./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-data-race.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-race-challenges/per-thread-index-inc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version a046e57d Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-race-challenges/per-thread-index-inc.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --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 2c4a731d968c8b3136fe56f501bb6493c1ca96e59709a347334934436fe70eb7 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 10:03:50,146 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 10:03:50,219 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-13 10:03:50,225 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 10:03:50,226 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 10:03:50,257 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 10:03:50,258 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 10:03:50,258 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 10:03:50,259 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-13 10:03:50,260 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-13 10:03:50,260 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 10:03:50,261 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 10:03:50,261 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 10:03:50,262 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 10:03:50,263 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-13 10:03:50,264 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-13 10:03:50,264 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 10:03:50,264 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-13 10:03:50,265 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 10:03:50,265 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-13 10:03:50,265 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-13 10:03:50,268 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-13 10:03:50,268 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-13 10:03:50,268 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 10:03:50,269 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-13 10:03:50,269 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-13 10:03:50,269 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-13 10:03:50,269 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 10:03:50,270 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 10:03:50,270 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 10:03:50,270 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-13 10:03:50,271 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 10:03:50,271 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 10:03:50,272 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-13 10:03:50,272 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-13 10:03:50,272 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-13 10:03:50,273 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-13 10:03:50,273 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-13 10:03:50,273 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-13 10:03:50,273 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-13 10:03:50,274 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-13 10:03:50,274 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2c4a731d968c8b3136fe56f501bb6493c1ca96e59709a347334934436fe70eb7 [2024-10-13 10:03:50,524 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 10:03:50,551 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 10:03:50,555 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 10:03:50,556 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 10:03:50,556 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 10:03:50,558 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-race-challenges/per-thread-index-inc.i [2024-10-13 10:03:52,010 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 10:03:52,285 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 10:03:52,285 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-race-challenges/per-thread-index-inc.i [2024-10-13 10:03:52,307 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3e377af1f/d8b558a12d22413c83ba0e05a5684f2e/FLAG47d992f95 [2024-10-13 10:03:52,606 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3e377af1f/d8b558a12d22413c83ba0e05a5684f2e [2024-10-13 10:03:52,608 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 10:03:52,610 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 10:03:52,613 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 10:03:52,614 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 10:03:52,620 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 10:03:52,621 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:03:52" (1/1) ... [2024-10-13 10:03:52,624 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@434b03b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:03:52, skipping insertion in model container [2024-10-13 10:03:52,624 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:03:52" (1/1) ... [2024-10-13 10:03:52,676 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 10:03:53,106 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 10:03:53,117 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 10:03:53,164 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 10:03:53,247 INFO L204 MainTranslator]: Completed translation [2024-10-13 10:03:53,248 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:03:53 WrapperNode [2024-10-13 10:03:53,248 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 10:03:53,249 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 10:03:53,249 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 10:03:53,249 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 10:03:53,256 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:03:53" (1/1) ... [2024-10-13 10:03:53,276 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:03:53" (1/1) ... [2024-10-13 10:03:53,308 INFO L138 Inliner]: procedures = 277, calls = 19, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 76 [2024-10-13 10:03:53,309 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 10:03:53,309 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 10:03:53,310 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 10:03:53,310 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 10:03:53,320 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:03:53" (1/1) ... [2024-10-13 10:03:53,320 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:03:53" (1/1) ... [2024-10-13 10:03:53,327 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:03:53" (1/1) ... [2024-10-13 10:03:53,328 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:03:53" (1/1) ... [2024-10-13 10:03:53,340 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:03:53" (1/1) ... [2024-10-13 10:03:53,344 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:03:53" (1/1) ... [2024-10-13 10:03:53,347 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:03:53" (1/1) ... [2024-10-13 10:03:53,350 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:03:53" (1/1) ... [2024-10-13 10:03:53,353 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 10:03:53,353 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 10:03:53,354 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 10:03:53,354 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 10:03:53,355 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:03:53" (1/1) ... [2024-10-13 10:03:53,360 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 10:03:53,371 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 10:03:53,385 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-13 10:03:53,388 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-13 10:03:53,431 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-13 10:03:53,431 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-13 10:03:53,432 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-13 10:03:53,432 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-13 10:03:53,432 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-13 10:03:53,432 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-13 10:03:53,432 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-13 10:03:53,432 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-13 10:03:53,433 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2024-10-13 10:03:53,433 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2024-10-13 10:03:53,433 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 10:03:53,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 10:03:53,435 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-13 10:03:53,559 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 10:03:53,561 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 10:03:53,826 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-13 10:03:53,826 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 10:03:53,853 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 10:03:53,854 INFO L314 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-13 10:03:53,854 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:03:53 BoogieIcfgContainer [2024-10-13 10:03:53,855 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 10:03:53,857 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-13 10:03:53,857 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-13 10:03:53,860 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-13 10:03:53,860 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 10:03:52" (1/3) ... [2024-10-13 10:03:53,861 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53d2304e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:03:53, skipping insertion in model container [2024-10-13 10:03:53,861 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:03:53" (2/3) ... [2024-10-13 10:03:53,862 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53d2304e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:03:53, skipping insertion in model container [2024-10-13 10:03:53,862 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:03:53" (3/3) ... [2024-10-13 10:03:53,863 INFO L112 eAbstractionObserver]: Analyzing ICFG per-thread-index-inc.i [2024-10-13 10:03:53,880 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-13 10:03:53,881 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2024-10-13 10:03:53,881 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-13 10:03:53,954 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-10-13 10:03:54,000 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 122 places, 123 transitions, 253 flow [2024-10-13 10:03:54,075 INFO L124 PetriNetUnfolderBase]: 6/158 cut-off events. [2024-10-13 10:03:54,076 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-13 10:03:54,081 INFO L83 FinitePrefix]: Finished finitePrefix Result has 163 conditions, 158 events. 6/158 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 244 event pairs, 0 based on Foata normal form. 0/137 useless extension candidates. Maximal degree in co-relation 79. Up to 4 conditions per place. [2024-10-13 10:03:54,081 INFO L82 GeneralOperation]: Start removeDead. Operand has 122 places, 123 transitions, 253 flow [2024-10-13 10:03:54,087 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 122 places, 123 transitions, 253 flow [2024-10-13 10:03:54,097 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 10:03:54,103 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;@84af582, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 10:03:54,104 INFO L334 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2024-10-13 10:03:54,114 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-13 10:03:54,114 INFO L124 PetriNetUnfolderBase]: 1/32 cut-off events. [2024-10-13 10:03:54,115 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-13 10:03:54,115 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 10:03:54,116 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 10:03:54,116 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-10-13 10:03:54,121 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 10:03:54,122 INFO L85 PathProgramCache]: Analyzing trace with hash -365369053, now seen corresponding path program 1 times [2024-10-13 10:03:54,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 10:03:54,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126674858] [2024-10-13 10:03:54,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 10:03:54,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 10:03:54,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 10:03:54,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 10:03:54,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 10:03:54,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126674858] [2024-10-13 10:03:54,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2126674858] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 10:03:54,406 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 10:03:54,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 10:03:54,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577789264] [2024-10-13 10:03:54,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 10:03:54,416 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 10:03:54,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 10:03:54,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 10:03:54,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 10:03:54,473 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 123 [2024-10-13 10:03:54,477 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 123 transitions, 253 flow. Second operand has 3 states, 3 states have (on average 108.33333333333333) internal successors, (325), 3 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:03:54,477 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 10:03:54,477 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 123 [2024-10-13 10:03:54,478 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 10:03:54,570 INFO L124 PetriNetUnfolderBase]: 7/230 cut-off events. [2024-10-13 10:03:54,570 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-10-13 10:03:54,571 INFO L83 FinitePrefix]: Finished finitePrefix Result has 262 conditions, 230 events. 7/230 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 577 event pairs, 6 based on Foata normal form. 9/211 useless extension candidates. Maximal degree in co-relation 172. Up to 25 conditions per place. [2024-10-13 10:03:54,576 INFO L140 encePairwiseOnDemand]: 117/123 looper letters, 10 selfloop transitions, 2 changer transitions 1/119 dead transitions. [2024-10-13 10:03:54,576 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 119 transitions, 269 flow [2024-10-13 10:03:54,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 10:03:54,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 10:03:54,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 337 transitions. [2024-10-13 10:03:54,591 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9132791327913279 [2024-10-13 10:03:54,593 INFO L175 Difference]: Start difference. First operand has 122 places, 123 transitions, 253 flow. Second operand 3 states and 337 transitions. [2024-10-13 10:03:54,594 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 119 transitions, 269 flow [2024-10-13 10:03:54,597 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 119 transitions, 269 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-13 10:03:54,601 INFO L231 Difference]: Finished difference. Result has 123 places, 118 transitions, 247 flow [2024-10-13 10:03:54,606 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=123, PETRI_DIFFERENCE_MINUEND_FLOW=245, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=247, PETRI_PLACES=123, PETRI_TRANSITIONS=118} [2024-10-13 10:03:54,609 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, 1 predicate places. [2024-10-13 10:03:54,610 INFO L471 AbstractCegarLoop]: Abstraction has has 123 places, 118 transitions, 247 flow [2024-10-13 10:03:54,611 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 108.33333333333333) internal successors, (325), 3 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:03:54,611 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 10:03:54,612 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 10:03:54,612 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-13 10:03:54,612 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-10-13 10:03:54,613 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 10:03:54,613 INFO L85 PathProgramCache]: Analyzing trace with hash 1893361870, now seen corresponding path program 1 times [2024-10-13 10:03:54,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 10:03:54,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279493767] [2024-10-13 10:03:54,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 10:03:54,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 10:03:54,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 10:03:54,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 10:03:54,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 10:03:54,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279493767] [2024-10-13 10:03:54,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [279493767] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 10:03:54,744 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 10:03:54,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 10:03:54,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626023010] [2024-10-13 10:03:54,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 10:03:54,745 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 10:03:54,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 10:03:54,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 10:03:54,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 10:03:54,762 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 123 [2024-10-13 10:03:54,765 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 118 transitions, 247 flow. Second operand has 3 states, 3 states have (on average 110.0) internal successors, (330), 3 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:03:54,765 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 10:03:54,767 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 123 [2024-10-13 10:03:54,767 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 10:03:54,831 INFO L124 PetriNetUnfolderBase]: 9/220 cut-off events. [2024-10-13 10:03:54,831 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-10-13 10:03:54,832 INFO L83 FinitePrefix]: Finished finitePrefix Result has 257 conditions, 220 events. 9/220 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 502 event pairs, 3 based on Foata normal form. 0/202 useless extension candidates. Maximal degree in co-relation 217. Up to 24 conditions per place. [2024-10-13 10:03:54,832 INFO L140 encePairwiseOnDemand]: 119/123 looper letters, 11 selfloop transitions, 2 changer transitions 0/120 dead transitions. [2024-10-13 10:03:54,833 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 120 transitions, 277 flow [2024-10-13 10:03:54,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 10:03:54,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 10:03:54,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 342 transitions. [2024-10-13 10:03:54,836 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.926829268292683 [2024-10-13 10:03:54,837 INFO L175 Difference]: Start difference. First operand has 123 places, 118 transitions, 247 flow. Second operand 3 states and 342 transitions. [2024-10-13 10:03:54,837 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 120 transitions, 277 flow [2024-10-13 10:03:54,841 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 120 transitions, 273 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-13 10:03:54,843 INFO L231 Difference]: Finished difference. Result has 121 places, 118 transitions, 253 flow [2024-10-13 10:03:54,844 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=123, PETRI_DIFFERENCE_MINUEND_FLOW=239, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=114, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=253, PETRI_PLACES=121, PETRI_TRANSITIONS=118} [2024-10-13 10:03:54,844 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, -1 predicate places. [2024-10-13 10:03:54,845 INFO L471 AbstractCegarLoop]: Abstraction has has 121 places, 118 transitions, 253 flow [2024-10-13 10:03:54,845 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 110.0) internal successors, (330), 3 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:03:54,845 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 10:03:54,845 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 10:03:54,845 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-13 10:03:54,846 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-10-13 10:03:54,846 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 10:03:54,846 INFO L85 PathProgramCache]: Analyzing trace with hash 279472325, now seen corresponding path program 1 times [2024-10-13 10:03:54,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 10:03:54,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515290189] [2024-10-13 10:03:54,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 10:03:54,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 10:03:54,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 10:03:55,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 10:03:55,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 10:03:55,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515290189] [2024-10-13 10:03:55,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [515290189] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 10:03:55,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 10:03:55,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 10:03:55,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93578262] [2024-10-13 10:03:55,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 10:03:55,571 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 10:03:55,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 10:03:55,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 10:03:55,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-13 10:03:55,729 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 123 [2024-10-13 10:03:55,730 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 118 transitions, 253 flow. Second operand has 6 states, 6 states have (on average 95.5) internal successors, (573), 6 states have internal predecessors, (573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:03:55,730 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 10:03:55,730 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 123 [2024-10-13 10:03:55,730 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 10:03:55,917 INFO L124 PetriNetUnfolderBase]: 101/536 cut-off events. [2024-10-13 10:03:55,918 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-10-13 10:03:55,923 INFO L83 FinitePrefix]: Finished finitePrefix Result has 810 conditions, 536 events. 101/536 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 2809 event pairs, 45 based on Foata normal form. 0/482 useless extension candidates. Maximal degree in co-relation 689. Up to 195 conditions per place. [2024-10-13 10:03:55,927 INFO L140 encePairwiseOnDemand]: 112/123 looper letters, 33 selfloop transitions, 22 changer transitions 0/147 dead transitions. [2024-10-13 10:03:55,928 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 147 transitions, 421 flow [2024-10-13 10:03:55,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 10:03:55,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 10:03:55,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 620 transitions. [2024-10-13 10:03:55,931 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8401084010840109 [2024-10-13 10:03:55,931 INFO L175 Difference]: Start difference. First operand has 121 places, 118 transitions, 253 flow. Second operand 6 states and 620 transitions. [2024-10-13 10:03:55,931 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 147 transitions, 421 flow [2024-10-13 10:03:55,934 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 147 transitions, 421 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-13 10:03:55,937 INFO L231 Difference]: Finished difference. Result has 131 places, 139 transitions, 403 flow [2024-10-13 10:03:55,938 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=123, PETRI_DIFFERENCE_MINUEND_FLOW=253, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=403, PETRI_PLACES=131, PETRI_TRANSITIONS=139} [2024-10-13 10:03:55,938 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, 9 predicate places. [2024-10-13 10:03:55,939 INFO L471 AbstractCegarLoop]: Abstraction has has 131 places, 139 transitions, 403 flow [2024-10-13 10:03:55,939 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 95.5) internal successors, (573), 6 states have internal predecessors, (573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:03:55,939 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 10:03:55,939 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 10:03:55,940 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-13 10:03:55,940 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-10-13 10:03:55,940 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 10:03:55,940 INFO L85 PathProgramCache]: Analyzing trace with hash -1492348292, now seen corresponding path program 1 times [2024-10-13 10:03:55,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 10:03:55,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378479813] [2024-10-13 10:03:55,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 10:03:55,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 10:03:55,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 10:03:56,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 10:03:56,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 10:03:56,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378479813] [2024-10-13 10:03:56,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [378479813] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 10:03:56,054 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 10:03:56,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 10:03:56,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235473210] [2024-10-13 10:03:56,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 10:03:56,057 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 10:03:56,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 10:03:56,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 10:03:56,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-13 10:03:56,152 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 123 [2024-10-13 10:03:56,153 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 139 transitions, 403 flow. Second operand has 5 states, 5 states have (on average 106.4) internal successors, (532), 5 states have internal predecessors, (532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:03:56,153 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 10:03:56,153 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 123 [2024-10-13 10:03:56,153 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 10:03:56,228 INFO L124 PetriNetUnfolderBase]: 48/379 cut-off events. [2024-10-13 10:03:56,228 INFO L125 PetriNetUnfolderBase]: For 35/43 co-relation queries the response was YES. [2024-10-13 10:03:56,230 INFO L83 FinitePrefix]: Finished finitePrefix Result has 619 conditions, 379 events. 48/379 cut-off events. For 35/43 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1484 event pairs, 6 based on Foata normal form. 1/357 useless extension candidates. Maximal degree in co-relation 495. Up to 53 conditions per place. [2024-10-13 10:03:56,232 INFO L140 encePairwiseOnDemand]: 115/123 looper letters, 15 selfloop transitions, 2 changer transitions 5/146 dead transitions. [2024-10-13 10:03:56,232 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 146 transitions, 461 flow [2024-10-13 10:03:56,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 10:03:56,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 10:03:56,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 653 transitions. [2024-10-13 10:03:56,234 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8848238482384824 [2024-10-13 10:03:56,234 INFO L175 Difference]: Start difference. First operand has 131 places, 139 transitions, 403 flow. Second operand 6 states and 653 transitions. [2024-10-13 10:03:56,234 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 146 transitions, 461 flow [2024-10-13 10:03:56,239 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 146 transitions, 461 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-13 10:03:56,241 INFO L231 Difference]: Finished difference. Result has 140 places, 139 transitions, 421 flow [2024-10-13 10:03:56,242 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=123, PETRI_DIFFERENCE_MINUEND_FLOW=403, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=421, PETRI_PLACES=140, PETRI_TRANSITIONS=139} [2024-10-13 10:03:56,245 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, 18 predicate places. [2024-10-13 10:03:56,245 INFO L471 AbstractCegarLoop]: Abstraction has has 140 places, 139 transitions, 421 flow [2024-10-13 10:03:56,246 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 106.4) internal successors, (532), 5 states have internal predecessors, (532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:03:56,246 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 10:03:56,246 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 10:03:56,246 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-13 10:03:56,246 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-10-13 10:03:56,247 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 10:03:56,247 INFO L85 PathProgramCache]: Analyzing trace with hash 851560696, now seen corresponding path program 1 times [2024-10-13 10:03:56,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 10:03:56,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861100909] [2024-10-13 10:03:56,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 10:03:56,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 10:03:56,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 10:03:56,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 10:03:56,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 10:03:56,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861100909] [2024-10-13 10:03:56,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [861100909] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 10:03:56,297 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 10:03:56,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 10:03:56,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539115018] [2024-10-13 10:03:56,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 10:03:56,297 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 10:03:56,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 10:03:56,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 10:03:56,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 10:03:56,311 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 123 [2024-10-13 10:03:56,312 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 139 transitions, 421 flow. Second operand has 3 states, 3 states have (on average 110.33333333333333) internal successors, (331), 3 states have internal predecessors, (331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:03:56,312 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 10:03:56,312 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 123 [2024-10-13 10:03:56,312 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 10:03:56,360 INFO L124 PetriNetUnfolderBase]: 27/272 cut-off events. [2024-10-13 10:03:56,360 INFO L125 PetriNetUnfolderBase]: For 30/39 co-relation queries the response was YES. [2024-10-13 10:03:56,361 INFO L83 FinitePrefix]: Finished finitePrefix Result has 460 conditions, 272 events. 27/272 cut-off events. For 30/39 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 884 event pairs, 0 based on Foata normal form. 0/259 useless extension candidates. Maximal degree in co-relation 372. Up to 49 conditions per place. [2024-10-13 10:03:56,363 INFO L140 encePairwiseOnDemand]: 119/123 looper letters, 7 selfloop transitions, 2 changer transitions 0/137 dead transitions. [2024-10-13 10:03:56,363 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 137 transitions, 435 flow [2024-10-13 10:03:56,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 10:03:56,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 10:03:56,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 338 transitions. [2024-10-13 10:03:56,365 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9159891598915989 [2024-10-13 10:03:56,365 INFO L175 Difference]: Start difference. First operand has 140 places, 139 transitions, 421 flow. Second operand 3 states and 338 transitions. [2024-10-13 10:03:56,365 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 137 transitions, 435 flow [2024-10-13 10:03:56,369 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 137 transitions, 421 flow, removed 5 selfloop flow, removed 5 redundant places. [2024-10-13 10:03:56,371 INFO L231 Difference]: Finished difference. Result has 132 places, 137 transitions, 407 flow [2024-10-13 10:03:56,371 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=123, PETRI_DIFFERENCE_MINUEND_FLOW=403, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=407, PETRI_PLACES=132, PETRI_TRANSITIONS=137} [2024-10-13 10:03:56,371 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, 10 predicate places. [2024-10-13 10:03:56,372 INFO L471 AbstractCegarLoop]: Abstraction has has 132 places, 137 transitions, 407 flow [2024-10-13 10:03:56,373 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 110.33333333333333) internal successors, (331), 3 states have internal predecessors, (331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:03:56,374 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 10:03:56,374 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 10:03:56,374 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-13 10:03:56,374 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting threadErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-10-13 10:03:56,375 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 10:03:56,375 INFO L85 PathProgramCache]: Analyzing trace with hash 213761501, now seen corresponding path program 1 times [2024-10-13 10:03:56,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 10:03:56,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485420848] [2024-10-13 10:03:56,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 10:03:56,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 10:03:56,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 10:03:56,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 10:03:56,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 10:03:56,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485420848] [2024-10-13 10:03:56,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [485420848] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 10:03:56,431 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 10:03:56,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 10:03:56,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116742758] [2024-10-13 10:03:56,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 10:03:56,432 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 10:03:56,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 10:03:56,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 10:03:56,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 10:03:56,450 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 123 [2024-10-13 10:03:56,451 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 137 transitions, 407 flow. Second operand has 3 states, 3 states have (on average 111.33333333333333) internal successors, (334), 3 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:03:56,451 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 10:03:56,451 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 123 [2024-10-13 10:03:56,451 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 10:03:56,491 INFO L124 PetriNetUnfolderBase]: 27/271 cut-off events. [2024-10-13 10:03:56,491 INFO L125 PetriNetUnfolderBase]: For 30/39 co-relation queries the response was YES. [2024-10-13 10:03:56,492 INFO L83 FinitePrefix]: Finished finitePrefix Result has 449 conditions, 271 events. 27/271 cut-off events. For 30/39 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 879 event pairs, 0 based on Foata normal form. 0/257 useless extension candidates. Maximal degree in co-relation 361. Up to 49 conditions per place. [2024-10-13 10:03:56,493 INFO L140 encePairwiseOnDemand]: 120/123 looper letters, 8 selfloop transitions, 2 changer transitions 0/136 dead transitions. [2024-10-13 10:03:56,493 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 136 transitions, 425 flow [2024-10-13 10:03:56,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 10:03:56,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 10:03:56,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 338 transitions. [2024-10-13 10:03:56,494 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9159891598915989 [2024-10-13 10:03:56,495 INFO L175 Difference]: Start difference. First operand has 132 places, 137 transitions, 407 flow. Second operand 3 states and 338 transitions. [2024-10-13 10:03:56,495 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 136 transitions, 425 flow [2024-10-13 10:03:56,499 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 136 transitions, 421 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-13 10:03:56,501 INFO L231 Difference]: Finished difference. Result has 131 places, 136 transitions, 405 flow [2024-10-13 10:03:56,501 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=123, PETRI_DIFFERENCE_MINUEND_FLOW=401, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=134, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=405, PETRI_PLACES=131, PETRI_TRANSITIONS=136} [2024-10-13 10:03:56,502 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, 9 predicate places. [2024-10-13 10:03:56,503 INFO L471 AbstractCegarLoop]: Abstraction has has 131 places, 136 transitions, 405 flow [2024-10-13 10:03:56,504 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 111.33333333333333) internal successors, (334), 3 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:03:56,504 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 10:03:56,505 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 10:03:56,505 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-13 10:03:56,505 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-10-13 10:03:56,505 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 10:03:56,505 INFO L85 PathProgramCache]: Analyzing trace with hash -593791463, now seen corresponding path program 1 times [2024-10-13 10:03:56,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 10:03:56,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980675194] [2024-10-13 10:03:56,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 10:03:56,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 10:03:56,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 10:03:56,885 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-13 10:03:56,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 10:03:56,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980675194] [2024-10-13 10:03:56,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1980675194] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 10:03:56,886 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 10:03:56,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 10:03:56,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663956545] [2024-10-13 10:03:56,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 10:03:56,887 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 10:03:56,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 10:03:56,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 10:03:56,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-13 10:03:57,015 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 123 [2024-10-13 10:03:57,016 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 136 transitions, 405 flow. Second operand has 6 states, 6 states have (on average 98.16666666666667) internal successors, (589), 6 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:03:57,016 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 10:03:57,016 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 123 [2024-10-13 10:03:57,016 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 10:03:57,179 INFO L124 PetriNetUnfolderBase]: 104/617 cut-off events. [2024-10-13 10:03:57,180 INFO L125 PetriNetUnfolderBase]: For 104/104 co-relation queries the response was YES. [2024-10-13 10:03:57,181 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1142 conditions, 617 events. 104/617 cut-off events. For 104/104 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 3288 event pairs, 26 based on Foata normal form. 0/589 useless extension candidates. Maximal degree in co-relation 1023. Up to 203 conditions per place. [2024-10-13 10:03:57,184 INFO L140 encePairwiseOnDemand]: 112/123 looper letters, 48 selfloop transitions, 21 changer transitions 7/166 dead transitions. [2024-10-13 10:03:57,185 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 166 transitions, 646 flow [2024-10-13 10:03:57,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 10:03:57,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 10:03:57,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 631 transitions. [2024-10-13 10:03:57,188 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8550135501355014 [2024-10-13 10:03:57,188 INFO L175 Difference]: Start difference. First operand has 131 places, 136 transitions, 405 flow. Second operand 6 states and 631 transitions. [2024-10-13 10:03:57,188 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 166 transitions, 646 flow [2024-10-13 10:03:57,192 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 166 transitions, 642 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-13 10:03:57,194 INFO L231 Difference]: Finished difference. Result has 139 places, 151 transitions, 562 flow [2024-10-13 10:03:57,195 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=123, PETRI_DIFFERENCE_MINUEND_FLOW=401, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=562, PETRI_PLACES=139, PETRI_TRANSITIONS=151} [2024-10-13 10:03:57,196 INFO L277 CegarLoopForPetriNet]: 122 programPoint places, 17 predicate places. [2024-10-13 10:03:57,196 INFO L471 AbstractCegarLoop]: Abstraction has has 139 places, 151 transitions, 562 flow [2024-10-13 10:03:57,197 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 98.16666666666667) internal successors, (589), 6 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:03:57,197 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 10:03:57,197 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 10:03:57,197 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-13 10:03:57,198 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-10-13 10:03:57,198 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 10:03:57,199 INFO L85 PathProgramCache]: Analyzing trace with hash -2135801545, now seen corresponding path program 1 times [2024-10-13 10:03:57,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 10:03:57,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162513391] [2024-10-13 10:03:57,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 10:03:57,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 10:03:57,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 10:03:57,240 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 10:03:57,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 10:03:57,288 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 10:03:57,289 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-13 10:03:57,291 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (14 of 15 remaining) [2024-10-13 10:03:57,293 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (13 of 15 remaining) [2024-10-13 10:03:57,296 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (12 of 15 remaining) [2024-10-13 10:03:57,296 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (11 of 15 remaining) [2024-10-13 10:03:57,296 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (10 of 15 remaining) [2024-10-13 10:03:57,297 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (9 of 15 remaining) [2024-10-13 10:03:57,297 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (8 of 15 remaining) [2024-10-13 10:03:57,297 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (7 of 15 remaining) [2024-10-13 10:03:57,297 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONDATA_RACE (6 of 15 remaining) [2024-10-13 10:03:57,298 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr4ASSERT_VIOLATIONDATA_RACE (5 of 15 remaining) [2024-10-13 10:03:57,298 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (4 of 15 remaining) [2024-10-13 10:03:57,298 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (3 of 15 remaining) [2024-10-13 10:03:57,298 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (2 of 15 remaining) [2024-10-13 10:03:57,298 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONDATA_RACE (1 of 15 remaining) [2024-10-13 10:03:57,298 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr4ASSERT_VIOLATIONDATA_RACE (0 of 15 remaining) [2024-10-13 10:03:57,299 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-13 10:03:57,299 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 10:03:57,303 WARN L239 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-13 10:03:57,303 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-10-13 10:03:57,340 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-10-13 10:03:57,346 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 163 places, 163 transitions, 342 flow [2024-10-13 10:03:57,379 INFO L124 PetriNetUnfolderBase]: 11/269 cut-off events. [2024-10-13 10:03:57,380 INFO L125 PetriNetUnfolderBase]: For 6/8 co-relation queries the response was YES. [2024-10-13 10:03:57,381 INFO L83 FinitePrefix]: Finished finitePrefix Result has 281 conditions, 269 events. 11/269 cut-off events. For 6/8 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 605 event pairs, 0 based on Foata normal form. 0/231 useless extension candidates. Maximal degree in co-relation 160. Up to 8 conditions per place. [2024-10-13 10:03:57,381 INFO L82 GeneralOperation]: Start removeDead. Operand has 163 places, 163 transitions, 342 flow [2024-10-13 10:03:57,385 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 163 places, 163 transitions, 342 flow [2024-10-13 10:03:57,386 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 10:03:57,387 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;@84af582, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 10:03:57,387 INFO L334 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2024-10-13 10:03:57,390 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-13 10:03:57,391 INFO L124 PetriNetUnfolderBase]: 1/32 cut-off events. [2024-10-13 10:03:57,391 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-13 10:03:57,391 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 10:03:57,391 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 10:03:57,391 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-10-13 10:03:57,392 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 10:03:57,392 INFO L85 PathProgramCache]: Analyzing trace with hash -1838005210, now seen corresponding path program 1 times [2024-10-13 10:03:57,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 10:03:57,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088042883] [2024-10-13 10:03:57,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 10:03:57,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 10:03:57,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 10:03:57,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 10:03:57,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 10:03:57,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088042883] [2024-10-13 10:03:57,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2088042883] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 10:03:57,423 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 10:03:57,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 10:03:57,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551294414] [2024-10-13 10:03:57,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 10:03:57,423 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 10:03:57,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 10:03:57,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 10:03:57,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 10:03:57,450 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 163 [2024-10-13 10:03:57,451 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 163 places, 163 transitions, 342 flow. Second operand has 3 states, 3 states have (on average 143.33333333333334) internal successors, (430), 3 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:03:57,451 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 10:03:57,451 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 163 [2024-10-13 10:03:57,451 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 10:03:57,599 INFO L124 PetriNetUnfolderBase]: 81/1022 cut-off events. [2024-10-13 10:03:57,599 INFO L125 PetriNetUnfolderBase]: For 44/44 co-relation queries the response was YES. [2024-10-13 10:03:57,604 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1213 conditions, 1022 events. 81/1022 cut-off events. For 44/44 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 6455 event pairs, 78 based on Foata normal form. 40/927 useless extension candidates. Maximal degree in co-relation 874. Up to 162 conditions per place. [2024-10-13 10:03:57,609 INFO L140 encePairwiseOnDemand]: 157/163 looper letters, 15 selfloop transitions, 2 changer transitions 1/159 dead transitions. [2024-10-13 10:03:57,609 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 159 transitions, 368 flow [2024-10-13 10:03:57,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 10:03:57,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 10:03:57,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 447 transitions. [2024-10-13 10:03:57,611 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9141104294478528 [2024-10-13 10:03:57,611 INFO L175 Difference]: Start difference. First operand has 163 places, 163 transitions, 342 flow. Second operand 3 states and 447 transitions. [2024-10-13 10:03:57,611 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 164 places, 159 transitions, 368 flow [2024-10-13 10:03:57,612 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 164 places, 159 transitions, 368 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-13 10:03:57,614 INFO L231 Difference]: Finished difference. Result has 164 places, 158 transitions, 336 flow [2024-10-13 10:03:57,614 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=334, PETRI_DIFFERENCE_MINUEND_PLACES=162, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=159, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=157, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=336, PETRI_PLACES=164, PETRI_TRANSITIONS=158} [2024-10-13 10:03:57,616 INFO L277 CegarLoopForPetriNet]: 163 programPoint places, 1 predicate places. [2024-10-13 10:03:57,616 INFO L471 AbstractCegarLoop]: Abstraction has has 164 places, 158 transitions, 336 flow [2024-10-13 10:03:57,617 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 143.33333333333334) internal successors, (430), 3 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:03:57,617 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 10:03:57,617 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 10:03:57,617 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-13 10:03:57,617 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-10-13 10:03:57,618 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 10:03:57,618 INFO L85 PathProgramCache]: Analyzing trace with hash -1976212306, now seen corresponding path program 1 times [2024-10-13 10:03:57,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 10:03:57,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115778433] [2024-10-13 10:03:57,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 10:03:57,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 10:03:57,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 10:03:57,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 10:03:57,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 10:03:57,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115778433] [2024-10-13 10:03:57,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1115778433] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 10:03:57,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 10:03:57,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 10:03:57,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388418645] [2024-10-13 10:03:57,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 10:03:57,660 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 10:03:57,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 10:03:57,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 10:03:57,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 10:03:57,679 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 163 [2024-10-13 10:03:57,680 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 164 places, 158 transitions, 336 flow. Second operand has 3 states, 3 states have (on average 143.0) internal successors, (429), 3 states have internal predecessors, (429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:03:57,680 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 10:03:57,680 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 163 [2024-10-13 10:03:57,680 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 10:03:57,836 INFO L124 PetriNetUnfolderBase]: 132/1100 cut-off events. [2024-10-13 10:03:57,836 INFO L125 PetriNetUnfolderBase]: For 57/57 co-relation queries the response was YES. [2024-10-13 10:03:57,841 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1383 conditions, 1100 events. 132/1100 cut-off events. For 57/57 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 6908 event pairs, 61 based on Foata normal form. 0/1013 useless extension candidates. Maximal degree in co-relation 1342. Up to 227 conditions per place. [2024-10-13 10:03:57,846 INFO L140 encePairwiseOnDemand]: 157/163 looper letters, 20 selfloop transitions, 3 changer transitions 0/163 dead transitions. [2024-10-13 10:03:57,847 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 162 places, 163 transitions, 397 flow [2024-10-13 10:03:57,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 10:03:57,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 10:03:57,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 452 transitions. [2024-10-13 10:03:57,848 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9243353783231084 [2024-10-13 10:03:57,849 INFO L175 Difference]: Start difference. First operand has 164 places, 158 transitions, 336 flow. Second operand 3 states and 452 transitions. [2024-10-13 10:03:57,849 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 162 places, 163 transitions, 397 flow [2024-10-13 10:03:57,850 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 160 places, 163 transitions, 393 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-13 10:03:57,852 INFO L231 Difference]: Finished difference. Result has 161 places, 158 transitions, 347 flow [2024-10-13 10:03:57,852 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=326, PETRI_DIFFERENCE_MINUEND_PLACES=158, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=155, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=152, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=347, PETRI_PLACES=161, PETRI_TRANSITIONS=158} [2024-10-13 10:03:57,853 INFO L277 CegarLoopForPetriNet]: 163 programPoint places, -2 predicate places. [2024-10-13 10:03:57,853 INFO L471 AbstractCegarLoop]: Abstraction has has 161 places, 158 transitions, 347 flow [2024-10-13 10:03:57,854 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 143.0) internal successors, (429), 3 states have internal predecessors, (429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:03:57,854 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 10:03:57,854 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 10:03:57,854 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-13 10:03:57,854 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-10-13 10:03:57,856 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 10:03:57,856 INFO L85 PathProgramCache]: Analyzing trace with hash 1060372741, now seen corresponding path program 1 times [2024-10-13 10:03:57,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 10:03:57,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671278927] [2024-10-13 10:03:57,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 10:03:57,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 10:03:57,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 10:03:58,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 10:03:58,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 10:03:58,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671278927] [2024-10-13 10:03:58,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1671278927] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 10:03:58,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 10:03:58,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 10:03:58,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635117556] [2024-10-13 10:03:58,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 10:03:58,128 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 10:03:58,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 10:03:58,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 10:03:58,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-13 10:03:58,278 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 163 [2024-10-13 10:03:58,279 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 158 transitions, 347 flow. Second operand has 6 states, 6 states have (on average 127.5) internal successors, (765), 6 states have internal predecessors, (765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:03:58,280 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 10:03:58,280 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 163 [2024-10-13 10:03:58,280 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 10:03:59,262 INFO L124 PetriNetUnfolderBase]: 1894/6617 cut-off events. [2024-10-13 10:03:59,263 INFO L125 PetriNetUnfolderBase]: For 118/118 co-relation queries the response was YES. [2024-10-13 10:03:59,278 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10038 conditions, 6617 events. 1894/6617 cut-off events. For 118/118 co-relation queries the response was YES. Maximal size of possible extension queue 229. Compared 61977 event pairs, 1033 based on Foata normal form. 0/5913 useless extension candidates. Maximal degree in co-relation 5446. Up to 2649 conditions per place. [2024-10-13 10:03:59,310 INFO L140 encePairwiseOnDemand]: 148/163 looper letters, 50 selfloop transitions, 38 changer transitions 0/212 dead transitions. [2024-10-13 10:03:59,311 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 166 places, 212 transitions, 636 flow [2024-10-13 10:03:59,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 10:03:59,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 10:03:59,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 845 transitions. [2024-10-13 10:03:59,314 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8640081799591002 [2024-10-13 10:03:59,314 INFO L175 Difference]: Start difference. First operand has 161 places, 158 transitions, 347 flow. Second operand 6 states and 845 transitions. [2024-10-13 10:03:59,314 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 166 places, 212 transitions, 636 flow [2024-10-13 10:03:59,316 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 212 transitions, 636 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-13 10:03:59,320 INFO L231 Difference]: Finished difference. Result has 171 places, 195 transitions, 601 flow [2024-10-13 10:03:59,320 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=347, PETRI_DIFFERENCE_MINUEND_PLACES=161, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=158, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=601, PETRI_PLACES=171, PETRI_TRANSITIONS=195} [2024-10-13 10:03:59,321 INFO L277 CegarLoopForPetriNet]: 163 programPoint places, 8 predicate places. [2024-10-13 10:03:59,321 INFO L471 AbstractCegarLoop]: Abstraction has has 171 places, 195 transitions, 601 flow [2024-10-13 10:03:59,322 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 127.5) internal successors, (765), 6 states have internal predecessors, (765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:03:59,322 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 10:03:59,322 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 10:03:59,322 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-13 10:03:59,322 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-10-13 10:03:59,323 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 10:03:59,323 INFO L85 PathProgramCache]: Analyzing trace with hash -711447876, now seen corresponding path program 1 times [2024-10-13 10:03:59,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 10:03:59,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997021424] [2024-10-13 10:03:59,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 10:03:59,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 10:03:59,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 10:03:59,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 10:03:59,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 10:03:59,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997021424] [2024-10-13 10:03:59,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997021424] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 10:03:59,385 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 10:03:59,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 10:03:59,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431139669] [2024-10-13 10:03:59,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 10:03:59,386 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 10:03:59,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 10:03:59,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 10:03:59,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-13 10:03:59,466 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 163 [2024-10-13 10:03:59,467 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 171 places, 195 transitions, 601 flow. Second operand has 5 states, 5 states have (on average 142.4) internal successors, (712), 5 states have internal predecessors, (712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:03:59,468 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 10:03:59,468 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 163 [2024-10-13 10:03:59,468 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 10:03:59,962 INFO L124 PetriNetUnfolderBase]: 798/3928 cut-off events. [2024-10-13 10:03:59,963 INFO L125 PetriNetUnfolderBase]: For 430/661 co-relation queries the response was YES. [2024-10-13 10:03:59,978 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6350 conditions, 3928 events. 798/3928 cut-off events. For 430/661 co-relation queries the response was YES. Maximal size of possible extension queue 139. Compared 35076 event pairs, 305 based on Foata normal form. 2/3565 useless extension candidates. Maximal degree in co-relation 3849. Up to 1048 conditions per place. [2024-10-13 10:04:00,078 INFO L140 encePairwiseOnDemand]: 155/163 looper letters, 20 selfloop transitions, 2 changer transitions 5/203 dead transitions. [2024-10-13 10:04:00,079 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 176 places, 203 transitions, 671 flow [2024-10-13 10:04:00,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 10:04:00,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 10:04:00,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 874 transitions. [2024-10-13 10:04:00,082 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8936605316973415 [2024-10-13 10:04:00,082 INFO L175 Difference]: Start difference. First operand has 171 places, 195 transitions, 601 flow. Second operand 6 states and 874 transitions. [2024-10-13 10:04:00,082 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 176 places, 203 transitions, 671 flow [2024-10-13 10:04:00,087 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 176 places, 203 transitions, 671 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-13 10:04:00,089 INFO L231 Difference]: Finished difference. Result has 180 places, 196 transitions, 623 flow [2024-10-13 10:04:00,090 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=601, PETRI_DIFFERENCE_MINUEND_PLACES=171, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=195, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=193, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=623, PETRI_PLACES=180, PETRI_TRANSITIONS=196} [2024-10-13 10:04:00,091 INFO L277 CegarLoopForPetriNet]: 163 programPoint places, 17 predicate places. [2024-10-13 10:04:00,091 INFO L471 AbstractCegarLoop]: Abstraction has has 180 places, 196 transitions, 623 flow [2024-10-13 10:04:00,091 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 142.4) internal successors, (712), 5 states have internal predecessors, (712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:04:00,091 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 10:04:00,092 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 10:04:00,092 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-13 10:04:00,092 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-10-13 10:04:00,092 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 10:04:00,092 INFO L85 PathProgramCache]: Analyzing trace with hash -185179167, now seen corresponding path program 1 times [2024-10-13 10:04:00,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 10:04:00,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373654718] [2024-10-13 10:04:00,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 10:04:00,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 10:04:00,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 10:04:00,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 10:04:00,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 10:04:00,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373654718] [2024-10-13 10:04:00,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [373654718] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 10:04:00,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 10:04:00,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 10:04:00,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443581150] [2024-10-13 10:04:00,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 10:04:00,124 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 10:04:00,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 10:04:00,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 10:04:00,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 10:04:00,147 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 163 [2024-10-13 10:04:00,147 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 180 places, 196 transitions, 623 flow. Second operand has 3 states, 3 states have (on average 139.33333333333334) internal successors, (418), 3 states have internal predecessors, (418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:04:00,148 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 10:04:00,148 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 163 [2024-10-13 10:04:00,148 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 10:04:00,685 INFO L124 PetriNetUnfolderBase]: 873/3951 cut-off events. [2024-10-13 10:04:00,686 INFO L125 PetriNetUnfolderBase]: For 741/1082 co-relation queries the response was YES. [2024-10-13 10:04:00,702 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7130 conditions, 3951 events. 873/3951 cut-off events. For 741/1082 co-relation queries the response was YES. Maximal size of possible extension queue 202. Compared 37619 event pairs, 171 based on Foata normal form. 1/3640 useless extension candidates. Maximal degree in co-relation 7031. Up to 1139 conditions per place. [2024-10-13 10:04:00,769 INFO L140 encePairwiseOnDemand]: 149/163 looper letters, 29 selfloop transitions, 10 changer transitions 0/213 dead transitions. [2024-10-13 10:04:00,770 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 179 places, 213 transitions, 746 flow [2024-10-13 10:04:00,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 10:04:00,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 10:04:00,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 457 transitions. [2024-10-13 10:04:00,772 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.934560327198364 [2024-10-13 10:04:00,772 INFO L175 Difference]: Start difference. First operand has 180 places, 196 transitions, 623 flow. Second operand 3 states and 457 transitions. [2024-10-13 10:04:00,772 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 179 places, 213 transitions, 746 flow [2024-10-13 10:04:00,785 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 175 places, 213 transitions, 734 flow, removed 5 selfloop flow, removed 4 redundant places. [2024-10-13 10:04:00,789 INFO L231 Difference]: Finished difference. Result has 177 places, 206 transitions, 699 flow [2024-10-13 10:04:00,790 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=611, PETRI_DIFFERENCE_MINUEND_PLACES=173, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=196, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=186, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=699, PETRI_PLACES=177, PETRI_TRANSITIONS=206} [2024-10-13 10:04:00,790 INFO L277 CegarLoopForPetriNet]: 163 programPoint places, 14 predicate places. [2024-10-13 10:04:00,790 INFO L471 AbstractCegarLoop]: Abstraction has has 177 places, 206 transitions, 699 flow [2024-10-13 10:04:00,791 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 139.33333333333334) internal successors, (418), 3 states have internal predecessors, (418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:04:00,791 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 10:04:00,792 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 10:04:00,792 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-13 10:04:00,793 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting threadErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-10-13 10:04:00,793 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 10:04:00,793 INFO L85 PathProgramCache]: Analyzing trace with hash 1784947014, now seen corresponding path program 1 times [2024-10-13 10:04:00,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 10:04:00,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752506921] [2024-10-13 10:04:00,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 10:04:00,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 10:04:00,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 10:04:00,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 10:04:00,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 10:04:00,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752506921] [2024-10-13 10:04:00,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1752506921] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 10:04:00,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 10:04:00,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 10:04:00,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352036737] [2024-10-13 10:04:00,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 10:04:00,852 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 10:04:00,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 10:04:00,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 10:04:00,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 10:04:00,884 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 163 [2024-10-13 10:04:00,885 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 177 places, 206 transitions, 699 flow. Second operand has 3 states, 3 states have (on average 144.33333333333334) internal successors, (433), 3 states have internal predecessors, (433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:04:00,886 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 10:04:00,886 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 163 [2024-10-13 10:04:00,886 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 10:04:01,706 INFO L124 PetriNetUnfolderBase]: 933/4469 cut-off events. [2024-10-13 10:04:01,706 INFO L125 PetriNetUnfolderBase]: For 1024/1415 co-relation queries the response was YES. [2024-10-13 10:04:01,721 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8163 conditions, 4469 events. 933/4469 cut-off events. For 1024/1415 co-relation queries the response was YES. Maximal size of possible extension queue 233. Compared 44732 event pairs, 189 based on Foata normal form. 9/4125 useless extension candidates. Maximal degree in co-relation 7080. Up to 1280 conditions per place. [2024-10-13 10:04:01,736 INFO L140 encePairwiseOnDemand]: 156/163 looper letters, 26 selfloop transitions, 9 changer transitions 0/217 dead transitions. [2024-10-13 10:04:01,736 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 179 places, 217 transitions, 815 flow [2024-10-13 10:04:01,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 10:04:01,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 10:04:01,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 454 transitions. [2024-10-13 10:04:01,738 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9284253578732107 [2024-10-13 10:04:01,739 INFO L175 Difference]: Start difference. First operand has 177 places, 206 transitions, 699 flow. Second operand 3 states and 454 transitions. [2024-10-13 10:04:01,739 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 179 places, 217 transitions, 815 flow [2024-10-13 10:04:01,748 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 177 places, 217 transitions, 789 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-13 10:04:01,751 INFO L231 Difference]: Finished difference. Result has 179 places, 213 transitions, 755 flow [2024-10-13 10:04:01,751 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=679, PETRI_DIFFERENCE_MINUEND_PLACES=175, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=206, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=197, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=755, PETRI_PLACES=179, PETRI_TRANSITIONS=213} [2024-10-13 10:04:01,753 INFO L277 CegarLoopForPetriNet]: 163 programPoint places, 16 predicate places. [2024-10-13 10:04:01,753 INFO L471 AbstractCegarLoop]: Abstraction has has 179 places, 213 transitions, 755 flow [2024-10-13 10:04:01,754 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 144.33333333333334) internal successors, (433), 3 states have internal predecessors, (433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:04:01,754 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 10:04:01,754 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 10:04:01,754 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-13 10:04:01,754 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-10-13 10:04:01,755 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 10:04:01,755 INFO L85 PathProgramCache]: Analyzing trace with hash 1781970850, now seen corresponding path program 1 times [2024-10-13 10:04:01,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 10:04:01,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544702954] [2024-10-13 10:04:01,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 10:04:01,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 10:04:01,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 10:04:02,059 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-13 10:04:02,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 10:04:02,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544702954] [2024-10-13 10:04:02,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1544702954] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 10:04:02,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 10:04:02,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 10:04:02,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611966955] [2024-10-13 10:04:02,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 10:04:02,063 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 10:04:02,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 10:04:02,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 10:04:02,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-13 10:04:02,207 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 163 [2024-10-13 10:04:02,208 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 179 places, 213 transitions, 755 flow. Second operand has 6 states, 6 states have (on average 130.16666666666666) internal successors, (781), 6 states have internal predecessors, (781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:04:02,208 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 10:04:02,208 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 163 [2024-10-13 10:04:02,208 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 10:04:03,965 INFO L124 PetriNetUnfolderBase]: 3463/12362 cut-off events. [2024-10-13 10:04:03,966 INFO L125 PetriNetUnfolderBase]: For 3173/3468 co-relation queries the response was YES. [2024-10-13 10:04:04,015 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25334 conditions, 12362 events. 3463/12362 cut-off events. For 3173/3468 co-relation queries the response was YES. Maximal size of possible extension queue 496. Compared 138879 event pairs, 1210 based on Foata normal form. 8/11483 useless extension candidates. Maximal degree in co-relation 23198. Up to 4790 conditions per place. [2024-10-13 10:04:04,078 INFO L140 encePairwiseOnDemand]: 148/163 looper letters, 84 selfloop transitions, 38 changer transitions 0/268 dead transitions. [2024-10-13 10:04:04,079 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 184 places, 268 transitions, 1179 flow [2024-10-13 10:04:04,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 10:04:04,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 10:04:04,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 856 transitions. [2024-10-13 10:04:04,082 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8752556237218814 [2024-10-13 10:04:04,082 INFO L175 Difference]: Start difference. First operand has 179 places, 213 transitions, 755 flow. Second operand 6 states and 856 transitions. [2024-10-13 10:04:04,082 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 184 places, 268 transitions, 1179 flow [2024-10-13 10:04:04,104 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 182 places, 268 transitions, 1161 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-13 10:04:04,109 INFO L231 Difference]: Finished difference. Result has 187 places, 250 transitions, 1055 flow [2024-10-13 10:04:04,111 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=737, PETRI_DIFFERENCE_MINUEND_PLACES=177, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=213, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=199, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1055, PETRI_PLACES=187, PETRI_TRANSITIONS=250} [2024-10-13 10:04:04,112 INFO L277 CegarLoopForPetriNet]: 163 programPoint places, 24 predicate places. [2024-10-13 10:04:04,112 INFO L471 AbstractCegarLoop]: Abstraction has has 187 places, 250 transitions, 1055 flow [2024-10-13 10:04:04,113 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 130.16666666666666) internal successors, (781), 6 states have internal predecessors, (781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:04:04,113 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 10:04:04,113 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 10:04:04,113 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-13 10:04:04,113 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting threadErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-10-13 10:04:04,114 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 10:04:04,114 INFO L85 PathProgramCache]: Analyzing trace with hash 1194309672, now seen corresponding path program 1 times [2024-10-13 10:04:04,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 10:04:04,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810810773] [2024-10-13 10:04:04,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 10:04:04,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 10:04:04,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 10:04:04,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 10:04:04,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 10:04:04,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810810773] [2024-10-13 10:04:04,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1810810773] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 10:04:04,582 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 10:04:04,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 10:04:04,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276178854] [2024-10-13 10:04:04,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 10:04:04,583 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 10:04:04,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 10:04:04,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 10:04:04,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-13 10:04:04,683 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 163 [2024-10-13 10:04:04,684 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 187 places, 250 transitions, 1055 flow. Second operand has 6 states, 6 states have (on average 130.83333333333334) internal successors, (785), 6 states have internal predecessors, (785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:04:04,684 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 10:04:04,684 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 163 [2024-10-13 10:04:04,685 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 10:04:07,282 INFO L124 PetriNetUnfolderBase]: 6379/20106 cut-off events. [2024-10-13 10:04:07,283 INFO L125 PetriNetUnfolderBase]: For 9906/10186 co-relation queries the response was YES. [2024-10-13 10:04:07,353 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48936 conditions, 20106 events. 6379/20106 cut-off events. For 9906/10186 co-relation queries the response was YES. Maximal size of possible extension queue 593. Compared 225487 event pairs, 1628 based on Foata normal form. 12/18714 useless extension candidates. Maximal degree in co-relation 43007. Up to 8153 conditions per place. [2024-10-13 10:04:07,435 INFO L140 encePairwiseOnDemand]: 144/163 looper letters, 139 selfloop transitions, 118 changer transitions 0/405 dead transitions. [2024-10-13 10:04:07,435 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 192 places, 405 transitions, 2443 flow [2024-10-13 10:04:07,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 10:04:07,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 10:04:07,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 882 transitions. [2024-10-13 10:04:07,439 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.901840490797546 [2024-10-13 10:04:07,439 INFO L175 Difference]: Start difference. First operand has 187 places, 250 transitions, 1055 flow. Second operand 6 states and 882 transitions. [2024-10-13 10:04:07,439 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 192 places, 405 transitions, 2443 flow [2024-10-13 10:04:07,519 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 192 places, 405 transitions, 2311 flow, removed 66 selfloop flow, removed 0 redundant places. [2024-10-13 10:04:07,527 INFO L231 Difference]: Finished difference. Result has 196 places, 362 transitions, 2121 flow [2024-10-13 10:04:07,527 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=991, PETRI_DIFFERENCE_MINUEND_PLACES=187, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=250, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=180, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2121, PETRI_PLACES=196, PETRI_TRANSITIONS=362} [2024-10-13 10:04:07,528 INFO L277 CegarLoopForPetriNet]: 163 programPoint places, 33 predicate places. [2024-10-13 10:04:07,528 INFO L471 AbstractCegarLoop]: Abstraction has has 196 places, 362 transitions, 2121 flow [2024-10-13 10:04:07,528 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 130.83333333333334) internal successors, (785), 6 states have internal predecessors, (785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:04:07,529 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 10:04:07,529 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 10:04:07,529 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-13 10:04:07,529 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting threadErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-10-13 10:04:07,529 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 10:04:07,530 INFO L85 PathProgramCache]: Analyzing trace with hash 144639777, now seen corresponding path program 1 times [2024-10-13 10:04:07,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 10:04:07,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118807003] [2024-10-13 10:04:07,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 10:04:07,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 10:04:07,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 10:04:07,708 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-10-13 10:04:07,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 10:04:07,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118807003] [2024-10-13 10:04:07,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118807003] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 10:04:07,709 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 10:04:07,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 10:04:07,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410918845] [2024-10-13 10:04:07,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 10:04:07,711 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 10:04:07,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 10:04:07,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 10:04:07,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 10:04:07,737 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 163 [2024-10-13 10:04:07,738 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 196 places, 362 transitions, 2121 flow. Second operand has 3 states, 3 states have (on average 144.66666666666666) internal successors, (434), 3 states have internal predecessors, (434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:04:07,738 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 10:04:07,738 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 163 [2024-10-13 10:04:07,738 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 10:04:09,573 INFO L124 PetriNetUnfolderBase]: 4457/15454 cut-off events. [2024-10-13 10:04:09,574 INFO L125 PetriNetUnfolderBase]: For 11548/13305 co-relation queries the response was YES. [2024-10-13 10:04:09,654 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42386 conditions, 15454 events. 4457/15454 cut-off events. For 11548/13305 co-relation queries the response was YES. Maximal size of possible extension queue 556. Compared 174330 event pairs, 356 based on Foata normal form. 12/14769 useless extension candidates. Maximal degree in co-relation 38260. Up to 3717 conditions per place. [2024-10-13 10:04:09,739 INFO L140 encePairwiseOnDemand]: 156/163 looper letters, 28 selfloop transitions, 11 changer transitions 0/372 dead transitions. [2024-10-13 10:04:09,739 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 198 places, 372 transitions, 2236 flow [2024-10-13 10:04:09,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 10:04:09,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 10:04:09,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 453 transitions. [2024-10-13 10:04:09,741 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9263803680981595 [2024-10-13 10:04:09,741 INFO L175 Difference]: Start difference. First operand has 196 places, 362 transitions, 2121 flow. Second operand 3 states and 453 transitions. [2024-10-13 10:04:09,741 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 198 places, 372 transitions, 2236 flow [2024-10-13 10:04:10,008 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 198 places, 372 transitions, 2200 flow, removed 18 selfloop flow, removed 0 redundant places. [2024-10-13 10:04:10,014 INFO L231 Difference]: Finished difference. Result has 200 places, 369 transitions, 2173 flow [2024-10-13 10:04:10,014 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=2085, PETRI_DIFFERENCE_MINUEND_PLACES=196, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=362, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=351, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2173, PETRI_PLACES=200, PETRI_TRANSITIONS=369} [2024-10-13 10:04:10,015 INFO L277 CegarLoopForPetriNet]: 163 programPoint places, 37 predicate places. [2024-10-13 10:04:10,015 INFO L471 AbstractCegarLoop]: Abstraction has has 200 places, 369 transitions, 2173 flow [2024-10-13 10:04:10,016 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 144.66666666666666) internal successors, (434), 3 states have internal predecessors, (434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:04:10,016 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 10:04:10,016 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 10:04:10,016 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-13 10:04:10,016 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-10-13 10:04:10,017 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 10:04:10,017 INFO L85 PathProgramCache]: Analyzing trace with hash 1220047644, now seen corresponding path program 1 times [2024-10-13 10:04:10,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 10:04:10,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809385642] [2024-10-13 10:04:10,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 10:04:10,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 10:04:10,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 10:04:10,043 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 10:04:10,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 10:04:10,072 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 10:04:10,072 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-13 10:04:10,072 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 20 remaining) [2024-10-13 10:04:10,073 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (18 of 20 remaining) [2024-10-13 10:04:10,073 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (17 of 20 remaining) [2024-10-13 10:04:10,073 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (16 of 20 remaining) [2024-10-13 10:04:10,073 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (15 of 20 remaining) [2024-10-13 10:04:10,073 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (14 of 20 remaining) [2024-10-13 10:04:10,074 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (13 of 20 remaining) [2024-10-13 10:04:10,074 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (12 of 20 remaining) [2024-10-13 10:04:10,074 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONDATA_RACE (11 of 20 remaining) [2024-10-13 10:04:10,074 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr4ASSERT_VIOLATIONDATA_RACE (10 of 20 remaining) [2024-10-13 10:04:10,074 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (9 of 20 remaining) [2024-10-13 10:04:10,074 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (8 of 20 remaining) [2024-10-13 10:04:10,075 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (7 of 20 remaining) [2024-10-13 10:04:10,141 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONDATA_RACE (6 of 20 remaining) [2024-10-13 10:04:10,141 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr4ASSERT_VIOLATIONDATA_RACE (5 of 20 remaining) [2024-10-13 10:04:10,141 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (4 of 20 remaining) [2024-10-13 10:04:10,141 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (3 of 20 remaining) [2024-10-13 10:04:10,141 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (2 of 20 remaining) [2024-10-13 10:04:10,141 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONDATA_RACE (1 of 20 remaining) [2024-10-13 10:04:10,141 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr4ASSERT_VIOLATIONDATA_RACE (0 of 20 remaining) [2024-10-13 10:04:10,141 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-13 10:04:10,141 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 10:04:10,142 WARN L239 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-13 10:04:10,142 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-10-13 10:04:10,179 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-10-13 10:04:10,183 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 204 places, 203 transitions, 433 flow [2024-10-13 10:04:10,235 INFO L124 PetriNetUnfolderBase]: 21/433 cut-off events. [2024-10-13 10:04:10,236 INFO L125 PetriNetUnfolderBase]: For 19/22 co-relation queries the response was YES. [2024-10-13 10:04:10,238 INFO L83 FinitePrefix]: Finished finitePrefix Result has 458 conditions, 433 events. 21/433 cut-off events. For 19/22 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1289 event pairs, 1 based on Foata normal form. 0/371 useless extension candidates. Maximal degree in co-relation 277. Up to 16 conditions per place. [2024-10-13 10:04:10,238 INFO L82 GeneralOperation]: Start removeDead. Operand has 204 places, 203 transitions, 433 flow [2024-10-13 10:04:10,242 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 204 places, 203 transitions, 433 flow [2024-10-13 10:04:10,243 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 10:04:10,245 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;@84af582, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 10:04:10,245 INFO L334 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2024-10-13 10:04:10,247 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-13 10:04:10,248 INFO L124 PetriNetUnfolderBase]: 1/32 cut-off events. [2024-10-13 10:04:10,248 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-13 10:04:10,248 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 10:04:10,248 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 10:04:10,248 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-13 10:04:10,249 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 10:04:10,249 INFO L85 PathProgramCache]: Analyzing trace with hash -1695812527, now seen corresponding path program 1 times [2024-10-13 10:04:10,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 10:04:10,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33223431] [2024-10-13 10:04:10,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 10:04:10,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 10:04:10,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 10:04:10,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 10:04:10,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 10:04:10,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33223431] [2024-10-13 10:04:10,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [33223431] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 10:04:10,270 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 10:04:10,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 10:04:10,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235644977] [2024-10-13 10:04:10,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 10:04:10,271 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 10:04:10,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 10:04:10,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 10:04:10,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 10:04:10,297 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 177 out of 203 [2024-10-13 10:04:10,299 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 204 places, 203 transitions, 433 flow. Second operand has 3 states, 3 states have (on average 178.33333333333334) internal successors, (535), 3 states have internal predecessors, (535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:04:10,299 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 10:04:10,300 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 177 of 203 [2024-10-13 10:04:10,300 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 10:04:10,801 INFO L124 PetriNetUnfolderBase]: 656/5099 cut-off events. [2024-10-13 10:04:10,801 INFO L125 PetriNetUnfolderBase]: For 337/337 co-relation queries the response was YES. [2024-10-13 10:04:10,817 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6310 conditions, 5099 events. 656/5099 cut-off events. For 337/337 co-relation queries the response was YES. Maximal size of possible extension queue 141. Compared 51112 event pairs, 643 based on Foata normal form. 188/4624 useless extension candidates. Maximal degree in co-relation 4712. Up to 1052 conditions per place. [2024-10-13 10:04:10,836 INFO L140 encePairwiseOnDemand]: 197/203 looper letters, 20 selfloop transitions, 2 changer transitions 1/199 dead transitions. [2024-10-13 10:04:10,836 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 205 places, 199 transitions, 469 flow [2024-10-13 10:04:10,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 10:04:10,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 10:04:10,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 557 transitions. [2024-10-13 10:04:10,838 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9146141215106732 [2024-10-13 10:04:10,838 INFO L175 Difference]: Start difference. First operand has 204 places, 203 transitions, 433 flow. Second operand 3 states and 557 transitions. [2024-10-13 10:04:10,838 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 205 places, 199 transitions, 469 flow [2024-10-13 10:04:10,839 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 205 places, 199 transitions, 469 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-13 10:04:10,842 INFO L231 Difference]: Finished difference. Result has 205 places, 198 transitions, 427 flow [2024-10-13 10:04:10,842 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=203, PETRI_DIFFERENCE_MINUEND_FLOW=425, PETRI_DIFFERENCE_MINUEND_PLACES=203, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=199, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=197, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=427, PETRI_PLACES=205, PETRI_TRANSITIONS=198} [2024-10-13 10:04:10,842 INFO L277 CegarLoopForPetriNet]: 204 programPoint places, 1 predicate places. [2024-10-13 10:04:10,843 INFO L471 AbstractCegarLoop]: Abstraction has has 205 places, 198 transitions, 427 flow [2024-10-13 10:04:10,843 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 178.33333333333334) internal successors, (535), 3 states have internal predecessors, (535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:04:10,843 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 10:04:10,843 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 10:04:10,843 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-13 10:04:10,844 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-13 10:04:10,844 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 10:04:10,844 INFO L85 PathProgramCache]: Analyzing trace with hash 714230158, now seen corresponding path program 1 times [2024-10-13 10:04:10,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 10:04:10,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685710320] [2024-10-13 10:04:10,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 10:04:10,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 10:04:10,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 10:04:10,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 10:04:10,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 10:04:10,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685710320] [2024-10-13 10:04:10,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1685710320] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 10:04:10,863 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 10:04:10,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 10:04:10,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894236300] [2024-10-13 10:04:10,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 10:04:10,864 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 10:04:10,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 10:04:10,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 10:04:10,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 10:04:10,880 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 175 out of 203 [2024-10-13 10:04:10,880 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 205 places, 198 transitions, 427 flow. Second operand has 3 states, 3 states have (on average 176.0) internal successors, (528), 3 states have internal predecessors, (528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:04:10,880 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 10:04:10,881 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 175 of 203 [2024-10-13 10:04:10,881 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 10:04:11,430 INFO L124 PetriNetUnfolderBase]: 1275/6749 cut-off events. [2024-10-13 10:04:11,430 INFO L125 PetriNetUnfolderBase]: For 527/527 co-relation queries the response was YES. [2024-10-13 10:04:11,458 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8947 conditions, 6749 events. 1275/6749 cut-off events. For 527/527 co-relation queries the response was YES. Maximal size of possible extension queue 199. Compared 69228 event pairs, 437 based on Foata normal form. 0/6232 useless extension candidates. Maximal degree in co-relation 8905. Up to 1872 conditions per place. [2024-10-13 10:04:11,483 INFO L140 encePairwiseOnDemand]: 195/203 looper letters, 29 selfloop transitions, 4 changer transitions 0/206 dead transitions. [2024-10-13 10:04:11,483 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 202 places, 206 transitions, 521 flow [2024-10-13 10:04:11,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 10:04:11,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 10:04:11,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 562 transitions. [2024-10-13 10:04:11,485 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.922824302134647 [2024-10-13 10:04:11,485 INFO L175 Difference]: Start difference. First operand has 205 places, 198 transitions, 427 flow. Second operand 3 states and 562 transitions. [2024-10-13 10:04:11,485 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 202 places, 206 transitions, 521 flow [2024-10-13 10:04:11,487 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 200 places, 206 transitions, 517 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-13 10:04:11,490 INFO L231 Difference]: Finished difference. Result has 201 places, 198 transitions, 443 flow [2024-10-13 10:04:11,490 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=203, PETRI_DIFFERENCE_MINUEND_FLOW=415, PETRI_DIFFERENCE_MINUEND_PLACES=198, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=194, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=190, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=443, PETRI_PLACES=201, PETRI_TRANSITIONS=198} [2024-10-13 10:04:11,491 INFO L277 CegarLoopForPetriNet]: 204 programPoint places, -3 predicate places. [2024-10-13 10:04:11,491 INFO L471 AbstractCegarLoop]: Abstraction has has 201 places, 198 transitions, 443 flow [2024-10-13 10:04:11,491 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 176.0) internal successors, (528), 3 states have internal predecessors, (528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:04:11,491 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 10:04:11,491 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 10:04:11,492 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-13 10:04:11,492 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-13 10:04:11,492 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 10:04:11,492 INFO L85 PathProgramCache]: Analyzing trace with hash 1005274949, now seen corresponding path program 1 times [2024-10-13 10:04:11,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 10:04:11,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982006296] [2024-10-13 10:04:11,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 10:04:11,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 10:04:11,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 10:04:11,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 10:04:11,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 10:04:11,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982006296] [2024-10-13 10:04:11,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982006296] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 10:04:11,683 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 10:04:11,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 10:04:11,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018641520] [2024-10-13 10:04:11,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 10:04:11,684 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 10:04:11,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 10:04:11,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 10:04:11,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-13 10:04:11,870 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 158 out of 203 [2024-10-13 10:04:11,871 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 201 places, 198 transitions, 443 flow. Second operand has 6 states, 6 states have (on average 159.5) internal successors, (957), 6 states have internal predecessors, (957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:04:11,872 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 10:04:11,872 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 158 of 203 [2024-10-13 10:04:11,872 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 10:04:19,813 INFO L124 PetriNetUnfolderBase]: 24762/64711 cut-off events. [2024-10-13 10:04:19,814 INFO L125 PetriNetUnfolderBase]: For 2236/2236 co-relation queries the response was YES. [2024-10-13 10:04:20,006 INFO L83 FinitePrefix]: Finished finitePrefix Result has 102379 conditions, 64711 events. 24762/64711 cut-off events. For 2236/2236 co-relation queries the response was YES. Maximal size of possible extension queue 1909. Compared 805141 event pairs, 14369 based on Foata normal form. 0/58481 useless extension candidates. Maximal degree in co-relation 62909. Up to 30792 conditions per place. [2024-10-13 10:04:20,279 INFO L140 encePairwiseOnDemand]: 184/203 looper letters, 67 selfloop transitions, 54 changer transitions 0/277 dead transitions. [2024-10-13 10:04:20,279 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 206 places, 277 transitions, 855 flow [2024-10-13 10:04:20,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 10:04:20,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 10:04:20,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1070 transitions. [2024-10-13 10:04:20,283 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8784893267651889 [2024-10-13 10:04:20,283 INFO L175 Difference]: Start difference. First operand has 201 places, 198 transitions, 443 flow. Second operand 6 states and 1070 transitions. [2024-10-13 10:04:20,283 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 206 places, 277 transitions, 855 flow [2024-10-13 10:04:20,287 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 206 places, 277 transitions, 855 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-13 10:04:20,291 INFO L231 Difference]: Finished difference. Result has 211 places, 251 transitions, 801 flow [2024-10-13 10:04:20,291 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=203, PETRI_DIFFERENCE_MINUEND_FLOW=443, PETRI_DIFFERENCE_MINUEND_PLACES=201, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=198, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=180, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=801, PETRI_PLACES=211, PETRI_TRANSITIONS=251} [2024-10-13 10:04:20,292 INFO L277 CegarLoopForPetriNet]: 204 programPoint places, 7 predicate places. [2024-10-13 10:04:20,292 INFO L471 AbstractCegarLoop]: Abstraction has has 211 places, 251 transitions, 801 flow [2024-10-13 10:04:20,293 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 159.5) internal successors, (957), 6 states have internal predecessors, (957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:04:20,293 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 10:04:20,293 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 10:04:20,293 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-13 10:04:20,294 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-13 10:04:20,294 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 10:04:20,294 INFO L85 PathProgramCache]: Analyzing trace with hash -766545668, now seen corresponding path program 1 times [2024-10-13 10:04:20,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 10:04:20,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265959856] [2024-10-13 10:04:20,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 10:04:20,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 10:04:20,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 10:04:20,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 10:04:20,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 10:04:20,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265959856] [2024-10-13 10:04:20,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [265959856] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 10:04:20,515 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 10:04:20,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 10:04:20,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353297956] [2024-10-13 10:04:20,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 10:04:20,516 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 10:04:20,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 10:04:20,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 10:04:20,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-13 10:04:20,610 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 177 out of 203 [2024-10-13 10:04:20,611 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 211 places, 251 transitions, 801 flow. Second operand has 5 states, 5 states have (on average 178.4) internal successors, (892), 5 states have internal predecessors, (892), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:04:20,611 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 10:04:20,612 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 177 of 203 [2024-10-13 10:04:20,612 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 10:04:24,637 INFO L124 PetriNetUnfolderBase]: 10026/35624 cut-off events. [2024-10-13 10:04:24,638 INFO L125 PetriNetUnfolderBase]: For 4962/6490 co-relation queries the response was YES. [2024-10-13 10:04:24,980 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59446 conditions, 35624 events. 10026/35624 cut-off events. For 4962/6490 co-relation queries the response was YES. Maximal size of possible extension queue 824. Compared 439527 event pairs, 5453 based on Foata normal form. 1/32402 useless extension candidates. Maximal degree in co-relation 28968. Up to 12805 conditions per place. [2024-10-13 10:04:25,105 INFO L140 encePairwiseOnDemand]: 195/203 looper letters, 24 selfloop transitions, 2 changer transitions 5/259 dead transitions. [2024-10-13 10:04:25,105 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 216 places, 259 transitions, 879 flow [2024-10-13 10:04:25,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 10:04:25,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 10:04:25,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1094 transitions. [2024-10-13 10:04:25,108 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8981937602627258 [2024-10-13 10:04:25,108 INFO L175 Difference]: Start difference. First operand has 211 places, 251 transitions, 801 flow. Second operand 6 states and 1094 transitions. [2024-10-13 10:04:25,108 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 216 places, 259 transitions, 879 flow [2024-10-13 10:04:25,146 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 216 places, 259 transitions, 879 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-13 10:04:25,149 INFO L231 Difference]: Finished difference. Result has 220 places, 252 transitions, 823 flow [2024-10-13 10:04:25,150 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=203, PETRI_DIFFERENCE_MINUEND_FLOW=801, PETRI_DIFFERENCE_MINUEND_PLACES=211, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=251, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=249, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=823, PETRI_PLACES=220, PETRI_TRANSITIONS=252} [2024-10-13 10:04:25,151 INFO L277 CegarLoopForPetriNet]: 204 programPoint places, 16 predicate places. [2024-10-13 10:04:25,151 INFO L471 AbstractCegarLoop]: Abstraction has has 220 places, 252 transitions, 823 flow [2024-10-13 10:04:25,151 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 178.4) internal successors, (892), 5 states have internal predecessors, (892), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:04:25,151 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 10:04:25,152 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 10:04:25,152 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-10-13 10:04:25,152 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-13 10:04:25,152 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 10:04:25,153 INFO L85 PathProgramCache]: Analyzing trace with hash -811327886, now seen corresponding path program 1 times [2024-10-13 10:04:25,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 10:04:25,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060068652] [2024-10-13 10:04:25,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 10:04:25,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 10:04:25,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 10:04:25,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 10:04:25,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 10:04:25,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060068652] [2024-10-13 10:04:25,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060068652] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 10:04:25,179 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 10:04:25,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 10:04:25,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669136284] [2024-10-13 10:04:25,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 10:04:25,180 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 10:04:25,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 10:04:25,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 10:04:25,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 10:04:25,211 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 203 [2024-10-13 10:04:25,211 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 220 places, 252 transitions, 823 flow. Second operand has 3 states, 3 states have (on average 168.33333333333334) internal successors, (505), 3 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:04:25,212 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 10:04:25,212 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 203 [2024-10-13 10:04:25,212 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 10:04:34,144 INFO L124 PetriNetUnfolderBase]: 21181/70234 cut-off events. [2024-10-13 10:04:34,144 INFO L125 PetriNetUnfolderBase]: For 17920/24465 co-relation queries the response was YES. [2024-10-13 10:04:34,600 INFO L83 FinitePrefix]: Finished finitePrefix Result has 129758 conditions, 70234 events. 21181/70234 cut-off events. For 17920/24465 co-relation queries the response was YES. Maximal size of possible extension queue 2426. Compared 992510 event pairs, 6604 based on Foata normal form. 14/64072 useless extension candidates. Maximal degree in co-relation 129658. Up to 23127 conditions per place. [2024-10-13 10:04:34,903 INFO L140 encePairwiseOnDemand]: 182/203 looper letters, 44 selfloop transitions, 15 changer transitions 0/278 dead transitions. [2024-10-13 10:04:34,903 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 219 places, 278 transitions, 1014 flow [2024-10-13 10:04:34,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 10:04:34,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 10:04:34,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 566 transitions. [2024-10-13 10:04:34,905 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9293924466338259 [2024-10-13 10:04:34,905 INFO L175 Difference]: Start difference. First operand has 220 places, 252 transitions, 823 flow. Second operand 3 states and 566 transitions. [2024-10-13 10:04:34,905 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 219 places, 278 transitions, 1014 flow [2024-10-13 10:04:35,702 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 215 places, 278 transitions, 1002 flow, removed 5 selfloop flow, removed 4 redundant places. [2024-10-13 10:04:35,705 INFO L231 Difference]: Finished difference. Result has 217 places, 267 transitions, 943 flow [2024-10-13 10:04:35,705 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=203, PETRI_DIFFERENCE_MINUEND_FLOW=811, PETRI_DIFFERENCE_MINUEND_PLACES=213, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=252, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=237, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=943, PETRI_PLACES=217, PETRI_TRANSITIONS=267} [2024-10-13 10:04:35,705 INFO L277 CegarLoopForPetriNet]: 204 programPoint places, 13 predicate places. [2024-10-13 10:04:35,705 INFO L471 AbstractCegarLoop]: Abstraction has has 217 places, 267 transitions, 943 flow [2024-10-13 10:04:35,706 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 168.33333333333334) internal successors, (505), 3 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:04:35,706 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 10:04:35,706 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 10:04:35,706 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-10-13 10:04:35,706 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting threadErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-13 10:04:35,706 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 10:04:35,706 INFO L85 PathProgramCache]: Analyzing trace with hash -993790377, now seen corresponding path program 1 times [2024-10-13 10:04:35,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 10:04:35,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429488845] [2024-10-13 10:04:35,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 10:04:35,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 10:04:35,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 10:04:35,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 10:04:35,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 10:04:35,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429488845] [2024-10-13 10:04:35,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1429488845] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 10:04:35,733 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 10:04:35,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 10:04:35,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549709452] [2024-10-13 10:04:35,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 10:04:35,734 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 10:04:35,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 10:04:35,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 10:04:35,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 10:04:35,776 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 175 out of 203 [2024-10-13 10:04:35,777 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 217 places, 267 transitions, 943 flow. Second operand has 3 states, 3 states have (on average 177.33333333333334) internal successors, (532), 3 states have internal predecessors, (532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 10:04:35,777 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 10:04:35,777 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 175 of 203 [2024-10-13 10:04:35,777 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand