./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-race-challenges/thread-join-counter-inner-race-5.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb33c4af-e2ff-4c9f-bc68-2767d0234e19/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb33c4af-e2ff-4c9f-bc68-2767d0234e19/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb33c4af-e2ff-4c9f-bc68-2767d0234e19/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb33c4af-e2ff-4c9f-bc68-2767d0234e19/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-race-challenges/thread-join-counter-inner-race-5.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb33c4af-e2ff-4c9f-bc68-2767d0234e19/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb33c4af-e2ff-4c9f-bc68-2767d0234e19/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9c9074e122b1777f395c954ed30ab626f529c102cb2614b7e83435b6d498a843 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:49:00,263 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:49:00,335 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb33c4af-e2ff-4c9f-bc68-2767d0234e19/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-28 03:49:00,341 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:49:00,342 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:49:00,387 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:49:00,389 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:49:00,390 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:49:00,390 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 03:49:00,390 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 03:49:00,392 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:49:00,392 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:49:00,392 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:49:00,392 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:49:00,392 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 03:49:00,393 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 03:49:00,394 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 03:49:00,394 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 03:49:00,394 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:49:00,394 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 03:49:00,394 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 03:49:00,394 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 03:49:00,395 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-28 03:49:00,395 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 03:49:00,395 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 03:49:00,395 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 03:49:00,395 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:49:00,396 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:49:00,396 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 03:49:00,396 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:49:00,396 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:49:00,397 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:49:00,397 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:49:00,397 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:49:00,398 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:49:00,398 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:49:00,398 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:49:00,398 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 03:49:00,398 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 03:49:00,398 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 03:49:00,398 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 03:49:00,398 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 03:49:00,399 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 03:49:00,399 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 03:49:00,399 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 03:49:00,399 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 03:49:00,399 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_cb33c4af-e2ff-4c9f-bc68-2767d0234e19/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9c9074e122b1777f395c954ed30ab626f529c102cb2614b7e83435b6d498a843 [2024-11-28 03:49:00,771 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:49:00,781 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:49:00,784 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:49:00,786 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:49:00,787 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:49:00,789 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb33c4af-e2ff-4c9f-bc68-2767d0234e19/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/pthread-race-challenges/thread-join-counter-inner-race-5.i [2024-11-28 03:49:04,172 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb33c4af-e2ff-4c9f-bc68-2767d0234e19/bin/uautomizer-verify-aQ6SnzHsRB/data/3b4b2a822/3c28072f1ac3416c8cd81f5d9919cdf6/FLAG5bad79572 [2024-11-28 03:49:04,465 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:49:04,466 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb33c4af-e2ff-4c9f-bc68-2767d0234e19/sv-benchmarks/c/pthread-race-challenges/thread-join-counter-inner-race-5.i [2024-11-28 03:49:04,481 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb33c4af-e2ff-4c9f-bc68-2767d0234e19/bin/uautomizer-verify-aQ6SnzHsRB/data/3b4b2a822/3c28072f1ac3416c8cd81f5d9919cdf6/FLAG5bad79572 [2024-11-28 03:49:04,498 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb33c4af-e2ff-4c9f-bc68-2767d0234e19/bin/uautomizer-verify-aQ6SnzHsRB/data/3b4b2a822/3c28072f1ac3416c8cd81f5d9919cdf6 [2024-11-28 03:49:04,500 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:49:04,502 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:49:04,503 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:49:04,504 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:49:04,510 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:49:04,511 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:49:04" (1/1) ... [2024-11-28 03:49:04,512 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46e5ed87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:49:04, skipping insertion in model container [2024-11-28 03:49:04,512 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:49:04" (1/1) ... [2024-11-28 03:49:04,545 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:49:05,038 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:49:05,084 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:49:05,157 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:49:05,215 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:49:05,215 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:49:05 WrapperNode [2024-11-28 03:49:05,217 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:49:05,218 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:49:05,220 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:49:05,220 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:49:05,229 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:49:05" (1/1) ... [2024-11-28 03:49:05,252 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:49:05" (1/1) ... [2024-11-28 03:49:05,288 INFO L138 Inliner]: procedures = 159, calls = 26, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 181 [2024-11-28 03:49:05,288 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:49:05,289 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:49:05,289 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:49:05,290 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:49:05,299 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:49:05" (1/1) ... [2024-11-28 03:49:05,299 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:49:05" (1/1) ... [2024-11-28 03:49:05,304 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:49:05" (1/1) ... [2024-11-28 03:49:05,304 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:49:05" (1/1) ... [2024-11-28 03:49:05,315 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:49:05" (1/1) ... [2024-11-28 03:49:05,316 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:49:05" (1/1) ... [2024-11-28 03:49:05,320 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:49:05" (1/1) ... [2024-11-28 03:49:05,322 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:49:05" (1/1) ... [2024-11-28 03:49:05,323 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:49:05" (1/1) ... [2024-11-28 03:49:05,326 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:49:05,327 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:49:05,328 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:49:05,328 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:49:05,329 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:49:05" (1/1) ... [2024-11-28 03:49:05,343 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:49:05,368 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb33c4af-e2ff-4c9f-bc68-2767d0234e19/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:49:05,389 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb33c4af-e2ff-4c9f-bc68-2767d0234e19/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 03:49:05,395 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb33c4af-e2ff-4c9f-bc68-2767d0234e19/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 03:49:05,420 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-28 03:49:05,420 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 03:49:05,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-28 03:49:05,420 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2024-11-28 03:49:05,420 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2024-11-28 03:49:05,420 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-28 03:49:05,420 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:49:05,420 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:49:05,422 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-28 03:49:05,634 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:49:05,637 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:49:06,168 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-28 03:49:06,169 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 03:49:06,223 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 03:49:06,224 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 03:49:06,224 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:49:06 BoogieIcfgContainer [2024-11-28 03:49:06,224 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 03:49:06,227 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 03:49:06,231 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 03:49:06,238 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 03:49:06,238 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:49:04" (1/3) ... [2024-11-28 03:49:06,239 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@392063e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:49:06, skipping insertion in model container [2024-11-28 03:49:06,239 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:49:05" (2/3) ... [2024-11-28 03:49:06,239 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@392063e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:49:06, skipping insertion in model container [2024-11-28 03:49:06,239 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:49:06" (3/3) ... [2024-11-28 03:49:06,241 INFO L128 eAbstractionObserver]: Analyzing ICFG thread-join-counter-inner-race-5.i [2024-11-28 03:49:06,261 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 03:49:06,263 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG thread-join-counter-inner-race-5.i that has 2 procedures, 230 locations, 1 initial locations, 2 loop locations, and 7 error locations. [2024-11-28 03:49:06,263 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-28 03:49:06,399 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-28 03:49:06,447 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 233 places, 234 transitions, 472 flow [2024-11-28 03:49:06,595 INFO L124 PetriNetUnfolderBase]: 7/261 cut-off events. [2024-11-28 03:49:06,602 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 03:49:06,612 INFO L83 FinitePrefix]: Finished finitePrefix Result has 265 conditions, 261 events. 7/261 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 185 event pairs, 0 based on Foata normal form. 0/243 useless extension candidates. Maximal degree in co-relation 178. Up to 4 conditions per place. [2024-11-28 03:49:06,612 INFO L82 GeneralOperation]: Start removeDead. Operand has 233 places, 234 transitions, 472 flow [2024-11-28 03:49:06,620 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 233 places, 234 transitions, 472 flow [2024-11-28 03:49:06,630 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:49:06,644 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@730dbf9b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:49:06,645 INFO L334 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2024-11-28 03:49:06,728 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 03:49:06,728 INFO L124 PetriNetUnfolderBase]: 2/164 cut-off events. [2024-11-28 03:49:06,728 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 03:49:06,732 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:49:06,733 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:49:06,733 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 10 more)] === [2024-11-28 03:49:06,742 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:49:06,743 INFO L85 PathProgramCache]: Analyzing trace with hash -1492300459, now seen corresponding path program 1 times [2024-11-28 03:49:06,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:49:06,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110983973] [2024-11-28 03:49:06,754 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:49:06,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:49:07,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:49:07,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:49:07,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:49:07,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110983973] [2024-11-28 03:49:07,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [110983973] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:49:07,380 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:49:07,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:49:07,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849727262] [2024-11-28 03:49:07,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:49:07,394 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:49:07,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:49:07,435 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:49:07,436 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:49:07,487 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 209 out of 234 [2024-11-28 03:49:07,494 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 233 places, 234 transitions, 472 flow. Second operand has 3 states, 3 states have (on average 210.0) internal successors, (630), 3 states have internal predecessors, (630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:49:07,494 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:49:07,494 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 209 of 234 [2024-11-28 03:49:07,495 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:49:07,933 INFO L124 PetriNetUnfolderBase]: 122/754 cut-off events. [2024-11-28 03:49:07,933 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-28 03:49:07,937 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1022 conditions, 754 events. 122/754 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 3264 event pairs, 29 based on Foata normal form. 13/702 useless extension candidates. Maximal degree in co-relation 832. Up to 167 conditions per place. [2024-11-28 03:49:07,943 INFO L140 encePairwiseOnDemand]: 222/234 looper letters, 28 selfloop transitions, 6 changer transitions 1/243 dead transitions. [2024-11-28 03:49:07,943 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 233 places, 243 transitions, 558 flow [2024-11-28 03:49:07,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:49:07,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:49:07,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 669 transitions. [2024-11-28 03:49:07,964 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9529914529914529 [2024-11-28 03:49:07,966 INFO L175 Difference]: Start difference. First operand has 233 places, 234 transitions, 472 flow. Second operand 3 states and 669 transitions. [2024-11-28 03:49:07,969 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 233 places, 243 transitions, 558 flow [2024-11-28 03:49:07,978 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 233 places, 243 transitions, 558 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-28 03:49:07,987 INFO L231 Difference]: Finished difference. Result has 235 places, 232 transitions, 502 flow [2024-11-28 03:49:07,990 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=234, PETRI_DIFFERENCE_MINUEND_FLOW=462, PETRI_DIFFERENCE_MINUEND_PLACES=231, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=229, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=223, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=502, PETRI_PLACES=235, PETRI_TRANSITIONS=232} [2024-11-28 03:49:07,995 INFO L279 CegarLoopForPetriNet]: 233 programPoint places, 2 predicate places. [2024-11-28 03:49:07,995 INFO L471 AbstractCegarLoop]: Abstraction has has 235 places, 232 transitions, 502 flow [2024-11-28 03:49:07,997 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 210.0) internal successors, (630), 3 states have internal predecessors, (630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:49:07,997 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:49:07,998 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:49:07,998 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 03:49:07,999 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 10 more)] === [2024-11-28 03:49:08,002 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:49:08,002 INFO L85 PathProgramCache]: Analyzing trace with hash -1025394332, now seen corresponding path program 1 times [2024-11-28 03:49:08,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:49:08,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250896646] [2024-11-28 03:49:08,002 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:49:08,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:49:08,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:49:08,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:49:08,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:49:08,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250896646] [2024-11-28 03:49:08,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [250896646] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:49:08,359 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:49:08,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:49:08,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113361820] [2024-11-28 03:49:08,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:49:08,365 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:49:08,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:49:08,366 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:49:08,366 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:49:08,385 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 216 out of 234 [2024-11-28 03:49:08,386 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 235 places, 232 transitions, 502 flow. Second operand has 3 states, 3 states have (on average 217.33333333333334) internal successors, (652), 3 states have internal predecessors, (652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:49:08,386 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:49:08,386 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 216 of 234 [2024-11-28 03:49:08,387 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:49:08,635 INFO L124 PetriNetUnfolderBase]: 122/847 cut-off events. [2024-11-28 03:49:08,635 INFO L125 PetriNetUnfolderBase]: For 33/33 co-relation queries the response was YES. [2024-11-28 03:49:08,639 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1203 conditions, 847 events. 122/847 cut-off events. For 33/33 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 4131 event pairs, 56 based on Foata normal form. 0/777 useless extension candidates. Maximal degree in co-relation 1010. Up to 170 conditions per place. [2024-11-28 03:49:08,643 INFO L140 encePairwiseOnDemand]: 230/234 looper letters, 19 selfloop transitions, 3 changer transitions 1/240 dead transitions. [2024-11-28 03:49:08,643 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 236 places, 240 transitions, 564 flow [2024-11-28 03:49:08,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:49:08,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:49:08,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 672 transitions. [2024-11-28 03:49:08,646 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9572649572649573 [2024-11-28 03:49:08,647 INFO L175 Difference]: Start difference. First operand has 235 places, 232 transitions, 502 flow. Second operand 3 states and 672 transitions. [2024-11-28 03:49:08,647 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 236 places, 240 transitions, 564 flow [2024-11-28 03:49:08,650 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 234 places, 240 transitions, 552 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 03:49:08,654 INFO L231 Difference]: Finished difference. Result has 236 places, 234 transitions, 512 flow [2024-11-28 03:49:08,655 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=234, PETRI_DIFFERENCE_MINUEND_FLOW=490, PETRI_DIFFERENCE_MINUEND_PLACES=232, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=232, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=229, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=512, PETRI_PLACES=236, PETRI_TRANSITIONS=234} [2024-11-28 03:49:08,656 INFO L279 CegarLoopForPetriNet]: 233 programPoint places, 3 predicate places. [2024-11-28 03:49:08,656 INFO L471 AbstractCegarLoop]: Abstraction has has 236 places, 234 transitions, 512 flow [2024-11-28 03:49:08,657 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 217.33333333333334) internal successors, (652), 3 states have internal predecessors, (652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:49:08,657 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:49:08,657 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:49:08,657 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 03:49:08,657 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting threadErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 10 more)] === [2024-11-28 03:49:08,659 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:49:08,659 INFO L85 PathProgramCache]: Analyzing trace with hash 723826699, now seen corresponding path program 1 times [2024-11-28 03:49:08,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:49:08,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860009639] [2024-11-28 03:49:08,659 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:49:08,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:49:08,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:49:08,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:49:08,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:49:08,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860009639] [2024-11-28 03:49:08,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [860009639] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:49:08,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:49:08,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:49:08,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494903735] [2024-11-28 03:49:08,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:49:08,917 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:49:08,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:49:08,918 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:49:08,918 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:49:08,966 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 211 out of 234 [2024-11-28 03:49:08,968 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 236 places, 234 transitions, 512 flow. Second operand has 3 states, 3 states have (on average 213.0) internal successors, (639), 3 states have internal predecessors, (639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:49:08,972 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:49:08,972 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 211 of 234 [2024-11-28 03:49:08,972 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:49:09,276 INFO L124 PetriNetUnfolderBase]: 146/883 cut-off events. [2024-11-28 03:49:09,277 INFO L125 PetriNetUnfolderBase]: For 74/74 co-relation queries the response was YES. [2024-11-28 03:49:09,279 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1346 conditions, 883 events. 146/883 cut-off events. For 74/74 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 4259 event pairs, 73 based on Foata normal form. 0/822 useless extension candidates. Maximal degree in co-relation 1150. Up to 267 conditions per place. [2024-11-28 03:49:09,282 INFO L140 encePairwiseOnDemand]: 229/234 looper letters, 26 selfloop transitions, 5 changer transitions 0/242 dead transitions. [2024-11-28 03:49:09,283 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 238 places, 242 transitions, 594 flow [2024-11-28 03:49:09,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:49:09,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:49:09,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 661 transitions. [2024-11-28 03:49:09,286 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9415954415954416 [2024-11-28 03:49:09,286 INFO L175 Difference]: Start difference. First operand has 236 places, 234 transitions, 512 flow. Second operand 3 states and 661 transitions. [2024-11-28 03:49:09,286 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 238 places, 242 transitions, 594 flow [2024-11-28 03:49:09,290 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 236 places, 242 transitions, 588 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 03:49:09,294 INFO L231 Difference]: Finished difference. Result has 238 places, 238 transitions, 548 flow [2024-11-28 03:49:09,295 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=234, PETRI_DIFFERENCE_MINUEND_FLOW=506, PETRI_DIFFERENCE_MINUEND_PLACES=234, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=234, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=229, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=548, PETRI_PLACES=238, PETRI_TRANSITIONS=238} [2024-11-28 03:49:09,296 INFO L279 CegarLoopForPetriNet]: 233 programPoint places, 5 predicate places. [2024-11-28 03:49:09,296 INFO L471 AbstractCegarLoop]: Abstraction has has 238 places, 238 transitions, 548 flow [2024-11-28 03:49:09,297 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 213.0) internal successors, (639), 3 states have internal predecessors, (639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:49:09,297 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:49:09,297 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:49:09,297 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 03:49:09,298 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 10 more)] === [2024-11-28 03:49:09,299 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:49:09,299 INFO L85 PathProgramCache]: Analyzing trace with hash 367709802, now seen corresponding path program 1 times [2024-11-28 03:49:09,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:49:09,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691917265] [2024-11-28 03:49:09,300 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:49:09,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:49:09,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:49:09,378 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:49:09,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:49:09,586 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 03:49:09,586 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 03:49:09,587 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 13 remaining) [2024-11-28 03:49:09,590 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (11 of 13 remaining) [2024-11-28 03:49:09,590 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (10 of 13 remaining) [2024-11-28 03:49:09,592 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (9 of 13 remaining) [2024-11-28 03:49:09,595 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (8 of 13 remaining) [2024-11-28 03:49:09,596 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (7 of 13 remaining) [2024-11-28 03:49:09,596 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONDATA_RACE (6 of 13 remaining) [2024-11-28 03:49:09,596 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr4ASSERT_VIOLATIONDATA_RACE (5 of 13 remaining) [2024-11-28 03:49:09,596 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (4 of 13 remaining) [2024-11-28 03:49:09,596 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (3 of 13 remaining) [2024-11-28 03:49:09,596 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (2 of 13 remaining) [2024-11-28 03:49:09,597 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONDATA_RACE (1 of 13 remaining) [2024-11-28 03:49:09,597 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr4ASSERT_VIOLATIONDATA_RACE (0 of 13 remaining) [2024-11-28 03:49:09,597 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 03:49:09,597 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-28 03:49:09,602 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-28 03:49:09,602 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-28 03:49:09,659 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-28 03:49:09,672 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 282 places, 281 transitions, 572 flow [2024-11-28 03:49:09,754 INFO L124 PetriNetUnfolderBase]: 10/343 cut-off events. [2024-11-28 03:49:09,754 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-28 03:49:09,756 INFO L83 FinitePrefix]: Finished finitePrefix Result has 351 conditions, 343 events. 10/343 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 470 event pairs, 0 based on Foata normal form. 0/314 useless extension candidates. Maximal degree in co-relation 262. Up to 6 conditions per place. [2024-11-28 03:49:09,756 INFO L82 GeneralOperation]: Start removeDead. Operand has 282 places, 281 transitions, 572 flow [2024-11-28 03:49:09,763 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 282 places, 281 transitions, 572 flow [2024-11-28 03:49:09,764 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:49:09,766 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@730dbf9b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:49:09,767 INFO L334 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2024-11-28 03:49:09,791 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 03:49:09,792 INFO L124 PetriNetUnfolderBase]: 2/164 cut-off events. [2024-11-28 03:49:09,792 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 03:49:09,792 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:49:09,792 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:49:09,792 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 15 more)] === [2024-11-28 03:49:09,794 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:49:09,794 INFO L85 PathProgramCache]: Analyzing trace with hash -262553138, now seen corresponding path program 1 times [2024-11-28 03:49:09,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:49:09,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587693186] [2024-11-28 03:49:09,795 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:49:09,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:49:09,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:49:09,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:49:09,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:49:09,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587693186] [2024-11-28 03:49:09,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [587693186] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:49:09,983 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:49:09,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:49:09,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984118881] [2024-11-28 03:49:09,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:49:09,984 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:49:09,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:49:09,985 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:49:09,985 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:49:10,064 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 241 out of 281 [2024-11-28 03:49:10,066 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 282 places, 281 transitions, 572 flow. Second operand has 3 states, 3 states have (on average 242.0) internal successors, (726), 3 states have internal predecessors, (726), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:49:10,066 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:49:10,066 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 241 of 281 [2024-11-28 03:49:10,066 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:49:13,424 INFO L124 PetriNetUnfolderBase]: 4627/13176 cut-off events. [2024-11-28 03:49:13,425 INFO L125 PetriNetUnfolderBase]: For 41/41 co-relation queries the response was YES. [2024-11-28 03:49:13,477 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20586 conditions, 13176 events. 4627/13176 cut-off events. For 41/41 co-relation queries the response was YES. Maximal size of possible extension queue 339. Compared 131091 event pairs, 1551 based on Foata normal form. 263/11950 useless extension candidates. Maximal degree in co-relation 19499. Up to 4243 conditions per place. [2024-11-28 03:49:13,646 INFO L140 encePairwiseOnDemand]: 259/281 looper letters, 54 selfloop transitions, 14 changer transitions 1/309 dead transitions. [2024-11-28 03:49:13,647 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 284 places, 309 transitions, 769 flow [2024-11-28 03:49:13,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:49:13,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:49:13,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 801 transitions. [2024-11-28 03:49:13,653 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9501779359430605 [2024-11-28 03:49:13,654 INFO L175 Difference]: Start difference. First operand has 282 places, 281 transitions, 572 flow. Second operand 3 states and 801 transitions. [2024-11-28 03:49:13,654 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 284 places, 309 transitions, 769 flow [2024-11-28 03:49:13,656 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 284 places, 309 transitions, 769 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-28 03:49:13,662 INFO L231 Difference]: Finished difference. Result has 286 places, 291 transitions, 686 flow [2024-11-28 03:49:13,663 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=281, PETRI_DIFFERENCE_MINUEND_FLOW=566, PETRI_DIFFERENCE_MINUEND_PLACES=282, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=278, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=264, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=686, PETRI_PLACES=286, PETRI_TRANSITIONS=291} [2024-11-28 03:49:13,666 INFO L279 CegarLoopForPetriNet]: 282 programPoint places, 4 predicate places. [2024-11-28 03:49:13,667 INFO L471 AbstractCegarLoop]: Abstraction has has 286 places, 291 transitions, 686 flow [2024-11-28 03:49:13,668 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 242.0) internal successors, (726), 3 states have internal predecessors, (726), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:49:13,668 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:49:13,668 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:49:13,669 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 03:49:13,669 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 15 more)] === [2024-11-28 03:49:13,670 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:49:13,670 INFO L85 PathProgramCache]: Analyzing trace with hash 968094564, now seen corresponding path program 1 times [2024-11-28 03:49:13,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:49:13,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880305579] [2024-11-28 03:49:13,671 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:49:13,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:49:13,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:49:13,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:49:13,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:49:13,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880305579] [2024-11-28 03:49:13,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [880305579] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:49:13,859 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:49:13,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:49:13,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440342663] [2024-11-28 03:49:13,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:49:13,864 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:49:13,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:49:13,865 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:49:13,865 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:49:13,887 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 255 out of 281 [2024-11-28 03:49:13,889 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 286 places, 291 transitions, 686 flow. Second operand has 3 states, 3 states have (on average 256.3333333333333) internal successors, (769), 3 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:49:13,889 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:49:13,889 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 255 of 281 [2024-11-28 03:49:13,889 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:49:17,145 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([782] L714-5-->L713-1: Formula: (= 0 |v_#race~threads_alive~0_1|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_1|} AuxVars[] AssignedVars[#race~threads_alive~0][173], [Black: 285#true, 281#true, 225#L713-1true, 99#L699-1true, 283#true, 290#true, 217#L699-6true, 287#(= |#race~threads_alive~0| 0)]) [2024-11-28 03:49:17,146 INFO L294 olderBase$Statistics]: this new event has 250 ancestors and is cut-off event [2024-11-28 03:49:17,146 INFO L297 olderBase$Statistics]: existing Event has 245 ancestors and is cut-off event [2024-11-28 03:49:17,146 INFO L297 olderBase$Statistics]: existing Event has 250 ancestors and is cut-off event [2024-11-28 03:49:17,146 INFO L297 olderBase$Statistics]: existing Event has 250 ancestors and is cut-off event [2024-11-28 03:49:17,184 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([782] L714-5-->L713-1: Formula: (= 0 |v_#race~threads_alive~0_1|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_1|} AuxVars[] AssignedVars[#race~threads_alive~0][173], [281#true, Black: 285#true, 225#L713-1true, 283#true, 290#true, 217#L699-6true, 287#(= |#race~threads_alive~0| 0), 23#L699-2true]) [2024-11-28 03:49:17,185 INFO L294 olderBase$Statistics]: this new event has 251 ancestors and is cut-off event [2024-11-28 03:49:17,185 INFO L297 olderBase$Statistics]: existing Event has 251 ancestors and is cut-off event [2024-11-28 03:49:17,185 INFO L297 olderBase$Statistics]: existing Event has 251 ancestors and is cut-off event [2024-11-28 03:49:17,185 INFO L297 olderBase$Statistics]: existing Event has 246 ancestors and is cut-off event [2024-11-28 03:49:17,287 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([782] L714-5-->L713-1: Formula: (= 0 |v_#race~threads_alive~0_1|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_1|} AuxVars[] AssignedVars[#race~threads_alive~0][157], [Black: 285#true, 281#true, 225#L713-1true, 170#L699-6true, 283#true, 290#true, 217#L699-6true, 287#(= |#race~threads_alive~0| 0)]) [2024-11-28 03:49:17,287 INFO L294 olderBase$Statistics]: this new event has 255 ancestors and is cut-off event [2024-11-28 03:49:17,288 INFO L297 olderBase$Statistics]: existing Event has 255 ancestors and is cut-off event [2024-11-28 03:49:17,288 INFO L297 olderBase$Statistics]: existing Event has 250 ancestors and is cut-off event [2024-11-28 03:49:17,288 INFO L297 olderBase$Statistics]: existing Event has 255 ancestors and is cut-off event [2024-11-28 03:49:17,356 INFO L124 PetriNetUnfolderBase]: 4195/15297 cut-off events. [2024-11-28 03:49:17,356 INFO L125 PetriNetUnfolderBase]: For 824/865 co-relation queries the response was YES. [2024-11-28 03:49:17,429 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24305 conditions, 15297 events. 4195/15297 cut-off events. For 824/865 co-relation queries the response was YES. Maximal size of possible extension queue 425. Compared 173165 event pairs, 2308 based on Foata normal form. 0/13662 useless extension candidates. Maximal degree in co-relation 23033. Up to 4051 conditions per place. [2024-11-28 03:49:17,500 INFO L140 encePairwiseOnDemand]: 276/281 looper letters, 34 selfloop transitions, 4 changer transitions 0/306 dead transitions. [2024-11-28 03:49:17,500 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 287 places, 306 transitions, 792 flow [2024-11-28 03:49:17,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:49:17,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:49:17,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 804 transitions. [2024-11-28 03:49:17,508 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9537366548042705 [2024-11-28 03:49:17,508 INFO L175 Difference]: Start difference. First operand has 286 places, 291 transitions, 686 flow. Second operand 3 states and 804 transitions. [2024-11-28 03:49:17,508 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 287 places, 306 transitions, 792 flow [2024-11-28 03:49:17,528 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 285 places, 306 transitions, 764 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 03:49:17,535 INFO L231 Difference]: Finished difference. Result has 287 places, 294 transitions, 688 flow [2024-11-28 03:49:17,535 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=281, PETRI_DIFFERENCE_MINUEND_FLOW=658, PETRI_DIFFERENCE_MINUEND_PLACES=283, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=291, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=287, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=688, PETRI_PLACES=287, PETRI_TRANSITIONS=294} [2024-11-28 03:49:17,539 INFO L279 CegarLoopForPetriNet]: 282 programPoint places, 5 predicate places. [2024-11-28 03:49:17,539 INFO L471 AbstractCegarLoop]: Abstraction has has 287 places, 294 transitions, 688 flow [2024-11-28 03:49:17,540 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 256.3333333333333) internal successors, (769), 3 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:49:17,540 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:49:17,541 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:49:17,541 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 03:49:17,541 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting threadErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 15 more)] === [2024-11-28 03:49:17,542 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:49:17,542 INFO L85 PathProgramCache]: Analyzing trace with hash -239425646, now seen corresponding path program 1 times [2024-11-28 03:49:17,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:49:17,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757760731] [2024-11-28 03:49:17,543 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:49:17,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:49:17,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:49:17,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:49:17,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:49:17,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757760731] [2024-11-28 03:49:17,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1757760731] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:49:17,723 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:49:17,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:49:17,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605629677] [2024-11-28 03:49:17,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:49:17,725 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:49:17,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:49:17,727 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:49:17,727 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:49:17,795 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 247 out of 281 [2024-11-28 03:49:17,797 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 287 places, 294 transitions, 688 flow. Second operand has 3 states, 3 states have (on average 249.0) internal successors, (747), 3 states have internal predecessors, (747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:49:17,797 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:49:17,797 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 247 of 281 [2024-11-28 03:49:17,797 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:49:18,455 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([782] L714-5-->L713-1: Formula: (= 0 |v_#race~threads_alive~0_1|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_1|} AuxVars[] AssignedVars[#race~threads_alive~0][237], [281#true, Black: 285#true, 260#L692-2true, 225#L713-1true, Black: 292#(= |#race~data~0| 0), 283#true, 290#true, 68#L692-7true, 295#true]) [2024-11-28 03:49:18,455 INFO L294 olderBase$Statistics]: this new event has 202 ancestors and is cut-off event [2024-11-28 03:49:18,456 INFO L297 olderBase$Statistics]: existing Event has 197 ancestors and is cut-off event [2024-11-28 03:49:18,456 INFO L297 olderBase$Statistics]: existing Event has 202 ancestors and is cut-off event [2024-11-28 03:49:18,456 INFO L297 olderBase$Statistics]: existing Event has 197 ancestors and is cut-off event [2024-11-28 03:49:18,801 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([782] L714-5-->L713-1: Formula: (= 0 |v_#race~threads_alive~0_1|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_1|} AuxVars[] AssignedVars[#race~threads_alive~0][173], [281#true, 260#L692-2true, Black: 285#true, 225#L713-1true, Black: 292#(= |#race~data~0| 0), 283#true, 290#true, 226#L694true, 295#true]) [2024-11-28 03:49:18,801 INFO L294 olderBase$Statistics]: this new event has 204 ancestors and is cut-off event [2024-11-28 03:49:18,801 INFO L297 olderBase$Statistics]: existing Event has 199 ancestors and is cut-off event [2024-11-28 03:49:18,802 INFO L297 olderBase$Statistics]: existing Event has 199 ancestors and is cut-off event [2024-11-28 03:49:18,802 INFO L297 olderBase$Statistics]: existing Event has 204 ancestors and is cut-off event [2024-11-28 03:49:18,843 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([782] L714-5-->L713-1: Formula: (= 0 |v_#race~threads_alive~0_1|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_1|} AuxVars[] AssignedVars[#race~threads_alive~0][173], [281#true, Black: 285#true, 260#L692-2true, 225#L713-1true, Black: 292#(= |#race~data~0| 0), 283#true, 123#L694-3true, 290#true, 295#true]) [2024-11-28 03:49:18,843 INFO L294 olderBase$Statistics]: this new event has 205 ancestors and is cut-off event [2024-11-28 03:49:18,843 INFO L297 olderBase$Statistics]: existing Event has 200 ancestors and is cut-off event [2024-11-28 03:49:18,844 INFO L297 olderBase$Statistics]: existing Event has 205 ancestors and is cut-off event [2024-11-28 03:49:18,844 INFO L297 olderBase$Statistics]: existing Event has 200 ancestors and is cut-off event [2024-11-28 03:49:18,918 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([782] L714-5-->L713-1: Formula: (= 0 |v_#race~threads_alive~0_1|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_1|} AuxVars[] AssignedVars[#race~threads_alive~0][173], [281#true, Black: 285#true, 260#L692-2true, 225#L713-1true, Black: 292#(= |#race~data~0| 0), 283#true, 290#true, 239#L695-3true, 295#true]) [2024-11-28 03:49:18,918 INFO L294 olderBase$Statistics]: this new event has 207 ancestors and is cut-off event [2024-11-28 03:49:18,919 INFO L297 olderBase$Statistics]: existing Event has 207 ancestors and is cut-off event [2024-11-28 03:49:18,919 INFO L297 olderBase$Statistics]: existing Event has 202 ancestors and is cut-off event [2024-11-28 03:49:18,919 INFO L297 olderBase$Statistics]: existing Event has 202 ancestors and is cut-off event [2024-11-28 03:49:19,348 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([782] L714-5-->L713-1: Formula: (= 0 |v_#race~threads_alive~0_1|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_1|} AuxVars[] AssignedVars[#race~threads_alive~0][173], [260#L692-2true, 281#true, Black: 285#true, 225#L713-1true, Black: 292#(= |#race~data~0| 0), 283#true, 290#true, 279#L697-3true, 295#true]) [2024-11-28 03:49:19,348 INFO L294 olderBase$Statistics]: this new event has 217 ancestors and is cut-off event [2024-11-28 03:49:19,348 INFO L297 olderBase$Statistics]: existing Event has 217 ancestors and is cut-off event [2024-11-28 03:49:19,348 INFO L297 olderBase$Statistics]: existing Event has 212 ancestors and is cut-off event [2024-11-28 03:49:19,348 INFO L297 olderBase$Statistics]: existing Event has 212 ancestors and is cut-off event [2024-11-28 03:49:19,600 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([782] L714-5-->L713-1: Formula: (= 0 |v_#race~threads_alive~0_1|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_1|} AuxVars[] AssignedVars[#race~threads_alive~0][173], [281#true, Black: 285#true, 260#L692-2true, 225#L713-1true, Black: 292#(= |#race~data~0| 0), 283#true, 64#L698-3true, 290#true, 295#true]) [2024-11-28 03:49:19,600 INFO L294 olderBase$Statistics]: this new event has 219 ancestors and is cut-off event [2024-11-28 03:49:19,600 INFO L297 olderBase$Statistics]: existing Event has 214 ancestors and is cut-off event [2024-11-28 03:49:19,600 INFO L297 olderBase$Statistics]: existing Event has 219 ancestors and is cut-off event [2024-11-28 03:49:19,600 INFO L297 olderBase$Statistics]: existing Event has 214 ancestors and is cut-off event [2024-11-28 03:49:19,948 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([782] L714-5-->L713-1: Formula: (= 0 |v_#race~threads_alive~0_1|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_1|} AuxVars[] AssignedVars[#race~threads_alive~0][237], [281#true, 253#L699-2true, Black: 285#true, 225#L713-1true, Black: 292#(= |#race~data~0| 0), 283#true, 290#true, 68#L692-7true, 295#true]) [2024-11-28 03:49:19,948 INFO L294 olderBase$Statistics]: this new event has 227 ancestors and is cut-off event [2024-11-28 03:49:19,948 INFO L297 olderBase$Statistics]: existing Event has 222 ancestors and is cut-off event [2024-11-28 03:49:19,948 INFO L297 olderBase$Statistics]: existing Event has 222 ancestors and is cut-off event [2024-11-28 03:49:19,948 INFO L297 olderBase$Statistics]: existing Event has 227 ancestors and is cut-off event [2024-11-28 03:49:20,117 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([782] L714-5-->L713-1: Formula: (= 0 |v_#race~threads_alive~0_1|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_1|} AuxVars[] AssignedVars[#race~threads_alive~0][173], [253#L699-2true, 281#true, Black: 285#true, 225#L713-1true, Black: 292#(= |#race~data~0| 0), 283#true, 290#true, 226#L694true, 295#true]) [2024-11-28 03:49:20,117 INFO L294 olderBase$Statistics]: this new event has 229 ancestors and is cut-off event [2024-11-28 03:49:20,117 INFO L297 olderBase$Statistics]: existing Event has 224 ancestors and is cut-off event [2024-11-28 03:49:20,117 INFO L297 olderBase$Statistics]: existing Event has 224 ancestors and is cut-off event [2024-11-28 03:49:20,118 INFO L297 olderBase$Statistics]: existing Event has 229 ancestors and is cut-off event [2024-11-28 03:49:20,299 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([782] L714-5-->L713-1: Formula: (= 0 |v_#race~threads_alive~0_1|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_1|} AuxVars[] AssignedVars[#race~threads_alive~0][173], [253#L699-2true, 281#true, Black: 285#true, 225#L713-1true, Black: 292#(= |#race~data~0| 0), 283#true, 123#L694-3true, 290#true, 295#true]) [2024-11-28 03:49:20,299 INFO L294 olderBase$Statistics]: this new event has 230 ancestors and is cut-off event [2024-11-28 03:49:20,299 INFO L297 olderBase$Statistics]: existing Event has 230 ancestors and is cut-off event [2024-11-28 03:49:20,299 INFO L297 olderBase$Statistics]: existing Event has 225 ancestors and is cut-off event [2024-11-28 03:49:20,300 INFO L297 olderBase$Statistics]: existing Event has 225 ancestors and is cut-off event [2024-11-28 03:49:20,395 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([782] L714-5-->L713-1: Formula: (= 0 |v_#race~threads_alive~0_1|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_1|} AuxVars[] AssignedVars[#race~threads_alive~0][173], [Black: 285#true, 281#true, 253#L699-2true, 225#L713-1true, Black: 292#(= |#race~data~0| 0), 283#true, 290#true, 239#L695-3true, 295#true]) [2024-11-28 03:49:20,395 INFO L294 olderBase$Statistics]: this new event has 232 ancestors and is cut-off event [2024-11-28 03:49:20,395 INFO L297 olderBase$Statistics]: existing Event has 232 ancestors and is cut-off event [2024-11-28 03:49:20,395 INFO L297 olderBase$Statistics]: existing Event has 227 ancestors and is cut-off event [2024-11-28 03:49:20,395 INFO L297 olderBase$Statistics]: existing Event has 227 ancestors and is cut-off event [2024-11-28 03:49:20,717 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([782] L714-5-->L713-1: Formula: (= 0 |v_#race~threads_alive~0_1|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_1|} AuxVars[] AssignedVars[#race~threads_alive~0][173], [253#L699-2true, Black: 285#true, 281#true, 225#L713-1true, Black: 292#(= |#race~data~0| 0), 283#true, 290#true, 279#L697-3true, 295#true]) [2024-11-28 03:49:20,717 INFO L294 olderBase$Statistics]: this new event has 242 ancestors and is cut-off event [2024-11-28 03:49:20,717 INFO L297 olderBase$Statistics]: existing Event has 242 ancestors and is cut-off event [2024-11-28 03:49:20,717 INFO L297 olderBase$Statistics]: existing Event has 237 ancestors and is cut-off event [2024-11-28 03:49:20,718 INFO L297 olderBase$Statistics]: existing Event has 237 ancestors and is cut-off event [2024-11-28 03:49:20,761 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([782] L714-5-->L713-1: Formula: (= 0 |v_#race~threads_alive~0_1|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_1|} AuxVars[] AssignedVars[#race~threads_alive~0][173], [281#true, 253#L699-2true, Black: 285#true, 225#L713-1true, Black: 292#(= |#race~data~0| 0), 283#true, 64#L698-3true, 290#true, 295#true]) [2024-11-28 03:49:20,761 INFO L294 olderBase$Statistics]: this new event has 244 ancestors and is cut-off event [2024-11-28 03:49:20,761 INFO L297 olderBase$Statistics]: existing Event has 239 ancestors and is cut-off event [2024-11-28 03:49:20,761 INFO L297 olderBase$Statistics]: existing Event has 244 ancestors and is cut-off event [2024-11-28 03:49:20,761 INFO L297 olderBase$Statistics]: existing Event has 239 ancestors and is cut-off event [2024-11-28 03:49:21,168 INFO L124 PetriNetUnfolderBase]: 5624/18320 cut-off events. [2024-11-28 03:49:21,168 INFO L125 PetriNetUnfolderBase]: For 2760/3027 co-relation queries the response was YES. [2024-11-28 03:49:21,209 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32070 conditions, 18320 events. 5624/18320 cut-off events. For 2760/3027 co-relation queries the response was YES. Maximal size of possible extension queue 487. Compared 203802 event pairs, 2938 based on Foata normal form. 94/16589 useless extension candidates. Maximal degree in co-relation 25962. Up to 7539 conditions per place. [2024-11-28 03:49:21,290 INFO L140 encePairwiseOnDemand]: 272/281 looper letters, 49 selfloop transitions, 14 changer transitions 0/317 dead transitions. [2024-11-28 03:49:21,290 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 289 places, 317 transitions, 885 flow [2024-11-28 03:49:21,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:49:21,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:49:21,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 791 transitions. [2024-11-28 03:49:21,293 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9383155397390273 [2024-11-28 03:49:21,294 INFO L175 Difference]: Start difference. First operand has 287 places, 294 transitions, 688 flow. Second operand 3 states and 791 transitions. [2024-11-28 03:49:21,294 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 289 places, 317 transitions, 885 flow [2024-11-28 03:49:21,312 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 287 places, 317 transitions, 877 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 03:49:21,318 INFO L231 Difference]: Finished difference. Result has 289 places, 306 transitions, 806 flow [2024-11-28 03:49:21,318 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=281, PETRI_DIFFERENCE_MINUEND_FLOW=680, PETRI_DIFFERENCE_MINUEND_PLACES=285, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=294, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=280, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=806, PETRI_PLACES=289, PETRI_TRANSITIONS=306} [2024-11-28 03:49:21,319 INFO L279 CegarLoopForPetriNet]: 282 programPoint places, 7 predicate places. [2024-11-28 03:49:21,319 INFO L471 AbstractCegarLoop]: Abstraction has has 289 places, 306 transitions, 806 flow [2024-11-28 03:49:21,320 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 249.0) internal successors, (747), 3 states have internal predecessors, (747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:49:21,320 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:49:21,320 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:49:21,321 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 03:49:21,321 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting threadErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 15 more)] === [2024-11-28 03:49:21,322 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:49:21,322 INFO L85 PathProgramCache]: Analyzing trace with hash -1646903207, now seen corresponding path program 1 times [2024-11-28 03:49:21,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:49:21,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233871848] [2024-11-28 03:49:21,322 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:49:21,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:49:21,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:49:21,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:49:21,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:49:21,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233871848] [2024-11-28 03:49:21,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [233871848] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:49:21,491 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:49:21,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:49:21,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676558150] [2024-11-28 03:49:21,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:49:21,492 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:49:21,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:49:21,494 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:49:21,494 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:49:21,516 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 253 out of 281 [2024-11-28 03:49:21,518 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 289 places, 306 transitions, 806 flow. Second operand has 3 states, 3 states have (on average 255.33333333333334) internal successors, (766), 3 states have internal predecessors, (766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:49:21,518 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:49:21,518 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 253 of 281 [2024-11-28 03:49:21,518 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:49:22,026 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([782] L714-5-->L713-1: Formula: (= 0 |v_#race~threads_alive~0_1|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_1|} AuxVars[] AssignedVars[#race~threads_alive~0][233], [260#L692-2true, Black: 285#true, 281#true, 225#L713-1true, Black: 292#(= |#race~data~0| 0), 283#true, 300#true, Black: 297#(= |threadThread1of2ForFork0_#t~nondet2| |#race~threads_alive~0|), 68#L692-7true, 295#true]) [2024-11-28 03:49:22,027 INFO L294 olderBase$Statistics]: this new event has 202 ancestors and is cut-off event [2024-11-28 03:49:22,027 INFO L297 olderBase$Statistics]: existing Event has 197 ancestors and is cut-off event [2024-11-28 03:49:22,027 INFO L297 olderBase$Statistics]: existing Event has 197 ancestors and is cut-off event [2024-11-28 03:49:22,027 INFO L297 olderBase$Statistics]: existing Event has 202 ancestors and is cut-off event [2024-11-28 03:49:22,162 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([782] L714-5-->L713-1: Formula: (= 0 |v_#race~threads_alive~0_1|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_1|} AuxVars[] AssignedVars[#race~threads_alive~0][173], [Black: 285#true, 281#true, 260#L692-2true, 225#L713-1true, Black: 292#(= |#race~data~0| 0), 283#true, Black: 297#(= |threadThread1of2ForFork0_#t~nondet2| |#race~threads_alive~0|), 300#true, 226#L694true, 295#true]) [2024-11-28 03:49:22,162 INFO L294 olderBase$Statistics]: this new event has 204 ancestors and is cut-off event [2024-11-28 03:49:22,163 INFO L297 olderBase$Statistics]: existing Event has 199 ancestors and is cut-off event [2024-11-28 03:49:22,163 INFO L297 olderBase$Statistics]: existing Event has 204 ancestors and is cut-off event [2024-11-28 03:49:22,163 INFO L297 olderBase$Statistics]: existing Event has 199 ancestors and is cut-off event [2024-11-28 03:49:23,247 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([888] L699-->L699-1: Formula: (= 0 |v_#race~threads_alive~0_4|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_4|} AuxVars[] AssignedVars[#race~threads_alive~0][318], [Black: 285#true, 281#true, Black: 292#(= |#race~data~0| 0), 77#L699-1true, 14#L713-2true, 283#true, Black: 297#(= |threadThread1of2ForFork0_#t~nondet2| |#race~threads_alive~0|), 300#true, 68#L692-7true, 295#true]) [2024-11-28 03:49:23,248 INFO L294 olderBase$Statistics]: this new event has 227 ancestors and is cut-off event [2024-11-28 03:49:23,248 INFO L297 olderBase$Statistics]: existing Event has 222 ancestors and is cut-off event [2024-11-28 03:49:23,248 INFO L297 olderBase$Statistics]: existing Event has 222 ancestors and is cut-off event [2024-11-28 03:49:23,248 INFO L297 olderBase$Statistics]: existing Event has 227 ancestors and is cut-off event [2024-11-28 03:49:23,524 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([782] L714-5-->L713-1: Formula: (= 0 |v_#race~threads_alive~0_1|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_1|} AuxVars[] AssignedVars[#race~threads_alive~0][233], [Black: 285#true, 281#true, 225#L713-1true, Black: 292#(= |#race~data~0| 0), 77#L699-1true, 283#true, 300#true, Black: 297#(= |threadThread1of2ForFork0_#t~nondet2| |#race~threads_alive~0|), 68#L692-7true, 295#true]) [2024-11-28 03:49:23,524 INFO L294 olderBase$Statistics]: this new event has 226 ancestors and is cut-off event [2024-11-28 03:49:23,524 INFO L297 olderBase$Statistics]: existing Event has 226 ancestors and is cut-off event [2024-11-28 03:49:23,524 INFO L297 olderBase$Statistics]: existing Event has 226 ancestors and is cut-off event [2024-11-28 03:49:23,524 INFO L297 olderBase$Statistics]: existing Event has 221 ancestors and is cut-off event [2024-11-28 03:49:23,525 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([782] L714-5-->L713-1: Formula: (= 0 |v_#race~threads_alive~0_1|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_1|} AuxVars[] AssignedVars[#race~threads_alive~0][233], [253#L699-2true, Black: 285#true, 281#true, 225#L713-1true, Black: 292#(= |#race~data~0| 0), 283#true, 300#true, Black: 297#(= |threadThread1of2ForFork0_#t~nondet2| |#race~threads_alive~0|), 68#L692-7true, 295#true]) [2024-11-28 03:49:23,525 INFO L294 olderBase$Statistics]: this new event has 227 ancestors and is cut-off event [2024-11-28 03:49:23,525 INFO L297 olderBase$Statistics]: existing Event has 222 ancestors and is cut-off event [2024-11-28 03:49:23,525 INFO L297 olderBase$Statistics]: existing Event has 227 ancestors and is cut-off event [2024-11-28 03:49:23,525 INFO L297 olderBase$Statistics]: existing Event has 222 ancestors and is cut-off event [2024-11-28 03:49:23,525 INFO L292 olderBase$Statistics]: inserting event number 5 for the transition-marking pair ([782] L714-5-->L713-1: Formula: (= 0 |v_#race~threads_alive~0_1|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_1|} AuxVars[] AssignedVars[#race~threads_alive~0][233], [Black: 285#true, 253#L699-2true, 281#true, 225#L713-1true, Black: 292#(= |#race~data~0| 0), 283#true, 300#true, Black: 297#(= |threadThread1of2ForFork0_#t~nondet2| |#race~threads_alive~0|), 68#L692-7true, 295#true]) [2024-11-28 03:49:23,525 INFO L294 olderBase$Statistics]: this new event has 227 ancestors and is cut-off event [2024-11-28 03:49:23,526 INFO L297 olderBase$Statistics]: existing Event has 222 ancestors and is cut-off event [2024-11-28 03:49:23,526 INFO L297 olderBase$Statistics]: existing Event has 227 ancestors and is cut-off event [2024-11-28 03:49:23,526 INFO L297 olderBase$Statistics]: existing Event has 222 ancestors and is cut-off event [2024-11-28 03:49:23,526 INFO L297 olderBase$Statistics]: existing Event has 227 ancestors and is cut-off event [2024-11-28 03:49:23,609 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([782] L714-5-->L713-1: Formula: (= 0 |v_#race~threads_alive~0_1|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_1|} AuxVars[] AssignedVars[#race~threads_alive~0][173], [Black: 285#true, 253#L699-2true, 281#true, 225#L713-1true, Black: 292#(= |#race~data~0| 0), 283#true, Black: 297#(= |threadThread1of2ForFork0_#t~nondet2| |#race~threads_alive~0|), 13#threadErr1ASSERT_VIOLATIONDATA_RACEtrue, 300#true, 295#true]) [2024-11-28 03:49:23,609 INFO L294 olderBase$Statistics]: this new event has 227 ancestors and is cut-off event [2024-11-28 03:49:23,609 INFO L297 olderBase$Statistics]: existing Event has 227 ancestors and is cut-off event [2024-11-28 03:49:23,609 INFO L297 olderBase$Statistics]: existing Event has 222 ancestors and is cut-off event [2024-11-28 03:49:23,609 INFO L297 olderBase$Statistics]: existing Event has 227 ancestors and is cut-off event [2024-11-28 03:49:23,618 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([782] L714-5-->L713-1: Formula: (= 0 |v_#race~threads_alive~0_1|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_1|} AuxVars[] AssignedVars[#race~threads_alive~0][173], [253#L699-2true, Black: 285#true, 281#true, 225#L713-1true, Black: 292#(= |#race~data~0| 0), 283#true, 300#true, Black: 297#(= |threadThread1of2ForFork0_#t~nondet2| |#race~threads_alive~0|), 226#L694true, 295#true]) [2024-11-28 03:49:23,618 INFO L294 olderBase$Statistics]: this new event has 229 ancestors and is cut-off event [2024-11-28 03:49:23,618 INFO L297 olderBase$Statistics]: existing Event has 224 ancestors and is cut-off event [2024-11-28 03:49:23,618 INFO L297 olderBase$Statistics]: existing Event has 224 ancestors and is cut-off event [2024-11-28 03:49:23,618 INFO L297 olderBase$Statistics]: existing Event has 229 ancestors and is cut-off event [2024-11-28 03:49:24,770 INFO L124 PetriNetUnfolderBase]: 5599/20226 cut-off events. [2024-11-28 03:49:24,770 INFO L125 PetriNetUnfolderBase]: For 3183/3543 co-relation queries the response was YES. [2024-11-28 03:49:24,827 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34706 conditions, 20226 events. 5599/20226 cut-off events. For 3183/3543 co-relation queries the response was YES. Maximal size of possible extension queue 554. Compared 239398 event pairs, 3099 based on Foata normal form. 21/18165 useless extension candidates. Maximal degree in co-relation 33125. Up to 6066 conditions per place. [2024-11-28 03:49:24,898 INFO L140 encePairwiseOnDemand]: 275/281 looper letters, 36 selfloop transitions, 7 changer transitions 0/322 dead transitions. [2024-11-28 03:49:24,898 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 291 places, 322 transitions, 935 flow [2024-11-28 03:49:24,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:49:24,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:49:24,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 800 transitions. [2024-11-28 03:49:24,901 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9489916963226572 [2024-11-28 03:49:24,902 INFO L175 Difference]: Start difference. First operand has 289 places, 306 transitions, 806 flow. Second operand 3 states and 800 transitions. [2024-11-28 03:49:24,902 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 291 places, 322 transitions, 935 flow [2024-11-28 03:49:24,914 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 289 places, 322 transitions, 907 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 03:49:24,919 INFO L231 Difference]: Finished difference. Result has 291 places, 311 transitions, 834 flow [2024-11-28 03:49:24,919 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=281, PETRI_DIFFERENCE_MINUEND_FLOW=778, PETRI_DIFFERENCE_MINUEND_PLACES=287, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=306, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=299, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=834, PETRI_PLACES=291, PETRI_TRANSITIONS=311} [2024-11-28 03:49:24,920 INFO L279 CegarLoopForPetriNet]: 282 programPoint places, 9 predicate places. [2024-11-28 03:49:24,921 INFO L471 AbstractCegarLoop]: Abstraction has has 291 places, 311 transitions, 834 flow [2024-11-28 03:49:24,921 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 255.33333333333334) internal successors, (766), 3 states have internal predecessors, (766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:49:24,921 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:49:24,922 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:49:24,922 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 03:49:24,922 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 15 more)] === [2024-11-28 03:49:24,923 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:49:24,923 INFO L85 PathProgramCache]: Analyzing trace with hash 991090673, now seen corresponding path program 1 times [2024-11-28 03:49:24,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:49:24,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248617988] [2024-11-28 03:49:24,923 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:49:24,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:49:24,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:49:25,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:49:25,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:49:25,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248617988] [2024-11-28 03:49:25,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248617988] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:49:25,433 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:49:25,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:49:25,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555008455] [2024-11-28 03:49:25,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:49:25,434 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:49:25,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:49:25,435 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:49:25,435 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:49:25,453 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 259 out of 281 [2024-11-28 03:49:25,455 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 291 places, 311 transitions, 834 flow. Second operand has 3 states, 3 states have (on average 260.3333333333333) internal successors, (781), 3 states have internal predecessors, (781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:49:25,455 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:49:25,455 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 259 of 281 [2024-11-28 03:49:25,455 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:49:27,976 INFO L124 PetriNetUnfolderBase]: 1939/10763 cut-off events. [2024-11-28 03:49:27,976 INFO L125 PetriNetUnfolderBase]: For 1679/1960 co-relation queries the response was YES. [2024-11-28 03:49:28,014 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17785 conditions, 10763 events. 1939/10763 cut-off events. For 1679/1960 co-relation queries the response was YES. Maximal size of possible extension queue 354. Compared 127650 event pairs, 546 based on Foata normal form. 260/10107 useless extension candidates. Maximal degree in co-relation 16781. Up to 1517 conditions per place. [2024-11-28 03:49:28,043 INFO L140 encePairwiseOnDemand]: 267/281 looper letters, 16 selfloop transitions, 14 changer transitions 0/318 dead transitions. [2024-11-28 03:49:28,043 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 293 places, 318 transitions, 897 flow [2024-11-28 03:49:28,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:49:28,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:49:28,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 813 transitions. [2024-11-28 03:49:28,047 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9644128113879004 [2024-11-28 03:49:28,047 INFO L175 Difference]: Start difference. First operand has 291 places, 311 transitions, 834 flow. Second operand 3 states and 813 transitions. [2024-11-28 03:49:28,048 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 293 places, 318 transitions, 897 flow [2024-11-28 03:49:28,060 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 291 places, 318 transitions, 883 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 03:49:28,067 INFO L231 Difference]: Finished difference. Result has 292 places, 315 transitions, 870 flow [2024-11-28 03:49:28,068 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=281, PETRI_DIFFERENCE_MINUEND_FLOW=796, PETRI_DIFFERENCE_MINUEND_PLACES=289, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=307, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=293, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=870, PETRI_PLACES=292, PETRI_TRANSITIONS=315} [2024-11-28 03:49:28,069 INFO L279 CegarLoopForPetriNet]: 282 programPoint places, 10 predicate places. [2024-11-28 03:49:28,071 INFO L471 AbstractCegarLoop]: Abstraction has has 292 places, 315 transitions, 870 flow [2024-11-28 03:49:28,071 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 260.3333333333333) internal successors, (781), 3 states have internal predecessors, (781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:49:28,072 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:49:28,072 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:49:28,072 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 03:49:28,073 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting threadErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 15 more)] === [2024-11-28 03:49:28,074 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:49:28,074 INFO L85 PathProgramCache]: Analyzing trace with hash -1273130074, now seen corresponding path program 1 times [2024-11-28 03:49:28,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:49:28,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529068311] [2024-11-28 03:49:28,074 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:49:28,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:49:28,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:49:28,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:49:28,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:49:28,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529068311] [2024-11-28 03:49:28,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1529068311] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:49:28,226 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:49:28,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:49:28,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2379629] [2024-11-28 03:49:28,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:49:28,227 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:49:28,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:49:28,230 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:49:28,231 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:49:28,307 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 247 out of 281 [2024-11-28 03:49:28,308 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 292 places, 315 transitions, 870 flow. Second operand has 3 states, 3 states have (on average 249.33333333333334) internal successors, (748), 3 states have internal predecessors, (748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:49:28,308 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:49:28,309 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 247 of 281 [2024-11-28 03:49:28,309 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:49:30,861 INFO L124 PetriNetUnfolderBase]: 3011/13203 cut-off events. [2024-11-28 03:49:30,861 INFO L125 PetriNetUnfolderBase]: For 6997/7634 co-relation queries the response was YES. [2024-11-28 03:49:30,918 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27760 conditions, 13203 events. 3011/13203 cut-off events. For 6997/7634 co-relation queries the response was YES. Maximal size of possible extension queue 403. Compared 155008 event pairs, 1192 based on Foata normal form. 50/12222 useless extension candidates. Maximal degree in co-relation 26513. Up to 4906 conditions per place. [2024-11-28 03:49:30,970 INFO L140 encePairwiseOnDemand]: 274/281 looper letters, 60 selfloop transitions, 10 changer transitions 0/331 dead transitions. [2024-11-28 03:49:30,970 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 294 places, 331 transitions, 1079 flow [2024-11-28 03:49:30,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:49:30,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:49:30,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 786 transitions. [2024-11-28 03:49:30,974 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9323843416370107 [2024-11-28 03:49:30,974 INFO L175 Difference]: Start difference. First operand has 292 places, 315 transitions, 870 flow. Second operand 3 states and 786 transitions. [2024-11-28 03:49:30,974 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 294 places, 331 transitions, 1079 flow [2024-11-28 03:49:30,985 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 293 places, 331 transitions, 1058 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 03:49:30,991 INFO L231 Difference]: Finished difference. Result has 295 places, 323 transitions, 946 flow [2024-11-28 03:49:30,991 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=281, PETRI_DIFFERENCE_MINUEND_FLOW=856, PETRI_DIFFERENCE_MINUEND_PLACES=291, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=315, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=305, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=946, PETRI_PLACES=295, PETRI_TRANSITIONS=323} [2024-11-28 03:49:30,992 INFO L279 CegarLoopForPetriNet]: 282 programPoint places, 13 predicate places. [2024-11-28 03:49:30,992 INFO L471 AbstractCegarLoop]: Abstraction has has 295 places, 323 transitions, 946 flow [2024-11-28 03:49:30,993 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 249.33333333333334) internal successors, (748), 3 states have internal predecessors, (748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:49:30,993 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:49:30,994 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:49:30,994 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 03:49:30,994 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 15 more)] === [2024-11-28 03:49:30,995 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:49:30,996 INFO L85 PathProgramCache]: Analyzing trace with hash -548993485, now seen corresponding path program 1 times [2024-11-28 03:49:30,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:49:30,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174963113] [2024-11-28 03:49:30,996 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:49:30,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:49:31,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:49:31,052 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:49:31,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:49:31,164 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 03:49:31,164 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 03:49:31,164 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (17 of 18 remaining) [2024-11-28 03:49:31,165 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (16 of 18 remaining) [2024-11-28 03:49:31,165 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (15 of 18 remaining) [2024-11-28 03:49:31,165 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (14 of 18 remaining) [2024-11-28 03:49:31,165 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (13 of 18 remaining) [2024-11-28 03:49:31,165 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (12 of 18 remaining) [2024-11-28 03:49:31,166 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONDATA_RACE (11 of 18 remaining) [2024-11-28 03:49:31,166 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr4ASSERT_VIOLATIONDATA_RACE (10 of 18 remaining) [2024-11-28 03:49:31,166 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (9 of 18 remaining) [2024-11-28 03:49:31,166 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (8 of 18 remaining) [2024-11-28 03:49:31,166 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (7 of 18 remaining) [2024-11-28 03:49:31,166 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONDATA_RACE (6 of 18 remaining) [2024-11-28 03:49:31,166 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr4ASSERT_VIOLATIONDATA_RACE (5 of 18 remaining) [2024-11-28 03:49:31,167 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (4 of 18 remaining) [2024-11-28 03:49:31,167 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (3 of 18 remaining) [2024-11-28 03:49:31,167 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (2 of 18 remaining) [2024-11-28 03:49:31,167 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONDATA_RACE (1 of 18 remaining) [2024-11-28 03:49:31,167 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr4ASSERT_VIOLATIONDATA_RACE (0 of 18 remaining) [2024-11-28 03:49:31,168 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-28 03:49:31,168 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:49:31,169 WARN L246 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-28 03:49:31,169 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-28 03:49:31,246 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-28 03:49:31,252 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 331 places, 328 transitions, 674 flow [2024-11-28 03:49:31,356 INFO L124 PetriNetUnfolderBase]: 13/425 cut-off events. [2024-11-28 03:49:31,356 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-11-28 03:49:31,359 INFO L83 FinitePrefix]: Finished finitePrefix Result has 438 conditions, 425 events. 13/425 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 804 event pairs, 0 based on Foata normal form. 0/385 useless extension candidates. Maximal degree in co-relation 347. Up to 8 conditions per place. [2024-11-28 03:49:31,359 INFO L82 GeneralOperation]: Start removeDead. Operand has 331 places, 328 transitions, 674 flow [2024-11-28 03:49:31,367 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 331 places, 328 transitions, 674 flow [2024-11-28 03:49:31,369 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:49:31,370 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@730dbf9b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:49:31,370 INFO L334 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2024-11-28 03:49:31,391 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 03:49:31,391 INFO L124 PetriNetUnfolderBase]: 2/164 cut-off events. [2024-11-28 03:49:31,391 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 03:49:31,391 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:49:31,392 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:49:31,392 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 20 more)] === [2024-11-28 03:49:31,393 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:49:31,393 INFO L85 PathProgramCache]: Analyzing trace with hash -340292074, now seen corresponding path program 1 times [2024-11-28 03:49:31,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:49:31,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601036754] [2024-11-28 03:49:31,393 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:49:31,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:49:31,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:49:31,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:49:31,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:49:31,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601036754] [2024-11-28 03:49:31,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [601036754] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:49:31,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:49:31,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:49:31,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831444999] [2024-11-28 03:49:31,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:49:31,522 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:49:31,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:49:31,523 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:49:31,524 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:49:31,619 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 273 out of 328 [2024-11-28 03:49:31,621 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 331 places, 328 transitions, 674 flow. Second operand has 3 states, 3 states have (on average 274.0) internal successors, (822), 3 states have internal predecessors, (822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:49:31,621 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:49:31,622 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 273 of 328 [2024-11-28 03:49:31,622 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand