mSDsCounter, 147 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1405 IncrementalHoareTripleChecker+Invalid, 1552 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 147 mSolverCounterUnsat, 26 mSDtfsCounter, 1405 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=425occurred in iteration=6, InterpolantAutomatonStates: 30, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 148 NumberOfCodeBlocks, 148 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 139 ConstructedInterpolants, 0 QuantifiedInterpolants, 395 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 14 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-29 02:38:32,275 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE