./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/weaver/chl-nzb-file-trans.wvr.c --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/weaver/chl-nzb-file-trans.wvr.c -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 586b4acd2b590d05e6c872ab286b63f1e9a66197df0a80de4a917f3d7db6c786 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-29 18:53:51,254 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 18:53:51,257 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 18:53:51,300 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 18:53:51,302 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 18:53:51,305 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 18:53:51,306 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 18:53:51,309 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 18:53:51,311 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 18:53:51,315 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 18:53:51,315 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 18:53:51,318 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 18:53:51,318 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 18:53:51,320 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 18:53:51,321 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 18:53:51,326 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 18:53:51,326 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 18:53:51,328 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 18:53:51,329 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 18:53:51,331 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 18:53:51,335 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 18:53:51,336 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 18:53:51,344 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 18:53:51,349 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 18:53:51,354 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 18:53:51,357 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 18:53:51,358 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 18:53:51,359 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 18:53:51,360 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 18:53:51,361 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 18:53:51,361 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 18:53:51,364 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 18:53:51,365 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 18:53:51,366 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 18:53:51,367 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 18:53:51,367 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 18:53:51,368 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 18:53:51,368 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 18:53:51,369 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 18:53:51,369 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 18:53:51,370 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 18:53:51,371 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-29 18:53:51,394 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 18:53:51,395 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 18:53:51,396 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 18:53:51,396 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 18:53:51,397 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 18:53:51,397 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 18:53:51,398 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 18:53:51,398 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 18:53:51,398 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 18:53:51,399 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 18:53:51,399 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 18:53:51,399 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 18:53:51,400 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 18:53:51,400 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 18:53:51,400 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 18:53:51,400 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-29 18:53:51,400 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 18:53:51,401 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-29 18:53:51,401 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-29 18:53:51,401 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 18:53:51,401 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-29 18:53:51,401 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 18:53:51,401 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-29 18:53:51,402 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 18:53:51,402 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 18:53:51,402 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 18:53:51,402 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 18:53:51,403 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 18:53:51,403 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 18:53:51,403 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-29 18:53:51,403 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 18:53:51,403 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 18:53:51,404 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 18:53:51,404 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-29 18:53:51,404 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 18:53:51,404 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 18:53:51,404 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 18:53:51,405 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 586b4acd2b590d05e6c872ab286b63f1e9a66197df0a80de4a917f3d7db6c786 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-29 18:53:51,724 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 18:53:51,744 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 18:53:51,747 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 18:53:51,748 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 18:53:51,749 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 18:53:51,750 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-nzb-file-trans.wvr.c [2023-08-29 18:53:52,949 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 18:53:53,167 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 18:53:53,167 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-nzb-file-trans.wvr.c [2023-08-29 18:53:53,174 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ddb7e7873/3e32044870c1479a83c1e4e34096b0c7/FLAGdfa88ee3f [2023-08-29 18:53:53,189 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ddb7e7873/3e32044870c1479a83c1e4e34096b0c7 [2023-08-29 18:53:53,191 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 18:53:53,193 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 18:53:53,194 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 18:53:53,194 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 18:53:53,197 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 18:53:53,197 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 06:53:53" (1/1) ... [2023-08-29 18:53:53,198 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@373eba1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:53:53, skipping insertion in model container [2023-08-29 18:53:53,199 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 06:53:53" (1/1) ... [2023-08-29 18:53:53,204 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 18:53:53,224 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 18:53:53,424 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-nzb-file-trans.wvr.c[6450,6463] [2023-08-29 18:53:53,429 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 18:53:53,437 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 18:53:53,483 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-nzb-file-trans.wvr.c[6450,6463] [2023-08-29 18:53:53,486 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 18:53:53,507 INFO L208 MainTranslator]: Completed translation [2023-08-29 18:53:53,508 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:53:53 WrapperNode [2023-08-29 18:53:53,508 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 18:53:53,509 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 18:53:53,509 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 18:53:53,510 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 18:53:53,515 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:53:53" (1/1) ... [2023-08-29 18:53:53,533 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:53:53" (1/1) ... [2023-08-29 18:53:53,585 INFO L138 Inliner]: procedures = 26, calls = 76, calls flagged for inlining = 28, calls inlined = 42, statements flattened = 1332 [2023-08-29 18:53:53,586 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 18:53:53,586 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 18:53:53,586 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 18:53:53,587 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 18:53:53,607 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:53:53" (1/1) ... [2023-08-29 18:53:53,608 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:53:53" (1/1) ... [2023-08-29 18:53:53,616 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:53:53" (1/1) ... [2023-08-29 18:53:53,617 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:53:53" (1/1) ... [2023-08-29 18:53:53,649 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:53:53" (1/1) ... [2023-08-29 18:53:53,671 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:53:53" (1/1) ... [2023-08-29 18:53:53,680 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:53:53" (1/1) ... [2023-08-29 18:53:53,683 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:53:53" (1/1) ... [2023-08-29 18:53:53,695 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 18:53:53,697 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 18:53:53,697 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 18:53:53,698 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 18:53:53,701 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:53:53" (1/1) ... [2023-08-29 18:53:53,706 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 18:53:53,719 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 18:53:53,733 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-29 18:53:53,759 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-29 18:53:53,772 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-29 18:53:53,773 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 18:53:53,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-29 18:53:53,774 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-29 18:53:53,774 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-29 18:53:53,775 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-29 18:53:53,775 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-29 18:53:53,775 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-29 18:53:53,775 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-08-29 18:53:53,776 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-08-29 18:53:53,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-29 18:53:53,776 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-29 18:53:53,776 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 18:53:53,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 18:53:53,776 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 18:53:53,779 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-29 18:53:53,970 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 18:53:53,972 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 18:53:55,290 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 18:53:55,306 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 18:53:55,306 INFO L302 CfgBuilder]: Removed 6 assume(true) statements. [2023-08-29 18:53:55,309 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 06:53:55 BoogieIcfgContainer [2023-08-29 18:53:55,309 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 18:53:55,311 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 18:53:55,311 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 18:53:55,314 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 18:53:55,314 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 06:53:53" (1/3) ... [2023-08-29 18:53:55,314 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6dbae6eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 06:53:55, skipping insertion in model container [2023-08-29 18:53:55,315 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:53:53" (2/3) ... [2023-08-29 18:53:55,315 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6dbae6eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 06:53:55, skipping insertion in model container [2023-08-29 18:53:55,315 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 06:53:55" (3/3) ... [2023-08-29 18:53:55,316 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-nzb-file-trans.wvr.c [2023-08-29 18:53:55,323 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-29 18:53:55,331 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 18:53:55,332 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 228 error locations. [2023-08-29 18:53:55,332 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 18:53:55,561 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-08-29 18:53:55,624 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1602 places, 1703 transitions, 3430 flow [2023-08-29 18:53:56,945 INFO L130 PetriNetUnfolder]: 111/1700 cut-off events. [2023-08-29 18:53:56,946 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-08-29 18:53:56,992 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1713 conditions, 1700 events. 111/1700 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 7417 event pairs, 0 based on Foata normal form. 0/1361 useless extension candidates. Maximal degree in co-relation 1328. Up to 2 conditions per place. [2023-08-29 18:53:56,993 INFO L82 GeneralOperation]: Start removeDead. Operand has 1602 places, 1703 transitions, 3430 flow [2023-08-29 18:53:57,050 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1580 places, 1679 transitions, 3376 flow [2023-08-29 18:53:57,054 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 18:53:57,062 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1580 places, 1679 transitions, 3376 flow [2023-08-29 18:53:57,065 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1580 places, 1679 transitions, 3376 flow [2023-08-29 18:53:57,066 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1580 places, 1679 transitions, 3376 flow [2023-08-29 18:53:57,889 INFO L130 PetriNetUnfolder]: 109/1679 cut-off events. [2023-08-29 18:53:57,889 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-08-29 18:53:57,922 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1692 conditions, 1679 events. 109/1679 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 7292 event pairs, 0 based on Foata normal form. 0/1343 useless extension candidates. Maximal degree in co-relation 1328. Up to 2 conditions per place. [2023-08-29 18:53:58,238 INFO L119 LiptonReduction]: Number of co-enabled transitions 1187286 [2023-08-29 18:54:32,181 INFO L134 LiptonReduction]: Checked pairs total: 3246752 [2023-08-29 18:54:32,181 INFO L136 LiptonReduction]: Total number of compositions: 1863 [2023-08-29 18:54:32,197 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 18:54:32,203 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;@5806cb20, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 18:54:32,204 INFO L358 AbstractCegarLoop]: Starting to check reachability of 429 error locations. [2023-08-29 18:54:32,205 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-29 18:54:32,206 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 18:54:32,206 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:54:32,207 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-29 18:54:32,207 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 425 more)] === [2023-08-29 18:54:32,211 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:54:32,212 INFO L85 PathProgramCache]: Analyzing trace with hash 6994, now seen corresponding path program 1 times [2023-08-29 18:54:32,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:54:32,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606784933] [2023-08-29 18:54:32,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:54:32,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:54:32,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:54:32,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 18:54:32,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:54:32,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606784933] [2023-08-29 18:54:32,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [606784933] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:54:32,327 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:54:32,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-29 18:54:32,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352842712] [2023-08-29 18:54:32,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:54:32,335 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-29 18:54:32,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:54:32,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-29 18:54:32,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-29 18:54:32,372 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1659 out of 3566 [2023-08-29 18:54:32,380 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 455 places, 494 transitions, 1006 flow. Second operand has 2 states, 2 states have (on average 1659.5) internal successors, (3319), 2 states have internal predecessors, (3319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:54:32,381 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:54:32,381 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1659 of 3566 [2023-08-29 18:54:32,382 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:55:54,094 INFO L130 PetriNetUnfolder]: 770085/1233222 cut-off events. [2023-08-29 18:55:54,095 INFO L131 PetriNetUnfolder]: For 9395/10408 co-relation queries the response was YES. [2023-08-29 18:55:57,132 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2245478 conditions, 1233222 events. 770085/1233222 cut-off events. For 9395/10408 co-relation queries the response was YES. Maximal size of possible extension queue 20513. Compared 13083482 event pairs, 568454 based on Foata normal form. 9785/1028470 useless extension candidates. Maximal degree in co-relation 2201559. Up to 1005193 conditions per place. [2023-08-29 18:56:04,699 INFO L137 encePairwiseOnDemand]: 3421/3566 looper letters, 201 selfloop transitions, 0 changer transitions 1/349 dead transitions. [2023-08-29 18:56:04,700 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 315 places, 349 transitions, 1120 flow [2023-08-29 18:56:04,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-29 18:56:04,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-29 18:56:04,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 3665 transitions. [2023-08-29 18:56:04,729 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5138810992708918 [2023-08-29 18:56:04,730 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 3665 transitions. [2023-08-29 18:56:04,730 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 3665 transitions. [2023-08-29 18:56:04,736 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:56:04,738 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 3665 transitions. [2023-08-29 18:56:04,769 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 1832.5) internal successors, (3665), 2 states have internal predecessors, (3665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:56:04,810 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 3566.0) internal successors, (10698), 3 states have internal predecessors, (10698), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:56:04,816 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 3566.0) internal successors, (10698), 3 states have internal predecessors, (10698), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:56:04,830 INFO L175 Difference]: Start difference. First operand has 455 places, 494 transitions, 1006 flow. Second operand 2 states and 3665 transitions. [2023-08-29 18:56:04,831 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 315 places, 349 transitions, 1120 flow [2023-08-29 18:56:05,011 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 309 places, 349 transitions, 1108 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-08-29 18:56:05,034 INFO L231 Difference]: Finished difference. Result has 309 places, 348 transitions, 701 flow [2023-08-29 18:56:05,036 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=3566, PETRI_DIFFERENCE_MINUEND_FLOW=704, PETRI_DIFFERENCE_MINUEND_PLACES=308, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=349, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=349, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=701, PETRI_PLACES=309, PETRI_TRANSITIONS=348} [2023-08-29 18:56:05,039 INFO L281 CegarLoopForPetriNet]: 455 programPoint places, -146 predicate places. [2023-08-29 18:56:05,040 INFO L495 AbstractCegarLoop]: Abstraction has has 309 places, 348 transitions, 701 flow [2023-08-29 18:56:05,042 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 1659.5) internal successors, (3319), 2 states have internal predecessors, (3319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:56:05,044 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:56:05,044 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:56:05,046 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-29 18:56:05,061 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 425 more)] === [2023-08-29 18:56:05,064 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:56:05,065 INFO L85 PathProgramCache]: Analyzing trace with hash 519432631, now seen corresponding path program 1 times [2023-08-29 18:56:05,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:56:05,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727397919] [2023-08-29 18:56:05,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:56:05,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:56:05,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:56:05,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 18:56:05,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:56:05,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727397919] [2023-08-29 18:56:05,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727397919] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:56:05,502 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:56:05,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-29 18:56:05,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49421561] [2023-08-29 18:56:05,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:56:05,503 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 18:56:05,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:56:05,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 18:56:05,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 18:56:05,575 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1647 out of 3566 [2023-08-29 18:56:05,583 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 309 places, 348 transitions, 701 flow. Second operand has 3 states, 3 states have (on average 1649.0) internal successors, (4947), 3 states have internal predecessors, (4947), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:56:05,583 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:56:05,583 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1647 of 3566 [2023-08-29 18:56:05,583 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:57:27,800 INFO L130 PetriNetUnfolder]: 770085/1233224 cut-off events. [2023-08-29 18:57:27,801 INFO L131 PetriNetUnfolder]: For 2350/3363 co-relation queries the response was YES. [2023-08-29 18:57:30,283 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2240774 conditions, 1233224 events. 770085/1233224 cut-off events. For 2350/3363 co-relation queries the response was YES. Maximal size of possible extension queue 20515. Compared 13084221 event pairs, 568454 based on Foata normal form. 0/1018687 useless extension candidates. Maximal degree in co-relation 2240771. Up to 1005192 conditions per place. [2023-08-29 18:57:37,408 INFO L137 encePairwiseOnDemand]: 3559/3566 looper letters, 198 selfloop transitions, 6 changer transitions 0/351 dead transitions. [2023-08-29 18:57:37,409 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 310 places, 351 transitions, 1115 flow [2023-08-29 18:57:37,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 18:57:37,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 18:57:37,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5148 transitions. [2023-08-29 18:57:37,430 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4812114413909142 [2023-08-29 18:57:37,430 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5148 transitions. [2023-08-29 18:57:37,430 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5148 transitions. [2023-08-29 18:57:37,433 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:57:37,433 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5148 transitions. [2023-08-29 18:57:37,444 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1716.0) internal successors, (5148), 3 states have internal predecessors, (5148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:57:37,464 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 3566.0) internal successors, (14264), 4 states have internal predecessors, (14264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:57:37,472 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 3566.0) internal successors, (14264), 4 states have internal predecessors, (14264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:57:37,472 INFO L175 Difference]: Start difference. First operand has 309 places, 348 transitions, 701 flow. Second operand 3 states and 5148 transitions. [2023-08-29 18:57:37,473 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 310 places, 351 transitions, 1115 flow [2023-08-29 18:57:37,476 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 310 places, 351 transitions, 1115 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 18:57:37,496 INFO L231 Difference]: Finished difference. Result has 311 places, 351 transitions, 733 flow [2023-08-29 18:57:37,497 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=3566, PETRI_DIFFERENCE_MINUEND_FLOW=701, PETRI_DIFFERENCE_MINUEND_PLACES=308, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=348, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=342, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=733, PETRI_PLACES=311, PETRI_TRANSITIONS=351} [2023-08-29 18:57:37,498 INFO L281 CegarLoopForPetriNet]: 455 programPoint places, -144 predicate places. [2023-08-29 18:57:37,498 INFO L495 AbstractCegarLoop]: Abstraction has has 311 places, 351 transitions, 733 flow [2023-08-29 18:57:37,500 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1649.0) internal successors, (4947), 3 states have internal predecessors, (4947), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:57:37,500 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:57:37,500 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:57:37,501 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-29 18:57:37,501 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 425 more)] === [2023-08-29 18:57:37,503 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:57:37,503 INFO L85 PathProgramCache]: Analyzing trace with hash -1959384491, now seen corresponding path program 1 times [2023-08-29 18:57:37,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:57:37,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251669034] [2023-08-29 18:57:37,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:57:37,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:57:37,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:57:37,621 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-29 18:57:37,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:57:37,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251669034] [2023-08-29 18:57:37,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1251669034] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:57:37,623 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:57:37,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 18:57:37,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61062331] [2023-08-29 18:57:37,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:57:37,624 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 18:57:37,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:57:37,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 18:57:37,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 18:57:37,657 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1634 out of 3566 [2023-08-29 18:57:37,673 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 311 places, 351 transitions, 733 flow. Second operand has 3 states, 3 states have (on average 1637.3333333333333) internal successors, (4912), 3 states have internal predecessors, (4912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:57:37,675 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:57:37,675 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1634 of 3566 [2023-08-29 18:57:37,675 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:59:03,945 INFO L130 PetriNetUnfolder]: 784312/1250587 cut-off events. [2023-08-29 18:59:03,946 INFO L131 PetriNetUnfolder]: For 2349/2349 co-relation queries the response was YES. [2023-08-29 18:59:06,097 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2277081 conditions, 1250587 events. 784312/1250587 cut-off events. For 2349/2349 co-relation queries the response was YES. Maximal size of possible extension queue 20822. Compared 13196498 event pairs, 369178 based on Foata normal form. 0/1030272 useless extension candidates. Maximal degree in co-relation 2277076. Up to 1023729 conditions per place. [2023-08-29 18:59:11,309 INFO L137 encePairwiseOnDemand]: 3554/3566 looper letters, 270 selfloop transitions, 4 changer transitions 0/412 dead transitions. [2023-08-29 18:59:11,309 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 305 places, 412 transitions, 1405 flow [2023-08-29 18:59:11,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 18:59:11,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 18:59:11,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5181 transitions. [2023-08-29 18:59:11,344 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.484296130117779 [2023-08-29 18:59:11,344 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5181 transitions. [2023-08-29 18:59:11,350 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5181 transitions. [2023-08-29 18:59:11,353 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:59:11,354 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5181 transitions. [2023-08-29 18:59:11,363 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1727.0) internal successors, (5181), 3 states have internal predecessors, (5181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:59:11,378 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 3566.0) internal successors, (14264), 4 states have internal predecessors, (14264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:59:11,381 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 3566.0) internal successors, (14264), 4 states have internal predecessors, (14264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:59:11,381 INFO L175 Difference]: Start difference. First operand has 311 places, 351 transitions, 733 flow. Second operand 3 states and 5181 transitions. [2023-08-29 18:59:11,381 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 305 places, 412 transitions, 1405 flow [2023-08-29 18:59:11,385 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 304 places, 412 transitions, 1399 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 18:59:11,392 INFO L231 Difference]: Finished difference. Result has 305 places, 347 transitions, 739 flow [2023-08-29 18:59:11,393 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=3566, PETRI_DIFFERENCE_MINUEND_FLOW=711, PETRI_DIFFERENCE_MINUEND_PLACES=302, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=343, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=339, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=739, PETRI_PLACES=305, PETRI_TRANSITIONS=347} [2023-08-29 18:59:11,394 INFO L281 CegarLoopForPetriNet]: 455 programPoint places, -150 predicate places. [2023-08-29 18:59:11,396 INFO L495 AbstractCegarLoop]: Abstraction has has 305 places, 347 transitions, 739 flow [2023-08-29 18:59:11,398 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1637.3333333333333) internal successors, (4912), 3 states have internal predecessors, (4912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:59:11,398 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:59:11,398 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:59:11,399 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-29 18:59:11,399 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 425 more)] === [2023-08-29 18:59:11,399 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:59:11,399 INFO L85 PathProgramCache]: Analyzing trace with hash -1770778908, now seen corresponding path program 1 times [2023-08-29 18:59:11,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:59:11,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081055724] [2023-08-29 18:59:11,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:59:11,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:59:11,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:59:11,496 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-29 18:59:11,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:59:11,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081055724] [2023-08-29 18:59:11,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2081055724] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:59:11,497 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:59:11,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 18:59:11,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552490545] [2023-08-29 18:59:11,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:59:11,498 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 18:59:11,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:59:11,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 18:59:11,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 18:59:11,535 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1634 out of 3566 [2023-08-29 18:59:11,539 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 305 places, 347 transitions, 739 flow. Second operand has 3 states, 3 states have (on average 1638.0) internal successors, (4914), 3 states have internal predecessors, (4914), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:59:11,542 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:59:11,543 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1634 of 3566 [2023-08-29 18:59:11,543 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 19:00:45,729 INFO L130 PetriNetUnfolder]: 802935/1276802 cut-off events. [2023-08-29 19:00:45,729 INFO L131 PetriNetUnfolder]: For 11985/12261 co-relation queries the response was YES. [2023-08-29 19:00:48,028 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2347648 conditions, 1276802 events. 802935/1276802 cut-off events. For 11985/12261 co-relation queries the response was YES. Maximal size of possible extension queue 21398. Compared 13463535 event pairs, 321146 based on Foata normal form. 0/1057867 useless extension candidates. Maximal degree in co-relation 2347643. Up to 1044046 conditions per place. [2023-08-29 19:00:54,377 INFO L137 encePairwiseOnDemand]: 3552/3566 looper letters, 299 selfloop transitions, 6 changer transitions 0/434 dead transitions. [2023-08-29 19:00:54,377 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 299 places, 434 transitions, 1546 flow [2023-08-29 19:00:54,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 19:00:54,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 19:00:54,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5204 transitions. [2023-08-29 19:00:54,395 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48644606468498786 [2023-08-29 19:00:54,395 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5204 transitions. [2023-08-29 19:00:54,395 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5204 transitions. [2023-08-29 19:00:54,398 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 19:00:54,398 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5204 transitions. [2023-08-29 19:00:54,434 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1734.6666666666667) internal successors, (5204), 3 states have internal predecessors, (5204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:00:54,447 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 3566.0) internal successors, (14264), 4 states have internal predecessors, (14264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:00:54,464 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 3566.0) internal successors, (14264), 4 states have internal predecessors, (14264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:00:54,464 INFO L175 Difference]: Start difference. First operand has 305 places, 347 transitions, 739 flow. Second operand 3 states and 5204 transitions. [2023-08-29 19:00:54,465 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 299 places, 434 transitions, 1546 flow [2023-08-29 19:00:54,468 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 299 places, 434 transitions, 1546 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 19:00:54,473 INFO L231 Difference]: Finished difference. Result has 300 places, 345 transitions, 765 flow [2023-08-29 19:00:54,474 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=3566, PETRI_DIFFERENCE_MINUEND_FLOW=723, PETRI_DIFFERENCE_MINUEND_PLACES=297, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=339, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=333, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=765, PETRI_PLACES=300, PETRI_TRANSITIONS=345} [2023-08-29 19:00:54,475 INFO L281 CegarLoopForPetriNet]: 455 programPoint places, -155 predicate places. [2023-08-29 19:00:54,476 INFO L495 AbstractCegarLoop]: Abstraction has has 300 places, 345 transitions, 765 flow [2023-08-29 19:00:54,477 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1638.0) internal successors, (4914), 3 states have internal predecessors, (4914), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:00:54,477 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 19:00:54,478 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 19:00:54,478 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-29 19:00:54,478 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 425 more)] === [2023-08-29 19:00:54,478 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 19:00:54,479 INFO L85 PathProgramCache]: Analyzing trace with hash -1540414016, now seen corresponding path program 1 times [2023-08-29 19:00:54,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 19:00:54,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339936650] [2023-08-29 19:00:54,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 19:00:54,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 19:00:54,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 19:00:54,539 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-29 19:00:54,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 19:00:54,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339936650] [2023-08-29 19:00:54,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339936650] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 19:00:54,541 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 19:00:54,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 19:00:54,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440241998] [2023-08-29 19:00:54,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 19:00:54,542 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 19:00:54,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 19:00:54,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 19:00:54,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 19:00:54,566 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1634 out of 3566 [2023-08-29 19:00:54,570 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 300 places, 345 transitions, 765 flow. Second operand has 3 states, 3 states have (on average 1638.6666666666667) internal successors, (4916), 3 states have internal predecessors, (4916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:00:54,570 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 19:00:54,581 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1634 of 3566 [2023-08-29 19:00:54,581 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 19:02:38,165 INFO L130 PetriNetUnfolder]: 913046/1425804 cut-off events. [2023-08-29 19:02:38,165 INFO L131 PetriNetUnfolder]: For 32712/33722 co-relation queries the response was YES. [2023-08-29 19:02:40,911 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2677452 conditions, 1425804 events. 913046/1425804 cut-off events. For 32712/33722 co-relation queries the response was YES. Maximal size of possible extension queue 22658. Compared 14737103 event pairs, 171109 based on Foata normal form. 1/1176231 useless extension candidates. Maximal degree in co-relation 2677446. Up to 1103816 conditions per place. [2023-08-29 19:02:48,318 INFO L137 encePairwiseOnDemand]: 3550/3566 looper letters, 323 selfloop transitions, 8 changer transitions 0/453 dead transitions. [2023-08-29 19:02:48,318 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 294 places, 453 transitions, 1686 flow [2023-08-29 19:02:48,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 19:02:48,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 19:02:48,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5222 transitions. [2023-08-29 19:02:48,328 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4881286221723687 [2023-08-29 19:02:48,329 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5222 transitions. [2023-08-29 19:02:48,329 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5222 transitions. [2023-08-29 19:02:48,331 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 19:02:48,331 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5222 transitions. [2023-08-29 19:02:48,338 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1740.6666666666667) internal successors, (5222), 3 states have internal predecessors, (5222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:02:48,373 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 3566.0) internal successors, (14264), 4 states have internal predecessors, (14264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:02:48,377 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 3566.0) internal successors, (14264), 4 states have internal predecessors, (14264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:02:48,392 INFO L175 Difference]: Start difference. First operand has 300 places, 345 transitions, 765 flow. Second operand 3 states and 5222 transitions. [2023-08-29 19:02:48,393 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 294 places, 453 transitions, 1686 flow [2023-08-29 19:02:48,406 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 294 places, 453 transitions, 1686 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 19:02:48,411 INFO L231 Difference]: Finished difference. Result has 295 places, 345 transitions, 805 flow [2023-08-29 19:02:48,424 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=3566, PETRI_DIFFERENCE_MINUEND_FLOW=749, PETRI_DIFFERENCE_MINUEND_PLACES=292, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=337, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=329, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=805, PETRI_PLACES=295, PETRI_TRANSITIONS=345} [2023-08-29 19:02:48,426 INFO L281 CegarLoopForPetriNet]: 455 programPoint places, -160 predicate places. [2023-08-29 19:02:48,427 INFO L495 AbstractCegarLoop]: Abstraction has has 295 places, 345 transitions, 805 flow [2023-08-29 19:02:48,428 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1638.6666666666667) internal successors, (4916), 3 states have internal predecessors, (4916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:02:48,428 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 19:02:48,428 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 19:02:48,429 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-29 19:02:48,429 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 425 more)] === [2023-08-29 19:02:48,429 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 19:02:48,430 INFO L85 PathProgramCache]: Analyzing trace with hash 1901117234, now seen corresponding path program 1 times [2023-08-29 19:02:48,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 19:02:48,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919384800] [2023-08-29 19:02:48,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 19:02:48,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 19:02:48,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 19:02:48,487 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-29 19:02:48,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 19:02:48,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919384800] [2023-08-29 19:02:48,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [919384800] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 19:02:48,488 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 19:02:48,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 19:02:48,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661988232] [2023-08-29 19:02:48,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 19:02:48,505 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 19:02:48,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 19:02:48,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 19:02:48,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 19:02:48,538 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1634 out of 3566 [2023-08-29 19:02:48,542 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 295 places, 345 transitions, 805 flow. Second operand has 3 states, 3 states have (on average 1638.6666666666667) internal successors, (4916), 3 states have internal predecessors, (4916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 19:02:48,543 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 19:02:48,543 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1634 of 3566 [2023-08-29 19:02:48,543 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand Killed by 15