./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_11-ptr_racing.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 803cd42f 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 ../sv-benchmarks/c/goblint-regression/28-race_reach_11-ptr_racing.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 265daba2b5ad7b4578f16c23ab641f7a5441c3a3894a2482737cba7b750ee6df --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 17:52:31,093 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 17:52:31,165 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-22 17:52:31,172 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 17:52:31,172 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 17:52:31,197 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 17:52:31,198 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 17:52:31,198 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 17:52:31,199 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 17:52:31,204 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 17:52:31,205 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 17:52:31,205 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 17:52:31,205 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 17:52:31,206 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 17:52:31,206 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 17:52:31,206 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 17:52:31,207 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 17:52:31,207 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 17:52:31,208 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 17:52:31,209 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 17:52:31,209 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 17:52:31,213 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 17:52:31,214 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-22 17:52:31,214 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 17:52:31,214 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-22 17:52:31,214 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 17:52:31,215 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 17:52:31,215 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 17:52:31,215 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 17:52:31,215 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 17:52:31,216 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 17:52:31,216 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 17:52:31,216 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 17:52:31,217 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 17:52:31,217 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 17:52:31,217 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 17:52:31,217 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 17:52:31,218 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 17:52:31,218 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 17:52:31,218 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 17:52:31,218 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 17:52:31,219 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 265daba2b5ad7b4578f16c23ab641f7a5441c3a3894a2482737cba7b750ee6df [2024-11-22 17:52:31,520 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 17:52:31,546 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 17:52:31,550 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 17:52:31,551 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 17:52:31,552 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 17:52:31,553 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_11-ptr_racing.i [2024-11-22 17:52:33,002 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 17:52:33,261 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 17:52:33,261 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_11-ptr_racing.i [2024-11-22 17:52:33,283 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/690061296/1995f95d111440d29c862eb2c0d3dffc/FLAG81642e68a [2024-11-22 17:52:33,598 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/690061296/1995f95d111440d29c862eb2c0d3dffc [2024-11-22 17:52:33,600 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 17:52:33,602 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 17:52:33,603 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 17:52:33,603 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 17:52:33,609 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 17:52:33,610 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 05:52:33" (1/1) ... [2024-11-22 17:52:33,611 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@970d356 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:52:33, skipping insertion in model container [2024-11-22 17:52:33,613 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 05:52:33" (1/1) ... [2024-11-22 17:52:33,661 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 17:52:34,064 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 17:52:34,094 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 17:52:34,148 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 17:52:34,205 INFO L204 MainTranslator]: Completed translation [2024-11-22 17:52:34,206 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:52:34 WrapperNode [2024-11-22 17:52:34,206 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 17:52:34,207 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 17:52:34,207 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 17:52:34,207 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 17:52:34,213 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:52:34" (1/1) ... [2024-11-22 17:52:34,237 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:52:34" (1/1) ... [2024-11-22 17:52:34,267 INFO L138 Inliner]: procedures = 171, calls = 49, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 105 [2024-11-22 17:52:34,267 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 17:52:34,268 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 17:52:34,268 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 17:52:34,268 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 17:52:34,279 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:52:34" (1/1) ... [2024-11-22 17:52:34,279 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:52:34" (1/1) ... [2024-11-22 17:52:34,283 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:52:34" (1/1) ... [2024-11-22 17:52:34,283 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:52:34" (1/1) ... [2024-11-22 17:52:34,296 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:52:34" (1/1) ... [2024-11-22 17:52:34,300 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:52:34" (1/1) ... [2024-11-22 17:52:34,302 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:52:34" (1/1) ... [2024-11-22 17:52:34,304 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:52:34" (1/1) ... [2024-11-22 17:52:34,307 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 17:52:34,308 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 17:52:34,308 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 17:52:34,309 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 17:52:34,309 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:52:34" (1/1) ... [2024-11-22 17:52:34,321 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 17:52:34,334 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 17:52:34,358 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) [2024-11-22 17:52:34,361 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 [2024-11-22 17:52:34,415 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-22 17:52:34,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-22 17:52:34,416 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-22 17:52:34,416 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 17:52:34,416 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-22 17:52:34,416 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-22 17:52:34,417 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-22 17:52:34,417 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-22 17:52:34,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-22 17:52:34,417 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-22 17:52:34,417 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 17:52:34,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 17:52:34,419 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-22 17:52:34,603 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 17:52:34,606 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 17:52:35,038 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-22 17:52:35,038 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 17:52:35,083 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 17:52:35,084 INFO L316 CfgBuilder]: Removed 10 assume(true) statements. [2024-11-22 17:52:35,084 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 05:52:35 BoogieIcfgContainer [2024-11-22 17:52:35,085 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 17:52:35,087 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 17:52:35,087 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 17:52:35,090 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 17:52:35,091 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 05:52:33" (1/3) ... [2024-11-22 17:52:35,092 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f1e8c7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 05:52:35, skipping insertion in model container [2024-11-22 17:52:35,092 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 05:52:34" (2/3) ... [2024-11-22 17:52:35,092 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f1e8c7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 05:52:35, skipping insertion in model container [2024-11-22 17:52:35,093 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 05:52:35" (3/3) ... [2024-11-22 17:52:35,094 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_11-ptr_racing.i [2024-11-22 17:52:35,109 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 17:52:35,110 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2024-11-22 17:52:35,110 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-22 17:52:35,206 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-22 17:52:35,257 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 161 places, 171 transitions, 349 flow [2024-11-22 17:52:35,359 INFO L124 PetriNetUnfolderBase]: 19/235 cut-off events. [2024-11-22 17:52:35,359 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-22 17:52:35,369 INFO L83 FinitePrefix]: Finished finitePrefix Result has 240 conditions, 235 events. 19/235 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 713 event pairs, 0 based on Foata normal form. 0/203 useless extension candidates. Maximal degree in co-relation 131. Up to 4 conditions per place. [2024-11-22 17:52:35,369 INFO L82 GeneralOperation]: Start removeDead. Operand has 161 places, 171 transitions, 349 flow [2024-11-22 17:52:35,377 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 161 places, 171 transitions, 349 flow [2024-11-22 17:52:35,391 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 17:52:35,399 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;@421ad439, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 17:52:35,400 INFO L334 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2024-11-22 17:52:35,417 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-22 17:52:35,418 INFO L124 PetriNetUnfolderBase]: 2/60 cut-off events. [2024-11-22 17:52:35,418 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-22 17:52:35,418 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:52:35,419 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] [2024-11-22 17:52:35,420 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-22 17:52:35,425 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:52:35,426 INFO L85 PathProgramCache]: Analyzing trace with hash 467652431, now seen corresponding path program 1 times [2024-11-22 17:52:35,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:52:35,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036640474] [2024-11-22 17:52:35,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:52:35,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:52:35,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:52:36,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:52:36,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:52:36,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036640474] [2024-11-22 17:52:36,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2036640474] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:52:36,353 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:52:36,354 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 17:52:36,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414694275] [2024-11-22 17:52:36,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:52:36,365 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 17:52:36,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:52:36,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 17:52:36,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-22 17:52:36,765 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 171 [2024-11-22 17:52:36,771 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 171 transitions, 349 flow. Second operand has 6 states, 6 states have (on average 109.5) internal successors, (657), 6 states have internal predecessors, (657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:52:36,771 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:52:36,772 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 171 [2024-11-22 17:52:36,773 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:52:37,414 INFO L124 PetriNetUnfolderBase]: 579/2152 cut-off events. [2024-11-22 17:52:37,414 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-22 17:52:37,422 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3410 conditions, 2152 events. 579/2152 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 15013 event pairs, 372 based on Foata normal form. 224/2225 useless extension candidates. Maximal degree in co-relation 3262. Up to 1080 conditions per place. [2024-11-22 17:52:37,436 INFO L140 encePairwiseOnDemand]: 136/171 looper letters, 73 selfloop transitions, 70 changer transitions 0/250 dead transitions. [2024-11-22 17:52:37,437 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 250 transitions, 793 flow [2024-11-22 17:52:37,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 17:52:37,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-22 17:52:37,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 828 transitions. [2024-11-22 17:52:37,458 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8070175438596491 [2024-11-22 17:52:37,460 INFO L175 Difference]: Start difference. First operand has 161 places, 171 transitions, 349 flow. Second operand 6 states and 828 transitions. [2024-11-22 17:52:37,461 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 164 places, 250 transitions, 793 flow [2024-11-22 17:52:37,466 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 164 places, 250 transitions, 793 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-22 17:52:37,473 INFO L231 Difference]: Finished difference. Result has 169 places, 226 transitions, 783 flow [2024-11-22 17:52:37,475 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=321, PETRI_DIFFERENCE_MINUEND_PLACES=159, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=157, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=783, PETRI_PLACES=169, PETRI_TRANSITIONS=226} [2024-11-22 17:52:37,479 INFO L277 CegarLoopForPetriNet]: 161 programPoint places, 8 predicate places. [2024-11-22 17:52:37,480 INFO L471 AbstractCegarLoop]: Abstraction has has 169 places, 226 transitions, 783 flow [2024-11-22 17:52:37,480 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 109.5) internal successors, (657), 6 states have internal predecessors, (657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:52:37,480 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:52:37,481 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] [2024-11-22 17:52:37,481 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-22 17:52:37,481 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-22 17:52:37,482 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:52:37,482 INFO L85 PathProgramCache]: Analyzing trace with hash -1570351445, now seen corresponding path program 1 times [2024-11-22 17:52:37,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:52:37,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671571892] [2024-11-22 17:52:37,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:52:37,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:52:37,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:52:37,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:52:37,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:52:37,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671571892] [2024-11-22 17:52:37,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1671571892] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:52:37,560 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:52:37,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 17:52:37,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989470584] [2024-11-22 17:52:37,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:52:37,562 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 17:52:37,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:52:37,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 17:52:37,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 17:52:37,584 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 140 out of 171 [2024-11-22 17:52:37,585 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 169 places, 226 transitions, 783 flow. Second operand has 3 states, 3 states have (on average 142.0) internal successors, (426), 3 states have internal predecessors, (426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:52:37,585 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:52:37,585 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 140 of 171 [2024-11-22 17:52:37,585 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:52:37,757 INFO L124 PetriNetUnfolderBase]: 188/1063 cut-off events. [2024-11-22 17:52:37,757 INFO L125 PetriNetUnfolderBase]: For 119/133 co-relation queries the response was YES. [2024-11-22 17:52:37,761 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1750 conditions, 1063 events. 188/1063 cut-off events. For 119/133 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 6099 event pairs, 28 based on Foata normal form. 1/992 useless extension candidates. Maximal degree in co-relation 1641. Up to 191 conditions per place. [2024-11-22 17:52:37,765 INFO L140 encePairwiseOnDemand]: 168/171 looper letters, 22 selfloop transitions, 3 changer transitions 0/232 dead transitions. [2024-11-22 17:52:37,765 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 171 places, 232 transitions, 845 flow [2024-11-22 17:52:37,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 17:52:37,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 17:52:37,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 445 transitions. [2024-11-22 17:52:37,767 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8674463937621832 [2024-11-22 17:52:37,767 INFO L175 Difference]: Start difference. First operand has 169 places, 226 transitions, 783 flow. Second operand 3 states and 445 transitions. [2024-11-22 17:52:37,767 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 171 places, 232 transitions, 845 flow [2024-11-22 17:52:37,776 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 171 places, 232 transitions, 845 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-22 17:52:37,782 INFO L231 Difference]: Finished difference. Result has 172 places, 226 transitions, 794 flow [2024-11-22 17:52:37,782 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=783, PETRI_DIFFERENCE_MINUEND_PLACES=169, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=226, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=223, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=794, PETRI_PLACES=172, PETRI_TRANSITIONS=226} [2024-11-22 17:52:37,783 INFO L277 CegarLoopForPetriNet]: 161 programPoint places, 11 predicate places. [2024-11-22 17:52:37,783 INFO L471 AbstractCegarLoop]: Abstraction has has 172 places, 226 transitions, 794 flow [2024-11-22 17:52:37,784 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 142.0) internal successors, (426), 3 states have internal predecessors, (426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:52:37,784 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:52:37,784 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] [2024-11-22 17:52:37,784 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 17:52:37,784 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-22 17:52:37,785 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:52:37,785 INFO L85 PathProgramCache]: Analyzing trace with hash 1630556509, now seen corresponding path program 1 times [2024-11-22 17:52:37,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:52:37,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986444792] [2024-11-22 17:52:37,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:52:37,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:52:37,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:52:38,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:52:38,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:52:38,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986444792] [2024-11-22 17:52:38,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986444792] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:52:38,185 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:52:38,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 17:52:38,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313987391] [2024-11-22 17:52:38,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:52:38,186 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 17:52:38,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:52:38,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 17:52:38,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-22 17:52:38,430 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 171 [2024-11-22 17:52:38,431 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 172 places, 226 transitions, 794 flow. Second operand has 6 states, 6 states have (on average 121.16666666666667) internal successors, (727), 6 states have internal predecessors, (727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:52:38,431 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:52:38,432 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 171 [2024-11-22 17:52:38,432 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:52:38,769 INFO L124 PetriNetUnfolderBase]: 370/1574 cut-off events. [2024-11-22 17:52:38,769 INFO L125 PetriNetUnfolderBase]: For 473/492 co-relation queries the response was YES. [2024-11-22 17:52:38,773 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3252 conditions, 1574 events. 