./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-race-challenges/thread-join-counter-inner-race-5.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_282804e8-a491-4428-bbb8-f2e7f80b8d0f/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_282804e8-a491-4428-bbb8-f2e7f80b8d0f/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_282804e8-a491-4428-bbb8-f2e7f80b8d0f/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_282804e8-a491-4428-bbb8-f2e7f80b8d0f/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-race-challenges/thread-join-counter-inner-race-5.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_282804e8-a491-4428-bbb8-f2e7f80b8d0f/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_282804e8-a491-4428-bbb8-f2e7f80b8d0f/bin/uautomizer-verify-4GaUIPS5ZU --witnessprinter.witness.filename witness --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 9c9074e122b1777f395c954ed30ab626f529c102cb2614b7e83435b6d498a843 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:18:06,280 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:18:06,393 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_282804e8-a491-4428-bbb8-f2e7f80b8d0f/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-31 22:18:06,403 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:18:06,404 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:18:06,451 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:18:06,454 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:18:06,455 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:18:06,455 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:18:06,456 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:18:06,457 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:18:06,457 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:18:06,457 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:18:06,458 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:18:06,458 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 22:18:06,459 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:18:06,459 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:18:06,460 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:18:06,460 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:18:06,461 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 22:18:06,461 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:18:06,462 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 22:18:06,462 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-31 22:18:06,462 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:18:06,463 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 22:18:06,463 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:18:06,464 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:18:06,464 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:18:06,464 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:18:06,465 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:18:06,465 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:18:06,466 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:18:06,466 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:18:06,466 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:18:06,467 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 22:18:06,467 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:18:06,467 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:18:06,468 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:18:06,468 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:18:06,469 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:18:06,469 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:18:06,470 INFO L153 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_282804e8-a491-4428-bbb8-f2e7f80b8d0f/bin/uautomizer-verify-4GaUIPS5ZU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_282804e8-a491-4428-bbb8-f2e7f80b8d0f/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9c9074e122b1777f395c954ed30ab626f529c102cb2614b7e83435b6d498a843 [2024-10-31 22:18:06,851 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:18:06,887 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:18:06,890 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:18:06,892 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:18:06,893 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:18:06,894 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_282804e8-a491-4428-bbb8-f2e7f80b8d0f/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/pthread-race-challenges/thread-join-counter-inner-race-5.i Unable to find full path for "g++" [2024-10-31 22:18:09,476 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:18:09,781 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:18:09,782 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_282804e8-a491-4428-bbb8-f2e7f80b8d0f/sv-benchmarks/c/pthread-race-challenges/thread-join-counter-inner-race-5.i [2024-10-31 22:18:09,805 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_282804e8-a491-4428-bbb8-f2e7f80b8d0f/bin/uautomizer-verify-4GaUIPS5ZU/data/5cc00aa98/00a7f16bedbb4d7ea1ca36bdc5bc273e/FLAG81c265a3e [2024-10-31 22:18:09,841 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_282804e8-a491-4428-bbb8-f2e7f80b8d0f/bin/uautomizer-verify-4GaUIPS5ZU/data/5cc00aa98/00a7f16bedbb4d7ea1ca36bdc5bc273e [2024-10-31 22:18:09,847 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:18:09,849 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:18:09,851 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:18:09,852 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:18:09,860 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:18:09,861 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:18:09" (1/1) ... [2024-10-31 22:18:09,862 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@412c51ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:18:09, skipping insertion in model container [2024-10-31 22:18:09,863 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:18:09" (1/1) ... [2024-10-31 22:18:09,938 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:18:10,492 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:18:10,536 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:18:10,596 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:18:10,654 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:18:10,654 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:18:10 WrapperNode [2024-10-31 22:18:10,654 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:18:10,656 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:18:10,656 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:18:10,656 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:18:10,667 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:18:10" (1/1) ... [2024-10-31 22:18:10,688 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:18:10" (1/1) ... [2024-10-31 22:18:10,730 INFO L138 Inliner]: procedures = 159, calls = 26, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 183 [2024-10-31 22:18:10,731 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:18:10,732 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:18:10,732 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:18:10,732 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:18:10,746 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:18:10" (1/1) ... [2024-10-31 22:18:10,746 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:18:10" (1/1) ... [2024-10-31 22:18:10,751 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:18:10" (1/1) ... [2024-10-31 22:18:10,751 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:18:10" (1/1) ... [2024-10-31 22:18:10,778 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:18:10" (1/1) ... [2024-10-31 22:18:10,788 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:18:10" (1/1) ... [2024-10-31 22:18:10,791 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:18:10" (1/1) ... [2024-10-31 22:18:10,793 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:18:10" (1/1) ... [2024-10-31 22:18:10,797 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:18:10,798 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:18:10,802 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:18:10,802 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:18:10,803 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:18:10" (1/1) ... [2024-10-31 22:18:10,816 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:18:10,830 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_282804e8-a491-4428-bbb8-f2e7f80b8d0f/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:18:10,859 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_282804e8-a491-4428-bbb8-f2e7f80b8d0f/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:18:10,865 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_282804e8-a491-4428-bbb8-f2e7f80b8d0f/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:18:10,896 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-31 22:18:10,896 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:18:10,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-31 22:18:10,897 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2024-10-31 22:18:10,897 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2024-10-31 22:18:10,897 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-31 22:18:10,897 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:18:10,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:18:10,899 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-31 22:18:11,110 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:18:11,115 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:18:11,607 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-31 22:18:11,607 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:18:11,661 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:18:11,661 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-31 22:18:11,662 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:18:11 BoogieIcfgContainer [2024-10-31 22:18:11,662 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:18:11,666 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:18:11,666 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:18:11,671 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:18:11,671 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:18:09" (1/3) ... [2024-10-31 22:18:11,673 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@289b933 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:18:11, skipping insertion in model container [2024-10-31 22:18:11,673 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:18:10" (2/3) ... [2024-10-31 22:18:11,673 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@289b933 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:18:11, skipping insertion in model container [2024-10-31 22:18:11,674 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:18:11" (3/3) ... [2024-10-31 22:18:11,676 INFO L112 eAbstractionObserver]: Analyzing ICFG thread-join-counter-inner-race-5.i [2024-10-31 22:18:11,699 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:18:11,700 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2024-10-31 22:18:11,700 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-31 22:18:11,806 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-31 22:18:11,869 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 233 places, 234 transitions, 472 flow [2024-10-31 22:18:12,005 INFO L124 PetriNetUnfolderBase]: 7/261 cut-off events. [2024-10-31 22:18:12,005 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:18:12,012 INFO L83 FinitePrefix]: Finished finitePrefix Result has 265 conditions, 261 events. 7/261 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 188 event pairs, 0 based on Foata normal form. 0/243 useless extension candidates. Maximal degree in co-relation 178. Up to 4 conditions per place. [2024-10-31 22:18:12,013 INFO L82 GeneralOperation]: Start removeDead. Operand has 233 places, 234 transitions, 472 flow [2024-10-31 22:18:12,021 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 233 places, 234 transitions, 472 flow [2024-10-31 22:18:12,033 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:18:12,041 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@10d765d0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:18:12,042 INFO L334 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2024-10-31 22:18:12,093 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 22:18:12,094 INFO L124 PetriNetUnfolderBase]: 2/164 cut-off events. [2024-10-31 22:18:12,094 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:18:12,098 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:18:12,099 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2024-10-31 22:18:12,100 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 10 more)] === [2024-10-31 22:18:12,107 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:18:12,108 INFO L85 PathProgramCache]: Analyzing trace with hash -1697178864, now seen corresponding path program 1 times [2024-10-31 22:18:12,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:18:12,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899526811] [2024-10-31 22:18:12,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:18:12,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:18:12,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:18:12,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:18:12,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:18:12,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899526811] [2024-10-31 22:18:12,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [899526811] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:18:12,903 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:18:12,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:18:12,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219287062] [2024-10-31 22:18:12,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:18:12,919 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:18:12,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:18:12,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:18:12,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:18:13,008 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 209 out of 234 [2024-10-31 22:18:13,013 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 233 places, 234 transitions, 472 flow. Second operand has 3 states, 3 states have (on average 210.0) internal successors, (630), 3 states have internal predecessors, (630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:18:13,014 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:18:13,014 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 209 of 234 [2024-10-31 22:18:13,015 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:18:13,364 INFO L124 PetriNetUnfolderBase]: 122/754 cut-off events. [2024-10-31 22:18:13,364 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-31 22:18:13,368 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1022 conditions, 754 events. 122/754 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 3270 event pairs, 29 based on Foata normal form. 13/702 useless extension candidates. Maximal degree in co-relation 832. Up to 167 conditions per place. [2024-10-31 22:18:13,373 INFO L140 encePairwiseOnDemand]: 222/234 looper letters, 28 selfloop transitions, 6 changer transitions 1/243 dead transitions. [2024-10-31 22:18:13,373 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 233 places, 243 transitions, 558 flow [2024-10-31 22:18:13,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:18:13,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:18:13,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 669 transitions. [2024-10-31 22:18:13,393 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9529914529914529 [2024-10-31 22:18:13,396 INFO L175 Difference]: Start difference. First operand has 233 places, 234 transitions, 472 flow. Second operand 3 states and 669 transitions. [2024-10-31 22:18:13,397 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 233 places, 243 transitions, 558 flow [2024-10-31 22:18:13,404 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 233 places, 243 transitions, 558 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 22:18:13,413 INFO L231 Difference]: Finished difference. Result has 235 places, 232 transitions, 502 flow [2024-10-31 22:18:13,415 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=234, PETRI_DIFFERENCE_MINUEND_FLOW=462, PETRI_DIFFERENCE_MINUEND_PLACES=231, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=229, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=223, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=502, PETRI_PLACES=235, PETRI_TRANSITIONS=232} [2024-10-31 22:18:13,422 INFO L277 CegarLoopForPetriNet]: 233 programPoint places, 2 predicate places. [2024-10-31 22:18:13,423 INFO L471 AbstractCegarLoop]: Abstraction has has 235 places, 232 transitions, 502 flow [2024-10-31 22:18:13,424 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 210.0) internal successors, (630), 3 states have internal predecessors, (630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:18:13,424 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:18:13,425 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:18:13,425 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:18:13,426 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 10 more)] === [2024-10-31 22:18:13,427 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:18:13,428 INFO L85 PathProgramCache]: Analyzing trace with hash -721438585, now seen corresponding path program 1 times [2024-10-31 22:18:13,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:18:13,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229353510] [2024-10-31 22:18:13,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:18:13,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:18:13,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:18:13,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:18:13,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:18:13,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229353510] [2024-10-31 22:18:13,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229353510] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:18:13,717 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:18:13,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:18:13,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812524946] [2024-10-31 22:18:13,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:18:13,721 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:18:13,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:18:13,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:18:13,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:18:13,744 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 216 out of 234 [2024-10-31 22:18:13,747 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 235 places, 232 transitions, 502 flow. Second operand has 3 states, 3 states have (on average 217.33333333333334) internal successors, (652), 3 states have internal predecessors, (652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:18:13,748 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:18:13,748 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 216 of 234 [2024-10-31 22:18:13,748 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:18:14,108 INFO L124 PetriNetUnfolderBase]: 122/847 cut-off events. [2024-10-31 22:18:14,110 INFO L125 PetriNetUnfolderBase]: For 33/33 co-relation queries the response was YES. [2024-10-31 22:18:14,114 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1203 conditions, 847 events. 122/847 cut-off events. For 33/33 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 4169 event pairs, 56 based on Foata normal form. 0/777 useless extension candidates. Maximal degree in co-relation 1010. Up to 170 conditions per place. [2024-10-31 22:18:14,119 INFO L140 encePairwiseOnDemand]: 230/234 looper letters, 19 selfloop transitions, 3 changer transitions 1/240 dead transitions. [2024-10-31 22:18:14,120 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 236 places, 240 transitions, 564 flow [2024-10-31 22:18:14,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:18:14,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:18:14,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 672 transitions. [2024-10-31 22:18:14,123 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9572649572649573 [2024-10-31 22:18:14,124 INFO L175 Difference]: Start difference. First operand has 235 places, 232 transitions, 502 flow. Second operand 3 states and 672 transitions. [2024-10-31 22:18:14,124 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 236 places, 240 transitions, 564 flow [2024-10-31 22:18:14,127 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 234 places, 240 transitions, 552 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:18:14,133 INFO L231 Difference]: Finished difference. Result has 236 places, 234 transitions, 512 flow [2024-10-31 22:18:14,134 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=234, PETRI_DIFFERENCE_MINUEND_FLOW=490, PETRI_DIFFERENCE_MINUEND_PLACES=232, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=232, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=229, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=512, PETRI_PLACES=236, PETRI_TRANSITIONS=234} [2024-10-31 22:18:14,135 INFO L277 CegarLoopForPetriNet]: 233 programPoint places, 3 predicate places. [2024-10-31 22:18:14,135 INFO L471 AbstractCegarLoop]: Abstraction has has 236 places, 234 transitions, 512 flow [2024-10-31 22:18:14,136 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 217.33333333333334) internal successors, (652), 3 states have internal predecessors, (652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:18:14,136 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:18:14,136 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:18:14,136 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 22:18:14,137 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting threadErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 10 more)] === [2024-10-31 22:18:14,138 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:18:14,139 INFO L85 PathProgramCache]: Analyzing trace with hash -2096188658, now seen corresponding path program 1 times [2024-10-31 22:18:14,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:18:14,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663910651] [2024-10-31 22:18:14,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:18:14,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:18:14,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:18:14,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:18:14,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:18:14,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663910651] [2024-10-31 22:18:14,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663910651] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:18:14,353 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:18:14,354 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:18:14,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928157009] [2024-10-31 22:18:14,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:18:14,358 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:18:14,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:18:14,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:18:14,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:18:14,412 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 211 out of 234 [2024-10-31 22:18:14,414 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 236 places, 234 transitions, 512 flow. Second operand has 3 states, 3 states have (on average 213.0) internal successors, (639), 3 states have internal predecessors, (639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:18:14,414 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:18:14,414 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 211 of 234 [2024-10-31 22:18:14,414 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:18:14,671 INFO L124 PetriNetUnfolderBase]: 146/883 cut-off events. [2024-10-31 22:18:14,671 INFO L125 PetriNetUnfolderBase]: For 74/74 co-relation queries the response was YES. [2024-10-31 22:18:14,673 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1346 conditions, 883 events. 146/883 cut-off events. For 74/74 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 4273 event pairs, 73 based on Foata normal form. 0/823 useless extension candidates. Maximal degree in co-relation 1150. Up to 267 conditions per place. [2024-10-31 22:18:14,678 INFO L140 encePairwiseOnDemand]: 229/234 looper letters, 26 selfloop transitions, 5 changer transitions 0/242 dead transitions. [2024-10-31 22:18:14,678 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 238 places, 242 transitions, 594 flow [2024-10-31 22:18:14,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:18:14,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:18:14,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 661 transitions. [2024-10-31 22:18:14,682 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9415954415954416 [2024-10-31 22:18:14,682 INFO L175 Difference]: Start difference. First operand has 236 places, 234 transitions, 512 flow. Second operand 3 states and 661 transitions. [2024-10-31 22:18:14,682 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 238 places, 242 transitions, 594 flow [2024-10-31 22:18:14,687 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 236 places, 242 transitions, 588 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:18:14,694 INFO L231 Difference]: Finished difference. Result has 238 places, 238 transitions, 548 flow [2024-10-31 22:18:14,697 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=234, PETRI_DIFFERENCE_MINUEND_FLOW=506, PETRI_DIFFERENCE_MINUEND_PLACES=234, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=234, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=229, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=548, PETRI_PLACES=238, PETRI_TRANSITIONS=238} [2024-10-31 22:18:14,699 INFO L277 CegarLoopForPetriNet]: 233 programPoint places, 5 predicate places. [2024-10-31 22:18:14,699 INFO L471 AbstractCegarLoop]: Abstraction has has 238 places, 238 transitions, 548 flow [2024-10-31 22:18:14,700 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 213.0) internal successors, (639), 3 states have internal predecessors, (639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:18:14,700 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:18:14,701 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2024-10-31 22:18:14,701 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 22:18:14,702 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 10 more)] === [2024-10-31 22:18:14,703 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:18:14,704 INFO L85 PathProgramCache]: Analyzing trace with hash -869214518, now seen corresponding path program 1 times [2024-10-31 22:18:14,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:18:14,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860247336] [2024-10-31 22:18:14,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:18:14,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:18:14,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:18:14,780 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:18:14,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:18:14,897 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:18:14,897 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-31 22:18:14,900 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 13 remaining) [2024-10-31 22:18:14,902 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (11 of 13 remaining) [2024-10-31 22:18:14,903 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (10 of 13 remaining) [2024-10-31 22:18:14,903 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (9 of 13 remaining) [2024-10-31 22:18:14,903 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (8 of 13 remaining) [2024-10-31 22:18:14,904 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (7 of 13 remaining) [2024-10-31 22:18:14,905 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONDATA_RACE (6 of 13 remaining) [2024-10-31 22:18:14,906 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr4ASSERT_VIOLATIONDATA_RACE (5 of 13 remaining) [2024-10-31 22:18:14,907 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (4 of 13 remaining) [2024-10-31 22:18:14,908 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (3 of 13 remaining) [2024-10-31 22:18:14,908 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (2 of 13 remaining) [2024-10-31 22:18:14,908 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONDATA_RACE (1 of 13 remaining) [2024-10-31 22:18:14,909 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr4ASSERT_VIOLATIONDATA_RACE (0 of 13 remaining) [2024-10-31 22:18:14,909 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-31 22:18:14,909 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-10-31 22:18:14,914 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-31 22:18:14,915 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-10-31 22:18:14,974 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-31 22:18:14,986 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 282 places, 281 transitions, 572 flow [2024-10-31 22:18:15,082 INFO L124 PetriNetUnfolderBase]: 10/343 cut-off events. [2024-10-31 22:18:15,083 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-10-31 22:18:15,084 INFO L83 FinitePrefix]: Finished finitePrefix Result has 351 conditions, 343 events. 10/343 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 470 event pairs, 0 based on Foata normal form. 0/314 useless extension candidates. Maximal degree in co-relation 262. Up to 6 conditions per place. [2024-10-31 22:18:15,085 INFO L82 GeneralOperation]: Start removeDead. Operand has 282 places, 281 transitions, 572 flow [2024-10-31 22:18:15,090 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 282 places, 281 transitions, 572 flow [2024-10-31 22:18:15,094 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:18:15,095 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@10d765d0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:18:15,095 INFO L334 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2024-10-31 22:18:15,115 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 22:18:15,116 INFO L124 PetriNetUnfolderBase]: 2/164 cut-off events. [2024-10-31 22:18:15,116 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:18:15,116 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:18:15,116 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2024-10-31 22:18:15,117 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 15 more)] === [2024-10-31 22:18:15,118 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:18:15,119 INFO L85 PathProgramCache]: Analyzing trace with hash -467431543, now seen corresponding path program 1 times [2024-10-31 22:18:15,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:18:15,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671504555] [2024-10-31 22:18:15,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:18:15,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:18:15,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:18:15,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:18:15,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:18:15,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671504555] [2024-10-31 22:18:15,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1671504555] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:18:15,272 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:18:15,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:18:15,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316179476] [2024-10-31 22:18:15,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:18:15,273 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:18:15,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:18:15,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:18:15,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:18:15,336 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 241 out of 281 [2024-10-31 22:18:15,337 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 282 places, 281 transitions, 572 flow. Second operand has 3 states, 3 states have (on average 242.0) internal successors, (726), 3 states have internal predecessors, (726), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:18:15,338 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:18:15,338 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 241 of 281 [2024-10-31 22:18:15,338 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:18:19,056 INFO L124 PetriNetUnfolderBase]: 4627/13176 cut-off events. [2024-10-31 22:18:19,056 INFO L125 PetriNetUnfolderBase]: For 41/41 co-relation queries the response was YES. [2024-10-31 22:18:19,178 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20586 conditions, 13176 events. 4627/13176 cut-off events. For 41/41 co-relation queries the response was YES. Maximal size of possible extension queue 339. Compared 131624 event pairs, 1551 based on Foata normal form. 263/11950 useless extension candidates. Maximal degree in co-relation 19499. Up to 4243 conditions per place. [2024-10-31 22:18:19,249 INFO L140 encePairwiseOnDemand]: 259/281 looper letters, 54 selfloop transitions, 14 changer transitions 1/309 dead transitions. [2024-10-31 22:18:19,249 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 284 places, 309 transitions, 769 flow [2024-10-31 22:18:19,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:18:19,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:18:19,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 801 transitions. [2024-10-31 22:18:19,255 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9501779359430605 [2024-10-31 22:18:19,256 INFO L175 Difference]: Start difference. First operand has 282 places, 281 transitions, 572 flow. Second operand 3 states and 801 transitions. [2024-10-31 22:18:19,256 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 284 places, 309 transitions, 769 flow [2024-10-31 22:18:19,258 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 284 places, 309 transitions, 769 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 22:18:19,262 INFO L231 Difference]: Finished difference. Result has 286 places, 291 transitions, 686 flow [2024-10-31 22:18:19,263 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=281, PETRI_DIFFERENCE_MINUEND_FLOW=566, PETRI_DIFFERENCE_MINUEND_PLACES=282, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=278, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=264, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=686, PETRI_PLACES=286, PETRI_TRANSITIONS=291} [2024-10-31 22:18:19,265 INFO L277 CegarLoopForPetriNet]: 282 programPoint places, 4 predicate places. [2024-10-31 22:18:19,266 INFO L471 AbstractCegarLoop]: Abstraction has has 286 places, 291 transitions, 686 flow [2024-10-31 22:18:19,266 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 242.0) internal successors, (726), 3 states have internal predecessors, (726), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:18:19,266 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:18:19,267 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:18:19,267 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-31 22:18:19,267 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 15 more)] === [2024-10-31 22:18:19,268 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:18:19,268 INFO L85 PathProgramCache]: Analyzing trace with hash 1272050311, now seen corresponding path program 1 times [2024-10-31 22:18:19,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:18:19,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244849928] [2024-10-31 22:18:19,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:18:19,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:18:19,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:18:19,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:18:19,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:18:19,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244849928] [2024-10-31 22:18:19,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1244849928] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:18:19,372 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:18:19,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:18:19,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925488198] [2024-10-31 22:18:19,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:18:19,374 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:18:19,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:18:19,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:18:19,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:18:19,391 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 255 out of 281 [2024-10-31 22:18:19,393 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 286 places, 291 transitions, 686 flow. Second operand has 3 states, 3 states have (on average 256.3333333333333) internal successors, (769), 3 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:18:19,393 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:18:19,393 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 255 of 281 [2024-10-31 22:18:19,394 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:18:23,170 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([748] L714-6-->L713-1: Formula: (= 0 |v_#race~threads_alive~0_1|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_1|} AuxVars[] AssignedVars[#race~threads_alive~0][176], [281#true, Black: 285#true, 283#true, 100#L699-1true, 290#true, 218#L699-6true, 226#L713-1true, 287#(= |#race~threads_alive~0| 0)]) [2024-10-31 22:18:23,170 INFO L294 olderBase$Statistics]: this new event has 250 ancestors and is cut-off event [2024-10-31 22:18:23,170 INFO L297 olderBase$Statistics]: existing Event has 250 ancestors and is cut-off event [2024-10-31 22:18:23,170 INFO L297 olderBase$Statistics]: existing Event has 245 ancestors and is cut-off event [2024-10-31 22:18:23,170 INFO L297 olderBase$Statistics]: existing Event has 250 ancestors and is cut-off event [2024-10-31 22:18:23,193 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([748] L714-6-->L713-1: Formula: (= 0 |v_#race~threads_alive~0_1|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_1|} AuxVars[] AssignedVars[#race~threads_alive~0][176], [281#true, Black: 285#true, 25#L699-2true, 283#true, 290#true, 218#L699-6true, 226#L713-1true, 287#(= |#race~threads_alive~0| 0)]) [2024-10-31 22:18:23,194 INFO L294 olderBase$Statistics]: this new event has 251 ancestors and is cut-off event [2024-10-31 22:18:23,194 INFO L297 olderBase$Statistics]: existing Event has 251 ancestors and is cut-off event [2024-10-31 22:18:23,194 INFO L297 olderBase$Statistics]: existing Event has 246 ancestors and is cut-off event [2024-10-31 22:18:23,194 INFO L297 olderBase$Statistics]: existing Event has 251 ancestors and is cut-off event [2024-10-31 22:18:23,294 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([748] L714-6-->L713-1: Formula: (= 0 |v_#race~threads_alive~0_1|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_1|} AuxVars[] AssignedVars[#race~threads_alive~0][158], [281#true, Black: 285#true, 170#L699-6true, 283#true, 290#true, 218#L699-6true, 226#L713-1true, 287#(= |#race~threads_alive~0| 0)]) [2024-10-31 22:18:23,294 INFO L294 olderBase$Statistics]: this new event has 255 ancestors and is cut-off event [2024-10-31 22:18:23,295 INFO L297 olderBase$Statistics]: existing Event has 255 ancestors and is cut-off event [2024-10-31 22:18:23,295 INFO L297 olderBase$Statistics]: existing Event has 250 ancestors and is cut-off event [2024-10-31 22:18:23,295 INFO L297 olderBase$Statistics]: existing Event has 255 ancestors and is cut-off event [2024-10-31 22:18:23,472 INFO L124 PetriNetUnfolderBase]: 4195/15297 cut-off events. [2024-10-31 22:18:23,472 INFO L125 PetriNetUnfolderBase]: For 824/865 co-relation queries the response was YES. [2024-10-31 22:18:23,533 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24305 conditions, 15297 events. 4195/15297 cut-off events. For 824/865 co-relation queries the response was YES. Maximal size of possible extension queue 426. Compared 173391 event pairs, 2308 based on Foata normal form. 0/13689 useless extension candidates. Maximal degree in co-relation 23033. Up to 4051 conditions per place. [2024-10-31 22:18:23,603 INFO L140 encePairwiseOnDemand]: 276/281 looper letters, 34 selfloop transitions, 4 changer transitions 0/306 dead transitions. [2024-10-31 22:18:23,604 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 287 places, 306 transitions, 792 flow [2024-10-31 22:18:23,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:18:23,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:18:23,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 804 transitions. [2024-10-31 22:18:23,607 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9537366548042705 [2024-10-31 22:18:23,607 INFO L175 Difference]: Start difference. First operand has 286 places, 291 transitions, 686 flow. Second operand 3 states and 804 transitions. [2024-10-31 22:18:23,607 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 287 places, 306 transitions, 792 flow [2024-10-31 22:18:23,619 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 285 places, 306 transitions, 764 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:18:23,623 INFO L231 Difference]: Finished difference. Result has 287 places, 294 transitions, 688 flow [2024-10-31 22:18:23,624 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=281, PETRI_DIFFERENCE_MINUEND_FLOW=658, PETRI_DIFFERENCE_MINUEND_PLACES=283, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=291, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=287, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=688, PETRI_PLACES=287, PETRI_TRANSITIONS=294} [2024-10-31 22:18:23,625 INFO L277 CegarLoopForPetriNet]: 282 programPoint places, 5 predicate places. [2024-10-31 22:18:23,625 INFO L471 AbstractCegarLoop]: Abstraction has has 287 places, 294 transitions, 688 flow [2024-10-31 22:18:23,626 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 256.3333333333333) internal successors, (769), 3 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:18:23,626 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:18:23,626 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:18:23,627 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-31 22:18:23,627 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting threadErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 15 more)] === [2024-10-31 22:18:23,627 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:18:23,628 INFO L85 PathProgramCache]: Analyzing trace with hash 1235526293, now seen corresponding path program 1 times [2024-10-31 22:18:23,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:18:23,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343432623] [2024-10-31 22:18:23,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:18:23,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:18:23,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:18:23,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:18:23,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:18:23,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343432623] [2024-10-31 22:18:23,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1343432623] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:18:23,732 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:18:23,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:18:23,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372517456] [2024-10-31 22:18:23,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:18:23,733 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:18:23,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:18:23,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:18:23,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:18:23,792 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 247 out of 281 [2024-10-31 22:18:23,793 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 287 places, 294 transitions, 688 flow. Second operand has 3 states, 3 states have (on average 249.0) internal successors, (747), 3 states have internal predecessors, (747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:18:23,793 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:18:23,793 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 247 of 281 [2024-10-31 22:18:23,793 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:18:24,510 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([748] L714-6-->L713-1: Formula: (= 0 |v_#race~threads_alive~0_1|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_1|} AuxVars[] AssignedVars[#race~threads_alive~0][239], [260#L692-2true, Black: 285#true, 281#true, Black: 292#(= |#race~data~0| 0), 283#true, 290#true, 71#L692-7true, 226#L713-1true, 295#true]) [2024-10-31 22:18:24,510 INFO L294 olderBase$Statistics]: this new event has 202 ancestors and is cut-off event [2024-10-31 22:18:24,510 INFO L297 olderBase$Statistics]: existing Event has 197 ancestors and is cut-off event [2024-10-31 22:18:24,510 INFO L297 olderBase$Statistics]: existing Event has 197 ancestors and is cut-off event [2024-10-31 22:18:24,510 INFO L297 olderBase$Statistics]: existing Event has 202 ancestors and is cut-off event [2024-10-31 22:18:24,633 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([748] L714-6-->L713-1: Formula: (= 0 |v_#race~threads_alive~0_1|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_1|} AuxVars[] AssignedVars[#race~threads_alive~0][176], [281#true, 260#L692-2true, Black: 285#true, 227#L694true, Black: 292#(= |#race~data~0| 0), 283#true, 290#true, 226#L713-1true, 295#true]) [2024-10-31 22:18:24,634 INFO L294 olderBase$Statistics]: this new event has 204 ancestors and is cut-off event [2024-10-31 22:18:24,634 INFO L297 olderBase$Statistics]: existing Event has 199 ancestors and is cut-off event [2024-10-31 22:18:24,634 INFO L297 olderBase$Statistics]: existing Event has 199 ancestors and is cut-off event [2024-10-31 22:18:24,634 INFO L297 olderBase$Statistics]: existing Event has 204 ancestors and is cut-off event [2024-10-31 22:18:24,675 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([748] L714-6-->L713-1: Formula: (= 0 |v_#race~threads_alive~0_1|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_1|} AuxVars[] AssignedVars[#race~threads_alive~0][176], [281#true, Black: 285#true, 260#L692-2true, Black: 292#(= |#race~data~0| 0), 283#true, 122#L694-3true, 290#true, 226#L713-1true, 295#true]) [2024-10-31 22:18:24,676 INFO L294 olderBase$Statistics]: this new event has 205 ancestors and is cut-off event [2024-10-31 22:18:24,676 INFO L297 olderBase$Statistics]: existing Event has 200 ancestors and is cut-off event [2024-10-31 22:18:24,676 INFO L297 olderBase$Statistics]: existing Event has 205 ancestors and is cut-off event [2024-10-31 22:18:24,676 INFO L297 olderBase$Statistics]: existing Event has 200 ancestors and is cut-off event [2024-10-31 22:18:24,801 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([748] L714-6-->L713-1: Formula: (= 0 |v_#race~threads_alive~0_1|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_1|} AuxVars[] AssignedVars[#race~threads_alive~0][176], [260#L692-2true, 281#true, Black: 285#true, 240#L695-3true, Black: 292#(= |#race~data~0| 0), 283#true, 290#true, 226#L713-1true, 295#true]) [2024-10-31 22:18:24,802 INFO L294 olderBase$Statistics]: this new event has 207 ancestors and is cut-off event [2024-10-31 22:18:24,802 INFO L297 olderBase$Statistics]: existing Event has 202 ancestors and is cut-off event [2024-10-31 22:18:24,802 INFO L297 olderBase$Statistics]: existing Event has 202 ancestors and is cut-off event [2024-10-31 22:18:24,803 INFO L297 olderBase$Statistics]: existing Event has 207 ancestors and is cut-off event [2024-10-31 22:18:25,539 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([748] L714-6-->L713-1: Formula: (= 0 |v_#race~threads_alive~0_1|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_1|} AuxVars[] AssignedVars[#race~threads_alive~0][176], [281#true, 260#L692-2true, Black: 285#true, Black: 292#(= |#race~data~0| 0), 283#true, 290#true, 226#L713-1true, 279#L697-3true, 295#true]) [2024-10-31 22:18:25,539 INFO L294 olderBase$Statistics]: this new event has 217 ancestors and is cut-off event [2024-10-31 22:18:25,540 INFO L297 olderBase$Statistics]: existing Event has 217 ancestors and is cut-off event [2024-10-31 22:18:25,540 INFO L297 olderBase$Statistics]: existing Event has 212 ancestors and is cut-off event [2024-10-31 22:18:25,540 INFO L297 olderBase$Statistics]: existing Event has 212 ancestors and is cut-off event [2024-10-31 22:18:25,667 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([748] L714-6-->L713-1: Formula: (= 0 |v_#race~threads_alive~0_1|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_1|} AuxVars[] AssignedVars[#race~threads_alive~0][176], [Black: 285#true, 281#true, 260#L692-2true, Black: 292#(= |#race~data~0| 0), 283#true, 67#L698-3true, 290#true, 226#L713-1true, 295#true]) [2024-10-31 22:18:25,667 INFO L294 olderBase$Statistics]: this new event has 219 ancestors and is cut-off event [2024-10-31 22:18:25,667 INFO L297 olderBase$Statistics]: existing Event has 214 ancestors and is cut-off event [2024-10-31 22:18:25,667 INFO L297 olderBase$Statistics]: existing Event has 219 ancestors and is cut-off event [2024-10-31 22:18:25,667 INFO L297 olderBase$Statistics]: existing Event has 214 ancestors and is cut-off event [2024-10-31 22:18:26,238 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([748] L714-6-->L713-1: Formula: (= 0 |v_#race~threads_alive~0_1|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_1|} AuxVars[] AssignedVars[#race~threads_alive~0][239], [281#true, 253#L699-2true, Black: 285#true, Black: 292#(= |#race~data~0| 0), 283#true, 290#true, 71#L692-7true, 226#L713-1true, 295#true]) [2024-10-31 22:18:26,238 INFO L294 olderBase$Statistics]: this new event has 227 ancestors and is cut-off event [2024-10-31 22:18:26,238 INFO L297 olderBase$Statistics]: existing Event has 222 ancestors and is cut-off event [2024-10-31 22:18:26,238 INFO L297 olderBase$Statistics]: existing Event has 227 ancestors and is cut-off event [2024-10-31 22:18:26,238 INFO L297 olderBase$Statistics]: existing Event has 222 ancestors and is cut-off event [2024-10-31 22:18:26,445 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([748] L714-6-->L713-1: Formula: (= 0 |v_#race~threads_alive~0_1|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_1|} AuxVars[] AssignedVars[#race~threads_alive~0][176], [253#L699-2true, 281#true, Black: 285#true, 227#L694true, Black: 292#(= |#race~data~0| 0), 283#true, 290#true, 226#L713-1true, 295#true]) [2024-10-31 22:18:26,445 INFO L294 olderBase$Statistics]: this new event has 229 ancestors and is cut-off event [2024-10-31 22:18:26,445 INFO L297 olderBase$Statistics]: existing Event has 224 ancestors and is cut-off event [2024-10-31 22:18:26,445 INFO L297 olderBase$Statistics]: existing Event has 224 ancestors and is cut-off event [2024-10-31 22:18:26,445 INFO L297 olderBase$Statistics]: existing Event has 229 ancestors and is cut-off event [2024-10-31 22:18:26,494 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([748] L714-6-->L713-1: Formula: (= 0 |v_#race~threads_alive~0_1|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_1|} AuxVars[] AssignedVars[#race~threads_alive~0][176], [281#true, 253#L699-2true, Black: 285#true, Black: 292#(= |#race~data~0| 0), 283#true, 122#L694-3true, 290#true, 226#L713-1true, 295#true]) [2024-10-31 22:18:26,494 INFO L294 olderBase$Statistics]: this new event has 230 ancestors and is cut-off event [2024-10-31 22:18:26,494 INFO L297 olderBase$Statistics]: existing Event has 225 ancestors and is cut-off event [2024-10-31 22:18:26,494 INFO L297 olderBase$Statistics]: existing Event has 225 ancestors and is cut-off event [2024-10-31 22:18:26,495 INFO L297 olderBase$Statistics]: existing Event has 230 ancestors and is cut-off event [2024-10-31 22:18:26,694 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([748] L714-6-->L713-1: Formula: (= 0 |v_#race~threads_alive~0_1|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_1|} AuxVars[] AssignedVars[#race~threads_alive~0][176], [281#true, 253#L699-2true, Black: 285#true, 240#L695-3true, Black: 292#(= |#race~data~0| 0), 283#true, 290#true, 226#L713-1true, 295#true]) [2024-10-31 22:18:26,694 INFO L294 olderBase$Statistics]: this new event has 232 ancestors and is cut-off event [2024-10-31 22:18:26,694 INFO L297 olderBase$Statistics]: existing Event has 232 ancestors and is cut-off event [2024-10-31 22:18:26,694 INFO L297 olderBase$Statistics]: existing Event has 227 ancestors and is cut-off event [2024-10-31 22:18:26,694 INFO L297 olderBase$Statistics]: existing Event has 227 ancestors and is cut-off event [2024-10-31 22:18:27,021 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([748] L714-6-->L713-1: Formula: (= 0 |v_#race~threads_alive~0_1|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_1|} AuxVars[] AssignedVars[#race~threads_alive~0][176], [253#L699-2true, 281#true, Black: 285#true, Black: 292#(= |#race~data~0| 0), 283#true, 290#true, 226#L713-1true, 279#L697-3true, 295#true]) [2024-10-31 22:18:27,021 INFO L294 olderBase$Statistics]: this new event has 242 ancestors and is cut-off event [2024-10-31 22:18:27,021 INFO L297 olderBase$Statistics]: existing Event has 237 ancestors and is cut-off event [2024-10-31 22:18:27,021 INFO L297 olderBase$Statistics]: existing Event has 237 ancestors and is cut-off event [2024-10-31 22:18:27,021 INFO L297 olderBase$Statistics]: existing Event has 242 ancestors and is cut-off event [2024-10-31 22:18:27,072 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([748] L714-6-->L713-1: Formula: (= 0 |v_#race~threads_alive~0_1|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_1|} AuxVars[] AssignedVars[#race~threads_alive~0][176], [281#true, Black: 285#true, 253#L699-2true, Black: 292#(= |#race~data~0| 0), 283#true, 67#L698-3true, 290#true, 226#L713-1true, 295#true]) [2024-10-31 22:18:27,072 INFO L294 olderBase$Statistics]: this new event has 244 ancestors and is cut-off event [2024-10-31 22:18:27,072 INFO L297 olderBase$Statistics]: existing Event has 239 ancestors and is cut-off event [2024-10-31 22:18:27,072 INFO L297 olderBase$Statistics]: existing Event has 239 ancestors and is cut-off event [2024-10-31 22:18:27,072 INFO L297 olderBase$Statistics]: existing Event has 244 ancestors and is cut-off event [2024-10-31 22:18:27,520 INFO L124 PetriNetUnfolderBase]: 5628/18178 cut-off events. [2024-10-31 22:18:27,520 INFO L125 PetriNetUnfolderBase]: For 2763/3030 co-relation queries the response was YES. [2024-10-31 22:18:27,562 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31893 conditions, 18178 events. 5628/18178 cut-off events. For 2763/3030 co-relation queries the response was YES. Maximal size of possible extension queue 484. Compared 201285 event pairs, 2940 based on Foata normal form. 94/16426 useless extension candidates. Maximal degree in co-relation 25904. Up to 7546 conditions per place. [2024-10-31 22:18:27,656 INFO L140 encePairwiseOnDemand]: 272/281 looper letters, 49 selfloop transitions, 14 changer transitions 0/317 dead transitions. [2024-10-31 22:18:27,656 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 289 places, 317 transitions, 885 flow [2024-10-31 22:18:27,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:18:27,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:18:27,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 791 transitions. [2024-10-31 22:18:27,660 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9383155397390273 [2024-10-31 22:18:27,660 INFO L175 Difference]: Start difference. First operand has 287 places, 294 transitions, 688 flow. Second operand 3 states and 791 transitions. [2024-10-31 22:18:27,661 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 289 places, 317 transitions, 885 flow [2024-10-31 22:18:27,695 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 287 places, 317 transitions, 877 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:18:27,701 INFO L231 Difference]: Finished difference. Result has 289 places, 306 transitions, 806 flow [2024-10-31 22:18:27,702 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=281, PETRI_DIFFERENCE_MINUEND_FLOW=680, PETRI_DIFFERENCE_MINUEND_PLACES=285, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=294, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=280, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=806, PETRI_PLACES=289, PETRI_TRANSITIONS=306} [2024-10-31 22:18:27,703 INFO L277 CegarLoopForPetriNet]: 282 programPoint places, 7 predicate places. [2024-10-31 22:18:27,703 INFO L471 AbstractCegarLoop]: Abstraction has has 289 places, 306 transitions, 806 flow [2024-10-31 22:18:27,704 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 249.0) internal successors, (747), 3 states have internal predecessors, (747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:18:27,704 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:18:27,704 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:18:27,705 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-31 22:18:27,705 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting threadErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 15 more)] === [2024-10-31 22:18:27,706 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:18:27,706 INFO L85 PathProgramCache]: Analyzing trace with hash -1557606692, now seen corresponding path program 1 times [2024-10-31 22:18:27,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:18:27,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346715209] [2024-10-31 22:18:27,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:18:27,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:18:27,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:18:27,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:18:27,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:18:27,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346715209] [2024-10-31 22:18:27,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1346715209] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:18:27,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:18:27,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:18:27,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143816863] [2024-10-31 22:18:27,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:18:27,852 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:18:27,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:18:27,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:18:27,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:18:27,876 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 253 out of 281 [2024-10-31 22:18:27,878 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 289 places, 306 transitions, 806 flow. Second operand has 3 states, 3 states have (on average 255.33333333333334) internal successors, (766), 3 states have internal predecessors, (766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:18:27,878 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:18:27,878 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 253 of 281 [2024-10-31 22:18:27,879 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:18:28,623 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([748] L714-6-->L713-1: Formula: (= 0 |v_#race~threads_alive~0_1|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_1|} AuxVars[] AssignedVars[#race~threads_alive~0][234], [Black: 285#true, 260#L692-2true, 281#true, Black: 292#(= |#race~data~0| 0), 283#true, Black: 297#(= |threadThread1of2ForFork0_#t~nondet2| |#race~threads_alive~0|), 300#true, 71#L692-7true, 226#L713-1true, 295#true]) [2024-10-31 22:18:28,624 INFO L294 olderBase$Statistics]: this new event has 202 ancestors and is cut-off event [2024-10-31 22:18:28,624 INFO L297 olderBase$Statistics]: existing Event has 197 ancestors and is cut-off event [2024-10-31 22:18:28,624 INFO L297 olderBase$Statistics]: existing Event has 202 ancestors and is cut-off event [2024-10-31 22:18:28,624 INFO L297 olderBase$Statistics]: existing Event has 197 ancestors and is cut-off event [2024-10-31 22:18:28,759 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([748] L714-6-->L713-1: Formula: (= 0 |v_#race~threads_alive~0_1|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_1|} AuxVars[] AssignedVars[#race~threads_alive~0][176], [Black: 285#true, 260#L692-2true, 281#true, 227#L694true, Black: 292#(= |#race~data~0| 0), 283#true, Black: 297#(= |threadThread1of2ForFork0_#t~nondet2| |#race~threads_alive~0|), 300#true, 226#L713-1true, 295#true]) [2024-10-31 22:18:28,759 INFO L294 olderBase$Statistics]: this new event has 204 ancestors and is cut-off event [2024-10-31 22:18:28,760 INFO L297 olderBase$Statistics]: existing Event has 199 ancestors and is cut-off event [2024-10-31 22:18:28,760 INFO L297 olderBase$Statistics]: existing Event has 199 ancestors and is cut-off event [2024-10-31 22:18:28,760 INFO L297 olderBase$Statistics]: existing Event has 204 ancestors and is cut-off event [2024-10-31 22:18:30,308 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([888] L699-->L699-1: Formula: (= 0 |v_#race~threads_alive~0_4|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_4|} AuxVars[] AssignedVars[#race~threads_alive~0][318], [281#true, Black: 285#true, Black: 292#(= |#race~data~0| 0), 16#L713-2true, 283#true, 80#L699-1true, 300#true, Black: 297#(= |threadThread1of2ForFork0_#t~nondet2| |#race~threads_alive~0|), 71#L692-7true, 295#true]) [2024-10-31 22:18:30,309 INFO L294 olderBase$Statistics]: this new event has 227 ancestors and is cut-off event [2024-10-31 22:18:30,309 INFO L297 olderBase$Statistics]: existing Event has 222 ancestors and is cut-off event [2024-10-31 22:18:30,309 INFO L297 olderBase$Statistics]: existing Event has 227 ancestors and is cut-off event [2024-10-31 22:18:30,309 INFO L297 olderBase$Statistics]: existing Event has 222 ancestors and is cut-off event [2024-10-31 22:18:30,395 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([748] L714-6-->L713-1: Formula: (= 0 |v_#race~threads_alive~0_1|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_1|} AuxVars[] AssignedVars[#race~threads_alive~0][234], [Black: 285#true, 281#true, Black: 292#(= |#race~data~0| 0), 283#true, 80#L699-1true, Black: 297#(= |threadThread1of2ForFork0_#t~nondet2| |#race~threads_alive~0|), 300#true, 71#L692-7true, 226#L713-1true, 295#true]) [2024-10-31 22:18:30,395 INFO L294 olderBase$Statistics]: this new event has 226 ancestors and is cut-off event [2024-10-31 22:18:30,395 INFO L297 olderBase$Statistics]: existing Event has 226 ancestors and is cut-off event [2024-10-31 22:18:30,395 INFO L297 olderBase$Statistics]: existing Event has 226 ancestors and is cut-off event [2024-10-31 22:18:30,395 INFO L297 olderBase$Statistics]: existing Event has 221 ancestors and is cut-off event [2024-10-31 22:18:30,396 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([748] L714-6-->L713-1: Formula: (= 0 |v_#race~threads_alive~0_1|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_1|} AuxVars[] AssignedVars[#race~threads_alive~0][234], [Black: 285#true, 253#L699-2true, 281#true, Black: 292#(= |#race~data~0| 0), 283#true, Black: 297#(= |threadThread1of2ForFork0_#t~nondet2| |#race~threads_alive~0|), 300#true, 71#L692-7true, 226#L713-1true, 295#true]) [2024-10-31 22:18:30,397 INFO L294 olderBase$Statistics]: this new event has 227 ancestors and is cut-off event [2024-10-31 22:18:30,397 INFO L297 olderBase$Statistics]: existing Event has 222 ancestors and is cut-off event [2024-10-31 22:18:30,397 INFO L297 olderBase$Statistics]: existing Event has 222 ancestors and is cut-off event [2024-10-31 22:18:30,397 INFO L297 olderBase$Statistics]: existing Event has 227 ancestors and is cut-off event [2024-10-31 22:18:30,398 INFO L292 olderBase$Statistics]: inserting event number 5 for the transition-marking pair ([748] L714-6-->L713-1: Formula: (= 0 |v_#race~threads_alive~0_1|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_1|} AuxVars[] AssignedVars[#race~threads_alive~0][234], [253#L699-2true, Black: 285#true, 281#true, Black: 292#(= |#race~data~0| 0), 283#true, Black: 297#(= |threadThread1of2ForFork0_#t~nondet2| |#race~threads_alive~0|), 300#true, 71#L692-7true, 226#L713-1true, 295#true]) [2024-10-31 22:18:30,398 INFO L294 olderBase$Statistics]: this new event has 227 ancestors and is cut-off event [2024-10-31 22:18:30,398 INFO L297 olderBase$Statistics]: existing Event has 222 ancestors and is cut-off event [2024-10-31 22:18:30,398 INFO L297 olderBase$Statistics]: existing Event has 222 ancestors and is cut-off event [2024-10-31 22:18:30,398 INFO L297 olderBase$Statistics]: existing Event has 227 ancestors and is cut-off event [2024-10-31 22:18:30,398 INFO L297 olderBase$Statistics]: existing Event has 227 ancestors and is cut-off event [2024-10-31 22:18:30,510 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([748] L714-6-->L713-1: Formula: (= 0 |v_#race~threads_alive~0_1|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_1|} AuxVars[] AssignedVars[#race~threads_alive~0][176], [281#true, Black: 285#true, 253#L699-2true, Black: 292#(= |#race~data~0| 0), 14#threadErr1ASSERT_VIOLATIONDATA_RACEtrue, 283#true, 300#true, Black: 297#(= |threadThread1of2ForFork0_#t~nondet2| |#race~threads_alive~0|), 226#L713-1true, 295#true]) [2024-10-31 22:18:30,510 INFO L294 olderBase$Statistics]: this new event has 227 ancestors and is cut-off event [2024-10-31 22:18:30,510 INFO L297 olderBase$Statistics]: existing Event has 227 ancestors and is cut-off event [2024-10-31 22:18:30,511 INFO L297 olderBase$Statistics]: existing Event has 227 ancestors and is cut-off event [2024-10-31 22:18:30,511 INFO L297 olderBase$Statistics]: existing Event has 222 ancestors and is cut-off event [2024-10-31 22:18:30,548 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([748] L714-6-->L713-1: Formula: (= 0 |v_#race~threads_alive~0_1|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_1|} AuxVars[] AssignedVars[#race~threads_alive~0][176], [253#L699-2true, Black: 285#true, 281#true, 227#L694true, Black: 292#(= |#race~data~0| 0), 283#true, 300#true, Black: 297#(= |threadThread1of2ForFork0_#t~nondet2| |#race~threads_alive~0|), 226#L713-1true, 295#true]) [2024-10-31 22:18:30,548 INFO L294 olderBase$Statistics]: this new event has 229 ancestors and is cut-off event [2024-10-31 22:18:30,548 INFO L297 olderBase$Statistics]: existing Event has 224 ancestors and is cut-off event [2024-10-31 22:18:30,548 INFO L297 olderBase$Statistics]: existing Event has 224 ancestors and is cut-off event [2024-10-31 22:18:30,548 INFO L297 olderBase$Statistics]: existing Event has 229 ancestors and is cut-off event [2024-10-31 22:18:32,324 INFO L124 PetriNetUnfolderBase]: 5599/20226 cut-off events. [2024-10-31 22:18:32,324 INFO L125 PetriNetUnfolderBase]: For 3183/3543 co-relation queries the response was YES. [2024-10-31 22:18:32,372 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34706 conditions, 20226 events. 5599/20226 cut-off events. For 3183/3543 co-relation queries the response was YES. Maximal size of possible extension queue 549. Compared 239451 event pairs, 3099 based on Foata normal form. 21/18179 useless extension candidates. Maximal degree in co-relation 33125. Up to 6066 conditions per place. [2024-10-31 22:18:32,445 INFO L140 encePairwiseOnDemand]: 275/281 looper letters, 36 selfloop transitions, 7 changer transitions 0/322 dead transitions. [2024-10-31 22:18:32,445 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 291 places, 322 transitions, 935 flow [2024-10-31 22:18:32,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:18:32,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:18:32,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 800 transitions. [2024-10-31 22:18:32,448 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9489916963226572 [2024-10-31 22:18:32,448 INFO L175 Difference]: Start difference. First operand has 289 places, 306 transitions, 806 flow. Second operand 3 states and 800 transitions. [2024-10-31 22:18:32,448 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 291 places, 322 transitions, 935 flow [2024-10-31 22:18:32,462 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 289 places, 322 transitions, 907 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:18:32,467 INFO L231 Difference]: Finished difference. Result has 291 places, 311 transitions, 834 flow [2024-10-31 22:18:32,468 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=281, PETRI_DIFFERENCE_MINUEND_FLOW=778, PETRI_DIFFERENCE_MINUEND_PLACES=287, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=306, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=299, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=834, PETRI_PLACES=291, PETRI_TRANSITIONS=311} [2024-10-31 22:18:32,468 INFO L277 CegarLoopForPetriNet]: 282 programPoint places, 9 predicate places. [2024-10-31 22:18:32,469 INFO L471 AbstractCegarLoop]: Abstraction has has 291 places, 311 transitions, 834 flow [2024-10-31 22:18:32,470 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 255.33333333333334) internal successors, (766), 3 states have internal predecessors, (766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:18:32,470 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:18:32,470 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:18:32,470 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-31 22:18:32,471 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 15 more)] === [2024-10-31 22:18:32,471 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:18:32,471 INFO L85 PathProgramCache]: Analyzing trace with hash 577156445, now seen corresponding path program 1 times [2024-10-31 22:18:32,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:18:32,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322552302] [2024-10-31 22:18:32,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:18:32,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:18:32,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:18:32,756 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-31 22:18:32,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:18:32,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322552302] [2024-10-31 22:18:32,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322552302] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:18:32,759 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:18:32,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:18:32,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55473091] [2024-10-31 22:18:32,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:18:32,760 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:18:32,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:18:32,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:18:32,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:18:32,786 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 259 out of 281 [2024-10-31 22:18:32,788 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 291 places, 311 transitions, 834 flow. Second operand has 3 states, 3 states have (on average 260.3333333333333) internal successors, (781), 3 states have internal predecessors, (781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:18:32,789 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:18:32,789 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 259 of 281 [2024-10-31 22:18:32,789 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:18:34,944 INFO L124 PetriNetUnfolderBase]: 1939/10763 cut-off events. [2024-10-31 22:18:34,944 INFO L125 PetriNetUnfolderBase]: For 1679/1960 co-relation queries the response was YES. [2024-10-31 22:18:34,971 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17785 conditions, 10763 events. 1939/10763 cut-off events. For 1679/1960 co-relation queries the response was YES. Maximal size of possible extension queue 360. Compared 127566 event pairs, 546 based on Foata normal form. 260/10107 useless extension candidates. Maximal degree in co-relation 16781. Up to 1517 conditions per place. [2024-10-31 22:18:34,994 INFO L140 encePairwiseOnDemand]: 267/281 looper letters, 16 selfloop transitions, 14 changer transitions 0/318 dead transitions. [2024-10-31 22:18:34,994 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 293 places, 318 transitions, 897 flow [2024-10-31 22:18:34,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:18:34,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:18:34,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 813 transitions. [2024-10-31 22:18:34,997 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9644128113879004 [2024-10-31 22:18:34,997 INFO L175 Difference]: Start difference. First operand has 291 places, 311 transitions, 834 flow. Second operand 3 states and 813 transitions. [2024-10-31 22:18:34,997 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 293 places, 318 transitions, 897 flow [2024-10-31 22:18:35,008 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 291 places, 318 transitions, 883 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:18:35,013 INFO L231 Difference]: Finished difference. Result has 292 places, 315 transitions, 870 flow [2024-10-31 22:18:35,014 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=281, PETRI_DIFFERENCE_MINUEND_FLOW=796, PETRI_DIFFERENCE_MINUEND_PLACES=289, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=307, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=293, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=870, PETRI_PLACES=292, PETRI_TRANSITIONS=315} [2024-10-31 22:18:35,015 INFO L277 CegarLoopForPetriNet]: 282 programPoint places, 10 predicate places. [2024-10-31 22:18:35,015 INFO L471 AbstractCegarLoop]: Abstraction has has 292 places, 315 transitions, 870 flow [2024-10-31 22:18:35,016 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 260.3333333333333) internal successors, (781), 3 states have internal predecessors, (781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:18:35,016 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:18:35,017 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:18:35,017 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-31 22:18:35,017 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting threadErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 15 more)] === [2024-10-31 22:18:35,018 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:18:35,018 INFO L85 PathProgramCache]: Analyzing trace with hash -969104378, now seen corresponding path program 1 times [2024-10-31 22:18:35,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:18:35,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077626374] [2024-10-31 22:18:35,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:18:35,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:18:35,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:18:35,121 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-31 22:18:35,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:18:35,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1077626374] [2024-10-31 22:18:35,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1077626374] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:18:35,122 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:18:35,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:18:35,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401991223] [2024-10-31 22:18:35,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:18:35,123 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:18:35,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:18:35,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:18:35,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:18:35,187 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 247 out of 281 [2024-10-31 22:18:35,189 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 292 places, 315 transitions, 870 flow. Second operand has 3 states, 3 states have (on average 249.33333333333334) internal successors, (748), 3 states have internal predecessors, (748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:18:35,189 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:18:35,189 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 247 of 281 [2024-10-31 22:18:35,189 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand