./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/weaver/chl-chromosome-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-chromosome-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 795c382fbb0026f2f6f7212254176553809c7311a8058a10cea47f6b1b03373b --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 18:50:22,217 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 18:50:22,220 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 18:50:22,265 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 18:50:22,265 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 18:50:22,269 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 18:50:22,271 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 18:50:22,274 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 18:50:22,276 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 18:50:22,282 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 18:50:22,283 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 18:50:22,286 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 18:50:22,286 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 18:50:22,288 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 18:50:22,289 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 18:50:22,294 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 18:50:22,294 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 18:50:22,296 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 18:50:22,299 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 18:50:22,302 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 18:50:22,303 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 18:50:22,304 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 18:50:22,305 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 18:50:22,321 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 18:50:22,325 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 18:50:22,325 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 18:50:22,326 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 18:50:22,327 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 18:50:22,328 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 18:50:22,328 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 18:50:22,329 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 18:50:22,330 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 18:50:22,332 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 18:50:22,332 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 18:50:22,333 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 18:50:22,335 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 18:50:22,335 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 18:50:22,335 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 18:50:22,336 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 18:50:22,336 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 18:50:22,337 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 18:50:22,338 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-29 18:50:22,374 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 18:50:22,374 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 18:50:22,375 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 18:50:22,375 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 18:50:22,376 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 18:50:22,376 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 18:50:22,377 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 18:50:22,377 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 18:50:22,377 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 18:50:22,377 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 18:50:22,378 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 18:50:22,378 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 18:50:22,379 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 18:50:22,379 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 18:50:22,379 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 18:50:22,379 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-29 18:50:22,379 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 18:50:22,379 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-29 18:50:22,380 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-29 18:50:22,380 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 18:50:22,380 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-29 18:50:22,380 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 18:50:22,380 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-29 18:50:22,380 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 18:50:22,381 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 18:50:22,381 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 18:50:22,381 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 18:50:22,381 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 18:50:22,381 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 18:50:22,382 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-29 18:50:22,382 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 18:50:22,382 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 18:50:22,382 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 18:50:22,382 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-29 18:50:22,383 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 18:50:22,383 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 18:50:22,383 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 18:50:22,383 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 795c382fbb0026f2f6f7212254176553809c7311a8058a10cea47f6b1b03373b Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-29 18:50:22,683 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 18:50:22,699 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 18:50:22,702 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 18:50:22,703 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 18:50:22,703 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 18:50:22,704 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-chromosome-trans.wvr.c [2023-08-29 18:50:23,902 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 18:50:24,122 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 18:50:24,122 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-chromosome-trans.wvr.c [2023-08-29 18:50:24,131 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e6d96a43b/7cd19c440b3d4822beba44f2e0cea2f9/FLAG416c6bc6d [2023-08-29 18:50:24,142 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e6d96a43b/7cd19c440b3d4822beba44f2e0cea2f9 [2023-08-29 18:50:24,144 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 18:50:24,145 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 18:50:24,146 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 18:50:24,146 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 18:50:24,148 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 18:50:24,148 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 06:50:24" (1/1) ... [2023-08-29 18:50:24,149 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c7cf93c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:50:24, skipping insertion in model container [2023-08-29 18:50:24,149 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 06:50:24" (1/1) ... [2023-08-29 18:50:24,154 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 18:50:24,169 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 18:50:24,308 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-chromosome-trans.wvr.c[3034,3047] [2023-08-29 18:50:24,315 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 18:50:24,323 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 18:50:24,348 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-chromosome-trans.wvr.c[3034,3047] [2023-08-29 18:50:24,353 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 18:50:24,366 INFO L208 MainTranslator]: Completed translation [2023-08-29 18:50:24,367 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:50:24 WrapperNode [2023-08-29 18:50:24,367 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 18:50:24,368 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 18:50:24,368 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 18:50:24,368 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 18:50:24,374 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:50:24" (1/1) ... [2023-08-29 18:50:24,385 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:50:24" (1/1) ... [2023-08-29 18:50:24,432 INFO L138 Inliner]: procedures = 26, calls = 46, calls flagged for inlining = 16, calls inlined = 24, statements flattened = 465 [2023-08-29 18:50:24,432 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 18:50:24,433 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 18:50:24,433 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 18:50:24,433 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 18:50:24,440 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:50:24" (1/1) ... [2023-08-29 18:50:24,441 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:50:24" (1/1) ... [2023-08-29 18:50:24,478 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:50:24" (1/1) ... [2023-08-29 18:50:24,479 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:50:24" (1/1) ... [2023-08-29 18:50:24,504 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:50:24" (1/1) ... [2023-08-29 18:50:24,516 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:50:24" (1/1) ... [2023-08-29 18:50:24,523 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:50:24" (1/1) ... [2023-08-29 18:50:24,526 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:50:24" (1/1) ... [2023-08-29 18:50:24,531 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 18:50:24,534 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 18:50:24,536 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 18:50:24,536 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 18:50:24,537 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:50:24" (1/1) ... [2023-08-29 18:50:24,542 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 18:50:24,552 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 18:50:24,566 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 18:50:24,580 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 18:50:24,604 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-29 18:50:24,605 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 18:50:24,605 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-29 18:50:24,605 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-29 18:50:24,605 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-29 18:50:24,605 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-29 18:50:24,606 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-29 18:50:24,606 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-29 18:50:24,606 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-08-29 18:50:24,606 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-08-29 18:50:24,606 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-29 18:50:24,606 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-29 18:50:24,607 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 18:50:24,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 18:50:24,607 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 18:50:24,609 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 18:50:24,729 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 18:50:24,731 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 18:50:25,509 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 18:50:25,531 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 18:50:25,532 INFO L302 CfgBuilder]: Removed 6 assume(true) statements. [2023-08-29 18:50:25,535 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 06:50:25 BoogieIcfgContainer [2023-08-29 18:50:25,535 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 18:50:25,538 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 18:50:25,538 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 18:50:25,541 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 18:50:25,542 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 06:50:24" (1/3) ... [2023-08-29 18:50:25,542 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d9aadd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 06:50:25, skipping insertion in model container [2023-08-29 18:50:25,543 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:50:24" (2/3) ... [2023-08-29 18:50:25,543 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d9aadd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 06:50:25, skipping insertion in model container [2023-08-29 18:50:25,543 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 06:50:25" (3/3) ... [2023-08-29 18:50:25,545 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-chromosome-trans.wvr.c [2023-08-29 18:50:25,552 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-29 18:50:25,560 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 18:50:25,561 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 48 error locations. [2023-08-29 18:50:25,561 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 18:50:25,698 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-08-29 18:50:25,733 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 534 places, 557 transitions, 1138 flow [2023-08-29 18:50:25,934 INFO L130 PetriNetUnfolder]: 33/554 cut-off events. [2023-08-29 18:50:25,935 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-08-29 18:50:25,949 INFO L83 FinitePrefix]: Finished finitePrefix Result has 567 conditions, 554 events. 33/554 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1241 event pairs, 0 based on Foata normal form. 0/473 useless extension candidates. Maximal degree in co-relation 398. Up to 2 conditions per place. [2023-08-29 18:50:25,949 INFO L82 GeneralOperation]: Start removeDead. Operand has 534 places, 557 transitions, 1138 flow [2023-08-29 18:50:25,962 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 512 places, 533 transitions, 1084 flow [2023-08-29 18:50:25,966 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 18:50:25,985 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 512 places, 533 transitions, 1084 flow [2023-08-29 18:50:25,992 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 512 places, 533 transitions, 1084 flow [2023-08-29 18:50:25,993 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 512 places, 533 transitions, 1084 flow [2023-08-29 18:50:26,094 INFO L130 PetriNetUnfolder]: 31/533 cut-off events. [2023-08-29 18:50:26,095 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-08-29 18:50:26,100 INFO L83 FinitePrefix]: Finished finitePrefix Result has 546 conditions, 533 events. 31/533 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1231 event pairs, 0 based on Foata normal form. 0/455 useless extension candidates. Maximal degree in co-relation 398. Up to 2 conditions per place. [2023-08-29 18:50:26,130 INFO L119 LiptonReduction]: Number of co-enabled transitions 67830 [2023-08-29 18:50:37,115 INFO L134 LiptonReduction]: Checked pairs total: 213738 [2023-08-29 18:50:37,116 INFO L136 LiptonReduction]: Total number of compositions: 539 [2023-08-29 18:50:37,136 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 18:50:37,142 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;@1227afa, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 18:50:37,143 INFO L358 AbstractCegarLoop]: Starting to check reachability of 84 error locations. [2023-08-29 18:50:37,145 INFO L130 PetriNetUnfolder]: 1/2 cut-off events. [2023-08-29 18:50:37,145 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 18:50:37,146 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:50:37,146 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2023-08-29 18:50:37,147 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 80 more)] === [2023-08-29 18:50:37,151 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:50:37,151 INFO L85 PathProgramCache]: Analyzing trace with hash 67480, now seen corresponding path program 1 times [2023-08-29 18:50:37,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:50:37,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890101118] [2023-08-29 18:50:37,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:50:37,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:50:37,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:50:37,354 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 18:50:37,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:50:37,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890101118] [2023-08-29 18:50:37,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1890101118] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:50:37,355 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:50:37,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-29 18:50:37,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598623659] [2023-08-29 18:50:37,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:50:37,363 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-29 18:50:37,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:50:37,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-29 18:50:37,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-29 18:50:37,397 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 528 out of 1096 [2023-08-29 18:50:37,403 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 139 transitions, 296 flow. Second operand has 2 states, 2 states have (on average 529.0) internal successors, (1058), 2 states have internal predecessors, (1058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:50:37,404 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:50:37,405 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 528 of 1096 [2023-08-29 18:50:37,405 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:50:38,080 INFO L130 PetriNetUnfolder]: 1808/5291 cut-off events. [2023-08-29 18:50:38,080 INFO L131 PetriNetUnfolder]: For 205/205 co-relation queries the response was YES. [2023-08-29 18:50:38,092 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8024 conditions, 5291 events. 1808/5291 cut-off events. For 205/205 co-relation queries the response was YES. Maximal size of possible extension queue 216. Compared 49419 event pairs, 1485 based on Foata normal form. 149/4486 useless extension candidates. Maximal degree in co-relation 6878. Up to 2586 conditions per place. [2023-08-29 18:50:38,119 INFO L137 encePairwiseOnDemand]: 1069/1096 looper letters, 37 selfloop transitions, 0 changer transitions 1/112 dead transitions. [2023-08-29 18:50:38,119 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 112 transitions, 318 flow [2023-08-29 18:50:38,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-29 18:50:38,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-29 18:50:38,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 1121 transitions. [2023-08-29 18:50:38,138 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.511405109489051 [2023-08-29 18:50:38,140 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 1121 transitions. [2023-08-29 18:50:38,140 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 1121 transitions. [2023-08-29 18:50:38,143 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:50:38,146 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 1121 transitions. [2023-08-29 18:50:38,152 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 560.5) internal successors, (1121), 2 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:50:38,162 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 1096.0) internal successors, (3288), 3 states have internal predecessors, (3288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:50:38,164 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 1096.0) internal successors, (3288), 3 states have internal predecessors, (3288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:50:38,165 INFO L175 Difference]: Start difference. First operand has 143 places, 139 transitions, 296 flow. Second operand 2 states and 1121 transitions. [2023-08-29 18:50:38,166 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 112 transitions, 318 flow [2023-08-29 18:50:38,173 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 112 transitions, 306 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-08-29 18:50:38,175 INFO L231 Difference]: Finished difference. Result has 111 places, 111 transitions, 227 flow [2023-08-29 18:50:38,177 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1096, PETRI_DIFFERENCE_MINUEND_FLOW=230, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=227, PETRI_PLACES=111, PETRI_TRANSITIONS=111} [2023-08-29 18:50:38,181 INFO L281 CegarLoopForPetriNet]: 143 programPoint places, -32 predicate places. [2023-08-29 18:50:38,181 INFO L495 AbstractCegarLoop]: Abstraction has has 111 places, 111 transitions, 227 flow [2023-08-29 18:50:38,183 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 529.0) internal successors, (1058), 2 states have internal predecessors, (1058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:50:38,183 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:50:38,184 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:50:38,186 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-29 18:50:38,186 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 80 more)] === [2023-08-29 18:50:38,193 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:50:38,194 INFO L85 PathProgramCache]: Analyzing trace with hash -1211754961, now seen corresponding path program 1 times [2023-08-29 18:50:38,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:50:38,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301818910] [2023-08-29 18:50:38,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:50:38,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:50:38,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:50:38,331 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 18:50:38,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:50:38,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301818910] [2023-08-29 18:50:38,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1301818910] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:50:38,335 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:50:38,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 18:50:38,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846379075] [2023-08-29 18:50:38,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:50:38,337 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 18:50:38,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:50:38,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 18:50:38,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 18:50:38,351 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 521 out of 1096 [2023-08-29 18:50:38,353 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 111 transitions, 227 flow. Second operand has 3 states, 3 states have (on average 523.3333333333334) internal successors, (1570), 3 states have internal predecessors, (1570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:50:38,353 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:50:38,353 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 521 of 1096 [2023-08-29 18:50:38,354 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:50:38,928 INFO L130 PetriNetUnfolder]: 2310/5451 cut-off events. [2023-08-29 18:50:38,928 INFO L131 PetriNetUnfolder]: For 57/57 co-relation queries the response was YES. [2023-08-29 18:50:38,938 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8798 conditions, 5451 events. 2310/5451 cut-off events. For 57/57 co-relation queries the response was YES. Maximal size of possible extension queue 198. Compared 44777 event pairs, 607 based on Foata normal form. 0/4509 useless extension candidates. Maximal degree in co-relation 8795. Up to 3242 conditions per place. [2023-08-29 18:50:38,969 INFO L137 encePairwiseOnDemand]: 1092/1096 looper letters, 50 selfloop transitions, 2 changer transitions 0/122 dead transitions. [2023-08-29 18:50:38,970 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 122 transitions, 355 flow [2023-08-29 18:50:38,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 18:50:38,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 18:50:38,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1617 transitions. [2023-08-29 18:50:38,974 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49178832116788324 [2023-08-29 18:50:38,974 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1617 transitions. [2023-08-29 18:50:38,975 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1617 transitions. [2023-08-29 18:50:38,975 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:50:38,976 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1617 transitions. [2023-08-29 18:50:38,979 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 539.0) internal successors, (1617), 3 states have internal predecessors, (1617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:50:38,984 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1096.0) internal successors, (4384), 4 states have internal predecessors, (4384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:50:38,986 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1096.0) internal successors, (4384), 4 states have internal predecessors, (4384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:50:38,986 INFO L175 Difference]: Start difference. First operand has 111 places, 111 transitions, 227 flow. Second operand 3 states and 1617 transitions. [2023-08-29 18:50:38,987 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 122 transitions, 355 flow [2023-08-29 18:50:38,988 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 122 transitions, 355 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 18:50:38,990 INFO L231 Difference]: Finished difference. Result has 111 places, 111 transitions, 237 flow [2023-08-29 18:50:38,991 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1096, PETRI_DIFFERENCE_MINUEND_FLOW=223, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=237, PETRI_PLACES=111, PETRI_TRANSITIONS=111} [2023-08-29 18:50:38,992 INFO L281 CegarLoopForPetriNet]: 143 programPoint places, -32 predicate places. [2023-08-29 18:50:38,992 INFO L495 AbstractCegarLoop]: Abstraction has has 111 places, 111 transitions, 237 flow [2023-08-29 18:50:38,993 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 523.3333333333334) internal successors, (1570), 3 states have internal predecessors, (1570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:50:38,993 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:50:38,993 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:50:38,993 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-29 18:50:38,994 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 80 more)] === [2023-08-29 18:50:38,994 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:50:38,994 INFO L85 PathProgramCache]: Analyzing trace with hash -559794908, now seen corresponding path program 1 times [2023-08-29 18:50:38,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:50:38,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888564496] [2023-08-29 18:50:38,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:50:38,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:50:39,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:50:39,164 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 18:50:39,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:50:39,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888564496] [2023-08-29 18:50:39,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1888564496] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:50:39,165 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:50:39,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-29 18:50:39,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107745047] [2023-08-29 18:50:39,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:50:39,167 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 18:50:39,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:50:39,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 18:50:39,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 18:50:39,256 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 516 out of 1096 [2023-08-29 18:50:39,258 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 111 transitions, 237 flow. Second operand has 3 states, 3 states have (on average 518.3333333333334) internal successors, (1555), 3 states have internal predecessors, (1555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:50:39,258 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:50:39,258 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 516 of 1096 [2023-08-29 18:50:39,258 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:50:39,846 INFO L130 PetriNetUnfolder]: 1948/5770 cut-off events. [2023-08-29 18:50:39,847 INFO L131 PetriNetUnfolder]: For 56/56 co-relation queries the response was YES. [2023-08-29 18:50:39,859 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8642 conditions, 5770 events. 1948/5770 cut-off events. For 56/56 co-relation queries the response was YES. Maximal size of possible extension queue 240. Compared 54954 event pairs, 1597 based on Foata normal form. 0/4732 useless extension candidates. Maximal degree in co-relation 8638. Up to 2807 conditions per place. [2023-08-29 18:50:39,879 INFO L137 encePairwiseOnDemand]: 1089/1096 looper letters, 34 selfloop transitions, 6 changer transitions 0/114 dead transitions. [2023-08-29 18:50:39,880 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 114 transitions, 323 flow [2023-08-29 18:50:39,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 18:50:39,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 18:50:39,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1591 transitions. [2023-08-29 18:50:39,884 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4838807785888078 [2023-08-29 18:50:39,884 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1591 transitions. [2023-08-29 18:50:39,884 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1591 transitions. [2023-08-29 18:50:39,885 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:50:39,885 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1591 transitions. [2023-08-29 18:50:39,888 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 530.3333333333334) internal successors, (1591), 3 states have internal predecessors, (1591), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:50:39,894 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1096.0) internal successors, (4384), 4 states have internal predecessors, (4384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:50:39,896 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1096.0) internal successors, (4384), 4 states have internal predecessors, (4384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:50:39,896 INFO L175 Difference]: Start difference. First operand has 111 places, 111 transitions, 237 flow. Second operand 3 states and 1591 transitions. [2023-08-29 18:50:39,897 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 114 transitions, 323 flow [2023-08-29 18:50:39,898 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 114 transitions, 323 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 18:50:39,899 INFO L231 Difference]: Finished difference. Result has 114 places, 114 transitions, 269 flow [2023-08-29 18:50:39,900 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1096, PETRI_DIFFERENCE_MINUEND_FLOW=237, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=269, PETRI_PLACES=114, PETRI_TRANSITIONS=114} [2023-08-29 18:50:39,900 INFO L281 CegarLoopForPetriNet]: 143 programPoint places, -29 predicate places. [2023-08-29 18:50:39,900 INFO L495 AbstractCegarLoop]: Abstraction has has 114 places, 114 transitions, 269 flow [2023-08-29 18:50:39,902 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 518.3333333333334) internal successors, (1555), 3 states have internal predecessors, (1555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:50:39,902 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:50:39,902 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:50:39,902 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-29 18:50:39,902 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 80 more)] === [2023-08-29 18:50:39,903 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:50:39,903 INFO L85 PathProgramCache]: Analyzing trace with hash 914489014, now seen corresponding path program 1 times [2023-08-29 18:50:39,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:50:39,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550501268] [2023-08-29 18:50:39,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:50:39,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:50:39,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:50:39,943 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 18:50:39,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:50:39,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550501268] [2023-08-29 18:50:39,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1550501268] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:50:39,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:50:39,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 18:50:39,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159147940] [2023-08-29 18:50:39,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:50:39,945 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 18:50:39,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:50:39,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 18:50:39,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 18:50:39,955 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 521 out of 1096 [2023-08-29 18:50:39,957 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 114 transitions, 269 flow. Second operand has 3 states, 3 states have (on average 524.6666666666666) internal successors, (1574), 3 states have internal predecessors, (1574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:50:39,957 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:50:39,957 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 521 of 1096 [2023-08-29 18:50:39,958 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:50:40,575 INFO L130 PetriNetUnfolder]: 2266/6044 cut-off events. [2023-08-29 18:50:40,575 INFO L131 PetriNetUnfolder]: For 64/85 co-relation queries the response was YES. [2023-08-29 18:50:40,593 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9385 conditions, 6044 events. 2266/6044 cut-off events. For 64/85 co-relation queries the response was YES. Maximal size of possible extension queue 239. Compared 54370 event pairs, 1160 based on Foata normal form. 1/5010 useless extension candidates. Maximal degree in co-relation 9379. Up to 3156 conditions per place. [2023-08-29 18:50:40,655 INFO L137 encePairwiseOnDemand]: 1092/1096 looper letters, 55 selfloop transitions, 2 changer transitions 0/128 dead transitions. [2023-08-29 18:50:40,656 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 128 transitions, 413 flow [2023-08-29 18:50:40,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 18:50:40,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 18:50:40,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1619 transitions. [2023-08-29 18:50:40,660 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49239659367396593 [2023-08-29 18:50:40,660 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1619 transitions. [2023-08-29 18:50:40,660 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1619 transitions. [2023-08-29 18:50:40,661 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:50:40,661 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1619 transitions. [2023-08-29 18:50:40,664 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 539.6666666666666) internal successors, (1619), 3 states have internal predecessors, (1619), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:50:40,669 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1096.0) internal successors, (4384), 4 states have internal predecessors, (4384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:50:40,671 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1096.0) internal successors, (4384), 4 states have internal predecessors, (4384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:50:40,671 INFO L175 Difference]: Start difference. First operand has 114 places, 114 transitions, 269 flow. Second operand 3 states and 1619 transitions. [2023-08-29 18:50:40,671 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 128 transitions, 413 flow [2023-08-29 18:50:40,672 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 128 transitions, 407 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 18:50:40,674 INFO L231 Difference]: Finished difference. Result has 114 places, 114 transitions, 273 flow [2023-08-29 18:50:40,674 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1096, PETRI_DIFFERENCE_MINUEND_FLOW=259, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=273, PETRI_PLACES=114, PETRI_TRANSITIONS=114} [2023-08-29 18:50:40,675 INFO L281 CegarLoopForPetriNet]: 143 programPoint places, -29 predicate places. [2023-08-29 18:50:40,675 INFO L495 AbstractCegarLoop]: Abstraction has has 114 places, 114 transitions, 273 flow [2023-08-29 18:50:40,676 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 524.6666666666666) internal successors, (1574), 3 states have internal predecessors, (1574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:50:40,676 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:50:40,676 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:50:40,677 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-29 18:50:40,677 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 80 more)] === [2023-08-29 18:50:40,677 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:50:40,677 INFO L85 PathProgramCache]: Analyzing trace with hash -1643595887, now seen corresponding path program 1 times [2023-08-29 18:50:40,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:50:40,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986859386] [2023-08-29 18:50:40,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:50:40,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:50:40,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:50:40,715 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 18:50:40,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:50:40,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986859386] [2023-08-29 18:50:40,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1986859386] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:50:40,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:50:40,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 18:50:40,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237108183] [2023-08-29 18:50:40,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:50:40,716 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 18:50:40,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:50:40,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 18:50:40,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 18:50:40,728 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 521 out of 1096 [2023-08-29 18:50:40,730 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 114 transitions, 273 flow. Second operand has 3 states, 3 states have (on average 525.3333333333334) internal successors, (1576), 3 states have internal predecessors, (1576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:50:40,730 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:50:40,730 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 521 of 1096 [2023-08-29 18:50:40,730 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:50:41,587 INFO L130 PetriNetUnfolder]: 3260/9013 cut-off events. [2023-08-29 18:50:41,587 INFO L131 PetriNetUnfolder]: For 238/253 co-relation queries the response was YES. [2023-08-29 18:50:41,606 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13983 conditions, 9013 events. 3260/9013 cut-off events. For 238/253 co-relation queries the response was YES. Maximal size of possible extension queue 362. Compared 89325 event pairs, 889 based on Foata normal form. 2/7565 useless extension candidates. Maximal degree in co-relation 13977. Up to 3112 conditions per place. [2023-08-29 18:50:41,633 INFO L137 encePairwiseOnDemand]: 1092/1096 looper letters, 66 selfloop transitions, 2 changer transitions 0/138 dead transitions. [2023-08-29 18:50:41,634 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 138 transitions, 466 flow [2023-08-29 18:50:41,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 18:50:41,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 18:50:41,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1628 transitions. [2023-08-29 18:50:41,638 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4951338199513382 [2023-08-29 18:50:41,638 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1628 transitions. [2023-08-29 18:50:41,638 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1628 transitions. [2023-08-29 18:50:41,639 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:50:41,639 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1628 transitions. [2023-08-29 18:50:41,642 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 542.6666666666666) internal successors, (1628), 3 states have internal predecessors, (1628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:50:41,647 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1096.0) internal successors, (4384), 4 states have internal predecessors, (4384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:50:41,650 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1096.0) internal successors, (4384), 4 states have internal predecessors, (4384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:50:41,650 INFO L175 Difference]: Start difference. First operand has 114 places, 114 transitions, 273 flow. Second operand 3 states and 1628 transitions. [2023-08-29 18:50:41,650 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 138 transitions, 466 flow [2023-08-29 18:50:41,653 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 138 transitions, 466 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 18:50:41,655 INFO L231 Difference]: Finished difference. Result has 115 places, 114 transitions, 283 flow [2023-08-29 18:50:41,655 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1096, PETRI_DIFFERENCE_MINUEND_FLOW=269, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=283, PETRI_PLACES=115, PETRI_TRANSITIONS=114} [2023-08-29 18:50:41,657 INFO L281 CegarLoopForPetriNet]: 143 programPoint places, -28 predicate places. [2023-08-29 18:50:41,657 INFO L495 AbstractCegarLoop]: Abstraction has has 115 places, 114 transitions, 283 flow [2023-08-29 18:50:41,658 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 525.3333333333334) internal successors, (1576), 3 states have internal predecessors, (1576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:50:41,658 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:50:41,658 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:50:41,658 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-29 18:50:41,659 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 80 more)] === [2023-08-29 18:50:41,659 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:50:41,659 INFO L85 PathProgramCache]: Analyzing trace with hash -98641260, now seen corresponding path program 1 times [2023-08-29 18:50:41,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:50:41,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661015730] [2023-08-29 18:50:41,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:50:41,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:50:41,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:50:41,720 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 18:50:41,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:50:41,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661015730] [2023-08-29 18:50:41,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1661015730] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:50:41,721 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:50:41,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 18:50:41,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406401387] [2023-08-29 18:50:41,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:50:41,721 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 18:50:41,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:50:41,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 18:50:41,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 18:50:41,737 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 521 out of 1096 [2023-08-29 18:50:41,739 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 114 transitions, 283 flow. Second operand has 3 states, 3 states have (on average 525.3333333333334) internal successors, (1576), 3 states have internal predecessors, (1576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:50:41,739 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:50:41,739 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 521 of 1096 [2023-08-29 18:50:41,740 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:50:42,490 INFO L130 PetriNetUnfolder]: 2952/7248 cut-off events. [2023-08-29 18:50:42,490 INFO L131 PetriNetUnfolder]: For 431/478 co-relation queries the response was YES. [2023-08-29 18:50:42,514 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12369 conditions, 7248 events. 2952/7248 cut-off events. For 431/478 co-relation queries the response was YES. Maximal size of possible extension queue 241. Compared 62316 event pairs, 603 based on Foata normal form. 5/6329 useless extension candidates. Maximal degree in co-relation 12362. Up to 3808 conditions per place. [2023-08-29 18:50:42,543 INFO L137 encePairwiseOnDemand]: 1092/1096 looper letters, 58 selfloop transitions, 2 changer transitions 0/129 dead transitions. [2023-08-29 18:50:42,544 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 129 transitions, 445 flow [2023-08-29 18:50:42,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 18:50:42,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 18:50:42,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1617 transitions. [2023-08-29 18:50:42,548 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49178832116788324 [2023-08-29 18:50:42,549 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1617 transitions. [2023-08-29 18:50:42,549 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1617 transitions. [2023-08-29 18:50:42,550 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:50:42,550 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1617 transitions. [2023-08-29 18:50:42,553 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 539.0) internal successors, (1617), 3 states have internal predecessors, (1617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:50:42,557 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1096.0) internal successors, (4384), 4 states have internal predecessors, (4384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:50:42,559 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1096.0) internal successors, (4384), 4 states have internal predecessors, (4384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:50:42,559 INFO L175 Difference]: Start difference. First operand has 115 places, 114 transitions, 283 flow. Second operand 3 states and 1617 transitions. [2023-08-29 18:50:42,559 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 129 transitions, 445 flow [2023-08-29 18:50:42,560 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 129 transitions, 445 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 18:50:42,562 INFO L231 Difference]: Finished difference. Result has 116 places, 114 transitions, 293 flow [2023-08-29 18:50:42,562 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1096, PETRI_DIFFERENCE_MINUEND_FLOW=279, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=293, PETRI_PLACES=116, PETRI_TRANSITIONS=114} [2023-08-29 18:50:42,563 INFO L281 CegarLoopForPetriNet]: 143 programPoint places, -27 predicate places. [2023-08-29 18:50:42,563 INFO L495 AbstractCegarLoop]: Abstraction has has 116 places, 114 transitions, 293 flow [2023-08-29 18:50:42,564 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 525.3333333333334) internal successors, (1576), 3 states have internal predecessors, (1576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:50:42,564 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:50:42,564 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:50:42,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-29 18:50:42,564 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 80 more)] === [2023-08-29 18:50:42,565 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:50:42,565 INFO L85 PathProgramCache]: Analyzing trace with hash -304310130, now seen corresponding path program 1 times [2023-08-29 18:50:42,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:50:42,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208735209] [2023-08-29 18:50:42,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:50:42,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:50:42,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:50:42,605 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 18:50:42,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:50:42,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1208735209] [2023-08-29 18:50:42,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1208735209] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:50:42,606 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:50:42,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 18:50:42,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928665963] [2023-08-29 18:50:42,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:50:42,607 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 18:50:42,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:50:42,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 18:50:42,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 18:50:42,616 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 521 out of 1096 [2023-08-29 18:50:42,618 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 114 transitions, 293 flow. Second operand has 3 states, 3 states have (on average 526.0) internal successors, (1578), 3 states have internal predecessors, (1578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:50:42,618 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:50:42,618 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 521 of 1096 [2023-08-29 18:50:42,619 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:50:43,863 INFO L130 PetriNetUnfolder]: 5331/14282 cut-off events. [2023-08-29 18:50:43,863 INFO L131 PetriNetUnfolder]: For 1176/1191 co-relation queries the response was YES. [2023-08-29 18:50:43,899 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23941 conditions, 14282 events. 5331/14282 cut-off events. For 1176/1191 co-relation queries the response was YES. Maximal size of possible extension queue 476. Compared 146203 event pairs, 1526 based on Foata normal form. 0/12835 useless extension candidates. Maximal degree in co-relation 23933. Up to 4744 conditions per place. [2023-08-29 18:50:43,942 INFO L137 encePairwiseOnDemand]: 1092/1096 looper letters, 78 selfloop transitions, 2 changer transitions 0/144 dead transitions. [2023-08-29 18:50:43,943 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 144 transitions, 539 flow [2023-08-29 18:50:43,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 18:50:43,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 18:50:43,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1633 transitions. [2023-08-29 18:50:43,947 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49665450121654503 [2023-08-29 18:50:43,947 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1633 transitions. [2023-08-29 18:50:43,947 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1633 transitions. [2023-08-29 18:50:43,948 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:50:43,948 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1633 transitions. [2023-08-29 18:50:43,950 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 544.3333333333334) internal successors, (1633), 3 states have internal predecessors, (1633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:50:43,955 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1096.0) internal successors, (4384), 4 states have internal predecessors, (4384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:50:43,956 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1096.0) internal successors, (4384), 4 states have internal predecessors, (4384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:50:43,956 INFO L175 Difference]: Start difference. First operand has 116 places, 114 transitions, 293 flow. Second operand 3 states and 1633 transitions. [2023-08-29 18:50:43,956 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 144 transitions, 539 flow [2023-08-29 18:50:43,958 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 144 transitions, 539 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 18:50:43,959 INFO L231 Difference]: Finished difference. Result has 117 places, 114 transitions, 303 flow [2023-08-29 18:50:43,959 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1096, PETRI_DIFFERENCE_MINUEND_FLOW=289, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=303, PETRI_PLACES=117, PETRI_TRANSITIONS=114} [2023-08-29 18:50:43,960 INFO L281 CegarLoopForPetriNet]: 143 programPoint places, -26 predicate places. [2023-08-29 18:50:43,960 INFO L495 AbstractCegarLoop]: Abstraction has has 117 places, 114 transitions, 303 flow [2023-08-29 18:50:43,961 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 526.0) internal successors, (1578), 3 states have internal predecessors, (1578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:50:43,961 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:50:43,961 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:50:43,962 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-29 18:50:43,962 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 80 more)] === [2023-08-29 18:50:43,962 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:50:43,962 INFO L85 PathProgramCache]: Analyzing trace with hash -380490289, now seen corresponding path program 1 times [2023-08-29 18:50:43,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:50:43,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989859302] [2023-08-29 18:50:43,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:50:43,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:50:43,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:50:44,048 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-29 18:50:44,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:50:44,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989859302] [2023-08-29 18:50:44,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [989859302] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-29 18:50:44,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [457894839] [2023-08-29 18:50:44,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:50:44,049 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 18:50:44,049 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 18:50:44,053 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-29 18:50:44,073 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-08-29 18:50:44,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:50:44,198 INFO L263 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 5 conjunts are in the unsatisfiable core [2023-08-29 18:50:44,202 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 18:50:44,250 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-29 18:50:44,250 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-29 18:50:44,269 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-29 18:50:44,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [457894839] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-29 18:50:44,270 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-29 18:50:44,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 3] total 8 [2023-08-29 18:50:44,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995607946] [2023-08-29 18:50:44,271 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-29 18:50:44,271 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-29 18:50:44,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:50:44,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-29 18:50:44,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2023-08-29 18:50:44,544 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 510 out of 1096 [2023-08-29 18:50:44,547 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 114 transitions, 303 flow. Second operand has 8 states, 8 states have (on average 512.875) internal successors, (4103), 8 states have internal predecessors, (4103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:50:44,547 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:50:44,547 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 510 of 1096 [2023-08-29 18:50:44,547 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:50:45,508 INFO L130 PetriNetUnfolder]: 4260/11614 cut-off events. [2023-08-29 18:50:45,508 INFO L131 PetriNetUnfolder]: For 1297/1416 co-relation queries the response was YES. [2023-08-29 18:50:45,536 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20163 conditions, 11614 events. 4260/11614 cut-off events. For 1297/1416 co-relation queries the response was YES. Maximal size of possible extension queue 353. Compared 112584 event pairs, 3018 based on Foata normal form. 0/10570 useless extension candidates. Maximal degree in co-relation 20154. Up to 6095 conditions per place. [2023-08-29 18:50:45,571 INFO L137 encePairwiseOnDemand]: 1089/1096 looper letters, 40 selfloop transitions, 15 changer transitions 0/123 dead transitions. [2023-08-29 18:50:45,571 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 123 transitions, 449 flow [2023-08-29 18:50:45,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 18:50:45,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 18:50:45,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3118 transitions. [2023-08-29 18:50:45,579 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4741484184914842 [2023-08-29 18:50:45,579 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3118 transitions. [2023-08-29 18:50:45,579 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3118 transitions. [2023-08-29 18:50:45,580 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:50:45,580 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3118 transitions. [2023-08-29 18:50:45,585 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 519.6666666666666) internal successors, (3118), 6 states have internal predecessors, (3118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:50:45,592 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1096.0) internal successors, (7672), 7 states have internal predecessors, (7672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:50:45,593 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1096.0) internal successors, (7672), 7 states have internal predecessors, (7672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:50:45,593 INFO L175 Difference]: Start difference. First operand has 117 places, 114 transitions, 303 flow. Second operand 6 states and 3118 transitions. [2023-08-29 18:50:45,593 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 123 transitions, 449 flow [2023-08-29 18:50:45,595 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 123 transitions, 449 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 18:50:45,597 INFO L231 Difference]: Finished difference. Result has 125 places, 123 transitions, 399 flow [2023-08-29 18:50:45,597 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1096, PETRI_DIFFERENCE_MINUEND_FLOW=303, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=399, PETRI_PLACES=125, PETRI_TRANSITIONS=123} [2023-08-29 18:50:45,597 INFO L281 CegarLoopForPetriNet]: 143 programPoint places, -18 predicate places. [2023-08-29 18:50:45,598 INFO L495 AbstractCegarLoop]: Abstraction has has 125 places, 123 transitions, 399 flow [2023-08-29 18:50:45,599 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 512.875) internal successors, (4103), 8 states have internal predecessors, (4103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:50:45,599 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:50:45,599 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:50:45,607 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-08-29 18:50:45,803 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 18:50:45,804 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 80 more)] === [2023-08-29 18:50:45,805 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:50:45,805 INFO L85 PathProgramCache]: Analyzing trace with hash -1146691807, now seen corresponding path program 2 times [2023-08-29 18:50:45,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:50:45,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291980569] [2023-08-29 18:50:45,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:50:45,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:50:45,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:50:46,000 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-08-29 18:50:46,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:50:46,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291980569] [2023-08-29 18:50:46,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [291980569] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-29 18:50:46,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1593484564] [2023-08-29 18:50:46,001 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-29 18:50:46,001 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 18:50:46,002 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 18:50:46,003 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-29 18:50:46,011 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-08-29 18:50:46,144 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-08-29 18:50:46,145 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-29 18:50:46,147 INFO L263 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 19 conjunts are in the unsatisfiable core [2023-08-29 18:50:46,149 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 18:50:46,207 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-08-29 18:50:46,227 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2023-08-29 18:50:46,253 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-29 18:50:46,254 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2023-08-29 18:50:46,283 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-29 18:50:46,283 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 38 [2023-08-29 18:50:46,306 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-29 18:50:46,307 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-29 18:50:46,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1593484564] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:50:46,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-29 18:50:46,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 12 [2023-08-29 18:50:46,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903803164] [2023-08-29 18:50:46,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:50:46,308 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-29 18:50:46,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:50:46,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-29 18:50:46,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2023-08-29 18:50:46,763 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 507 out of 1096 [2023-08-29 18:50:46,765 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 123 transitions, 399 flow. Second operand has 7 states, 7 states have (on average 509.42857142857144) internal successors, (3566), 7 states have internal predecessors, (3566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:50:46,765 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:50:46,766 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 507 of 1096 [2023-08-29 18:50:46,766 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:50:48,791 INFO L130 PetriNetUnfolder]: 12658/20964 cut-off events. [2023-08-29 18:50:48,792 INFO L131 PetriNetUnfolder]: For 4074/4188 co-relation queries the response was YES. [2023-08-29 18:50:48,848 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44380 conditions, 20964 events. 12658/20964 cut-off events. For 4074/4188 co-relation queries the response was YES. Maximal size of possible extension queue 880. Compared 155980 event pairs, 1062 based on Foata normal form. 0/19599 useless extension candidates. Maximal degree in co-relation 44367. Up to 6486 conditions per place. [2023-08-29 18:50:48,904 INFO L137 encePairwiseOnDemand]: 1090/1096 looper letters, 158 selfloop transitions, 5 changer transitions 0/226 dead transitions. [2023-08-29 18:50:48,904 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 226 transitions, 1051 flow [2023-08-29 18:50:48,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-29 18:50:48,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-29 18:50:48,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 3671 transitions. [2023-08-29 18:50:48,913 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4784932221063608 [2023-08-29 18:50:48,913 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 3671 transitions. [2023-08-29 18:50:48,913 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 3671 transitions. [2023-08-29 18:50:48,915 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:50:48,915 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 3671 transitions. [2023-08-29 18:50:48,921 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 524.4285714285714) internal successors, (3671), 7 states have internal predecessors, (3671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:50:48,933 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 1096.0) internal successors, (8768), 8 states have internal predecessors, (8768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:50:48,935 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 1096.0) internal successors, (8768), 8 states have internal predecessors, (8768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:50:48,935 INFO L175 Difference]: Start difference. First operand has 125 places, 123 transitions, 399 flow. Second operand 7 states and 3671 transitions. [2023-08-29 18:50:48,935 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 226 transitions, 1051 flow [2023-08-29 18:50:48,938 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 226 transitions, 1027 flow, removed 9 selfloop flow, removed 1 redundant places. [2023-08-29 18:50:48,940 INFO L231 Difference]: Finished difference. Result has 129 places, 122 transitions, 383 flow [2023-08-29 18:50:48,940 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1096, PETRI_DIFFERENCE_MINUEND_FLOW=373, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=383, PETRI_PLACES=129, PETRI_TRANSITIONS=122} [2023-08-29 18:50:48,941 INFO L281 CegarLoopForPetriNet]: 143 programPoint places, -14 predicate places. [2023-08-29 18:50:48,941 INFO L495 AbstractCegarLoop]: Abstraction has has 129 places, 122 transitions, 383 flow [2023-08-29 18:50:48,942 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 509.42857142857144) internal successors, (3566), 7 states have internal predecessors, (3566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:50:48,942 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:50:48,942 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:50:48,947 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-08-29 18:50:49,147 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2023-08-29 18:50:49,147 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 80 more)] === [2023-08-29 18:50:49,147 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:50:49,148 INFO L85 PathProgramCache]: Analyzing trace with hash -37000984, now seen corresponding path program 1 times [2023-08-29 18:50:49,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:50:49,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093593714] [2023-08-29 18:50:49,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:50:49,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:50:49,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:50:49,372 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-08-29 18:50:49,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:50:49,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093593714] [2023-08-29 18:50:49,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1093593714] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-29 18:50:49,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1636837542] [2023-08-29 18:50:49,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:50:49,373 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 18:50:49,373 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 18:50:49,374 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-29 18:50:49,398 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-08-29 18:50:49,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:50:49,548 INFO L263 TraceCheckSpWp]: Trace formula consists of 454 conjuncts, 8 conjunts are in the unsatisfiable core [2023-08-29 18:50:49,550 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-29 18:50:49,624 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-08-29 18:50:49,624 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-08-29 18:50:49,698 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-08-29 18:50:49,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1636837542] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-29 18:50:49,699 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-29 18:50:49,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 17 [2023-08-29 18:50:49,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214082399] [2023-08-29 18:50:49,699 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-29 18:50:49,699 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-08-29 18:50:49,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:50:49,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-08-29 18:50:49,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=166, Unknown=0, NotChecked=0, Total=272 [2023-08-29 18:50:50,290 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 510 out of 1096 [2023-08-29 18:50:50,296 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 122 transitions, 383 flow. Second operand has 17 states, 17 states have (on average 511.70588235294116) internal successors, (8699), 17 states have internal predecessors, (8699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:50:50,297 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:50:50,297 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 510 of 1096 [2023-08-29 18:50:50,297 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:50:51,205 INFO L130 PetriNetUnfolder]: 4260/11583 cut-off events. [2023-08-29 18:50:51,205 INFO L131 PetriNetUnfolder]: For 1989/2108 co-relation queries the response was YES. [2023-08-29 18:50:51,249 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20961 conditions, 11583 events. 4260/11583 cut-off events. For 1989/2108 co-relation queries the response was YES. Maximal size of possible extension queue 353. Compared 112064 event pairs, 3018 based on Foata normal form. 1/10569 useless extension candidates. Maximal degree in co-relation 20947. Up to 6095 conditions per place. [2023-08-29 18:50:51,282 INFO L137 encePairwiseOnDemand]: 1089/1096 looper letters, 40 selfloop transitions, 18 changer transitions 0/125 dead transitions. [2023-08-29 18:50:51,282 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 125 transitions, 517 flow [2023-08-29 18:50:51,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-29 18:50:51,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-29 18:50:51,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 3625 transitions. [2023-08-29 18:50:51,291 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47249739311783107 [2023-08-29 18:50:51,291 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 3625 transitions. [2023-08-29 18:50:51,291 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 3625 transitions. [2023-08-29 18:50:51,293 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:50:51,293 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 3625 transitions. [2023-08-29 18:50:51,298 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 517.8571428571429) internal successors, (3625), 7 states have internal predecessors, (3625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:50:51,308 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 1096.0) internal successors, (8768), 8 states have internal predecessors, (8768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:50:51,310 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 1096.0) internal successors, (8768), 8 states have internal predecessors, (8768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:50:51,310 INFO L175 Difference]: Start difference. First operand has 129 places, 122 transitions, 383 flow. Second operand 7 states and 3625 transitions. [2023-08-29 18:50:51,310 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 125 transitions, 517 flow [2023-08-29 18:50:51,316 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 125 transitions, 508 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-29 18:50:51,317 INFO L231 Difference]: Finished difference. Result has 131 places, 125 transitions, 442 flow [2023-08-29 18:50:51,318 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1096, PETRI_DIFFERENCE_MINUEND_FLOW=374, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=442, PETRI_PLACES=131, PETRI_TRANSITIONS=125} [2023-08-29 18:50:51,318 INFO L281 CegarLoopForPetriNet]: 143 programPoint places, -12 predicate places. [2023-08-29 18:50:51,318 INFO L495 AbstractCegarLoop]: Abstraction has has 131 places, 125 transitions, 442 flow [2023-08-29 18:50:51,321 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 511.70588235294116) internal successors, (8699), 17 states have internal predecessors, (8699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:50:51,321 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:50:51,321 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:50:51,331 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-08-29 18:50:51,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-29 18:50:51,532 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 80 more)] === [2023-08-29 18:50:51,532 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:50:51,532 INFO L85 PathProgramCache]: Analyzing trace with hash 73336442, now seen corresponding path program 2 times [2023-08-29 18:50:51,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:50:51,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646785836] [2023-08-29 18:50:51,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:50:51,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:50:51,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:50:52,266 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-08-29 18:50:52,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:50:52,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646785836] [2023-08-29 18:50:52,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [646785836] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:50:52,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:50:52,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 18:50:52,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281668912] [2023-08-29 18:50:52,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:50:52,268 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 18:50:52,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:50:52,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 18:50:52,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 18:50:52,694 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 506 out of 1096 [2023-08-29 18:50:52,696 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 125 transitions, 442 flow. Second operand has 6 states, 6 states have (on average 508.8333333333333) internal successors, (3053), 6 states have internal predecessors, (3053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:50:52,696 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:50:52,697 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 506 of 1096 [2023-08-29 18:50:52,697 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:50:53,895 INFO L130 PetriNetUnfolder]: 7072/14855 cut-off events. [2023-08-29 18:50:53,896 INFO L131 PetriNetUnfolder]: For 1902/1917 co-relation queries the response was YES. [2023-08-29 18:50:53,952 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28467 conditions, 14855 events. 7072/14855 cut-off events. For 1902/1917 co-relation queries the response was YES. Maximal size of possible extension queue 455. Compared 129910 event pairs, 3002 based on Foata normal form. 0/14022 useless extension candidates. Maximal degree in co-relation 28452. Up to 5938 conditions per place. [2023-08-29 18:50:53,995 INFO L137 encePairwiseOnDemand]: 1090/1096 looper letters, 146 selfloop transitions, 5 changer transitions 0/212 dead transitions. [2023-08-29 18:50:53,995 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 212 transitions, 994 flow [2023-08-29 18:50:53,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 18:50:53,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 18:50:54,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3155 transitions. [2023-08-29 18:50:54,003 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4797749391727494 [2023-08-29 18:50:54,003 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3155 transitions. [2023-08-29 18:50:54,003 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3155 transitions. [2023-08-29 18:50:54,005 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:50:54,005 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3155 transitions. [2023-08-29 18:50:54,010 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 525.8333333333334) internal successors, (3155), 6 states have internal predecessors, (3155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:50:54,016 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1096.0) internal successors, (7672), 7 states have internal predecessors, (7672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:50:54,018 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1096.0) internal successors, (7672), 7 states have internal predecessors, (7672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:50:54,018 INFO L175 Difference]: Start difference. First operand has 131 places, 125 transitions, 442 flow. Second operand 6 states and 3155 transitions. [2023-08-29 18:50:54,018 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 212 transitions, 994 flow [2023-08-29 18:50:54,022 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 212 transitions, 958 flow, removed 6 selfloop flow, removed 4 redundant places. [2023-08-29 18:50:54,024 INFO L231 Difference]: Finished difference. Result has 131 places, 124 transitions, 414 flow [2023-08-29 18:50:54,024 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1096, PETRI_DIFFERENCE_MINUEND_FLOW=404, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=414, PETRI_PLACES=131, PETRI_TRANSITIONS=124} [2023-08-29 18:50:54,024 INFO L281 CegarLoopForPetriNet]: 143 programPoint places, -12 predicate places. [2023-08-29 18:50:54,025 INFO L495 AbstractCegarLoop]: Abstraction has has 131 places, 124 transitions, 414 flow [2023-08-29 18:50:54,025 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 508.8333333333333) internal successors, (3053), 6 states have internal predecessors, (3053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:50:54,026 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:50:54,026 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:50:54,026 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-29 18:50:54,026 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 80 more)] === [2023-08-29 18:50:54,026 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:50:54,026 INFO L85 PathProgramCache]: Analyzing trace with hash -1602326185, now seen corresponding path program 1 times [2023-08-29 18:50:54,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:50:54,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507928346] [2023-08-29 18:50:54,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:50:54,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:50:54,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:50:54,601 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-08-29 18:50:54,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:50:54,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507928346] [2023-08-29 18:50:54,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1507928346] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:50:54,602 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:50:54,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 18:50:54,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737703609] [2023-08-29 18:50:54,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:50:54,602 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 18:50:54,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:50:54,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 18:50:54,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 18:50:55,043 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 506 out of 1096 [2023-08-29 18:50:55,045 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 124 transitions, 414 flow. Second operand has 6 states, 6 states have (on average 509.1666666666667) internal successors, (3055), 6 states have internal predecessors, (3055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:50:55,045 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:50:55,045 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 506 of 1096 [2023-08-29 18:50:55,046 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:50:56,254 INFO L130 PetriNetUnfolder]: 6575/15944 cut-off events. [2023-08-29 18:50:56,254 INFO L131 PetriNetUnfolder]: For 2286/2405 co-relation queries the response was YES. [2023-08-29 18:50:56,317 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29462 conditions, 15944 events. 6575/15944 cut-off events. For 2286/2405 co-relation queries the response was YES. Maximal size of possible extension queue 519. Compared 153338 event pairs, 3018 based on Foata normal form. 0/14928 useless extension candidates. Maximal degree in co-relation 29446. Up to 6110 conditions per place. [2023-08-29 18:50:56,361 INFO L137 encePairwiseOnDemand]: 1090/1096 looper letters, 142 selfloop transitions, 5 changer transitions 0/207 dead transitions. [2023-08-29 18:50:56,361 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 207 transitions, 946 flow [2023-08-29 18:50:56,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 18:50:56,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 18:50:56,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3155 transitions. [2023-08-29 18:50:56,368 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4797749391727494 [2023-08-29 18:50:56,368 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3155 transitions. [2023-08-29 18:50:56,368 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3155 transitions. [2023-08-29 18:50:56,369 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:50:56,369 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3155 transitions. [2023-08-29 18:50:56,374 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 525.8333333333334) internal successors, (3155), 6 states have internal predecessors, (3155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:50:56,379 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1096.0) internal successors, (7672), 7 states have internal predecessors, (7672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:50:56,379 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1096.0) internal successors, (7672), 7 states have internal predecessors, (7672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:50:56,380 INFO L175 Difference]: Start difference. First operand has 131 places, 124 transitions, 414 flow. Second operand 6 states and 3155 transitions. [2023-08-29 18:50:56,380 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 207 transitions, 946 flow [2023-08-29 18:50:56,385 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 207 transitions, 928 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-29 18:50:56,387 INFO L231 Difference]: Finished difference. Result has 130 places, 123 transitions, 412 flow [2023-08-29 18:50:56,388 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1096, PETRI_DIFFERENCE_MINUEND_FLOW=402, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=412, PETRI_PLACES=130, PETRI_TRANSITIONS=123} [2023-08-29 18:50:56,388 INFO L281 CegarLoopForPetriNet]: 143 programPoint places, -13 predicate places. [2023-08-29 18:50:56,388 INFO L495 AbstractCegarLoop]: Abstraction has has 130 places, 123 transitions, 412 flow [2023-08-29 18:50:56,389 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 509.1666666666667) internal successors, (3055), 6 states have internal predecessors, (3055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:50:56,389 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:50:56,389 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:50:56,389 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-29 18:50:56,390 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread3Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 80 more)] === [2023-08-29 18:50:56,390 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:50:56,390 INFO L85 PathProgramCache]: Analyzing trace with hash -607691912, now seen corresponding path program 1 times [2023-08-29 18:50:56,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:50:56,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248435978] [2023-08-29 18:50:56,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:50:56,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:50:56,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:50:56,878 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-08-29 18:50:56,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:50:56,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248435978] [2023-08-29 18:50:56,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [248435978] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:50:56,879 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:50:56,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 18:50:56,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101686097] [2023-08-29 18:50:56,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:50:56,881 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 18:50:56,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:50:56,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 18:50:56,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 18:50:57,321 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 506 out of 1096 [2023-08-29 18:50:57,322 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 123 transitions, 412 flow. Second operand has 6 states, 6 states have (on average 509.6666666666667) internal successors, (3058), 6 states have internal predecessors, (3058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:50:57,322 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:50:57,322 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 506 of 1096 [2023-08-29 18:50:57,322 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:50:58,505 INFO L130 PetriNetUnfolder]: 6375/13530 cut-off events. [2023-08-29 18:50:58,505 INFO L131 PetriNetUnfolder]: For 2199/2345 co-relation queries the response was YES. [2023-08-29 18:50:58,570 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26241 conditions, 13530 events. 6375/13530 cut-off events. For 2199/2345 co-relation queries the response was YES. Maximal size of possible extension queue 464. Compared 115462 event pairs, 2725 based on Foata normal form. 1/12774 useless extension candidates. Maximal degree in co-relation 26225. Up to 5527 conditions per place. [2023-08-29 18:50:58,619 INFO L137 encePairwiseOnDemand]: 1090/1096 looper letters, 134 selfloop transitions, 5 changer transitions 0/198 dead transitions. [2023-08-29 18:50:58,619 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 198 transitions, 912 flow [2023-08-29 18:50:58,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 18:50:58,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 18:50:58,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3147 transitions. [2023-08-29 18:50:58,627 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47855839416058393 [2023-08-29 18:50:58,627 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3147 transitions. [2023-08-29 18:50:58,627 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3147 transitions. [2023-08-29 18:50:58,629 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:50:58,629 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3147 transitions. [2023-08-29 18:50:58,636 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 524.5) internal successors, (3147), 6 states have internal predecessors, (3147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:50:58,641 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1096.0) internal successors, (7672), 7 states have internal predecessors, (7672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:50:58,642 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1096.0) internal successors, (7672), 7 states have internal predecessors, (7672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:50:58,642 INFO L175 Difference]: Start difference. First operand has 130 places, 123 transitions, 412 flow. Second operand 6 states and 3147 transitions. [2023-08-29 18:50:58,642 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 198 transitions, 912 flow [2023-08-29 18:50:58,646 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 198 transitions, 894 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-29 18:50:58,647 INFO L231 Difference]: Finished difference. Result has 129 places, 122 transitions, 410 flow [2023-08-29 18:50:58,648 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1096, PETRI_DIFFERENCE_MINUEND_FLOW=400, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=410, PETRI_PLACES=129, PETRI_TRANSITIONS=122} [2023-08-29 18:50:58,649 INFO L281 CegarLoopForPetriNet]: 143 programPoint places, -14 predicate places. [2023-08-29 18:50:58,649 INFO L495 AbstractCegarLoop]: Abstraction has has 129 places, 122 transitions, 410 flow [2023-08-29 18:50:58,650 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 509.6666666666667) internal successors, (3058), 6 states have internal predecessors, (3058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:50:58,650 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:50:58,650 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:50:58,650 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-29 18:50:58,651 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread2Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 80 more)] === [2023-08-29 18:50:58,651 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:50:58,651 INFO L85 PathProgramCache]: Analyzing trace with hash 2057841114, now seen corresponding path program 1 times [2023-08-29 18:50:58,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:50:58,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772046642] [2023-08-29 18:50:58,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:50:58,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:50:58,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:50:58,746 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-08-29 18:50:58,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:50:58,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772046642] [2023-08-29 18:50:58,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [772046642] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:50:58,747 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:50:58,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 18:50:58,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447728602] [2023-08-29 18:50:58,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:50:58,748 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 18:50:58,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:50:58,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 18:50:58,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 18:50:58,756 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 521 out of 1096 [2023-08-29 18:50:58,757 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 122 transitions, 410 flow. Second operand has 3 states, 3 states have (on average 526.3333333333334) internal successors, (1579), 3 states have internal predecessors, (1579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:50:58,758 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:50:58,758 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 521 of 1096 [2023-08-29 18:50:58,758 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:51:00,148 INFO L130 PetriNetUnfolder]: 7754/17803 cut-off events. [2023-08-29 18:51:00,148 INFO L131 PetriNetUnfolder]: For 2330/2449 co-relation queries the response was YES. [2023-08-29 18:51:00,190 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33831 conditions, 17803 events. 7754/17803 cut-off events. For 2330/2449 co-relation queries the response was YES. Maximal size of possible extension queue 643. Compared 169909 event pairs, 2211 based on Foata normal form. 0/17214 useless extension candidates. Maximal degree in co-relation 33815. Up to 7221 conditions per place. [2023-08-29 18:51:00,232 INFO L137 encePairwiseOnDemand]: 1092/1096 looper letters, 90 selfloop transitions, 2 changer transitions 0/150 dead transitions. [2023-08-29 18:51:00,232 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 150 transitions, 677 flow [2023-08-29 18:51:00,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 18:51:00,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 18:51:00,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1632 transitions. [2023-08-29 18:51:00,235 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49635036496350365 [2023-08-29 18:51:00,235 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1632 transitions. [2023-08-29 18:51:00,235 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1632 transitions. [2023-08-29 18:51:00,236 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:51:00,236 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1632 transitions. [2023-08-29 18:51:00,238 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 544.0) internal successors, (1632), 3 states have internal predecessors, (1632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:51:00,241 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1096.0) internal successors, (4384), 4 states have internal predecessors, (4384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:51:00,241 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1096.0) internal successors, (4384), 4 states have internal predecessors, (4384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:51:00,241 INFO L175 Difference]: Start difference. First operand has 129 places, 122 transitions, 410 flow. Second operand 3 states and 1632 transitions. [2023-08-29 18:51:00,242 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 150 transitions, 677 flow [2023-08-29 18:51:00,251 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 150 transitions, 667 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-29 18:51:00,253 INFO L231 Difference]: Finished difference. Result has 125 places, 122 transitions, 410 flow [2023-08-29 18:51:00,253 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1096, PETRI_DIFFERENCE_MINUEND_FLOW=396, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=410, PETRI_PLACES=125, PETRI_TRANSITIONS=122} [2023-08-29 18:51:00,254 INFO L281 CegarLoopForPetriNet]: 143 programPoint places, -18 predicate places. [2023-08-29 18:51:00,254 INFO L495 AbstractCegarLoop]: Abstraction has has 125 places, 122 transitions, 410 flow [2023-08-29 18:51:00,254 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 526.3333333333334) internal successors, (1579), 3 states have internal predecessors, (1579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:51:00,255 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:51:00,255 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:51:00,255 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-29 18:51:00,255 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 80 more)] === [2023-08-29 18:51:00,255 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:51:00,255 INFO L85 PathProgramCache]: Analyzing trace with hash 1167567858, now seen corresponding path program 1 times [2023-08-29 18:51:00,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:51:00,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344058453] [2023-08-29 18:51:00,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:51:00,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:51:00,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:51:00,794 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-08-29 18:51:00,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:51:00,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344058453] [2023-08-29 18:51:00,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1344058453] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:51:00,795 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:51:00,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 18:51:00,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079941329] [2023-08-29 18:51:00,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:51:00,796 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 18:51:00,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:51:00,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 18:51:00,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 18:51:01,190 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 507 out of 1096 [2023-08-29 18:51:01,192 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 122 transitions, 410 flow. Second operand has 6 states, 6 states have (on average 510.8333333333333) internal successors, (3065), 6 states have internal predecessors, (3065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:51:01,192 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:51:01,192 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 507 of 1096 [2023-08-29 18:51:01,192 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:51:02,746 INFO L130 PetriNetUnfolder]: 7351/17407 cut-off events. [2023-08-29 18:51:02,747 INFO L131 PetriNetUnfolder]: For 2138/2257 co-relation queries the response was YES. [2023-08-29 18:51:02,791 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32258 conditions, 17407 events. 7351/17407 cut-off events. For 2138/2257 co-relation queries the response was YES. Maximal size of possible extension queue 541. Compared 166068 event pairs, 3880 based on Foata normal form. 0/17013 useless extension candidates. Maximal degree in co-relation 32242. Up to 7640 conditions per place. [2023-08-29 18:51:02,833 INFO L137 encePairwiseOnDemand]: 1091/1096 looper letters, 130 selfloop transitions, 4 changer transitions 0/193 dead transitions. [2023-08-29 18:51:02,833 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 193 transitions, 900 flow [2023-08-29 18:51:02,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 18:51:02,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 18:51:02,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3140 transitions. [2023-08-29 18:51:02,838 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4774939172749392 [2023-08-29 18:51:02,838 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3140 transitions. [2023-08-29 18:51:02,838 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3140 transitions. [2023-08-29 18:51:02,839 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:51:02,839 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3140 transitions. [2023-08-29 18:51:02,843 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 523.3333333333334) internal successors, (3140), 6 states have internal predecessors, (3140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:51:02,848 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1096.0) internal successors, (7672), 7 states have internal predecessors, (7672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:51:02,849 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1096.0) internal successors, (7672), 7 states have internal predecessors, (7672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:51:02,849 INFO L175 Difference]: Start difference. First operand has 125 places, 122 transitions, 410 flow. Second operand 6 states and 3140 transitions. [2023-08-29 18:51:02,849 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 193 transitions, 900 flow [2023-08-29 18:51:02,852 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 193 transitions, 900 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 18:51:02,854 INFO L231 Difference]: Finished difference. Result has 129 places, 121 transitions, 416 flow [2023-08-29 18:51:02,854 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1096, PETRI_DIFFERENCE_MINUEND_FLOW=408, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=416, PETRI_PLACES=129, PETRI_TRANSITIONS=121} [2023-08-29 18:51:02,855 INFO L281 CegarLoopForPetriNet]: 143 programPoint places, -14 predicate places. [2023-08-29 18:51:02,855 INFO L495 AbstractCegarLoop]: Abstraction has has 129 places, 121 transitions, 416 flow [2023-08-29 18:51:02,855 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 510.8333333333333) internal successors, (3065), 6 states have internal predecessors, (3065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:51:02,855 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:51:02,856 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:51:02,856 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-08-29 18:51:02,856 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting thread1Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 80 more)] === [2023-08-29 18:51:02,856 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:51:02,856 INFO L85 PathProgramCache]: Analyzing trace with hash 1810021793, now seen corresponding path program 1 times [2023-08-29 18:51:02,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:51:02,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139910109] [2023-08-29 18:51:02,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:51:02,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:51:02,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:51:03,366 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-08-29 18:51:03,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:51:03,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139910109] [2023-08-29 18:51:03,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1139910109] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:51:03,367 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:51:03,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 18:51:03,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947305796] [2023-08-29 18:51:03,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:51:03,368 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 18:51:03,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:51:03,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 18:51:03,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 18:51:03,775 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 506 out of 1096 [2023-08-29 18:51:03,777 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 121 transitions, 416 flow. Second operand has 6 states, 6 states have (on average 508.8333333333333) internal successors, (3053), 6 states have internal predecessors, (3053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:51:03,777 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:51:03,777 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 506 of 1096 [2023-08-29 18:51:03,777 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:51:05,523 INFO L130 PetriNetUnfolder]: 7921/18125 cut-off events. [2023-08-29 18:51:05,523 INFO L131 PetriNetUnfolder]: For 2343/2462 co-relation queries the response was YES. [2023-08-29 18:51:05,617 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34381 conditions, 18125 events. 7921/18125 cut-off events. For 2343/2462 co-relation queries the response was YES. Maximal size of possible extension queue 628. Compared 171572 event pairs, 4218 based on Foata normal form. 0/17743 useless extension candidates. Maximal degree in co-relation 34364. Up to 8122 conditions per place. [2023-08-29 18:51:05,673 INFO L137 encePairwiseOnDemand]: 1090/1096 looper letters, 141 selfloop transitions, 5 changer transitions 0/204 dead transitions. [2023-08-29 18:51:05,674 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 204 transitions, 938 flow [2023-08-29 18:51:05,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 18:51:05,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 18:51:05,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3154 transitions. [2023-08-29 18:51:05,678 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4796228710462287 [2023-08-29 18:51:05,678 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3154 transitions. [2023-08-29 18:51:05,678 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3154 transitions. [2023-08-29 18:51:05,679 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:51:05,679 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3154 transitions. [2023-08-29 18:51:05,681 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 525.6666666666666) internal successors, (3154), 6 states have internal predecessors, (3154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:51:05,685 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1096.0) internal successors, (7672), 7 states have internal predecessors, (7672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:51:05,686 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1096.0) internal successors, (7672), 7 states have internal predecessors, (7672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:51:05,686 INFO L175 Difference]: Start difference. First operand has 129 places, 121 transitions, 416 flow. Second operand 6 states and 3154 transitions. [2023-08-29 18:51:05,686 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 204 transitions, 938 flow [2023-08-29 18:51:05,694 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 204 transitions, 931 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-29 18:51:05,696 INFO L231 Difference]: Finished difference. Result has 129 places, 120 transitions, 417 flow [2023-08-29 18:51:05,696 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1096, PETRI_DIFFERENCE_MINUEND_FLOW=407, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=417, PETRI_PLACES=129, PETRI_TRANSITIONS=120} [2023-08-29 18:51:05,697 INFO L281 CegarLoopForPetriNet]: 143 programPoint places, -14 predicate places. [2023-08-29 18:51:05,697 INFO L495 AbstractCegarLoop]: Abstraction has has 129 places, 120 transitions, 417 flow [2023-08-29 18:51:05,698 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 508.8333333333333) internal successors, (3053), 6 states have internal predecessors, (3053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:51:05,698 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:51:05,698 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:51:05,698 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-08-29 18:51:05,699 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting thread3Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 80 more)] === [2023-08-29 18:51:05,699 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:51:05,699 INFO L85 PathProgramCache]: Analyzing trace with hash 911898707, now seen corresponding path program 1 times [2023-08-29 18:51:05,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:51:05,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095269154] [2023-08-29 18:51:05,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:51:05,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:51:05,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:51:06,213 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-08-29 18:51:06,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:51:06,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095269154] [2023-08-29 18:51:06,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095269154] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:51:06,214 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:51:06,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 18:51:06,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064844337] [2023-08-29 18:51:06,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:51:06,215 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 18:51:06,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:51:06,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 18:51:06,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 18:51:06,641 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 506 out of 1096 [2023-08-29 18:51:06,643 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 120 transitions, 417 flow. Second operand has 6 states, 6 states have (on average 509.6666666666667) internal successors, (3058), 6 states have internal predecessors, (3058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:51:06,643 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:51:06,643 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 506 of 1096 [2023-08-29 18:51:06,643 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:51:08,084 INFO L130 PetriNetUnfolder]: 7266/16930 cut-off events. [2023-08-29 18:51:08,084 INFO L131 PetriNetUnfolder]: For 2334/2453 co-relation queries the response was YES. [2023-08-29 18:51:08,134 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32622 conditions, 16930 events. 7266/16930 cut-off events. For 2334/2453 co-relation queries the response was YES. Maximal size of possible extension queue 563. Compared 159231 event pairs, 3909 based on Foata normal form. 0/16568 useless extension candidates. Maximal degree in co-relation 32605. Up to 7681 conditions per place. [2023-08-29 18:51:08,173 INFO L137 encePairwiseOnDemand]: 1090/1096 looper letters, 132 selfloop transitions, 5 changer transitions 0/195 dead transitions. [2023-08-29 18:51:08,173 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 195 transitions, 913 flow [2023-08-29 18:51:08,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 18:51:08,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 18:51:08,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3145 transitions. [2023-08-29 18:51:08,177 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47825425790754256 [2023-08-29 18:51:08,177 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3145 transitions. [2023-08-29 18:51:08,177 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3145 transitions. [2023-08-29 18:51:08,177 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:51:08,178 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3145 transitions. [2023-08-29 18:51:08,180 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 524.1666666666666) internal successors, (3145), 6 states have internal predecessors, (3145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:51:08,184 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1096.0) internal successors, (7672), 7 states have internal predecessors, (7672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:51:08,184 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1096.0) internal successors, (7672), 7 states have internal predecessors, (7672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:51:08,184 INFO L175 Difference]: Start difference. First operand has 129 places, 120 transitions, 417 flow. Second operand 6 states and 3145 transitions. [2023-08-29 18:51:08,185 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 195 transitions, 913 flow [2023-08-29 18:51:08,190 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 195 transitions, 895 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-29 18:51:08,192 INFO L231 Difference]: Finished difference. Result has 128 places, 119 transitions, 415 flow [2023-08-29 18:51:08,192 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1096, PETRI_DIFFERENCE_MINUEND_FLOW=405, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=114, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=415, PETRI_PLACES=128, PETRI_TRANSITIONS=119} [2023-08-29 18:51:08,193 INFO L281 CegarLoopForPetriNet]: 143 programPoint places, -15 predicate places. [2023-08-29 18:51:08,193 INFO L495 AbstractCegarLoop]: Abstraction has has 128 places, 119 transitions, 415 flow [2023-08-29 18:51:08,194 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 509.6666666666667) internal successors, (3058), 6 states have internal predecessors, (3058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:51:08,194 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:51:08,194 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:51:08,194 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-08-29 18:51:08,194 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting thread2Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 80 more)] === [2023-08-29 18:51:08,194 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:51:08,195 INFO L85 PathProgramCache]: Analyzing trace with hash -1550886146, now seen corresponding path program 1 times [2023-08-29 18:51:08,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:51:08,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799599229] [2023-08-29 18:51:08,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:51:08,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:51:08,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:51:08,628 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-08-29 18:51:08,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:51:08,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799599229] [2023-08-29 18:51:08,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [799599229] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:51:08,628 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:51:08,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 18:51:08,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375572081] [2023-08-29 18:51:08,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:51:08,629 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 18:51:08,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:51:08,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 18:51:08,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 18:51:09,020 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 506 out of 1096 [2023-08-29 18:51:09,022 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 119 transitions, 415 flow. Second operand has 6 states, 6 states have (on average 509.1666666666667) internal successors, (3055), 6 states have internal predecessors, (3055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:51:09,022 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:51:09,022 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 506 of 1096 [2023-08-29 18:51:09,022 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:51:10,505 INFO L130 PetriNetUnfolder]: 7773/17925 cut-off events. [2023-08-29 18:51:10,505 INFO L131 PetriNetUnfolder]: For 2551/2670 co-relation queries the response was YES. [2023-08-29 18:51:10,616 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34465 conditions, 17925 events. 7773/17925 cut-off events. For 2551/2670 co-relation queries the response was YES. Maximal size of possible extension queue 611. Compared 169056 event pairs, 4218 based on Foata normal form. 0/17523 useless extension candidates. Maximal degree in co-relation 34448. Up to 8206 conditions per place. [2023-08-29 18:51:10,667 INFO L137 encePairwiseOnDemand]: 1090/1096 looper letters, 141 selfloop transitions, 5 changer transitions 0/202 dead transitions. [2023-08-29 18:51:10,667 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 202 transitions, 953 flow [2023-08-29 18:51:10,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 18:51:10,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 18:51:10,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3154 transitions. [2023-08-29 18:51:10,671 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4796228710462287 [2023-08-29 18:51:10,671 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3154 transitions. [2023-08-29 18:51:10,671 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3154 transitions. [2023-08-29 18:51:10,672 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:51:10,672 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3154 transitions. [2023-08-29 18:51:10,674 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 525.6666666666666) internal successors, (3154), 6 states have internal predecessors, (3154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:51:10,677 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1096.0) internal successors, (7672), 7 states have internal predecessors, (7672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:51:10,678 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1096.0) internal successors, (7672), 7 states have internal predecessors, (7672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:51:10,678 INFO L175 Difference]: Start difference. First operand has 128 places, 119 transitions, 415 flow. Second operand 6 states and 3154 transitions. [2023-08-29 18:51:10,678 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 202 transitions, 953 flow [2023-08-29 18:51:10,693 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 202 transitions, 927 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-29 18:51:10,695 INFO L231 Difference]: Finished difference. Result has 127 places, 118 transitions, 413 flow [2023-08-29 18:51:10,696 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1096, PETRI_DIFFERENCE_MINUEND_FLOW=403, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=413, PETRI_PLACES=127, PETRI_TRANSITIONS=118} [2023-08-29 18:51:10,696 INFO L281 CegarLoopForPetriNet]: 143 programPoint places, -16 predicate places. [2023-08-29 18:51:10,696 INFO L495 AbstractCegarLoop]: Abstraction has has 127 places, 118 transitions, 413 flow [2023-08-29 18:51:10,697 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 509.1666666666667) internal successors, (3055), 6 states have internal predecessors, (3055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:51:10,697 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 18:51:10,697 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:51:10,697 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-08-29 18:51:10,697 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 80 more)] === [2023-08-29 18:51:10,698 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 18:51:10,698 INFO L85 PathProgramCache]: Analyzing trace with hash -607526621, now seen corresponding path program 1 times [2023-08-29 18:51:10,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 18:51:10,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769359285] [2023-08-29 18:51:10,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 18:51:10,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 18:51:10,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 18:51:11,225 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-08-29 18:51:11,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 18:51:11,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769359285] [2023-08-29 18:51:11,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1769359285] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 18:51:11,226 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 18:51:11,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 18:51:11,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115823811] [2023-08-29 18:51:11,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 18:51:11,227 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 18:51:11,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 18:51:11,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 18:51:11,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 18:51:11,531 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 507 out of 1096 [2023-08-29 18:51:11,532 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 118 transitions, 413 flow. Second operand has 6 states, 6 states have (on average 511.8333333333333) internal successors, (3071), 6 states have internal predecessors, (3071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:51:11,532 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 18:51:11,532 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 507 of 1096 [2023-08-29 18:51:11,532 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 18:51:12,708 INFO L130 PetriNetUnfolder]: 6041/15713 cut-off events. [2023-08-29 18:51:12,709 INFO L131 PetriNetUnfolder]: For 1908/2027 co-relation queries the response was YES. [2023-08-29 18:51:12,766 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28961 conditions, 15713 events. 6041/15713 cut-off events. For 1908/2027 co-relation queries the response was YES. Maximal size of possible extension queue 512. Compared 155881 event pairs, 4190 based on Foata normal form. 0/15360 useless extension candidates. Maximal degree in co-relation 28944. Up to 8252 conditions per place. [2023-08-29 18:51:12,775 INFO L137 encePairwiseOnDemand]: 1091/1096 looper letters, 0 selfloop transitions, 0 changer transitions 153/153 dead transitions. [2023-08-29 18:51:12,776 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 153 transitions, 707 flow [2023-08-29 18:51:12,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 18:51:12,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 18:51:12,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3116 transitions. [2023-08-29 18:51:12,780 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4738442822384428 [2023-08-29 18:51:12,780 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3116 transitions. [2023-08-29 18:51:12,780 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3116 transitions. [2023-08-29 18:51:12,781 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 18:51:12,781 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3116 transitions. [2023-08-29 18:51:12,784 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 519.3333333333334) internal successors, (3116), 6 states have internal predecessors, (3116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:51:12,788 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1096.0) internal successors, (7672), 7 states have internal predecessors, (7672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:51:12,788 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1096.0) internal successors, (7672), 7 states have internal predecessors, (7672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:51:12,789 INFO L175 Difference]: Start difference. First operand has 127 places, 118 transitions, 413 flow. Second operand 6 states and 3116 transitions. [2023-08-29 18:51:12,789 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 153 transitions, 707 flow [2023-08-29 18:51:12,792 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 153 transitions, 697 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-29 18:51:12,793 INFO L231 Difference]: Finished difference. Result has 126 places, 0 transitions, 0 flow [2023-08-29 18:51:12,794 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1096, PETRI_DIFFERENCE_MINUEND_FLOW=401, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=126, PETRI_TRANSITIONS=0} [2023-08-29 18:51:12,794 INFO L281 CegarLoopForPetriNet]: 143 programPoint places, -17 predicate places. [2023-08-29 18:51:12,794 INFO L495 AbstractCegarLoop]: Abstraction has has 126 places, 0 transitions, 0 flow [2023-08-29 18:51:12,795 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 511.8333333333333) internal successors, (3071), 6 states have internal predecessors, (3071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 18:51:12,797 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (83 of 84 remaining) [2023-08-29 18:51:12,797 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (82 of 84 remaining) [2023-08-29 18:51:12,797 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (81 of 84 remaining) [2023-08-29 18:51:12,797 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (80 of 84 remaining) [2023-08-29 18:51:12,797 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONDATA_RACE (79 of 84 remaining) [2023-08-29 18:51:12,798 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONDATA_RACE (78 of 84 remaining) [2023-08-29 18:51:12,798 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (77 of 84 remaining) [2023-08-29 18:51:12,798 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (76 of 84 remaining) [2023-08-29 18:51:12,798 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (75 of 84 remaining) [2023-08-29 18:51:12,798 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (74 of 84 remaining) [2023-08-29 18:51:12,798 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (73 of 84 remaining) [2023-08-29 18:51:12,798 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (72 of 84 remaining) [2023-08-29 18:51:12,799 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (71 of 84 remaining) [2023-08-29 18:51:12,799 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (70 of 84 remaining) [2023-08-29 18:51:12,799 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (69 of 84 remaining) [2023-08-29 18:51:12,799 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (68 of 84 remaining) [2023-08-29 18:51:12,799 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONDATA_RACE (67 of 84 remaining) [2023-08-29 18:51:12,799 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (66 of 84 remaining) [2023-08-29 18:51:12,800 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (65 of 84 remaining) [2023-08-29 18:51:12,800 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (64 of 84 remaining) [2023-08-29 18:51:12,800 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (63 of 84 remaining) [2023-08-29 18:51:12,800 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (62 of 84 remaining) [2023-08-29 18:51:12,800 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (61 of 84 remaining) [2023-08-29 18:51:12,800 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (60 of 84 remaining) [2023-08-29 18:51:12,800 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (59 of 84 remaining) [2023-08-29 18:51:12,801 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONDATA_RACE (58 of 84 remaining) [2023-08-29 18:51:12,801 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err9ASSERT_VIOLATIONDATA_RACE (57 of 84 remaining) [2023-08-29 18:51:12,801 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err10ASSERT_VIOLATIONDATA_RACE (56 of 84 remaining) [2023-08-29 18:51:12,801 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONDATA_RACE (55 of 84 remaining) [2023-08-29 18:51:12,801 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONDATA_RACE (54 of 84 remaining) [2023-08-29 18:51:12,801 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err6ASSERT_VIOLATIONDATA_RACE (53 of 84 remaining) [2023-08-29 18:51:12,801 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err7ASSERT_VIOLATIONDATA_RACE (52 of 84 remaining) [2023-08-29 18:51:12,802 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err8ASSERT_VIOLATIONDATA_RACE (51 of 84 remaining) [2023-08-29 18:51:12,802 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (50 of 84 remaining) [2023-08-29 18:51:12,802 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (49 of 84 remaining) [2023-08-29 18:51:12,802 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (48 of 84 remaining) [2023-08-29 18:51:12,802 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (47 of 84 remaining) [2023-08-29 18:51:12,802 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (46 of 84 remaining) [2023-08-29 18:51:12,803 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (45 of 84 remaining) [2023-08-29 18:51:12,803 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (44 of 84 remaining) [2023-08-29 18:51:12,803 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (43 of 84 remaining) [2023-08-29 18:51:12,803 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (42 of 84 remaining) [2023-08-29 18:51:12,803 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (41 of 84 remaining) [2023-08-29 18:51:12,803 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (40 of 84 remaining) [2023-08-29 18:51:12,803 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (39 of 84 remaining) [2023-08-29 18:51:12,804 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (38 of 84 remaining) [2023-08-29 18:51:12,804 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (37 of 84 remaining) [2023-08-29 18:51:12,804 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (36 of 84 remaining) [2023-08-29 18:51:12,804 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (35 of 84 remaining) [2023-08-29 18:51:12,804 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (34 of 84 remaining) [2023-08-29 18:51:12,804 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (33 of 84 remaining) [2023-08-29 18:51:12,804 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (32 of 84 remaining) [2023-08-29 18:51:12,805 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (31 of 84 remaining) [2023-08-29 18:51:12,805 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (30 of 84 remaining) [2023-08-29 18:51:12,805 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (29 of 84 remaining) [2023-08-29 18:51:12,805 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONDATA_RACE (28 of 84 remaining) [2023-08-29 18:51:12,805 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONDATA_RACE (27 of 84 remaining) [2023-08-29 18:51:12,805 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (26 of 84 remaining) [2023-08-29 18:51:12,805 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (25 of 84 remaining) [2023-08-29 18:51:12,806 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (24 of 84 remaining) [2023-08-29 18:51:12,806 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (23 of 84 remaining) [2023-08-29 18:51:12,806 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (22 of 84 remaining) [2023-08-29 18:51:12,806 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (21 of 84 remaining) [2023-08-29 18:51:12,806 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (20 of 84 remaining) [2023-08-29 18:51:12,806 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (19 of 84 remaining) [2023-08-29 18:51:12,807 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (18 of 84 remaining) [2023-08-29 18:51:12,807 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (17 of 84 remaining) [2023-08-29 18:51:12,807 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONDATA_RACE (16 of 84 remaining) [2023-08-29 18:51:12,807 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (15 of 84 remaining) [2023-08-29 18:51:12,807 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (14 of 84 remaining) [2023-08-29 18:51:12,807 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (13 of 84 remaining) [2023-08-29 18:51:12,807 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (12 of 84 remaining) [2023-08-29 18:51:12,808 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (11 of 84 remaining) [2023-08-29 18:51:12,808 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (10 of 84 remaining) [2023-08-29 18:51:12,808 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (9 of 84 remaining) [2023-08-29 18:51:12,808 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (8 of 84 remaining) [2023-08-29 18:51:12,808 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONDATA_RACE (7 of 84 remaining) [2023-08-29 18:51:12,808 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err9ASSERT_VIOLATIONDATA_RACE (6 of 84 remaining) [2023-08-29 18:51:12,808 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err10ASSERT_VIOLATIONDATA_RACE (5 of 84 remaining) [2023-08-29 18:51:12,809 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONDATA_RACE (4 of 84 remaining) [2023-08-29 18:51:12,809 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONDATA_RACE (3 of 84 remaining) [2023-08-29 18:51:12,809 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err6ASSERT_VIOLATIONDATA_RACE (2 of 84 remaining) [2023-08-29 18:51:12,809 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err7ASSERT_VIOLATIONDATA_RACE (1 of 84 remaining) [2023-08-29 18:51:12,809 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err8ASSERT_VIOLATIONDATA_RACE (0 of 84 remaining) [2023-08-29 18:51:12,809 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-08-29 18:51:12,810 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 18:51:12,815 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-29 18:51:12,815 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-29 18:51:12,817 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 06:51:12 BasicIcfg [2023-08-29 18:51:12,818 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-29 18:51:12,818 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-29 18:51:12,818 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-29 18:51:12,818 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-29 18:51:12,819 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 06:50:25" (3/4) ... [2023-08-29 18:51:12,821 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-29 18:51:12,826 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2023-08-29 18:51:12,826 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2023-08-29 18:51:12,826 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2023-08-29 18:51:12,842 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 31 nodes and edges [2023-08-29 18:51:12,842 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-08-29 18:51:12,843 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-29 18:51:12,843 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-29 18:51:12,910 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-29 18:51:12,910 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-29 18:51:12,911 INFO L158 Benchmark]: Toolchain (without parser) took 48765.75ms. Allocated memory was 73.4MB in the beginning and 4.3GB in the end (delta: 4.3GB). Free memory was 52.0MB in the beginning and 3.4GB in the end (delta: -3.4GB). Peak memory consumption was 896.3MB. Max. memory is 16.1GB. [2023-08-29 18:51:12,911 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 73.4MB. Free memory is still 51.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 18:51:12,911 INFO L158 Benchmark]: CACSL2BoogieTranslator took 221.59ms. Allocated memory is still 73.4MB. Free memory was 51.8MB in the beginning and 38.8MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-08-29 18:51:12,912 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.42ms. Allocated memory is still 73.4MB. Free memory was 38.6MB in the beginning and 53.3MB in the end (delta: -14.7MB). Peak memory consumption was 8.6MB. Max. memory is 16.1GB. [2023-08-29 18:51:12,912 INFO L158 Benchmark]: Boogie Preprocessor took 100.14ms. Allocated memory is still 73.4MB. Free memory was 53.3MB in the beginning and 50.1MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 18:51:12,912 INFO L158 Benchmark]: RCFGBuilder took 1001.15ms. Allocated memory was 73.4MB in the beginning and 94.4MB in the end (delta: 21.0MB). Free memory was 49.9MB in the beginning and 49.3MB in the end (delta: 639.4kB). Peak memory consumption was 25.4MB. Max. memory is 16.1GB. [2023-08-29 18:51:12,913 INFO L158 Benchmark]: TraceAbstraction took 47279.97ms. Allocated memory was 94.4MB in the beginning and 4.3GB in the end (delta: 4.2GB). Free memory was 48.4MB in the beginning and 3.4GB in the end (delta: -3.4GB). Peak memory consumption was 2.7GB. Max. memory is 16.1GB. [2023-08-29 18:51:12,913 INFO L158 Benchmark]: Witness Printer took 92.41ms. Allocated memory is still 4.3GB. Free memory was 3.4GB in the beginning and 3.4GB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-08-29 18:51:12,915 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 73.4MB. Free memory is still 51.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 221.59ms. Allocated memory is still 73.4MB. Free memory was 51.8MB in the beginning and 38.8MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.42ms. Allocated memory is still 73.4MB. Free memory was 38.6MB in the beginning and 53.3MB in the end (delta: -14.7MB). Peak memory consumption was 8.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 100.14ms. Allocated memory is still 73.4MB. Free memory was 53.3MB in the beginning and 50.1MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1001.15ms. Allocated memory was 73.4MB in the beginning and 94.4MB in the end (delta: 21.0MB). Free memory was 49.9MB in the beginning and 49.3MB in the end (delta: 639.4kB). Peak memory consumption was 25.4MB. Max. memory is 16.1GB. * TraceAbstraction took 47279.97ms. Allocated memory was 94.4MB in the beginning and 4.3GB in the end (delta: 4.2GB). Free memory was 48.4MB in the beginning and 3.4GB in the end (delta: -3.4GB). Peak memory consumption was 2.7GB. Max. memory is 16.1GB. * Witness Printer took 92.41ms. Allocated memory is still 4.3GB. Free memory was 3.4GB in the beginning and 3.4GB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 11.1s, 512 PlacesBefore, 143 PlacesAfterwards, 533 TransitionsBefore, 139 TransitionsAfterwards, 67830 CoEnabledTransitionPairs, 8 FixpointIterations, 203 TrivialSequentialCompositions, 248 ConcurrentSequentialCompositions, 33 TrivialYvCompositions, 30 ConcurrentYvCompositions, 25 ChoiceCompositions, 539 TotalNumberOfCompositions, 213738 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 85454, independent: 83858, independent conditional: 0, independent unconditional: 83858, dependent: 1596, dependent conditional: 0, dependent unconditional: 1596, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 36105, independent: 35865, independent conditional: 0, independent unconditional: 35865, dependent: 240, dependent conditional: 0, dependent unconditional: 240, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 85454, independent: 47993, independent conditional: 0, independent unconditional: 47993, dependent: 1356, dependent conditional: 0, dependent unconditional: 1356, unknown: 36105, unknown conditional: 0, unknown unconditional: 36105] , Statistics on independence cache: Total cache size (in pairs): 2278, Positive cache size: 2121, Positive conditional cache size: 0, Positive unconditional cache size: 2121, Negative cache size: 157, Negative conditional cache size: 0, Negative unconditional cache size: 157, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 54]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 58]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 58]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 54]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 54]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 54]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 54]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 55]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 63]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 65]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 68]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 72]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 72]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 68]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 68]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 68]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 68]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 69]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 77]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 78]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 79]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 82]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 86]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 86]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 82]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 82]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 82]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 82]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 83]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 93]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 120]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 94]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 120]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 95]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 120]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 96]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 97]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 98]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 104]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 105]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 106]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 108]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 108]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 108]: 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 7 procedures, 798 locations, 84 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: 47.1s, OverallIterations: 19, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 28.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 11.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4088 SdHoareTripleChecker+Valid, 6.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2544 mSDsluCounter, 405 SdHoareTripleChecker+Invalid, 5.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 67 mSDsCounter, 1388 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 9167 IncrementalHoareTripleChecker+Invalid, 10555 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1388 mSolverCounterUnsat, 338 mSDtfsCounter, 9167 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 193 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=442occurred in iteration=10, InterpolantAutomatonStates: 91, 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: 0.2s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 5.2s InterpolantComputationTime, 570 NumberOfCodeBlocks, 558 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 592 ConstructedInterpolants, 0 QuantifiedInterpolants, 1724 SizeOfPredicates, 2 NumberOfNonLiveVariables, 971 ConjunctsInSsa, 32 ConjunctsInUnsatCore, 24 InterpolantComputations, 17 PerfectInterpolantSequences, 533/576 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 48 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-29 18:51:12,945 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