./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-race-challenges/thread-join-array-dynamic.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_140527c8-8106-4f08-860d-a429ab78858d/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_140527c8-8106-4f08-860d-a429ab78858d/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_140527c8-8106-4f08-860d-a429ab78858d/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_140527c8-8106-4f08-860d-a429ab78858d/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-race-challenges/thread-join-array-dynamic.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_140527c8-8106-4f08-860d-a429ab78858d/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_140527c8-8106-4f08-860d-a429ab78858d/bin/uautomizer-verify-BQ2R08f2Ya --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 e281184c6e6629633efbcea3a2283a3a54dcfd040e15fa389b71c86937ccbf2b --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 06:43:47,249 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 06:43:47,315 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_140527c8-8106-4f08-860d-a429ab78858d/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-29 06:43:47,319 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 06:43:47,320 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 06:43:47,343 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 06:43:47,344 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 06:43:47,344 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 06:43:47,345 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 06:43:47,346 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 06:43:47,346 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 06:43:47,347 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 06:43:47,347 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 06:43:47,348 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 06:43:47,348 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 06:43:47,349 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 06:43:47,349 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 06:43:47,350 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 06:43:47,350 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 06:43:47,351 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 06:43:47,351 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 06:43:47,352 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 06:43:47,352 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-29 06:43:47,353 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 06:43:47,353 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 06:43:47,353 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 06:43:47,354 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 06:43:47,354 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 06:43:47,355 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 06:43:47,355 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 06:43:47,356 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 06:43:47,356 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 06:43:47,356 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 06:43:47,356 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 06:43:47,357 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 06:43:47,357 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 06:43:47,357 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 06:43:47,357 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 06:43:47,357 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 06:43:47,358 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 06:43:47,358 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 06:43:47,358 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_140527c8-8106-4f08-860d-a429ab78858d/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_140527c8-8106-4f08-860d-a429ab78858d/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e281184c6e6629633efbcea3a2283a3a54dcfd040e15fa389b71c86937ccbf2b [2023-11-29 06:43:47,558 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 06:43:47,578 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 06:43:47,580 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 06:43:47,581 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 06:43:47,582 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 06:43:47,583 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_140527c8-8106-4f08-860d-a429ab78858d/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/pthread-race-challenges/thread-join-array-dynamic.i [2023-11-29 06:43:50,384 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 06:43:50,656 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 06:43:50,656 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_140527c8-8106-4f08-860d-a429ab78858d/sv-benchmarks/c/pthread-race-challenges/thread-join-array-dynamic.i [2023-11-29 06:43:50,674 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_140527c8-8106-4f08-860d-a429ab78858d/bin/uautomizer-verify-BQ2R08f2Ya/data/ca004a254/a3932fe9cc034221a562e4409fa6ed14/FLAG407994199 [2023-11-29 06:43:50,689 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_140527c8-8106-4f08-860d-a429ab78858d/bin/uautomizer-verify-BQ2R08f2Ya/data/ca004a254/a3932fe9cc034221a562e4409fa6ed14 [2023-11-29 06:43:50,691 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 06:43:50,693 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 06:43:50,694 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 06:43:50,694 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 06:43:50,699 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 06:43:50,700 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:43:50" (1/1) ... [2023-11-29 06:43:50,701 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6308caa8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:43:50, skipping insertion in model container [2023-11-29 06:43:50,701 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:43:50" (1/1) ... [2023-11-29 06:43:50,751 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 06:43:51,238 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 06:43:51,251 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 06:43:51,296 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 06:43:51,367 INFO L206 MainTranslator]: Completed translation [2023-11-29 06:43:51,367 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:43:51 WrapperNode [2023-11-29 06:43:51,368 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 06:43:51,369 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 06:43:51,369 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 06:43:51,369 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 06:43:51,377 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:43:51" (1/1) ... [2023-11-29 06:43:51,394 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:43:51" (1/1) ... [2023-11-29 06:43:51,419 INFO L138 Inliner]: procedures = 269, calls = 23, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 86 [2023-11-29 06:43:51,420 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 06:43:51,420 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 06:43:51,421 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 06:43:51,421 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 06:43:51,434 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:43:51" (1/1) ... [2023-11-29 06:43:51,435 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:43:51" (1/1) ... [2023-11-29 06:43:51,439 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:43:51" (1/1) ... [2023-11-29 06:43:51,440 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:43:51" (1/1) ... [2023-11-29 06:43:51,449 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:43:51" (1/1) ... [2023-11-29 06:43:51,453 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:43:51" (1/1) ... [2023-11-29 06:43:51,455 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:43:51" (1/1) ... [2023-11-29 06:43:51,456 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:43:51" (1/1) ... [2023-11-29 06:43:51,459 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 06:43:51,460 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 06:43:51,460 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 06:43:51,460 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 06:43:51,461 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:43:51" (1/1) ... [2023-11-29 06:43:51,466 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 06:43:51,475 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_140527c8-8106-4f08-860d-a429ab78858d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:43:51,488 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_140527c8-8106-4f08-860d-a429ab78858d/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 06:43:51,492 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_140527c8-8106-4f08-860d-a429ab78858d/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 06:43:51,519 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 06:43:51,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-29 06:43:51,519 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 06:43:51,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-29 06:43:51,520 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-29 06:43:51,520 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-29 06:43:51,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-29 06:43:51,520 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-29 06:43:51,520 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-29 06:43:51,521 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 06:43:51,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-29 06:43:51,521 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2023-11-29 06:43:51,521 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2023-11-29 06:43:51,521 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 06:43:51,521 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 06:43:51,523 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-29 06:43:51,662 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 06:43:51,664 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 06:43:51,874 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 06:43:51,909 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 06:43:51,909 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-29 06:43:51,911 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:43:51 BoogieIcfgContainer [2023-11-29 06:43:51,911 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 06:43:51,914 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 06:43:51,914 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 06:43:51,917 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 06:43:51,917 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 06:43:50" (1/3) ... [2023-11-29 06:43:51,918 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a6f95d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:43:51, skipping insertion in model container [2023-11-29 06:43:51,918 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:43:51" (2/3) ... [2023-11-29 06:43:51,919 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a6f95d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:43:51, skipping insertion in model container [2023-11-29 06:43:51,919 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:43:51" (3/3) ... [2023-11-29 06:43:51,920 INFO L112 eAbstractionObserver]: Analyzing ICFG thread-join-array-dynamic.i [2023-11-29 06:43:51,931 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-29 06:43:51,952 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 06:43:51,952 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-11-29 06:43:51,952 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-29 06:43:52,003 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-11-29 06:43:52,041 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 109 places, 110 transitions, 227 flow [2023-11-29 06:43:52,099 INFO L124 PetriNetUnfolderBase]: 6/161 cut-off events. [2023-11-29 06:43:52,099 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-29 06:43:52,103 INFO L83 FinitePrefix]: Finished finitePrefix Result has 166 conditions, 161 events. 6/161 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 327 event pairs, 0 based on Foata normal form. 0/141 useless extension candidates. Maximal degree in co-relation 80. Up to 4 conditions per place. [2023-11-29 06:43:52,103 INFO L82 GeneralOperation]: Start removeDead. Operand has 109 places, 110 transitions, 227 flow [2023-11-29 06:43:52,108 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 109 places, 110 transitions, 227 flow [2023-11-29 06:43:52,115 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 06:43:52,121 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=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;@5f1ae0b7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 06:43:52,121 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-11-29 06:43:52,135 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-29 06:43:52,136 INFO L124 PetriNetUnfolderBase]: 3/52 cut-off events. [2023-11-29 06:43:52,136 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-29 06:43:52,136 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:43:52,137 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:43:52,137 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-11-29 06:43:52,141 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:43:52,142 INFO L85 PathProgramCache]: Analyzing trace with hash 1908849735, now seen corresponding path program 1 times [2023-11-29 06:43:52,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:43:52,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306331796] [2023-11-29 06:43:52,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:43:52,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:43:52,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:43:52,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:43:52,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:43:52,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306331796] [2023-11-29 06:43:52,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1306331796] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:43:52,835 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:43:52,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 06:43:52,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164591931] [2023-11-29 06:43:52,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:43:52,846 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 06:43:52,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:43:52,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 06:43:52,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 06:43:53,086 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 110 [2023-11-29 06:43:53,090 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 110 transitions, 227 flow. Second operand has 6 states, 6 states have (on average 82.16666666666667) internal successors, (493), 6 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:43:53,091 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 06:43:53,091 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 110 [2023-11-29 06:43:53,092 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 06:43:53,228 INFO L124 PetriNetUnfolderBase]: 36/306 cut-off events. [2023-11-29 06:43:53,228 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-11-29 06:43:53,229 INFO L83 FinitePrefix]: Finished finitePrefix Result has 428 conditions, 306 events. 36/306 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1242 event pairs, 30 based on Foata normal form. 8/281 useless extension candidates. Maximal degree in co-relation 296. Up to 93 conditions per place. [2023-11-29 06:43:53,232 INFO L140 encePairwiseOnDemand]: 91/110 looper letters, 23 selfloop transitions, 13 changer transitions 2/118 dead transitions. [2023-11-29 06:43:53,232 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 118 transitions, 317 flow [2023-11-29 06:43:53,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 06:43:53,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 06:43:53,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 531 transitions. [2023-11-29 06:43:53,247 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8045454545454546 [2023-11-29 06:43:53,248 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 531 transitions. [2023-11-29 06:43:53,249 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 531 transitions. [2023-11-29 06:43:53,251 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:43:53,254 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 531 transitions. [2023-11-29 06:43:53,259 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 88.5) internal successors, (531), 6 states have internal predecessors, (531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:43:53,265 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 110.0) internal successors, (770), 7 states have internal predecessors, (770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:43:53,266 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 110.0) internal successors, (770), 7 states have internal predecessors, (770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:43:53,268 INFO L175 Difference]: Start difference. First operand has 109 places, 110 transitions, 227 flow. Second operand 6 states and 531 transitions. [2023-11-29 06:43:53,269 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 118 transitions, 317 flow [2023-11-29 06:43:53,273 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 118 transitions, 317 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-29 06:43:53,276 INFO L231 Difference]: Finished difference. Result has 115 places, 115 transitions, 309 flow [2023-11-29 06:43:53,278 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=110, PETRI_DIFFERENCE_MINUEND_FLOW=215, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=309, PETRI_PLACES=115, PETRI_TRANSITIONS=115} [2023-11-29 06:43:53,281 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, 6 predicate places. [2023-11-29 06:43:53,281 INFO L495 AbstractCegarLoop]: Abstraction has has 115 places, 115 transitions, 309 flow [2023-11-29 06:43:53,282 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 82.16666666666667) internal successors, (493), 6 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:43:53,282 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:43:53,282 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:43:53,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 06:43:53,283 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-11-29 06:43:53,284 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:43:53,284 INFO L85 PathProgramCache]: Analyzing trace with hash -283418711, now seen corresponding path program 1 times [2023-11-29 06:43:53,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:43:53,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297067934] [2023-11-29 06:43:53,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:43:53,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:43:53,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:43:53,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:43:53,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:43:53,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297067934] [2023-11-29 06:43:53,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297067934] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:43:53,344 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:43:53,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 06:43:53,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116182481] [2023-11-29 06:43:53,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:43:53,346 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 06:43:53,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:43:53,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 06:43:53,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 06:43:53,355 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 110 [2023-11-29 06:43:53,356 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 115 transitions, 309 flow. Second operand has 3 states, 3 states have (on average 99.66666666666667) internal successors, (299), 3 states have internal predecessors, (299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:43:53,356 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 06:43:53,356 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 110 [2023-11-29 06:43:53,356 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 06:43:53,399 INFO L124 PetriNetUnfolderBase]: 9/211 cut-off events. [2023-11-29 06:43:53,399 INFO L125 PetriNetUnfolderBase]: For 15/18 co-relation queries the response was YES. [2023-11-29 06:43:53,400 INFO L83 FinitePrefix]: Finished finitePrefix Result has 298 conditions, 211 events. 9/211 cut-off events. For 15/18 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 529 event pairs, 1 based on Foata normal form. 0/195 useless extension candidates. Maximal degree in co-relation 174. Up to 16 conditions per place. [2023-11-29 06:43:53,401 INFO L140 encePairwiseOnDemand]: 106/110 looper letters, 8 selfloop transitions, 3 changer transitions 5/119 dead transitions. [2023-11-29 06:43:53,401 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 119 transitions, 341 flow [2023-11-29 06:43:53,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 06:43:53,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 06:43:53,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 310 transitions. [2023-11-29 06:43:53,403 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9393939393939394 [2023-11-29 06:43:53,403 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 310 transitions. [2023-11-29 06:43:53,403 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 310 transitions. [2023-11-29 06:43:53,424 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:43:53,424 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 310 transitions. [2023-11-29 06:43:53,426 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 103.33333333333333) internal successors, (310), 3 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:43:53,427 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 110.0) internal successors, (440), 4 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:43:53,428 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 110.0) internal successors, (440), 4 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:43:53,428 INFO L175 Difference]: Start difference. First operand has 115 places, 115 transitions, 309 flow. Second operand 3 states and 310 transitions. [2023-11-29 06:43:53,428 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 119 transitions, 341 flow [2023-11-29 06:43:53,431 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 119 transitions, 337 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-29 06:43:53,434 INFO L231 Difference]: Finished difference. Result has 117 places, 113 transitions, 305 flow [2023-11-29 06:43:53,435 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=110, PETRI_DIFFERENCE_MINUEND_FLOW=305, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=305, PETRI_PLACES=117, PETRI_TRANSITIONS=113} [2023-11-29 06:43:53,436 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, 8 predicate places. [2023-11-29 06:43:53,436 INFO L495 AbstractCegarLoop]: Abstraction has has 117 places, 113 transitions, 305 flow [2023-11-29 06:43:53,436 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 99.66666666666667) internal successors, (299), 3 states have internal predecessors, (299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:43:53,437 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:43:53,437 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:43:53,437 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 06:43:53,437 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-11-29 06:43:53,438 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:43:53,438 INFO L85 PathProgramCache]: Analyzing trace with hash 319474235, now seen corresponding path program 1 times [2023-11-29 06:43:53,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:43:53,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851018871] [2023-11-29 06:43:53,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:43:53,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:43:53,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:43:53,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:43:53,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:43:53,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851018871] [2023-11-29 06:43:53,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [851018871] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:43:53,567 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:43:53,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 06:43:53,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155905194] [2023-11-29 06:43:53,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:43:53,568 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 06:43:53,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:43:53,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 06:43:53,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 06:43:53,639 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 110 [2023-11-29 06:43:53,640 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 113 transitions, 305 flow. Second operand has 5 states, 5 states have (on average 93.4) internal successors, (467), 5 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:43:53,640 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 06:43:53,640 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 110 [2023-11-29 06:43:53,640 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 06:43:53,723 INFO L124 PetriNetUnfolderBase]: 16/291 cut-off events. [2023-11-29 06:43:53,723 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2023-11-29 06:43:53,725 INFO L83 FinitePrefix]: Finished finitePrefix Result has 437 conditions, 291 events. 16/291 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1032 event pairs, 1 based on Foata normal form. 1/279 useless extension candidates. Maximal degree in co-relation 325. Up to 48 conditions per place. [2023-11-29 06:43:53,726 INFO L140 encePairwiseOnDemand]: 103/110 looper letters, 15 selfloop transitions, 2 changer transitions 4/115 dead transitions. [2023-11-29 06:43:53,726 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 115 transitions, 337 flow [2023-11-29 06:43:53,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 06:43:53,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 06:43:53,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 574 transitions. [2023-11-29 06:43:53,730 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8696969696969697 [2023-11-29 06:43:53,730 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 574 transitions. [2023-11-29 06:43:53,730 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 574 transitions. [2023-11-29 06:43:53,730 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:43:53,731 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 574 transitions. [2023-11-29 06:43:53,733 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 95.66666666666667) internal successors, (574), 6 states have internal predecessors, (574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:43:53,736 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 110.0) internal successors, (770), 7 states have internal predecessors, (770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:43:53,736 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 110.0) internal successors, (770), 7 states have internal predecessors, (770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:43:53,737 INFO L175 Difference]: Start difference. First operand has 117 places, 113 transitions, 305 flow. Second operand 6 states and 574 transitions. [2023-11-29 06:43:53,737 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 115 transitions, 337 flow [2023-11-29 06:43:53,741 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 115 transitions, 317 flow, removed 7 selfloop flow, removed 2 redundant places. [2023-11-29 06:43:53,744 INFO L231 Difference]: Finished difference. Result has 124 places, 109 transitions, 279 flow [2023-11-29 06:43:53,745 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=110, PETRI_DIFFERENCE_MINUEND_FLOW=263, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=279, PETRI_PLACES=124, PETRI_TRANSITIONS=109} [2023-11-29 06:43:53,745 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, 15 predicate places. [2023-11-29 06:43:53,746 INFO L495 AbstractCegarLoop]: Abstraction has has 124 places, 109 transitions, 279 flow [2023-11-29 06:43:53,746 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 93.4) internal successors, (467), 5 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:43:53,746 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:43:53,747 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:43:53,747 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-29 06:43:53,747 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-11-29 06:43:53,748 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:43:53,748 INFO L85 PathProgramCache]: Analyzing trace with hash -461761232, now seen corresponding path program 1 times [2023-11-29 06:43:53,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:43:53,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993910754] [2023-11-29 06:43:53,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:43:53,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:43:53,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:43:53,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:43:53,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:43:53,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993910754] [2023-11-29 06:43:53,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [993910754] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:43:53,795 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:43:53,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 06:43:53,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640056191] [2023-11-29 06:43:53,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:43:53,796 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 06:43:53,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:43:53,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 06:43:53,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 06:43:53,808 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 110 [2023-11-29 06:43:53,808 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 109 transitions, 279 flow. Second operand has 3 states, 3 states have (on average 98.66666666666667) internal successors, (296), 3 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:43:53,808 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 06:43:53,809 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 110 [2023-11-29 06:43:53,809 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 06:43:53,854 INFO L124 PetriNetUnfolderBase]: 5/209 cut-off events. [2023-11-29 06:43:53,855 INFO L125 PetriNetUnfolderBase]: For 20/33 co-relation queries the response was YES. [2023-11-29 06:43:53,855 INFO L83 FinitePrefix]: Finished finitePrefix Result has 303 conditions, 209 events. 5/209 cut-off events. For 20/33 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 544 event pairs, 3 based on Foata normal form. 1/200 useless extension candidates. Maximal degree in co-relation 243. Up to 25 conditions per place. [2023-11-29 06:43:53,856 INFO L140 encePairwiseOnDemand]: 105/110 looper letters, 8 selfloop transitions, 4 changer transitions 3/112 dead transitions. [2023-11-29 06:43:53,856 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 112 transitions, 315 flow [2023-11-29 06:43:53,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 06:43:53,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 06:43:53,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 305 transitions. [2023-11-29 06:43:53,858 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9242424242424242 [2023-11-29 06:43:53,858 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 305 transitions. [2023-11-29 06:43:53,858 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 305 transitions. [2023-11-29 06:43:53,859 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:43:53,859 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 305 transitions. [2023-11-29 06:43:53,860 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 101.66666666666667) internal successors, (305), 3 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:43:53,861 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 110.0) internal successors, (440), 4 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:43:53,862 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 110.0) internal successors, (440), 4 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:43:53,862 INFO L175 Difference]: Start difference. First operand has 124 places, 109 transitions, 279 flow. Second operand 3 states and 305 transitions. [2023-11-29 06:43:53,862 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 112 transitions, 315 flow [2023-11-29 06:43:53,864 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 112 transitions, 301 flow, removed 5 selfloop flow, removed 5 redundant places. [2023-11-29 06:43:53,866 INFO L231 Difference]: Finished difference. Result has 120 places, 109 transitions, 287 flow [2023-11-29 06:43:53,867 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=110, PETRI_DIFFERENCE_MINUEND_FLOW=265, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=287, PETRI_PLACES=120, PETRI_TRANSITIONS=109} [2023-11-29 06:43:53,868 INFO L281 CegarLoopForPetriNet]: 109 programPoint places, 11 predicate places. [2023-11-29 06:43:53,868 INFO L495 AbstractCegarLoop]: Abstraction has has 120 places, 109 transitions, 287 flow [2023-11-29 06:43:53,868 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 98.66666666666667) internal successors, (296), 3 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:43:53,869 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:43:53,869 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 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] [2023-11-29 06:43:53,869 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-29 06:43:53,869 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-11-29 06:43:53,870 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:43:53,870 INFO L85 PathProgramCache]: Analyzing trace with hash -1834583740, now seen corresponding path program 1 times [2023-11-29 06:43:53,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:43:53,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232570734] [2023-11-29 06:43:53,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:43:53,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:43:53,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 06:43:53,903 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 06:43:53,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 06:43:53,946 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 06:43:53,946 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-29 06:43:53,949 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 8 remaining) [2023-11-29 06:43:53,950 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (6 of 8 remaining) [2023-11-29 06:43:53,950 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (5 of 8 remaining) [2023-11-29 06:43:53,951 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (4 of 8 remaining) [2023-11-29 06:43:53,951 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (3 of 8 remaining) [2023-11-29 06:43:53,951 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (2 of 8 remaining) [2023-11-29 06:43:53,951 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 8 remaining) [2023-11-29 06:43:53,951 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 8 remaining) [2023-11-29 06:43:53,951 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-29 06:43:53,952 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-11-29 06:43:53,954 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-29 06:43:53,955 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-11-29 06:43:53,978 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-29 06:43:53,982 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 128 places, 128 transitions, 272 flow [2023-11-29 06:43:54,009 INFO L124 PetriNetUnfolderBase]: 11/284 cut-off events. [2023-11-29 06:43:54,009 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-11-29 06:43:54,010 INFO L83 FinitePrefix]: Finished finitePrefix Result has 296 conditions, 284 events. 11/284 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 677 event pairs, 0 based on Foata normal form. 0/248 useless extension candidates. Maximal degree in co-relation 163. Up to 8 conditions per place. [2023-11-29 06:43:54,010 INFO L82 GeneralOperation]: Start removeDead. Operand has 128 places, 128 transitions, 272 flow [2023-11-29 06:43:54,012 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 128 places, 128 transitions, 272 flow [2023-11-29 06:43:54,014 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 06:43:54,015 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=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;@5f1ae0b7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 06:43:54,015 INFO L358 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2023-11-29 06:43:54,020 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-29 06:43:54,020 INFO L124 PetriNetUnfolderBase]: 3/52 cut-off events. [2023-11-29 06:43:54,020 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-29 06:43:54,020 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:43:54,020 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:43:54,020 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-11-29 06:43:54,021 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:43:54,021 INFO L85 PathProgramCache]: Analyzing trace with hash -979116985, now seen corresponding path program 1 times [2023-11-29 06:43:54,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:43:54,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622743681] [2023-11-29 06:43:54,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:43:54,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:43:54,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:43:54,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:43:54,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:43:54,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622743681] [2023-11-29 06:43:54,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [622743681] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:43:54,252 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:43:54,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 06:43:54,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38461517] [2023-11-29 06:43:54,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:43:54,252 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 06:43:54,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:43:54,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 06:43:54,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 06:43:54,443 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 128 [2023-11-29 06:43:54,444 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 128 transitions, 272 flow. Second operand has 6 states, 6 states have (on average 96.16666666666667) internal successors, (577), 6 states have internal predecessors, (577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:43:54,445 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 06:43:54,445 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 128 [2023-11-29 06:43:54,445 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 06:43:54,678 INFO L124 PetriNetUnfolderBase]: 280/1695 cut-off events. [2023-11-29 06:43:54,678 INFO L125 PetriNetUnfolderBase]: For 37/37 co-relation queries the response was YES. [2023-11-29 06:43:54,683 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2281 conditions, 1695 events. 280/1695 cut-off events. For 37/37 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 13242 event pairs, 240 based on Foata normal form. 24/1588 useless extension candidates. Maximal degree in co-relation 731. Up to 488 conditions per place. [2023-11-29 06:43:54,690 INFO L140 encePairwiseOnDemand]: 109/128 looper letters, 30 selfloop transitions, 13 changer transitions 1/138 dead transitions. [2023-11-29 06:43:54,690 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 138 transitions, 378 flow [2023-11-29 06:43:54,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 06:43:54,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 06:43:54,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 621 transitions. [2023-11-29 06:43:54,693 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.80859375 [2023-11-29 06:43:54,693 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 621 transitions. [2023-11-29 06:43:54,693 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 621 transitions. [2023-11-29 06:43:54,718 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:43:54,718 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 621 transitions. [2023-11-29 06:43:54,720 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 103.5) internal successors, (621), 6 states have internal predecessors, (621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:43:54,722 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 128.0) internal successors, (896), 7 states have internal predecessors, (896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:43:54,723 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 128.0) internal successors, (896), 7 states have internal predecessors, (896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:43:54,723 INFO L175 Difference]: Start difference. First operand has 128 places, 128 transitions, 272 flow. Second operand 6 states and 621 transitions. [2023-11-29 06:43:54,723 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 138 transitions, 378 flow [2023-11-29 06:43:54,725 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 138 transitions, 378 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-29 06:43:54,727 INFO L231 Difference]: Finished difference. Result has 134 places, 133 transitions, 354 flow [2023-11-29 06:43:54,728 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=260, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=354, PETRI_PLACES=134, PETRI_TRANSITIONS=133} [2023-11-29 06:43:54,729 INFO L281 CegarLoopForPetriNet]: 128 programPoint places, 6 predicate places. [2023-11-29 06:43:54,729 INFO L495 AbstractCegarLoop]: Abstraction has has 134 places, 133 transitions, 354 flow [2023-11-29 06:43:54,729 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 96.16666666666667) internal successors, (577), 6 states have internal predecessors, (577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:43:54,729 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:43:54,729 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:43:54,730 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-29 06:43:54,730 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-11-29 06:43:54,730 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:43:54,730 INFO L85 PathProgramCache]: Analyzing trace with hash -766201943, now seen corresponding path program 1 times [2023-11-29 06:43:54,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:43:54,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855632273] [2023-11-29 06:43:54,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:43:54,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:43:54,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:43:54,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:43:54,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:43:54,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855632273] [2023-11-29 06:43:54,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855632273] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:43:54,768 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:43:54,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 06:43:54,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018981098] [2023-11-29 06:43:54,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:43:54,769 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 06:43:54,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:43:54,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 06:43:54,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 06:43:54,780 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 128 [2023-11-29 06:43:54,781 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 133 transitions, 354 flow. Second operand has 3 states, 3 states have (on average 112.66666666666667) internal successors, (338), 3 states have internal predecessors, (338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:43:54,781 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 06:43:54,781 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 128 [2023-11-29 06:43:54,781 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 06:43:54,949 INFO L124 PetriNetUnfolderBase]: 120/888 cut-off events. [2023-11-29 06:43:54,949 INFO L125 PetriNetUnfolderBase]: For 88/131 co-relation queries the response was YES. [2023-11-29 06:43:54,953 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1277 conditions, 888 events. 120/888 cut-off events. For 88/131 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 5267 event pairs, 50 based on Foata normal form. 0/798 useless extension candidates. Maximal degree in co-relation 1052. Up to 139 conditions per place. [2023-11-29 06:43:54,957 INFO L140 encePairwiseOnDemand]: 123/128 looper letters, 16 selfloop transitions, 4 changer transitions 4/140 dead transitions. [2023-11-29 06:43:54,958 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 140 transitions, 408 flow [2023-11-29 06:43:54,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 06:43:54,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 06:43:54,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 357 transitions. [2023-11-29 06:43:54,960 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9296875 [2023-11-29 06:43:54,960 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 357 transitions. [2023-11-29 06:43:54,960 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 357 transitions. [2023-11-29 06:43:54,960 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:43:54,960 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 357 transitions. [2023-11-29 06:43:54,962 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:43:54,963 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 128.0) internal successors, (512), 4 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:43:54,963 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 128.0) internal successors, (512), 4 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:43:54,963 INFO L175 Difference]: Start difference. First operand has 134 places, 133 transitions, 354 flow. Second operand 3 states and 357 transitions. [2023-11-29 06:43:54,963 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 140 transitions, 408 flow [2023-11-29 06:43:54,967 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 140 transitions, 404 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-29 06:43:54,969 INFO L231 Difference]: Finished difference. Result has 136 places, 132 transitions, 358 flow [2023-11-29 06:43:54,970 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=350, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=129, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=358, PETRI_PLACES=136, PETRI_TRANSITIONS=132} [2023-11-29 06:43:54,970 INFO L281 CegarLoopForPetriNet]: 128 programPoint places, 8 predicate places. [2023-11-29 06:43:54,971 INFO L495 AbstractCegarLoop]: Abstraction has has 136 places, 132 transitions, 358 flow [2023-11-29 06:43:54,971 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 112.66666666666667) internal successors, (338), 3 states have internal predecessors, (338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:43:54,971 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:43:54,971 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:43:54,971 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-29 06:43:54,972 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-11-29 06:43:54,972 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:43:54,972 INFO L85 PathProgramCache]: Analyzing trace with hash -1761903941, now seen corresponding path program 1 times [2023-11-29 06:43:54,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:43:54,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546682420] [2023-11-29 06:43:54,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:43:54,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:43:54,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:43:55,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:43:55,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:43:55,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546682420] [2023-11-29 06:43:55,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546682420] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:43:55,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:43:55,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 06:43:55,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151294978] [2023-11-29 06:43:55,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:43:55,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 06:43:55,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:43:55,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 06:43:55,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 06:43:55,138 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 128 [2023-11-29 06:43:55,139 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 132 transitions, 358 flow. Second operand has 5 states, 5 states have (on average 107.4) internal successors, (537), 5 states have internal predecessors, (537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:43:55,139 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 06:43:55,139 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 128 [2023-11-29 06:43:55,139 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 06:43:55,376 INFO L124 PetriNetUnfolderBase]: 187/1317 cut-off events. [2023-11-29 06:43:55,376 INFO L125 PetriNetUnfolderBase]: For 68/69 co-relation queries the response was YES. [2023-11-29 06:43:55,382 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1916 conditions, 1317 events. 187/1317 cut-off events. For 68/69 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 9461 event pairs, 131 based on Foata normal form. 1/1224 useless extension candidates. Maximal degree in co-relation 1287. Up to 313 conditions per place. [2023-11-29 06:43:55,388 INFO L140 encePairwiseOnDemand]: 121/128 looper letters, 20 selfloop transitions, 2 changer transitions 4/135 dead transitions. [2023-11-29 06:43:55,388 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 135 transitions, 402 flow [2023-11-29 06:43:55,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 06:43:55,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 06:43:55,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 663 transitions. [2023-11-29 06:43:55,391 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.86328125 [2023-11-29 06:43:55,391 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 663 transitions. [2023-11-29 06:43:55,391 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 663 transitions. [2023-11-29 06:43:55,392 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:43:55,392 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 663 transitions. [2023-11-29 06:43:55,394 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 110.5) internal successors, (663), 6 states have internal predecessors, (663), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:43:55,396 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 128.0) internal successors, (896), 7 states have internal predecessors, (896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:43:55,396 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 128.0) internal successors, (896), 7 states have internal predecessors, (896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:43:55,397 INFO L175 Difference]: Start difference. First operand has 136 places, 132 transitions, 358 flow. Second operand 6 states and 663 transitions. [2023-11-29 06:43:55,397 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 135 transitions, 402 flow [2023-11-29 06:43:55,399 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 135 transitions, 380 flow, removed 7 selfloop flow, removed 2 redundant places. [2023-11-29 06:43:55,401 INFO L231 Difference]: Finished difference. Result has 143 places, 129 transitions, 334 flow [2023-11-29 06:43:55,402 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=314, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=334, PETRI_PLACES=143, PETRI_TRANSITIONS=129} [2023-11-29 06:43:55,403 INFO L281 CegarLoopForPetriNet]: 128 programPoint places, 15 predicate places. [2023-11-29 06:43:55,403 INFO L495 AbstractCegarLoop]: Abstraction has has 143 places, 129 transitions, 334 flow [2023-11-29 06:43:55,403 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 107.4) internal successors, (537), 5 states have internal predecessors, (537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:43:55,403 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:43:55,403 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:43:55,403 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-29 06:43:55,404 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-11-29 06:43:55,404 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:43:55,404 INFO L85 PathProgramCache]: Analyzing trace with hash -328091744, now seen corresponding path program 1 times [2023-11-29 06:43:55,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:43:55,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763390578] [2023-11-29 06:43:55,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:43:55,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:43:55,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:43:55,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:43:55,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:43:55,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763390578] [2023-11-29 06:43:55,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [763390578] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:43:55,446 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:43:55,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 06:43:55,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767757704] [2023-11-29 06:43:55,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:43:55,446 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 06:43:55,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:43:55,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 06:43:55,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 06:43:55,460 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 128 [2023-11-29 06:43:55,461 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 129 transitions, 334 flow. Second operand has 3 states, 3 states have (on average 111.66666666666667) internal successors, (335), 3 states have internal predecessors, (335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:43:55,461 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 06:43:55,461 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 128 [2023-11-29 06:43:55,461 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 06:43:55,671 INFO L124 PetriNetUnfolderBase]: 172/1228 cut-off events. [2023-11-29 06:43:55,672 INFO L125 PetriNetUnfolderBase]: For 203/446 co-relation queries the response was YES. [2023-11-29 06:43:55,678 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1870 conditions, 1228 events. 172/1228 cut-off events. For 203/446 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 8870 event pairs, 77 based on Foata normal form. 3/1082 useless extension candidates. Maximal degree in co-relation 1800. Up to 270 conditions per place. [2023-11-29 06:43:55,684 INFO L140 encePairwiseOnDemand]: 122/128 looper letters, 19 selfloop transitions, 7 changer transitions 0/138 dead transitions. [2023-11-29 06:43:55,684 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 138 transitions, 418 flow [2023-11-29 06:43:55,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 06:43:55,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 06:43:55,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 354 transitions. [2023-11-29 06:43:55,686 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.921875 [2023-11-29 06:43:55,687 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 354 transitions. [2023-11-29 06:43:55,687 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 354 transitions. [2023-11-29 06:43:55,687 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:43:55,687 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 354 transitions. [2023-11-29 06:43:55,688 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 118.0) internal successors, (354), 3 states have internal predecessors, (354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:43:55,690 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 128.0) internal successors, (512), 4 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:43:55,690 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 128.0) internal successors, (512), 4 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:43:55,690 INFO L175 Difference]: Start difference. First operand has 143 places, 129 transitions, 334 flow. Second operand 3 states and 354 transitions. [2023-11-29 06:43:55,690 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 138 transitions, 418 flow [2023-11-29 06:43:55,693 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 138 transitions, 406 flow, removed 5 selfloop flow, removed 4 redundant places. [2023-11-29 06:43:55,695 INFO L231 Difference]: Finished difference. Result has 140 places, 134 transitions, 378 flow [2023-11-29 06:43:55,695 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=322, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=378, PETRI_PLACES=140, PETRI_TRANSITIONS=134} [2023-11-29 06:43:55,696 INFO L281 CegarLoopForPetriNet]: 128 programPoint places, 12 predicate places. [2023-11-29 06:43:55,696 INFO L495 AbstractCegarLoop]: Abstraction has has 140 places, 134 transitions, 378 flow [2023-11-29 06:43:55,696 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 111.66666666666667) internal successors, (335), 3 states have internal predecessors, (335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:43:55,697 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:43:55,697 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:43:55,697 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-29 06:43:55,697 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-11-29 06:43:55,697 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:43:55,698 INFO L85 PathProgramCache]: Analyzing trace with hash 2080536180, now seen corresponding path program 1 times [2023-11-29 06:43:55,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:43:55,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046521726] [2023-11-29 06:43:55,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:43:55,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:43:55,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:43:56,134 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 06:43:56,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:43:56,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046521726] [2023-11-29 06:43:56,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046521726] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:43:56,135 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:43:56,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 06:43:56,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543310897] [2023-11-29 06:43:56,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:43:56,136 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 06:43:56,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:43:56,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 06:43:56,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 06:43:56,354 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 128 [2023-11-29 06:43:56,355 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 134 transitions, 378 flow. Second operand has 6 states, 6 states have (on average 105.5) internal successors, (633), 6 states have internal predecessors, (633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:43:56,355 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 06:43:56,355 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 128 [2023-11-29 06:43:56,355 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 06:43:56,676 INFO L124 PetriNetUnfolderBase]: 305/1642 cut-off events. [2023-11-29 06:43:56,676 INFO L125 PetriNetUnfolderBase]: For 244/262 co-relation queries the response was YES. [2023-11-29 06:43:56,681 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2680 conditions, 1642 events. 305/1642 cut-off events. For 244/262 co-relation queries the response was YES. Maximal size of possible extension queue 86. Compared 12910 event pairs, 131 based on Foata normal form. 2/1516 useless extension candidates. Maximal degree in co-relation 2244. Up to 287 conditions per place. [2023-11-29 06:43:56,688 INFO L140 encePairwiseOnDemand]: 122/128 looper letters, 31 selfloop transitions, 5 changer transitions 0/149 dead transitions. [2023-11-29 06:43:56,688 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 149 transitions, 480 flow [2023-11-29 06:43:56,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 06:43:56,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 06:43:56,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 661 transitions. [2023-11-29 06:43:56,691 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8606770833333334 [2023-11-29 06:43:56,691 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 661 transitions. [2023-11-29 06:43:56,691 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 661 transitions. [2023-11-29 06:43:56,692 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:43:56,692 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 661 transitions. [2023-11-29 06:43:56,694 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 110.16666666666667) internal successors, (661), 6 states have internal predecessors, (661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:43:56,696 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 128.0) internal successors, (896), 7 states have internal predecessors, (896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:43:56,697 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 128.0) internal successors, (896), 7 states have internal predecessors, (896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:43:56,697 INFO L175 Difference]: Start difference. First operand has 140 places, 134 transitions, 378 flow. Second operand 6 states and 661 transitions. [2023-11-29 06:43:56,697 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 149 transitions, 480 flow [2023-11-29 06:43:56,700 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 149 transitions, 466 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-29 06:43:56,703 INFO L231 Difference]: Finished difference. Result has 142 places, 133 transitions, 372 flow [2023-11-29 06:43:56,703 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=362, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=128, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=372, PETRI_PLACES=142, PETRI_TRANSITIONS=133} [2023-11-29 06:43:56,704 INFO L281 CegarLoopForPetriNet]: 128 programPoint places, 14 predicate places. [2023-11-29 06:43:56,704 INFO L495 AbstractCegarLoop]: Abstraction has has 142 places, 133 transitions, 372 flow [2023-11-29 06:43:56,704 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 105.5) internal successors, (633), 6 states have internal predecessors, (633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:43:56,705 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:43:56,705 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 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] [2023-11-29 06:43:56,705 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-29 06:43:56,705 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-11-29 06:43:56,705 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:43:56,706 INFO L85 PathProgramCache]: Analyzing trace with hash -621832184, now seen corresponding path program 1 times [2023-11-29 06:43:56,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:43:56,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650547478] [2023-11-29 06:43:56,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:43:56,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:43:56,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:43:56,759 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-11-29 06:43:56,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:43:56,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650547478] [2023-11-29 06:43:56,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1650547478] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:43:56,760 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:43:56,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 06:43:56,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730586799] [2023-11-29 06:43:56,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:43:56,760 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 06:43:56,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:43:56,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 06:43:56,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 06:43:56,774 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 128 [2023-11-29 06:43:56,774 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 133 transitions, 372 flow. Second operand has 3 states, 3 states have (on average 112.0) internal successors, (336), 3 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:43:56,774 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 06:43:56,775 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 128 [2023-11-29 06:43:56,775 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 06:43:57,030 INFO L124 PetriNetUnfolderBase]: 236/1653 cut-off events. [2023-11-29 06:43:57,030 INFO L125 PetriNetUnfolderBase]: For 572/2029 co-relation queries the response was YES. [2023-11-29 06:43:57,035 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2796 conditions, 1653 events. 236/1653 cut-off events. For 572/2029 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 13564 event pairs, 93 based on Foata normal form. 2/1501 useless extension candidates. Maximal degree in co-relation 2511. Up to 351 conditions per place. [2023-11-29 06:43:57,041 INFO L140 encePairwiseOnDemand]: 122/128 looper letters, 19 selfloop transitions, 10 changer transitions 0/142 dead transitions. [2023-11-29 06:43:57,041 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 142 transitions, 467 flow [2023-11-29 06:43:57,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 06:43:57,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 06:43:57,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 353 transitions. [2023-11-29 06:43:57,043 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9192708333333334 [2023-11-29 06:43:57,044 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 353 transitions. [2023-11-29 06:43:57,044 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 353 transitions. [2023-11-29 06:43:57,044 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:43:57,044 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 353 transitions. [2023-11-29 06:43:57,045 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 117.66666666666667) internal successors, (353), 3 states have internal predecessors, (353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:43:57,047 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 128.0) internal successors, (512), 4 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:43:57,047 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 128.0) internal successors, (512), 4 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:43:57,047 INFO L175 Difference]: Start difference. First operand has 142 places, 133 transitions, 372 flow. Second operand 3 states and 353 transitions. [2023-11-29 06:43:57,047 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 142 transitions, 467 flow [2023-11-29 06:43:57,051 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 142 transitions, 457 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-29 06:43:57,053 INFO L231 Difference]: Finished difference. Result has 141 places, 139 transitions, 444 flow [2023-11-29 06:43:57,054 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=362, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=444, PETRI_PLACES=141, PETRI_TRANSITIONS=139} [2023-11-29 06:43:57,054 INFO L281 CegarLoopForPetriNet]: 128 programPoint places, 13 predicate places. [2023-11-29 06:43:57,054 INFO L495 AbstractCegarLoop]: Abstraction has has 141 places, 139 transitions, 444 flow [2023-11-29 06:43:57,055 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 112.0) internal successors, (336), 3 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:43:57,055 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:43:57,055 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:43:57,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-29 06:43:57,055 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-11-29 06:43:57,055 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:43:57,056 INFO L85 PathProgramCache]: Analyzing trace with hash -1922552731, now seen corresponding path program 1 times [2023-11-29 06:43:57,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:43:57,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100551953] [2023-11-29 06:43:57,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:43:57,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:43:57,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:43:57,178 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:43:57,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:43:57,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100551953] [2023-11-29 06:43:57,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [100551953] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:43:57,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1632479182] [2023-11-29 06:43:57,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:43:57,179 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:43:57,179 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_140527c8-8106-4f08-860d-a429ab78858d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:43:57,183 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_140527c8-8106-4f08-860d-a429ab78858d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:43:57,187 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_140527c8-8106-4f08-860d-a429ab78858d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 06:43:57,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:43:57,306 INFO L262 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 06:43:57,309 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:43:57,400 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:43:57,400 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:43:57,465 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:43:57,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1632479182] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:43:57,465 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 06:43:57,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 9 [2023-11-29 06:43:57,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022936940] [2023-11-29 06:43:57,466 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 06:43:57,466 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 06:43:57,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:43:57,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 06:43:57,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-11-29 06:43:57,585 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 128 [2023-11-29 06:43:57,587 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 139 transitions, 444 flow. Second operand has 9 states, 9 states have (on average 106.33333333333333) internal successors, (957), 9 states have internal predecessors, (957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:43:57,587 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 06:43:57,587 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 128 [2023-11-29 06:43:57,587 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 06:43:57,895 INFO L124 PetriNetUnfolderBase]: 189/1467 cut-off events. [2023-11-29 06:43:57,895 INFO L125 PetriNetUnfolderBase]: For 427/473 co-relation queries the response was YES. [2023-11-29 06:43:57,899 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2350 conditions, 1467 events. 189/1467 cut-off events. For 427/473 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 10632 event pairs, 62 based on Foata normal form. 0/1411 useless extension candidates. Maximal degree in co-relation 1184. Up to 177 conditions per place. [2023-11-29 06:43:57,905 INFO L140 encePairwiseOnDemand]: 118/128 looper letters, 25 selfloop transitions, 9 changer transitions 12/159 dead transitions. [2023-11-29 06:43:57,905 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 159 transitions, 556 flow [2023-11-29 06:43:57,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 06:43:57,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-29 06:43:57,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 878 transitions. [2023-11-29 06:43:57,908 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.857421875 [2023-11-29 06:43:57,908 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 878 transitions. [2023-11-29 06:43:57,909 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 878 transitions. [2023-11-29 06:43:57,909 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:43:57,909 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 878 transitions. [2023-11-29 06:43:57,912 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 109.75) internal successors, (878), 8 states have internal predecessors, (878), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:43:57,915 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 128.0) internal successors, (1152), 9 states have internal predecessors, (1152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:43:57,915 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 128.0) internal successors, (1152), 9 states have internal predecessors, (1152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:43:57,916 INFO L175 Difference]: Start difference. First operand has 141 places, 139 transitions, 444 flow. Second operand 8 states and 878 transitions. [2023-11-29 06:43:57,916 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 159 transitions, 556 flow [2023-11-29 06:43:57,919 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 159 transitions, 542 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-29 06:43:57,922 INFO L231 Difference]: Finished difference. Result has 149 places, 137 transitions, 435 flow [2023-11-29 06:43:57,922 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=400, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=435, PETRI_PLACES=149, PETRI_TRANSITIONS=137} [2023-11-29 06:43:57,923 INFO L281 CegarLoopForPetriNet]: 128 programPoint places, 21 predicate places. [2023-11-29 06:43:57,923 INFO L495 AbstractCegarLoop]: Abstraction has has 149 places, 137 transitions, 435 flow [2023-11-29 06:43:57,923 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 106.33333333333333) internal successors, (957), 9 states have internal predecessors, (957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:43:57,923 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:43:57,924 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 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] [2023-11-29 06:43:57,930 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_140527c8-8106-4f08-860d-a429ab78858d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 06:43:58,124 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_140527c8-8106-4f08-860d-a429ab78858d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-29 06:43:58,125 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-11-29 06:43:58,125 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:43:58,125 INFO L85 PathProgramCache]: Analyzing trace with hash 1239219228, now seen corresponding path program 1 times [2023-11-29 06:43:58,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:43:58,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668394248] [2023-11-29 06:43:58,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:43:58,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:43:58,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 06:43:58,158 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 06:43:58,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 06:43:58,184 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 06:43:58,184 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-29 06:43:58,184 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 9 remaining) [2023-11-29 06:43:58,184 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (7 of 9 remaining) [2023-11-29 06:43:58,184 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (6 of 9 remaining) [2023-11-29 06:43:58,184 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (5 of 9 remaining) [2023-11-29 06:43:58,184 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (4 of 9 remaining) [2023-11-29 06:43:58,185 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (3 of 9 remaining) [2023-11-29 06:43:58,185 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (2 of 9 remaining) [2023-11-29 06:43:58,185 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 9 remaining) [2023-11-29 06:43:58,185 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 9 remaining) [2023-11-29 06:43:58,185 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-29 06:43:58,185 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:43:58,186 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-29 06:43:58,186 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2023-11-29 06:43:58,208 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-11-29 06:43:58,211 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 147 places, 146 transitions, 319 flow [2023-11-29 06:43:58,271 INFO L124 PetriNetUnfolderBase]: 21/494 cut-off events. [2023-11-29 06:43:58,271 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2023-11-29 06:43:58,272 INFO L83 FinitePrefix]: Finished finitePrefix Result has 519 conditions, 494 events. 21/494 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1487 event pairs, 1 based on Foata normal form. 0/430 useless extension candidates. Maximal degree in co-relation 292. Up to 16 conditions per place. [2023-11-29 06:43:58,273 INFO L82 GeneralOperation]: Start removeDead. Operand has 147 places, 146 transitions, 319 flow [2023-11-29 06:43:58,276 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 147 places, 146 transitions, 319 flow [2023-11-29 06:43:58,277 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 06:43:58,278 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=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;@5f1ae0b7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 06:43:58,278 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2023-11-29 06:43:58,281 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-29 06:43:58,282 INFO L124 PetriNetUnfolderBase]: 3/52 cut-off events. [2023-11-29 06:43:58,282 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-29 06:43:58,282 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:43:58,282 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:43:58,282 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2023-11-29 06:43:58,282 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:43:58,282 INFO L85 PathProgramCache]: Analyzing trace with hash 625743047, now seen corresponding path program 1 times [2023-11-29 06:43:58,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:43:58,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603434689] [2023-11-29 06:43:58,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:43:58,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:43:58,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:43:58,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:43:58,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:43:58,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603434689] [2023-11-29 06:43:58,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603434689] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:43:58,495 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:43:58,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 06:43:58,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083714473] [2023-11-29 06:43:58,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:43:58,496 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 06:43:58,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:43:58,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 06:43:58,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 06:43:58,661 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 146 [2023-11-29 06:43:58,662 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 146 transitions, 319 flow. Second operand has 6 states, 6 states have (on average 110.16666666666667) internal successors, (661), 6 states have internal predecessors, (661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:43:58,662 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 06:43:58,662 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 146 [2023-11-29 06:43:58,662 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 06:43:59,753 INFO L124 PetriNetUnfolderBase]: 1609/7822 cut-off events. [2023-11-29 06:43:59,754 INFO L125 PetriNetUnfolderBase]: For 217/217 co-relation queries the response was YES. [2023-11-29 06:43:59,767 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10579 conditions, 7822 events. 1609/7822 cut-off events. For 217/217 co-relation queries the response was YES. Maximal size of possible extension queue 238. Compared 82478 event pairs, 1387 based on Foata normal form. 80/7310 useless extension candidates. Maximal degree in co-relation 3416. Up to 2326 conditions per place. [2023-11-29 06:43:59,800 INFO L140 encePairwiseOnDemand]: 127/146 looper letters, 36 selfloop transitions, 13 changer transitions 1/158 dead transitions. [2023-11-29 06:43:59,800 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 158 transitions, 441 flow [2023-11-29 06:43:59,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 06:43:59,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 06:43:59,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 711 transitions. [2023-11-29 06:43:59,802 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8116438356164384 [2023-11-29 06:43:59,803 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 711 transitions. [2023-11-29 06:43:59,803 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 711 transitions. [2023-11-29 06:43:59,803 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:43:59,803 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 711 transitions. [2023-11-29 06:43:59,805 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 118.5) internal successors, (711), 6 states have internal predecessors, (711), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:43:59,807 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 146.0) internal successors, (1022), 7 states have internal predecessors, (1022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:43:59,808 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 146.0) internal successors, (1022), 7 states have internal predecessors, (1022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:43:59,808 INFO L175 Difference]: Start difference. First operand has 147 places, 146 transitions, 319 flow. Second operand 6 states and 711 transitions. [2023-11-29 06:43:59,808 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 158 transitions, 441 flow [2023-11-29 06:43:59,809 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 158 transitions, 441 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-29 06:43:59,811 INFO L231 Difference]: Finished difference. Result has 153 places, 151 transitions, 401 flow [2023-11-29 06:43:59,811 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=146, PETRI_DIFFERENCE_MINUEND_FLOW=307, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=401, PETRI_PLACES=153, PETRI_TRANSITIONS=151} [2023-11-29 06:43:59,812 INFO L281 CegarLoopForPetriNet]: 147 programPoint places, 6 predicate places. [2023-11-29 06:43:59,812 INFO L495 AbstractCegarLoop]: Abstraction has has 153 places, 151 transitions, 401 flow [2023-11-29 06:43:59,812 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 110.16666666666667) internal successors, (661), 6 states have internal predecessors, (661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:43:59,812 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:43:59,812 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:43:59,812 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-29 06:43:59,813 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2023-11-29 06:43:59,813 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:43:59,813 INFO L85 PathProgramCache]: Analyzing trace with hash -1518203159, now seen corresponding path program 1 times [2023-11-29 06:43:59,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:43:59,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035060701] [2023-11-29 06:43:59,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:43:59,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:43:59,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:43:59,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:43:59,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:43:59,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035060701] [2023-11-29 06:43:59,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2035060701] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:43:59,836 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:43:59,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 06:43:59,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129399656] [2023-11-29 06:43:59,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:43:59,836 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 06:43:59,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:43:59,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 06:43:59,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 06:43:59,853 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 146 [2023-11-29 06:43:59,854 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 151 transitions, 401 flow. Second operand has 3 states, 3 states have (on average 125.66666666666667) internal successors, (377), 3 states have internal predecessors, (377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:43:59,854 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 06:43:59,854 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 146 [2023-11-29 06:43:59,854 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 06:44:00,516 INFO L124 PetriNetUnfolderBase]: 1072/4728 cut-off events. [2023-11-29 06:44:00,516 INFO L125 PetriNetUnfolderBase]: For 503/851 co-relation queries the response was YES. [2023-11-29 06:44:00,531 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7064 conditions, 4728 events. 1072/4728 cut-off events. For 503/851 co-relation queries the response was YES. Maximal size of possible extension queue 185. Compared 43937 event pairs, 542 based on Foata normal form. 0/4245 useless extension candidates. Maximal degree in co-relation 6338. Up to 1110 conditions per place. [2023-11-29 06:44:00,552 INFO L140 encePairwiseOnDemand]: 140/146 looper letters, 23 selfloop transitions, 5 changer transitions 4/161 dead transitions. [2023-11-29 06:44:00,552 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 154 places, 161 transitions, 477 flow [2023-11-29 06:44:00,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 06:44:00,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 06:44:00,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 404 transitions. [2023-11-29 06:44:00,554 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9223744292237442 [2023-11-29 06:44:00,554 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 404 transitions. [2023-11-29 06:44:00,554 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 404 transitions. [2023-11-29 06:44:00,555 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:44:00,555 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 404 transitions. [2023-11-29 06:44:00,556 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 134.66666666666666) internal successors, (404), 3 states have internal predecessors, (404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:44:00,557 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 146.0) internal successors, (584), 4 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:44:00,557 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 146.0) internal successors, (584), 4 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:44:00,558 INFO L175 Difference]: Start difference. First operand has 153 places, 151 transitions, 401 flow. Second operand 3 states and 404 transitions. [2023-11-29 06:44:00,558 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 154 places, 161 transitions, 477 flow [2023-11-29 06:44:00,578 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 161 transitions, 473 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-29 06:44:00,581 INFO L231 Difference]: Finished difference. Result has 155 places, 151 transitions, 413 flow [2023-11-29 06:44:00,581 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=146, PETRI_DIFFERENCE_MINUEND_FLOW=397, PETRI_DIFFERENCE_MINUEND_PLACES=151, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=151, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=146, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=413, PETRI_PLACES=155, PETRI_TRANSITIONS=151} [2023-11-29 06:44:00,581 INFO L281 CegarLoopForPetriNet]: 147 programPoint places, 8 predicate places. [2023-11-29 06:44:00,582 INFO L495 AbstractCegarLoop]: Abstraction has has 155 places, 151 transitions, 413 flow [2023-11-29 06:44:00,582 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 125.66666666666667) internal successors, (377), 3 states have internal predecessors, (377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:44:00,582 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:44:00,582 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:44:00,582 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-29 06:44:00,582 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2023-11-29 06:44:00,583 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:44:00,583 INFO L85 PathProgramCache]: Analyzing trace with hash 695862285, now seen corresponding path program 1 times [2023-11-29 06:44:00,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:44:00,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410482850] [2023-11-29 06:44:00,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:44:00,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:44:00,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:44:00,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:44:00,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:44:00,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410482850] [2023-11-29 06:44:00,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1410482850] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:44:00,653 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:44:00,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 06:44:00,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561010292] [2023-11-29 06:44:00,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:44:00,654 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 06:44:00,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:44:00,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 06:44:00,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 06:44:00,706 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 146 [2023-11-29 06:44:00,707 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 151 transitions, 413 flow. Second operand has 5 states, 5 states have (on average 121.4) internal successors, (607), 5 states have internal predecessors, (607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:44:00,707 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 06:44:00,707 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 146 [2023-11-29 06:44:00,707 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 06:44:01,568 INFO L124 PetriNetUnfolderBase]: 1324/6579 cut-off events. [2023-11-29 06:44:01,568 INFO L125 PetriNetUnfolderBase]: For 394/394 co-relation queries the response was YES. [2023-11-29 06:44:01,589 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9642 conditions, 6579 events. 1324/6579 cut-off events. For 394/394 co-relation queries the response was YES. Maximal size of possible extension queue 187. Compared 66365 event pairs, 765 based on Foata normal form. 1/5859 useless extension candidates. Maximal degree in co-relation 5883. Up to 1710 conditions per place. [2023-11-29 06:44:01,612 INFO L140 encePairwiseOnDemand]: 139/146 looper letters, 24 selfloop transitions, 2 changer transitions 4/154 dead transitions. [2023-11-29 06:44:01,613 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 154 transitions, 465 flow [2023-11-29 06:44:01,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 06:44:01,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 06:44:01,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 751 transitions. [2023-11-29 06:44:01,616 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8573059360730594 [2023-11-29 06:44:01,616 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 751 transitions. [2023-11-29 06:44:01,616 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 751 transitions. [2023-11-29 06:44:01,617 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:44:01,617 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 751 transitions. [2023-11-29 06:44:01,619 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 125.16666666666667) internal successors, (751), 6 states have internal predecessors, (751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:44:01,621 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 146.0) internal successors, (1022), 7 states have internal predecessors, (1022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:44:01,621 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 146.0) internal successors, (1022), 7 states have internal predecessors, (1022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:44:01,622 INFO L175 Difference]: Start difference. First operand has 155 places, 151 transitions, 413 flow. Second operand 6 states and 751 transitions. [2023-11-29 06:44:01,622 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 160 places, 154 transitions, 465 flow [2023-11-29 06:44:01,630 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 158 places, 154 transitions, 441 flow, removed 7 selfloop flow, removed 2 redundant places. [2023-11-29 06:44:01,632 INFO L231 Difference]: Finished difference. Result has 162 places, 148 transitions, 387 flow [2023-11-29 06:44:01,633 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=146, PETRI_DIFFERENCE_MINUEND_FLOW=367, PETRI_DIFFERENCE_MINUEND_PLACES=153, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=147, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=145, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=387, PETRI_PLACES=162, PETRI_TRANSITIONS=148} [2023-11-29 06:44:01,633 INFO L281 CegarLoopForPetriNet]: 147 programPoint places, 15 predicate places. [2023-11-29 06:44:01,633 INFO L495 AbstractCegarLoop]: Abstraction has has 162 places, 148 transitions, 387 flow [2023-11-29 06:44:01,634 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 121.4) internal successors, (607), 5 states have internal predecessors, (607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:44:01,634 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:44:01,634 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:44:01,634 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-29 06:44:01,634 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2023-11-29 06:44:01,634 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:44:01,634 INFO L85 PathProgramCache]: Analyzing trace with hash 1036705410, now seen corresponding path program 1 times [2023-11-29 06:44:01,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:44:01,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450598421] [2023-11-29 06:44:01,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:44:01,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:44:01,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:44:01,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:44:01,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:44:01,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450598421] [2023-11-29 06:44:01,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [450598421] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:44:01,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:44:01,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 06:44:01,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445660510] [2023-11-29 06:44:01,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:44:01,668 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 06:44:01,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:44:01,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 06:44:01,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 06:44:01,687 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 146 [2023-11-29 06:44:01,688 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 148 transitions, 387 flow. Second operand has 3 states, 3 states have (on average 124.66666666666667) internal successors, (374), 3 states have internal predecessors, (374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:44:01,688 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 06:44:01,688 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 146 [2023-11-29 06:44:01,688 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 06:44:02,712 INFO L124 PetriNetUnfolderBase]: 1718/7521 cut-off events. [2023-11-29 06:44:02,712 INFO L125 PetriNetUnfolderBase]: For 1561/4111 co-relation queries the response was YES. [2023-11-29 06:44:02,729 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12122 conditions, 7521 events. 1718/7521 cut-off events. For 1561/4111 co-relation queries the response was YES. Maximal size of possible extension queue 342. Compared 80322 event pairs, 957 based on Foata normal form. 8/6692 useless extension candidates. Maximal degree in co-relation 12051. Up to 2225 conditions per place. [2023-11-29 06:44:02,754 INFO L140 encePairwiseOnDemand]: 139/146 looper letters, 29 selfloop transitions, 9 changer transitions 0/163 dead transitions. [2023-11-29 06:44:02,754 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 163 transitions, 521 flow [2023-11-29 06:44:02,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 06:44:02,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 06:44:02,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 403 transitions. [2023-11-29 06:44:02,757 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9200913242009132 [2023-11-29 06:44:02,757 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 403 transitions. [2023-11-29 06:44:02,757 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 403 transitions. [2023-11-29 06:44:02,757 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:44:02,758 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 403 transitions. [2023-11-29 06:44:02,759 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 134.33333333333334) internal successors, (403), 3 states have internal predecessors, (403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:44:02,761 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 146.0) internal successors, (584), 4 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:44:02,761 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 146.0) internal successors, (584), 4 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:44:02,761 INFO L175 Difference]: Start difference. First operand has 162 places, 148 transitions, 387 flow. Second operand 3 states and 403 transitions. [2023-11-29 06:44:02,761 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 163 transitions, 521 flow [2023-11-29 06:44:02,767 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 157 places, 163 transitions, 509 flow, removed 5 selfloop flow, removed 4 redundant places. [2023-11-29 06:44:02,769 INFO L231 Difference]: Finished difference. Result has 159 places, 155 transitions, 451 flow [2023-11-29 06:44:02,769 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=146, PETRI_DIFFERENCE_MINUEND_FLOW=375, PETRI_DIFFERENCE_MINUEND_PLACES=155, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=148, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=139, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=451, PETRI_PLACES=159, PETRI_TRANSITIONS=155} [2023-11-29 06:44:02,770 INFO L281 CegarLoopForPetriNet]: 147 programPoint places, 12 predicate places. [2023-11-29 06:44:02,770 INFO L495 AbstractCegarLoop]: Abstraction has has 159 places, 155 transitions, 451 flow [2023-11-29 06:44:02,771 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 124.66666666666667) internal successors, (374), 3 states have internal predecessors, (374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:44:02,771 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:44:02,771 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:44:02,771 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-29 06:44:02,771 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2023-11-29 06:44:02,772 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:44:02,772 INFO L85 PathProgramCache]: Analyzing trace with hash 2002288132, now seen corresponding path program 1 times [2023-11-29 06:44:02,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:44:02,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129275386] [2023-11-29 06:44:02,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:44:02,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:44:02,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:44:03,176 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 06:44:03,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:44:03,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129275386] [2023-11-29 06:44:03,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [129275386] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:44:03,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:44:03,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 06:44:03,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747253759] [2023-11-29 06:44:03,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:44:03,177 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 06:44:03,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:44:03,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 06:44:03,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 06:44:03,421 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 146 [2023-11-29 06:44:03,422 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 155 transitions, 451 flow. Second operand has 6 states, 6 states have (on average 119.5) internal successors, (717), 6 states have internal predecessors, (717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:44:03,423 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 06:44:03,423 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 146 [2023-11-29 06:44:03,423 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 06:44:04,628 INFO L124 PetriNetUnfolderBase]: 2597/9499 cut-off events. [2023-11-29 06:44:04,629 INFO L125 PetriNetUnfolderBase]: For 1430/1684 co-relation queries the response was YES. [2023-11-29 06:44:04,743 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16000 conditions, 9499 events. 2597/9499 cut-off events. For 1430/1684 co-relation queries the response was YES. Maximal size of possible extension queue 364. Compared 101294 event pairs, 1164 based on Foata normal form. 17/8528 useless extension candidates. Maximal degree in co-relation 13467. Up to 1870 conditions per place. [2023-11-29 06:44:04,770 INFO L140 encePairwiseOnDemand]: 140/146 looper letters, 43 selfloop transitions, 5 changer transitions 0/178 dead transitions. [2023-11-29 06:44:04,770 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 163 places, 178 transitions, 593 flow [2023-11-29 06:44:04,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 06:44:04,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 06:44:04,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 757 transitions. [2023-11-29 06:44:04,773 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8641552511415526 [2023-11-29 06:44:04,773 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 757 transitions. [2023-11-29 06:44:04,773 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 757 transitions. [2023-11-29 06:44:04,774 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:44:04,774 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 757 transitions. [2023-11-29 06:44:04,776 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 126.16666666666667) internal successors, (757), 6 states have internal predecessors, (757), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:44:04,779 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 146.0) internal successors, (1022), 7 states have internal predecessors, (1022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:44:04,779 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 146.0) internal successors, (1022), 7 states have internal predecessors, (1022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:44:04,779 INFO L175 Difference]: Start difference. First operand has 159 places, 155 transitions, 451 flow. Second operand 6 states and 757 transitions. [2023-11-29 06:44:04,779 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 163 places, 178 transitions, 593 flow [2023-11-29 06:44:04,789 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 161 places, 178 transitions, 575 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-29 06:44:04,792 INFO L231 Difference]: Finished difference. Result has 161 places, 154 transitions, 441 flow [2023-11-29 06:44:04,792 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=146, PETRI_DIFFERENCE_MINUEND_FLOW=431, PETRI_DIFFERENCE_MINUEND_PLACES=156, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=154, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=149, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=441, PETRI_PLACES=161, PETRI_TRANSITIONS=154} [2023-11-29 06:44:04,793 INFO L281 CegarLoopForPetriNet]: 147 programPoint places, 14 predicate places. [2023-11-29 06:44:04,793 INFO L495 AbstractCegarLoop]: Abstraction has has 161 places, 154 transitions, 441 flow [2023-11-29 06:44:04,794 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 119.5) internal successors, (717), 6 states have internal predecessors, (717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:44:04,794 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:44:04,794 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 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] [2023-11-29 06:44:04,794 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-11-29 06:44:04,794 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2023-11-29 06:44:04,794 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:44:04,795 INFO L85 PathProgramCache]: Analyzing trace with hash -357368312, now seen corresponding path program 1 times [2023-11-29 06:44:04,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:44:04,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312190207] [2023-11-29 06:44:04,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:44:04,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:44:04,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:44:04,888 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-11-29 06:44:04,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:44:04,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312190207] [2023-11-29 06:44:04,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [312190207] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:44:04,889 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:44:04,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 06:44:04,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722285305] [2023-11-29 06:44:04,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:44:04,889 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 06:44:04,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:44:04,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 06:44:04,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 06:44:04,905 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 146 [2023-11-29 06:44:04,906 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 154 transitions, 441 flow. Second operand has 3 states, 3 states have (on average 125.0) internal successors, (375), 3 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:44:04,906 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 06:44:04,906 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 146 [2023-11-29 06:44:04,906 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 06:44:06,227 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([463] L1038-->L1038-1: Formula: (= |v_#race~data~0_6| 0) InVars {} OutVars{#race~data~0=|v_#race~data~0_6|} AuxVars[] AssignedVars[#race~data~0][133], [Black: 150#true, Black: 161#true, 3#L1023-6true, 192#true, threadThread1of3ForFork0InUse, Black: 169#(= |ULTIMATE.start_main_~i~0#1| 0), 34#L1023-6true, threadThread2of3ForFork0InUse, threadThread3of3ForFork0NotInUse, 185#true, Black: 181#(= |#race~data~0| |threadThread1of3ForFork0_#t~nondet5|), Black: 154#(and (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ |ULTIMATE.start_main_~#tids~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ 2 |ULTIMATE.start_main_~#tids~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0)), Black: 152#(= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0), 121#L1038-1true, Black: 153#(and (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ |ULTIMATE.start_main_~#tids~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0))]) [2023-11-29 06:44:06,228 INFO L294 olderBase$Statistics]: this new event has 144 ancestors and is cut-off event [2023-11-29 06:44:06,228 INFO L297 olderBase$Statistics]: existing Event has 93 ancestors and is cut-off event [2023-11-29 06:44:06,228 INFO L297 olderBase$Statistics]: existing Event has 93 ancestors and is cut-off event [2023-11-29 06:44:06,228 INFO L297 olderBase$Statistics]: existing Event has 144 ancestors and is cut-off event [2023-11-29 06:44:06,337 INFO L124 PetriNetUnfolderBase]: 2782/11571 cut-off events. [2023-11-29 06:44:06,337 INFO L125 PetriNetUnfolderBase]: For 5480/11422 co-relation queries the response was YES. [2023-11-29 06:44:06,375 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21016 conditions, 11571 events. 2782/11571 cut-off events. For 5480/11422 co-relation queries the response was YES. Maximal size of possible extension queue 522. Compared 133743 event pairs, 1146 based on Foata normal form. 22/10096 useless extension candidates. Maximal degree in co-relation 18431. Up to 3318 conditions per place. [2023-11-29 06:44:06,417 INFO L140 encePairwiseOnDemand]: 139/146 looper letters, 31 selfloop transitions, 14 changer transitions 0/171 dead transitions. [2023-11-29 06:44:06,417 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 163 places, 171 transitions, 610 flow [2023-11-29 06:44:06,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 06:44:06,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 06:44:06,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 402 transitions. [2023-11-29 06:44:06,420 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9178082191780822 [2023-11-29 06:44:06,420 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 402 transitions. [2023-11-29 06:44:06,420 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 402 transitions. [2023-11-29 06:44:06,420 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:44:06,420 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 402 transitions. [2023-11-29 06:44:06,422 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 134.0) internal successors, (402), 3 states have internal predecessors, (402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:44:06,423 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 146.0) internal successors, (584), 4 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:44:06,423 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 146.0) internal successors, (584), 4 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:44:06,424 INFO L175 Difference]: Start difference. First operand has 161 places, 154 transitions, 441 flow. Second operand 3 states and 402 transitions. [2023-11-29 06:44:06,424 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 163 places, 171 transitions, 610 flow [2023-11-29 06:44:06,436 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 158 places, 171 transitions, 600 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-29 06:44:06,439 INFO L231 Difference]: Finished difference. Result has 160 places, 164 transitions, 561 flow [2023-11-29 06:44:06,439 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=146, PETRI_DIFFERENCE_MINUEND_FLOW=431, PETRI_DIFFERENCE_MINUEND_PLACES=156, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=154, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=140, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=561, PETRI_PLACES=160, PETRI_TRANSITIONS=164} [2023-11-29 06:44:06,440 INFO L281 CegarLoopForPetriNet]: 147 programPoint places, 13 predicate places. [2023-11-29 06:44:06,440 INFO L495 AbstractCegarLoop]: Abstraction has has 160 places, 164 transitions, 561 flow [2023-11-29 06:44:06,440 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 125.0) internal successors, (375), 3 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:44:06,440 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:44:06,440 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:44:06,440 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-11-29 06:44:06,441 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2023-11-29 06:44:06,441 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:44:06,441 INFO L85 PathProgramCache]: Analyzing trace with hash -813382457, now seen corresponding path program 1 times [2023-11-29 06:44:06,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:44:06,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996288667] [2023-11-29 06:44:06,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:44:06,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:44:06,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:44:06,532 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:44:06,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:44:06,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996288667] [2023-11-29 06:44:06,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996288667] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:44:06,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [361985905] [2023-11-29 06:44:06,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:44:06,533 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:44:06,533 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_140527c8-8106-4f08-860d-a429ab78858d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:44:06,534 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_140527c8-8106-4f08-860d-a429ab78858d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:44:06,539 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_140527c8-8106-4f08-860d-a429ab78858d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 06:44:06,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:44:06,667 INFO L262 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 06:44:06,670 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:44:06,729 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:44:06,730 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:44:06,790 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:44:06,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [361985905] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:44:06,791 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 06:44:06,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 9 [2023-11-29 06:44:06,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221019304] [2023-11-29 06:44:06,791 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 06:44:06,792 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 06:44:06,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:44:06,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 06:44:06,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-11-29 06:44:06,909 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 146 [2023-11-29 06:44:06,911 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 160 places, 164 transitions, 561 flow. Second operand has 9 states, 9 states have (on average 120.33333333333333) internal successors, (1083), 9 states have internal predecessors, (1083), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:44:06,911 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 06:44:06,911 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 146 [2023-11-29 06:44:06,911 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 06:44:08,324 INFO L124 PetriNetUnfolderBase]: 2062/10483 cut-off events. [2023-11-29 06:44:08,324 INFO L125 PetriNetUnfolderBase]: For 3524/4167 co-relation queries the response was YES. [2023-11-29 06:44:08,366 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17464 conditions, 10483 events. 2062/10483 cut-off events. For 3524/4167 co-relation queries the response was YES. Maximal size of possible extension queue 296. Compared 118151 event pairs, 547 based on Foata normal form. 5/9696 useless extension candidates. Maximal degree in co-relation 9561. Up to 1321 conditions per place. [2023-11-29 06:44:08,397 INFO L140 encePairwiseOnDemand]: 136/146 looper letters, 48 selfloop transitions, 10 changer transitions 0/195 dead transitions. [2023-11-29 06:44:08,397 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 167 places, 195 transitions, 740 flow [2023-11-29 06:44:08,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 06:44:08,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-29 06:44:08,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1003 transitions. [2023-11-29 06:44:08,402 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8587328767123288 [2023-11-29 06:44:08,402 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1003 transitions. [2023-11-29 06:44:08,402 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1003 transitions. [2023-11-29 06:44:08,403 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:44:08,403 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1003 transitions. [2023-11-29 06:44:08,406 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 125.375) internal successors, (1003), 8 states have internal predecessors, (1003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:44:08,410 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 146.0) internal successors, (1314), 9 states have internal predecessors, (1314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:44:08,411 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 146.0) internal successors, (1314), 9 states have internal predecessors, (1314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:44:08,411 INFO L175 Difference]: Start difference. First operand has 160 places, 164 transitions, 561 flow. Second operand 8 states and 1003 transitions. [2023-11-29 06:44:08,411 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 167 places, 195 transitions, 740 flow [2023-11-29 06:44:08,424 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 165 places, 195 transitions, 714 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-29 06:44:08,427 INFO L231 Difference]: Finished difference. Result has 168 places, 166 transitions, 569 flow [2023-11-29 06:44:08,428 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=146, PETRI_DIFFERENCE_MINUEND_FLOW=525, PETRI_DIFFERENCE_MINUEND_PLACES=158, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=163, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=154, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=569, PETRI_PLACES=168, PETRI_TRANSITIONS=166} [2023-11-29 06:44:08,428 INFO L281 CegarLoopForPetriNet]: 147 programPoint places, 21 predicate places. [2023-11-29 06:44:08,428 INFO L495 AbstractCegarLoop]: Abstraction has has 168 places, 166 transitions, 569 flow [2023-11-29 06:44:08,429 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 120.33333333333333) internal successors, (1083), 9 states have internal predecessors, (1083), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:44:08,429 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:44:08,429 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 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] [2023-11-29 06:44:08,435 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_140527c8-8106-4f08-860d-a429ab78858d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-29 06:44:08,630 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_140527c8-8106-4f08-860d-a429ab78858d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:44:08,630 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2023-11-29 06:44:08,630 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:44:08,631 INFO L85 PathProgramCache]: Analyzing trace with hash -1021943524, now seen corresponding path program 1 times [2023-11-29 06:44:08,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:44:08,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497785316] [2023-11-29 06:44:08,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:44:08,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:44:08,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:44:08,719 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:44:08,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:44:08,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497785316] [2023-11-29 06:44:08,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1497785316] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:44:08,720 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:44:08,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 06:44:08,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861179703] [2023-11-29 06:44:08,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:44:08,720 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 06:44:08,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:44:08,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 06:44:08,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 06:44:08,731 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 146 [2023-11-29 06:44:08,732 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 166 transitions, 569 flow. Second operand has 3 states, 3 states have (on average 131.66666666666666) internal successors, (395), 3 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:44:08,732 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 06:44:08,732 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 146 [2023-11-29 06:44:08,733 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 06:44:09,029 INFO L124 PetriNetUnfolderBase]: 117/1901 cut-off events. [2023-11-29 06:44:09,029 INFO L125 PetriNetUnfolderBase]: For 612/791 co-relation queries the response was YES. [2023-11-29 06:44:09,033 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3102 conditions, 1901 events. 117/1901 cut-off events. For 612/791 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 15789 event pairs, 43 based on Foata normal form. 24/1845 useless extension candidates. Maximal degree in co-relation 2449. Up to 144 conditions per place. [2023-11-29 06:44:09,036 INFO L140 encePairwiseOnDemand]: 140/146 looper letters, 12 selfloop transitions, 6 changer transitions 0/161 dead transitions. [2023-11-29 06:44:09,036 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 161 transitions, 556 flow [2023-11-29 06:44:09,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 06:44:09,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 06:44:09,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 411 transitions. [2023-11-29 06:44:09,038 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9383561643835616 [2023-11-29 06:44:09,039 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 411 transitions. [2023-11-29 06:44:09,039 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 411 transitions. [2023-11-29 06:44:09,039 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:44:09,039 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 411 transitions. [2023-11-29 06:44:09,040 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 137.0) internal successors, (411), 3 states have internal predecessors, (411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:44:09,041 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 146.0) internal successors, (584), 4 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:44:09,041 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 146.0) internal successors, (584), 4 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:44:09,041 INFO L175 Difference]: Start difference. First operand has 168 places, 166 transitions, 569 flow. Second operand 3 states and 411 transitions. [2023-11-29 06:44:09,041 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 170 places, 161 transitions, 556 flow [2023-11-29 06:44:09,045 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 167 places, 161 transitions, 546 flow, removed 2 selfloop flow, removed 3 redundant places. [2023-11-29 06:44:09,047 INFO L231 Difference]: Finished difference. Result has 167 places, 156 transitions, 491 flow [2023-11-29 06:44:09,048 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=146, PETRI_DIFFERENCE_MINUEND_FLOW=479, PETRI_DIFFERENCE_MINUEND_PLACES=165, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=156, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=150, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=491, PETRI_PLACES=167, PETRI_TRANSITIONS=156} [2023-11-29 06:44:09,048 INFO L281 CegarLoopForPetriNet]: 147 programPoint places, 20 predicate places. [2023-11-29 06:44:09,048 INFO L495 AbstractCegarLoop]: Abstraction has has 167 places, 156 transitions, 491 flow [2023-11-29 06:44:09,049 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 131.66666666666666) internal successors, (395), 3 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:44:09,049 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:44:09,049 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 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] [2023-11-29 06:44:09,049 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-11-29 06:44:09,049 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2023-11-29 06:44:09,049 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:44:09,050 INFO L85 PathProgramCache]: Analyzing trace with hash -1804091839, now seen corresponding path program 1 times [2023-11-29 06:44:09,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:44:09,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221876162] [2023-11-29 06:44:09,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:44:09,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:44:09,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:44:09,097 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2023-11-29 06:44:09,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:44:09,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221876162] [2023-11-29 06:44:09,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221876162] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:44:09,098 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:44:09,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 06:44:09,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161764872] [2023-11-29 06:44:09,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:44:09,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 06:44:09,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:44:09,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 06:44:09,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 06:44:09,115 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 146 [2023-11-29 06:44:09,116 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 156 transitions, 491 flow. Second operand has 3 states, 3 states have (on average 125.33333333333333) internal successors, (376), 3 states have internal predecessors, (376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:44:09,116 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 06:44:09,116 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 146 [2023-11-29 06:44:09,116 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 06:44:09,471 INFO L124 PetriNetUnfolderBase]: 203/2208 cut-off events. [2023-11-29 06:44:09,471 INFO L125 PetriNetUnfolderBase]: For 1389/1885 co-relation queries the response was YES. [2023-11-29 06:44:09,476 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3998 conditions, 2208 events. 203/2208 cut-off events. For 1389/1885 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 19534 event pairs, 134 based on Foata normal form. 4/2069 useless extension candidates. Maximal degree in co-relation 3287. Up to 435 conditions per place. [2023-11-29 06:44:09,479 INFO L140 encePairwiseOnDemand]: 141/146 looper letters, 25 selfloop transitions, 5 changer transitions 0/161 dead transitions. [2023-11-29 06:44:09,479 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 161 transitions, 573 flow [2023-11-29 06:44:09,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 06:44:09,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 06:44:09,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 395 transitions. [2023-11-29 06:44:09,481 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9018264840182648 [2023-11-29 06:44:09,482 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 395 transitions. [2023-11-29 06:44:09,482 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 395 transitions. [2023-11-29 06:44:09,482 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:44:09,482 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 395 transitions. [2023-11-29 06:44:09,483 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 131.66666666666666) internal successors, (395), 3 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:44:09,484 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 146.0) internal successors, (584), 4 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:44:09,484 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 146.0) internal successors, (584), 4 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:44:09,484 INFO L175 Difference]: Start difference. First operand has 167 places, 156 transitions, 491 flow. Second operand 3 states and 395 transitions. [2023-11-29 06:44:09,484 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 161 transitions, 573 flow [2023-11-29 06:44:09,488 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 168 places, 161 transitions, 567 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-29 06:44:09,491 INFO L231 Difference]: Finished difference. Result has 170 places, 159 transitions, 525 flow [2023-11-29 06:44:09,491 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=146, PETRI_DIFFERENCE_MINUEND_FLOW=485, PETRI_DIFFERENCE_MINUEND_PLACES=166, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=156, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=151, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=525, PETRI_PLACES=170, PETRI_TRANSITIONS=159} [2023-11-29 06:44:09,491 INFO L281 CegarLoopForPetriNet]: 147 programPoint places, 23 predicate places. [2023-11-29 06:44:09,491 INFO L495 AbstractCegarLoop]: Abstraction has has 170 places, 159 transitions, 525 flow [2023-11-29 06:44:09,492 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 125.33333333333333) internal successors, (376), 3 states have internal predecessors, (376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:44:09,492 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:44:09,492 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:44:09,492 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-11-29 06:44:09,493 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2023-11-29 06:44:09,493 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:44:09,493 INFO L85 PathProgramCache]: Analyzing trace with hash -1408652683, now seen corresponding path program 1 times [2023-11-29 06:44:09,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:44:09,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532662203] [2023-11-29 06:44:09,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:44:09,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:44:09,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 06:44:09,531 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 06:44:09,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 06:44:09,564 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 06:44:09,564 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-29 06:44:09,565 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 10 remaining) [2023-11-29 06:44:09,565 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (8 of 10 remaining) [2023-11-29 06:44:09,565 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (7 of 10 remaining) [2023-11-29 06:44:09,565 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (6 of 10 remaining) [2023-11-29 06:44:09,565 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (5 of 10 remaining) [2023-11-29 06:44:09,565 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (4 of 10 remaining) [2023-11-29 06:44:09,565 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (3 of 10 remaining) [2023-11-29 06:44:09,566 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (2 of 10 remaining) [2023-11-29 06:44:09,566 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 10 remaining) [2023-11-29 06:44:09,566 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 10 remaining) [2023-11-29 06:44:09,566 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-11-29 06:44:09,566 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:44:09,567 WARN L233 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-29 06:44:09,567 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2023-11-29 06:44:09,594 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-11-29 06:44:09,597 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 166 places, 164 transitions, 368 flow [2023-11-29 06:44:09,714 INFO L124 PetriNetUnfolderBase]: 43/880 cut-off events. [2023-11-29 06:44:09,714 INFO L125 PetriNetUnfolderBase]: For 48/48 co-relation queries the response was YES. [2023-11-29 06:44:09,716 INFO L83 FinitePrefix]: Finished finitePrefix Result has 931 conditions, 880 events. 43/880 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 3530 event pairs, 6 based on Foata normal form. 0/764 useless extension candidates. Maximal degree in co-relation 514. Up to 32 conditions per place. [2023-11-29 06:44:09,716 INFO L82 GeneralOperation]: Start removeDead. Operand has 166 places, 164 transitions, 368 flow [2023-11-29 06:44:09,719 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 166 places, 164 transitions, 368 flow [2023-11-29 06:44:09,720 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 06:44:09,720 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=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;@5f1ae0b7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 06:44:09,720 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2023-11-29 06:44:09,724 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-29 06:44:09,724 INFO L124 PetriNetUnfolderBase]: 3/52 cut-off events. [2023-11-29 06:44:09,724 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-29 06:44:09,724 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:44:09,724 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:44:09,724 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2023-11-29 06:44:09,725 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:44:09,725 INFO L85 PathProgramCache]: Analyzing trace with hash -1866504761, now seen corresponding path program 1 times [2023-11-29 06:44:09,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:44:09,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693626335] [2023-11-29 06:44:09,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:44:09,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:44:09,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:44:09,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:44:09,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:44:09,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693626335] [2023-11-29 06:44:09,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1693626335] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:44:09,899 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:44:09,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 06:44:09,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674653076] [2023-11-29 06:44:09,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:44:09,899 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 06:44:09,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:44:09,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 06:44:09,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 06:44:10,051 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 164 [2023-11-29 06:44:10,052 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 166 places, 164 transitions, 368 flow. Second operand has 6 states, 6 states have (on average 124.16666666666667) internal successors, (745), 6 states have internal predecessors, (745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:44:10,052 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 06:44:10,053 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 164 [2023-11-29 06:44:10,053 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 06:44:13,984 INFO L124 PetriNetUnfolderBase]: 8218/33148 cut-off events. [2023-11-29 06:44:13,985 INFO L125 PetriNetUnfolderBase]: For 1120/1120 co-relation queries the response was YES. [2023-11-29 06:44:14,054 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45783 conditions, 33148 events. 8218/33148 cut-off events. For 1120/1120 co-relation queries the response was YES. Maximal size of possible extension queue 877. Compared 424854 event pairs, 7076 based on Foata normal form. 304/30910 useless extension candidates. Maximal degree in co-relation 14908. Up to 10644 conditions per place. [2023-11-29 06:44:14,140 INFO L140 encePairwiseOnDemand]: 145/164 looper letters, 42 selfloop transitions, 13 changer transitions 1/178 dead transitions. [2023-11-29 06:44:14,140 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 178 transitions, 506 flow [2023-11-29 06:44:14,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 06:44:14,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 06:44:14,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 801 transitions. [2023-11-29 06:44:14,142 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8140243902439024 [2023-11-29 06:44:14,142 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 801 transitions. [2023-11-29 06:44:14,142 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 801 transitions. [2023-11-29 06:44:14,143 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:44:14,143 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 801 transitions. [2023-11-29 06:44:14,145 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 133.5) internal successors, (801), 6 states have internal predecessors, (801), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:44:14,146 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 164.0) internal successors, (1148), 7 states have internal predecessors, (1148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:44:14,147 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 164.0) internal successors, (1148), 7 states have internal predecessors, (1148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:44:14,147 INFO L175 Difference]: Start difference. First operand has 166 places, 164 transitions, 368 flow. Second operand 6 states and 801 transitions. [2023-11-29 06:44:14,147 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 168 places, 178 transitions, 506 flow [2023-11-29 06:44:14,149 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 168 places, 178 transitions, 506 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-29 06:44:14,152 INFO L231 Difference]: Finished difference. Result has 172 places, 169 transitions, 450 flow [2023-11-29 06:44:14,152 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=356, PETRI_DIFFERENCE_MINUEND_PLACES=163, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=158, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=145, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=450, PETRI_PLACES=172, PETRI_TRANSITIONS=169} [2023-11-29 06:44:14,152 INFO L281 CegarLoopForPetriNet]: 166 programPoint places, 6 predicate places. [2023-11-29 06:44:14,152 INFO L495 AbstractCegarLoop]: Abstraction has has 172 places, 169 transitions, 450 flow [2023-11-29 06:44:14,153 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 124.16666666666667) internal successors, (745), 6 states have internal predecessors, (745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:44:14,153 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:44:14,153 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:44:14,153 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-11-29 06:44:14,153 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2023-11-29 06:44:14,153 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:44:14,154 INFO L85 PathProgramCache]: Analyzing trace with hash 1755544937, now seen corresponding path program 1 times [2023-11-29 06:44:14,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:44:14,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897886733] [2023-11-29 06:44:14,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:44:14,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:44:14,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:44:14,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:44:14,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:44:14,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897886733] [2023-11-29 06:44:14,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1897886733] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:44:14,179 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:44:14,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 06:44:14,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235141174] [2023-11-29 06:44:14,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:44:14,179 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 06:44:14,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:44:14,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 06:44:14,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 06:44:14,197 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 164 [2023-11-29 06:44:14,197 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 172 places, 169 transitions, 450 flow. Second operand has 3 states, 3 states have (on average 138.66666666666666) internal successors, (416), 3 states have internal predecessors, (416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:44:14,197 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 06:44:14,198 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 164 [2023-11-29 06:44:14,198 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 06:44:17,872 INFO L124 PetriNetUnfolderBase]: 7860/26990 cut-off events. [2023-11-29 06:44:17,872 INFO L125 PetriNetUnfolderBase]: For 2988/5238 co-relation queries the response was YES. [2023-11-29 06:44:17,964 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41265 conditions, 26990 events. 7860/26990 cut-off events. For 2988/5238 co-relation queries the response was YES. Maximal size of possible extension queue 823. Compared 324875 event pairs, 4292 based on Foata normal form. 0/24570 useless extension candidates. Maximal degree in co-relation 38038. Up to 7653 conditions per place. [2023-11-29 06:44:18,064 INFO L140 encePairwiseOnDemand]: 157/164 looper letters, 30 selfloop transitions, 6 changer transitions 4/182 dead transitions. [2023-11-29 06:44:18,064 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 173 places, 182 transitions, 548 flow [2023-11-29 06:44:18,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 06:44:18,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 06:44:18,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 451 transitions. [2023-11-29 06:44:18,066 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9166666666666666 [2023-11-29 06:44:18,066 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 451 transitions. [2023-11-29 06:44:18,066 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 451 transitions. [2023-11-29 06:44:18,067 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:44:18,067 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 451 transitions. [2023-11-29 06:44:18,068 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 150.33333333333334) internal successors, (451), 3 states have internal predecessors, (451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:44:18,069 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 164.0) internal successors, (656), 4 states have internal predecessors, (656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:44:18,069 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 164.0) internal successors, (656), 4 states have internal predecessors, (656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:44:18,070 INFO L175 Difference]: Start difference. First operand has 172 places, 169 transitions, 450 flow. Second operand 3 states and 451 transitions. [2023-11-29 06:44:18,070 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 173 places, 182 transitions, 548 flow [2023-11-29 06:44:18,275 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 172 places, 182 transitions, 544 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-29 06:44:18,278 INFO L231 Difference]: Finished difference. Result has 174 places, 170 transitions, 470 flow [2023-11-29 06:44:18,278 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=446, PETRI_DIFFERENCE_MINUEND_PLACES=170, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=169, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=163, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=470, PETRI_PLACES=174, PETRI_TRANSITIONS=170} [2023-11-29 06:44:18,278 INFO L281 CegarLoopForPetriNet]: 166 programPoint places, 8 predicate places. [2023-11-29 06:44:18,278 INFO L495 AbstractCegarLoop]: Abstraction has has 174 places, 170 transitions, 470 flow [2023-11-29 06:44:18,279 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 138.66666666666666) internal successors, (416), 3 states have internal predecessors, (416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:44:18,279 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:44:18,279 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:44:18,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-11-29 06:44:18,279 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2023-11-29 06:44:18,279 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:44:18,279 INFO L85 PathProgramCache]: Analyzing trace with hash -897161679, now seen corresponding path program 1 times [2023-11-29 06:44:18,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:44:18,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595067763] [2023-11-29 06:44:18,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:44:18,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:44:18,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:44:18,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:44:18,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:44:18,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595067763] [2023-11-29 06:44:18,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1595067763] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:44:18,343 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:44:18,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 06:44:18,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314106913] [2023-11-29 06:44:18,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:44:18,344 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 06:44:18,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:44:18,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 06:44:18,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 06:44:18,399 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 164 [2023-11-29 06:44:18,400 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 174 places, 170 transitions, 470 flow. Second operand has 5 states, 5 states have (on average 135.4) internal successors, (677), 5 states have internal predecessors, (677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:44:18,400 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 06:44:18,400 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 164 [2023-11-29 06:44:18,400 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 06:44:23,126 INFO L124 PetriNetUnfolderBase]: 9364/35483 cut-off events. [2023-11-29 06:44:23,126 INFO L125 PetriNetUnfolderBase]: For 2549/2588 co-relation queries the response was YES. [2023-11-29 06:44:23,257 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53431 conditions, 35483 events. 9364/35483 cut-off events. For 2549/2588 co-relation queries the response was YES. Maximal size of possible extension queue 844. Compared 453086 event pairs, 7546 based on Foata normal form. 1/31439 useless extension candidates. Maximal degree in co-relation 33246. Up to 10765 conditions per place. [2023-11-29 06:44:23,366 INFO L140 encePairwiseOnDemand]: 157/164 looper letters, 28 selfloop transitions, 2 changer transitions 4/173 dead transitions. [2023-11-29 06:44:23,366 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 179 places, 173 transitions, 530 flow [2023-11-29 06:44:23,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 06:44:23,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 06:44:23,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 839 transitions. [2023-11-29 06:44:23,369 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8526422764227642 [2023-11-29 06:44:23,369 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 839 transitions. [2023-11-29 06:44:23,369 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 839 transitions. [2023-11-29 06:44:23,370 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:44:23,370 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 839 transitions. [2023-11-29 06:44:23,371 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 139.83333333333334) internal successors, (839), 6 states have internal predecessors, (839), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:44:23,372 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 164.0) internal successors, (1148), 7 states have internal predecessors, (1148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:44:23,373 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 164.0) internal successors, (1148), 7 states have internal predecessors, (1148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:44:23,373 INFO L175 Difference]: Start difference. First operand has 174 places, 170 transitions, 470 flow. Second operand 6 states and 839 transitions. [2023-11-29 06:44:23,373 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 179 places, 173 transitions, 530 flow [2023-11-29 06:44:23,427 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 177 places, 173 transitions, 504 flow, removed 7 selfloop flow, removed 2 redundant places. [2023-11-29 06:44:23,428 INFO L231 Difference]: Finished difference. Result has 181 places, 167 transitions, 442 flow [2023-11-29 06:44:23,429 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=422, PETRI_DIFFERENCE_MINUEND_PLACES=172, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=166, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=164, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=442, PETRI_PLACES=181, PETRI_TRANSITIONS=167} [2023-11-29 06:44:23,429 INFO L281 CegarLoopForPetriNet]: 166 programPoint places, 15 predicate places. [2023-11-29 06:44:23,429 INFO L495 AbstractCegarLoop]: Abstraction has has 181 places, 167 transitions, 442 flow [2023-11-29 06:44:23,429 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 135.4) internal successors, (677), 5 states have internal predecessors, (677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:44:23,429 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:44:23,429 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:44:23,430 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-11-29 06:44:23,430 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2023-11-29 06:44:23,430 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:44:23,430 INFO L85 PathProgramCache]: Analyzing trace with hash -138301050, now seen corresponding path program 1 times [2023-11-29 06:44:23,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:44:23,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742413888] [2023-11-29 06:44:23,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:44:23,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:44:23,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:44:23,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:44:23,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:44:23,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742413888] [2023-11-29 06:44:23,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1742413888] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:44:23,454 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:44:23,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 06:44:23,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375035077] [2023-11-29 06:44:23,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:44:23,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 06:44:23,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:44:23,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 06:44:23,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 06:44:23,474 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 164 [2023-11-29 06:44:23,475 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 181 places, 167 transitions, 442 flow. Second operand has 3 states, 3 states have (on average 137.66666666666666) internal successors, (413), 3 states have internal predecessors, (413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:44:23,475 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 06:44:23,475 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 164 [2023-11-29 06:44:23,475 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 06:44:30,328 INFO L124 PetriNetUnfolderBase]: 13502/50092 cut-off events. [2023-11-29 06:44:30,328 INFO L125 PetriNetUnfolderBase]: For 10845/23909 co-relation queries the response was YES. [2023-11-29 06:44:30,521 INFO L83 FinitePrefix]: Finished finitePrefix Result has 81237 conditions, 50092 events. 13502/50092 cut-off events. For 10845/23909 co-relation queries the response was YES. Maximal size of possible extension queue 1582. Compared 687306 event pairs, 7306 based on Foata normal form. 34/44692 useless extension candidates. Maximal degree in co-relation 81165. Up to 15734 conditions per place. [2023-11-29 06:44:30,691 INFO L140 encePairwiseOnDemand]: 156/164 looper letters, 39 selfloop transitions, 11 changer transitions 0/188 dead transitions. [2023-11-29 06:44:30,691 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 188 transitions, 628 flow [2023-11-29 06:44:30,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 06:44:30,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 06:44:30,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 452 transitions. [2023-11-29 06:44:30,692 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9186991869918699 [2023-11-29 06:44:30,692 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 452 transitions. [2023-11-29 06:44:30,692 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 452 transitions. [2023-11-29 06:44:30,692 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:44:30,692 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 452 transitions. [2023-11-29 06:44:30,693 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 150.66666666666666) internal successors, (452), 3 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:44:30,694 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 164.0) internal successors, (656), 4 states have internal predecessors, (656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:44:30,694 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 164.0) internal successors, (656), 4 states have internal predecessors, (656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:44:30,694 INFO L175 Difference]: Start difference. First operand has 181 places, 167 transitions, 442 flow. Second operand 3 states and 452 transitions. [2023-11-29 06:44:30,694 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 180 places, 188 transitions, 628 flow [2023-11-29 06:44:30,749 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 176 places, 188 transitions, 616 flow, removed 5 selfloop flow, removed 4 redundant places. [2023-11-29 06:44:30,752 INFO L231 Difference]: Finished difference. Result has 178 places, 176 transitions, 526 flow [2023-11-29 06:44:30,752 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=430, PETRI_DIFFERENCE_MINUEND_PLACES=174, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=167, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=156, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=526, PETRI_PLACES=178, PETRI_TRANSITIONS=176} [2023-11-29 06:44:30,752 INFO L281 CegarLoopForPetriNet]: 166 programPoint places, 12 predicate places. [2023-11-29 06:44:30,753 INFO L495 AbstractCegarLoop]: Abstraction has has 178 places, 176 transitions, 526 flow [2023-11-29 06:44:30,753 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 137.66666666666666) internal successors, (413), 3 states have internal predecessors, (413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:44:30,753 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:44:30,753 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:44:30,753 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-11-29 06:44:30,753 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2023-11-29 06:44:30,753 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:44:30,754 INFO L85 PathProgramCache]: Analyzing trace with hash 1224022292, now seen corresponding path program 1 times [2023-11-29 06:44:30,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:44:30,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326465205] [2023-11-29 06:44:30,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:44:30,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:44:30,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:44:31,030 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 06:44:31,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:44:31,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326465205] [2023-11-29 06:44:31,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [326465205] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:44:31,031 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:44:31,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 06:44:31,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342627938] [2023-11-29 06:44:31,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:44:31,032 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 06:44:31,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:44:31,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 06:44:31,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 06:44:31,233 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 164 [2023-11-29 06:44:31,234 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 178 places, 176 transitions, 526 flow. Second operand has 6 states, 6 states have (on average 133.5) internal successors, (801), 6 states have internal predecessors, (801), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:44:31,234 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 06:44:31,234 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 164 [2023-11-29 06:44:31,234 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 06:44:36,884 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([695] L1023-4-->L1023-5: Formula: (= |v_#race~data~0_1| |v_threadThread3of4ForFork0_#t~nondet5_3|) InVars {threadThread3of4ForFork0_#t~nondet5=|v_threadThread3of4ForFork0_#t~nondet5_3|} OutVars{#race~data~0=|v_#race~data~0_1|, threadThread3of4ForFork0_#t~nondet5=|v_threadThread3of4ForFork0_#t~nondet5_3|} AuxVars[] AssignedVars[#race~data~0][174], [threadThread1of4ForFork0InUse, threadThread2of4ForFork0InUse, threadThread3of4ForFork0InUse, Black: 188#(= |ULTIMATE.start_main_~i~0#1| 0), threadThread4of4ForFork0NotInUse, Black: 200#(= |#race~data~0| |threadThread1of4ForFork0_#t~nondet5|), 151#L1024true, 52#L1022-3true, 69#L1023-5true, Black: 171#(= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0), Black: 172#(and (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ |ULTIMATE.start_main_~#tids~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0)), Black: 169#true, Black: 173#(and (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ |ULTIMATE.start_main_~#tids~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ 2 |ULTIMATE.start_main_~#tids~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0)), Black: 182#(= |#race~data~0| 0), 198#true, 22#L1038-2true, 204#true]) [2023-11-29 06:44:36,885 INFO L294 olderBase$Statistics]: this new event has 165 ancestors and is cut-off event [2023-11-29 06:44:36,885 INFO L297 olderBase$Statistics]: existing Event has 114 ancestors and is cut-off event [2023-11-29 06:44:36,885 INFO L297 olderBase$Statistics]: existing Event has 114 ancestors and is cut-off event [2023-11-29 06:44:36,885 INFO L297 olderBase$Statistics]: existing Event has 165 ancestors and is cut-off event [2023-11-29 06:44:37,209 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([743] L1023-4-->L1023-5: Formula: (= |v_threadThread4of4ForFork0_#t~nondet5_3| |v_#race~data~0_1|) InVars {threadThread4of4ForFork0_#t~nondet5=|v_threadThread4of4ForFork0_#t~nondet5_3|} OutVars{threadThread4of4ForFork0_#t~nondet5=|v_threadThread4of4ForFork0_#t~nondet5_3|, #race~data~0=|v_#race~data~0_1|} AuxVars[] AssignedVars[#race~data~0][205], [threadThread1of4ForFork0InUse, threadThread2of4ForFork0NotInUse, threadThread3of4ForFork0InUse, Black: 188#(= |ULTIMATE.start_main_~i~0#1| 0), threadThread4of4ForFork0InUse, Black: 200#(= |#race~data~0| |threadThread1of4ForFork0_#t~nondet5|), 69#L1023-5true, Black: 171#(= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0), Black: 172#(and (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ |ULTIMATE.start_main_~#tids~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0)), 115#L1023-6true, Black: 169#true, 27#L1023-5true, Black: 173#(and (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ |ULTIMATE.start_main_~#tids~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ 2 |ULTIMATE.start_main_~#tids~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0)), Black: 182#(= |#race~data~0| 0), 198#true, 22#L1038-2true, 204#true]) [2023-11-29 06:44:37,209 INFO L294 olderBase$Statistics]: this new event has 169 ancestors and is cut-off event [2023-11-29 06:44:37,209 INFO L297 olderBase$Statistics]: existing Event has 169 ancestors and is cut-off event [2023-11-29 06:44:37,209 INFO L297 olderBase$Statistics]: existing Event has 169 ancestors and is cut-off event [2023-11-29 06:44:37,209 INFO L297 olderBase$Statistics]: existing Event has 169 ancestors and is cut-off event [2023-11-29 06:44:37,456 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([695] L1023-4-->L1023-5: Formula: (= |v_#race~data~0_1| |v_threadThread3of4ForFork0_#t~nondet5_3|) InVars {threadThread3of4ForFork0_#t~nondet5=|v_threadThread3of4ForFork0_#t~nondet5_3|} OutVars{#race~data~0=|v_#race~data~0_1|, threadThread3of4ForFork0_#t~nondet5=|v_threadThread3of4ForFork0_#t~nondet5_3|} AuxVars[] AssignedVars[#race~data~0][174], [130#L1023-5true, threadThread1of4ForFork0InUse, threadThread2of4ForFork0InUse, threadThread3of4ForFork0InUse, Black: 188#(= |ULTIMATE.start_main_~i~0#1| 0), threadThread4of4ForFork0NotInUse, Black: 200#(= |#race~data~0| |threadThread1of4ForFork0_#t~nondet5|), 69#L1023-5true, Black: 171#(= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0), Black: 172#(and (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ |ULTIMATE.start_main_~#tids~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0)), Black: 169#true, Black: 173#(and (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ |ULTIMATE.start_main_~#tids~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ 2 |ULTIMATE.start_main_~#tids~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0)), Black: 182#(= |#race~data~0| 0), 198#true, 22#L1038-2true, 204#true, 23#threadErr0ASSERT_VIOLATIONDATA_RACEtrue]) [2023-11-29 06:44:37,456 INFO L294 olderBase$Statistics]: this new event has 169 ancestors and is cut-off event [2023-11-29 06:44:37,457 INFO L297 olderBase$Statistics]: existing Event has 118 ancestors and is cut-off event [2023-11-29 06:44:37,457 INFO L297 olderBase$Statistics]: existing Event has 118 ancestors and is cut-off event [2023-11-29 06:44:37,457 INFO L297 olderBase$Statistics]: existing Event has 169 ancestors and is cut-off event [2023-11-29 06:44:37,626 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([743] L1023-4-->L1023-5: Formula: (= |v_threadThread4of4ForFork0_#t~nondet5_3| |v_#race~data~0_1|) InVars {threadThread4of4ForFork0_#t~nondet5=|v_threadThread4of4ForFork0_#t~nondet5_3|} OutVars{threadThread4of4ForFork0_#t~nondet5=|v_threadThread4of4ForFork0_#t~nondet5_3|, #race~data~0=|v_#race~data~0_1|} AuxVars[] AssignedVars[#race~data~0][199], [threadThread1of4ForFork0InUse, threadThread2of4ForFork0NotInUse, threadThread3of4ForFork0InUse, Black: 188#(= |ULTIMATE.start_main_~i~0#1| 0), threadThread4of4ForFork0InUse, Black: 200#(= |#race~data~0| |threadThread1of4ForFork0_#t~nondet5|), 151#L1024true, 69#L1023-5true, Black: 171#(= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0), Black: 172#(and (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ |ULTIMATE.start_main_~#tids~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0)), 27#L1023-5true, Black: 169#true, Black: 173#(and (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ |ULTIMATE.start_main_~#tids~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ 2 |ULTIMATE.start_main_~#tids~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0)), Black: 182#(= |#race~data~0| 0), 22#L1038-2true, 198#true, 204#true]) [2023-11-29 06:44:37,626 INFO L294 olderBase$Statistics]: this new event has 171 ancestors and is cut-off event [2023-11-29 06:44:37,626 INFO L297 olderBase$Statistics]: existing Event has 171 ancestors and is cut-off event [2023-11-29 06:44:37,626 INFO L297 olderBase$Statistics]: existing Event has 171 ancestors and is cut-off event [2023-11-29 06:44:37,626 INFO L297 olderBase$Statistics]: existing Event has 171 ancestors and is cut-off event [2023-11-29 06:44:38,891 INFO L124 PetriNetUnfolderBase]: 18745/55217 cut-off events. [2023-11-29 06:44:38,891 INFO L125 PetriNetUnfolderBase]: For 8524/10639 co-relation queries the response was YES. [2023-11-29 06:44:39,287 INFO L83 FinitePrefix]: Finished finitePrefix Result has 95610 conditions, 55217 events. 