370/1574 cut-off events. For 473/492 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 10718 event pairs, 96 based on Foata normal form. 2/1519 useless extension candidates. Maximal degree in co-relation 3131. Up to 642 conditions per place. [2024-11-22 17:52:38,779 INFO L140 encePairwiseOnDemand]: 153/171 looper letters, 112 selfloop transitions, 53 changer transitions 0/285 dead transitions. [2024-11-22 17:52:38,779 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 177 places, 285 transitions, 1366 flow [2024-11-22 17:52:38,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 17:52:38,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-22 17:52:38,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 797 transitions. [2024-11-22 17:52:38,782 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.776803118908382 [2024-11-22 17:52:38,782 INFO L175 Difference]: Start difference. First operand has 172 places, 226 transitions, 794 flow. Second operand 6 states and 797 transitions. [2024-11-22 17:52:38,782 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 177 places, 285 transitions, 1366 flow [2024-11-22 17:52:38,787 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 175 places, 285 transitions, 1360 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 17:52:38,791 INFO L231 Difference]: Finished difference. Result has 180 places, 269 transitions, 1276 flow [2024-11-22 17:52:38,791 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=788, PETRI_DIFFERENCE_MINUEND_PLACES=170, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=226, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=185, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1276, PETRI_PLACES=180, PETRI_TRANSITIONS=269} [2024-11-22 17:52:38,792 INFO L277 CegarLoopForPetriNet]: 161 programPoint places, 19 predicate places. [2024-11-22 17:52:38,792 INFO L471 AbstractCegarLoop]: Abstraction has has 180 places, 269 transitions, 1276 flow [2024-11-22 17:52:38,793 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 121.16666666666667) internal successors, (727), 6 states have internal predecessors, (727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:52:38,793 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:52:38,793 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] [2024-11-22 17:52:38,793 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 17:52:38,793 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-22 17:52:38,794 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:52:38,794 INFO L85 PathProgramCache]: Analyzing trace with hash 794013781, now seen corresponding path program 1 times [2024-11-22 17:52:38,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:52:38,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135567550] [2024-11-22 17:52:38,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:52:38,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:52:38,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 17:52:38,817 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-22 17:52:38,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 17:52:38,871 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-22 17:52:38,872 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-22 17:52:38,873 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 12 remaining) [2024-11-22 17:52:38,878 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (10 of 12 remaining) [2024-11-22 17:52:38,878 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (9 of 12 remaining) [2024-11-22 17:52:38,879 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (8 of 12 remaining) [2024-11-22 17:52:38,879 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 12 remaining) [2024-11-22 17:52:38,879 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (6 of 12 remaining) [2024-11-22 17:52:38,879 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (5 of 12 remaining) [2024-11-22 17:52:38,879 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 12 remaining) [2024-11-22 17:52:38,879 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 12 remaining) [2024-11-22 17:52:38,880 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (2 of 12 remaining) [2024-11-22 17:52:38,880 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 12 remaining) [2024-11-22 17:52:38,880 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 12 remaining) [2024-11-22 17:52:38,881 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 17:52:38,882 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-22 17:52:38,885 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-22 17:52:38,889 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-22 17:52:38,929 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-22 17:52:38,933 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 222 places, 237 transitions, 490 flow [2024-11-22 17:52:38,977 INFO L124 PetriNetUnfolderBase]: 34/393 cut-off events. [2024-11-22 17:52:38,978 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-22 17:52:38,982 INFO L83 FinitePrefix]: Finished finitePrefix Result has 405 conditions, 393 events. 34/393 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1497 event pairs, 0 based on Foata normal form. 0/337 useless extension candidates. Maximal degree in co-relation 237. Up to 8 conditions per place. [2024-11-22 17:52:38,982 INFO L82 GeneralOperation]: Start removeDead. Operand has 222 places, 237 transitions, 490 flow [2024-11-22 17:52:38,987 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 222 places, 237 transitions, 490 flow [2024-11-22 17:52:38,988 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 17:52:38,988 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;@421ad439, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 17:52:38,988 INFO L334 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2024-11-22 17:52:38,999 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-22 17:52:38,999 INFO L124 PetriNetUnfolderBase]: 2/60 cut-off events. [2024-11-22 17:52:38,999 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-22 17:52:38,999 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:52:38,999 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] [2024-11-22 17:52:39,000 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-22 17:52:39,000 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:52:39,000 INFO L85 PathProgramCache]: Analyzing trace with hash -83295473, now seen corresponding path program 1 times [2024-11-22 17:52:39,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:52:39,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607191705] [2024-11-22 17:52:39,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:52:39,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:52:39,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:52:39,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:52:39,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:52:39,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607191705] [2024-11-22 17:52:39,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1607191705] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:52:39,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:52:39,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 17:52:39,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082084374] [2024-11-22 17:52:39,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:52:39,358 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 17:52:39,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:52:39,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 17:52:39,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-22 17:52:39,631 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 237 [2024-11-22 17:52:39,632 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 222 places, 237 transitions, 490 flow. Second operand has 6 states, 6 states have (on average 145.5) internal successors, (873), 6 states have internal predecessors, (873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:52:39,632 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:52:39,633 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 237 [2024-11-22 17:52:39,633 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:52:47,820 INFO L124 PetriNetUnfolderBase]: 29151/68521 cut-off events. [2024-11-22 17:52:47,821 INFO L125 PetriNetUnfolderBase]: For 733/733 co-relation queries the response was YES. [2024-11-22 17:52:47,965 INFO L83 FinitePrefix]: Finished finitePrefix Result has 114057 conditions, 68521 events. 29151/68521 cut-off events. For 733/733 co-relation queries the response was YES. Maximal size of possible extension queue 1181. Compared 763548 event pairs, 20503 based on Foata normal form. 8143/72555 useless extension candidates. Maximal degree in co-relation 101006. Up to 40549 conditions per place. [2024-11-22 17:52:48,268 INFO L140 encePairwiseOnDemand]: 180/237 looper letters, 122 selfloop transitions, 134 changer transitions 0/399 dead transitions. [2024-11-22 17:52:48,268 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 225 places, 399 transitions, 1331 flow [2024-11-22 17:52:48,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 17:52:48,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-22 17:52:48,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1187 transitions. [2024-11-22 17:52:48,274 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8347398030942335 [2024-11-22 17:52:48,274 INFO L175 Difference]: Start difference. First operand has 222 places, 237 transitions, 490 flow. Second operand 6 states and 1187 transitions. [2024-11-22 17:52:48,274 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 225 places, 399 transitions, 1331 flow [2024-11-22 17:52:48,285 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 225 places, 399 transitions, 1331 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-22 17:52:48,291 INFO L231 Difference]: Finished difference. Result has 230 places, 350 transitions, 1328 flow [2024-11-22 17:52:48,293 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=450, PETRI_DIFFERENCE_MINUEND_PLACES=220, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=217, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=179, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1328, PETRI_PLACES=230, PETRI_TRANSITIONS=350} [2024-11-22 17:52:48,294 INFO L277 CegarLoopForPetriNet]: 222 programPoint places, 8 predicate places. [2024-11-22 17:52:48,295 INFO L471 AbstractCegarLoop]: Abstraction has has 230 places, 350 transitions, 1328 flow [2024-11-22 17:52:48,296 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 145.5) internal successors, (873), 6 states have internal predecessors, (873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:52:48,296 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:52:48,296 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] [2024-11-22 17:52:48,296 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 17:52:48,297 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-22 17:52:48,298 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:52:48,298 INFO L85 PathProgramCache]: Analyzing trace with hash 1544665099, now seen corresponding path program 1 times [2024-11-22 17:52:48,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:52:48,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815934821] [2024-11-22 17:52:48,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:52:48,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:52:48,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:52:48,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:52:48,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:52:48,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815934821] [2024-11-22 17:52:48,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [815934821] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:52:48,365 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:52:48,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 17:52:48,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329113154] [2024-11-22 17:52:48,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:52:48,365 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 17:52:48,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:52:48,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 17:52:48,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 17:52:48,403 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 192 out of 237 [2024-11-22 17:52:48,407 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 230 places, 350 transitions, 1328 flow. Second operand has 3 states, 3 states have (on average 194.0) internal successors, (582), 3 states have internal predecessors, (582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:52:48,408 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:52:48,408 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 192 of 237 [2024-11-22 17:52:48,408 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:52:51,679 INFO L124 PetriNetUnfolderBase]: 9834/30958 cut-off events. [2024-11-22 17:52:51,679 INFO L125 PetriNetUnfolderBase]: For 5174/5550 co-relation queries the response was YES. [2024-11-22 17:52:51,774 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55394 conditions, 30958 events. 9834/30958 cut-off events. For 5174/5550 co-relation queries the response was YES. Maximal size of possible extension queue 600. Compared 350060 event pairs, 3863 based on Foata normal form. 1/28435 useless extension candidates. Maximal degree in co-relation 49398. Up to 9284 conditions per place. [2024-11-22 17:52:51,899 INFO L140 encePairwiseOnDemand]: 234/237 looper letters, 32 selfloop transitions, 3 changer transitions 0/358 dead transitions. [2024-11-22 17:52:51,899 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 232 places, 358 transitions, 1420 flow [2024-11-22 17:52:51,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 17:52:51,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 17:52:51,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 610 transitions. [2024-11-22 17:52:51,901 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8579465541490858 [2024-11-22 17:52:51,901 INFO L175 Difference]: Start difference. First operand has 230 places, 350 transitions, 1328 flow. Second operand 3 states and 610 transitions. [2024-11-22 17:52:51,901 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 232 places, 358 transitions, 1420 flow [2024-11-22 17:52:52,040 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 232 places, 358 transitions, 1420 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-22 17:52:52,297 INFO L231 Difference]: Finished difference. Result has 233 places, 352 transitions, 1353 flow [2024-11-22 17:52:52,298 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=1328, PETRI_DIFFERENCE_MINUEND_PLACES=230, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=350, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=347, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1353, PETRI_PLACES=233, PETRI_TRANSITIONS=352} [2024-11-22 17:52:52,299 INFO L277 CegarLoopForPetriNet]: 222 programPoint places, 11 predicate places. [2024-11-22 17:52:52,299 INFO L471 AbstractCegarLoop]: Abstraction has has 233 places, 352 transitions, 1353 flow [2024-11-22 17:52:52,303 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 194.0) internal successors, (582), 3 states have internal predecessors, (582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:52:52,304 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:52:52,304 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] [2024-11-22 17:52:52,304 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 17:52:52,305 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-22 17:52:52,305 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:52:52,309 INFO L85 PathProgramCache]: Analyzing trace with hash -1452137411, now seen corresponding path program 1 times [2024-11-22 17:52:52,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:52:52,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374970986] [2024-11-22 17:52:52,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:52:52,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:52:52,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:52:52,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:52:52,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:52:52,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374970986] [2024-11-22 17:52:52,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [374970986] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:52:52,609 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:52:52,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 17:52:52,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96487080] [2024-11-22 17:52:52,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:52:52,611 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 17:52:52,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:52:52,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 17:52:52,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-22 17:52:52,988 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 237 [2024-11-22 17:52:52,990 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 233 places, 352 transitions, 1353 flow. Second operand has 6 states, 6 states have (on average 165.16666666666666) internal successors, (991), 6 states have internal predecessors, (991), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:52:52,990 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:52:52,990 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 237 [2024-11-22 17:52:52,990 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:52:58,936 INFO L124 PetriNetUnfolderBase]: 21468/52051 cut-off events. [2024-11-22 17:52:58,936 INFO L125 PetriNetUnfolderBase]: For 19115/20486 co-relation queries the response was YES. [2024-11-22 17:52:59,128 INFO L83 FinitePrefix]: Finished finitePrefix Result has 116664 conditions, 52051 events. 21468/52051 cut-off events. For 19115/20486 co-relation queries the response was YES. Maximal size of possible extension queue 1027. Compared 574105 event pairs, 8210 based on Foata normal form. 38/49382 useless extension candidates. Maximal degree in co-relation 116492. Up to 25409 conditions per place. [2024-11-22 17:52:59,651 INFO L140 encePairwiseOnDemand]: 211/237 looper letters, 192 selfloop transitions, 141 changer transitions 0/531 dead transitions. [2024-11-22 17:52:59,651 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 238 places, 531 transitions, 2821 flow [2024-11-22 17:52:59,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 17:52:59,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-22 17:52:59,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1141 transitions. [2024-11-22 17:52:59,655 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8023909985935302 [2024-11-22 17:52:59,655 INFO L175 Difference]: Start difference. First operand has 233 places, 352 transitions, 1353 flow. Second operand 6 states and 1141 transitions. [2024-11-22 17:52:59,655 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 238 places, 531 transitions, 2821 flow [2024-11-22 17:52:59,863 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 237 places, 531 transitions, 2818 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-22 17:52:59,871 INFO L231 Difference]: Finished difference. Result has 242 places, 483 transitions, 2734 flow [2024-11-22 17:52:59,873 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=1350, PETRI_DIFFERENCE_MINUEND_PLACES=232, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=352, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=271, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2734, PETRI_PLACES=242, PETRI_TRANSITIONS=483} [2024-11-22 17:52:59,874 INFO L277 CegarLoopForPetriNet]: 222 programPoint places, 20 predicate places. [2024-11-22 17:52:59,874 INFO L471 AbstractCegarLoop]: Abstraction has has 242 places, 483 transitions, 2734 flow [2024-11-22 17:52:59,876 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 165.16666666666666) internal successors, (991), 6 states have internal predecessors, (991), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:52:59,876 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:52:59,876 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] [2024-11-22 17:52:59,876 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 17:52:59,876 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-22 17:52:59,877 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:52:59,877 INFO L85 PathProgramCache]: Analyzing trace with hash -109579940, now seen corresponding path program 1 times [2024-11-22 17:52:59,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:52:59,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619187304] [2024-11-22 17:52:59,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:52:59,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:52:59,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:52:59,962 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:52:59,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:52:59,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619187304] [2024-11-22 17:52:59,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [619187304] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 17:52:59,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1018781207] [2024-11-22 17:52:59,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:52:59,963 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 17:52:59,964 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 17:52:59,966 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 17:52:59,971 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-22 17:53:00,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:53:00,064 INFO L255 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-22 17:53:00,066 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 17:53:00,140 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:53:00,141 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 17:53:00,201 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:53:00,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1018781207] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 17:53:00,201 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 17:53:00,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-22 17:53:00,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694997904] [2024-11-22 17:53:00,202 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 17:53:00,206 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-22 17:53:00,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:53:00,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-22 17:53:00,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-22 17:53:00,300 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 189 out of 237 [2024-11-22 17:53:00,303 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 242 places, 483 transitions, 2734 flow. Second operand has 10 states, 10 states have (on average 191.3) internal successors, (1913), 10 states have internal predecessors, (1913), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:53:00,303 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:53:00,303 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 189 of 237 [2024-11-22 17:53:00,303 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:53:04,542 INFO L124 PetriNetUnfolderBase]: 12751/34552 cut-off events. [2024-11-22 17:53:04,543 INFO L125 PetriNetUnfolderBase]: For 23626/25136 co-relation queries the response was YES. [2024-11-22 17:53:04,652 INFO L83 FinitePrefix]: Finished finitePrefix Result has 85420 conditions, 34552 events. 12751/34552 cut-off events. For 23626/25136 co-relation queries the response was YES. Maximal size of possible extension queue 603. Compared 364597 event pairs, 2011 based on Foata normal form. 197/33131 useless extension candidates. Maximal degree in co-relation 35054. Up to 13493 conditions per place. [2024-11-22 17:53:04,809 INFO L140 encePairwiseOnDemand]: 232/237 looper letters, 72 selfloop transitions, 9 changer transitions 0/491 dead transitions. [2024-11-22 17:53:04,809 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 202 places, 491 transitions, 2904 flow [2024-11-22 17:53:04,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 17:53:04,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-22 17:53:04,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1782 transitions. [2024-11-22 17:53:04,817 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8354430379746836 [2024-11-22 17:53:04,817 INFO L175 Difference]: Start difference. First operand has 242 places, 483 transitions, 2734 flow. Second operand 9 states and 1782 transitions. [2024-11-22 17:53:04,817 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 202 places, 491 transitions, 2904 flow [2024-11-22 17:53:05,041 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 202 places, 491 transitions, 2886 flow, removed 9 selfloop flow, removed 0 redundant places. [2024-11-22 17:53:05,049 INFO L231 Difference]: Finished difference. Result has 202 places, 435 transitions, 2630 flow [2024-11-22 17:53:05,050 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=2608, PETRI_DIFFERENCE_MINUEND_PLACES=194, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=433, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=426, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2630, PETRI_PLACES=202, PETRI_TRANSITIONS=435} [2024-11-22 17:53:05,050 INFO L277 CegarLoopForPetriNet]: 222 programPoint places, -20 predicate places. [2024-11-22 17:53:05,051 INFO L471 AbstractCegarLoop]: Abstraction has has 202 places, 435 transitions, 2630 flow [2024-11-22 17:53:05,052 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 191.3) internal successors, (1913), 10 states have internal predecessors, (1913), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:53:05,052 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:53:05,053 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] [2024-11-22 17:53:05,066 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-22 17:53:05,256 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 17:53:05,257 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-22 17:53:05,258 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:53:05,258 INFO L85 PathProgramCache]: Analyzing trace with hash -369686586, now seen corresponding path program 1 times [2024-11-22 17:53:05,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:53:05,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401081515] [2024-11-22 17:53:05,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:53:05,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:53:05,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:53:05,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 17:53:05,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:53:05,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401081515] [2024-11-22 17:53:05,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [401081515] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 17:53:05,628 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 17:53:05,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 17:53:05,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150845951] [2024-11-22 17:53:05,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 17:53:05,630 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 17:53:05,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:53:05,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 17:53:05,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-22 17:53:05,909 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 146 out of 237 [2024-11-22 17:53:05,910 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 202 places, 435 transitions, 2630 flow. Second operand has 6 states, 6 states have (on average 149.16666666666666) internal successors, (895), 6 states have internal predecessors, (895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:53:05,910 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:53:05,911 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 146 of 237 [2024-11-22 17:53:05,911 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:53:11,492 INFO L124 PetriNetUnfolderBase]: 19381/43330 cut-off events. [2024-11-22 17:53:11,493 INFO L125 PetriNetUnfolderBase]: For 43582/45766 co-relation queries the response was YES. [2024-11-22 17:53:11,666 INFO L83 FinitePrefix]: Finished finitePrefix Result has 129445 conditions, 43330 events. 19381/43330 cut-off events. For 43582/45766 co-relation queries the response was YES. Maximal size of possible extension queue 716. Compared 430540 event pairs, 5304 based on Foata normal form. 67/41642 useless extension candidates. Maximal degree in co-relation 112407. Up to 28116 conditions per place. [2024-11-22 17:53:11,804 INFO L140 encePairwiseOnDemand]: 210/237 looper letters, 338 selfloop transitions, 213 changer transitions 0/666 dead transitions. [2024-11-22 17:53:11,804 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 207 places, 666 transitions, 5074 flow [2024-11-22 17:53:11,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 17:53:11,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-22 17:53:11,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1048 transitions. [2024-11-22 17:53:11,807 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7369901547116737 [2024-11-22 17:53:11,807 INFO L175 Difference]: Start difference. First operand has 202 places, 435 transitions, 2630 flow. Second operand 6 states and 1048 transitions. [2024-11-22 17:53:11,807 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 207 places, 666 transitions, 5074 flow [2024-11-22 17:53:12,047 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 202 places, 666 transitions, 5051 flow, removed 2 selfloop flow, removed 5 redundant places. [2024-11-22 17:53:12,056 INFO L231 Difference]: Finished difference. Result has 207 places, 638 transitions, 4917 flow [2024-11-22 17:53:12,057 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=2607, PETRI_DIFFERENCE_MINUEND_PLACES=197, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=435, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=330, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=4917, PETRI_PLACES=207, PETRI_TRANSITIONS=638} [2024-11-22 17:53:12,058 INFO L277 CegarLoopForPetriNet]: 222 programPoint places, -15 predicate places. [2024-11-22 17:53:12,058 INFO L471 AbstractCegarLoop]: Abstraction has has 207 places, 638 transitions, 4917 flow [2024-11-22 17:53:12,059 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 149.16666666666666) internal successors, (895), 6 states have internal predecessors, (895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:53:12,059 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 17:53:12,059 INFO L204 CegarLoopForPetriNet]: trace histogram [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] [2024-11-22 17:53:12,059 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-22 17:53:12,059 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-22 17:53:12,060 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 17:53:12,060 INFO L85 PathProgramCache]: Analyzing trace with hash 34053723, now seen corresponding path program 1 times [2024-11-22 17:53:12,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 17:53:12,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346921339] [2024-11-22 17:53:12,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:53:12,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 17:53:12,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:53:12,595 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-22 17:53:12,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 17:53:12,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346921339] [2024-11-22 17:53:12,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1346921339] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 17:53:12,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [473028981] [2024-11-22 17:53:12,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 17:53:12,596 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 17:53:12,597 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 17:53:12,599 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 17:53:12,600 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-22 17:53:12,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 17:53:12,700 INFO L255 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-22 17:53:12,704 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 17:53:12,820 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-22 17:53:12,821 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-11-22 17:53:12,924 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-22 17:53:12,938 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2024-11-22 17:53:12,966 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-22 17:53:12,967 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 42 [2024-11-22 17:53:12,995 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-22 17:53:12,996 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 57 [2024-11-22 17:53:13,154 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 45 [2024-11-22 17:53:13,191 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-22 17:53:13,191 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 17:53:13,229 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (and (forall ((v_ArrVal_267 (Array Int Int))) (= |c_ULTIMATE.start_main_#t~nondet16#1| (select (select (store |c_#race| c_t_funThread1of2ForFork0_~p~0.base v_ArrVal_267) |c_ULTIMATE.start_main_~#t_ids~0#1.base|) (+ .cse0 |c_ULTIMATE.start_main_~#t_ids~0#1.offset| 1)))) (forall ((v_ArrVal_267 (Array Int Int))) (= (select (select (store |c_#race| c_t_funThread1of2ForFork0_~p~0.base v_ArrVal_267) |c_ULTIMATE.start_main_~#t_ids~0#1.base|) (+ .cse0 3 |c_ULTIMATE.start_main_~#t_ids~0#1.offset|)) |c_ULTIMATE.start_main_#t~nondet16#1|)) (forall ((v_ArrVal_267 (Array Int Int))) (= (select (select (store |c_#race| c_t_funThread1of2ForFork0_~p~0.base v_ArrVal_267) |c_ULTIMATE.start_main_~#t_ids~0#1.base|) (+ .cse0 |c_ULTIMATE.start_main_~#t_ids~0#1.offset|)) |c_ULTIMATE.start_main_#t~nondet16#1|)) (forall ((v_ArrVal_267 (Array Int Int))) (= |c_ULTIMATE.start_main_#t~nondet16#1| (select (select (store |c_#race| c_t_funThread1of2ForFork0_~p~0.base v_ArrVal_267) |c_ULTIMATE.start_main_~#t_ids~0#1.base|) (+ .cse0 2 |c_ULTIMATE.start_main_~#t_ids~0#1.offset|)))))) is different from false [2024-11-22 17:53:13,342 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (and (forall ((v_ArrVal_267 (Array Int Int))) (= |c_ULTIMATE.start_main_#t~nondet16#1| (select (select (store |c_#race| |c_~#global~0.base| v_ArrVal_267) |c_ULTIMATE.start_main_~#t_ids~0#1.base|) (+ .cse0 2 |c_ULTIMATE.start_main_~#t_ids~0#1.offset|)))) (forall ((v_ArrVal_267 (Array Int Int))) (= (select (select (store |c_#race| |c_~#global~0.base| v_ArrVal_267) |c_ULTIMATE.start_main_~#t_ids~0#1.base|) (+ .cse0 3 |c_ULTIMATE.start_main_~#t_ids~0#1.offset|)) |c_ULTIMATE.start_main_#t~nondet16#1|)) (forall ((v_ArrVal_267 (Array Int Int))) (= (select (select (store |c_#race| |c_~#global~0.base| v_ArrVal_267) |c_ULTIMATE.start_main_~#t_ids~0#1.base|) (+ .cse0 |c_ULTIMATE.start_main_~#t_ids~0#1.offset|)) |c_ULTIMATE.start_main_#t~nondet16#1|)) (forall ((v_ArrVal_267 (Array Int Int))) (= |c_ULTIMATE.start_main_#t~nondet16#1| (select (select (store |c_#race| |c_~#global~0.base| v_ArrVal_267) |c_ULTIMATE.start_main_~#t_ids~0#1.base|) (+ .cse0 |c_ULTIMATE.start_main_~#t_ids~0#1.offset| 1)))))) is different from false [2024-11-22 17:53:13,362 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (let ((.cse2 (+ .cse1 3 |c_ULTIMATE.start_main_~#t_ids~0#1.offset|))) (let ((.cse0 (store |c_#race| |c_ULTIMATE.start_main_~#t_ids~0#1.base| (store (select |c_#race| |c_ULTIMATE.start_main_~#t_ids~0#1.base|) .cse2 |c_ULTIMATE.start_main_#t~nondet16#1|)))) (and (forall ((v_ArrVal_267 (Array Int Int))) (= (select (select (store .cse0 |c_~#global~0.base| v_ArrVal_267) |c_ULTIMATE.start_main_~#t_ids~0#1.base|) (+ .cse1 |c_ULTIMATE.start_main_~#t_ids~0#1.offset|)) |c_ULTIMATE.start_main_#t~nondet16#1|)) (forall ((v_ArrVal_267 (Array Int Int))) (= (select (select (store .cse0 |c_~#global~0.base| v_ArrVal_267) |c_ULTIMATE.start_main_~#t_ids~0#1.base|) (+ .cse1 2 |c_ULTIMATE.start_main_~#t_ids~0#1.offset|)) |c_ULTIMATE.start_main_#t~nondet16#1|)) (forall ((v_ArrVal_267 (Array Int Int))) (= (select (select (store .cse0 |c_~#global~0.base| v_ArrVal_267) |c_ULTIMATE.start_main_~#t_ids~0#1.base|) .cse2) |c_ULTIMATE.start_main_#t~nondet16#1|)) (forall ((v_ArrVal_267 (Array Int Int))) (= |c_ULTIMATE.start_main_#t~nondet16#1| (select (select (store .cse0 |c_~#global~0.base| v_ArrVal_267) |c_ULTIMATE.start_main_~#t_ids~0#1.base|) (+ .cse1 |c_ULTIMATE.start_main_~#t_ids~0#1.offset| 1)))))))) is different from false [2024-11-22 17:53:13,500 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-22 17:53:13,501 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 51 treesize of output 67 [2024-11-22 17:53:13,516 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-22 17:53:13,517 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 111 treesize of output 35 [2024-11-22 17:53:13,529 INFO L349 Elim1Store]: treesize reduction 51, result has 1.9 percent of original size [2024-11-22 17:53:13,529 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 50 treesize of output 1 [2024-11-22 17:53:13,535 INFO L349 Elim1Store]: treesize reduction 51, result has 1.9 percent of original size [2024-11-22 17:53:13,537 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 51 treesize of output 1 [2024-11-22 17:53:13,547 INFO L349 Elim1Store]: treesize reduction 51, result has 1.9 percent of original size [2024-11-22 17:53:13,547 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 51 treesize of output 1 [2024-11-22 17:53:17,297 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 1 refuted. 2 times theorem prover too weak. 6 trivial. 1 not checked. [2024-11-22 17:53:17,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [473028981] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 17:53:17,298 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 17:53:17,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 20 [2024-11-22 17:53:17,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080058969] [2024-11-22 17:53:17,299 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 17:53:17,299 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-22 17:53:17,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 17:53:17,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-22 17:53:17,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=229, Unknown=17, NotChecked=102, Total=420 [2024-11-22 17:53:17,306 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 237 [2024-11-22 17:53:17,309 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 207 places, 638 transitions, 4917 flow. Second operand has 21 states, 21 states have (on average 105.19047619047619) internal successors, (2209), 21 states have internal predecessors, (2209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 17:53:17,309 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 17:53:17,309 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 237 [2024-11-22 17:53:17,309 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 17:53:34,784 INFO L124 PetriNetUnfolderBase]: 56162/110833 cut-off events. [2024-11-22 17:53:34,784 INFO L125 PetriNetUnfolderBase]: For 148415/154460 co-relation queries the response was YES. [2024-11-22 17:53:35,385 INFO L83 FinitePrefix]: Finished finitePrefix Result has 345393 conditions, 110833 events. 56162/110833 cut-off events. For 148415/154460 co-relation queries the response was YES. Maximal size of possible extension queue 1396. Compared 1115215 event pairs, 11945 based on Foata normal form. 2183/108048 useless extension candidates. Maximal degree in co-relation 302302. Up to 64432 conditions per place. [2024-11-22 17:53:35,814 INFO L140 encePairwiseOnDemand]: 194/237 looper letters, 428 selfloop transitions, 566 changer transitions 0/1072 dead transitions. [2024-11-22 17:53:35,814 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 216 places, 1072 transitions, 9752 flow [2024-11-22 17:53:35,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-22 17:53:35,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-22 17:53:35,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1449 transitions. [2024-11-22 17:53:35,818 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6113924050632912 [2024-11-22 17:53:35,818 INFO L175 Difference]: Start difference. First operand has 207 places, 638 transitions, 4917 flow. Second operand 10 states and 1449 transitions. [2024-11-22 17:53:35,818 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 216 places, 1072 transitions, 9752 flow