18745/55217 cut-off events. For 8524/10639 co-relation queries the response was YES. Maximal size of possible extension queue 1669. Compared 713312 event pairs, 8643 based on Foata normal form. 113/48949 useless extension candidates. Maximal degree in co-relation 80258. Up to 11736 conditions per place. [2023-11-29 06:44:39,480 INFO L140 encePairwiseOnDemand]: 158/164 looper letters, 55 selfloop transitions, 5 changer transitions 0/207 dead transitions. [2023-11-29 06:44:39,480 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 182 places, 207 transitions, 708 flow [2023-11-29 06:44:39,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 06:44:39,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 06:44:39,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 853 transitions. [2023-11-29 06:44:39,482 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.866869918699187 [2023-11-29 06:44:39,482 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 853 transitions. [2023-11-29 06:44:39,482 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 853 transitions. [2023-11-29 06:44:39,482 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:44:39,482 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 853 transitions. [2023-11-29 06:44:39,483 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 142.16666666666666) internal successors, (853), 6 states have internal predecessors, (853), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:44:39,484 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 164.0) internal successors, (1148), 7 states have internal predecessors, (1148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:44:39,484 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 164.0) internal successors, (1148), 7 states have internal predecessors, (1148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:44:39,484 INFO L175 Difference]: Start difference. First operand has 178 places, 176 transitions, 526 flow. Second operand 6 states and 853 transitions. [2023-11-29 06:44:39,484 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 182 places, 207 transitions, 708 flow [2023-11-29 06:44:39,573 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 180 places, 207 transitions, 686 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-29 06:44:39,575 INFO L231 Difference]: Finished difference. Result has 180 places, 175 transitions, 512 flow [2023-11-29 06:44:39,575 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=502, PETRI_DIFFERENCE_MINUEND_PLACES=175, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=175, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=170, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=512, PETRI_PLACES=180, PETRI_TRANSITIONS=175} [2023-11-29 06:44:39,575 INFO L281 CegarLoopForPetriNet]: 166 programPoint places, 14 predicate places. [2023-11-29 06:44:39,575 INFO L495 AbstractCegarLoop]: Abstraction has has 180 places, 175 transitions, 512 flow [2023-11-29 06:44:39,576 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 133.5) internal successors, (801), 6 states have internal predecessors, (801), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:44:39,576 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:44:39,576 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 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] [2023-11-29 06:44:39,576 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-11-29 06:44:39,576 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2023-11-29 06:44:39,576 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:44:39,576 INFO L85 PathProgramCache]: Analyzing trace with hash -1992055784, now seen corresponding path program 1 times [2023-11-29 06:44:39,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:44:39,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68658630] [2023-11-29 06:44:39,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:44:39,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:44:39,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:44:39,612 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-11-29 06:44:39,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:44:39,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68658630] [2023-11-29 06:44:39,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [68658630] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:44:39,613 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:44:39,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 06:44:39,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158623988] [2023-11-29 06:44:39,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:44:39,614 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 06:44:39,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:44:39,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 06:44:39,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 06:44:39,636 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 164 [2023-11-29 06:44:39,636 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 180 places, 175 transitions, 512 flow. Second operand has 3 states, 3 states have (on average 138.0) internal successors, (414), 3 states have internal predecessors, (414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:44:39,637 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 06:44:39,637 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 164 [2023-11-29 06:44:39,637 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 06:44:44,587 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([627] L1038-->L1038-1: Formula: (= |v_#race~data~0_6| 0) InVars {} OutVars{#race~data~0=|v_#race~data~0_6|} AuxVars[] AssignedVars[#race~data~0][134], [threadThread1of4ForFork0InUse, 30#L1023-6true, threadThread2of4ForFork0InUse, threadThread3of4ForFork0NotInUse, Black: 188#(= |ULTIMATE.start_main_~i~0#1| 0), threadThread4of4ForFork0NotInUse, 137#L1038-1true, Black: 200#(= |#race~data~0| |threadThread1of4ForFork0_#t~nondet5|), 211#true, Black: 171#(= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0), Black: 172#(and (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ |ULTIMATE.start_main_~#tids~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0)), 115#L1023-6true, Black: 169#true, Black: 173#(and (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ |ULTIMATE.start_main_~#tids~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ 2 |ULTIMATE.start_main_~#tids~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0)), Black: 180#true, 204#true]) [2023-11-29 06:44:44,587 INFO L294 olderBase$Statistics]: this new event has 144 ancestors and is cut-off event [2023-11-29 06:44:44,587 INFO L297 olderBase$Statistics]: existing Event has 144 ancestors and is cut-off event [2023-11-29 06:44:44,587 INFO L297 olderBase$Statistics]: existing Event has 93 ancestors and is cut-off event [2023-11-29 06:44:44,587 INFO L297 olderBase$Statistics]: existing Event has 93 ancestors and is cut-off event [2023-11-29 06:44:45,102 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([743] L1023-4-->L1023-5: Formula: (= |v_threadThread4of4ForFork0_#t~nondet5_3| |v_#race~data~0_1|) InVars {threadThread4of4ForFork0_#t~nondet5=|v_threadThread4of4ForFork0_#t~nondet5_3|} OutVars{threadThread4of4ForFork0_#t~nondet5=|v_threadThread4of4ForFork0_#t~nondet5_3|, #race~data~0=|v_#race~data~0_1|} AuxVars[] AssignedVars[#race~data~0][192], [30#L1023-6true, threadThread1of4ForFork0InUse, threadThread2of4ForFork0InUse, 44#ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACEtrue, Black: 188#(= |ULTIMATE.start_main_~i~0#1| 0), threadThread3of4ForFork0InUse, threadThread4of4ForFork0InUse, Black: 200#(= |#race~data~0| |threadThread1of4ForFork0_#t~nondet5|), 69#L1023-5true, Black: 171#(= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0), 211#true, 115#L1023-6true, Black: 172#(and (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ |ULTIMATE.start_main_~#tids~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0)), Black: 169#true, 27#L1023-5true, Black: 173#(and (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ |ULTIMATE.start_main_~#tids~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ 2 |ULTIMATE.start_main_~#tids~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0)), Black: 182#(= |#race~data~0| 0), 204#true]) [2023-11-29 06:44:45,103 INFO L294 olderBase$Statistics]: this new event has 144 ancestors and is cut-off event [2023-11-29 06:44:45,103 INFO L297 olderBase$Statistics]: existing Event has 144 ancestors and is cut-off event [2023-11-29 06:44:45,103 INFO L297 olderBase$Statistics]: existing Event has 144 ancestors and is cut-off event [2023-11-29 06:44:45,103 INFO L297 olderBase$Statistics]: existing Event has 144 ancestors and is cut-off event [2023-11-29 06:44:45,531 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([743] L1023-4-->L1023-5: Formula: (= |v_threadThread4of4ForFork0_#t~nondet5_3| |v_#race~data~0_1|) InVars {threadThread4of4ForFork0_#t~nondet5=|v_threadThread4of4ForFork0_#t~nondet5_3|} OutVars{threadThread4of4ForFork0_#t~nondet5=|v_threadThread4of4ForFork0_#t~nondet5_3|, #race~data~0=|v_#race~data~0_1|} AuxVars[] AssignedVars[#race~data~0][181], [threadThread1of4ForFork0InUse, 30#L1023-6true, threadThread2of4ForFork0InUse, Black: 188#(= |ULTIMATE.start_main_~i~0#1| 0), threadThread3of4ForFork0InUse, 44#ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACEtrue, threadThread4of4ForFork0InUse, Black: 200#(= |#race~data~0| |threadThread1of4ForFork0_#t~nondet5|), 151#L1024true, 69#L1023-5true, Black: 171#(= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0), 211#true, Black: 172#(and (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ |ULTIMATE.start_main_~#tids~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0)), Black: 169#true, 27#L1023-5true, Black: 173#(and (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ |ULTIMATE.start_main_~#tids~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ 2 |ULTIMATE.start_main_~#tids~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0)), Black: 182#(= |#race~data~0| 0), 204#true]) [2023-11-29 06:44:45,531 INFO L294 olderBase$Statistics]: this new event has 146 ancestors and is cut-off event [2023-11-29 06:44:45,531 INFO L297 olderBase$Statistics]: existing Event has 146 ancestors and is cut-off event [2023-11-29 06:44:45,531 INFO L297 olderBase$Statistics]: existing Event has 146 ancestors and is cut-off event [2023-11-29 06:44:45,531 INFO L297 olderBase$Statistics]: existing Event has 146 ancestors and is cut-off event [2023-11-29 06:44:45,579 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([695] L1023-4-->L1023-5: Formula: (= |v_#race~data~0_1| |v_threadThread3of4ForFork0_#t~nondet5_3|) InVars {threadThread3of4ForFork0_#t~nondet5=|v_threadThread3of4ForFork0_#t~nondet5_3|} OutVars{#race~data~0=|v_#race~data~0_1|, threadThread3of4ForFork0_#t~nondet5=|v_threadThread3of4ForFork0_#t~nondet5_3|} AuxVars[] AssignedVars[#race~data~0][183], [threadThread1of4ForFork0InUse, threadThread2of4ForFork0InUse, Black: 188#(= |ULTIMATE.start_main_~i~0#1| 0), threadThread3of4ForFork0InUse, threadThread4of4ForFork0InUse, Black: 200#(= |#race~data~0| |threadThread1of4ForFork0_#t~nondet5|), 136#L1024-3true, Black: 171#(= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0), 69#L1023-5true, 211#true, Black: 172#(and (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ |ULTIMATE.start_main_~#tids~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0)), 27#L1023-5true, Black: 169#true, Black: 173#(and (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ |ULTIMATE.start_main_~#tids~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ 2 |ULTIMATE.start_main_~#tids~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0)), Black: 182#(= |#race~data~0| 0), 22#L1038-2true, 204#true, 23#threadErr0ASSERT_VIOLATIONDATA_RACEtrue]) [2023-11-29 06:44:45,579 INFO L294 olderBase$Statistics]: this new event has 147 ancestors and is cut-off event [2023-11-29 06:44:45,579 INFO L297 olderBase$Statistics]: existing Event has 147 ancestors and is cut-off event [2023-11-29 06:44:45,579 INFO L297 olderBase$Statistics]: existing Event has 147 ancestors and is cut-off event [2023-11-29 06:44:45,579 INFO L297 olderBase$Statistics]: existing Event has 147 ancestors and is cut-off event [2023-11-29 06:44:45,732 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([743] L1023-4-->L1023-5: Formula: (= |v_threadThread4of4ForFork0_#t~nondet5_3| |v_#race~data~0_1|) InVars {threadThread4of4ForFork0_#t~nondet5=|v_threadThread4of4ForFork0_#t~nondet5_3|} OutVars{threadThread4of4ForFork0_#t~nondet5=|v_threadThread4of4ForFork0_#t~nondet5_3|, #race~data~0=|v_#race~data~0_1|} AuxVars[] AssignedVars[#race~data~0][192], [30#L1023-6true, threadThread1of4ForFork0InUse, threadThread2of4ForFork0InUse, 44#ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACEtrue, Black: 188#(= |ULTIMATE.start_main_~i~0#1| 0), threadThread3of4ForFork0InUse, threadThread4of4ForFork0InUse, Black: 200#(= |#race~data~0| |threadThread1of4ForFork0_#t~nondet5|), 95#L1024-3true, 211#true, Black: 171#(= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0), 115#L1023-6true, Black: 172#(and (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ |ULTIMATE.start_main_~#tids~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0)), 27#L1023-5true, Black: 169#true, Black: 173#(and (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ |ULTIMATE.start_main_~#tids~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ 2 |ULTIMATE.start_main_~#tids~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0)), Black: 182#(= |#race~data~0| 0), 204#true]) [2023-11-29 06:44:45,732 INFO L294 olderBase$Statistics]: this new event has 148 ancestors and is cut-off event [2023-11-29 06:44:45,732 INFO L297 olderBase$Statistics]: existing Event has 148 ancestors and is cut-off event [2023-11-29 06:44:45,732 INFO L297 olderBase$Statistics]: existing Event has 148 ancestors and is cut-off event [2023-11-29 06:44:45,733 INFO L297 olderBase$Statistics]: existing Event has 148 ancestors and is cut-off event [2023-11-29 06:44:46,294 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([695] L1023-4-->L1023-5: Formula: (= |v_#race~data~0_1| |v_threadThread3of4ForFork0_#t~nondet5_3|) InVars {threadThread3of4ForFork0_#t~nondet5=|v_threadThread3of4ForFork0_#t~nondet5_3|} OutVars{#race~data~0=|v_#race~data~0_1|, threadThread3of4ForFork0_#t~nondet5=|v_threadThread3of4ForFork0_#t~nondet5_3|} AuxVars[] AssignedVars[#race~data~0][183], [threadThread1of4ForFork0InUse, threadThread2of4ForFork0InUse, Black: 188#(= |ULTIMATE.start_main_~i~0#1| 0), threadThread3of4ForFork0InUse, threadThread4of4ForFork0InUse, Black: 200#(= |#race~data~0| |threadThread1of4ForFork0_#t~nondet5|), 136#L1024-3true, Black: 171#(= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0), 69#L1023-5true, 211#true, Black: 172#(and (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ |ULTIMATE.start_main_~#tids~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0)), Black: 169#true, Black: 173#(and (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ |ULTIMATE.start_main_~#tids~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ 2 |ULTIMATE.start_main_~#tids~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0)), Black: 182#(= |#race~data~0| 0), 22#L1038-2true, 204#true, 92#L1024-3true, 23#threadErr0ASSERT_VIOLATIONDATA_RACEtrue]) [2023-11-29 06:44:46,295 INFO L294 olderBase$Statistics]: this new event has 151 ancestors and is cut-off event [2023-11-29 06:44:46,295 INFO L297 olderBase$Statistics]: existing Event has 151 ancestors and is cut-off event [2023-11-29 06:44:46,295 INFO L297 olderBase$Statistics]: existing Event has 151 ancestors and is cut-off event [2023-11-29 06:44:46,295 INFO L297 olderBase$Statistics]: existing Event has 151 ancestors and is cut-off event [2023-11-29 06:44:46,384 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([743] L1023-4-->L1023-5: Formula: (= |v_threadThread4of4ForFork0_#t~nondet5_3| |v_#race~data~0_1|) InVars {threadThread4of4ForFork0_#t~nondet5=|v_threadThread4of4ForFork0_#t~nondet5_3|} OutVars{threadThread4of4ForFork0_#t~nondet5=|v_threadThread4of4ForFork0_#t~nondet5_3|, #race~data~0=|v_#race~data~0_1|} AuxVars[] AssignedVars[#race~data~0][181], [threadThread1of4ForFork0InUse, 30#L1023-6true, threadThread2of4ForFork0InUse, Black: 188#(= |ULTIMATE.start_main_~i~0#1| 0), threadThread3of4ForFork0InUse, 44#ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACEtrue, threadThread4of4ForFork0InUse, Black: 200#(= |#race~data~0| |threadThread1of4ForFork0_#t~nondet5|), 151#L1024true, 95#L1024-3true, 211#true, Black: 171#(= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0), Black: 172#(and (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ |ULTIMATE.start_main_~#tids~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0)), 27#L1023-5true, Black: 169#true, Black: 173#(and (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ |ULTIMATE.start_main_~#tids~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ 2 |ULTIMATE.start_main_~#tids~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0)), Black: 182#(= |#race~data~0| 0), 204#true]) [2023-11-29 06:44:46,384 INFO L294 olderBase$Statistics]: this new event has 150 ancestors and is not cut-off event [2023-11-29 06:44:46,384 INFO L297 olderBase$Statistics]: existing Event has 150 ancestors and is not cut-off event [2023-11-29 06:44:46,384 INFO L297 olderBase$Statistics]: existing Event has 150 ancestors and is not cut-off event [2023-11-29 06:44:46,384 INFO L297 olderBase$Statistics]: existing Event has 150 ancestors and is not cut-off event [2023-11-29 06:44:46,419 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([727] L1023-4-->L1023-5: Formula: (= |v_threadThread2of4ForFork0_#t~nondet5_3| |v_#race~data~0_1|) InVars {threadThread2of4ForFork0_#t~nondet5=|v_threadThread2of4ForFork0_#t~nondet5_3|} OutVars{threadThread2of4ForFork0_#t~nondet5=|v_threadThread2of4ForFork0_#t~nondet5_3|, #race~data~0=|v_#race~data~0_1|} AuxVars[] AssignedVars[#race~data~0][155], [130#L1023-5true, threadThread1of4ForFork0InUse, threadThread2of4ForFork0InUse, Black: 188#(= |ULTIMATE.start_main_~i~0#1| 0), threadThread3of4ForFork0InUse, threadThread4of4ForFork0InUse, 213#(= |threadThread2of4ForFork0_#t~nondet5| |#race~data~0|), Black: 200#(= |#race~data~0| |threadThread1of4ForFork0_#t~nondet5|), 95#L1024-3true, Black: 171#(= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0), Black: 172#(and (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ |ULTIMATE.start_main_~#tids~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0)), Black: 169#true, Black: 173#(and (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ |ULTIMATE.start_main_~#tids~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ 2 |ULTIMATE.start_main_~#tids~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0)), Black: 182#(= |#race~data~0| 0), 22#L1038-2true, 204#true, 92#L1024-3true, 23#threadErr0ASSERT_VIOLATIONDATA_RACEtrue]) [2023-11-29 06:44:46,419 INFO L294 olderBase$Statistics]: this new event has 151 ancestors and is cut-off event [2023-11-29 06:44:46,419 INFO L297 olderBase$Statistics]: existing Event has 151 ancestors and is cut-off event [2023-11-29 06:44:46,419 INFO L297 olderBase$Statistics]: existing Event has 151 ancestors and is cut-off event [2023-11-29 06:44:46,419 INFO L297 olderBase$Statistics]: existing Event has 151 ancestors and is cut-off event [2023-11-29 06:44:47,172 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([627] L1038-->L1038-1: Formula: (= |v_#race~data~0_6| 0) InVars {} OutVars{#race~data~0=|v_#race~data~0_6|} AuxVars[] AssignedVars[#race~data~0][134], [threadThread1of4ForFork0InUse, 30#L1023-6true, threadThread2of4ForFork0InUse, Black: 188#(= |ULTIMATE.start_main_~i~0#1| 0), threadThread3of4ForFork0InUse, threadThread4of4ForFork0NotInUse, 14#$Ultimate##0true, 137#L1038-1true, Black: 200#(= |#race~data~0| |threadThread1of4ForFork0_#t~nondet5|), 211#true, Black: 171#(= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0), Black: 172#(and (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ |ULTIMATE.start_main_~#tids~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0)), 115#L1023-6true, Black: 169#true, Black: 173#(and (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ |ULTIMATE.start_main_~#tids~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ 2 |ULTIMATE.start_main_~#tids~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0)), Black: 180#true, 204#true]) [2023-11-29 06:44:47,172 INFO L294 olderBase$Statistics]: this new event has 161 ancestors and is cut-off event [2023-11-29 06:44:47,172 INFO L297 olderBase$Statistics]: existing Event has 110 ancestors and is cut-off event [2023-11-29 06:44:47,172 INFO L297 olderBase$Statistics]: existing Event has 110 ancestors and is cut-off event [2023-11-29 06:44:47,172 INFO L297 olderBase$Statistics]: existing Event has 161 ancestors and is cut-off event [2023-11-29 06:44:47,370 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([627] L1038-->L1038-1: Formula: (= |v_#race~data~0_6| 0) InVars {} OutVars{#race~data~0=|v_#race~data~0_6|} AuxVars[] AssignedVars[#race~data~0][134], [30#L1023-6true, threadThread1of4ForFork0InUse, threadThread2of4ForFork0InUse, Black: 188#(= |ULTIMATE.start_main_~i~0#1| 0), threadThread3of4ForFork0InUse, threadThread4of4ForFork0NotInUse, 137#L1038-1true, Black: 200#(= |#race~data~0| |threadThread1of4ForFork0_#t~nondet5|), 211#true, Black: 171#(= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0), 40#L1022-3true, Black: 172#(and (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ |ULTIMATE.start_main_~#tids~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0)), 115#L1023-6true, Black: 169#true, Black: 173#(and (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ |ULTIMATE.start_main_~#tids~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ 2 |ULTIMATE.start_main_~#tids~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0)), Black: 180#true, 204#true]) [2023-11-29 06:44:47,370 INFO L294 olderBase$Statistics]: this new event has 163 ancestors and is cut-off event [2023-11-29 06:44:47,370 INFO L297 olderBase$Statistics]: existing Event has 112 ancestors and is cut-off event [2023-11-29 06:44:47,370 INFO L297 olderBase$Statistics]: existing Event has 163 ancestors and is cut-off event [2023-11-29 06:44:47,371 INFO L297 olderBase$Statistics]: existing Event has 112 ancestors and is cut-off event [2023-11-29 06:44:48,137 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([627] L1038-->L1038-1: Formula: (= |v_#race~data~0_6| 0) InVars {} OutVars{#race~data~0=|v_#race~data~0_6|} AuxVars[] AssignedVars[#race~data~0][134], [threadThread1of4ForFork0InUse, 30#L1023-6true, threadThread2of4ForFork0InUse, Black: 188#(= |ULTIMATE.start_main_~i~0#1| 0), threadThread3of4ForFork0InUse, threadThread4of4ForFork0NotInUse, 137#L1038-1true, Black: 200#(= |#race~data~0| |threadThread1of4ForFork0_#t~nondet5|), 211#true, Black: 171#(= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0), 69#L1023-5true, Black: 172#(and (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ |ULTIMATE.start_main_~#tids~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0)), 115#L1023-6true, Black: 169#true, Black: 173#(and (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ |ULTIMATE.start_main_~#tids~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ 2 |ULTIMATE.start_main_~#tids~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0)), Black: 180#true, 204#true]) [2023-11-29 06:44:48,138 INFO L294 olderBase$Statistics]: this new event has 169 ancestors and is cut-off event [2023-11-29 06:44:48,138 INFO L297 olderBase$Statistics]: existing Event has 169 ancestors and is cut-off event [2023-11-29 06:44:48,138 INFO L297 olderBase$Statistics]: existing Event has 118 ancestors and is cut-off event [2023-11-29 06:44:48,138 INFO L297 olderBase$Statistics]: existing Event has 118 ancestors and is cut-off event [2023-11-29 06:44:48,340 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([627] L1038-->L1038-1: Formula: (= |v_#race~data~0_6| 0) InVars {} OutVars{#race~data~0=|v_#race~data~0_6|} AuxVars[] AssignedVars[#race~data~0][133], [30#L1023-6true, threadThread1of4ForFork0InUse, threadThread2of4ForFork0InUse, Black: 188#(= |ULTIMATE.start_main_~i~0#1| 0), threadThread3of4ForFork0InUse, threadThread4of4ForFork0NotInUse, 137#L1038-1true, Black: 200#(= |#race~data~0| |threadThread1of4ForFork0_#t~nondet5|), 69#L1023-5true, 211#true, Black: 171#(= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0), Black: 172#(and (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ |ULTIMATE.start_main_~#tids~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0)), Black: 169#true, Black: 173#(and (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ |ULTIMATE.start_main_~#tids~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ 2 |ULTIMATE.start_main_~#tids~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0)), Black: 180#true, 204#true, 23#threadErr0ASSERT_VIOLATIONDATA_RACEtrue]) [2023-11-29 06:44:48,340 INFO L294 olderBase$Statistics]: this new event has 169 ancestors and is cut-off event [2023-11-29 06:44:48,340 INFO L297 olderBase$Statistics]: existing Event has 118 ancestors and is cut-off event [2023-11-29 06:44:48,340 INFO L297 olderBase$Statistics]: existing Event has 169 ancestors and is cut-off event [2023-11-29 06:44:48,340 INFO L297 olderBase$Statistics]: existing Event has 118 ancestors and is cut-off event [2023-11-29 06:44:48,493 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([627] L1038-->L1038-1: Formula: (= |v_#race~data~0_6| 0) InVars {} OutVars{#race~data~0=|v_#race~data~0_6|} AuxVars[] AssignedVars[#race~data~0][91], [threadThread1of4ForFork0InUse, threadThread2of4ForFork0InUse, Black: 188#(= |ULTIMATE.start_main_~i~0#1| 0), threadThread3of4ForFork0InUse, threadThread4of4ForFork0NotInUse, 137#L1038-1true, Black: 200#(= |#race~data~0| |threadThread1of4ForFork0_#t~nondet5|), 211#true, Black: 171#(= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0), 69#L1023-5true, Black: 172#(and (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ |ULTIMATE.start_main_~#tids~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0)), Black: 169#true, Black: 173#(and (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ |ULTIMATE.start_main_~#tids~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ 2 |ULTIMATE.start_main_~#tids~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0)), 39#L1024true, Black: 180#true, 204#true, 23#threadErr0ASSERT_VIOLATIONDATA_RACEtrue]) [2023-11-29 06:44:48,493 INFO L294 olderBase$Statistics]: this new event has 171 ancestors and is cut-off event [2023-11-29 06:44:48,493 INFO L297 olderBase$Statistics]: existing Event has 120 ancestors and is cut-off event [2023-11-29 06:44:48,493 INFO L297 olderBase$Statistics]: existing Event has 120 ancestors and is cut-off event [2023-11-29 06:44:48,494 INFO L297 olderBase$Statistics]: existing Event has 171 ancestors and is cut-off event [2023-11-29 06:44:48,494 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([627] L1038-->L1038-1: Formula: (= |v_#race~data~0_6| 0) InVars {} OutVars{#race~data~0=|v_#race~data~0_6|} AuxVars[] AssignedVars[#race~data~0][134], [30#L1023-6true, threadThread1of4ForFork0InUse, threadThread2of4ForFork0InUse, Black: 188#(= |ULTIMATE.start_main_~i~0#1| 0), threadThread3of4ForFork0InUse, threadThread4of4ForFork0NotInUse, 137#L1038-1true, Black: 200#(= |#race~data~0| |threadThread1of4ForFork0_#t~nondet5|), 95#L1024-3true, Black: 171#(= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0), 211#true, Black: 172#(and (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ |ULTIMATE.start_main_~#tids~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0)), 115#L1023-6true, Black: 169#true, Black: 173#(and (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ |ULTIMATE.start_main_~#tids~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ 2 |ULTIMATE.start_main_~#tids~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0)), Black: 180#true, 204#true]) [2023-11-29 06:44:48,494 INFO L294 olderBase$Statistics]: this new event has 173 ancestors and is cut-off event [2023-11-29 06:44:48,494 INFO L297 olderBase$Statistics]: existing Event has 122 ancestors and is cut-off event [2023-11-29 06:44:48,495 INFO L297 olderBase$Statistics]: existing Event has 122 ancestors and is cut-off event [2023-11-29 06:44:48,495 INFO L297 olderBase$Statistics]: existing Event has 173 ancestors and is cut-off event [2023-11-29 06:44:48,559 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([627] L1038-->L1038-1: Formula: (= |v_#race~data~0_6| 0) InVars {} OutVars{#race~data~0=|v_#race~data~0_6|} AuxVars[] AssignedVars[#race~data~0][91], [threadThread1of4ForFork0InUse, threadThread2of4ForFork0InUse, Black: 188#(= |ULTIMATE.start_main_~i~0#1| 0), threadThread3of4ForFork0InUse, threadThread4of4ForFork0NotInUse, 137#L1038-1true, Black: 200#(= |#race~data~0| |threadThread1of4ForFork0_#t~nondet5|), 136#L1024-3true, 211#true, Black: 171#(= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0), 69#L1023-5true, Black: 172#(and (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ |ULTIMATE.start_main_~#tids~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0)), Black: 169#true, Black: 173#(and (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ |ULTIMATE.start_main_~#tids~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ 2 |ULTIMATE.start_main_~#tids~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0)), Black: 180#true, 204#true, 23#threadErr0ASSERT_VIOLATIONDATA_RACEtrue]) [2023-11-29 06:44:48,559 INFO L294 olderBase$Statistics]: this new event has 172 ancestors and is cut-off event [2023-11-29 06:44:48,559 INFO L297 olderBase$Statistics]: existing Event has 121 ancestors and is cut-off event [2023-11-29 06:44:48,559 INFO L297 olderBase$Statistics]: existing Event has 121 ancestors and is cut-off event [2023-11-29 06:44:48,559 INFO L297 olderBase$Statistics]: existing Event has 172 ancestors and is cut-off event [2023-11-29 06:44:48,625 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([627] L1038-->L1038-1: Formula: (= |v_#race~data~0_6| 0) InVars {} OutVars{#race~data~0=|v_#race~data~0_6|} AuxVars[] AssignedVars[#race~data~0][133], [30#L1023-6true, threadThread1of4ForFork0InUse, threadThread2of4ForFork0InUse, Black: 188#(= |ULTIMATE.start_main_~i~0#1| 0), threadThread3of4ForFork0InUse, threadThread4of4ForFork0NotInUse, 137#L1038-1true, Black: 200#(= |#race~data~0| |threadThread1of4ForFork0_#t~nondet5|), 95#L1024-3true, 211#true, Black: 171#(= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0), Black: 172#(and (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ |ULTIMATE.start_main_~#tids~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0)), Black: 169#true, Black: 173#(and (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ |ULTIMATE.start_main_~#tids~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ 2 |ULTIMATE.start_main_~#tids~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0)), Black: 180#true, 204#true, 23#threadErr0ASSERT_VIOLATIONDATA_RACEtrue]) [2023-11-29 06:44:48,625 INFO L294 olderBase$Statistics]: this new event has 173 ancestors and is cut-off event [2023-11-29 06:44:48,625 INFO L297 olderBase$Statistics]: existing Event has 122 ancestors and is cut-off event [2023-11-29 06:44:48,625 INFO L297 olderBase$Statistics]: existing Event has 122 ancestors and is cut-off event [2023-11-29 06:44:48,625 INFO L297 olderBase$Statistics]: existing Event has 173 ancestors and is cut-off event [2023-11-29 06:44:48,742 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([627] L1038-->L1038-1: Formula: (= |v_#race~data~0_6| 0) InVars {} OutVars{#race~data~0=|v_#race~data~0_6|} AuxVars[] AssignedVars[#race~data~0][91], [threadThread1of4ForFork0InUse, threadThread2of4ForFork0InUse, Black: 188#(= |ULTIMATE.start_main_~i~0#1| 0), threadThread3of4ForFork0InUse, threadThread4of4ForFork0NotInUse, 137#L1038-1true, Black: 200#(= |#race~data~0| |threadThread1of4ForFork0_#t~nondet5|), 95#L1024-3true, 211#true, Black: 171#(= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0), Black: 172#(and (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ |ULTIMATE.start_main_~#tids~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0)), Black: 169#true, Black: 173#(and (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ |ULTIMATE.start_main_~#tids~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ 2 |ULTIMATE.start_main_~#tids~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0)), 39#L1024true, Black: 180#true, 204#true, 23#threadErr0ASSERT_VIOLATIONDATA_RACEtrue]) [2023-11-29 06:44:48,742 INFO L294 olderBase$Statistics]: this new event has 175 ancestors and is cut-off event [2023-11-29 06:44:48,742 INFO L297 olderBase$Statistics]: existing Event has 124 ancestors and is cut-off event [2023-11-29 06:44:48,742 INFO L297 olderBase$Statistics]: existing Event has 124 ancestors and is cut-off event [2023-11-29 06:44:48,742 INFO L297 olderBase$Statistics]: existing Event has 175 ancestors and is cut-off event [2023-11-29 06:44:48,950 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([627] L1038-->L1038-1: Formula: (= |v_#race~data~0_6| 0) InVars {} OutVars{#race~data~0=|v_#race~data~0_6|} AuxVars[] AssignedVars[#race~data~0][91], [threadThread1of4ForFork0InUse, threadThread2of4ForFork0InUse, Black: 188#(= |ULTIMATE.start_main_~i~0#1| 0), threadThread3of4ForFork0InUse, threadThread4of4ForFork0NotInUse, 137#L1038-1true, Black: 200#(= |#race~data~0| |threadThread1of4ForFork0_#t~nondet5|), 95#L1024-3true, 211#true, 136#L1024-3true, Black: 171#(= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0), Black: 172#(and (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ |ULTIMATE.start_main_~#tids~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0)), Black: 169#true, Black: 173#(and (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ |ULTIMATE.start_main_~#tids~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ 2 |ULTIMATE.start_main_~#tids~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0)), Black: 180#true, 204#true, 23#threadErr0ASSERT_VIOLATIONDATA_RACEtrue]) [2023-11-29 06:44:48,951 INFO L294 olderBase$Statistics]: this new event has 176 ancestors and is cut-off event [2023-11-29 06:44:48,951 INFO L297 olderBase$Statistics]: existing Event has 176 ancestors and is cut-off event [2023-11-29 06:44:48,951 INFO L297 olderBase$Statistics]: existing Event has 125 ancestors and is cut-off event [2023-11-29 06:44:48,951 INFO L297 olderBase$Statistics]: existing Event has 125 ancestors and is cut-off event [2023-11-29 06:44:49,631 INFO L124 PetriNetUnfolderBase]: 23229/73281 cut-off events. [2023-11-29 06:44:49,631 INFO L125 PetriNetUnfolderBase]: For 39378/77976 co-relation queries the response was YES. [2023-11-29 06:44:49,962 INFO L83 FinitePrefix]: Finished finitePrefix Result has 141213 conditions, 73281 events. 23229/73281 cut-off events. For 39378/77976 co-relation queries the response was YES. Maximal size of possible extension queue 2748. Compared 1024238 event pairs, 11276 based on Foata normal form. 58/64735 useless extension candidates. Maximal degree in co-relation 122571. Up to 25820 conditions per place. [2023-11-29 06:44:50,297 INFO L140 encePairwiseOnDemand]: 156/164 looper letters, 43 selfloop transitions, 18 changer transitions 0/200 dead transitions. [2023-11-29 06:44:50,297 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 182 places, 200 transitions, 757 flow [2023-11-29 06:44:50,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 06:44:50,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 06:44:50,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 451 transitions. [2023-11-29 06:44:50,299 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9166666666666666 [2023-11-29 06:44:50,299 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 451 transitions. [2023-11-29 06:44:50,299 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 451 transitions. [2023-11-29 06:44:50,299 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:44:50,299 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 451 transitions. [2023-11-29 06:44:50,300 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 150.33333333333334) internal successors, (451), 3 states have internal predecessors, (451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:44:50,301 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 164.0) internal successors, (656), 4 states have internal predecessors, (656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:44:50,301 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 164.0) internal successors, (656), 4 states have internal predecessors, (656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:44:50,301 INFO L175 Difference]: Start difference. First operand has 180 places, 175 transitions, 512 flow. Second operand 3 states and 451 transitions. [2023-11-29 06:44:50,302 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 182 places, 200 transitions, 757 flow [2023-11-29 06:44:50,613 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 177 places, 200 transitions, 747 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-29 06:44:50,615 INFO L231 Difference]: Finished difference. Result has 179 places, 189 transitions, 680 flow [2023-11-29 06:44:50,615 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=502, PETRI_DIFFERENCE_MINUEND_PLACES=175, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=175, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=157, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=680, PETRI_PLACES=179, PETRI_TRANSITIONS=189} [2023-11-29 06:44:50,616 INFO L281 CegarLoopForPetriNet]: 166 programPoint places, 13 predicate places. [2023-11-29 06:44:50,616 INFO L495 AbstractCegarLoop]: Abstraction has has 179 places, 189 transitions, 680 flow [2023-11-29 06:44:50,616 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 138.0) internal successors, (414), 3 states have internal predecessors, (414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:44:50,616 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:44:50,617 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:44:50,617 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-11-29 06:44:50,617 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2023-11-29 06:44:50,617 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:44:50,617 INFO L85 PathProgramCache]: Analyzing trace with hash -1408535861, now seen corresponding path program 1 times [2023-11-29 06:44:50,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:44:50,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381493772] [2023-11-29 06:44:50,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:44:50,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:44:50,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:44:50,695 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:44:50,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:44:50,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381493772] [2023-11-29 06:44:50,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1381493772] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:44:50,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2026887739] [2023-11-29 06:44:50,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:44:50,696 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:44:50,696 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_140527c8-8106-4f08-860d-a429ab78858d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:44:50,697 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_140527c8-8106-4f08-860d-a429ab78858d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:44:50,700 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_140527c8-8106-4f08-860d-a429ab78858d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 06:44:50,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:44:50,844 INFO L262 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 06:44:50,846 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:44:50,903 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:44:50,903 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:44:50,957 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:44:50,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2026887739] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:44:50,958 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 06:44:50,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 9 [2023-11-29 06:44:50,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857144567] [2023-11-29 06:44:50,958 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 06:44:50,959 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 06:44:50,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:44:50,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 06:44:50,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-11-29 06:44:51,055 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 164 [2023-11-29 06:44:51,057 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 179 places, 189 transitions, 680 flow. Second operand has 9 states, 9 states have (on average 134.33333333333334) internal successors, (1209), 9 states have internal predecessors, (1209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:44:51,057 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 06:44:51,057 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 164 [2023-11-29 06:44:51,057 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 06:44:57,427 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([743] L1023-4-->L1023-5: Formula: (= |v_threadThread4of4ForFork0_#t~nondet5_3| |v_#race~data~0_1|) InVars {threadThread4of4ForFork0_#t~nondet5=|v_threadThread4of4ForFork0_#t~nondet5_3|} OutVars{threadThread4of4ForFork0_#t~nondet5=|v_threadThread4of4ForFork0_#t~nondet5_3|, #race~data~0=|v_#race~data~0_1|} AuxVars[] AssignedVars[#race~data~0][224], [threadThread1of4ForFork0NotInUse, 30#L1023-6true, threadThread2of4ForFork0InUse, threadThread3of4ForFork0InUse, Black: 188#(= |ULTIMATE.start_main_~i~0#1| 0), threadThread4of4ForFork0InUse, Black: 200#(= |#race~data~0| |threadThread1of4ForFork0_#t~nondet5|), 211#true, Black: 171#(= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0), 69#L1023-5true, Black: 172#(and (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ |ULTIMATE.start_main_~#tids~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0)), Black: 169#true, 27#L1023-5true, Black: 173#(and (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ |ULTIMATE.start_main_~#tids~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ 2 |ULTIMATE.start_main_~#tids~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0)), 221#(<= 1 |ULTIMATE.start_main_~threads_total~0#1|), Black: 213#(= |threadThread2of4ForFork0_#t~nondet5| |#race~data~0|), Black: 182#(= |#race~data~0| 0), 22#L1038-2true]) [2023-11-29 06:44:57,428 INFO L294 olderBase$Statistics]: this new event has 169 ancestors and is cut-off event [2023-11-29 06:44:57,428 INFO L297 olderBase$Statistics]: existing Event has 169 ancestors and is cut-off event [2023-11-29 06:44:57,428 INFO L297 olderBase$Statistics]: existing Event has 169 ancestors and is cut-off event [2023-11-29 06:44:57,428 INFO L297 olderBase$Statistics]: existing Event has 169 ancestors and is cut-off event [2023-11-29 06:44:57,507 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([743] L1023-4-->L1023-5: Formula: (= |v_threadThread4of4ForFork0_#t~nondet5_3| |v_#race~data~0_1|) InVars {threadThread4of4ForFork0_#t~nondet5=|v_threadThread4of4ForFork0_#t~nondet5_3|} OutVars{threadThread4of4ForFork0_#t~nondet5=|v_threadThread4of4ForFork0_#t~nondet5_3|, #race~data~0=|v_#race~data~0_1|} AuxVars[] AssignedVars[#race~data~0][225], [threadThread1of4ForFork0InUse, threadThread2of4ForFork0NotInUse, threadThread3of4ForFork0InUse, Black: 188#(= |ULTIMATE.start_main_~i~0#1| 0), threadThread4of4ForFork0InUse, Black: 200#(= |#race~data~0| |threadThread1of4ForFork0_#t~nondet5|), 211#true, 69#L1023-5true, Black: 171#(= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0), 115#L1023-6true, Black: 172#(and (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ |ULTIMATE.start_main_~#tids~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0)), 27#L1023-5true, Black: 169#true, Black: 173#(and (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ |ULTIMATE.start_main_~#tids~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ 2 |ULTIMATE.start_main_~#tids~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0)), Black: 182#(= |#race~data~0| 0), Black: 213#(= |threadThread2of4ForFork0_#t~nondet5| |#race~data~0|), 221#(<= 1 |ULTIMATE.start_main_~threads_total~0#1|), 22#L1038-2true]) [2023-11-29 06:44:57,507 INFO L294 olderBase$Statistics]: this new event has 169 ancestors and is cut-off event [2023-11-29 06:44:57,507 INFO L297 olderBase$Statistics]: existing Event has 169 ancestors and is cut-off event [2023-11-29 06:44:57,507 INFO L297 olderBase$Statistics]: existing Event has 169 ancestors and is cut-off event [2023-11-29 06:44:57,507 INFO L297 olderBase$Statistics]: existing Event has 169 ancestors and is cut-off event [2023-11-29 06:44:57,851 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([743] L1023-4-->L1023-5: Formula: (= |v_threadThread4of4ForFork0_#t~nondet5_3| |v_#race~data~0_1|) InVars {threadThread4of4ForFork0_#t~nondet5=|v_threadThread4of4ForFork0_#t~nondet5_3|} OutVars{threadThread4of4ForFork0_#t~nondet5=|v_threadThread4of4ForFork0_#t~nondet5_3|, #race~data~0=|v_#race~data~0_1|} AuxVars[] AssignedVars[#race~data~0][222], [threadThread1of4ForFork0NotInUse, threadThread2of4ForFork0InUse, threadThread3of4ForFork0InUse, Black: 188#(= |ULTIMATE.start_main_~i~0#1| 0), threadThread4of4ForFork0InUse, Black: 200#(= |#race~data~0| |threadThread1of4ForFork0_#t~nondet5|), 211#true, Black: 171#(= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0), 69#L1023-5true, Black: 172#(and (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ |ULTIMATE.start_main_~#tids~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0)), 27#L1023-5true, Black: 169#true, Black: 173#(and (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ |ULTIMATE.start_main_~#tids~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ 2 |ULTIMATE.start_main_~#tids~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0)), 39#L1024true, 221#(<= 1 |ULTIMATE.start_main_~threads_total~0#1|), Black: 213#(= |threadThread2of4ForFork0_#t~nondet5| |#race~data~0|), Black: 182#(= |#race~data~0| 0), 22#L1038-2true]) [2023-11-29 06:44:57,851 INFO L294 olderBase$Statistics]: this new event has 171 ancestors and is cut-off event [2023-11-29 06:44:57,851 INFO L297 olderBase$Statistics]: existing Event has 171 ancestors and is cut-off event [2023-11-29 06:44:57,851 INFO L297 olderBase$Statistics]: existing Event has 171 ancestors and is cut-off event [2023-11-29 06:44:57,851 INFO L297 olderBase$Statistics]: existing Event has 171 ancestors and is cut-off event [2023-11-29 06:44:57,855 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([743] L1023-4-->L1023-5: Formula: (= |v_threadThread4of4ForFork0_#t~nondet5_3| |v_#race~data~0_1|) InVars {threadThread4of4ForFork0_#t~nondet5=|v_threadThread4of4ForFork0_#t~nondet5_3|} OutVars{threadThread4of4ForFork0_#t~nondet5=|v_threadThread4of4ForFork0_#t~nondet5_3|, #race~data~0=|v_#race~data~0_1|} AuxVars[] AssignedVars[#race~data~0][222], [threadThread1of4ForFork0InUse, threadThread2of4ForFork0NotInUse, threadThread3of4ForFork0InUse, Black: 188#(= |ULTIMATE.start_main_~i~0#1| 0), threadThread4of4ForFork0InUse, Black: 200#(= |#race~data~0| |threadThread1of4ForFork0_#t~nondet5|), 151#L1024true, 69#L1023-5true, Black: 171#(= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0), 211#true, Black: 172#(and (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ |ULTIMATE.start_main_~#tids~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0)), Black: 169#true, 27#L1023-5true, Black: 173#(and (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ |ULTIMATE.start_main_~#tids~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ 2 |ULTIMATE.start_main_~#tids~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0)), Black: 182#(= |#race~data~0| 0), Black: 213#(= |threadThread2of4ForFork0_#t~nondet5| |#race~data~0|), 221#(<= 1 |ULTIMATE.start_main_~threads_total~0#1|), 22#L1038-2true]) [2023-11-29 06:44:57,855 INFO L294 olderBase$Statistics]: this new event has 171 ancestors and is cut-off event [2023-11-29 06:44:57,855 INFO L297 olderBase$Statistics]: existing Event has 171 ancestors and is cut-off event [2023-11-29 06:44:57,855 INFO L297 olderBase$Statistics]: existing Event has 171 ancestors and is cut-off event [2023-11-29 06:44:57,855 INFO L297 olderBase$Statistics]: existing Event has 171 ancestors and is cut-off event [2023-11-29 06:44:58,633 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([743] L1023-4-->L1023-5: Formula: (= |v_threadThread4of4ForFork0_#t~nondet5_3| |v_#race~data~0_1|) InVars {threadThread4of4ForFork0_#t~nondet5=|v_threadThread4of4ForFork0_#t~nondet5_3|} OutVars{threadThread4of4ForFork0_#t~nondet5=|v_threadThread4of4ForFork0_#t~nondet5_3|, #race~data~0=|v_#race~data~0_1|} AuxVars[] AssignedVars[#race~data~0][225], [threadThread1of4ForFork0InUse, threadThread2of4ForFork0InUse, threadThread3of4ForFork0NotInUse, Black: 188#(= |ULTIMATE.start_main_~i~0#1| 0), threadThread4of4ForFork0InUse, Black: 200#(= |#race~data~0| |threadThread1of4ForFork0_#t~nondet5|), 211#true, 136#L1024-3true, Black: 171#(= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0), Black: 172#(and (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ |ULTIMATE.start_main_~#tids~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0)), 115#L1023-6true, Black: 169#true, 27#L1023-5true, Black: 173#(and (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ |ULTIMATE.start_main_~#tids~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ 2 |ULTIMATE.start_main_~#tids~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0)), 221#(<= 1 |ULTIMATE.start_main_~threads_total~0#1|), Black: 213#(= |threadThread2of4ForFork0_#t~nondet5| |#race~data~0|), Black: 182#(= |#race~data~0| 0), 22#L1038-2true]) [2023-11-29 06:44:58,633 INFO L294 olderBase$Statistics]: this new event has 173 ancestors and is cut-off event [2023-11-29 06:44:58,633 INFO L297 olderBase$Statistics]: existing Event has 173 ancestors and is cut-off event [2023-11-29 06:44:58,633 INFO L297 olderBase$Statistics]: existing Event has 173 ancestors and is cut-off event [2023-11-29 06:44:58,633 INFO L297 olderBase$Statistics]: existing Event has 173 ancestors and is cut-off event [2023-11-29 06:44:59,692 INFO L124 PetriNetUnfolderBase]: 16918/65322 cut-off events. [2023-11-29 06:44:59,692 INFO L125 PetriNetUnfolderBase]: For 22858/27231 co-relation queries the response was YES. [2023-11-29 06:45:00,145 INFO L83 FinitePrefix]: Finished finitePrefix Result has 113383 conditions, 65322 events. 16918/65322 cut-off events. For 22858/27231 co-relation queries the response was YES. Maximal size of possible extension queue 1558. Compared 932623 event pairs, 5122 based on Foata normal form. 39/58859 useless extension candidates. Maximal degree in co-relation 63510. Up to 8876 conditions per place. [2023-11-29 06:45:00,361 INFO L140 encePairwiseOnDemand]: 154/164 looper letters, 61 selfloop transitions, 10 changer transitions 0/230 dead transitions. [2023-11-29 06:45:00,361 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 230 transitions, 916 flow [2023-11-29 06:45:00,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 06:45:00,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-29 06:45:00,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1128 transitions. [2023-11-29 06:45:00,362 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8597560975609756 [2023-11-29 06:45:00,362 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1128 transitions. [2023-11-29 06:45:00,362 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1128 transitions. [2023-11-29 06:45:00,363 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:45:00,363 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1128 transitions. [2023-11-29 06:45:00,364 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 141.0) internal successors, (1128), 8 states have internal predecessors, (1128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:45:00,365 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 164.0) internal successors, (1476), 9 states have internal predecessors, (1476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:45:00,366 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 164.0) internal successors, (1476), 9 states have internal predecessors, (1476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:45:00,366 INFO L175 Difference]: Start difference. First operand has 179 places, 189 transitions, 680 flow. Second operand 8 states and 1128 transitions. [2023-11-29 06:45:00,366 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 230 transitions, 916 flow [2023-11-29 06:45:00,470 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 184 places, 230 transitions, 880 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-29 06:45:00,472 INFO L231 Difference]: Finished difference. Result has 187 places, 192 transitions, 688 flow [2023-11-29 06:45:00,472 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=644, PETRI_DIFFERENCE_MINUEND_PLACES=177, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=189, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=180, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=688, PETRI_PLACES=187, PETRI_TRANSITIONS=192} [2023-11-29 06:45:00,473 INFO L281 CegarLoopForPetriNet]: 166 programPoint places, 21 predicate places. [2023-11-29 06:45:00,473 INFO L495 AbstractCegarLoop]: Abstraction has has 187 places, 192 transitions, 688 flow [2023-11-29 06:45:00,473 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 134.33333333333334) internal successors, (1209), 9 states have internal predecessors, (1209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:45:00,473 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:45:00,473 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 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] [2023-11-29 06:45:00,477 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_140527c8-8106-4f08-860d-a429ab78858d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-29 06:45:00,674 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_140527c8-8106-4f08-860d-a429ab78858d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:45:00,674 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2023-11-29 06:45:00,674 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:45:00,674 INFO L85 PathProgramCache]: Analyzing trace with hash 1384939788, now seen corresponding path program 1 times [2023-11-29 06:45:00,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:45:00,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957876632] [2023-11-29 06:45:00,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:45:00,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:45:00,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:45:00,755 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:45:00,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:45:00,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957876632] [2023-11-29 06:45:00,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [957876632] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:45:00,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:45:00,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 06:45:00,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854738844] [2023-11-29 06:45:00,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:45:00,757 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 06:45:00,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:45:00,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 06:45:00,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 06:45:00,767 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 164 [2023-11-29 06:45:00,768 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 187 places, 192 transitions, 688 flow. Second operand has 3 states, 3 states have (on average 145.66666666666666) internal successors, (437), 3 states have internal predecessors, (437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:45:00,768 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 06:45:00,768 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 164 [2023-11-29 06:45:00,768 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 06:45:02,088 INFO L124 PetriNetUnfolderBase]: 688/8410 cut-off events. [2023-11-29 06:45:02,088 INFO L125 PetriNetUnfolderBase]: For 2769/3239 co-relation queries the response was YES. [2023-11-29 06:45:02,108 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13670 conditions, 8410 events. 688/8410 cut-off events. For 2769/3239 co-relation queries the response was YES. Maximal size of possible extension queue 277. Compared 99734 event pairs, 149 based on Foata normal form. 199/8213 useless extension candidates. Maximal degree in co-relation 5330. Up to 662 conditions per place. [2023-11-29 06:45:02,120 INFO L140 encePairwiseOnDemand]: 156/164 looper letters, 16 selfloop transitions, 8 changer transitions 0/182 dead transitions. [2023-11-29 06:45:02,120 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 189 places, 182 transitions, 647 flow [2023-11-29 06:45:02,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 06:45:02,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 06:45:02,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 460 transitions. [2023-11-29 06:45:02,122 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9349593495934959 [2023-11-29 06:45:02,122 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 460 transitions. [2023-11-29 06:45:02,122 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 460 transitions. [2023-11-29 06:45:02,122 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:45:02,122 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 460 transitions. [2023-11-29 06:45:02,123 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 153.33333333333334) internal successors, (460), 3 states have internal predecessors, (460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:45:02,124 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 164.0) internal successors, (656), 4 states have internal predecessors, (656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:45:02,125 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 164.0) internal successors, (656), 4 states have internal predecessors, (656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:45:02,125 INFO L175 Difference]: Start difference. First operand has 187 places, 192 transitions, 688 flow. Second operand 3 states and 460 transitions. [2023-11-29 06:45:02,125 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 189 places, 182 transitions, 647 flow [2023-11-29 06:45:02,139 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 186 places, 182 transitions, 637 flow, removed 2 selfloop flow, removed 3 redundant places. [2023-11-29 06:45:02,143 INFO L231 Difference]: Finished difference. Result has 186 places, 175 transitions, 558 flow [2023-11-29 06:45:02,143 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=542, PETRI_DIFFERENCE_MINUEND_PLACES=184, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=175, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=167, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=558, PETRI_PLACES=186, PETRI_TRANSITIONS=175} [2023-11-29 06:45:02,144 INFO L281 CegarLoopForPetriNet]: 166 programPoint places, 20 predicate places. [2023-11-29 06:45:02,144 INFO L495 AbstractCegarLoop]: Abstraction has has 186 places, 175 transitions, 558 flow [2023-11-29 06:45:02,144 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 145.66666666666666) internal successors, (437), 3 states have internal predecessors, (437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:45:02,144 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:45:02,145 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 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] [2023-11-29 06:45:02,145 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-11-29 06:45:02,145 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2023-11-29 06:45:02,145 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:45:02,146 INFO L85 PathProgramCache]: Analyzing trace with hash 329203413, now seen corresponding path program 1 times [2023-11-29 06:45:02,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:45:02,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559553234] [2023-11-29 06:45:02,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:45:02,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:45:02,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:45:02,201 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2023-11-29 06:45:02,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:45:02,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559553234] [2023-11-29 06:45:02,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [559553234] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:45:02,202 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:45:02,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 06:45:02,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450949481] [2023-11-29 06:45:02,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:45:02,203 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 06:45:02,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:45:02,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 06:45:02,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 06:45:02,226 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 164 [2023-11-29 06:45:02,227 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 186 places, 175 transitions, 558 flow. Second operand has 3 states, 3 states have (on average 138.33333333333334) internal successors, (415), 3 states have internal predecessors, (415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:45:02,227 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 06:45:02,227 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 164 [2023-11-29 06:45:02,227 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 06:45:03,729 INFO L124 PetriNetUnfolderBase]: 1114/8945 cut-off events. [2023-11-29 06:45:03,730 INFO L125 PetriNetUnfolderBase]: For 6669/8975 co-relation queries the response was YES. [2023-11-29 06:45:03,761 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16874 conditions, 8945 events. 1114/8945 cut-off events. For 6669/8975 co-relation queries the response was YES. Maximal size of possible extension queue 348. Compared 108591 event pairs, 714 based on Foata normal form. 24/8249 useless extension candidates. Maximal degree in co-relation 13153. Up to 2065 conditions per place. [2023-11-29 06:45:03,779 INFO L140 encePairwiseOnDemand]: 159/164 looper letters, 33 selfloop transitions, 5 changer transitions 0/182 dead transitions. [2023-11-29 06:45:03,779 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 188 places, 182 transitions, 672 flow [2023-11-29 06:45:03,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 06:45:03,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 06:45:03,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 441 transitions. [2023-11-29 06:45:03,780 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8963414634146342 [2023-11-29 06:45:03,780 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 441 transitions. [2023-11-29 06:45:03,780 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 441 transitions. [2023-11-29 06:45:03,780 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:45:03,780 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 441 transitions. [2023-11-29 06:45:03,781 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 147.0) internal successors, (441), 3 states have internal predecessors, (441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:45:03,781 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 164.0) internal successors, (656), 4 states have internal predecessors, (656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:45:03,781 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 164.0) internal successors, (656), 4 states have internal predecessors, (656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:45:03,781 INFO L175 Difference]: Start difference. First operand has 186 places, 175 transitions, 558 flow. Second operand 3 states and 441 transitions. [2023-11-29 06:45:03,781 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 188 places, 182 transitions, 672 flow [2023-11-29 06:45:03,801 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 187 places, 182 transitions, 664 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-29 06:45:03,803 INFO L231 Difference]: Finished difference. Result has 189 places, 178 transitions, 590 flow [2023-11-29 06:45:03,803 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=550, PETRI_DIFFERENCE_MINUEND_PLACES=185, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=175, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=170, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=590, PETRI_PLACES=189, PETRI_TRANSITIONS=178} [2023-11-29 06:45:03,804 INFO L281 CegarLoopForPetriNet]: 166 programPoint places, 23 predicate places. [2023-11-29 06:45:03,804 INFO L495 AbstractCegarLoop]: Abstraction has has 189 places, 178 transitions, 590 flow [2023-11-29 06:45:03,804 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 138.33333333333334) internal successors, (415), 3 states have internal predecessors, (415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:45:03,804 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:45:03,805 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:45:03,805 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2023-11-29 06:45:03,805 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2023-11-29 06:45:03,805 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:45:03,805 INFO L85 PathProgramCache]: Analyzing trace with hash -1363770649, now seen corresponding path program 1 times [2023-11-29 06:45:03,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:45:03,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235048609] [2023-11-29 06:45:03,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:45:03,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:45:03,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:45:03,845 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-11-29 06:45:03,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:45:03,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235048609] [2023-11-29 06:45:03,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235048609] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:45:03,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:45:03,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 06:45:03,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855141306] [2023-11-29 06:45:03,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:45:03,846 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 06:45:03,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:45:03,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 06:45:03,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 06:45:03,867 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 164 [2023-11-29 06:45:03,868 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 189 places, 178 transitions, 590 flow. Second operand has 3 states, 3 states have (on average 138.66666666666666) internal successors, (416), 3 states have internal predecessors, (416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:45:03,868 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 06:45:03,868 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 164 [2023-11-29 06:45:03,868 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 06:45:05,105 INFO L124 PetriNetUnfolderBase]: 1121/9381 cut-off events. [2023-11-29 06:45:05,105 INFO L125 PetriNetUnfolderBase]: For 9032/11739 co-relation queries the response was YES. [2023-11-29 06:45:05,138 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18166 conditions, 9381 events. 1121/9381 cut-off events. For 9032/11739 co-relation queries the response was YES. Maximal size of possible extension queue 372. Compared 115870 event pairs, 707 based on Foata normal form. 18/8735 useless extension candidates. Maximal degree in co-relation 14444. Up to 2095 conditions per place. [2023-11-29 06:45:05,154 INFO L140 encePairwiseOnDemand]: 159/164 looper letters, 33 selfloop transitions, 5 changer transitions 0/184 dead transitions. [2023-11-29 06:45:05,155 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 191 places, 184 transitions, 695 flow [2023-11-29 06:45:05,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 06:45:05,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 06:45:05,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 440 transitions. [2023-11-29 06:45:05,156 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8943089430894309 [2023-11-29 06:45:05,156 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 440 transitions. [2023-11-29 06:45:05,156 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 440 transitions. [2023-11-29 06:45:05,156 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:45:05,156 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 440 transitions. [2023-11-29 06:45:05,157 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 146.66666666666666) internal successors, (440), 3 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:45:05,158 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 164.0) internal successors, (656), 4 states have internal predecessors, (656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:45:05,158 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 164.0) internal successors, (656), 4 states have internal predecessors, (656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:45:05,158 INFO L175 Difference]: Start difference. First operand has 189 places, 178 transitions, 590 flow. Second operand 3 states and 440 transitions. [2023-11-29 06:45:05,158 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 191 places, 184 transitions, 695 flow [2023-11-29 06:45:05,186 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 189 places, 184 transitions, 681 flow, removed 2 selfloop flow, removed 2 redundant places. [2023-11-29 06:45:05,188 INFO L231 Difference]: Finished difference. Result has 191 places, 181 transitions, 618 flow [2023-11-29 06:45:05,189 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=576, PETRI_DIFFERENCE_MINUEND_PLACES=187, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=178, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=173, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=618, PETRI_PLACES=191, PETRI_TRANSITIONS=181} [2023-11-29 06:45:05,189 INFO L281 CegarLoopForPetriNet]: 166 programPoint places, 25 predicate places. [2023-11-29 06:45:05,189 INFO L495 AbstractCegarLoop]: Abstraction has has 191 places, 181 transitions, 618 flow [2023-11-29 06:45:05,189 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 138.66666666666666) internal successors, (416), 3 states have internal predecessors, (416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:45:05,189 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:45:05,189 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:45:05,190 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2023-11-29 06:45:05,190 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2023-11-29 06:45:05,190 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:45:05,190 INFO L85 PathProgramCache]: Analyzing trace with hash 1967735547, now seen corresponding path program 1 times [2023-11-29 06:45:05,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:45:05,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975977733] [2023-11-29 06:45:05,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:45:05,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:45:05,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 06:45:05,234 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 06:45:05,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 06:45:05,266 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 06:45:05,266 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-29 06:45:05,266 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 11 remaining) [2023-11-29 06:45:05,266 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (9 of 11 remaining) [2023-11-29 06:45:05,267 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (8 of 11 remaining) [2023-11-29 06:45:05,267 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (7 of 11 remaining) [2023-11-29 06:45:05,267 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (6 of 11 remaining) [2023-11-29 06:45:05,267 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (5 of 11 remaining) [2023-11-29 06:45:05,267 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (4 of 11 remaining) [2023-11-29 06:45:05,267 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (3 of 11 remaining) [2023-11-29 06:45:05,267 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (2 of 11 remaining) [2023-11-29 06:45:05,267 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 11 remaining) [2023-11-29 06:45:05,267 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 11 remaining) [2023-11-29 06:45:05,268 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2023-11-29 06:45:05,268 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:45:05,268 WARN L233 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-29 06:45:05,268 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2023-11-29 06:45:05,292 INFO L144 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2023-11-29 06:45:05,295 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 185 places, 182 transitions, 419 flow [2023-11-29 06:45:05,489 INFO L124 PetriNetUnfolderBase]: 93/1622 cut-off events. [2023-11-29 06:45:05,490 INFO L125 PetriNetUnfolderBase]: For 110/110 co-relation queries the response was YES. [2023-11-29 06:45:05,494 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1728 conditions, 1622 events. 93/1622 cut-off events. For 110/110 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 8479 event pairs, 23 based on Foata normal form. 0/1406 useless extension candidates. Maximal degree in co-relation 925. Up to 80 conditions per place. [2023-11-29 06:45:05,494 INFO L82 GeneralOperation]: Start removeDead. Operand has 185 places, 182 transitions, 419 flow [2023-11-29 06:45:05,499 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 185 places, 182 transitions, 419 flow [2023-11-29 06:45:05,500 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 06:45:05,500 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=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;@5f1ae0b7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 06:45:05,500 INFO L358 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2023-11-29 06:45:05,504 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-29 06:45:05,504 INFO L124 PetriNetUnfolderBase]: 3/52 cut-off events. [2023-11-29 06:45:05,504 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-29 06:45:05,504 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:45:05,504 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:45:05,504 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2023-11-29 06:45:05,504 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:45:05,505 INFO L85 PathProgramCache]: Analyzing trace with hash 134074183, now seen corresponding path program 1 times [2023-11-29 06:45:05,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:45:05,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744413156] [2023-11-29 06:45:05,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:45:05,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:45:05,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:45:05,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:45:05,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:45:05,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744413156] [2023-11-29 06:45:05,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744413156] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:45:05,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:45:05,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 06:45:05,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356781784] [2023-11-29 06:45:05,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:45:05,631 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 06:45:05,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:45:05,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 06:45:05,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 06:45:05,793 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 137 out of 182 [2023-11-29 06:45:05,794 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 185 places, 182 transitions, 419 flow. Second operand has 6 states, 6 states have (on average 138.16666666666666) internal successors, (829), 6 states have internal predecessors, (829), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:45:05,794 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 06:45:05,794 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 137 of 182 [2023-11-29 06:45:05,794 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 06:45:23,758 INFO L124 PetriNetUnfolderBase]: 39523/136623 cut-off events. [2023-11-29 06:45:23,758 INFO L125 PetriNetUnfolderBase]: For 5419/5419 co-relation queries the response was YES. [2023-11-29 06:45:24,453 INFO L83 FinitePrefix]: Finished finitePrefix Result has 193351 conditions, 136623 events. 39523/136623 cut-off events. For 5419/5419 co-relation queries the response was YES. Maximal size of possible extension queue 2868. Compared 2027970 event pairs, 33951 based on Foata normal form. 1172/127390 useless extension candidates. Maximal degree in co-relation 64008. Up to 47594 conditions per place. [2023-11-29 06:45:24,927 INFO L140 encePairwiseOnDemand]: 163/182 looper letters, 48 selfloop transitions, 13 changer transitions 1/198 dead transitions. [2023-11-29 06:45:24,927 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 187 places, 198 transitions, 573 flow [2023-11-29 06:45:24,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 06:45:24,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 06:45:24,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 891 transitions. [2023-11-29 06:45:24,928 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8159340659340659 [2023-11-29 06:45:24,928 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 891 transitions. [2023-11-29 06:45:24,928 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 891 transitions. [2023-11-29 06:45:24,929 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:45:24,929 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 891 transitions. [2023-11-29 06:45:24,930 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 148.5) internal successors, (891), 6 states have internal predecessors, (891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:45:24,932 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 182.0) internal successors, (1274), 7 states have internal predecessors, (1274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:45:24,932 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 182.0) internal successors, (1274), 7 states have internal predecessors, (1274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:45:24,932 INFO L175 Difference]: Start difference. First operand has 185 places, 182 transitions, 419 flow. Second operand 6 states and 891 transitions. [2023-11-29 06:45:24,932 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 187 places, 198 transitions, 573 flow [2023-11-29 06:45:24,945 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 187 places, 198 transitions, 573 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-29 06:45:24,947 INFO L231 Difference]: Finished difference. Result has 191 places, 187 transitions, 501 flow [2023-11-29 06:45:24,948 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=407, PETRI_DIFFERENCE_MINUEND_PLACES=182, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=176, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=163, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=501, PETRI_PLACES=191, PETRI_TRANSITIONS=187} [2023-11-29 06:45:24,948 INFO L281 CegarLoopForPetriNet]: 185 programPoint places, 6 predicate places. [2023-11-29 06:45:24,948 INFO L495 AbstractCegarLoop]: Abstraction has has 191 places, 187 transitions, 501 flow [2023-11-29 06:45:24,948 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 138.16666666666666) internal successors, (829), 6 states have internal predecessors, (829), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:45:24,948 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:45:24,948 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:45:24,948 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2023-11-29 06:45:24,948 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2023-11-29 06:45:24,949 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:45:24,949 INFO L85 PathProgramCache]: Analyzing trace with hash 465107753, now seen corresponding path program 1 times [2023-11-29 06:45:24,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:45:24,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437752254] [2023-11-29 06:45:24,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:45:24,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:45:24,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:45:24,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:45:24,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:45:24,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437752254] [2023-11-29 06:45:24,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [437752254] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:45:24,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:45:24,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 06:45:24,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302758128] [2023-11-29 06:45:24,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:45:24,971 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 06:45:24,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:45:24,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 06:45:24,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 06:45:24,987 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 182 [2023-11-29 06:45:24,988 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 191 places, 187 transitions, 501 flow. Second operand has 3 states, 3 states have (on average 151.66666666666666) internal successors, (455), 3 states have internal predecessors, (455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:45:24,988 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 06:45:24,988 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 182 [2023-11-29 06:45:24,988 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 06:45:47,889 INFO L124 PetriNetUnfolderBase]: 51884/150186 cut-off events. [2023-11-29 06:45:47,889 INFO L125 PetriNetUnfolderBase]: For 17788/30205 co-relation queries the response was YES. [2023-11-29 06:45:48,607 INFO L83 FinitePrefix]: Finished finitePrefix Result has 234920 conditions, 150186 events. 51884/150186 cut-off events. For 17788/30205 co-relation queries the response was YES. Maximal size of possible extension queue 3549. Compared 2141198 event pairs, 29580 based on Foata normal form. 0/137883 useless extension candidates. Maximal degree in co-relation 219192. Up to 48608 conditions per place. [2023-11-29 06:45:49,204 INFO L140 encePairwiseOnDemand]: 174/182 looper letters, 37 selfloop transitions, 7 changer transitions 4/203 dead transitions. [2023-11-29 06:45:49,204 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 192 places, 203 transitions, 621 flow [2023-11-29 06:45:49,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 06:45:49,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 06:45:49,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 498 transitions. [2023-11-29 06:45:49,205 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9120879120879121 [2023-11-29 06:45:49,205 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 498 transitions. [2023-11-29 06:45:49,205 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 498 transitions. [2023-11-29 06:45:49,205 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:45:49,205 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 498 transitions. [2023-11-29 06:45:49,206 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 166.0) internal successors, (498), 3 states have internal predecessors, (498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:45:49,207 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 182.0) internal successors, (728), 4 states have internal predecessors, (728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:45:49,207 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 182.0) internal successors, (728), 4 states have internal predecessors, (728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:45:49,207 INFO L175 Difference]: Start difference. First operand has 191 places, 187 transitions, 501 flow. Second operand 3 states and 498 transitions. [2023-11-29 06:45:49,207 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 192 places, 203 transitions, 621 flow [2023-11-29 06:45:51,706 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 191 places, 203 transitions, 617 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-29 06:45:51,708 INFO L231 Difference]: Finished difference. Result has 193 places, 189 transitions, 529 flow [2023-11-29 06:45:51,708 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=497, PETRI_DIFFERENCE_MINUEND_PLACES=189, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=187, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=180, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=529, PETRI_PLACES=193, PETRI_TRANSITIONS=189} [2023-11-29 06:45:51,709 INFO L281 CegarLoopForPetriNet]: 185 programPoint places, 8 predicate places. [2023-11-29 06:45:51,709 INFO L495 AbstractCegarLoop]: Abstraction has has 193 places, 189 transitions, 529 flow [2023-11-29 06:45:51,709 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 151.66666666666666) internal successors, (455), 3 states have internal predecessors, (455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:45:51,709 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:45:51,709 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:45:51,709 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2023-11-29 06:45:51,709 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2023-11-29 06:45:51,709 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:45:51,709 INFO L85 PathProgramCache]: Analyzing trace with hash 2048958759, now seen corresponding path program 1 times [2023-11-29 06:45:51,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:45:51,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493147343] [2023-11-29 06:45:51,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:45:51,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:45:51,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:45:51,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:45:51,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:45:51,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493147343] [2023-11-29 06:45:51,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [493147343] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:45:51,754 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:45:51,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 06:45:51,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42779452] [2023-11-29 06:45:51,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:45:51,754 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 06:45:51,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:45:51,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 06:45:51,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 06:45:51,804 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 148 out of 182 [2023-11-29 06:45:51,805 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 193 places, 189 transitions, 529 flow. Second operand has 5 states, 5 states have (on average 149.4) internal successors, (747), 5 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) [2023-11-29 06:45:51,805 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 06:45:51,805 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 148 of 182 [2023-11-29 06:45:51,805 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 06:46:20,031 INFO L124 PetriNetUnfolderBase]: 59384/190886 cut-off events. [2023-11-29 06:46:20,031 INFO L125 PetriNetUnfolderBase]: For 14958/15177 co-relation queries the response was YES. [2023-11-29 06:46:21,178 INFO L83 FinitePrefix]: Finished finitePrefix Result has 294795 conditions, 190886 events. 59384/190886 cut-off events. For 14958/15177 co-relation queries the response was YES. Maximal size of possible extension queue 3829. Compared 2903204 event pairs, 48714 based on Foata normal form. 1/166930 useless extension candidates. Maximal degree in co-relation 184183. Up to 62672 conditions per place. [2023-11-29 06:46:22,011 INFO L140 encePairwiseOnDemand]: 175/182 looper letters, 32 selfloop transitions, 2 changer transitions 4/192 dead transitions. [2023-11-29 06:46:22,011 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 198 places, 192 transitions, 597 flow [2023-11-29 06:46:22,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 06:46:22,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 06:46:22,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 927 transitions. [2023-11-29 06:46:22,013 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8489010989010989 [2023-11-29 06:46:22,013 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 927 transitions. [2023-11-29 06:46:22,013 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 927 transitions. [2023-11-29 06:46:22,013 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:46:22,013 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 927 transitions. [2023-11-29 06:46:22,014 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 154.5) internal successors, (927), 6 states have internal predecessors, (927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:46:22,015 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 182.0) internal successors, (1274), 7 states have internal predecessors, (1274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:46:22,015 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 182.0) internal successors, (1274), 7 states have internal predecessors, (1274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:46:22,016 INFO L175 Difference]: Start difference. First operand has 193 places, 189 transitions, 529 flow. Second operand 6 states and 927 transitions. [2023-11-29 06:46:22,016 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 198 places, 192 transitions, 597 flow [2023-11-29 06:46:23,531 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 196 places, 192 transitions, 569 flow, removed 7 selfloop flow, removed 2 redundant places. [2023-11-29 06:46:23,533 INFO L231 Difference]: Finished difference. Result has 200 places, 186 transitions, 499 flow [2023-11-29 06:46:23,533 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=479, PETRI_DIFFERENCE_MINUEND_PLACES=191, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=185, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=183, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=499, PETRI_PLACES=200, PETRI_TRANSITIONS=186} [2023-11-29 06:46:23,533 INFO L281 CegarLoopForPetriNet]: 185 programPoint places, 15 predicate places. [2023-11-29 06:46:23,533 INFO L495 AbstractCegarLoop]: Abstraction has has 200 places, 186 transitions, 499 flow [2023-11-29 06:46:23,534 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 149.4) internal successors, (747), 5 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) [2023-11-29 06:46:23,534 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:46:23,534 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:46:23,534 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2023-11-29 06:46:23,534 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2023-11-29 06:46:23,534 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:46:23,534 INFO L85 PathProgramCache]: Analyzing trace with hash -1590552356, now seen corresponding path program 1 times [2023-11-29 06:46:23,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:46:23,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018822607] [2023-11-29 06:46:23,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:46:23,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:46:23,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:46:23,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:46:23,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:46:23,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2018822607] [2023-11-29 06:46:23,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2018822607] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:46:23,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:46:23,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 06:46:23,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384698621] [2023-11-29 06:46:23,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:46:23,556 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 06:46:23,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:46:23,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 06:46:23,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 06:46:23,573 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 182 [2023-11-29 06:46:23,573 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 200 places, 186 transitions, 499 flow. Second operand has 3 states, 3 states have (on average 150.66666666666666) internal successors, (452), 3 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:46:23,573 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 06:46:23,573 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 182 [2023-11-29 06:46:23,574 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand